/* gtktreeview.c * Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "gtktreeview.h" #include "gtkrbtree.h" #include "gtktreednd.h" #include "gtktreeprivate.h" #include "gtkcellrenderer.h" #include "gtksignal.h" #include "gtkmain.h" #include "gtkbutton.h" #include "gtkalignment.h" #include "gtklabel.h" #include "gtkhbox.h" #include "gtkarrow.h" #include "gtkintl.h" #include /* The "background" areas of all rows/cells add up to cover the entire tree. * The background includes all inter-row and inter-cell spacing. * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(), * i.e. just the cells, no spacing. */ #define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (_gtk_rbtree_node_find_offset ((tree), (node)) + TREE_VIEW_HEADER_HEIGHT ((tree_view))) #define CELL_FIRST_PIXEL(tree_view,tree,node) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + TREE_VIEW_VERTICAL_SEPARATOR/2) #define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node)) #define CELL_HEIGHT(node) (BACKGROUND_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR); #define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) - TREE_VIEW_HEADER_HEIGHT (tree_view)) #define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) + TREE_VIEW_HEADER_HEIGHT (tree_view)) typedef struct _GtkTreeViewChild GtkTreeViewChild; struct _GtkTreeViewChild { GtkWidget *widget; gint x; gint y; }; enum { ROW_ACTIVATED, LAST_SIGNAL }; enum { PROP_0, PROP_MODEL, PROP_HADJUSTMENT, PROP_VADJUSTMENT, PROP_HEADERS_VISIBLE, PROP_HEADERS_CLICKABLE, PROP_EXPANDER_COLUMN, PROP_RULES_HINT }; static void gtk_tree_view_init (GtkTreeView *tree_view); static void gtk_tree_view_class_init (GtkTreeViewClass *klass); static void gtk_tree_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_tree_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); /* o signals */ static void gtk_tree_view_finalize (GObject *object); /* object signals */ static void gtk_tree_view_destroy (GtkObject *object); /* widget signals */ static void gtk_tree_view_setup_model (GtkTreeView *tree_view); static void gtk_tree_view_realize (GtkWidget *widget); static void gtk_tree_view_unrealize (GtkWidget *widget); static void gtk_tree_view_map (GtkWidget *widget); static void gtk_tree_view_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_tree_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_tree_view_expose (GtkWidget *widget, GdkEventExpose *event); static gboolean gtk_tree_view_motion (GtkWidget *widget, GdkEventMotion *event); static gboolean gtk_tree_view_enter_notify (GtkWidget *widget, GdkEventCrossing *event); static gboolean gtk_tree_view_leave_notify (GtkWidget *widget, GdkEventCrossing *event); static gboolean gtk_tree_view_button_press (GtkWidget *widget, GdkEventButton *event); static gboolean gtk_tree_view_button_release (GtkWidget *widget, GdkEventButton *event); static void gtk_tree_view_set_focus_child (GtkContainer *container, GtkWidget *child); static void gtk_tree_view_draw_focus (GtkWidget *widget); static gint gtk_tree_view_focus_in (GtkWidget *widget, GdkEventFocus *event); static gint gtk_tree_view_focus_out (GtkWidget *widget, GdkEventFocus *event); static gint gtk_tree_view_focus (GtkContainer *container, GtkDirectionType direction); /* container signals */ static void gtk_tree_view_remove (GtkContainer *container, GtkWidget *widget); static void gtk_tree_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); /* Source side drag signals */ static void gtk_tree_view_drag_begin (GtkWidget *widget, GdkDragContext *context); static void gtk_tree_view_drag_end (GtkWidget *widget, GdkDragContext *context); static void gtk_tree_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time); static void gtk_tree_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context); /* Target side drag signals */ static void gtk_tree_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time); static gboolean gtk_tree_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static gboolean gtk_tree_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static void gtk_tree_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time); /* tree_model signals */ static void gtk_tree_view_set_adjustments (GtkTreeView *tree_view, GtkAdjustment *hadj, GtkAdjustment *vadj); static void gtk_tree_view_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_has_child_toggled (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data); /* Internal functions */ static void gtk_tree_view_unref_tree (GtkTreeView *tree_view, GtkRBTree *tree); static void gtk_tree_view_queue_draw_node (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, GdkRectangle *clip_rect); static void gtk_tree_view_queue_draw_path (GtkTreeView *tree_view, GtkTreePath *path, GdkRectangle *clip_rect); static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, gint x, gint y); static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view, gint *x1, gint *x2); static gint gtk_tree_view_new_column_width (GtkTreeView *tree_view, gint i, gint *x); static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment, GtkTreeView *tree_view); static gint gtk_tree_view_insert_iter_height (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth); static void gtk_tree_view_build_tree (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth, gboolean recurse, gboolean calc_bounds); static void gtk_tree_view_calc_size (GtkTreeView *priv, GtkRBTree *tree, GtkTreeIter *iter, gint depth); static gboolean gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view, GtkTreeIter *iter, gint depth, gint *height); static void gtk_tree_view_discover_dirty (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth); static void gtk_tree_view_check_dirty (GtkTreeView *tree_view); #if 0 static void gtk_tree_view_create_button (GtkTreeView *tree_view, gint i); static void gtk_tree_view_create_buttons (GtkTreeView *tree_view); #endif static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node); static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view, GdkEventMotion *event); static void _gtk_tree_view_update_col_width (GtkTreeView *tree_view); static void gtk_tree_view_row_activated (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column); static GtkContainerClass *parent_class = NULL; static guint tree_view_signals[LAST_SIGNAL] = { 0 }; /* Class Functions */ GtkType gtk_tree_view_get_type (void) { static GtkType tree_view_type = 0; if (!tree_view_type) { static const GTypeInfo tree_view_info = { sizeof (GtkTreeViewClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_tree_view_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GtkTreeView), 0, /* n_preallocs */ (GInstanceInitFunc) gtk_tree_view_init }; tree_view_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTreeView", &tree_view_info, 0); } return tree_view_type; } static void gtk_tree_view_class_init (GtkTreeViewClass *class) { GObjectClass *o_class; GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; o_class = (GObjectClass *) class; object_class = (GtkObjectClass *) class; widget_class = (GtkWidgetClass *) class; container_class = (GtkContainerClass *) class; parent_class = g_type_class_peek_parent (class); o_class->finalize = gtk_tree_view_finalize; o_class->set_property = gtk_tree_view_set_property; o_class->get_property = gtk_tree_view_get_property; object_class->destroy = gtk_tree_view_destroy; widget_class->realize = gtk_tree_view_realize; widget_class->unrealize = gtk_tree_view_unrealize; widget_class->map = gtk_tree_view_map; widget_class->size_request = gtk_tree_view_size_request; widget_class->size_allocate = gtk_tree_view_size_allocate; widget_class->expose_event = gtk_tree_view_expose; widget_class->motion_notify_event = gtk_tree_view_motion; widget_class->enter_notify_event = gtk_tree_view_enter_notify; widget_class->leave_notify_event = gtk_tree_view_leave_notify; widget_class->button_press_event = gtk_tree_view_button_press; widget_class->button_release_event = gtk_tree_view_button_release; widget_class->focus_in_event = gtk_tree_view_focus_in; widget_class->focus_out_event = gtk_tree_view_focus_out; widget_class->drag_begin = gtk_tree_view_drag_begin; widget_class->drag_end = gtk_tree_view_drag_end; widget_class->drag_data_get = gtk_tree_view_drag_data_get; widget_class->drag_data_delete = gtk_tree_view_drag_data_delete; widget_class->drag_leave = gtk_tree_view_drag_leave; widget_class->drag_motion = gtk_tree_view_drag_motion; widget_class->drag_drop = gtk_tree_view_drag_drop; widget_class->drag_data_received = gtk_tree_view_drag_data_received; container_class->forall = gtk_tree_view_forall; container_class->remove = gtk_tree_view_remove; container_class->focus = gtk_tree_view_focus; class->set_scroll_adjustments = gtk_tree_view_set_adjustments; g_object_class_install_property (o_class, PROP_MODEL, g_param_spec_object ("model", _("TreeView Model"), _("The model for the tree view"), GTK_TYPE_TREE_MODEL, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_HADJUSTMENT, g_param_spec_object ("hadjustment", _("Horizontal Adjustment"), _("Horizontal Adjustment for the widget"), GTK_TYPE_ADJUSTMENT, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_VADJUSTMENT, g_param_spec_object ("vadjustment", _("Vertical Adjustment"), _("Vertical Adjustment for the widget"), GTK_TYPE_ADJUSTMENT, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_HEADERS_VISIBLE, g_param_spec_boolean ("headers_visible", _("Visible"), _("Show the column header buttons"), FALSE, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_HEADERS_CLICKABLE, g_param_spec_boolean ("headers_clickable", _("Headers Clickable"), _("Column headers respond to click events"), FALSE, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_EXPANDER_COLUMN, g_param_spec_uint ("expander_column", _("Expand Column"), _("Set the column number for the expander column"), 0, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (o_class, PROP_RULES_HINT, g_param_spec_boolean ("rules_hint", _("Rules Hint"), _("Set a hint to the theme engine to draw rows in alternating colors"), FALSE, G_PARAM_READWRITE)); widget_class->set_scroll_adjustments_signal = gtk_signal_new ("set_scroll_adjustments", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTreeViewClass, set_scroll_adjustments), gtk_marshal_VOID__OBJECT_OBJECT, GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); tree_view_signals[ROW_ACTIVATED] = gtk_signal_new ("row_activated", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTreeViewClass, row_activated), gtk_marshal_VOID__BOXED_OBJECT, GTK_TYPE_NONE, 2, GTK_TYPE_TREE_PATH, GTK_TYPE_TREE_VIEW_COLUMN); } static void gtk_tree_view_init (GtkTreeView *tree_view) { tree_view->priv = g_new0 (GtkTreeViewPrivate, 1); GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS); tree_view->priv->model = NULL; tree_view->priv->flags = GTK_TREE_VIEW_IS_LIST | GTK_TREE_VIEW_SHOW_EXPANDERS | GTK_TREE_VIEW_DRAW_KEYFOCUS | GTK_TREE_VIEW_HEADERS_VISIBLE; tree_view->priv->tab_offset = TREE_VIEW_EXPANDER_WIDTH; tree_view->priv->n_columns = 0; tree_view->priv->columns = NULL; tree_view->priv->button_pressed_node = NULL; tree_view->priv->button_pressed_tree = NULL; tree_view->priv->prelight_node = NULL; tree_view->priv->header_height = 1; tree_view->priv->x_drag = 0; tree_view->priv->drag_pos = -1; tree_view->priv->selection = NULL; tree_view->priv->anchor = NULL; tree_view->priv->cursor = NULL; tree_view->priv->header_has_focus = FALSE; tree_view->priv->pressed_button = -1; tree_view->priv->press_start_x = -1; tree_view->priv->press_start_y = -1; gtk_tree_view_set_adjustments (tree_view, NULL, NULL); _gtk_tree_view_update_size (tree_view); } /* Object methods */ static void gtk_tree_view_finalize (GObject *object) { GtkTreeView *tree_view = (GtkTreeView *) object; g_free (tree_view->priv); if (G_OBJECT_CLASS (parent_class)->finalize) (* G_OBJECT_CLASS (parent_class)->finalize) (object); } static void gtk_tree_view_destroy (GtkObject *object) { GtkTreeView *tree_view = (GtkTreeView *) object; GList *list; if (tree_view->priv->tree != NULL) { gtk_tree_view_unref_tree (tree_view, tree_view->priv->tree); _gtk_rbtree_free (tree_view->priv->tree); tree_view->priv->tree = NULL; } if (tree_view->priv->model != NULL) { g_object_unref (G_OBJECT (tree_view->priv->model)); tree_view->priv->model = NULL; } if (tree_view->priv->columns != NULL) { for (list = tree_view->priv->columns; list; list = list->next) g_object_unref (G_OBJECT (list->data)); g_list_free (tree_view->priv->columns); tree_view->priv->columns = NULL; } if (tree_view->priv->selection != NULL) { _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL); g_object_unref (tree_view->priv->selection); tree_view->priv->selection = NULL; } if (tree_view->priv->anchor != NULL) { gtk_tree_row_reference_free (tree_view->priv->anchor); tree_view->priv->anchor = NULL; } if (tree_view->priv->scroll_to_path != NULL) { gtk_tree_path_free (tree_view->priv->scroll_to_path); tree_view->priv->scroll_to_path = NULL; } if (tree_view->priv->drag_dest_row != NULL) { gtk_tree_row_reference_free (tree_view->priv->drag_dest_row); tree_view->priv->drag_dest_row = NULL; } if (tree_view->priv->cursor) { gtk_tree_row_reference_free (tree_view->priv->cursor); tree_view->priv->cursor = NULL; } if (GTK_OBJECT_CLASS (parent_class)->destroy) (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); } /* Property handlers */ static void gtk_tree_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (object); switch (prop_id) { case PROP_MODEL: gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (g_value_get_object (value))); break; case PROP_HADJUSTMENT: gtk_tree_view_set_hadjustment (tree_view, GTK_ADJUSTMENT (g_value_get_object (value))); break; case PROP_VADJUSTMENT: gtk_tree_view_set_vadjustment (tree_view, GTK_ADJUSTMENT (g_value_get_object (value))); break; case PROP_HEADERS_VISIBLE: gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value)); break; case PROP_HEADERS_CLICKABLE: gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value)); break; case PROP_EXPANDER_COLUMN: gtk_tree_view_set_expander_column (tree_view, g_value_get_uint (value)); break; case PROP_RULES_HINT: gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value)); break; default: break; } } static void gtk_tree_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (object); switch (prop_id) { case PROP_MODEL: g_value_set_object (value, G_OBJECT (tree_view->priv->model)); break; case PROP_HADJUSTMENT: g_value_set_object (value, G_OBJECT (tree_view->priv->hadjustment)); break; case PROP_VADJUSTMENT: g_value_set_object (value, G_OBJECT (tree_view->priv->vadjustment)); break; case PROP_HEADERS_VISIBLE: g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view)); break; case PROP_HEADERS_CLICKABLE: /* g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view)); */ break; case PROP_EXPANDER_COLUMN: g_value_set_uint (value, tree_view->priv->expander_column); break; case PROP_RULES_HINT: g_value_set_boolean (value, tree_view->priv->has_rules); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* Widget methods */ static void gtk_tree_view_realize (GtkWidget *widget) { GList *tmp_list; GtkTreeView *tree_view; GdkGCValues values; GdkWindowAttr attributes; gint attributes_mask; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); tree_view = GTK_TREE_VIEW (widget); gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); /* Make the main, clipping window */ attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (widget->window, widget); /* Make the window for the tree */ attributes.x = 0; attributes.y = 0; attributes.width = tree_view->priv->width; attributes.height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view); attributes.event_mask = GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_POINTER_MOTION_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | gtk_widget_get_events (widget); tree_view->priv->bin_window = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (tree_view->priv->bin_window, widget); /* Make the column header window */ attributes.x = 0; attributes.y = 0; attributes.width = MAX (tree_view->priv->width, widget->allocation.width); attributes.height = tree_view->priv->header_height; attributes.event_mask = (GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK) | gtk_widget_get_events (widget); tree_view->priv->header_window = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (tree_view->priv->header_window, widget); values.foreground = (widget->style->white.pixel==0 ? widget->style->black:widget->style->white); values.function = GDK_XOR; values.subwindow_mode = GDK_INCLUDE_INFERIORS; tree_view->priv->xor_gc = gdk_gc_new_with_values (widget->window, &values, GDK_GC_FOREGROUND | GDK_GC_FUNCTION | GDK_GC_SUBWINDOW); /* Add them all up. */ widget->style = gtk_style_attach (widget->style, widget->window); gdk_window_set_background (widget->window, &widget->style->base[widget->state]); gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]); gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL); tmp_list = tree_view->priv->children; while (tmp_list) { GtkTreeViewChild *child = tmp_list->data; tmp_list = tmp_list->next; gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window); } for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next) _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)); _gtk_tree_view_update_size (GTK_TREE_VIEW (widget)); if (tree_view->priv->scroll_to_path != NULL || tree_view->priv->scroll_to_column != NULL) { gtk_tree_view_scroll_to_cell (tree_view, tree_view->priv->scroll_to_path, tree_view->priv->scroll_to_column, tree_view->priv->scroll_to_row_align, tree_view->priv->scroll_to_col_align); if (tree_view->priv->scroll_to_path) { gtk_tree_path_free (tree_view->priv->scroll_to_path); tree_view->priv->scroll_to_path = NULL; } tree_view->priv->scroll_to_column = NULL; } } static void gtk_tree_view_unrealize (GtkWidget *widget) { GtkTreeView *tree_view; GList *list; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); tree_view = GTK_TREE_VIEW (widget); if (tree_view->priv->scroll_timeout != 0) { gtk_timeout_remove (tree_view->priv->scroll_timeout); tree_view->priv->scroll_timeout = 0; } if (tree_view->priv->open_dest_timeout != 0) { gtk_timeout_remove (tree_view->priv->open_dest_timeout); tree_view->priv->open_dest_timeout = 0; } for (list = tree_view->priv->columns; list; list = list->next) _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data)); gdk_window_set_user_data (tree_view->priv->bin_window, NULL); gdk_window_destroy (tree_view->priv->bin_window); tree_view->priv->bin_window = NULL; gdk_window_set_user_data (tree_view->priv->header_window, NULL); gdk_window_destroy (tree_view->priv->header_window); tree_view->priv->header_window = NULL; gdk_cursor_destroy (tree_view->priv->cursor_drag); gdk_gc_destroy (tree_view->priv->xor_gc); /* GtkWidget::unrealize destroys children and widget->window */ if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_tree_view_map_buttons (GtkTreeView *tree_view) { GList *list; g_return_if_fail (GTK_WIDGET_MAPPED (tree_view)); if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE)) { GtkTreeViewColumn *column; for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; if (GTK_WIDGET_VISIBLE (column->button) && !GTK_WIDGET_MAPPED (column->button)) gtk_widget_map (column->button); } for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; if (column->visible == FALSE) continue; if (column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE) { gdk_window_raise (column->window); gdk_window_show (column->window); } else gdk_window_hide (column->window); } gdk_window_show (tree_view->priv->header_window); } } static void gtk_tree_view_map (GtkWidget *widget) { GList *tmp_list; GtkTreeView *tree_view; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); tree_view = GTK_TREE_VIEW (widget); GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); tmp_list = tree_view->priv->children; while (tmp_list) { GtkTreeViewChild *child = tmp_list->data; tmp_list = tmp_list->next; if (GTK_WIDGET_VISIBLE (child->widget)) { if (!GTK_WIDGET_MAPPED (child->widget)) gtk_widget_map (child->widget); } } gdk_window_show (tree_view->priv->bin_window); gtk_tree_view_map_buttons (tree_view); gdk_window_show (widget->window); } static void gtk_tree_view_size_request_buttons (GtkTreeView *tree_view) { GList *list; tree_view->priv->header_height = 1; if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP)) { for (list = tree_view->priv->columns; list; list = list->next) { GtkRequisition requisition; GtkTreeViewColumn *column; column = list->data; gtk_widget_size_request (column->button, &requisition); gtk_tree_view_column_set_width (column, MAX (column->width, requisition.width)); tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height); } } } static void gtk_tree_view_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkTreeView *tree_view; GList *tmp_list; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); tree_view = GTK_TREE_VIEW (widget); requisition->width = 200; requisition->height = 200; tmp_list = tree_view->priv->children; while (tmp_list) { GtkTreeViewChild *child = tmp_list->data; GtkRequisition child_requisition; tmp_list = tmp_list->next; if (GTK_WIDGET_VISIBLE (child->widget)) gtk_widget_size_request (child->widget, &child_requisition); } gtk_tree_view_size_request_buttons (tree_view); } static void gtk_tree_view_size_allocate_buttons (GtkWidget *widget) { GtkTreeView *tree_view; GList *list; GtkTreeViewColumn *column; GtkAllocation allocation; gint width = 0; tree_view = GTK_TREE_VIEW (widget); allocation.y = 0; allocation.height = tree_view->priv->header_height; for (list = tree_view->priv->columns; list != NULL; list = list->next) { column = list->data; if (!column->visible) continue; allocation.x = width; allocation.width = column->displayed_width; width += column->width; gtk_widget_size_allocate (column->button, &allocation); if (column->window) gdk_window_move_resize (column->window, allocation.x + allocation.width - TREE_VIEW_DRAG_WIDTH/2, allocation.y, TREE_VIEW_DRAG_WIDTH, allocation.height); } } static void gtk_tree_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GList *tmp_list; GtkTreeView *tree_view; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); widget->allocation = *allocation; tree_view = GTK_TREE_VIEW (widget); gtk_tree_view_check_dirty (tree_view); tmp_list = tree_view->priv->children; while (tmp_list) { GtkAllocation allocation; GtkRequisition requisition; GtkTreeViewChild *child = tmp_list->data; tmp_list = tmp_list->next; allocation.x = child->x; allocation.y = child->y; gtk_widget_get_child_requisition (child->widget, &requisition); allocation.width = requisition.width; allocation.height = requisition.height; gtk_widget_size_allocate (child->widget, &allocation); } if (GTK_WIDGET_REALIZED (widget)) { gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height); gdk_window_move_resize (tree_view->priv->header_window, 0, 0, MAX (tree_view->priv->width, allocation->width), tree_view->priv->header_height); if (tree_view->priv->width < allocation->width) gdk_window_resize (tree_view->priv->bin_window, allocation->width, tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view)); _gtk_tree_view_update_col_width (tree_view); } gtk_tree_view_size_allocate_buttons (widget); tree_view->priv->hadjustment->page_size = allocation->width; tree_view->priv->hadjustment->page_increment = allocation->width / 2; tree_view->priv->hadjustment->lower = 0; tree_view->priv->hadjustment->upper = tree_view->priv->width; if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width) tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0); gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed"); tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view); tree_view->priv->vadjustment->page_increment = (allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2; tree_view->priv->vadjustment->lower = 0; tree_view->priv->vadjustment->upper = tree_view->priv->height; if (tree_view->priv->vadjustment->value + allocation->height > tree_view->priv->height) gtk_adjustment_set_value (tree_view->priv->vadjustment, MAX (tree_view->priv->height - allocation->height, 0)); gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed"); } GdkPixmap* gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view, GtkTreePath *path) { GtkTreeIter iter; GtkRBTree *tree; GtkRBNode *node; GtkCellRenderer *cell; gint i; gint cell_offset; GList *list; GdkRectangle background_area; GtkWidget *widget; gint depth; /* start drawing inside the black outline */ gint x = 1, y = 1; GdkDrawable *drawable; gint bin_window_width; widget = GTK_WIDGET (tree_view); depth = gtk_tree_path_get_depth (path); _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (tree == NULL) return NULL; if (!gtk_tree_model_get_iter (tree_view->priv->model, &iter, path)) return NULL; cell_offset = x; background_area.y = y; background_area.height = BACKGROUND_HEIGHT (node); gdk_drawable_get_size (tree_view->priv->bin_window, &bin_window_width, NULL); drawable = gdk_pixmap_new (tree_view->priv->bin_window, bin_window_width + 2, background_area.height + 2, -1); gdk_draw_rectangle (drawable, widget->style->base_gc[GTK_WIDGET_STATE (widget)], TRUE, 0, 0, bin_window_width + 2, background_area.height + 2); gdk_draw_rectangle (drawable, widget->style->black_gc, FALSE, 0, 0, bin_window_width + 1, background_area.height + 1); for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next) { GtkTreeViewColumn *column = list->data; GdkRectangle cell_area; gboolean visible; if (!column->visible) continue; cell = column->cell; gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, &iter); background_area.x = cell_offset; background_area.width = column->displayed_width; cell_area = background_area; cell_area.y += TREE_VIEW_VERTICAL_SEPARATOR / 2; cell_area.height -= TREE_VIEW_VERTICAL_SEPARATOR; if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS(tree_view)) { cell_area.x += depth * tree_view->priv->tab_offset; cell_area.width -= depth * tree_view->priv->tab_offset; } g_object_get (G_OBJECT (cell), "visible", &visible, NULL); if (visible) gtk_cell_renderer_render (cell, drawable, widget, &background_area, &cell_area, NULL, 0); cell_offset += column->displayed_width; } return drawable; } /* Warning: Very scary function. * Modify at your own risk */ static gboolean gtk_tree_view_bin_expose (GtkWidget *widget, GdkEventExpose *event) { GtkTreeView *tree_view; GtkTreePath *path; GtkRBTree *tree; GList *list; GtkRBNode *node; GtkRBNode *cursor = NULL; GtkRBTree *cursor_tree = NULL; GtkRBNode *drag_highlight = NULL; GtkRBTree *drag_highlight_tree = NULL; GtkTreeIter iter; GtkCellRenderer *cell; gint new_y; gint y_offset, x_offset, cell_offset; gint i, max_height; gint depth; GdkRectangle background_area; GdkRectangle cell_area; guint flags; gint highlight_x; gint bin_window_width; GtkTreePath *cursor_path; GtkTreePath *drag_dest_path; GList *last_column; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); tree_view = GTK_TREE_VIEW (widget); if (tree_view->priv->tree == NULL) return TRUE; gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget)); /* we want to account for a potential HEADER offset. * That is, if the header exists, we want to offset our event by its * height to find the right node. */ new_y = (event->area.yarea.y; /* y_offset is the */ y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y), &tree, &node) + new_y - event->area.y; if (node == NULL) return TRUE; /* find the path for the node */ path = _gtk_tree_view_find_path ((GtkTreeView *)widget, tree, node); gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); depth = gtk_tree_path_get_depth (path); gtk_tree_path_free (path); cursor_path = NULL; drag_dest_path = NULL; if (tree_view->priv->cursor) cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor); if (cursor_path) _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor); if (tree_view->priv->drag_dest_row) drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row); if (drag_dest_path) _gtk_tree_view_find_node (tree_view, drag_dest_path, &drag_highlight_tree, &drag_highlight); gdk_drawable_get_size (tree_view->priv->bin_window, &bin_window_width, NULL); for (last_column = g_list_last (tree_view->priv->columns); last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) && GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button); last_column = last_column->prev) ; /* Actually process the expose event. To do this, we want to * start at the first node of the event, and walk the tree in * order, drawing each successive node. */ do { /* Need to think about this more. if (tree_view->priv->show_expanders) max_height = MAX (TREE_VIEW_EXPANDER_MIN_HEIGHT, GTK_RBNODE_GET_HEIGHT (node)); else */ gboolean parity; max_height = BACKGROUND_HEIGHT (node); x_offset = -event->area.x; cell_offset = 0; highlight_x = 0; /* should match x coord of first cell */ background_area.y = y_offset + event->area.y; background_area.height = max_height; flags = 0; if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT)) flags |= GTK_CELL_RENDERER_PRELIT; parity = _gtk_rbtree_node_find_parity (tree, node); if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED)) flags |= GTK_CELL_RENDERER_SELECTED; for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next) { GtkTreeViewColumn *column = list->data; const gchar *detail = NULL; if (!column->visible) continue; if (cell_offset > event->area.x + event->area.width || cell_offset + column->displayed_width < event->area.x) { cell_offset += column->displayed_width; continue; } if (column->show_sort_indicator) flags |= GTK_CELL_RENDERER_SORTED; else flags &= ~GTK_CELL_RENDERER_SORTED; cell = column->cell; gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, &iter); background_area.x = cell_offset; background_area.width = column->displayed_width; cell_area = background_area; cell_area.y += TREE_VIEW_VERTICAL_SEPARATOR / 2; cell_area.height -= TREE_VIEW_VERTICAL_SEPARATOR; /* Select the detail for drawing the cell. relevant * factors are parity, sortedness, and whether to * display rules. */ /* FIXME when we have style properties, clean this up. */ if (tree_view->priv->has_rules) { if (flags & GTK_CELL_RENDERER_SORTED) { if (parity) detail = "cell_odd_ruled_sorted"; else detail = "cell_even_ruled_sorted"; } else { if (parity) detail = "cell_odd_ruled"; else detail = "cell_even_ruled"; } } else { if (flags & GTK_CELL_RENDERER_SORTED) { if (parity) detail = "cell_odd_sorted"; else detail = "cell_even_sorted"; } else { if (parity) detail = "cell_odd"; else detail = "cell_even"; } } g_assert (detail); /* Draw background */ gtk_paint_flat_box (widget->style, event->window, (flags & GTK_CELL_RENDERER_SELECTED) ? GTK_STATE_SELECTED : GTK_STATE_NORMAL, GTK_SHADOW_NONE, &event->area, widget, detail, background_area.x, background_area.y, background_area.width, background_area.height); if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS(tree_view)) { gboolean visible; cell_area.x += depth*tree_view->priv->tab_offset; cell_area.width -= depth*tree_view->priv->tab_offset; /* If we have an expander column, the highlight underline * starts with that column, so that it indicates which * level of the tree we're dropping at. */ highlight_x = cell_area.x; g_object_get (G_OBJECT (cell), "visible", &visible, NULL); if (visible) gtk_cell_renderer_render (cell, event->window, widget, &background_area, &cell_area, &event->area, flags); if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT) { gint x, y; gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, 0); gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget), tree, node, x, y); } } else { gboolean visible; g_object_get (G_OBJECT (cell), "visible", &visible, NULL); if (visible) gtk_cell_renderer_render (cell, event->window, widget, &background_area, &cell_area, &event->area, flags); } cell_offset += column->displayed_width; } if (node == cursor && GTK_WIDGET_HAS_FOCUS (widget)) gtk_tree_view_draw_focus (widget); if (node == drag_highlight) { /* Draw indicator for the drop */ gint highlight_y = -1; GtkRBTree *tree = NULL; GtkRBNode *node = NULL; gint width; switch (tree_view->priv->drag_dest_pos) { case GTK_TREE_VIEW_DROP_BEFORE: highlight_y = background_area.y - TREE_VIEW_VERTICAL_SEPARATOR/2; break; case GTK_TREE_VIEW_DROP_AFTER: highlight_y = background_area.y + background_area.height + TREE_VIEW_VERTICAL_SEPARATOR/2; break; case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE: case GTK_TREE_VIEW_DROP_INTO_OR_AFTER: _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node); if (tree == NULL) break; gdk_drawable_get_size (tree_view->priv->bin_window, &width, NULL); gtk_paint_focus (widget->style, tree_view->priv->bin_window, NULL, widget, "add-mode", 0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node), width - 1, BACKGROUND_HEIGHT (node) - 1); break; } if (highlight_y >= 0) { gdk_draw_line (event->window, widget->style->black_gc, highlight_x, highlight_y, bin_window_width - highlight_x, highlight_y); } } y_offset += max_height; if (node->children) { GtkTreeIter parent = iter; gboolean has_child; tree = node->children; node = tree->root; g_assert (node != tree->nil); while (node->left != tree->nil) node = node->left; has_child = gtk_tree_model_iter_children (tree_view->priv->model, &iter, &parent); cell = gtk_tree_view_get_column (tree_view, 0)->cell; depth++; /* Sanity Check! */ TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE); } else { gboolean done = FALSE; do { node = _gtk_rbtree_next (tree, node); if (node != NULL) { gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter); cell = gtk_tree_view_get_column (tree_view, 0)->cell; done = TRUE; /* Sanity Check! */ TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE); } else { GtkTreeIter parent_iter = iter; gboolean has_parent; node = tree->parent_node; tree = tree->parent_tree; if (tree == NULL) /* we've run out of tree. It's okay to return though, as * we'd only break out of the while loop below. */ return TRUE; has_parent = gtk_tree_model_iter_parent (tree_view->priv->model, &iter, &parent_iter); depth--; /* Sanity check */ TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE); } } while (!done); } } while (y_offset < event->area.height); if (cursor_path) gtk_tree_path_free (cursor_path); if (drag_dest_path) gtk_tree_path_free (drag_dest_path); return TRUE; } static gboolean gtk_tree_view_expose (GtkWidget *widget, GdkEventExpose *event) { GtkTreeView *tree_view; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); tree_view = GTK_TREE_VIEW (widget); if (event->window == tree_view->priv->bin_window) return gtk_tree_view_bin_expose (widget, event); return TRUE; } static gboolean coords_are_over_arrow (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, /* these are in tree window coords */ gint x, gint y) { GdkRectangle arrow; gint x2; if (!GTK_WIDGET_REALIZED (tree_view)) return FALSE; if ((node->flags & GTK_RBNODE_IS_PARENT) == 0) return FALSE; arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node); arrow.height = BACKGROUND_HEIGHT (node); gtk_tree_view_get_arrow_xrange (tree_view, &arrow.x, &x2); arrow.width = x2 - arrow.x; return (x >= arrow.x && x < (arrow.x + arrow.height) && y >= arrow.y && y < (arrow.y + arrow.height)); } static void do_unprelight (GtkTreeView *tree_view, /* these are in tree window coords */ gint x, gint y) { if (tree_view->priv->prelight_node == NULL) return; GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT); if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) && !coords_are_over_arrow (tree_view, tree_view->priv->prelight_tree, tree_view->priv->prelight_node, x, y)) /* We need to unprelight the old arrow. */ { GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT); gtk_tree_view_draw_arrow (tree_view, tree_view->priv->prelight_tree, tree_view->priv->prelight_node, x, y); } tree_view->priv->prelight_node = NULL; tree_view->priv->prelight_tree = NULL; } static void do_prelight (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, /* these are in tree window coords */ gint x, gint y) { if (coords_are_over_arrow (tree_view, tree, node, x, y)) GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT); tree_view->priv->prelight_node = node; tree_view->priv->prelight_tree = tree; GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT); } static void ensure_unprelighted (GtkTreeView *tree_view) { do_unprelight (tree_view, -1000, -1000); /* coords not possibly over an arrow */ } static gboolean gtk_tree_view_motion (GtkWidget *widget, GdkEventMotion *event) { GtkTreeView *tree_view; GtkRBTree *tree; GtkRBNode *node; gint new_y; GtkRBTree *old_prelight_tree; GtkRBNode *old_prelight_node; tree_view = (GtkTreeView *) widget; if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE)) { gint x; gint new_width; if (event->is_hint || event->window != widget->window) gtk_widget_get_pointer (widget, &x, NULL); else x = event->x; new_width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos, &x); if (x != tree_view->priv->x_drag) { gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos), new_width); } /* FIXME: Do we need to scroll */ _gtk_tree_view_update_size (GTK_TREE_VIEW (widget)); return FALSE; } /* Sanity check it */ if (event->window != tree_view->priv->bin_window) return FALSE; if (tree_view->priv->tree == NULL) return FALSE; gtk_tree_view_maybe_begin_dragging_row (tree_view, event); old_prelight_tree = tree_view->priv->prelight_tree; old_prelight_node = tree_view->priv->prelight_node; do_unprelight (tree_view, event->x, event->y); new_y = ((gint)event->yy; _gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y), &tree, &node); if (tree == NULL) return TRUE; /* If we are currently pressing down a button, we don't want to prelight anything else. */ if ((tree_view->priv->button_pressed_node != NULL) && (tree_view->priv->button_pressed_node != node)) return TRUE; do_prelight (tree_view, tree, node, event->x, new_y); if (old_prelight_node != tree_view->priv->prelight_node) { if (old_prelight_node) gtk_tree_view_queue_draw_node (tree_view, old_prelight_tree, old_prelight_node, NULL); if (tree_view->priv->prelight_node) gtk_tree_view_queue_draw_node (tree_view, tree_view->priv->prelight_tree, tree_view->priv->prelight_node, NULL); } return TRUE; } /* FIXME Is this function necessary? Can I get an enter_notify event * w/o either an expose event or a mouse motion event? */ static gboolean gtk_tree_view_enter_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkTreeView *tree_view; GtkRBTree *tree; GtkRBNode *node; gint new_y; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); tree_view = GTK_TREE_VIEW (widget); /* Sanity check it */ if (event->window != tree_view->priv->bin_window) return FALSE; if (tree_view->priv->tree == NULL) return FALSE; if ((tree_view->priv->button_pressed_node != NULL) && (tree_view->priv->button_pressed_node != node)) return TRUE; /* find the node internally */ new_y = ((gint)event->yy; _gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y), &tree, &node); if (node == NULL) return FALSE; do_prelight (tree_view, tree, node, event->x, new_y); if (tree_view->priv->prelight_node) gtk_tree_view_queue_draw_node (tree_view, tree_view->priv->prelight_tree, tree_view->priv->prelight_node, NULL); return TRUE; } static gboolean gtk_tree_view_leave_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkTreeView *tree_view; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); tree_view = GTK_TREE_VIEW (widget); if (tree_view->priv->prelight_node) gtk_tree_view_queue_draw_node (tree_view, tree_view->priv->prelight_tree, tree_view->priv->prelight_node, NULL); ensure_unprelighted (tree_view); return TRUE; } static gboolean gtk_tree_view_button_press (GtkWidget *widget, GdkEventButton *event) { GtkTreeView *tree_view; GList *list; GtkTreeViewColumn *column = NULL; gint i; GdkRectangle background_area; GdkRectangle cell_area; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); tree_view = GTK_TREE_VIEW (widget); if (event->window == tree_view->priv->bin_window) { GtkRBNode *node; GtkRBTree *tree; GtkTreePath *path; gchar *path_string; gint depth; gint new_y; gint y_offset; GtkTreeViewColumn *column = NULL; if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS); /* are we in an arrow? */ if (tree_view->priv->prelight_node && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)) { if (event->button == 1) { gtk_grab_add (widget); tree_view->priv->button_pressed_node = tree_view->priv->prelight_node; tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree; gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget), tree_view->priv->prelight_tree, tree_view->priv->prelight_node, event->x, event->y); } return TRUE; } /* find the node that was clicked */ new_y = ((gint)event->yy; y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y), &tree, &node) + new_y - (gint)event->y; if (node == NULL) /* We clicked in dead space */ return TRUE; /* Get the path and the node */ path = _gtk_tree_view_find_path (tree_view, tree, node); depth = gtk_tree_path_get_depth (path); background_area.y = y_offset + event->y + TREE_VIEW_VERTICAL_SEPARATOR; background_area.height = GTK_RBNODE_GET_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR; background_area.x = 0; /* Let the cell have a chance at selecting it. */ for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next) { GtkCellRenderer *cell; GtkTreeIter iter; gboolean visible; gboolean can_activate; column = list->data; if (!column->visible) continue; background_area.width = column->displayed_width; if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS(tree_view)) { cell_area = background_area; cell_area.x += depth*tree_view->priv->tab_offset; cell_area.width -= depth*tree_view->priv->tab_offset; } else { cell_area = background_area; } cell = column->cell; if ((background_area.x > (gint) event->x) || (background_area.y > (gint) event->y) || (background_area.x + background_area.width <= (gint) event->x) || (background_area.y + background_area.height <= (gint) event->y)) { background_area.x += background_area.width; continue; } gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, &iter); path_string = gtk_tree_path_to_string (path); g_object_get (G_OBJECT (cell), "visible", &visible, "can_activate", &can_activate, NULL); if (visible && can_activate && gtk_cell_renderer_event (cell, (GdkEvent *)event, widget, path_string, &background_area, &cell_area, 0)) { g_free (path_string); gtk_tree_path_free (path); return TRUE; } else { g_free (path_string); break; } } if (column == NULL) return FALSE; /* Save press to possibly begin a drag */ if (tree_view->priv->pressed_button < 0) { tree_view->priv->pressed_button = event->button; tree_view->priv->press_start_x = event->x; tree_view->priv->press_start_y = event->y; } /* Handle the selection */ if (tree_view->priv->selection == NULL) tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view); _gtk_tree_selection_internal_select_node (tree_view->priv->selection, node, tree, path, event->state); if (event->button == 1 && event->type == GDK_2BUTTON_PRESS) gtk_tree_view_row_activated (tree_view, path, column); gtk_tree_path_free (path); return TRUE; } for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++) { column = list->data; if (event->window == column->window && column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE && column->window) { gpointer drag_data; if (gdk_pointer_grab (column->window, FALSE, GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, NULL, NULL, event->time)) return FALSE; gtk_grab_add (widget); GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE); /* block attached dnd signal handler */ drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data"); if (drag_data) gtk_signal_handler_block_by_data (GTK_OBJECT (widget), drag_data); if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); tree_view->priv->drag_pos = i; tree_view->priv->x_drag = (column->button->allocation.x + column->button->allocation.width); } } return TRUE; } static gboolean gtk_tree_view_button_release (GtkWidget *widget, GdkEventButton *event) { GtkTreeView *tree_view; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); tree_view = GTK_TREE_VIEW (widget); if (tree_view->priv->pressed_button == event->button) tree_view->priv->pressed_button = -1; if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE)) { gpointer drag_data; gint width; gint x; gint i; i = tree_view->priv->drag_pos; tree_view->priv->drag_pos = -1; /* unblock attached dnd signal handler */ drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data"); if (drag_data) gtk_signal_handler_unblock_by_data (GTK_OBJECT (widget), drag_data); GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE); gtk_widget_get_pointer (widget, &x, NULL); gtk_grab_remove (widget); gdk_pointer_ungrab (event->time); width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), i, &x); gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), i), width); return FALSE; } if (tree_view->priv->button_pressed_node == NULL) return FALSE; if (event->button == 1) { gtk_grab_remove (widget); if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)) { GtkTreePath *path; GtkTreeIter iter; /* Actually activate the node */ if (tree_view->priv->button_pressed_node->children == NULL) { GtkTreeIter child; path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget), tree_view->priv->button_pressed_tree, tree_view->priv->button_pressed_node); tree_view->priv->button_pressed_node->children = _gtk_rbtree_new (); tree_view->priv->button_pressed_node->children->parent_tree = tree_view->priv->button_pressed_tree; tree_view->priv->button_pressed_node->children->parent_node = tree_view->priv->button_pressed_node; gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); if (gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter)) gtk_tree_view_build_tree (tree_view, tree_view->priv->button_pressed_node->children, &child, gtk_tree_path_get_depth (path) + 1, FALSE, GTK_WIDGET_REALIZED (widget)); } else { path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget), tree_view->priv->button_pressed_node->children, tree_view->priv->button_pressed_node->children->root); gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); gtk_tree_view_discover_dirty (GTK_TREE_VIEW (widget), tree_view->priv->button_pressed_node->children, &iter, gtk_tree_path_get_depth (path)); gtk_tree_view_unref_tree (GTK_TREE_VIEW (widget), tree_view->priv->button_pressed_node->children); _gtk_rbtree_remove (tree_view->priv->button_pressed_node->children); } gtk_tree_path_free (path); _gtk_tree_view_update_size (GTK_TREE_VIEW (widget)); } tree_view->priv->button_pressed_node = NULL; } return TRUE; } static void gtk_tree_view_set_focus_child (GtkContainer *container, GtkWidget *child) { } static void gtk_tree_view_draw_focus (GtkWidget *widget) { GtkTreeView *tree_view; GtkTreePath *cursor_path; GtkRBTree *tree = NULL; GtkRBNode *node = NULL; gint x, y; gint width, height; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (widget)); tree_view = GTK_TREE_VIEW (widget); if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS)) return; if (tree_view->priv->cursor == NULL) return; cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor); if (cursor_path == NULL) return; _gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node); if (tree == NULL) { gtk_tree_path_free (cursor_path); return; } gdk_drawable_get_size (tree_view->priv->bin_window, &width, NULL); x = 0; y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node); gdk_drawable_get_size (tree_view->priv->bin_window, &width, NULL); width = width - 1; height = BACKGROUND_HEIGHT (node) - 1; if (tree_view->priv->focus_column != NULL) { GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (tree_view->priv->focus_column->data); gboolean visible; gboolean can_focus; g_object_get (G_OBJECT (column->cell), "can_activate", &can_focus, "visible", &visible, NULL); if (can_focus && visible) { GtkTreeIter iter; GdkRectangle cell_area; gint x_offset; gint y_offset; cell_area.x = column->button->allocation.x; cell_area.y = y; cell_area.width = column->displayed_width; cell_area.height = CELL_HEIGHT (node); gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path); gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, &iter); gtk_cell_renderer_get_size (column->cell, GTK_WIDGET (tree_view), &cell_area, &x_offset, &y_offset, &width, &height); width += 2; height += 2; x = cell_area.x + x_offset - 1; y = cell_area.y + y_offset - 1 + TREE_VIEW_VERTICAL_SEPARATOR/2; } } gtk_paint_focus (widget->style, tree_view->priv->bin_window, NULL, widget, "add-mode", x, y, width, height); gtk_tree_path_free (cursor_path); } static gint gtk_tree_view_focus_in (GtkWidget *widget, GdkEventFocus *event) { GtkTreeView *tree_view; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); tree_view = GTK_TREE_VIEW (widget); GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS); /* FIXME don't redraw so much */ gtk_widget_queue_draw (widget); return FALSE; } static gint gtk_tree_view_focus_out (GtkWidget *widget, GdkEventFocus *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS); /* FIXME don't redraw so much */ gtk_widget_queue_draw (widget); return FALSE; } /* Returns TRUE if the focus is within the headers, after the focus operation is * done */ static gboolean gtk_tree_view_header_focus (GtkTreeView *tree_view, GtkDirectionType dir) { GtkWidget *focus_child; GtkContainer *container; GList *last_column, *first_column; GList *tmp_list; if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE)) return FALSE; focus_child = GTK_CONTAINER (tree_view)->focus_child; container = GTK_CONTAINER (tree_view); for (last_column = g_list_last (tree_view->priv->columns); last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) && GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button); last_column = last_column->prev); for (first_column = tree_view->priv->columns; first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible) && GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button); first_column = first_column->next); /* No headers are visible, or are focusable. We can't focus in or out. */ if (last_column == NULL) return FALSE; switch (dir) { case GTK_DIR_TAB_BACKWARD: case GTK_DIR_TAB_FORWARD: case GTK_DIR_UP: case GTK_DIR_DOWN: if (focus_child == NULL) { if (tree_view->priv->focus_column != NULL) focus_child = GTK_TREE_VIEW_COLUMN (tree_view->priv->focus_column->data)->button; else focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button; gtk_widget_grab_focus (focus_child); break; } return FALSE; case GTK_DIR_LEFT: case GTK_DIR_RIGHT: if (focus_child == NULL) { if (tree_view->priv->focus_column != NULL) focus_child = GTK_TREE_VIEW_COLUMN (tree_view->priv->focus_column->data)->button; else if (dir == GTK_DIR_LEFT) focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button; else focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button; gtk_widget_grab_focus (focus_child); break; } if (gtk_container_focus (GTK_CONTAINER (focus_child), dir)) { /* The focus moves inside the button. */ /* This is probably a great example of bad UI */ break; } /* We need to move the focus among the row of buttons. */ for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next) if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child) break; if (tmp_list == first_column && dir == GTK_DIR_LEFT) { focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button; gtk_widget_grab_focus (focus_child); break; } else if (tmp_list == last_column && dir == GTK_DIR_RIGHT) { focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button; gtk_widget_grab_focus (focus_child); break; } while (tmp_list) { GtkTreeViewColumn *column; if (dir == GTK_DIR_RIGHT) tmp_list = tmp_list->next; else tmp_list = tmp_list->prev; if (tmp_list == NULL) { g_warning ("Internal button not found"); break; } column = tmp_list->data; if (column->button && column->visible && GTK_WIDGET_CAN_FOCUS (column->button)) { focus_child = column->button; gtk_widget_grab_focus (column->button); break; } } break; default: g_assert_not_reached (); break; } /* if focus child is non-null, we assume it's been set to the current focus child */ if (focus_child) { for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next) if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child) break; tree_view->priv->focus_column = tmp_list; /* If the following isn't true, then the view is smaller then the scrollpane. */ if ((focus_child->allocation.x + focus_child->allocation.width) <= (tree_view->priv->hadjustment->upper)) { /* Scroll to the button, if needed */ if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (focus_child->allocation.x + focus_child->allocation.width)) gtk_adjustment_set_value (tree_view->priv->hadjustment, focus_child->allocation.x + focus_child->allocation.width - tree_view->priv->hadjustment->page_size); else if (tree_view->priv->hadjustment->value > focus_child->allocation.x) gtk_adjustment_set_value (tree_view->priv->hadjustment, focus_child->allocation.x); } } return (focus_child != NULL); } /* WARNING: Somewhat scary function */ /* We make the assumption that if container->focus_child != NULL, the focus must * be in the header. For now, this is accurate. It may not be in the future. */ static gint gtk_tree_view_focus (GtkContainer *container, GtkDirectionType direction) { GtkTreeView *tree_view; GtkWidget *focus_child; GdkEvent *event; GtkRBTree *cursor_tree; GtkRBNode *cursor_node; GtkTreePath *cursor_path; g_return_val_if_fail (container != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (container), FALSE); g_return_val_if_fail (GTK_WIDGET_VISIBLE (container), FALSE); tree_view = GTK_TREE_VIEW (container); if (!GTK_WIDGET_IS_SENSITIVE (container)) return FALSE; focus_child = container->focus_child; /* Case 1. Headers have focus. */ if (focus_child) { switch (direction) { case GTK_DIR_LEFT: case GTK_DIR_RIGHT: return (gtk_tree_view_header_focus (tree_view, direction)); case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: return FALSE; case GTK_DIR_TAB_FORWARD: case GTK_DIR_DOWN: if (tree_view->priv->tree == NULL) return FALSE; GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS); gtk_widget_grab_focus (GTK_WIDGET (container)); if (tree_view->priv->selection == NULL) tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view); /* if there is no keyboard focus yet, we select the first node */ cursor_path = NULL; if (tree_view->priv->cursor) cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor); if (cursor_path == NULL) { GtkTreePath *tmp_path = gtk_tree_path_new_root (); if (tree_view->priv->cursor) gtk_tree_row_reference_free (tree_view->priv->cursor); tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, tmp_path); cursor_path = tmp_path; } gtk_tree_selection_select_path (tree_view->priv->selection, cursor_path); gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL); gtk_tree_path_free (cursor_path); return TRUE; } } /* Case 2. We don't have focus at all. */ if (!GTK_WIDGET_HAS_FOCUS (container)) { if ((direction == GTK_DIR_TAB_FORWARD) || (direction == GTK_DIR_RIGHT) || (direction == GTK_DIR_DOWN) || (direction == GTK_DIR_LEFT) || (tree_view->priv->tree == NULL)) return gtk_tree_view_header_focus (tree_view, direction); /* The headers didn't want the focus, so we take it. */ GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS); gtk_widget_grab_focus (GTK_WIDGET (container)); if (tree_view->priv->selection == NULL) tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view); cursor_path = NULL; if (tree_view->priv->cursor) cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor); if (cursor_path == NULL) { GtkTreePath *tmp_path = gtk_tree_path_new_root (); if (tree_view->priv->cursor) gtk_tree_row_reference_free (tree_view->priv->cursor); tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, tmp_path); cursor_path = tmp_path; } gtk_tree_selection_select_path (tree_view->priv->selection, cursor_path); gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL); gtk_tree_path_free (cursor_path); return TRUE; } /* Case 3. We have focus already. */ if (tree_view->priv->tree == NULL) return FALSE; if (direction == GTK_DIR_TAB_BACKWARD) return (gtk_tree_view_header_focus (tree_view, direction)); else if (direction == GTK_DIR_TAB_FORWARD) return FALSE; cursor_path = NULL; if (tree_view->priv->cursor) cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor); /* Do we have a focus path? We should, unless it was deleted. */ /* in that case, we pick the first one arbitrarily */ if (cursor_path == NULL) { GtkTreePath *tmp_path = gtk_tree_path_new_root (); if (tree_view->priv->cursor) gtk_tree_row_reference_free (tree_view->priv->cursor); tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, tmp_path); cursor_path = tmp_path; gtk_tree_selection_select_path (tree_view->priv->selection, cursor_path); gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL); gtk_tree_path_free (cursor_path); return TRUE; } /* Case 4. We have focus already. Move the cursor. */ if (direction == GTK_DIR_LEFT) { gdouble val; val = tree_view->priv->hadjustment->value - tree_view->priv->hadjustment->page_size/2; val = MAX (val, 0.0); gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_tree_path_free (cursor_path); return TRUE; } if (direction == GTK_DIR_RIGHT) { gdouble val; val = tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size/2; val = MIN (tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size, val); gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_tree_path_free (cursor_path); return TRUE; } cursor_tree = NULL; cursor_node = NULL; _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node); /* undraw the old row */ gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL); gtk_tree_path_free (cursor_path); cursor_path = NULL; if (tree_view->priv->cursor) { gtk_tree_row_reference_free (tree_view->priv->cursor); tree_view->priv->cursor = NULL; } switch (direction) { case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: _gtk_rbtree_prev_full (cursor_tree, cursor_node, &cursor_tree, &cursor_node); break; case GTK_DIR_TAB_FORWARD: case GTK_DIR_DOWN: _gtk_rbtree_next_full (cursor_tree, cursor_node, &cursor_tree, &cursor_node); break; default: break; } if (cursor_node) { GdkModifierType state = 0; event = gtk_get_current_event (); if (event) gdk_event_get_state (event, &state); if (event) gdk_event_free (event); cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node); if (cursor_path) { _gtk_tree_selection_internal_select_node (tree_view->priv->selection, cursor_node, cursor_tree, cursor_path, state); tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, cursor_path); /* draw the newly-selected row */ gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL); gtk_tree_path_free (cursor_path); } gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); return TRUE; } /* At this point, we've progressed beyond the edge of the rows. */ if (direction == GTK_DIR_UP) /* We can't go back anymore. Try the headers */ return (gtk_tree_view_header_focus (tree_view, direction)); /* we've reached the end of the tree. Go on. */ return FALSE; } /* Container method */ static void gtk_tree_view_remove (GtkContainer *container, GtkWidget *widget) { GtkTreeView *tree_view; GtkTreeViewChild *child = NULL; GList *tmp_list; g_return_if_fail (container != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (container)); tree_view = GTK_TREE_VIEW (container); tmp_list = tree_view->priv->children; while (tmp_list) { child = tmp_list->data; if (child->widget == widget) { gtk_widget_unparent (widget); tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list); g_list_free_1 (tmp_list); g_free (child); return; } tmp_list = tmp_list->next; } tmp_list = tree_view->priv->columns; while (tmp_list) { GtkTreeViewColumn *column; column = tmp_list->data; if (column->button == widget) { gtk_widget_unparent (widget); return; } tmp_list = tmp_list->next; } } static void gtk_tree_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkTreeView *tree_view; GtkTreeViewChild *child = NULL; GtkTreeViewColumn *column; GList *tmp_list; g_return_if_fail (container != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (container)); g_return_if_fail (callback != NULL); tree_view = GTK_TREE_VIEW (container); tmp_list = tree_view->priv->children; while (tmp_list) { child = tmp_list->data; tmp_list = tmp_list->next; (* callback) (child->widget, callback_data); } if (include_internals == FALSE) return; for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next) { column = tmp_list->data; if (column->button) (* callback) (column->button, callback_data); } } void gtk_tree_view_row_activated (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_signal_emit (G_OBJECT(tree_view), tree_view_signals[ROW_ACTIVATED], 0, path, column); } /* TreeModel Callbacks */ static void gtk_tree_view_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkRBTree *tree; GtkRBNode *node; gint height; gboolean dirty_marked; gboolean free_path = FALSE; g_return_if_fail (path != NULL || iter != NULL); if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, iter, path); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) /* We aren't actually showing the node */ goto done; if (tree == NULL) goto done; dirty_marked = gtk_tree_view_discover_dirty_iter (tree_view, iter, gtk_tree_path_get_depth (path), &height); if (GTK_RBNODE_GET_HEIGHT (node) != height + TREE_VIEW_VERTICAL_SEPARATOR) { _gtk_rbtree_node_set_height (tree, node, height + TREE_VIEW_VERTICAL_SEPARATOR); gtk_widget_queue_resize (GTK_WIDGET (data)); goto done; } if (dirty_marked) gtk_widget_queue_resize (GTK_WIDGET (data)); else { gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL); } done: if (free_path) gtk_tree_path_free (path); } static void gtk_tree_view_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *) data; gint *indices; GtkRBTree *tmptree, *tree; GtkRBNode *tmpnode = NULL; gint max_height; gint depth; gint i = 0; gboolean free_path = FALSE; if (tree_view->priv->tree == NULL) tree_view->priv->tree = _gtk_rbtree_new (); tmptree = tree = tree_view->priv->tree; g_return_if_fail (path != NULL || iter != NULL); if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, iter, path); /* Update all row-references */ gtk_tree_row_reference_inserted (G_OBJECT (data), path); depth = gtk_tree_path_get_depth (path); indices = gtk_tree_path_get_indices (path); /* First, find the parent tree */ while (i < depth - 1) { if (tmptree == NULL) { /* We aren't showing the node */ goto done; } tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1); if (tmpnode == NULL) { g_warning ("A node was inserted with a parent that's not in the tree.\n" \ "This possibly means that a GtkTreeModel inserted a child node\n" \ "before the parent was inserted."); goto done; } else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT)) { /* FIXME enforce correct behavior on model, probably */ /* In theory, the model should have emitted has_child_toggled here. We * try to catch it anyway, just to be safe, in case the model hasn't. */ GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view, tree, tmpnode); gtk_tree_view_has_child_toggled (model, tmppath, NULL, data); gtk_tree_path_free (tmppath); goto done; } tmptree = tmpnode->children; tree = tmptree; i++; } if (tree == NULL) goto done; /* ref the node */ gtk_tree_model_ref_node (tree_view->priv->model, iter); max_height = gtk_tree_view_insert_iter_height (tree_view, tree, iter, depth); if (indices[depth - 1] == 0) { tmpnode = _gtk_rbtree_find_count (tree, 1); _gtk_rbtree_insert_before (tree, tmpnode, max_height); } else { tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]); _gtk_rbtree_insert_after (tree, tmpnode, max_height); } _gtk_tree_view_update_size (tree_view); done: if (free_path) gtk_tree_path_free (path); } static void gtk_tree_view_has_child_toggled (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkTreeIter real_iter; gboolean has_child; GtkRBTree *tree; GtkRBNode *node; gboolean free_path = FALSE; g_return_if_fail (path != NULL || iter != NULL); if (iter) real_iter = *iter; if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, &real_iter, path); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) /* We aren't actually showing the node */ goto done; if (tree == NULL) goto done; has_child = gtk_tree_model_iter_has_child (model, &real_iter); /* Sanity check. */ if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child) goto done; if (has_child) GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT); else GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT); if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST)) { GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST); if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS)) { GList *list; for (list = tree_view->priv->columns; list; list = list->next) if (GTK_TREE_VIEW_COLUMN (list->data)->visible) { GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE; break; } } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } else { /* FIXME: Just redraw the node */ gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } done: if (free_path) gtk_tree_path_free (path); } static void gtk_tree_view_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkRBTree *tree; GtkRBNode *node; GList *list; g_return_if_fail (path != NULL); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return; if (tree == NULL) return; gtk_tree_row_reference_deleted (G_OBJECT (data), path); /* next, update the selection */ if (tree_view->priv->anchor) { GtkTreePath *anchor_path; /* the row reference may not have been updated yet. If it has not, * then anchor_path and path being equal indicates that the anchor * row was deleted. If it has, then anchor_path == NULL indicates the * the anchor row was deleted. */ anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor); if (anchor_path == NULL || gtk_tree_path_compare (path, anchor_path) == 0) { if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED) && tree_view->priv->selection) gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->selection), "selection_changed"); } if (anchor_path) gtk_tree_path_free (anchor_path); } for (list = tree_view->priv->columns; list; list = list->next) if (((GtkTreeViewColumn *)list->data)->visible && ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE) ((GtkTreeViewColumn *)list->data)->dirty = TRUE; /* Ensure we don't have a dangling pointer to a dead node */ ensure_unprelighted (tree_view); g_assert (tree_view->priv->prelight_node == NULL); if (tree->root->count == 1) { if (tree_view->priv->tree == tree) tree_view->priv->tree = NULL; _gtk_rbtree_remove (tree); } else { _gtk_rbtree_remove_node (tree, node); } _gtk_tree_view_update_size (GTK_TREE_VIEW (data)); } /* Internal tree functions */ static gint gtk_tree_view_insert_iter_height (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth) { GtkTreeViewColumn *column; GtkCellRenderer *cell; GList *list; gint max_height = 0; gint i; i = 0; /* do stuff with node */ for (list = tree_view->priv->columns; list; list = list->next) { gint height = 0, width = 0; column = list->data; if (!column->visible) continue; if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED) { ++i; continue; } cell = column->cell; gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter); gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), NULL, NULL, NULL, &width, &height); max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height); if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS (tree_view)) gtk_tree_view_column_set_width (column, MAX (column->width, depth * tree_view->priv->tab_offset + width)); else gtk_tree_view_column_set_width (column, MAX (column->width, width)); ++i; } return max_height; } static void gtk_tree_view_build_tree (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth, gboolean recurse, gboolean calc_bounds) { GtkRBNode *temp = NULL; gint max_height; do { max_height = 0; if (calc_bounds) max_height = gtk_tree_view_insert_iter_height (tree_view, tree, iter, depth); gtk_tree_model_ref_node (tree_view->priv->model, iter); temp = _gtk_rbtree_insert_after (tree, temp, max_height); if (recurse) { GtkTreeIter child; if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter)) { temp->children = _gtk_rbtree_new (); temp->children->parent_tree = tree; temp->children->parent_node = temp; gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse, calc_bounds); } } if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)) { if ((temp->flags>K_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT) temp->flags ^= GTK_RBNODE_IS_PARENT; GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST); } } while (gtk_tree_model_iter_next (tree_view->priv->model, iter)); } static void gtk_tree_view_calc_size (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth) { GtkRBNode *temp; GtkTreeIter child; GtkCellRenderer *cell; GList *list; GtkTreeViewColumn *column; gint max_height; gint i; TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL); temp = tree->root; while (temp->left != tree->nil) temp = temp->left; do { max_height = 0; /* Do stuff with node */ for (list = tree_view->priv->columns, i = 0; i < tree_view->priv->n_columns; list = list->next, i++) { gint height = 0, width = 0; column = list->data; if (!column->visible) continue; gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter); cell = column->cell; gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), NULL, NULL, NULL, &width, &height); max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height); /* FIXME: I'm getting the width of all nodes here. )-: */ if (column->dirty == FALSE) continue; if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED) { continue; } if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS (tree_view)) gtk_tree_view_column_set_width (column, MAX (column->width, depth * tree_view->priv->tab_offset + width)); else gtk_tree_view_column_set_width (column, MAX (column->width, width)); } _gtk_rbtree_node_set_height (tree, temp, max_height); if (temp->children != NULL && gtk_tree_model_iter_children (tree_view->priv->model, &child, iter)) gtk_tree_view_calc_size (tree_view, temp->children, &child, depth + 1); temp = _gtk_rbtree_next (tree, temp); } while (gtk_tree_model_iter_next (tree_view->priv->model, iter)); } static gboolean gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view, GtkTreeIter *iter, gint depth, gint *height) { GtkCellRenderer *cell; GtkTreeViewColumn *column; GList *list; gint i; gint retval = FALSE; gint tmpheight; if (height) *height = 0; for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++) { gint width; column = list->data; if (column->dirty == TRUE || column->column_type == GTK_TREE_VIEW_COLUMN_FIXED) continue; if (!column->visible) continue; cell = column->cell; gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter); if (height) { gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), NULL, NULL, NULL, &width, &tmpheight); *height = MAX (*height, tmpheight); } else { gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), NULL, NULL, NULL, &width, NULL); } if (i == tree_view->priv->expander_column && TREE_VIEW_DRAW_EXPANDERS (tree_view)) { if (depth * tree_view->priv->tab_offset + width > column->width) { column->dirty = TRUE; retval = TRUE; } } else { if (width > column->width) { column->dirty = TRUE; retval = TRUE; } } } return retval; } static void gtk_tree_view_discover_dirty (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeIter *iter, gint depth) { GtkRBNode *temp = tree->root; GtkTreeViewColumn *column; GList *list; GtkTreeIter child; gboolean is_all_dirty; TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL); while (temp->left != tree->nil) temp = temp->left; do { is_all_dirty = TRUE; for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; if (column->dirty == FALSE) { is_all_dirty = FALSE; break; } } if (is_all_dirty) return; gtk_tree_view_discover_dirty_iter (tree_view, iter, depth, FALSE); if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) && temp->children != NULL) gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1); temp = _gtk_rbtree_next (tree, temp); } while (gtk_tree_model_iter_next (tree_view->priv->model, iter)); } static void gtk_tree_view_check_dirty (GtkTreeView *tree_view) { GtkTreePath *path; gboolean dirty = FALSE; GList *list; GtkTreeViewColumn *column; GtkTreeIter iter; if (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP) && tree_view->priv->model) gtk_tree_view_setup_model (tree_view); for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; if (column->dirty) { dirty = TRUE; if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE) { gint w = 1; if (column->button) w = MAX (w, column->button->requisition.width); gtk_tree_view_column_set_width (column, w); } } } if (dirty == FALSE) return; if (tree_view->priv->model == NULL) return; path = gtk_tree_path_new_root (); if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path)) { gtk_tree_view_calc_size (tree_view, tree_view->priv->tree, &iter, 1); _gtk_tree_view_update_size (tree_view); } gtk_tree_path_free (path); for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; column->dirty = FALSE; } } #if 0 static void gtk_tree_view_create_buttons (GtkTreeView *tree_view) { GtkWidget *alignment; GtkWidget *label; GList *list; GtkTreeViewColumn *column; gint i; GtkWidget *hbox; GtkWidget *arrow; /* FIXME this has to be merged with update_button_contents() in * gtktreeviewcolumn.c */ for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++) { column = list->data; if (column->button != NULL) continue; gtk_tree_view_create_button (tree_view, i); alignment = gtk_alignment_new (column->xalign, 0.5, 0.0, 0.0); hbox = gtk_hbox_new (FALSE, 2); arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN); column->arrow = arrow; column->alignment = alignment; if (column->child) label = column->child; else { label = gtk_label_new (column->title); gtk_widget_show (label); } if (column->xalign <= 0.5) gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0); else gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (hbox), alignment, TRUE, TRUE, 0); gtk_container_add (GTK_CONTAINER (alignment), label); gtk_container_add (GTK_CONTAINER (column->button), hbox); gtk_widget_show (hbox); gtk_widget_show (alignment); /* don't show the arrow yet */ } gtk_tree_view_size_request_buttons (tree_view); if (GTK_WIDGET_REALIZED (tree_view)) gtk_tree_view_realize_buttons (tree_view); if (GTK_WIDGET_MAPPED (tree_view)) gtk_tree_view_map_buttons (tree_view); } #endif /* Make sure the node is visible vertically */ static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node) { gint offset; offset = _gtk_rbtree_node_find_offset (tree, node); /* we reverse the order, b/c in the unusual case of the * node's height being taller then the visible area, we'd rather * have the node flush to the top */ if (offset + GTK_RBNODE_GET_HEIGHT (node) > tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size) gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), offset + GTK_RBNODE_GET_HEIGHT (node) - tree_view->priv->vadjustment->page_size); if (offset < tree_view->priv->vadjustment->value) gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), offset); } /* This function could be more efficient. * I'll optimize it if profiling seems to imply that * it's important */ GtkTreePath * _gtk_tree_view_find_path (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node) { GtkTreePath *path; GtkRBTree *tmp_tree; GtkRBNode *tmp_node, *last; gint count; path = gtk_tree_path_new (); g_return_val_if_fail (node != NULL, path); g_return_val_if_fail (node != tree->nil, path); count = 1 + node->left->count; last = node; tmp_node = node->parent; tmp_tree = tree; while (tmp_tree) { while (tmp_node != tmp_tree->nil) { if (tmp_node->right == last) count += 1 + tmp_node->left->count; last = tmp_node; tmp_node = tmp_node->parent; } gtk_tree_path_prepend_index (path, count - 1); last = tmp_tree->parent_node; tmp_tree = tmp_tree->parent_tree; if (last) { count = 1 + last->left->count; tmp_node = last->parent; } } return path; } /* Returns TRUE if we ran out of tree before finding the node, * so the returned node is the last node we saw and the returned * tree is NULL */ gboolean _gtk_tree_view_find_node (GtkTreeView *tree_view, GtkTreePath *path, GtkRBTree **tree, GtkRBNode **node) { GtkRBNode *tmpnode = NULL; GtkRBTree *tmptree = tree_view->priv->tree; gint *indices = gtk_tree_path_get_indices (path); gint depth = gtk_tree_path_get_depth (path); gint i = 0; *node = NULL; *tree = NULL; do { if (tmptree == NULL) { *node = tmpnode; *tree = tmptree; return TRUE; } tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1); ++i; if (i >= depth) { *node = tmpnode; *tree = tmptree; return FALSE; } tmptree = tmpnode->children; } while (1); } static void gtk_tree_view_unref_tree_helper (GtkTreeModel *model, GtkTreeIter *iter, GtkRBTree *tree, GtkRBNode *node) { do { g_return_if_fail (node != NULL); if (node->children) { GtkTreeIter child; GtkRBTree *new_tree; GtkRBNode *new_node; new_tree = node->children; new_node = new_tree->root; while (new_node && new_node->left != new_tree->nil) new_node = new_node->left; g_return_if_fail (gtk_tree_model_iter_children (model, &child, iter)); gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node); } gtk_tree_model_unref_node (model, iter); node = _gtk_rbtree_next (tree, node); } while (gtk_tree_model_iter_next (model, iter)); } static void gtk_tree_view_unref_tree (GtkTreeView *tree_view, GtkRBTree *tree) { GtkTreeIter iter; GtkTreePath *path; GtkRBNode *node; node = tree->root; while (node && node->left != tree->nil) node = node->left; g_return_if_fail (node != NULL); path = _gtk_tree_view_find_path (tree_view, tree, node); gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model), &iter, path); gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node); gtk_tree_path_free (path); } static void gtk_tree_view_queue_draw_node (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, GdkRectangle *clip_rect) { GdkRectangle rect; if (!GTK_WIDGET_REALIZED (tree_view)) return; rect.x = 0; rect.width = tree_view->priv->width; rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node); rect.height = BACKGROUND_HEIGHT (node); if (clip_rect) { GdkRectangle new_rect; gdk_rectangle_intersect (clip_rect, &rect, &new_rect); gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE); } else { gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE); } } static void gtk_tree_view_queue_draw_path (GtkTreeView *tree_view, GtkTreePath *path, GdkRectangle *clip_rect) { GtkRBTree *tree = NULL; GtkRBNode *node = NULL; _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (tree) gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect); } /* x and y are the mouse position */ static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view, GtkRBTree *tree, GtkRBNode *node, gint x, gint y) { GdkRectangle area; GtkStateType state; GtkWidget *widget; gint x_offset = 0; if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT)) return; widget = GTK_WIDGET (tree_view); gtk_tree_view_get_arrow_xrange (tree_view, &x_offset, NULL); area.x = x_offset; area.y = CELL_FIRST_PIXEL (tree_view, tree, node); area.width = tree_view->priv->tab_offset - 2; area.height = CELL_HEIGHT (node); if (node == tree_view->priv->button_pressed_node) { if (x >= area.x && x <= (area.x + area.width) && y >= area.y && y <= (area.y + area.height)) state = GTK_STATE_ACTIVE; else state = GTK_STATE_NORMAL; } else { if (node == tree_view->priv->prelight_node && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)) state = GTK_STATE_PRELIGHT; else state = GTK_STATE_NORMAL; } /* FIXME expander size should come from a style property */ #define EXPANDER_SIZE 8 gtk_paint_expander (widget->style, tree_view->priv->bin_window, state, &area, widget, "treeview", area.x, (area.y + (area.height - EXPANDER_SIZE) / 2 - (area.height + 1) % 2), node->children != NULL); #undef EXPANDER_SIZE } static void _gtk_tree_view_update_col_width (GtkTreeView *tree_view) { GList *list, *last_column; GtkTreeViewColumn *column; gint width = 0; for (last_column = g_list_last (tree_view->priv->columns); last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) && GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button); last_column = last_column->prev) ; if (last_column == NULL) return; for (list = tree_view->priv->columns; list != last_column; list = list->next) { column = GTK_TREE_VIEW_COLUMN (list->data); if (! column->visible) continue; width += column->width; column->displayed_width = (CLAMP (column->width, (column->min_width!=-1)?column->min_width:column->width, (column->max_width!=-1)?column->max_width:column->width)); } column = GTK_TREE_VIEW_COLUMN (last_column->data); column->displayed_width = MAX (GTK_WIDGET (tree_view)->allocation.width, tree_view->priv->width) - width; } void _gtk_tree_view_update_size (GtkTreeView *tree_view) { gint width, height; GList *list; GtkTreeViewColumn *column; gint i; if (tree_view->priv->model == NULL) { tree_view->priv->width = 0; tree_view->priv->height = 0; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); return; } width = 0; for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++) { column = list->data; if (!column->visible) continue; width += TREE_VIEW_COLUMN_WIDTH (column); } if (tree_view->priv->tree == NULL) height = 0; else height = tree_view->priv->tree->root->offset + TREE_VIEW_VERTICAL_SEPARATOR; if (tree_view->priv->width != width) { tree_view->priv->width = width; tree_view->priv->hadjustment->upper = width; gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed"); } if (tree_view->priv->height != height) { tree_view->priv->height = height; tree_view->priv->vadjustment->upper = tree_view->priv->height; gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed"); } if (GTK_WIDGET_REALIZED (tree_view)) { gdk_window_resize (tree_view->priv->bin_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), height + TREE_VIEW_HEADER_HEIGHT (tree_view)); gdk_window_resize (tree_view->priv->header_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), tree_view->priv->header_height); _gtk_tree_view_update_col_width (tree_view); } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /* this function returns the new width of the column being resized given * the column and x position of the cursor; the x cursor position is passed * in as a pointer and automagicly corrected if it's beyond min/max limits */ static gint gtk_tree_view_new_column_width (GtkTreeView *tree_view, gint i, gint *x) { GtkTreeViewColumn *column; gint width; /* first translate the x position from widget->window * to clist->clist_window */ column = g_list_nth (tree_view->priv->columns, i)->data; width = *x - column->button->allocation.x; /* Clamp down the value */ if (column->min_width == -1) width = MAX (column->button->requisition.width, width); else width = MAX (column->min_width, width); if (column->max_width != -1) width = MIN (width, column->max_width != -1); *x = column->button->allocation.x + width; return width; } /* Callbacks */ static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment, GtkTreeView *tree_view) { if (GTK_WIDGET_REALIZED (tree_view)) { gdk_window_move (tree_view->priv->bin_window, - tree_view->priv->hadjustment->value, - tree_view->priv->vadjustment->value); gdk_window_move (tree_view->priv->header_window, - tree_view->priv->hadjustment->value, 0); gdk_window_process_updates (tree_view->priv->bin_window, TRUE); gdk_window_process_updates (tree_view->priv->header_window, TRUE); } } /* Public methods */ /** * gtk_tree_view_new: * * Creates a new #GtkTreeView widget. * * Return value: A newly created #GtkTreeView widget. **/ GtkWidget * gtk_tree_view_new (void) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ())); return GTK_WIDGET (tree_view); } /** * gtk_tree_view_new_with_model: * @model: the model. * * Creates a new #GtkTreeView widget with the model initialized to @model. * * Return value: A newly created #GtkTreeView widget. **/ GtkWidget * gtk_tree_view_new_with_model (GtkTreeModel *model) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ())); gtk_tree_view_set_model (tree_view, model); return GTK_WIDGET (tree_view); } /** * gtk_tree_view_get_model: * @tree_view: a #GtkTreeView * * Returns the model the the #GtkTreeView is based on. Returns NULL if the * model is unset. * * Return value: A #GtkTreeModel, or NULL if none is currently being used. **/ GtkTreeModel * gtk_tree_view_get_model (GtkTreeView *tree_view) { g_return_val_if_fail (tree_view != NULL, NULL); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return tree_view->priv->model; } static void gtk_tree_view_setup_model (GtkTreeView *tree_view) { GtkTreePath *path; GtkTreeIter iter; tree_view->priv->tree = NULL; g_signal_connectc (tree_view->priv->model, "changed", gtk_tree_view_changed, tree_view, FALSE); g_signal_connectc (tree_view->priv->model, "inserted", gtk_tree_view_inserted, tree_view, FALSE); g_signal_connectc (tree_view->priv->model, "has_child_toggled", gtk_tree_view_has_child_toggled, tree_view, FALSE); g_signal_connectc (tree_view->priv->model, "deleted", gtk_tree_view_deleted, tree_view, FALSE); if (tree_view->priv->columns == NULL) return; path = gtk_tree_path_new_root (); if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path)) { tree_view->priv->tree = _gtk_rbtree_new (); gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE, GTK_WIDGET_REALIZED (tree_view)); } gtk_tree_path_free (path); // gtk_tree_view_create_buttons (tree_view); GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP); } /** * gtk_tree_view_set_model: * @tree_view: A #GtkTreeNode. * @model: The model. * * Sets the model for a #GtkTreeView. If the @tree_view already has a model * set, it will remove it before setting the new model. If @model is NULL, then * it will unset the old model. **/ void gtk_tree_view_set_model (GtkTreeView *tree_view, GtkTreeModel *model) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (model != NULL) g_object_ref (model); if (tree_view->priv->model != NULL) { if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP)) { g_signal_handlers_disconnect_matched (G_OBJECT (tree_view->priv->model), G_SIGNAL_MATCH_FUNC, 0, 0, NULL, gtk_tree_view_changed, NULL); g_signal_handlers_disconnect_matched (G_OBJECT (tree_view->priv->model), G_SIGNAL_MATCH_FUNC, 0, 0, NULL, gtk_tree_view_inserted, NULL); g_signal_handlers_disconnect_matched (G_OBJECT (tree_view->priv->model), G_SIGNAL_MATCH_FUNC, 0, 0, NULL, gtk_tree_view_has_child_toggled, NULL); g_signal_handlers_disconnect_matched (G_OBJECT (tree_view->priv->model), G_SIGNAL_MATCH_FUNC, 0, 0, NULL, gtk_tree_view_deleted, NULL); _gtk_rbtree_free (tree_view->priv->tree); } if (tree_view->priv->drag_dest_row) gtk_tree_row_reference_free (tree_view->priv->drag_dest_row); GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP); g_object_unref (tree_view->priv->model); } tree_view->priv->model = model; if (model == NULL) { tree_view->priv->tree = NULL; if (GTK_WIDGET_REALIZED (tree_view)) _gtk_tree_view_update_size (tree_view); return; } else if (GTK_WIDGET_REALIZED (tree_view)) { gtk_tree_view_setup_model (tree_view); _gtk_tree_view_update_size (tree_view); } g_object_notify (G_OBJECT (tree_view), "model"); } /** * gtk_tree_view_get_selection: * @tree_view: A #GtkTreeView. * * Gets the #GtkTreeSelection associated with @tree_view. * * Return value: A #GtkTreeSelection object. **/ GtkTreeSelection * gtk_tree_view_get_selection (GtkTreeView *tree_view) { g_return_val_if_fail (tree_view != NULL, NULL); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); if (tree_view->priv->selection == NULL) tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view); return tree_view->priv->selection; } /** * gtk_tree_view_get_hadjustment: * @tree_view: A #GtkTreeView * * Gets the #GtkAdjustment currently being used for the horizontal aspect. * * Return value: A #GtkAdjustment object, or NULL if none is currently being * used. **/ GtkAdjustment * gtk_tree_view_get_hadjustment (GtkTreeView *tree_view) { g_return_val_if_fail (tree_view != NULL, NULL); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); if (tree_view->priv->hadjustment == NULL) gtk_tree_view_set_hadjustment (tree_view, NULL); return tree_view->priv->hadjustment; } /** * gtk_tree_view_set_hadjustment: * @tree_view: A #GtkTreeView * @adjustment: The #GtkAdjustment to set, or NULL * * Sets the #GtkAdjustment for the current horizontal aspect. **/ void gtk_tree_view_set_hadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); gtk_tree_view_set_adjustments (tree_view, adjustment, tree_view->priv->vadjustment); g_object_notify (G_OBJECT (tree_view), "hadjustment"); } /** * gtk_tree_view_get_vadjustment: * @tree_view: A #GtkTreeView * * Gets the #GtkAdjustment currently being used for the vertical aspect. * * Return value: A #GtkAdjustment object, or NULL if none is currently being * used. **/ GtkAdjustment * gtk_tree_view_get_vadjustment (GtkTreeView *tree_view) { g_return_val_if_fail (tree_view != NULL, NULL); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); if (tree_view->priv->vadjustment == NULL) gtk_tree_view_set_vadjustment (tree_view, NULL); return tree_view->priv->vadjustment; } /** * gtk_tree_view_set_vadjustment: * @tree_view: A #GtkTreeView * @adjustment: The #GtkAdjustment to set, or NULL * * Sets the #GtkAdjustment for the current vertical aspect. **/ void gtk_tree_view_set_vadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); gtk_tree_view_set_adjustments (tree_view, tree_view->priv->hadjustment, adjustment); g_object_notify (G_OBJECT (tree_view), "vadjustment"); } /** * gtk_tree_view_set_adjustments: * @tree_view: A #GtkTreeView * @hadj: The horizontal #GtkAdjustment to set, or NULL * @vadj: The vertical #GtkAdjustment to set, or NULL * * Sets the horizonal and or vertical #GtkAdjustment. **/ static void gtk_tree_view_set_adjustments (GtkTreeView *tree_view, GtkAdjustment *hadj, GtkAdjustment *vadj) { gboolean need_adjust = FALSE; g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (hadj) g_return_if_fail (GTK_IS_ADJUSTMENT (hadj)); else hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); if (vadj) g_return_if_fail (GTK_IS_ADJUSTMENT (vadj)); else vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj)) { gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->hadjustment), tree_view); gtk_object_unref (GTK_OBJECT (tree_view->priv->hadjustment)); } if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj)) { gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->vadjustment), tree_view); gtk_object_unref (GTK_OBJECT (tree_view->priv->vadjustment)); } if (tree_view->priv->hadjustment != hadj) { tree_view->priv->hadjustment = hadj; gtk_object_ref (GTK_OBJECT (tree_view->priv->hadjustment)); gtk_object_sink (GTK_OBJECT (tree_view->priv->hadjustment)); gtk_signal_connect (GTK_OBJECT (tree_view->priv->hadjustment), "value_changed", (GtkSignalFunc) gtk_tree_view_adjustment_changed, tree_view); need_adjust = TRUE; } if (tree_view->priv->vadjustment != vadj) { tree_view->priv->vadjustment = vadj; gtk_object_ref (GTK_OBJECT (tree_view->priv->vadjustment)); gtk_object_sink (GTK_OBJECT (tree_view->priv->vadjustment)); gtk_signal_connect (GTK_OBJECT (tree_view->priv->vadjustment), "value_changed", (GtkSignalFunc) gtk_tree_view_adjustment_changed, tree_view); need_adjust = TRUE; } if (need_adjust) gtk_tree_view_adjustment_changed (NULL, tree_view); } /* Column and header operations */ /** * gtk_tree_view_get_headers_visible: * @tree_view: A #GtkTreeView. * * Returns TRUE if the headers on the @tree_view are visible. * * Return value: Whether the headers are visible or not. **/ gboolean gtk_tree_view_get_headers_visible (GtkTreeView *tree_view) { g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE); } /** * gtk_tree_view_set_headers_visible: * @tree_view: A #GtkTreeView. * @headers_visible: TRUE if the headers are visible * * Sets the the visibility state of the headers. **/ void gtk_tree_view_set_headers_visible (GtkTreeView *tree_view, gboolean headers_visible) { gint x, y; GList *list; GtkTreeViewColumn *column; g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); headers_visible = !! headers_visible; if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible) return; if (headers_visible) GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE); else GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE); if (GTK_WIDGET_REALIZED (tree_view)) { gdk_window_get_position (tree_view->priv->bin_window, &x, &y); if (headers_visible) { gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view)); if (GTK_WIDGET_MAPPED (tree_view)) gtk_tree_view_map_buttons (tree_view); } else { gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height); for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; gtk_widget_unmap (column->button); } gdk_window_hide (tree_view->priv->header_window); } } tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view); tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2; tree_view->priv->vadjustment->lower = 0; tree_view->priv->vadjustment->upper = tree_view->priv->height; gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed"); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); g_object_notify (G_OBJECT (tree_view), "headers_visible"); } /** * gtk_tree_view_columns_autosize: * @tree_view: A #GtkTreeView. * * Resizes all columns to their optimal width. **/ void gtk_tree_view_columns_autosize (GtkTreeView *tree_view) { gboolean dirty = FALSE; GList *list; GtkTreeViewColumn *column; g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); for (list = tree_view->priv->columns; list; list = list->next) { column = list->data; if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE) continue; column->dirty = TRUE; dirty = TRUE; } if (dirty) gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /** * gtk_tree_view_set_headers_clickable: * @tree_view: A #GtkTreeView. * @setting: TRUE if the columns are clickable. * * Allow the column title buttons to be clicked. **/ void gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view, gboolean setting) { GList *list; g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (tree_view->priv->model != NULL); for (list = tree_view->priv->columns; list; list = list->next) gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting); g_object_notify (G_OBJECT (tree_view), "headers_clickable"); } /** * gtk_tree_view_append_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to add. * * Appends @column to the list of columns. * * Return value: The number of columns in @tree_view after appending. **/ gint gtk_tree_view_append_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { g_return_val_if_fail (tree_view != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (column != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (column->tree_view == NULL, -1); return gtk_tree_view_insert_column (tree_view, column, -1); } /** * gtk_tree_view_remove_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to remove. * * Removes @column from @tree_view. * * Return value: The number of columns in @tree_view after removing. **/ gint gtk_tree_view_remove_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { g_return_val_if_fail (tree_view != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (column != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1); _gtk_tree_view_column_unset_tree_view (column); if (tree_view->priv->focus_column && GTK_TREE_VIEW_COLUMN (tree_view->priv->focus_column->data) == column) tree_view->priv->focus_column = NULL; tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column); g_object_unref (G_OBJECT (column)); tree_view->priv->n_columns--; if (GTK_WIDGET_REALIZED (tree_view)) { GList *list; for (list = tree_view->priv->columns; list; list = list->next) { column = GTK_TREE_VIEW_COLUMN (list->data); if (column->visible) column->dirty = TRUE; } if (tree_view->priv->n_columns == 0 && gtk_tree_view_get_headers_visible (tree_view)) gdk_window_hide (tree_view->priv->header_window); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } return tree_view->priv->n_columns; } /** * gtk_tree_view_insert_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to be inserted. * @position: The position to insert @column in. * * This inserts the @column into the @tree_view at @position. If @position is * -1, then the column is inserted at the end. * * Return value: The number of columns in @tree_view after insertion. **/ gint gtk_tree_view_insert_column (GtkTreeView *tree_view, GtkTreeViewColumn *column, gint position) { g_return_val_if_fail (tree_view != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (column != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (column->tree_view == NULL, -1); g_object_ref (G_OBJECT (column)); if (tree_view->priv->n_columns == 0 && GTK_WIDGET_REALIZED (tree_view) && gtk_tree_view_get_headers_visible (tree_view)) { gdk_window_show (tree_view->priv->header_window); } tree_view->priv->columns = g_list_insert (tree_view->priv->columns, column, position); _gtk_tree_view_column_set_tree_view (column, tree_view); _gtk_tree_view_column_create_button (column); tree_view->priv->n_columns++; if (GTK_WIDGET_REALIZED (tree_view)) { GList *list; for (list = tree_view->priv->columns; list; list = list->next) { column = GTK_TREE_VIEW_COLUMN (list->data); if (column->visible) column->dirty = TRUE; } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } return tree_view->priv->n_columns; } /** * gtk_tree_view_insert_column_with_attributes: * @tree_view: A #GtkTreeView * @position: The position to insert the new column in. * @title: The title to set the header to. * @cell: The #GtkCellRenderer. * @Varargs: A NULL terminated list of attributes. * * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at * @position. If @position is -1, then the newly created column is inserted at * the end. The column is initialized with the attributes given. * * Return value: The number of columns in @tree_view after insertion. **/ gint gtk_tree_view_insert_column_with_attributes (GtkTreeView *tree_view, gint position, gchar *title, GtkCellRenderer *cell, ...) { GtkTreeViewColumn *column; gchar *attribute; va_list args; gint column_id; g_return_val_if_fail (tree_view != NULL, -1); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); column = gtk_tree_view_column_new (); gtk_tree_view_column_set_title (column, title); gtk_tree_view_column_set_cell_renderer (column, cell); va_start (args, cell); attribute = va_arg (args, gchar *); while (attribute != NULL) { column_id = va_arg (args, gint); gtk_tree_view_column_add_attribute (column, attribute, column_id); attribute = va_arg (args, gchar *); } va_end (args); gtk_tree_view_insert_column (tree_view, column, position); g_object_unref (column); return tree_view->priv->n_columns; } /** * gtk_tree_view_get_column: * @tree_view: A #GtkTreeView. * @n: The position of the column, counting from 0. * * Gets the #GtkTreeViewColumn at the given position in the #tree_view. * * Return value: The #GtkTreeViewColumn, or NULL if the position is outside the * range of columns. **/ GtkTreeViewColumn * gtk_tree_view_get_column (GtkTreeView *tree_view, gint n) { g_return_val_if_fail (tree_view != NULL, NULL); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); g_return_val_if_fail (tree_view->priv->model != NULL, NULL); if (n < 0 || n >= tree_view->priv->n_columns) return NULL; if (tree_view->priv->columns == NULL) return NULL; return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data); } void gtk_tree_view_set_expander_column (GtkTreeView *tree_view, gint col) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tree_view->priv->expander_column != col) { tree_view->priv->expander_column = col; g_object_notify (G_OBJECT (tree_view), "expander_column"); } } gint gtk_tree_view_get_expander_column (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); return tree_view->priv->expander_column; } /** * gtk_tree_view_scroll_to_point: * @tree_view: a #GtkTreeView * @tree_x: X coordinate of new top-left pixel of visible area * @tree_y: Y coordinate of new top-left pixel of visible area * * Scrolls the tree view such that the top-left corner of the visible * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified * in tree window coordinates. The @tree_view must be realized before * this function is called. If it isn't, you probably want ot be * using gtk_tree_view_scroll_to_cell. **/ void gtk_tree_view_scroll_to_point (GtkTreeView *tree_view, gint tree_x, gint tree_y) { GtkAdjustment *hadj; GtkAdjustment *vadj; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (GTK_WIDGET_REALIZED (tree_view)); hadj = tree_view->priv->hadjustment; vadj = tree_view->priv->vadjustment; gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper)); gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper)); } /** * gtk_tree_view_scroll_to_cell * @tree_view: A #GtkTreeView. * @path: The path of the row to move to. * @column: The #GtkTreeViewColumn to move horizontally to. * @row_align: The vertical alignment of the row specified by @path. * @col_align: The horizontal alignment of the column specified by @column. * * Moves the alignments of @tree_view to the position specified by * @column and @path. If @column is NULL, then no horizontal * scrolling occurs. Likewise, if @path is NULL no vertical scrolling * occurs. @row_align determines where the row is placed, and * @col_align determines where @column is placed. Both are expected * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means * right/bottom alignment, 0.5 means center. **/ void gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, gfloat row_align, gfloat col_align) { GdkRectangle cell_rect; GdkRectangle vis_rect; gint dest_x, dest_y; /* FIXME work on unmapped/unrealized trees? maybe implement when * we do incremental reflow for trees */ g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (row_align >= 0.0); g_return_if_fail (row_align <= 1.0); g_return_if_fail (col_align >= 0.0); g_return_if_fail (col_align <= 1.0); g_return_if_fail (path != NULL || column != NULL); row_align = CLAMP (row_align, 0.0, 1.0); col_align = CLAMP (col_align, 0.0, 1.0); if (! GTK_WIDGET_REALIZED (tree_view)) { if (path) tree_view->priv->scroll_to_path = gtk_tree_path_copy (path); if (column) tree_view->priv->scroll_to_column = column; tree_view->priv->scroll_to_row_align = row_align; tree_view->priv->scroll_to_col_align = col_align; return; } gtk_tree_view_get_cell_area (tree_view, path, column, &cell_rect); gtk_tree_view_get_visible_rect (tree_view, &vis_rect); dest_x = vis_rect.x; dest_y = vis_rect.y; if (path) { dest_x = cell_rect.x + cell_rect.width * row_align - vis_rect.width * row_align; } if (column) { dest_y = cell_rect.y + cell_rect.height * col_align - vis_rect.height * col_align; } gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y); } /** * gtk_tree_view_get_path_at_pos: * @tree_view: A #GtkTreeView. * @window: The #GdkWindow to check against. * @x: The x position to be identified. * @y: The y position to be identified. * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL * * Finds the path at the point (@x, @y) relative to @window. If * @window is NULL, then the point is found relative to the widget * coordinates. This function is expected to be called after an * event, with event->window being passed in as @window. It is * primarily for things like popup menus. If @path is non-NULL, then * it will be filled with the #GtkTreePath at that point. This path * should be freed with #gtk_tree_path_free. If @column is non-NULL, * then it will be filled with the column at that point. @cell_x and * @cell_y return the coordinates relative to the cell background * (i.e. the background_area passed to gtk_cell_renderer_render()). * * Return value: TRUE if a row exists at that coordinate. **/ gboolean gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view, GdkWindow *window, gint x, gint y, GtkTreePath **path, GtkTreeViewColumn **column, gint *cell_x, gint *cell_y) { GtkRBTree *tree; GtkRBNode *node; gint y_offset; g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE); g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE); if (window) g_return_val_if_fail (window == tree_view->priv->bin_window, FALSE); if (path) *path = NULL; if (column) *column = NULL; if (x > tree_view->priv->hadjustment->upper) return FALSE; if (x < 0 || y < 0) return FALSE; if (column || cell_x) { GtkTreeViewColumn *tmp_column; GtkTreeViewColumn *last_column = NULL; GList *list; gint remaining_x = x; gboolean found = FALSE; for (list = tree_view->priv->columns; list; list = list->next) { tmp_column = list->data; if (tmp_column->visible == FALSE) continue; last_column = tmp_column; if (remaining_x <= tmp_column->width) { found = TRUE; if (column) *column = tmp_column; if (cell_x) *cell_x = remaining_x; break; } remaining_x -= tmp_column->width; } if (!found) { if (column) *column = last_column; if (cell_x) *cell_x = last_column->width + remaining_x; } } if (window) { y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y), &tree, &node); } else { if (y < TREE_VIEW_HEADER_HEIGHT (tree_view)) return FALSE; y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y + tree_view->priv->vadjustment->value), &tree, &node); } if (tree == NULL) return FALSE; if (cell_y) *cell_y = y_offset; if (path) *path = _gtk_tree_view_find_path (tree_view, tree, node); return TRUE; } static void gtk_tree_view_get_background_xrange (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeViewColumn *column, gint *x1, gint *x2) { GtkTreeViewColumn *tmp_column = NULL; gint total_width; GList *list; if (x1) *x1 = 0; if (x2) *x2 = 0; total_width = 0; for (list = tree_view->priv->columns; list; list = list->next) { tmp_column = list->data; if (tmp_column == column) break; if (tmp_column->visible) total_width += tmp_column->width; } if (tmp_column != column) { g_warning (G_STRLOC": passed-in column isn't in the tree"); return; } if (x1) *x1 = total_width; if (x2) { if (column->visible) *x2 = total_width + column->width; else *x2 = total_width; /* width of 0 */ } } static void gtk_tree_view_get_cell_xrange (GtkTreeView *tree_view, GtkRBTree *tree, GtkTreeViewColumn *column, gint *x1, gint *x2) { GtkTreeViewColumn *tmp_column = NULL; gint total_width; GList *list; gint i; if (x1) *x1 = 0; if (x2) *x2 = 0; i = 0; total_width = 0; for (list = tree_view->priv->columns; list; list = list->next) { tmp_column = list->data; if (tmp_column == column) break; if (tmp_column->visible) total_width += tmp_column->width; ++i; } if (tmp_column != column) { g_warning (G_STRLOC": passed-in column isn't in the tree"); return; } /* Remember we're getting the cell range, i.e. the cell_area passed * to the cell renderer. */ if (i == tree_view->priv->expander_column) total_width += tree_view->priv->tab_offset * _gtk_rbtree_get_depth (tree); if (x1) *x1 = total_width; if (x2) { if (column->visible) *x2 = total_width + column->displayed_width; else *x2 = total_width; /* width of 0 */ } } static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view, gint *x1, gint *x2) { gint x_offset = 0; GList *list; GtkTreeViewColumn *tmp_column = NULL; gint total_width; gint i; i = 0; total_width = 0; for (list = tree_view->priv->columns; list; list = list->next) { tmp_column = list->data; if (i == tree_view->priv->expander_column) { x_offset = total_width; break; } if (tmp_column->visible) total_width += tmp_column->width; ++i; } if (x1) *x1 = x_offset; if (tmp_column && tmp_column->visible) { /* +1 because x2 isn't included in the range. */ if (x2) *x2 = x_offset + tree_view->priv->tab_offset + 1; } else { /* return an empty range, the expander column is hidden */ if (x2) *x2 = x_offset; } } /** * gtk_tree_view_get_cell_area: * @tree_view: a #GtkTreeView * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes * @rect: rectangle to fill with cell rect * * Fills the bounding rectangle in tree window coordinates for the * cell at the row specified by @path and the column specified by * @column. If @path is %NULL, the y and height fields of the * rectangle will be filled with 0. If @column is %NULL, the x and * width fields will be filled with 0. The sum of all cell rects does * not cover the entire tree; there are extra pixels in between rows, * for example. The returned rectangle is equivalent to the @cell_area * passed to gtk_cell_renderer_render(). * **/ void gtk_tree_view_get_cell_area (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, GdkRectangle *rect) { GtkRBTree *tree = NULL; GtkRBNode *node = NULL; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (rect != NULL); rect->x = 0; rect->y = 0; rect->width = 0; rect->height = 0; if (path) { /* Get vertical coords */ _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (tree == NULL) { g_warning (G_STRLOC": no row corresponding to path"); return; } /* Remember that the rbtree stores node height including the vertical * separator, see comment at top of file. */ rect->y = CELL_FIRST_PIXEL (tree_view, tree, node); rect->height = CELL_HEIGHT (node); } if (column) { gint x2 = 0; gtk_tree_view_get_cell_xrange (tree_view, tree, column, &rect->x, &x2); rect->width = x2 - rect->x; } } /** * gtk_tree_view_get_background_area: * @tree_view: a #GtkTreeView * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes * @rect: rectangle to fill with cell background rect * * Fills the bounding rectangle in tree window coordinates for the * cell at the row specified by @path and the column specified by * @column. If @path is %NULL, the y and height fields of the * rectangle will be filled with 0. If @column is %NULL, the x and * width fields will be filled with 0. The returned rectangle is * equivalent to the @background_area passed to * gtk_cell_renderer_render(). These background areas tile to cover * the entire tree window (except for the area used for header * buttons). Contrast with the cell_area, returned by * gtk_tree_view_get_cell_area(), which returns only the cell itself, * excluding surrounding borders and the tree expander area. * **/ void gtk_tree_view_get_background_area (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, GdkRectangle *rect) { GtkRBTree *tree = NULL; GtkRBNode *node = NULL; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (rect != NULL); rect->x = 0; rect->y = 0; rect->width = 0; rect->height = 0; if (path) { /* Get vertical coords */ _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (tree == NULL) { g_warning (G_STRLOC": no row corresponding to path"); return; } rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node); rect->height = BACKGROUND_HEIGHT (node); } if (column) { gint x2 = 0; gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2); rect->width = x2 - rect->x; } } static void gtk_tree_view_expand_all_helper (GtkRBTree *tree, GtkRBNode *node, gpointer data) { GtkTreeView *tree_view = data; if (node->children) _gtk_rbtree_traverse (node->children, node->children->root, G_PRE_ORDER, gtk_tree_view_expand_all_helper, data); else if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT && node->children == NULL) { GtkTreePath *path; GtkTreeIter iter; GtkTreeIter child; node->children = _gtk_rbtree_new (); node->children->parent_tree = tree; node->children->parent_node = node; path = _gtk_tree_view_find_path (tree_view, tree, node); gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter); gtk_tree_view_build_tree (tree_view, node->children, &child, gtk_tree_path_get_depth (path) + 1, TRUE, GTK_WIDGET_REALIZED (tree_view)); gtk_tree_path_free (path); } } /** * gtk_tree_view_expand_all: * @tree_view: A #GtkTreeView. * * Recursively expands all nodes in the @tree_view. **/ void gtk_tree_view_expand_all (GtkTreeView *tree_view) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (tree_view->priv->tree != NULL); _gtk_rbtree_traverse (tree_view->priv->tree, tree_view->priv->tree->root, G_PRE_ORDER, gtk_tree_view_expand_all_helper, tree_view); _gtk_tree_view_update_size (tree_view); } static void gtk_tree_view_collapse_all_helper (GtkRBTree *tree, GtkRBNode *node, gpointer data) { if (node->children) { GtkTreePath *path; GtkTreeIter iter; path = _gtk_tree_view_find_path (GTK_TREE_VIEW (data), node->children, node->children->root); gtk_tree_model_get_iter (GTK_TREE_VIEW (data)->priv->model, &iter, path); gtk_tree_view_discover_dirty (GTK_TREE_VIEW (data), node->children, &iter, gtk_tree_path_get_depth (path)); /* Ensure we don't have a dangling pointer to a dead node */ ensure_unprelighted (GTK_TREE_VIEW (data)); _gtk_rbtree_remove (node->children); gtk_tree_path_free (path); } } /** * gtk_tree_view_collapse_all: * @tree_view: A #GtkTreeView. * * Recursively collapses all visible, expanded nodes in @tree_view. **/ void gtk_tree_view_collapse_all (GtkTreeView *tree_view) { g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (tree_view->priv->tree != NULL); _gtk_rbtree_traverse (tree_view->priv->tree, tree_view->priv->tree->root, G_PRE_ORDER, gtk_tree_view_collapse_all_helper, tree_view); if (GTK_WIDGET_MAPPED (tree_view)) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } /* FIXME the bool return values for expand_row and collapse_row are * not analagous; they should be TRUE if the row had children and * was not already in the requested state. */ /** * gtk_tree_view_expand_row: * @tree_view: a #GtkTreeView * @path: path to a row * @open_all: whether to recursively expand, or just expand immediate children * * Opens the row so its children are visible * * Return value: %TRUE if the row existed and had children **/ gboolean gtk_tree_view_expand_row (GtkTreeView *tree_view, GtkTreePath *path, gboolean open_all) { GtkTreeIter iter; GtkTreeIter child; GtkRBTree *tree; GtkRBNode *node; g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (tree_view->priv->model != NULL, FALSE); g_return_val_if_fail (path != NULL, FALSE); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return FALSE; if (node->children) return TRUE; gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter)) return FALSE; node->children = _gtk_rbtree_new (); node->children->parent_tree = tree; node->children->parent_node = node; gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter); gtk_tree_view_build_tree (tree_view, node->children, &child, gtk_tree_path_get_depth (path) + 1, open_all, GTK_WIDGET_REALIZED (tree_view)); if (GTK_WIDGET_MAPPED (tree_view)) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); return TRUE; } /** * gtk_tree_view_collapse_row: * @tree_view: a #GtkTreeView * @path: path to a row in the @tree_view * * Collapses a row (hides its child rows). * * Return value: %TRUE if the row was expanded **/ gboolean gtk_tree_view_collapse_row (GtkTreeView *tree_view, GtkTreePath *path) { GtkRBTree *tree; GtkRBNode *node; GtkTreeIter iter; g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE); g_return_val_if_fail (path != NULL, FALSE); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return FALSE; if (node->children == NULL) return FALSE; gtk_tree_model_get_iter (tree_view->priv->model, &iter, path); gtk_tree_view_discover_dirty (tree_view, node->children, &iter, gtk_tree_path_get_depth (path)); /* Ensure we don't have a dangling pointer to a dead node */ ensure_unprelighted (tree_view); g_assert (tree_view->priv->prelight_node == NULL); _gtk_rbtree_remove (node->children); if (GTK_WIDGET_MAPPED (tree_view)) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); return TRUE; } /** * gtk_tree_view_get_visible_rect: * @tree_view: a #GtkTreeView * @visible_rect: rectangle to fill * * Fills @visible_rect with the currently-visible region of the * buffer, in tree coordinates. Convert to widget coordinates with * gtk_tree_view_tree_to_widget_coords(). Tree coordinates start at * 0,0 for row 0 of the tree, and cover the entire scrollable area of * the tree. **/ void gtk_tree_view_get_visible_rect (GtkTreeView *tree_view, GdkRectangle *visible_rect) { GtkWidget *widget; g_return_if_fail (tree_view != NULL); g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); widget = GTK_WIDGET (tree_view); if (visible_rect) { visible_rect->x = tree_view->priv->hadjustment->value; visible_rect->y = tree_view->priv->vadjustment->value; visible_rect->width = widget->allocation.width; visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view); } } /** * gtk_tree_view_widget_to_tree_coords: * @tree_view: a #GtkTreeView * @wx: widget X coordinate * @wy: widget Y coordinate * @tx: return location for tree X coordinate * @ty: return location for tree Y coordinate * * Converts widget coordinates to coordinates for the * tree window (the full scrollable area of the tree). * **/ void gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view, gint wx, gint wy, gint *tx, gint *ty) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tx) { *tx = wx + tree_view->priv->hadjustment->value; } if (ty) { *ty = wy + tree_view->priv->vadjustment->value; } } /** * gtk_tree_view_tree_to_widget_coords: * @tree_view: a #GtkTreeView * @tx: tree X coordinate * @ty: tree Y coordinate * @wx: return location for widget X coordinate * @wy: return location for widget Y coordinate * * Converts tree coordinates (coordinates in full scrollable * area of the tree) to widget coordinates. * **/ void gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view, gint tx, gint ty, gint *wx, gint *wy) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (wx) { *wx = tx - tree_view->priv->hadjustment->value; } if (wy) { *wy = ty - tree_view->priv->vadjustment->value; } } /** * gtk_tree_view_set_rules_hint * @tree_view: a #GtkTreeView * @setting: %TRUE if the tree requires reading across rows * * This function tells GTK+ that the user interface for your * application requires users to read across tree rows and associate * cells with one another. By default, GTK+ will then render the tree * with alternating row colors. DO NOT use it * just because you prefer the appearance of the ruled tree; that's a * question for the theme. Some themes will draw tree rows in * alternating colors even when rules are turned off, and users who * prefer that appearance all the time can choose those themes. You * should call this function only as a semantic * hint to the theme engine that your tree makes alternating colors * useful from a functional standpoint (since it has lots of columns, * generally). * **/ void gtk_tree_view_set_rules_hint (GtkTreeView *tree_view, gboolean setting) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); setting = setting != FALSE; if (tree_view->priv->has_rules != setting) { tree_view->priv->has_rules = setting; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } g_object_notify (G_OBJECT (tree_view), "rules_hint"); } /** * gtk_tree_view_get_rules_hint * @tree_view: a #GtkTreeView * * Gets the setting set by gtk_tree_view_set_rules_hint(). * * Return value: %TRUE if rules are useful for the user of this tree **/ gboolean gtk_tree_view_get_rules_hint (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->priv->has_rules; } /* Drag-and-drop */ static void set_source_row (GdkDragContext *context, GtkTreeModel *model, GtkTreePath *source_row) { g_object_set_data_full (G_OBJECT (context), "gtk-tree-view-source-row", source_row ? gtk_tree_row_reference_new (model, source_row) : NULL, (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL)); } static GtkTreePath* get_source_row (GdkDragContext *context) { GtkTreeRowReference *ref = g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row"); if (ref) return gtk_tree_row_reference_get_path (ref); else return NULL; } static void set_dest_row (GdkDragContext *context, GtkTreeModel *model, GtkTreePath *dest_row) { g_object_set_data_full (G_OBJECT (context), "gtk-tree-view-dest-row", dest_row ? gtk_tree_row_reference_new (model, dest_row) : NULL, (GDestroyNotify) (dest_row ? gtk_tree_row_reference_free : NULL)); } static GtkTreePath* get_dest_row (GdkDragContext *context) { GtkTreeRowReference *ref = g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row"); if (ref) return gtk_tree_row_reference_get_path (ref); else return NULL; } /* Get/set whether drag_motion requested the drag data and * drag_data_received should thus not actually insert the data, * since the data doesn't result from a drop. */ static void set_status_pending (GdkDragContext *context, GdkDragAction suggested_action) { g_object_set_data (G_OBJECT (context), "gtk-tree-view-status-pending", GINT_TO_POINTER (suggested_action)); } static GdkDragAction get_status_pending (GdkDragContext *context) { return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context), "gtk-tree-view-status-pending")); } typedef struct _TreeViewDragInfo TreeViewDragInfo; struct _TreeViewDragInfo { GdkModifierType start_button_mask; GtkTargetList *source_target_list; GdkDragAction source_actions; GClosure *row_draggable_closure; GtkTargetList *dest_target_list; GClosure *location_droppable_closure; guint source_set : 1; guint dest_set : 1; }; static TreeViewDragInfo* get_info (GtkTreeView *tree_view) { return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info"); } static void clear_source_info (TreeViewDragInfo *di) { if (di->source_target_list) gtk_target_list_unref (di->source_target_list); if (di->row_draggable_closure) g_closure_unref (di->row_draggable_closure); di->source_target_list = NULL; di->row_draggable_closure = NULL; } static void clear_dest_info (TreeViewDragInfo *di) { if (di->location_droppable_closure) g_closure_unref (di->location_droppable_closure); if (di->dest_target_list) gtk_target_list_unref (di->dest_target_list); di->location_droppable_closure = NULL; di->dest_target_list = NULL; } static void destroy_info (TreeViewDragInfo *di) { clear_source_info (di); clear_dest_info (di); g_free (di); } static TreeViewDragInfo* ensure_info (GtkTreeView *tree_view) { TreeViewDragInfo *di; di = get_info (tree_view); if (di == NULL) { di = g_new0 (TreeViewDragInfo, 1); g_object_set_data_full (G_OBJECT (tree_view), "gtk-tree-view-drag-info", di, (GDestroyNotify) destroy_info); } return di; } static void remove_info (GtkTreeView *tree_view) { g_object_set_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info", NULL); } #define SCROLL_EDGE_SIZE 15 static gint drag_scan_timeout (gpointer data) { GtkTreeView *tree_view; gint x, y; GdkModifierType state; GtkTreePath *path = NULL; GtkTreeViewColumn *column = NULL; GdkRectangle visible_rect; tree_view = GTK_TREE_VIEW (data); gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, &state); gtk_tree_view_get_visible_rect (tree_view, &visible_rect); /* See if we are near the edge. */ if ((x - visible_rect.x) < SCROLL_EDGE_SIZE || (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE || (y - visible_rect.y) < SCROLL_EDGE_SIZE || (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE) { gtk_tree_view_get_path_at_pos (tree_view, tree_view->priv->bin_window, x, y, &path, &column, NULL, NULL); if (path != NULL) { gtk_tree_view_scroll_to_cell (tree_view, path, column, 0.5, 0.5); gtk_tree_path_free (path); } } return TRUE; } static void ensure_scroll_timeout (GtkTreeView *tree_view) { if (tree_view->priv->scroll_timeout == 0) tree_view->priv->scroll_timeout = gtk_timeout_add (50, drag_scan_timeout, tree_view); } static void remove_scroll_timeout (GtkTreeView *tree_view) { if (tree_view->priv->scroll_timeout != 0) { gtk_timeout_remove (tree_view->priv->scroll_timeout); tree_view->priv->scroll_timeout = 0; } } void gtk_tree_view_set_rows_drag_source (GtkTreeView *tree_view, GdkModifierType start_button_mask, const GtkTargetEntry *targets, gint n_targets, GdkDragAction actions, GtkTreeViewDraggableFunc row_draggable_func, gpointer user_data) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = ensure_info (tree_view); clear_source_info (di); di->start_button_mask = start_button_mask; di->source_target_list = gtk_target_list_new (targets, n_targets); di->source_actions = actions; if (row_draggable_func) { di->row_draggable_closure = g_cclosure_new ((GCallback) row_draggable_func, user_data, NULL); g_closure_ref (di->row_draggable_closure); g_closure_sink (di->row_draggable_closure); } di->source_set = TRUE; } void gtk_tree_view_set_rows_drag_dest (GtkTreeView *tree_view, const GtkTargetEntry *targets, gint n_targets, GdkDragAction actions, GtkTreeViewDroppableFunc location_droppable_func, gpointer user_data) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); gtk_drag_dest_set (GTK_WIDGET (tree_view), 0, NULL, 0, actions); di = ensure_info (tree_view); clear_dest_info (di); if (targets) di->dest_target_list = gtk_target_list_new (targets, n_targets); if (location_droppable_func) { di->location_droppable_closure = g_cclosure_new ((GCallback) location_droppable_func, user_data, NULL); g_closure_ref (di->location_droppable_closure); g_closure_sink (di->location_droppable_closure); } di->dest_set = TRUE; } void gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = get_info (tree_view); if (di) { if (di->source_set) { clear_source_info (di); di->source_set = FALSE; } if (!di->dest_set && !di->source_set) remove_info (tree_view); } } void gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = get_info (tree_view); if (di) { if (di->dest_set) { gtk_drag_dest_unset (GTK_WIDGET (tree_view)); clear_dest_info (di); di->dest_set = FALSE; } if (!di->dest_set && !di->source_set) remove_info (tree_view); } } void gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewDropPosition pos) { GtkTreePath *current_dest; /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); current_dest = NULL; if (tree_view->priv->drag_dest_row) current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row); if (current_dest) { gtk_tree_view_queue_draw_path (tree_view, current_dest, NULL); gtk_tree_path_free (current_dest); } if (tree_view->priv->drag_dest_row) gtk_tree_row_reference_free (tree_view->priv->drag_dest_row); tree_view->priv->drag_dest_pos = pos; if (path) { tree_view->priv->drag_dest_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path); gtk_tree_view_queue_draw_path (tree_view, path, NULL); } else tree_view->priv->drag_dest_row = NULL; } void gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view, GtkTreePath **path, GtkTreeViewDropPosition *pos) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (path) { if (tree_view->priv->drag_dest_row) *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row); else *path = NULL; } if (pos) *pos = tree_view->priv->drag_dest_pos; } gboolean gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view, gint drag_x, gint drag_y, GtkTreePath **path, GtkTreeViewDropPosition *pos) { gint cell_y; gdouble offset_into_row; gdouble quarter; gint x, y; GdkRectangle cell; GtkTreeViewColumn *column = NULL; GtkTreePath *tmp_path = NULL; /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE); g_return_val_if_fail (drag_x >= 0, FALSE); g_return_val_if_fail (drag_y >= 0, FALSE); g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE); if (path) *path = NULL; /* remember that drag_x and drag_y are in widget coords, convert to tree window */ gtk_tree_view_widget_to_tree_coords (tree_view, drag_x, drag_y, &x, &y); /* If in the top quarter of a row, we drop before that row; if * in the bottom quarter, drop after that row; if in the middle, * and the row has children, drop into the row. */ if (!gtk_tree_view_get_path_at_pos (tree_view, tree_view->priv->bin_window, x, y, &tmp_path, &column, NULL, &cell_y)) return FALSE; gtk_tree_view_get_background_area (tree_view, tmp_path, column, &cell); offset_into_row = cell_y; if (path) *path = tmp_path; else gtk_tree_path_free (tmp_path); tmp_path = NULL; quarter = cell.height / 4.0; if (pos) { if (offset_into_row < quarter) { *pos = GTK_TREE_VIEW_DROP_BEFORE; } else if (offset_into_row < quarter * 2) { *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE; } else if (offset_into_row < quarter * 3) { *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER; } else { *pos = GTK_TREE_VIEW_DROP_AFTER; } } return TRUE; } static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view, GdkEventMotion *event) { GdkDragContext *context; TreeViewDragInfo *di; GtkTreePath *path = NULL; gint button; gint cell_x, cell_y; GtkTreeModel *model; di = get_info (tree_view); if (di == NULL) return FALSE; if (tree_view->priv->pressed_button < 0) return FALSE; if (!gtk_drag_check_threshold (GTK_WIDGET (tree_view), tree_view->priv->press_start_x, tree_view->priv->press_start_y, event->x, event->y)) return FALSE; model = gtk_tree_view_get_model (tree_view); if (model == NULL) return FALSE; button = tree_view->priv->pressed_button; tree_view->priv->pressed_button = -1; gtk_tree_view_get_path_at_pos (tree_view, tree_view->priv->bin_window, tree_view->priv->press_start_x, tree_view->priv->press_start_y, &path, NULL, &cell_x, &cell_y); if (path == NULL) return FALSE; /* FIXME if the path doesn't match the row_draggable predicate, * return FALSE and free path */ /* FIXME Check whether we're a start button, if not return FALSE and * free path */ context = gtk_drag_begin (GTK_WIDGET (tree_view), di->source_target_list, di->source_actions, button, (GdkEvent*)event); gtk_drag_set_icon_default (context); { GdkPixmap *row_pix; row_pix = gtk_tree_view_create_row_drag_icon (tree_view, path); gtk_drag_set_icon_pixmap (context, gdk_drawable_get_colormap (row_pix), row_pix, NULL, /* the + 1 is for the black border in the icon */ tree_view->priv->press_start_x + 1, cell_y + 1); gdk_pixmap_unref (row_pix); } set_source_row (context, model, path); gtk_tree_path_free (path); return TRUE; } /* Default signal implementations for the drag signals */ static void gtk_tree_view_drag_begin (GtkWidget *widget, GdkDragContext *context) { /* do nothing */ } static void gtk_tree_view_drag_end (GtkWidget *widget, GdkDragContext *context) { /* do nothing */ } static void gtk_tree_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time) { GtkTreeView *tree_view; GtkTreeModel *model; TreeViewDragInfo *di; GtkTreePath *source_row; tree_view = GTK_TREE_VIEW (widget); model = gtk_tree_view_get_model (tree_view); if (model == NULL) return; di = get_info (GTK_TREE_VIEW (widget)); if (di == NULL) return; source_row = get_source_row (context); if (source_row == NULL) return; /* We can implement the GTK_TREE_MODEL_ROW target generically for * any model; for DragSource models there are some other targets * we also support. */ if (GTK_IS_TREE_DRAG_SOURCE (model) && gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model), source_row, selection_data)) goto done; /* If drag_data_get does nothing, try providing row data. */ if (selection_data->target == gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE)) { gtk_selection_data_set_tree_row (selection_data, model, source_row); } done: gtk_tree_path_free (source_row); } static gboolean check_model_dnd (GtkTreeModel *model, GType required_iface, const gchar *signal) { if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface)) { g_warning ("You must override the default '%s' handler " "on GtkTreeView when using models that don't support " "the %s interface and enabling drag-and-drop. The simplest way to do this " "is to connect to '%s' and call " "gtk_signal_emit_stop_by_name() in your signal handler to prevent " "the default handler from running. Look at the source code " "for the default handler in gtktreeview.c to get an idea what " "your handler should do. (gtktreeview.c is in the GTK source " "code.) If you're using GTK from a language other than C, " "there may be a more natural way to override default handlers, e.g. via derivation.", signal, g_type_name (required_iface), signal); return FALSE; } else return TRUE; } static void gtk_tree_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context) { TreeViewDragInfo *di; GtkTreeModel *model; GtkTreeView *tree_view; GtkTreePath *source_row; tree_view = GTK_TREE_VIEW (widget); model = gtk_tree_view_get_model (tree_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete")) return; di = get_info (tree_view); if (di == NULL) return; source_row = get_source_row (context); if (source_row == NULL) return; gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model), source_row); gtk_tree_path_free (source_row); set_source_row (context, NULL, NULL); } static void remove_open_timeout (GtkTreeView *tree_view) { if (tree_view->priv->open_dest_timeout != 0) { gtk_timeout_remove (tree_view->priv->open_dest_timeout); tree_view->priv->open_dest_timeout = 0; } } static void gtk_tree_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time) { TreeViewDragInfo *di; di = get_info (GTK_TREE_VIEW (widget)); /* unset any highlight row */ gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); remove_scroll_timeout (GTK_TREE_VIEW (widget)); remove_open_timeout (GTK_TREE_VIEW (widget)); } static gint open_row_timeout (gpointer data) { GtkTreeView *tree_view = data; GtkTreePath *dest_path = NULL; GtkTreeViewDropPosition pos; gtk_tree_view_get_drag_dest_row (tree_view, &dest_path, &pos); if (dest_path && (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) { gtk_tree_view_expand_row (tree_view, dest_path, FALSE); tree_view->priv->open_dest_timeout = 0; gtk_tree_path_free (dest_path); return FALSE; } else { if (dest_path) gtk_tree_path_free (dest_path); return TRUE; } } /* Returns TRUE if event should not be propagated to parent widgets */ static gboolean set_destination_row (GtkTreeView *tree_view, GdkDragContext *context, gint x, gint y, GdkDragAction *suggested_action, GdkAtom *target) { GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; GtkTreeViewDropPosition old_pos; TreeViewDragInfo *di; GtkWidget *widget; GtkTreePath *old_dest_path = NULL; *suggested_action = 0; *target = GDK_NONE; widget = GTK_WIDGET (tree_view); di = get_info (tree_view); if (di == NULL) { /* someone unset us as a drag dest, note that if * we return FALSE drag_leave isn't called */ gtk_tree_view_set_drag_dest_row (tree_view, NULL, GTK_TREE_VIEW_DROP_BEFORE); remove_scroll_timeout (GTK_TREE_VIEW (widget)); remove_open_timeout (GTK_TREE_VIEW (widget)); return FALSE; /* no longer a drop site */ } *target = gtk_drag_dest_find_target (widget, context, di->dest_target_list); if (*target == GDK_NONE) { return FALSE; } if (!gtk_tree_view_get_dest_row_at_pos (tree_view, x, y, &path, &pos)) { /* can't drop here */ remove_open_timeout (tree_view); gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); /* don't propagate to parent though */ return TRUE; } g_assert (path); /* If we left the current row's "open" zone, unset the timeout for * opening the row */ gtk_tree_view_get_drag_dest_row (tree_view, &old_dest_path, &old_pos); if (old_dest_path && (gtk_tree_path_compare (path, old_dest_path) != 0 || !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))) remove_open_timeout (tree_view); if (old_dest_path) gtk_tree_path_free (old_dest_path); if (TRUE /* FIXME if the location droppable predicate */) { GtkWidget *source_widget; *suggested_action = context->suggested_action; source_widget = gtk_drag_get_source_widget (context); if (source_widget == widget) { /* Default to MOVE, unless the user has * pressed ctrl or alt to affect available actions */ if ((context->actions & GDK_ACTION_MOVE) != 0) *suggested_action = GDK_ACTION_MOVE; } gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), path, pos); } else { /* can't drop here */ remove_open_timeout (tree_view); gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); } return TRUE; } static gboolean gtk_tree_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; GtkTreeView *tree_view; GdkDragAction suggested_action = 0; GdkAtom target; tree_view = GTK_TREE_VIEW (widget); if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target)) return FALSE; ensure_scroll_timeout (tree_view); gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos); if (path == NULL) { /* Can't drop here. */ gdk_drag_status (context, 0, time); } else { if (tree_view->priv->open_dest_timeout == 0 && (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) { tree_view->priv->open_dest_timeout = gtk_timeout_add (500, open_row_timeout, tree_view); } if (target == gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE)) { /* Request data so we can use the source row when * determining whether to accept the drop */ set_status_pending (context, suggested_action); gtk_drag_get_data (widget, context, target, time); } else { set_status_pending (context, 0); gdk_drag_status (context, suggested_action, time); } } if (path) gtk_tree_path_free (path); return TRUE; } static GtkTreePath* get_logical_dest_row (GtkTreeView *tree_view) { /* adjust path to point to the row the drop goes in front of */ GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos); if (path == NULL) return NULL; if (pos == GTK_TREE_VIEW_DROP_BEFORE) ; /* do nothing */ else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE || pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER) { /* get first child, drop before it */ gtk_tree_path_append_index (path, 0); } else { g_assert (pos == GTK_TREE_VIEW_DROP_AFTER); gtk_tree_path_next (path); } return path; } static gboolean gtk_tree_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkTreeView *tree_view; GtkTreePath *path; GdkDragAction suggested_action = 0; GdkAtom target = GDK_NONE; TreeViewDragInfo *di; GtkTreeModel *model; tree_view = GTK_TREE_VIEW (widget); model = gtk_tree_view_get_model (tree_view); remove_scroll_timeout (GTK_TREE_VIEW (widget)); remove_open_timeout (GTK_TREE_VIEW (widget)); di = get_info (tree_view); if (di == NULL) return FALSE; if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop")) return FALSE; if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target)) return FALSE; path = get_logical_dest_row (tree_view); if (target != GDK_NONE && path != NULL) { /* in case a motion had requested drag data, change things so we * treat drag data receives as a drop. */ set_status_pending (context, 0); set_dest_row (context, model, path); } if (path) gtk_tree_path_free (path); /* Unset this thing */ gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); if (target != GDK_NONE) { gtk_drag_get_data (widget, context, target, time); return TRUE; } else return FALSE; } static void gtk_tree_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time) { GtkTreePath *path; TreeViewDragInfo *di; gboolean accepted = FALSE; GtkTreeModel *model; GtkTreeView *tree_view; GtkTreePath *dest_row; GdkDragAction suggested_action; tree_view = GTK_TREE_VIEW (widget); model = gtk_tree_view_get_model (tree_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received")) return; di = get_info (tree_view); if (di == NULL) return; suggested_action = get_status_pending (context); if (suggested_action) { /* We are getting this data due to a request in drag_motion, * rather than due to a request in drag_drop, so we are just * supposed to call drag_status, not actually paste in the * data. */ path = get_logical_dest_row (tree_view); if (path == NULL) suggested_action = 0; if (suggested_action) { GtkTreeModel *src_model = NULL; GtkTreePath *src_path = NULL; if (!gtk_selection_data_get_tree_row (selection_data, &src_model, &src_path)) suggested_action = 0; if (suggested_action) { if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), src_model, src_path, path)) suggested_action = 0; gtk_tree_path_free (src_path); } } gdk_drag_status (context, suggested_action, time); if (path) gtk_tree_path_free (path); /* If you can't drop, remove user drop indicator until the next motion */ if (suggested_action == 0) gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); return; } dest_row = get_dest_row (context); if (dest_row == NULL) return; if (selection_data->length >= 0) { if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model), dest_row, selection_data)) accepted = TRUE; } gtk_drag_finish (context, accepted, (context->action == GDK_ACTION_MOVE), time); gtk_tree_path_free (dest_row); /* drop dest_row */ set_dest_row (context, NULL, NULL); }