X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=gtk%2Fgtkcellview.c;h=09840d4ecaf02e022d10b1f8c1c9deb4032d7862;hb=abcfd2d5ef4caaf2c903624a3c7e61d61f30411a;hp=873335d4b64d4112f7413131232a7d0865f18242;hpb=24bafd8693e88b9b1635bbd6d1401ceb68ca7809;p=~andy%2Fgtk diff --git a/gtk/gtkcellview.c b/gtk/gtkcellview.c index 873335d4b..09840d4ec 100644 --- a/gtk/gtkcellview.c +++ b/gtk/gtkcellview.c @@ -25,9 +25,10 @@ #include "gtkcellrenderertext.h" #include "gtkcellrendererpixbuf.h" #include "gtkprivate.h" +#include "gtksizerequest.h" #include #include "gtkbuildable.h" -#include "gtkalias.h" + typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo; struct _GtkCellViewCellInfo @@ -35,6 +36,7 @@ struct _GtkCellViewCellInfo GtkCellRenderer *cell; gint requested_width; + gint natural_width; gint real_width; guint expand : 1; guint pack : 1; @@ -53,7 +55,7 @@ struct _GtkCellViewPrivate GList *cell_list; gint spacing; - GdkColor background; + GdkRGBA background; gboolean background_set; }; @@ -68,12 +70,10 @@ static void gtk_cell_view_set_property (GObject *obj const GValue *value, GParamSpec *pspec); static void gtk_cell_view_finalize (GObject *object); -static void gtk_cell_view_size_request (GtkWidget *widget, - GtkRequisition *requisition); static void gtk_cell_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); -static gboolean gtk_cell_view_expose (GtkWidget *widget, - GdkEventExpose *event); +static gboolean gtk_cell_view_draw (GtkWidget *widget, + cairo_t *cr); static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, gchar *property, @@ -120,15 +120,30 @@ static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable const gchar *tagname, gpointer *data); +static void gtk_cell_view_get_preferred_width (GtkWidget *widget, + gint *minimum_size, + gint *natural_size); +static void gtk_cell_view_get_preferred_height (GtkWidget *widget, + gint *minimum_size, + gint *natural_size); +static void gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget, + gint avail_size, + gint *minimum_size, + gint *natural_size); +static void gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget, + gint avail_size, + gint *minimum_size, + gint *natural_size); + static GtkBuildableIface *parent_buildable_iface; -#define GTK_CELL_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate)) enum { PROP_0, PROP_BACKGROUND, PROP_BACKGROUND_GDK, + PROP_BACKGROUND_RGBA, PROP_BACKGROUND_SET, PROP_MODEL }; @@ -139,6 +154,7 @@ G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_cell_view_buildable_init)) + static void gtk_cell_view_class_init (GtkCellViewClass *klass) { @@ -149,9 +165,12 @@ gtk_cell_view_class_init (GtkCellViewClass *klass) gobject_class->set_property = gtk_cell_view_set_property; gobject_class->finalize = gtk_cell_view_finalize; - widget_class->expose_event = gtk_cell_view_expose; - widget_class->size_allocate = gtk_cell_view_size_allocate; - widget_class->size_request = gtk_cell_view_size_request; + widget_class->draw = gtk_cell_view_draw; + widget_class->size_allocate = gtk_cell_view_size_allocate; + widget_class->get_preferred_width = gtk_cell_view_get_preferred_width; + widget_class->get_preferred_height = gtk_cell_view_get_preferred_height; + widget_class->get_preferred_width_for_height = gtk_cell_view_get_preferred_width_for_height; + widget_class->get_preferred_height_for_width = gtk_cell_view_get_preferred_height_for_width; /* properties */ g_object_class_install_property (gobject_class, @@ -168,6 +187,20 @@ gtk_cell_view_class_init (GtkCellViewClass *klass) P_("Background color as a GdkColor"), GDK_TYPE_COLOR, GTK_PARAM_READWRITE)); + /** + * GtkCellView:background-rgba + * + * The background color as a #GdkRGBA + * + * Since: 3.0 + */ + g_object_class_install_property (gobject_class, + PROP_BACKGROUND_RGBA, + g_param_spec_boxed ("background-rgba", + P_("Background RGBA color"), + P_("Background color as a GdkRGBA"), + GDK_TYPE_RGBA, + GTK_PARAM_READWRITE)); /** * GtkCellView:model @@ -229,11 +262,17 @@ gtk_cell_view_get_property (GObject *object, { GdkColor color; - color = view->priv->background; + color.red = (guint) (view->priv->background.red * 65535); + color.green = (guint) (view->priv->background.green * 65535); + color.blue = (guint) (view->priv->background.blue * 65535); + color.pixel = 0; g_value_set_boxed (value, &color); } break; + case PROP_BACKGROUND_RGBA: + g_value_set_boxed (value, &view->priv->background); + break; case PROP_BACKGROUND_SET: g_value_set_boolean (value, view->priv->background_set); break; @@ -273,6 +312,9 @@ gtk_cell_view_set_property (GObject *object, case PROP_BACKGROUND_GDK: gtk_cell_view_set_background_color (view, g_value_get_boxed (value)); break; + case PROP_BACKGROUND_RGBA: + gtk_cell_view_set_background_rgba (view, g_value_get_boxed (value)); + break; case PROP_BACKGROUND_SET: view->priv->background_set = g_value_get_boolean (value); break; @@ -288,9 +330,14 @@ gtk_cell_view_set_property (GObject *object, static void gtk_cell_view_init (GtkCellView *cellview) { - gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE); + GtkCellViewPrivate *priv; - cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview); + cellview->priv = G_TYPE_INSTANCE_GET_PRIVATE (cellview, + GTK_TYPE_CELL_VIEW, + GtkCellViewPrivate); + priv = cellview->priv; + + gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE); } static void @@ -310,117 +357,124 @@ gtk_cell_view_finalize (GObject *object) } static void -gtk_cell_view_size_request (GtkWidget *widget, - GtkRequisition *requisition) +gtk_cell_view_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) { - GList *i; - gboolean first_cell = TRUE; - GtkCellView *cellview; + GtkCellView *cellview; + GtkRequestedSize *sizes; + GList *list; + gint n_visible_cells, n_expand_cells; + gint avail_width = 0; + gint extra_per_cell, extra_extra, i; + gboolean first_cell = TRUE; + + gtk_widget_set_allocation (widget, allocation); cellview = GTK_CELL_VIEW (widget); - requisition->width = 0; - requisition->height = 0; + avail_width = allocation->width; - if (cellview->priv->displayed_row) - gtk_cell_view_set_cell_data (cellview); + /* Count visible/expand children */ + for (n_visible_cells = 0, n_expand_cells = 0, list = cellview->priv->cell_list; + list; list = list->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; - for (i = cellview->priv->cell_list; i; i = i->next) + n_visible_cells++; + + if (info->expand) + n_expand_cells++; + } + + sizes = g_new0 (GtkRequestedSize, n_visible_cells); + + /* checking how much extra space we have */ + for (i = 0, list = cellview->priv->cell_list; list; list = list->next) { - gint width, height; - GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; - if (!info->cell->visible) + if (!gtk_cell_renderer_get_visible (info->cell)) continue; - if (!first_cell) - requisition->width += cellview->priv->spacing; + sizes[i].data = info; + sizes[i].minimum_size = info->requested_width; + sizes[i].natural_size = info->natural_width; - gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL, - &width, &height); + if (!first_cell) + avail_width -= cellview->priv->spacing; - info->requested_width = width; - requisition->width += width; - requisition->height = MAX (requisition->height, height); + avail_width -= sizes[i].minimum_size; first_cell = FALSE; - } -} -static void -gtk_cell_view_size_allocate (GtkWidget *widget, - GtkAllocation *allocation) -{ - GList *i; - gint expand_cell_count = 0; - gint full_requested_width = 0; - gint extra_space; - GtkCellView *cellview; + i++; + } - widget->allocation = *allocation; + avail_width = gtk_distribute_natural_allocation (MAX (0, avail_width), n_visible_cells, sizes); - cellview = GTK_CELL_VIEW (widget); + /* Deal with any expand space... */ + if (n_expand_cells > 0) + { + extra_per_cell = avail_width / n_expand_cells; + extra_extra = avail_width % n_expand_cells; + } + else + /* Everything just left-aligned if no cells expand */ + extra_per_cell = extra_extra = 0; - /* checking how much extra space we have */ - for (i = cellview->priv->cell_list; i; i = i->next) + for (i = 0, list = cellview->priv->cell_list; list; list = list->next) { - GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; - if (!info->cell->visible) + if (!gtk_cell_renderer_get_visible (info->cell)) continue; + info->real_width = sizes[i].minimum_size; + if (info->expand) - expand_cell_count++; + { + info->real_width += extra_per_cell; - full_requested_width += info->requested_width; + if (extra_extra) + { + info->real_width++; + extra_extra--; + } + } + + /* increment index into sizes for visible children */ + i++; } - extra_space = widget->allocation.width - full_requested_width; - if (extra_space < 0) - extra_space = 0; - else if (extra_space > 0 && expand_cell_count > 0) - extra_space /= expand_cell_count; - - for (i = cellview->priv->cell_list; i; i = i->next) - { - GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; - - if (!info->cell->visible) - continue; - - info->real_width = info->requested_width + - (info->expand ? extra_space : 0); - } + g_free (sizes); } static gboolean -gtk_cell_view_expose (GtkWidget *widget, - GdkEventExpose *event) +gtk_cell_view_draw (GtkWidget *widget, + cairo_t *cr) { - GList *i; + GList *list; GtkCellView *cellview; GdkRectangle area; GtkCellRendererState state; gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL); + GtkPackType packing; + int width; cellview = GTK_CELL_VIEW (widget); - if (!gtk_widget_is_drawable (widget)) - return FALSE; + /* render cells */ + area.x = 0; + area.y = 0; + area.width = width = gtk_widget_get_allocated_width (widget); + area.height = gtk_widget_get_allocated_height (widget); /* "blank" background */ if (cellview->priv->background_set) { - cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window); - - gdk_cairo_rectangle (cr, &widget->allocation); - cairo_set_source_rgb (cr, - cellview->priv->background.red / 65535., - cellview->priv->background.green / 65535., - cellview->priv->background.blue / 65535.); + gdk_cairo_rectangle (cr, &area); + gdk_cairo_set_source_rgba (cr, &cellview->priv->background); cairo_fill (cr); - - cairo_destroy (cr); } /* set cell data (if available) */ @@ -429,69 +483,51 @@ gtk_cell_view_expose (GtkWidget *widget, else if (cellview->priv->model) return FALSE; - /* render cells */ - area = widget->allocation; - - /* we draw on our very own window, initialize x and y to zero */ - area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0); - area.y = widget->allocation.y; - - if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT) + if (gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT) state = GTK_CELL_RENDERER_PRELIT; - else if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE) + else if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE) state = GTK_CELL_RENDERER_INSENSITIVE; else state = 0; - /* PACK_START */ - for (i = cellview->priv->cell_list; i; i = i->next) - { - GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; - - if (info->pack == GTK_PACK_END) - continue; - - if (!info->cell->visible) - continue; - - area.width = info->real_width; - if (rtl) - area.x -= area.width; - - gtk_cell_renderer_render (info->cell, - event->window, - widget, - /* FIXME! */ - &area, &area, &event->area, state); - - if (!rtl) - area.x += info->real_width; - } - - area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width); - - /* PACK_END */ - for (i = cellview->priv->cell_list; i; i = i->next) + for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing) { - GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; - - if (info->pack == GTK_PACK_START) - continue; + if (packing == GTK_PACK_START) + area.x = rtl ? width : 0; + else + area.x = rtl ? 0 : width; - if (!info->cell->visible) - continue; - - area.width = info->real_width; - if (!rtl) - area.x -= area.width; - - gtk_cell_renderer_render (info->cell, - widget->window, - widget, - /* FIXME ! */ - &area, &area, &event->area, state); - if (rtl) - area.x += info->real_width; + for (list = cellview->priv->cell_list; list; list = list->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; + + if (info->pack != packing) + continue; + + if (!gtk_cell_renderer_get_visible (info->cell)) + continue; + + area.width = info->real_width; + + if ((packing == GTK_PACK_START && rtl) || + (packing == GTK_PACK_END && !rtl)) + area.x -= area.width; + + gtk_cell_renderer_render (info->cell, + cr, + widget, + /* FIXME! */ + &area, &area, state); + + if ((packing == GTK_PACK_START && !rtl) || + (packing == GTK_PACK_END && rtl)) + { + area.x += area.width; + area.x += cellview->priv->spacing; + } + else + area.x -= cellview->priv->spacing; + } } return FALSE; @@ -580,6 +616,8 @@ gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout, info->pack = GTK_PACK_START; cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info); + + gtk_widget_queue_resize (GTK_WIDGET (cellview)); } static void @@ -600,6 +638,8 @@ gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout, info->pack = GTK_PACK_END; cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info); + + gtk_widget_queue_resize (GTK_WIDGET (cellview)); } static void @@ -768,7 +808,7 @@ gtk_cell_view_new_with_text (const gchar *text) * @markup: the text to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererText - * to it, and makes its show @markup. The text can text can be + * to it, and makes it show @markup. The text can be * marked up with the Pango text * markup language. * @@ -895,7 +935,7 @@ gtk_cell_view_set_model (GtkCellView *cell_view, * Returns the model for @cell_view. If no model is used %NULL is * returned. * - * Returns: a #GtkTreeModel used or %NULL + * Returns: (transfer none): a #GtkTreeModel used or %NULL * * Since: 2.16 **/ @@ -979,32 +1019,108 @@ gtk_cell_view_get_displayed_row (GtkCellView *cell_view) * Return value: %TRUE * * Since: 2.6 + * + * Deprecated: 3.0: Use gtk_cell_view_get_desired_width_of_row() and + * gtk_cell_view_get_desired_height_for_width_of_row() instead. */ gboolean gtk_cell_view_get_size_of_row (GtkCellView *cell_view, GtkTreePath *path, GtkRequisition *requisition) { - GtkTreeRowReference *tmp; GtkRequisition req; g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); g_return_val_if_fail (path != NULL, FALSE); - g_return_val_if_fail (requisition != NULL, FALSE); + + /* Return the minimum height for the minimum width */ + gtk_cell_view_get_desired_width_of_row (cell_view, path, &req.width, NULL); + gtk_cell_view_get_desired_height_for_width_of_row (cell_view, path, req.width, &req.height, NULL); + + if (requisition) + *requisition = req; + + return TRUE; +} + + +/** + * gtk_cell_view_get_desired_width_of_row: + * @cell_view: a #GtkCellView + * @path: a #GtkTreePath + * @minimum_size: location to store the minimum size + * @natural_size: location to store the natural size + * + * Sets @minimum_size and @natural_size to the width desired by @cell_view + * to display the model row pointed to by @path. + * + * Since: 3.0 + */ +void +gtk_cell_view_get_desired_width_of_row (GtkCellView *cell_view, + GtkTreePath *path, + gint *minimum_size, + gint *natural_size) +{ + GtkTreeRowReference *tmp; + + g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); + g_return_if_fail (path != NULL); + g_return_if_fail (minimum_size != NULL || natural_size != NULL); tmp = cell_view->priv->displayed_row; cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); - gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition); + gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), minimum_size, natural_size); gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = tmp; - /* restore actual size info */ - gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req); + /* Restore active size (this will restore the cellrenderer info->width/requested_width's) */ + gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), NULL, NULL); +} - return TRUE; + +/** + * gtk_cell_view_get_desired_height_for_width_of_row: + * @cell_view: a #GtkCellView + * @path: a #GtkTreePath + * @avail_size: available width + * @minimum_size: location to store the minimum height + * @natural_size: location to store the natural height + * + * Sets @minimum_size and @natural_size to the height desired by @cell_view + * if it were allocated a width of @avail_size to display the model row + * pointed to by @path. + * + * Since: 3.0 + */ +void +gtk_cell_view_get_desired_height_for_width_of_row (GtkCellView *cell_view, + GtkTreePath *path, + gint avail_size, + gint *minimum_size, + gint *natural_size) +{ + GtkTreeRowReference *tmp; + + g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); + g_return_if_fail (path != NULL); + g_return_if_fail (minimum_size != NULL || natural_size != NULL); + + tmp = cell_view->priv->displayed_row; + cell_view->priv->displayed_row = + gtk_tree_row_reference_new (cell_view->priv->model, path); + + /* Then get the collective height_for_width based on the cached values */ + gtk_cell_view_get_preferred_height_for_width (GTK_WIDGET (cell_view), avail_size, minimum_size, natural_size); + + gtk_tree_row_reference_free (cell_view->priv->displayed_row); + cell_view->priv->displayed_row = tmp; + + /* Restore active size (this will restore the cellrenderer info->width/requested_width's) */ + gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), NULL, NULL); } /** @@ -1030,7 +1146,47 @@ gtk_cell_view_set_background_color (GtkCellView *cell_view, g_object_notify (G_OBJECT (cell_view), "background-set"); } - cell_view->priv->background = *color; + cell_view->priv->background.red = color->red / 65535.; + cell_view->priv->background.green = color->green / 65535.; + cell_view->priv->background.blue = color->blue / 65535.; + cell_view->priv->background.alpha = 1; + } + else + { + if (cell_view->priv->background_set) + { + cell_view->priv->background_set = FALSE; + g_object_notify (G_OBJECT (cell_view), "background-set"); + } + } + + gtk_widget_queue_draw (GTK_WIDGET (cell_view)); +} + +/** + * gtk_cell_view_set_background_rgba: + * @cell_view: a #GtkCellView + * @rgba: the new background color + * + * Sets the background color of @cell_view. + * + * Since: 3.0 + */ +void +gtk_cell_view_set_background_rgba (GtkCellView *cell_view, + const GdkRGBA *rgba) +{ + g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); + + if (rgba) + { + if (!cell_view->priv->background_set) + { + cell_view->priv->background_set = TRUE; + g_object_notify (G_OBJECT (cell_view), "background-set"); + } + + cell_view->priv->background = *rgba; } else { @@ -1064,26 +1220,6 @@ gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout) return g_list_reverse (retval); } -/** - * gtk_cell_view_get_cell_renderers: - * @cell_view: a #GtkCellView - * - * Returns the cell renderers which have been added to @cell_view. - * - * Return value: a list of cell renderers. The list, but not the - * renderers has been newly allocated and should be freed with - * g_list_free() when no longer needed. - * - * Since: 2.6 - * - * Deprecated: 2.18: use gtk_cell_layout_get_cells() instead. - **/ -GList * -gtk_cell_view_get_cell_renderers (GtkCellView *cell_view) -{ - return gtk_cell_view_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view)); -} - static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, @@ -1116,6 +1252,183 @@ gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, data); } +static void +gtk_cell_view_get_preferred_width (GtkWidget *widget, + gint *minimum_size, + gint *natural_size) +{ + GList *list; + gint cell_min, cell_nat; + gboolean first_cell = TRUE; + GtkCellView *cellview = GTK_CELL_VIEW (widget); + gint minimum, natural; + + minimum = natural = 0; + + if (cellview->priv->displayed_row) + gtk_cell_view_set_cell_data (cellview); + + for (list = cellview->priv->cell_list; list; list = list->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; + + if (gtk_cell_renderer_get_visible (info->cell)) + { + + if (!first_cell) + { + minimum += cellview->priv->spacing; + natural += cellview->priv->spacing; + } + + gtk_cell_renderer_get_preferred_width (info->cell, + GTK_WIDGET (cellview), &cell_min, &cell_nat); + + info->requested_width = cell_min; + info->natural_width = cell_nat; + + minimum += info->requested_width; + natural += info->natural_width; + + first_cell = FALSE; + } + } + + if (minimum_size) + *minimum_size = minimum; + + if (natural_size) + *natural_size = natural; +} + +static void +gtk_cell_view_get_preferred_height (GtkWidget *widget, + gint *minimum_size, + gint *natural_size) +{ + gint minimum_width; + + /* CellViews only need to respond to height-for-width mode (cellview is pretty much + * an implementation detail of GtkComboBox) */ + gtk_cell_view_get_preferred_width (widget, &minimum_width, NULL); + gtk_cell_view_get_preferred_height_for_width (widget, minimum_width, minimum_size, natural_size); +} -#define __GTK_CELL_VIEW_C__ -#include "gtkaliasdef.c" +static void +gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget, + gint for_size, + gint *minimum_size, + gint *natural_size) +{ + /* CellViews only need to respond to height-for-width mode (cellview is pretty much + * an implementation detail of GtkComboBox) */ + gtk_cell_view_get_preferred_width (widget, minimum_size, natural_size); +} + +static void +gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget, + gint for_size, + gint *minimum_size, + gint *natural_size) +{ + GtkCellView *cellview = GTK_CELL_VIEW (widget); + GList *list; + GtkRequestedSize *sizes; + GArray *array; + gint minimum, natural, avail_size; + gboolean first_cell = TRUE; + gint n_expand_cells = 0; + gint extra_per_cell, extra_extra, i; + + minimum = natural = 0; + avail_size = for_size; + + array = g_array_new (0, TRUE, sizeof (GtkRequestedSize)); + + if (cellview->priv->displayed_row) + gtk_cell_view_set_cell_data (cellview); + + /* First allocate the right width to all cells */ + for (list = cellview->priv->cell_list; list; list = list->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; + + if (gtk_cell_renderer_get_visible (info->cell)) + { + GtkRequestedSize requested; + + gtk_cell_renderer_get_preferred_width (GTK_CELL_RENDERER (info->cell), + GTK_WIDGET (cellview), + &requested.minimum_size, + &requested.natural_size); + + requested.data = info; + g_array_append_val (array, requested); + + avail_size -= requested.minimum_size; + + if (!first_cell) + avail_size -= cellview->priv->spacing; + + first_cell = FALSE; + + if (info->expand) + n_expand_cells++; + } + } + + sizes = (GtkRequestedSize *)array->data; + avail_size = gtk_distribute_natural_allocation (MAX (0, avail_size), array->len, sizes); + + /* Deal with any expand space... */ + if (n_expand_cells > 0) + { + extra_per_cell = avail_size / n_expand_cells; + extra_extra = avail_size % n_expand_cells; + } + else + /* Everything just left-aligned if no cells expand */ + extra_per_cell = extra_extra = 0; + + /* Now get the height for the real width of each cell */ + for (i = 0, list = cellview->priv->cell_list; list; list = list->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; + gint cell_minimum, cell_natural; + + if (gtk_cell_renderer_get_visible (info->cell)) + { + gint cell_width = sizes[i].minimum_size; + + g_assert (sizes[i].data == info); + + if (info->expand) + { + cell_width += extra_per_cell; + if (extra_extra) + { + cell_width++; + extra_extra--; + } + } + + /* Get the height for the real width of this cell */ + gtk_cell_renderer_get_preferred_height_for_width (GTK_CELL_RENDERER (info->cell), + GTK_WIDGET (widget), + cell_width, &cell_minimum, &cell_natural); + + minimum = MAX (minimum, cell_minimum); + natural = MAX (natural, cell_natural); + + /* increment sizes[] index for visible cells */ + i++; + } + } + + g_array_free (array, TRUE); + + if (minimum_size) + *minimum_size = minimum; + if (natural_size) + *natural_size = natural; +}