#include <math.h>
#include <string.h>
#include "gtklabel.h"
+#include "gtkmain.h"
+#include "gtkmarshalers.h"
+#include "gtkwindow.h"
#include "gdk/gdkkeysyms.h"
#include "gtkclipboard.h"
-#include "gdk/gdki18n.h"
#include <pango/pango.h>
+#include "gtkimagemenuitem.h"
+#include "gtkintl.h"
+#include "gtkseparatormenuitem.h"
+#include "gtkmenuitem.h"
+#include "gtknotebook.h"
+#include "gtkstock.h"
+#include "gtkbindings.h"
struct _GtkLabelSelectionInfo
{
GdkWindow *window;
gint selection_anchor;
gint selection_end;
+ GtkWidget *popup_menu;
};
enum {
- ARG_0,
- ARG_LABEL,
- ARG_PATTERN,
- ARG_JUSTIFY,
- ARG_WRAP
+ MOVE_CURSOR,
+ COPY_CLIPBOARD,
+ POPULATE_POPUP,
+ LAST_SIGNAL
};
+enum {
+ PROP_0,
+ PROP_LABEL,
+ PROP_ATTRIBUTES,
+ PROP_USE_MARKUP,
+ PROP_USE_UNDERLINE,
+ PROP_JUSTIFY,
+ PROP_PATTERN,
+ PROP_WRAP,
+ PROP_SELECTABLE,
+ PROP_MNEMONIC_KEYVAL,
+ PROP_MNEMONIC_WIDGET,
+ PROP_CURSOR_POSITION,
+ PROP_SELECTION_BOUND
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
static void gtk_label_class_init (GtkLabelClass *klass);
static void gtk_label_init (GtkLabel *label);
-static void gtk_label_set_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id);
-static void gtk_label_get_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id);
+static void gtk_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_label_destroy (GtkObject *object);
static void gtk_label_finalize (GObject *object);
static void gtk_label_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_label_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
+static void gtk_label_state_changed (GtkWidget *widget,
+ GtkStateType state);
static void gtk_label_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_label_direction_changed (GtkWidget *widget,
static gint gtk_label_motion (GtkWidget *widget,
GdkEventMotion *event);
+
+static void gtk_label_set_text_internal (GtkLabel *label,
+ gchar *str);
+static void gtk_label_set_label_internal (GtkLabel *label,
+ gchar *str);
+static void gtk_label_set_use_markup_internal (GtkLabel *label,
+ gboolean val);
+static void gtk_label_set_use_underline_internal (GtkLabel *label,
+ gboolean val);
+static void gtk_label_set_attributes_internal (GtkLabel *label,
+ PangoAttrList *attrs);
+static void gtk_label_set_uline_text_internal (GtkLabel *label,
+ const gchar *str);
+static void gtk_label_set_pattern_internal (GtkLabel *label,
+ const gchar *pattern);
+static void set_markup (GtkLabel *label,
+ const gchar *str,
+ gboolean with_uline);
+static void gtk_label_recalculate (GtkLabel *label);
+static void gtk_label_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *old_toplevel);
+static void gtk_label_screen_changed (GtkWidget *widget,
+ GdkScreen *old_screen);
+
static void gtk_label_create_window (GtkLabel *label);
static void gtk_label_destroy_window (GtkLabel *label);
static void gtk_label_clear_layout (GtkLabel *label);
-static void gtk_label_ensure_layout (GtkLabel *label,
- gint *widthp,
- gint *heightp);
+static void gtk_label_ensure_layout (GtkLabel *label);
static void gtk_label_select_region_index (GtkLabel *label,
gint anchor_index,
gint end_index);
+static gboolean gtk_label_mnemonic_activate (GtkWidget *widget,
+ gboolean group_cycling);
+static void gtk_label_setup_mnemonic (GtkLabel *label,
+ guint last_key);
+static gboolean gtk_label_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+
+/* For selectable lables: */
+static void gtk_label_move_cursor (GtkLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection);
+static void gtk_label_copy_clipboard (GtkLabel *label);
+static void gtk_label_select_all (GtkLabel *label);
+static void gtk_label_do_popup (GtkLabel *label,
+ GdkEventButton *event);
+
+static gint gtk_label_move_forward_word (GtkLabel *label,
+ gint start);
+static gint gtk_label_move_backward_word (GtkLabel *label,
+ gint start);
-GtkMiscClass *parent_class = NULL;
+static GtkMiscClass *parent_class = NULL;
-GtkType
+
+GType
gtk_label_get_type (void)
{
- static GtkType label_type = 0;
+ static GType label_type = 0;
if (!label_type)
{
(GInstanceInitFunc) gtk_label_init,
};
- label_type = g_type_register_static (GTK_TYPE_MISC, "GtkLabel", &label_info, 0);
+ label_type = g_type_register_static (GTK_TYPE_MISC, "GtkLabel",
+ &label_info, 0);
}
return label_type;
}
+static void
+add_move_binding (GtkBindingSet *binding_set,
+ guint keyval,
+ guint modmask,
+ GtkMovementStep step,
+ gint count)
+{
+ g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
+
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, FALSE);
+
+ /* Selection-extending version */
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, TRUE);
+}
+
static void
gtk_label_class_init (GtkLabelClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
-
- object_class = (GtkObjectClass*) class;
- widget_class = (GtkWidgetClass*) class;
-
- parent_class = gtk_type_class (GTK_TYPE_MISC);
-
- gtk_object_add_arg_type ("GtkLabel::label", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_LABEL);
- gtk_object_add_arg_type ("GtkLabel::pattern", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_PATTERN);
- gtk_object_add_arg_type ("GtkLabel::justify", GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFY);
- gtk_object_add_arg_type ("GtkLabel::wrap", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_WRAP);
+ GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+ GtkBindingSet *binding_set;
+
+ parent_class = g_type_class_peek_parent (class);
+ gobject_class->set_property = gtk_label_set_property;
+ gobject_class->get_property = gtk_label_get_property;
gobject_class->finalize = gtk_label_finalize;
- object_class->set_arg = gtk_label_set_arg;
- object_class->get_arg = gtk_label_get_arg;
+ object_class->destroy = gtk_label_destroy;
widget_class->size_request = gtk_label_size_request;
widget_class->size_allocate = gtk_label_size_allocate;
+ widget_class->state_changed = gtk_label_state_changed;
widget_class->style_set = gtk_label_style_set;
widget_class->direction_changed = gtk_label_direction_changed;
widget_class->expose_event = gtk_label_expose;
widget_class->button_press_event = gtk_label_button_press;
widget_class->button_release_event = gtk_label_button_release;
widget_class->motion_notify_event = gtk_label_motion;
+ widget_class->hierarchy_changed = gtk_label_hierarchy_changed;
+ widget_class->screen_changed = gtk_label_screen_changed;
+ widget_class->mnemonic_activate = gtk_label_mnemonic_activate;
+ widget_class->focus = gtk_label_focus;
+
+ class->move_cursor = gtk_label_move_cursor;
+ class->copy_clipboard = gtk_label_copy_clipboard;
+
+ signals[MOVE_CURSOR] =
+ g_signal_new ("move_cursor",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkLabelClass, move_cursor),
+ NULL, NULL,
+ _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
+ G_TYPE_NONE, 3,
+ GTK_TYPE_MOVEMENT_STEP,
+ G_TYPE_INT,
+ G_TYPE_BOOLEAN);
+
+ signals[COPY_CLIPBOARD] =
+ g_signal_new ("copy_clipboard",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkLabelClass, copy_clipboard),
+ NULL, NULL,
+ _gtk_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ signals[POPULATE_POPUP] =
+ g_signal_new ("populate_popup",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GtkLabelClass, populate_popup),
+ NULL, NULL,
+ _gtk_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ GTK_TYPE_MENU);
+
+ g_object_class_install_property (gobject_class,
+ PROP_LABEL,
+ g_param_spec_string ("label",
+ _("Label"),
+ _("The text of the label"),
+ NULL,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_ATTRIBUTES,
+ g_param_spec_boxed ("attributes",
+ _("Attributes"),
+ _("A list of style attributes to apply to the text of the label"),
+ PANGO_TYPE_ATTR_LIST,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_USE_MARKUP,
+ g_param_spec_boolean ("use_markup",
+ _("Use markup"),
+ _("The text of the label includes XML markup. See pango_parse_markup()"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_USE_UNDERLINE,
+ g_param_spec_boolean ("use_underline",
+ _("Use underline"),
+ _("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
+ FALSE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_JUSTIFY,
+ g_param_spec_enum ("justify",
+ _("Justification"),
+ _("The alignment of the lines in the text of the label relative to each other. This does NOT affect the alignment of the label within its allocation. See GtkMisc::xalign for that"),
+ GTK_TYPE_JUSTIFICATION,
+ GTK_JUSTIFY_LEFT,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_PATTERN,
+ g_param_spec_string ("pattern",
+ _("Pattern"),
+ _("A string with _ characters in positions correspond to characters in the text to underline"),
+ NULL,
+ G_PARAM_WRITABLE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_WRAP,
+ g_param_spec_boolean ("wrap",
+ _("Line wrap"),
+ _("If set, wrap lines if the text becomes too wide"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTABLE,
+ g_param_spec_boolean ("selectable",
+ _("Selectable"),
+ _("Whether the label text can be selected with the mouse"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_MNEMONIC_KEYVAL,
+ g_param_spec_uint ("mnemonic_keyval",
+ _("Mnemonic key"),
+ _("The mnemonic accelerator key for this label"),
+ 0,
+ G_MAXUINT,
+ GDK_VoidSymbol,
+ G_PARAM_READABLE));
+ g_object_class_install_property (gobject_class,
+ PROP_MNEMONIC_WIDGET,
+ g_param_spec_object ("mnemonic_widget",
+ _("Mnemonic widget"),
+ _("The widget to be activated when the label's mnemonic "
+ "key is pressed"),
+ GTK_TYPE_WIDGET,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CURSOR_POSITION,
+ g_param_spec_int ("cursor_position",
+ _("Cursor Position"),
+ _("The current position of the insertion cursor in chars"),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTION_BOUND,
+ g_param_spec_int ("selection_bound",
+ _("Selection Bound"),
+ _("The position of the opposite end of the selection from the cursor in chars"),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ /*
+ * Key bindings
+ */
+
+ binding_set = gtk_binding_set_by_class (class);
+
+ /* Moving the insertion point */
+ add_move_binding (binding_set, GDK_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ /* copy */
+ gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
+ "copy_clipboard", 0);
}
-static void
-gtk_label_set_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id)
+static void
+gtk_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
{
GtkLabel *label;
-
+
label = GTK_LABEL (object);
- switch (arg_id)
+ switch (prop_id)
{
- case ARG_LABEL:
- gtk_label_set_text (label, GTK_VALUE_STRING (*arg));
+ case PROP_LABEL:
+ gtk_label_set_label (label, g_value_get_string (value));
break;
- case ARG_PATTERN:
- gtk_label_set_pattern (label, GTK_VALUE_STRING (*arg));
+ case PROP_ATTRIBUTES:
+ gtk_label_set_attributes (label, g_value_get_boxed (value));
break;
- case ARG_JUSTIFY:
- gtk_label_set_justify (label, GTK_VALUE_ENUM (*arg));
+ case PROP_USE_MARKUP:
+ gtk_label_set_use_markup (label, g_value_get_boolean (value));
break;
- case ARG_WRAP:
- gtk_label_set_line_wrap (label, GTK_VALUE_BOOL (*arg));
+ case PROP_USE_UNDERLINE:
+ gtk_label_set_use_underline (label, g_value_get_boolean (value));
+ break;
+ case PROP_JUSTIFY:
+ gtk_label_set_justify (label, g_value_get_enum (value));
+ break;
+ case PROP_PATTERN:
+ gtk_label_set_pattern (label, g_value_get_string (value));
+ break;
+ case PROP_WRAP:
+ gtk_label_set_line_wrap (label, g_value_get_boolean (value));
+ break;
+ case PROP_SELECTABLE:
+ gtk_label_set_selectable (label, g_value_get_boolean (value));
break;
+ case PROP_MNEMONIC_WIDGET:
+ gtk_label_set_mnemonic_widget (label, (GtkWidget*) g_value_get_object (value));
+ break;
default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-static void
-gtk_label_get_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id)
+static void
+gtk_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
{
GtkLabel *label;
label = GTK_LABEL (object);
- switch (arg_id)
+ switch (prop_id)
{
- case ARG_LABEL:
- GTK_VALUE_STRING (*arg) = g_strdup (label->label);
+ case PROP_LABEL:
+ g_value_set_string (value, label->label);
+ break;
+ case PROP_ATTRIBUTES:
+ g_value_set_boxed (value, label->attrs);
break;
- case ARG_PATTERN:
- GTK_VALUE_STRING (*arg) = g_strdup (label->pattern);
+ case PROP_USE_MARKUP:
+ g_value_set_boolean (value, label->use_markup);
break;
- case ARG_JUSTIFY:
- GTK_VALUE_ENUM (*arg) = label->jtype;
+ case PROP_USE_UNDERLINE:
+ g_value_set_boolean (value, label->use_underline);
+ break;
+ case PROP_JUSTIFY:
+ g_value_set_enum (value, label->jtype);
+ break;
+ case PROP_WRAP:
+ g_value_set_boolean (value, label->wrap);
+ break;
+ case PROP_SELECTABLE:
+ g_value_set_boolean (value, gtk_label_get_selectable (label));
+ break;
+ case PROP_MNEMONIC_KEYVAL:
+ g_value_set_uint (value, label->mnemonic_keyval);
+ break;
+ case PROP_MNEMONIC_WIDGET:
+ g_value_set_object (value, (GObject*) label->mnemonic_widget);
+ break;
+ case PROP_CURSOR_POSITION:
+ if (label->select_info)
+ {
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->select_info->selection_end);
+ g_value_set_int (value, offset);
+ }
+ else
+ g_value_set_int (value, 0);
break;
- case ARG_WRAP:
- GTK_VALUE_BOOL (*arg) = label->wrap;
+ case PROP_SELECTION_BOUND:
+ if (label->select_info)
+ {
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->select_info->selection_anchor);
+ g_value_set_int (value, offset);
+ }
+ else
+ g_value_set_int (value, 0);
break;
+
default:
- arg->type = GTK_TYPE_INVALID;
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GTK_WIDGET_SET_FLAGS (label, GTK_NO_WINDOW);
label->label = NULL;
- label->pattern = NULL;
- label->jtype = GTK_JUSTIFY_CENTER;
+ label->jtype = GTK_JUSTIFY_LEFT;
label->wrap = FALSE;
+
+ label->use_underline = FALSE;
+ label->use_markup = FALSE;
+ label->mnemonic_keyval = GDK_VoidSymbol;
label->layout = NULL;
+ label->text = NULL;
label->attrs = NULL;
+
+ label->mnemonic_widget = NULL;
+ label->mnemonic_window = NULL;
gtk_label_set_text (label, "");
}
+/**
+ * gtk_label_new:
+ * @str: The text of the label
+ *
+ * Creates a new label with the given text inside it. You can
+ * pass %NULL to get an empty label widget.
+ *
+ * Return value: the new #GtkLabel
+ **/
GtkWidget*
gtk_label_new (const gchar *str)
{
GtkLabel *label;
- label = gtk_type_new (GTK_TYPE_LABEL);
+ label = g_object_new (GTK_TYPE_LABEL, NULL);
if (str && *str)
gtk_label_set_text (label, str);
return GTK_WIDGET (label);
}
-static inline void
-gtk_label_set_text_internal (GtkLabel *label,
- gchar *str)
+/**
+ * gtk_label_new_with_mnemonic:
+ * @str: The text of the label, with an underscore in front of the
+ * mnemonic character
+ *
+ * Creates a new #GtkLabel, containing the text in @str.
+ *
+ * If characters in @str are preceded by an underscore, they are
+ * underlined. If you need a literal underscore character in a label, use
+ * '__' (two underscores). The first underlined character represents a
+ * keyboard accelerator called a mnemonic. The mnemonic key can be used
+ * to activate another widget, chosen automatically, or explicitly using
+ * gtk_label_set_mnemonic_widget().
+ *
+ * If gtk_label_set_mnemonic_widget()
+ * is not called, then the first activatable ancestor of the #GtkLabel
+ * will be chosen as the mnemonic widget. For instance, if the
+ * label is inside a button or menu item, the button or menu item will
+ * automatically become the mnemonic widget and be activated by
+ * the mnemonic.
+ *
+ * Return value: the new #GtkLabel
+ **/
+GtkWidget*
+gtk_label_new_with_mnemonic (const gchar *str)
{
- g_free (label->label);
+ GtkLabel *label;
- label->label = str;
-
- gtk_label_clear_layout (label);
+ label = g_object_new (GTK_TYPE_LABEL, NULL);
- gtk_label_select_region_index (label, 0, 0);
+ if (str && *str)
+ gtk_label_set_text_with_mnemonic (label, str);
- gtk_widget_queue_resize (GTK_WIDGET (label));
+ return GTK_WIDGET (label);
}
-void
-gtk_label_set_text (GtkLabel *label,
- const gchar *str)
+static gboolean
+gtk_label_mnemonic_activate (GtkWidget *widget,
+ gboolean group_cycling)
{
- g_return_if_fail (GTK_IS_LABEL (label));
-
- gtk_label_set_text_internal (label, g_strdup (str ? str : ""));
-}
+ GtkWidget *parent;
-/**
- * gtk_label_set_attributes:
- * @label: a #GtkLabel
- * @attrs: a #PangoAttrList
- *
- * Sets a #PangoAttrList; the attributes in the list are applied to the
- * label text.
- **/
-void
-gtk_label_set_attributes (GtkLabel *label,
- PangoAttrList *attrs)
-{
- g_return_if_fail (GTK_IS_LABEL (label));
+ if (GTK_LABEL (widget)->mnemonic_widget)
+ return gtk_widget_mnemonic_activate (GTK_LABEL (widget)->mnemonic_widget, group_cycling);
- if (attrs)
- pango_attr_list_ref (attrs);
+ /* Try to find the widget to activate by traversing the
+ * widget's ancestry.
+ */
+ parent = widget->parent;
+
+ if (parent && GTK_IS_NOTEBOOK (parent))
+ return FALSE;
- if (label->attrs)
- pango_attr_list_unref (label->attrs);
+ while (parent)
+ {
+ if (GTK_WIDGET_CAN_FOCUS (parent) ||
+ (!group_cycling && GTK_WIDGET_GET_CLASS (parent)->activate_signal) ||
+ (parent->parent && GTK_IS_NOTEBOOK (parent->parent)) ||
+ (GTK_IS_MENU_ITEM (parent)))
+ return gtk_widget_mnemonic_activate (parent, group_cycling);
+ parent = parent->parent;
+ }
- label->attrs = attrs;
+ /* barf if there was nothing to activate */
+ g_warning ("Couldn't find a target for a mnemonic activation.");
+ gdk_display_beep (gtk_widget_get_display (widget));
+
+ return FALSE;
}
-static guint
-set_markup (GtkLabel *label,
- const gchar *str,
- gboolean with_uline)
+static void
+gtk_label_setup_mnemonic (GtkLabel *label,
+ guint last_key)
{
- gchar *text = NULL;
- GError *error = NULL;
- PangoAttrList *attrs = NULL;
- gunichar accel_char = 0;
+ GtkWidget *toplevel;
- if (str == NULL)
- str = "";
+ if (last_key != GDK_VoidSymbol && label->mnemonic_window)
+ {
+ gtk_window_remove_mnemonic (label->mnemonic_window,
+ last_key,
+ GTK_WIDGET (label));
+ label->mnemonic_window = NULL;
+ }
- if (!pango_parse_markup (str,
- -1,
- with_uline ? '_' : 0,
- &attrs,
- &text,
- with_uline ? &accel_char : NULL,
- &error))
+ if (label->mnemonic_keyval == GDK_VoidSymbol)
+ return;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (label));
+ if (GTK_WIDGET_TOPLEVEL (toplevel))
{
- g_warning ("Failed to set label from markup due to error parsing markup: %s",
- error->message);
- g_error_free (error);
- return 0;
+ gtk_window_add_mnemonic (GTK_WINDOW (toplevel),
+ label->mnemonic_keyval,
+ GTK_WIDGET (label));
+ label->mnemonic_window = GTK_WINDOW (toplevel);
}
+}
- if (text)
- gtk_label_set_text_internal (label, text);
+static void
+gtk_label_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *old_toplevel)
+{
+ GtkLabel *label = GTK_LABEL (widget);
- if (attrs)
- {
- gtk_label_set_attributes (label, attrs);
- pango_attr_list_unref (attrs);
- }
+ gtk_label_setup_mnemonic (label, label->mnemonic_keyval);
+}
- if (accel_char != 0)
- return gdk_keyval_to_lower (gdk_unicode_to_keyval (accel_char));
- else
- return GDK_VoidSymbol;
+static void
+gtk_label_screen_changed (GtkWidget *widget,
+ GdkScreen *old_screen)
+{
+ gtk_label_clear_layout (GTK_LABEL (widget));
+}
+
+static void
+label_mnemonic_widget_weak_notify (gpointer data,
+ GObject *where_the_object_was)
+{
+ GtkLabel *label = data;
+
+ label->mnemonic_widget = NULL;
+ g_object_notify (G_OBJECT (label), "mnemonic_widget");
}
/**
- * gtk_label_set_markup:
+ * gtk_label_set_mnemonic_widget:
* @label: a #GtkLabel
- * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
- *
- * Parses @str which is marked up with the Pango text markup language,
- * setting the label's text and attribute list based on the parse results.
+ * @widget: the target #GtkWidget
+ *
+ * If the label has been set so that it has an mnemonic key (using
+ * i.e. gtk_label_set_markup_with_mnemonic(),
+ * gtk_label_set_text_with_mnemonic(), gtk_label_new_with_mnemonic()
+ * or the "use_underline" property) the label can be associated with a
+ * widget that is the target of the mnemonic. When the label is inside
+ * a widget (like a #GtkButton or a #GtkNotebook tab) it is
+ * automatically associated with the correct widget, but sometimes
+ * (i.e. when the target is a #GtkEntry next to the label) you need to
+ * set it explicitly using this function.
+ *
+ * The target widget will be accelerated by emitting "mnemonic_activate" on it.
+ * The default handler for this signal will activate the widget if there are no
+ * mnemonic collisions and toggle focus between the colliding widgets otherwise.
**/
void
-gtk_label_set_markup (GtkLabel *label,
- const gchar *str)
-{
+gtk_label_set_mnemonic_widget (GtkLabel *label,
+ GtkWidget *widget)
+{
g_return_if_fail (GTK_IS_LABEL (label));
-
- set_markup (label, str, FALSE);
+ if (widget)
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+
+ if (label->mnemonic_widget)
+ g_object_weak_unref (G_OBJECT (label->mnemonic_widget),
+ label_mnemonic_widget_weak_notify,
+ label);
+ label->mnemonic_widget = widget;
+ if (label->mnemonic_widget)
+ g_object_weak_ref (G_OBJECT (label->mnemonic_widget),
+ label_mnemonic_widget_weak_notify,
+ label);
+
+ g_object_notify (G_OBJECT (label), "mnemonic_widget");
}
/**
- * gtk_label_set_markup_with_accel:
+ * gtk_label_get_mnemonic_widget:
* @label: a #GtkLabel
- * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
- *
- * Parses @str which is marked up with the Pango text markup language,
- * setting the label's text and attribute list based on the parse results.
- * If characters in @str are preceded by an underscore, they are underlined
- * indicating that they represent a keyboard accelerator, and the GDK
- * keyval for the first underlined accelerator is returned. If there are
- * no underlines in the text, GDK_VoidSymbol will be returned.
*
- * Return value: GDK keyval for accelerator
+ * Retrieves the target of the mnemonic (keyboard shortcut) of this
+ * label. See gtk_label_set_mnemonic_widget ().
+ *
+ * Return value: the target of the label's mnemonic, or %NULL if none
+ * has been set and the default algorithm will be used.
**/
-guint
-gtk_label_set_markup_with_accel (GtkLabel *label,
- const gchar *str)
+GtkWidget *
+gtk_label_get_mnemonic_widget (GtkLabel *label)
{
- g_return_val_if_fail (GTK_IS_LABEL (label), GDK_VoidSymbol);
+ g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- return set_markup (label, str, TRUE);
+ return label->mnemonic_widget;
}
/**
- * gtk_label_get_text:
+ * gtk_label_get_mnemonic_keyval:
* @label: a #GtkLabel
- *
- * Fetches the text from a label widget
- *
- * Return value: the text in the label widget. This value must
- * be freed with g_free().
+ *
+ * If the label has been set so that it has an mnemonic key this function
+ * returns the keyval used for the mnemonic accelerator. If there is no
+ * mnemonic set up it returns #GDK_VoidSymbol.
+ *
+ * Returns: GDK keyval usable for accelerators, or #GDK_VoidSymbol
**/
-G_CONST_RETURN gchar *
-gtk_label_get_text (GtkLabel *label)
+guint
+gtk_label_get_mnemonic_keyval (GtkLabel *label)
{
- g_return_val_if_fail (label != NULL, NULL);
- g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
+ g_return_val_if_fail (GTK_IS_LABEL (label), GDK_VoidSymbol);
- return label->label;
+ return label->mnemonic_keyval;
}
-void
-gtk_label_set_pattern (GtkLabel *label,
- const gchar *pattern)
+static void
+gtk_label_set_text_internal (GtkLabel *label,
+ gchar *str)
{
- g_return_if_fail (GTK_IS_LABEL (label));
+ g_free (label->text);
- g_free (label->pattern);
- label->pattern = g_strdup (pattern);
+ label->text = str;
- gtk_widget_queue_resize (GTK_WIDGET (label));
+ gtk_label_select_region_index (label, 0, 0);
}
-void
-gtk_label_set_justify (GtkLabel *label,
- GtkJustification jtype)
+static void
+gtk_label_set_label_internal (GtkLabel *label,
+ gchar *str)
{
- g_return_if_fail (GTK_IS_LABEL (label));
- g_return_if_fail (jtype >= GTK_JUSTIFY_LEFT && jtype <= GTK_JUSTIFY_FILL);
+ g_free (label->label);
- if ((GtkJustification) label->jtype != jtype)
- {
- label->jtype = jtype;
+ label->label = str;
- if (label->layout)
- {
- /* No real need to be this drastic, but easier than duplicating the code */
- g_object_unref (G_OBJECT (label->layout));
- label->layout = NULL;
- }
-
- gtk_widget_queue_resize (GTK_WIDGET (label));
- }
+ g_object_notify (G_OBJECT (label), "label");
}
-void
-gtk_label_set_line_wrap (GtkLabel *label,
- gboolean wrap)
+static void
+gtk_label_set_use_markup_internal (GtkLabel *label,
+ gboolean val)
{
- g_return_if_fail (GTK_IS_LABEL (label));
-
- wrap = wrap != FALSE;
-
- if (label->wrap != wrap)
+ val = val != FALSE;
+ if (label->use_markup != val)
{
- label->wrap = wrap;
-
- gtk_widget_queue_resize (GTK_WIDGET (label));
+ g_object_notify (G_OBJECT (label), "use_markup");
+ label->use_markup = val;
}
}
-void
-gtk_label_get (GtkLabel *label,
- gchar **str)
+static void
+gtk_label_set_use_underline_internal (GtkLabel *label,
+ gboolean val)
{
- g_return_if_fail (label != NULL);
- g_return_if_fail (GTK_IS_LABEL (label));
- g_return_if_fail (str != NULL);
-
- *str = label->label;
+ val = val != FALSE;
+ if (label->use_underline != val)
+ {
+ g_object_notify (G_OBJECT (label), "use_underline");
+ label->use_underline = val;
+ }
}
static void
-gtk_label_finalize (GObject *object)
+gtk_label_set_attributes_internal (GtkLabel *label,
+ PangoAttrList *attrs)
{
- GtkLabel *label;
-
- g_return_if_fail (GTK_IS_LABEL (object));
-
- label = GTK_LABEL (object);
+ if (attrs)
+ pango_attr_list_ref (attrs);
- g_free (label->label);
- g_free (label->pattern);
-
- if (label->layout)
- g_object_unref (G_OBJECT (label->layout));
-
if (label->attrs)
pango_attr_list_unref (label->attrs);
- g_free (label->select_info);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
+ if (!label->use_markup && !label->use_underline)
+ {
+ pango_attr_list_ref (attrs);
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
+ }
+
+ label->attrs = attrs;
+ g_object_notify (G_OBJECT (label), "attributes");
}
+
+/* Calculates text, attrs and mnemonic_keyval from
+ * label, use_underline and use_markup
+ */
static void
-gtk_label_pattern_to_attrs (GtkLabel *label,
- PangoAttrList *attrs)
+gtk_label_recalculate (GtkLabel *label)
{
- if (label->pattern)
+ if (label->use_markup)
+ set_markup (label, label->label, label->use_underline);
+ else
{
- const char *start;
- const char *p = label->label;
- const char *q = label->pattern;
-
- while (1)
+ if (label->use_underline)
+ gtk_label_set_uline_text_internal (label, label->label);
+ else
{
- while (*p && *q && *q != '_')
- {
- p = g_utf8_next_char (p);
- q++;
- }
- start = p;
- while (*p && *q && *q == '_')
- {
- p = g_utf8_next_char (p);
- q++;
- }
-
- if (p > start)
- {
- PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_LOW);
- attr->start_index = start - label->label;
- attr->end_index = p - label->label;
-
- pango_attr_list_insert (attrs, attr);
- }
- else
- break;
+ gtk_label_set_text_internal (label, g_strdup (label->label));
+ if (label->attrs)
+ pango_attr_list_ref (label->attrs);
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = label->attrs;
}
}
-}
-static void
-gtk_label_clear_layout (GtkLabel *label)
-{
- if (label->layout)
+ if (!label->use_underline)
{
- g_object_unref (G_OBJECT (label->layout));
- label->layout = NULL;
+ guint keyval = label->mnemonic_keyval;
+
+ label->mnemonic_keyval = GDK_VoidSymbol;
+ gtk_label_setup_mnemonic (label, keyval);
}
+
+ gtk_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
}
-static void
-gtk_label_ensure_layout (GtkLabel *label,
- gint *widthp,
- gint *heightp)
+/**
+ * gtk_label_set_text:
+ * @label: a #GtkLabel
+ * @str: The text you want to set.
+ *
+ * Sets the text within the #GtkLabel widget. It overwrites any text that
+ * was there before.
+ *
+ * This will also clear any previously set mnemonic accelerators.
+ **/
+void
+gtk_label_set_text (GtkLabel *label,
+ const gchar *str)
{
- GtkWidget *widget;
- PangoRectangle logical_rect;
- gint rwidth, rheight;
-
- widget = GTK_WIDGET (label);
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ g_object_freeze_notify (G_OBJECT (label));
- /*
- * There are a number of conditions which will necessitate re-filling
- * our text:
- *
- * 1. text changed.
- * 2. justification changed either from to to GTK_JUSTIFY_FILL.
- * 3. font changed.
- *
- * These have been detected elsewhere, and label->words will be zero,
- * if one of the above has occured.
- *
- * Additionally, though, if GTK_JUSTIFY_FILL, we need to re-fill if:
- *
- * 4. gtk_widget_set_usize has changed the requested width.
- * 5. gtk_misc_set_padding has changed xpad.
- * 6. maybe others?...
- *
- * Too much of a pain to detect all these case, so always re-fill. I
- * don't think it's really that slow.
- */
+ gtk_label_set_label_internal (label, g_strdup (str ? str : ""));
+ gtk_label_set_use_markup_internal (label, FALSE);
+ gtk_label_set_use_underline_internal (label, FALSE);
+
+ gtk_label_recalculate (label);
- rwidth = label->misc.xpad * 2;
- rheight = label->misc.ypad * 2;
+ g_object_thaw_notify (G_OBJECT (label));
+}
- if (!label->layout)
- {
- PangoAlignment align = PANGO_ALIGN_LEFT; /* Quiet gcc */
- PangoAttrList *attrs = NULL;
+/**
+ * gtk_label_set_attributes:
+ * @label: a #GtkLabel
+ * @attrs: a #PangoAttrList
+ *
+ * Sets a #PangoAttrList; the attributes in the list are applied to the
+ * label text. The attributes set with this function will be ignored
+ * if the "use_underline" property or the "use_markup" property
+ * is %TRUE.
+ **/
+void
+gtk_label_set_attributes (GtkLabel *label,
+ PangoAttrList *attrs)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
- label->layout = gtk_widget_create_pango_layout (widget, label->label);
+ gtk_label_set_attributes_internal (label, attrs);
+
+ gtk_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+}
- /* FIXME move to a model where the pattern isn't stored
- * permanently, and just modifies or creates the AttrList
- */
- if (label->attrs)
- attrs = pango_attr_list_copy (label->attrs);
- else if (label->pattern)
- attrs = pango_attr_list_new ();
+/**
+ * gtk_label_get_attributes:
+ * @label: a #GtkLabel
+ *
+ * Gets the attribute list that was set on the label using
+ * gtk_label_set_attributes(), if any. This function does
+ * not reflect attributes that come from the labels markup
+ * (see gtk_label_set_markup()). If you want to get the
+ * effective attributes for the label, use
+ * pango_layout_get_attribute (gtk_label_get_layout (label)).
+ *
+ * Return value: the attribute list, or %NULL if none was set.
+ **/
+PangoAttrList *
+gtk_label_get_attributes (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- if (label->pattern)
- gtk_label_pattern_to_attrs (label, attrs);
-
- if (attrs)
- {
- pango_layout_set_attributes (label->layout, attrs);
- pango_attr_list_unref (attrs);
- }
-
- switch (label->jtype)
- {
- case GTK_JUSTIFY_LEFT:
- align = PANGO_ALIGN_LEFT;
- break;
- case GTK_JUSTIFY_RIGHT:
- align = PANGO_ALIGN_RIGHT;
- break;
- case GTK_JUSTIFY_CENTER:
- align = PANGO_ALIGN_LEFT;
- break;
- case GTK_JUSTIFY_FILL:
- /* FIXME: This just doesn't work to do this */
- align = PANGO_ALIGN_LEFT;
- pango_layout_set_justify (label->layout, TRUE);
- break;
- default:
- g_assert_not_reached();
- }
+ return label->attrs;
+}
- pango_layout_set_alignment (label->layout, align);
- }
+/**
+ * gtk_label_set_label:
+ * @label: a #GtkLabel
+ * @str: the new text to set for the label
+ *
+ * Sets the text of the label. The label is interpreted as
+ * including embedded underlines and/or Pango markup depending
+ * on the values of label->use_underline and label->use_markup.
+ **/
+void
+gtk_label_set_label (GtkLabel *label,
+ const gchar *str)
+{
+ guint last_keyval;
- if (label->wrap)
- {
- GtkWidgetAuxInfo *aux_info;
- gint longest_paragraph;
- gint width, height;
- gint real_width;
+ g_return_if_fail (GTK_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
- aux_info = gtk_object_get_data (GTK_OBJECT (widget), "gtk-aux-info");
- if (aux_info && aux_info->width > 0)
- {
- pango_layout_set_width (label->layout, aux_info->width * PANGO_SCALE);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ last_keyval = label->mnemonic_keyval;
- rwidth += aux_info->width;
- rheight += PANGO_PIXELS (logical_rect.height);
- }
- else
- {
- pango_layout_set_width (label->layout, -1);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
-
- width = logical_rect.width;
- height = logical_rect.height;
-
- /* Try to guess a reasonable maximum width
- */
- longest_paragraph = width;
-
- width = MIN (width,
- PANGO_SCALE * gdk_string_width (GTK_WIDGET (label)->style->font,
- "This long string gives a good enough length for any line to have."));
- width = MIN (width,
- PANGO_SCALE * (gdk_screen_width () + 1) / 2);
-
- pango_layout_set_width (label->layout, width);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
- real_width = logical_rect.width;
- height = logical_rect.height;
-
- /* Unfortunately, the above may leave us with a very unbalanced looking paragraph,
- * so we try short search for a narrower width that leaves us with the same height
- */
- if (longest_paragraph > 0)
- {
- gint nlines, perfect_width;
+ gtk_label_set_label_internal (label, g_strdup (str));
+ gtk_label_recalculate (label);
+ if (last_keyval != label->mnemonic_keyval)
+ gtk_label_setup_mnemonic (label, last_keyval);
+}
- nlines = pango_layout_get_line_count (label->layout);
- perfect_width = (longest_paragraph + nlines - 1) / nlines;
-
- if (perfect_width < width)
- {
- pango_layout_set_width (label->layout, perfect_width);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
-
- if (logical_rect.height <= height)
- {
- width = perfect_width;
- real_width = logical_rect.width;
- height = logical_rect.height;
- }
- else
- {
- gint mid_width = (perfect_width + width) / 2;
+/**
+ * gtk_label_get_label:
+ * @label: a #GtkLabel
+ *
+ * Fetches the text from a label widget including any embedded
+ * underlines indicating mnemonics and Pango markup. (See
+ * gtk_label_get_text ()).
+ *
+ * Return value: the text of the label widget. This string is
+ * owned by the widget and must not be modified or freed.
+ **/
+G_CONST_RETURN gchar *
+gtk_label_get_label (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- if (mid_width > perfect_width)
- {
- pango_layout_set_width (label->layout, mid_width);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ return label->label;
+}
- if (logical_rect.height <= height)
- {
- width = mid_width;
- real_width = logical_rect.width;
- height = logical_rect.height;
- }
- }
- }
- }
- }
- pango_layout_set_width (label->layout, width);
+static void
+set_markup (GtkLabel *label,
+ const gchar *str,
+ gboolean with_uline)
+{
+ gchar *text = NULL;
+ GError *error = NULL;
+ PangoAttrList *attrs = NULL;
+ gunichar accel_char = 0;
- rwidth += PANGO_PIXELS (real_width);
- rheight += PANGO_PIXELS (height);
- }
- }
- else /* !label->wrap */
+ if (!pango_parse_markup (str,
+ -1,
+ with_uline ? '_' : 0,
+ &attrs,
+ &text,
+ with_uline ? &accel_char : NULL,
+ &error))
{
- pango_layout_set_width (label->layout, -1);
- pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ g_warning ("Failed to set label from markup due to error parsing markup: %s",
+ error->message);
+ g_error_free (error);
+ return;
+ }
- rwidth += PANGO_PIXELS (logical_rect.width);
- rheight += PANGO_PIXELS (logical_rect.height);
+ if (text)
+ gtk_label_set_text_internal (label, text);
+
+ if (attrs)
+ {
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
}
- if (widthp)
- *widthp = rwidth;
+ if (accel_char != 0)
+ label->mnemonic_keyval = gdk_keyval_to_lower (gdk_unicode_to_keyval (accel_char));
+ else
+ label->mnemonic_keyval = GDK_VoidSymbol;
+}
+
+/**
+ * gtk_label_set_markup:
+ * @label: a #GtkLabel
+ * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
+ *
+ * Parses @str which is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>,
+ * setting the label's text and attribute list based on the parse results.
+ **/
+void
+gtk_label_set_markup (GtkLabel *label,
+ const gchar *str)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
- if (heightp)
- *heightp = rheight;
+ gtk_label_set_label_internal (label, g_strdup (str ? str : ""));
+ gtk_label_set_use_markup_internal (label, TRUE);
+ gtk_label_set_use_underline_internal (label, FALSE);
+
+ gtk_label_recalculate (label);
}
-static void
-gtk_label_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+/**
+ * gtk_label_set_markup_with_mnemonic:
+ * @label: a #GtkLabel
+ * @str: a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
+ *
+ * Parses @str which is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>,
+ * setting the label's text and attribute list based on the parse results.
+ * If characters in @str are preceded by an underscore, they are underlined
+ * indicating that they represent a keyboard accelerator called a mnemonic.
+ *
+ * The mnemonic key can be used to activate another widget, chosen automatically,
+ * or explicitly using gtk_label_set_mnemonic_widget().
+ **/
+void
+gtk_label_set_markup_with_mnemonic (GtkLabel *label,
+ const gchar *str)
{
- GtkLabel *label;
- gint width, height;
-
- g_return_if_fail (GTK_IS_LABEL (widget));
- g_return_if_fail (requisition != NULL);
+ guint last_keyval;
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ last_keyval = label->mnemonic_keyval;
+ gtk_label_set_label_internal (label, g_strdup (str ? str : ""));
+ gtk_label_set_use_markup_internal (label, TRUE);
+ gtk_label_set_use_underline_internal (label, TRUE);
- label = GTK_LABEL (widget);
+ gtk_label_recalculate (label);
+ gtk_label_setup_mnemonic (label, last_keyval);
+}
- gtk_label_ensure_layout (label, &width, &height);
+/**
+ * gtk_label_get_text:
+ * @label: a #GtkLabel
+ *
+ * Fetches the text from a label widget, as displayed on the
+ * screen. This does not include any embedded underlines
+ * indicating mnemonics or Pango markup. (See gtk_label_get_label())
+ *
+ * Return value: the text in the label widget. This is the internal
+ * string used by the label, and must not be modified.
+ **/
+G_CONST_RETURN gchar *
+gtk_label_get_text (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- requisition->width = width;
- requisition->height = height;
+ return label->text;
}
-static void
-gtk_label_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
+static PangoAttrList *
+gtk_label_pattern_to_attrs (GtkLabel *label,
+ const gchar *pattern)
{
- GtkLabel *label;
+ const char *start;
+ const char *p = label->text;
+ const char *q = pattern;
+ PangoAttrList *attrs;
- label = GTK_LABEL (widget);
-
- (* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
+ attrs = pango_attr_list_new ();
- if (label->select_info && label->select_info->window)
+ while (1)
{
- gdk_window_move_resize (label->select_info->window,
- allocation->x,
- allocation->y,
- allocation->width,
- allocation->height);
+ while (*p && *q && *q != '_')
+ {
+ p = g_utf8_next_char (p);
+ q++;
+ }
+ start = p;
+ while (*p && *q && *q == '_')
+ {
+ p = g_utf8_next_char (p);
+ q++;
+ }
+
+ if (p > start)
+ {
+ PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_LOW);
+ attr->start_index = start - label->text;
+ attr->end_index = p - label->text;
+
+ pango_attr_list_insert (attrs, attr);
+ }
+ else
+ break;
}
+
+ return attrs;
}
-static void
-gtk_label_style_set (GtkWidget *widget,
- GtkStyle *previous_style)
+static void
+gtk_label_set_pattern_internal (GtkLabel *label,
+ const gchar *pattern)
{
- GtkLabel *label;
+ PangoAttrList *attrs;
+ g_return_if_fail (GTK_IS_LABEL (label));
- g_return_if_fail (GTK_IS_LABEL (widget));
+ attrs = gtk_label_pattern_to_attrs (label, pattern);
+
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
+ label->effective_attrs = attrs;
+}
+
+void
+gtk_label_set_pattern (GtkLabel *label,
+ const gchar *pattern)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
- label = GTK_LABEL (widget);
+ gtk_label_set_pattern_internal (label, pattern);
- /* We have to clear the layout, fonts etc. may have changed */
- gtk_label_clear_layout (label);
+ gtk_label_clear_layout (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
}
-static void
-gtk_label_direction_changed (GtkWidget *widget,
- GtkTextDirection previous_dir)
+
+/**
+ * gtk_label_set_justify:
+ * @label: a #GtkLabel
+ * @jtype: a #GtkJustification
+ *
+ * Sets the alignment of the lines in the text of the label relative to
+ * each other. %GTK_JUSTIFY_LEFT is the default value when the
+ * widget is first created with gtk_label_new(). If you instead want
+ * to set the alignment of the label as a whole, use
+ * gtk_misc_set_alignment() instead. gtk_label_set_justify() has no
+ * effect on labels containing only a single line.
+ **/
+void
+gtk_label_set_justify (GtkLabel *label,
+ GtkJustification jtype)
{
- GtkLabel *label = GTK_LABEL (widget);
+ g_return_if_fail (GTK_IS_LABEL (label));
+ g_return_if_fail (jtype >= GTK_JUSTIFY_LEFT && jtype <= GTK_JUSTIFY_FILL);
+
+ if ((GtkJustification) label->jtype != jtype)
+ {
+ label->jtype = jtype;
- if (label->layout)
- pango_layout_context_changed (label->layout);
+ /* No real need to be this drastic, but easier than duplicating the code */
+ gtk_label_clear_layout (label);
+
+ g_object_notify (G_OBJECT (label), "justify");
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
- GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
+/**
+ * gtk_label_get_justify:
+ * @label: a #GtkLabel
+ *
+ * Returns the justification of the label. See gtk_label_set_justify ().
+ *
+ * Return value: #GtkJustification
+ **/
+GtkJustification
+gtk_label_get_justify (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), 0);
+
+ return label->jtype;
}
-#if 0
-static void
-gtk_label_paint_word (GtkLabel *label,
- gint x,
- gint y,
- GtkLabelWord *word,
- GdkRectangle *area)
+/**
+ * gtk_label_set_line_wrap:
+ * @label: a #GtkLabel
+ * @wrap: the setting
+ *
+ * Toggles line wrapping within the #GtkLabel widget. %TRUE makes it break
+ * lines if text exceeds the widget's size. %FALSE lets the text get cut off
+ * by the edge of the widget if it exceeds the widget size.
+ **/
+void
+gtk_label_set_line_wrap (GtkLabel *label,
+ gboolean wrap)
{
- GtkWidget *widget = GTK_WIDGET (label);
- GtkLabelULine *uline;
- gchar *tmp_str;
+ g_return_if_fail (GTK_IS_LABEL (label));
- tmp_str = gdk_wcstombs (word->beginning);
- if (tmp_str)
+ wrap = wrap != FALSE;
+
+ if (label->wrap != wrap)
{
- gtk_paint_string (widget->style, widget->window, widget->state,
- area, widget, "label",
- x + word->x,
- y + word->y,
- tmp_str);
- g_free (tmp_str);
+ label->wrap = wrap;
+ g_object_notify (G_OBJECT (label), "wrap");
+
+ gtk_widget_queue_resize (GTK_WIDGET (label));
}
+}
+
+/**
+ * gtk_label_get_line_wrap:
+ * @label: a #GtkLabel
+ *
+ * Returns whether lines in the label are automatically wrapped. See gtk_label_set_line_wrap ().
+ *
+ * Return value: %TRUE if the lines of the label are automatically wrapped.
+ */
+gboolean
+gtk_label_get_line_wrap (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
+
+ return label->wrap;
+}
+
+void
+gtk_label_get (GtkLabel *label,
+ gchar **str)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
- for (uline = word->uline; uline; uline = uline->next)
- gtk_paint_hline (widget->style, widget->window,
- widget->state, area,
- widget, "label",
- x + uline->x1, x + uline->x2, y + uline->y);
+ *str = label->text;
}
-#endif
static void
-get_layout_location (GtkLabel *label,
- gint *xp,
- gint *yp)
+gtk_label_destroy (GtkObject *object)
{
- GtkMisc *misc;
- GtkWidget *widget;
- gfloat xalign;
- gint x, y;
-
- misc = GTK_MISC (label);
- widget = GTK_WIDGET (label);
-
- if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
- xalign = misc->xalign;
- else
- xalign = 1.0 - misc->xalign;
-
- x = floor (widget->allocation.x + (gint)misc->xpad
- + ((widget->allocation.width - widget->requisition.width) * xalign)
- + 0.5);
-
- y = floor (widget->allocation.y + (gint)misc->ypad
- + ((widget->allocation.height - widget->requisition.height) * misc->yalign)
- + 0.5);
-
+ GtkLabel *label = GTK_LABEL (object);
- if (xp)
- *xp = x;
+ gtk_label_set_mnemonic_widget (label, NULL);
- if (yp)
- *yp = y;
+ GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
-static gint
-gtk_label_expose (GtkWidget *widget,
- GdkEventExpose *event)
+static void
+gtk_label_finalize (GObject *object)
{
GtkLabel *label;
- gint x, y;
- g_return_val_if_fail (GTK_IS_LABEL (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
+ g_return_if_fail (GTK_IS_LABEL (object));
- label = GTK_LABEL (widget);
-
- gtk_label_ensure_layout (label, NULL, NULL);
+ label = GTK_LABEL (object);
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) &&
- label->label && (*label->label != '\0'))
- {
- get_layout_location (label, &x, &y);
-
- gtk_paint_layout (widget->style,
- widget->window,
- GTK_WIDGET_STATE (widget),
- &event->area,
- widget,
- "label",
- x, y,
- label->layout);
-
- if (label->select_info &&
- (label->select_info->selection_anchor !=
- label->select_info->selection_end))
- {
- gint range[2];
- GdkRegion *clip;
-
- range[0] = label->select_info->selection_anchor;
- range[1] = label->select_info->selection_end;
+ g_free (label->label);
+ g_free (label->text);
- if (range[0] > range[1])
- {
- gint tmp = range[0];
- range[0] = range[1];
- range[1] = tmp;
- }
+ if (label->layout)
+ g_object_unref (label->layout);
- clip = gdk_pango_layout_get_clip_region (label->layout,
- x, y,
- range,
- 1);
+ if (label->attrs)
+ pango_attr_list_unref (label->attrs);
- /* FIXME should use gtk_paint, but it can't use a clip
- * region
- */
+ if (label->effective_attrs)
+ pango_attr_list_unref (label->effective_attrs);
- gdk_gc_set_clip_region (widget->style->white_gc, clip);
-
- gdk_draw_layout_with_colors (widget->window,
- widget->style->white_gc,
- x, y,
- label->layout,
- &widget->style->fg[GTK_STATE_SELECTED],
- &widget->style->bg[GTK_STATE_SELECTED]);
+ g_free (label->select_info);
- gdk_gc_set_clip_region (widget->style->white_gc, NULL);
- gdk_region_destroy (clip);
- }
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gtk_label_clear_layout (GtkLabel *label)
+{
+ if (label->layout)
+ {
+ g_object_unref (label->layout);
+ label->layout = NULL;
}
+}
- return TRUE;
+typedef struct _LabelWrapWidth LabelWrapWidth;
+struct _LabelWrapWidth
+{
+ gint width;
+ PangoFontDescription *font_desc;
+};
+
+static void
+label_wrap_width_free (gpointer data)
+{
+ LabelWrapWidth *wrap_width = data;
+ pango_font_description_free (wrap_width->font_desc);
+ g_free (wrap_width);
}
-guint
-gtk_label_parse_uline (GtkLabel *label,
- const gchar *str)
+static gint
+get_label_wrap_width (GtkLabel *label)
{
- guint accel_key = GDK_VoidSymbol;
+ PangoLayout *layout;
+ GtkStyle *style = GTK_WIDGET (label)->style;
- gchar *new_str;
- gchar *pattern;
- const gchar *src;
- gchar *dest, *pattern_dest;
- gboolean underscore;
-
- g_return_val_if_fail (GTK_IS_LABEL (label), GDK_VoidSymbol);
- g_return_val_if_fail (str != NULL, GDK_VoidSymbol);
+ LabelWrapWidth *wrap_width = g_object_get_data (G_OBJECT (style), "gtk-label-wrap-width");
+ if (!wrap_width)
+ {
+ wrap_width = g_new0 (LabelWrapWidth, 1);
+ g_object_set_data_full (G_OBJECT (style), "gtk-label-wrap-width",
+ wrap_width, label_wrap_width_free);
+ }
- /* Convert text to wide characters */
+ if (wrap_width->font_desc && pango_font_description_equal (wrap_width->font_desc, style->font_desc))
+ return wrap_width->width;
- new_str = g_new (gchar, strlen (str) + 1);
- pattern = g_new (gchar, g_utf8_strlen (str, -1) + 1);
-
- underscore = FALSE;
+ if (wrap_width->font_desc)
+ pango_font_description_free (wrap_width->font_desc);
- src = str;
- dest = new_str;
- pattern_dest = pattern;
-
- while (*src)
+ wrap_width->font_desc = pango_font_description_copy (style->font_desc);
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (label),
+ "This long string gives a good enough length for any line to have.");
+ pango_layout_get_size (layout, &wrap_width->width, NULL);
+ g_object_unref (layout);
+
+ return wrap_width->width;
+}
+
+static void
+gtk_label_ensure_layout (GtkLabel *label)
+{
+ GtkWidget *widget;
+ PangoRectangle logical_rect;
+ gint rwidth, rheight;
+
+ widget = GTK_WIDGET (label);
+
+ rwidth = label->misc.xpad * 2;
+ rheight = label->misc.ypad * 2;
+
+ if (!label->layout)
{
- gunichar c;
- gchar *next_src;
+ PangoAlignment align = PANGO_ALIGN_LEFT; /* Quiet gcc */
- c = g_utf8_get_char (src);
- if (c == (gunichar)-1)
+ label->layout = gtk_widget_create_pango_layout (widget, label->text);
+
+ if (label->effective_attrs)
+ pango_layout_set_attributes (label->layout, label->effective_attrs);
+
+ switch (label->jtype)
{
- g_warning ("Invalid input string");
- g_free (new_str);
+ case GTK_JUSTIFY_LEFT:
+ align = PANGO_ALIGN_LEFT;
+ break;
+ case GTK_JUSTIFY_RIGHT:
+ align = PANGO_ALIGN_RIGHT;
+ break;
+ case GTK_JUSTIFY_CENTER:
+ align = PANGO_ALIGN_CENTER;
+ break;
+ case GTK_JUSTIFY_FILL:
+ /* FIXME: This just doesn't work to do this */
+ align = PANGO_ALIGN_LEFT;
+ pango_layout_set_justify (label->layout, TRUE);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+
+ pango_layout_set_alignment (label->layout, align);
+
+ if (label->wrap)
+ {
+ GtkWidgetAuxInfo *aux_info;
+ gint longest_paragraph;
+ gint width, height;
+
+ aux_info = _gtk_widget_get_aux_info (widget, FALSE);
+ if (aux_info && aux_info->width > 0)
+ pango_layout_set_width (label->layout, aux_info->width * PANGO_SCALE);
+ else
+ {
+ GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (label));
+ gint wrap_width;
+
+ pango_layout_set_width (label->layout, -1);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ width = logical_rect.width;
+
+ /* Try to guess a reasonable maximum width */
+ longest_paragraph = width;
+
+ wrap_width = get_label_wrap_width (label);
+ width = MIN (width, wrap_width);
+ width = MIN (width,
+ PANGO_SCALE * (gdk_screen_get_width (screen) + 1) / 2);
+
+ pango_layout_set_width (label->layout, width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ width = logical_rect.width;
+ height = logical_rect.height;
+
+ /* Unfortunately, the above may leave us with a very unbalanced looking paragraph,
+ * so we try short search for a narrower width that leaves us with the same height
+ */
+ if (longest_paragraph > 0)
+ {
+ gint nlines, perfect_width;
+
+ nlines = pango_layout_get_line_count (label->layout);
+ perfect_width = (longest_paragraph + nlines - 1) / nlines;
+
+ if (perfect_width < width)
+ {
+ pango_layout_set_width (label->layout, perfect_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ else
+ {
+ gint mid_width = (perfect_width + width) / 2;
+
+ if (mid_width > perfect_width)
+ {
+ pango_layout_set_width (label->layout, mid_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ }
+ }
+ }
+ }
+ pango_layout_set_width (label->layout, width);
+ }
+ }
+ else /* !label->wrap */
+ pango_layout_set_width (label->layout, -1);
+ }
+}
+
+static void
+gtk_label_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ GtkLabel *label;
+ gint width, height;
+ PangoRectangle logical_rect;
+ GtkWidgetAuxInfo *aux_info;
+
+ g_return_if_fail (GTK_IS_LABEL (widget));
+ g_return_if_fail (requisition != NULL);
+
+ label = GTK_LABEL (widget);
+
+ /*
+ * If word wrapping is on, then the height requisition can depend
+ * on:
+ *
+ * - Any width set on the widget via gtk_widget_set_usize().
+ * - The padding of the widget (xpad, set by gtk_misc_set_padding)
+ *
+ * Instead of trying to detect changes to these quantities, if we
+ * are wrapping, we just rewrap for each size request. Since
+ * size requisitions are cached by the GTK+ core, this is not
+ * expensive.
+ */
+
+ if (label->wrap)
+ gtk_label_clear_layout (label);
+
+ gtk_label_ensure_layout (label);
+
+ width = label->misc.xpad * 2;
+ height = label->misc.ypad * 2;
+
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ aux_info = _gtk_widget_get_aux_info (widget, FALSE);
+ if (label->wrap && aux_info && aux_info->width > 0)
+ width += aux_info->width;
+ else
+ width += PANGO_PIXELS (logical_rect.width);
+
+ height += PANGO_PIXELS (logical_rect.height);
+
+ requisition->width = width;
+ requisition->height = height;
+}
+
+static void
+gtk_label_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
+
+ if (label->select_info && label->select_info->window)
+ {
+ gdk_window_move_resize (label->select_info->window,
+ allocation->x,
+ allocation->y,
+ allocation->width,
+ allocation->height);
+ }
+}
+
+static void
+gtk_label_state_changed (GtkWidget *widget,
+ GtkStateType prev_state)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ if (label->select_info)
+ gtk_label_select_region (label, 0, 0);
+
+ if (GTK_WIDGET_CLASS (parent_class)->state_changed)
+ GTK_WIDGET_CLASS (parent_class)->state_changed (widget, prev_state);
+}
+
+static void
+gtk_label_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ GtkLabel *label;
+
+ g_return_if_fail (GTK_IS_LABEL (widget));
+
+ label = GTK_LABEL (widget);
+
+ /* We have to clear the layout, fonts etc. may have changed */
+ gtk_label_clear_layout (label);
+}
+
+static void
+gtk_label_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_dir)
+{
+ GtkLabel *label = GTK_LABEL (widget);
+
+ if (label->layout)
+ pango_layout_context_changed (label->layout);
+
+ GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
+}
+
+#if 0
+static void
+gtk_label_paint_word (GtkLabel *label,
+ gint x,
+ gint y,
+ GtkLabelWord *word,
+ GdkRectangle *area)
+{
+ GtkWidget *widget = GTK_WIDGET (label);
+ GtkLabelULine *uline;
+ gchar *tmp_str;
+
+ tmp_str = gdk_wcstombs (word->beginning);
+ if (tmp_str)
+ {
+ gtk_paint_string (widget->style, widget->window, widget->state,
+ area, widget, "label",
+ x + word->x,
+ y + word->y,
+ tmp_str);
+ g_free (tmp_str);
+ }
+
+ for (uline = word->uline; uline; uline = uline->next)
+ gtk_paint_hline (widget->style, widget->window,
+ widget->state, area,
+ widget, "label",
+ x + uline->x1, x + uline->x2, y + uline->y);
+}
+#endif
+
+static void
+get_layout_location (GtkLabel *label,
+ gint *xp,
+ gint *yp)
+{
+ GtkMisc *misc;
+ GtkWidget *widget;
+ gfloat xalign;
+ gint x, y;
+
+ misc = GTK_MISC (label);
+ widget = GTK_WIDGET (label);
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+ xalign = misc->xalign;
+ else
+ xalign = 1.0 - misc->xalign;
+
+ x = floor (widget->allocation.x + (gint)misc->xpad +
+ xalign * (widget->allocation.width - widget->requisition.width)
+ + 0.5);
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+ x = MAX (x, widget->allocation.x + misc->xpad);
+ else
+ x = MIN (x,
+ widget->allocation.x + widget->allocation.width -
+ widget->requisition.width - misc->xpad);
+
+ y = floor (widget->allocation.y + (gint)misc->ypad
+ + MAX (((widget->allocation.height - widget->requisition.height) * misc->yalign)
+ + 0.5, 0));
+
+ if (xp)
+ *xp = x;
+
+ if (yp)
+ *yp = y;
+}
+
+static void
+gtk_label_draw_cursor (GtkLabel *label, gint xoffset, gint yoffset)
+{
+ if (label->select_info == NULL)
+ return;
+
+ if (GTK_WIDGET_DRAWABLE (label))
+ {
+ GtkWidget *widget = GTK_WIDGET (label);
+
+ GtkTextDirection keymap_direction;
+ GtkTextDirection widget_direction;
+ PangoRectangle strong_pos, weak_pos;
+ gboolean split_cursor;
+ PangoRectangle *cursor1 = NULL;
+ PangoRectangle *cursor2 = NULL;
+ GdkRectangle cursor_location;
+ GtkTextDirection dir1 = GTK_TEXT_DIR_NONE;
+ GtkTextDirection dir2 = GTK_TEXT_DIR_NONE;
+ GdkGC *gc;
+
+ keymap_direction =
+ (gdk_keymap_get_direction (gdk_keymap_get_for_display (gtk_widget_get_display (widget))) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+
+ widget_direction = gtk_widget_get_direction (widget);
+
+ gtk_label_ensure_layout (label);
+
+ pango_layout_get_cursor_pos (label->layout, label->select_info->selection_end,
+ &strong_pos, &weak_pos);
+
+ g_object_get (gtk_widget_get_settings (widget),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ dir1 = widget_direction;
+
+ if (split_cursor)
+ {
+ cursor1 = &strong_pos;
+
+ if (strong_pos.x != weak_pos.x ||
+ strong_pos.y != weak_pos.y)
+ {
+ dir2 = (widget_direction == GTK_TEXT_DIR_LTR) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR;
+ cursor2 = &weak_pos;
+ }
+ }
+ else
+ {
+ if (keymap_direction == widget_direction)
+ cursor1 = &strong_pos;
+ else
+ cursor1 = &weak_pos;
+ }
+
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor1->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor1->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor1->height);
+
+ gc = _gtk_get_insertion_cursor_gc (widget, TRUE);
+ _gtk_draw_insertion_cursor (widget, widget->window, gc,
+ &cursor_location, dir1,
+ dir2 != GTK_TEXT_DIR_NONE);
+ g_object_unref (gc);
+
+ if (dir2 != GTK_TEXT_DIR_NONE)
+ {
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor2->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor2->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor2->height);
+
+ gc = _gtk_get_insertion_cursor_gc (widget, FALSE);
+ _gtk_draw_insertion_cursor (widget, widget->window, gc,
+ &cursor_location, dir2, TRUE);
+ g_object_unref (gc);
+ }
+ }
+}
+
+
+static gint
+gtk_label_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ GtkLabel *label;
+ gint x, y;
+
+ g_return_val_if_fail (GTK_IS_LABEL (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ label = GTK_LABEL (widget);
+
+ gtk_label_ensure_layout (label);
+
+ if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) &&
+ label->text && (*label->text != '\0'))
+ {
+ get_layout_location (label, &x, &y);
+
+ gtk_paint_layout (widget->style,
+ widget->window,
+ GTK_WIDGET_STATE (widget),
+ FALSE,
+ &event->area,
+ widget,
+ "label",
+ x, y,
+ label->layout);
+
+ if (label->select_info &&
+ (label->select_info->selection_anchor !=
+ label->select_info->selection_end))
+ {
+ gint range[2];
+ GdkRegion *clip;
+ GtkStateType state;
+
+ range[0] = label->select_info->selection_anchor;
+ range[1] = label->select_info->selection_end;
+
+ if (range[0] > range[1])
+ {
+ gint tmp = range[0];
+ range[0] = range[1];
+ range[1] = tmp;
+ }
+
+ clip = gdk_pango_layout_get_clip_region (label->layout,
+ x, y,
+ range,
+ 1);
+
+ /* FIXME should use gtk_paint, but it can't use a clip
+ * region
+ */
+
+ gdk_gc_set_clip_region (widget->style->black_gc, clip);
+
+
+ state = GTK_STATE_SELECTED;
+ if (!GTK_WIDGET_HAS_FOCUS (widget))
+ state = GTK_STATE_ACTIVE;
+
+ gdk_draw_layout_with_colors (widget->window,
+ widget->style->black_gc,
+ x, y,
+ label->layout,
+ &widget->style->text[state],
+ &widget->style->base[state]);
+
+ gdk_gc_set_clip_region (widget->style->black_gc, NULL);
+ gdk_region_destroy (clip);
+ }
+ else if (label->select_info && GTK_WIDGET_HAS_FOCUS (widget))
+ gtk_label_draw_cursor (label, x, y);
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_label_set_uline_text_internal (GtkLabel *label,
+ const gchar *str)
+{
+ guint accel_key = GDK_VoidSymbol;
+
+ gchar *new_str;
+ gchar *pattern;
+ const gchar *src;
+ gchar *dest, *pattern_dest;
+ gboolean underscore;
+
+ g_return_if_fail (GTK_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ /* Split text into the base text and a separate pattern
+ * of underscores.
+ */
+
+ new_str = g_new (gchar, strlen (str) + 1);
+ pattern = g_new (gchar, g_utf8_strlen (str, -1) + 1);
+
+ underscore = FALSE;
+
+ if (str == NULL)
+ str = "";
+
+ src = str;
+ dest = new_str;
+ pattern_dest = pattern;
+
+ while (*src)
+ {
+ gunichar c;
+ gchar *next_src;
+
+ c = g_utf8_get_char (src);
+ if (c == (gunichar)-1)
+ {
+ g_warning ("Invalid input string");
+ g_free (new_str);
g_free (pattern);
- return GDK_VoidSymbol;
+ return;
+ }
+ next_src = g_utf8_next_char (src);
+
+ if (underscore)
+ {
+ if (c == '_')
+ *pattern_dest++ = ' ';
+ else
+ {
+ *pattern_dest++ = '_';
+ if (accel_key == GDK_VoidSymbol)
+ accel_key = gdk_keyval_to_lower (gdk_unicode_to_keyval (c));
+ }
+
+ while (src < next_src)
+ *dest++ = *src++;
+
+ underscore = FALSE;
+ }
+ else
+ {
+ if (c == '_')
+ {
+ underscore = TRUE;
+ src = next_src;
+ }
+ else
+ {
+ while (src < next_src)
+ *dest++ = *src++;
+
+ *pattern_dest++ = ' ';
+ }
+ }
+ }
+ *dest = 0;
+ *pattern_dest = 0;
+
+ gtk_label_set_text_internal (label, new_str);
+ gtk_label_set_pattern_internal (label, pattern);
+
+ g_free (pattern);
+
+ label->mnemonic_keyval = accel_key;
+}
+
+guint
+gtk_label_parse_uline (GtkLabel *label,
+ const gchar *str)
+{
+ guint keyval;
+ guint orig_keyval;
+
+ g_return_val_if_fail (GTK_IS_LABEL (label), GDK_VoidSymbol);
+ g_return_val_if_fail (str != NULL, GDK_VoidSymbol);
+
+ orig_keyval = label->mnemonic_keyval;
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ gtk_label_set_label_internal (label, g_strdup (str ? str : ""));
+ gtk_label_set_use_markup_internal (label, FALSE);
+ gtk_label_set_use_underline_internal (label, TRUE);
+
+ gtk_label_recalculate (label);
+
+ keyval = label->mnemonic_keyval;
+ label->mnemonic_keyval = GDK_VoidSymbol;
+
+ gtk_label_setup_mnemonic (label, orig_keyval);
+
+ g_object_thaw_notify (G_OBJECT (label));
+
+ return keyval;
+}
+
+/**
+ * gtk_label_set_text_with_mnemonic:
+ * @label: a #GtkLabel
+ * @str: a string
+ *
+ * Sets the label's text from the string @str.
+ * If characters in @str are preceded by an underscore, they are underlined
+ * indicating that they represent a keyboard accelerator called a mnemonic.
+ * The mnemonic key can be used to activate another widget, chosen automatically,
+ * or explicitly using gtk_label_set_mnemonic_widget().
+ **/
+void
+gtk_label_set_text_with_mnemonic (GtkLabel *label,
+ const gchar *str)
+{
+ guint last_keyval;
+
+ g_return_if_fail (GTK_IS_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ last_keyval = label->mnemonic_keyval;
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ gtk_label_set_label_internal (label, g_strdup (str ? str : ""));
+ gtk_label_set_use_markup_internal (label, FALSE);
+ gtk_label_set_use_underline_internal (label, TRUE);
+
+ gtk_label_recalculate (label);
+
+ gtk_label_setup_mnemonic (label, last_keyval);
+
+ g_object_thaw_notify (G_OBJECT (label));
+}
+
+static void
+gtk_label_realize (GtkWidget *widget)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+
+ if (label->select_info)
+ gtk_label_create_window (label);
+}
+
+static void
+gtk_label_unrealize (GtkWidget *widget)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ if (label->select_info)
+ gtk_label_destroy_window (label);
+
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+}
+
+static void
+gtk_label_map (GtkWidget *widget)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ (* GTK_WIDGET_CLASS (parent_class)->map) (widget);
+
+ if (label->select_info)
+ gdk_window_show (label->select_info->window);
+}
+
+static void
+gtk_label_unmap (GtkWidget *widget)
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
+
+ if (label->select_info)
+ gdk_window_hide (label->select_info->window);
+
+ (* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
+}
+
+static void
+window_to_layout_coords (GtkLabel *label,
+ gint *x,
+ gint *y)
+{
+ gint lx, ly;
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (label);
+
+ /* get layout location in widget->window coords */
+ get_layout_location (label, &lx, &ly);
+
+ if (x)
+ {
+ *x += widget->allocation.x; /* go to widget->window */
+ *x -= lx; /* go to layout */
+ }
+
+ if (y)
+ {
+ *y += widget->allocation.y; /* go to widget->window */
+ *y -= ly; /* go to layout */
+ }
+}
+
+#if 0
+static void
+layout_to_window_coords (GtkLabel *label,
+ gint *x,
+ gint *y)
+{
+ gint lx, ly;
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (label);
+
+ /* get layout location in widget->window coords */
+ get_layout_location (label, &lx, &ly);
+
+ if (x)
+ {
+ *x += lx; /* go to widget->window */
+ *x -= widget->allocation.x; /* go to selection window */
+ }
+
+ if (y)
+ {
+ *y += ly; /* go to widget->window */
+ *y -= widget->allocation.y; /* go to selection window */
+ }
+}
+#endif
+
+static void
+get_layout_index (GtkLabel *label,
+ gint x,
+ gint y,
+ gint *index)
+{
+ gint trailing = 0;
+ const gchar *cluster;
+ const gchar *cluster_end;
+
+ *index = 0;
+
+ gtk_label_ensure_layout (label);
+
+ window_to_layout_coords (label, &x, &y);
+
+ x *= PANGO_SCALE;
+ y *= PANGO_SCALE;
+
+ pango_layout_xy_to_index (label->layout,
+ x, y,
+ index, &trailing);
+
+
+ cluster = label->text + *index;
+ cluster_end = cluster;
+ while (trailing)
+ {
+ cluster_end = g_utf8_next_char (cluster_end);
+ --trailing;
+ }
+
+ *index += (cluster_end - cluster);
+}
+
+static void
+gtk_label_select_word (GtkLabel *label)
+{
+ gint min, max;
+
+ gint start_index = gtk_label_move_backward_word (label, label->select_info->selection_end);
+ gint end_index = gtk_label_move_forward_word (label, label->select_info->selection_end);
+
+ min = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ max = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ min = MIN (min, start_index);
+ max = MAX (max, end_index);
+
+ gtk_label_select_region_index (label, min, max);
+}
+
+static gint
+gtk_label_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkLabel *label;
+ gint index = 0;
+
+ label = GTK_LABEL (widget);
+
+ if (label->select_info == NULL)
+ return FALSE;
+
+ if (event->button == 1)
+ {
+ if (!GTK_WIDGET_HAS_FOCUS (widget))
+ gtk_widget_grab_focus (widget);
+
+ if (event->type == GDK_3BUTTON_PRESS)
+ {
+ gtk_label_select_region_index (label, 0, strlen (label->text));
+ return TRUE;
}
- next_src = g_utf8_next_char (src);
- if (underscore)
+ if (event->type == GDK_2BUTTON_PRESS)
{
- if (c == '_')
- *pattern_dest++ = ' ';
- else
+ gtk_label_select_word (label);
+ return TRUE;
+ }
+
+ get_layout_index (label, event->x, event->y, &index);
+
+ if ((label->select_info->selection_anchor !=
+ label->select_info->selection_end) &&
+ (event->state & GDK_SHIFT_MASK))
+ {
+ gint min, max;
+
+ /* extend (same as motion) */
+ min = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ max = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ min = MIN (min, index);
+ max = MAX (max, index);
+
+ /* ensure the anchor is opposite index */
+ if (index == min)
{
- *pattern_dest++ = '_';
- if (accel_key == GDK_VoidSymbol)
- accel_key = gdk_keyval_to_lower (c);
+ gint tmp = min;
+ min = max;
+ max = tmp;
}
-
- while (src < next_src)
- *dest++ = *src++;
- underscore = FALSE;
+ gtk_label_select_region_index (label, min, max);
}
else
{
- if (c == '_')
- {
- underscore = TRUE;
- src = next_src;
- }
- else
- {
- while (src < next_src)
- *dest++ = *src++;
-
- *pattern_dest++ = ' ';
- }
+ if (event->type == GDK_3BUTTON_PRESS)
+ gtk_label_select_region_index (label, 0, strlen (label->text));
+ else if (event->type == GDK_2BUTTON_PRESS)
+ gtk_label_select_word (label);
+ else
+ /* start a replacement */
+ gtk_label_select_region_index (label, index, index);
}
+
+ return TRUE;
}
- *dest = 0;
- *pattern_dest = 0;
+ else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
+ {
+ gtk_label_do_popup (label, event);
+
+ return TRUE;
+
+ }
+ return FALSE;
+}
+
+static gint
+gtk_label_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+
+{
+ GtkLabel *label;
+
+ label = GTK_LABEL (widget);
- gtk_label_set_text_internal (label, new_str);
- gtk_label_set_pattern (label, pattern);
+ if (label->select_info == NULL)
+ return FALSE;
- g_free (pattern);
+ if (event->button != 1)
+ return FALSE;
+
+ /* The goal here is to return TRUE iff we ate the
+ * button press to start selecting.
+ */
- return accel_key;
+ return TRUE;
}
-static void
-gtk_label_realize (GtkWidget *widget)
+static gint
+gtk_label_motion (GtkWidget *widget,
+ GdkEventMotion *event)
{
GtkLabel *label;
-
+ gint index;
+ gint x, y;
+
label = GTK_LABEL (widget);
- (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+ if (label->select_info == NULL)
+ return FALSE;
- if (label->select_info)
- gtk_label_create_window (label);
+ if ((event->state & GDK_BUTTON1_MASK) == 0)
+ return FALSE;
+
+ gdk_window_get_pointer (label->select_info->window,
+ &x, &y, NULL);
+
+ get_layout_index (label, x, y, &index);
+
+ gtk_label_select_region_index (label,
+ label->select_info->selection_anchor,
+ index);
+
+ return TRUE;
}
static void
-gtk_label_unrealize (GtkWidget *widget)
+gtk_label_create_window (GtkLabel *label)
+{
+ GtkWidget *widget;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ g_assert (label->select_info);
+ g_assert (GTK_WIDGET_REALIZED (label));
+
+ if (label->select_info->window)
+ return;
+
+ widget = GTK_WIDGET (label);
+
+ attributes.x = widget->allocation.x;
+ attributes.y = widget->allocation.y;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->allocation.height;
+ attributes.window_type = GDK_WINDOW_TEMP;
+ attributes.wclass = GDK_INPUT_ONLY;
+ attributes.override_redirect = TRUE;
+ attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
+ GDK_XTERM);
+ attributes.event_mask = gtk_widget_get_events (widget) |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_BUTTON_MOTION_MASK;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR | GDK_WA_CURSOR;
+
+ label->select_info->window = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (label->select_info->window, widget);
+
+ gdk_cursor_unref (attributes.cursor);
+}
+
+static void
+gtk_label_destroy_window (GtkLabel *label)
+{
+ g_assert (label->select_info);
+
+ if (label->select_info->window == NULL)
+ return;
+
+ gdk_window_set_user_data (label->select_info->window, NULL);
+ gdk_window_destroy (label->select_info->window);
+ label->select_info->window = NULL;
+}
+
+/**
+ * gtk_label_set_selectable:
+ * @label: a #GtkLabel
+ * @setting: %TRUE to allow selecting text in the label
+ *
+ * Selectable labels allow the user to select text from the label, for
+ * copy-and-paste.
+ *
+ **/
+void
+gtk_label_set_selectable (GtkLabel *label,
+ gboolean setting)
+{
+ gboolean old_setting;
+
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ setting = setting != FALSE;
+ old_setting = label->select_info != NULL;
+
+ if (setting)
+ {
+ if (label->select_info == NULL)
+ {
+ label->select_info = g_new0 (GtkLabelSelectionInfo, 1);
+
+ GTK_WIDGET_SET_FLAGS (label, GTK_CAN_FOCUS);
+
+ if (GTK_WIDGET_REALIZED (label))
+ gtk_label_create_window (label);
+
+ if (GTK_WIDGET_MAPPED (label))
+ gdk_window_show (label->select_info->window);
+ }
+ }
+ else
+ {
+ if (label->select_info)
+ {
+ /* unselect, to give up the selection */
+ gtk_label_select_region (label, 0, 0);
+
+ if (label->select_info->window)
+ {
+ gtk_label_destroy_window (label);
+ }
+
+ g_free (label->select_info);
+
+ label->select_info = NULL;
+
+ GTK_WIDGET_UNSET_FLAGS (label, GTK_CAN_FOCUS);
+ }
+ }
+ if (setting != old_setting)
+ {
+ g_object_freeze_notify (G_OBJECT (label));
+ g_object_notify (G_OBJECT (label), "selectable");
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ g_object_thaw_notify (G_OBJECT (label));
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * gtk_label_get_selectable:
+ * @label: a #GtkLabel
+ *
+ * Gets the value set by gtk_label_set_selectable().
+ *
+ * Return value: %TRUE if the user can copy text from the label
+ **/
+gboolean
+gtk_label_get_selectable (GtkLabel *label)
{
- GtkLabel *label;
-
- label = GTK_LABEL (widget);
+ g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- if (label->select_info)
- gtk_label_destroy_window (label);
-
- (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+ return label->select_info != NULL;
}
static void
-gtk_label_map (GtkWidget *widget)
+get_text_callback (GtkClipboard *clipboard,
+ GtkSelectionData *selection_data,
+ guint info,
+ gpointer user_data_or_owner)
{
GtkLabel *label;
-
- label = GTK_LABEL (widget);
- (* GTK_WIDGET_CLASS (parent_class)->map) (widget);
+ label = GTK_LABEL (user_data_or_owner);
- if (label->select_info)
- gdk_window_show (label->select_info->window);
+ if ((label->select_info->selection_anchor !=
+ label->select_info->selection_end) &&
+ label->text)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ end = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ gtk_selection_data_set_text (selection_data,
+ label->text + start,
+ end - start);
+ }
}
static void
-gtk_label_unmap (GtkWidget *widget)
+clear_text_callback (GtkClipboard *clipboard,
+ gpointer user_data_or_owner)
{
GtkLabel *label;
- label = GTK_LABEL (widget);
+ label = GTK_LABEL (user_data_or_owner);
if (label->select_info)
- gdk_window_hide (label->select_info->window);
-
- (* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
+ {
+ label->select_info->selection_anchor = label->select_info->selection_end;
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+ }
}
static void
-window_to_layout_coords (GtkLabel *label,
- gint *x,
- gint *y)
+gtk_label_select_region_index (GtkLabel *label,
+ gint anchor_index,
+ gint end_index)
{
- gint lx, ly;
- GtkWidget *widget;
+ static const GtkTargetEntry targets[] = {
+ { "STRING", 0, 0 },
+ { "TEXT", 0, 0 },
+ { "COMPOUND_TEXT", 0, 0 },
+ { "UTF8_STRING", 0, 0 }
+ };
- widget = GTK_WIDGET (label);
-
- /* get layout location in widget->window coords */
- get_layout_location (label, &lx, &ly);
+ g_return_if_fail (GTK_IS_LABEL (label));
- if (x)
+ if (label->select_info)
{
- *x += widget->allocation.x; /* go to widget->window */
- *x -= lx; /* go to layout */
+ GtkClipboard *clipboard;
+
+ if (label->select_info->selection_anchor == anchor_index &&
+ label->select_info->selection_end == end_index)
+ return;
+
+ label->select_info->selection_anchor = anchor_index;
+ label->select_info->selection_end = end_index;
+
+ clipboard = gtk_widget_get_clipboard (GTK_WIDGET (label),
+ GDK_SELECTION_PRIMARY);
+
+ if (anchor_index != end_index)
+ {
+ gtk_clipboard_set_with_owner (clipboard,
+ targets,
+ G_N_ELEMENTS (targets),
+ get_text_callback,
+ clear_text_callback,
+ G_OBJECT (label));
+ }
+ else
+ {
+ if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (label))
+ gtk_clipboard_clear (clipboard);
+ }
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+
+ g_object_freeze_notify (G_OBJECT (label));
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ g_object_thaw_notify (G_OBJECT (label));
}
+}
- if (y)
+/**
+ * gtk_label_select_region:
+ * @label: a #GtkLabel
+ * @start_offset: start offset (in characters not bytes)
+ * @end_offset: end offset (in characters not bytes)
+ *
+ * Selects a range of characters in the label, if the label is selectable.
+ * See gtk_label_set_selectable(). If the label is not selectable,
+ * this function has no effect. If @start_offset or
+ * @end_offset are -1, then the end of the label will be substituted.
+ *
+ **/
+void
+gtk_label_select_region (GtkLabel *label,
+ gint start_offset,
+ gint end_offset)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ if (label->text && label->select_info)
{
- *y += widget->allocation.y; /* go to widget->window */
- *y -= ly; /* go to layout */
+ if (start_offset < 0)
+ start_offset = g_utf8_strlen (label->text, -1);
+
+ if (end_offset < 0)
+ end_offset = g_utf8_strlen (label->text, -1);
+
+ gtk_label_select_region_index (label,
+ g_utf8_offset_to_pointer (label->text, start_offset) - label->text,
+ g_utf8_offset_to_pointer (label->text, end_offset) - label->text);
}
}
-static void
-layout_to_window_coords (GtkLabel *label,
- gint *x,
- gint *y)
+/**
+ * gtk_label_get_selection_bounds:
+ * @label: a #GtkLabel
+ * @start: return location for start of selection, as a character offset
+ * @end: return location for end of selection, as a character offset
+ *
+ * Gets the selected range of characters in the label, returning %TRUE
+ * if there's a selection.
+ *
+ * Return value: %TRUE if selection is non-empty
+ **/
+gboolean
+gtk_label_get_selection_bounds (GtkLabel *label,
+ gint *start,
+ gint *end)
{
- gint lx, ly;
- GtkWidget *widget;
+ g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- widget = GTK_WIDGET (label);
-
- /* get layout location in widget->window coords */
- get_layout_location (label, &lx, &ly);
-
- if (x)
+ if (label->select_info == NULL)
{
- *x += lx; /* go to widget->window */
- *x -= widget->allocation.x; /* go to selection window */
- }
+ /* not a selectable label */
+ if (start)
+ *start = 0;
+ if (end)
+ *end = 0;
- if (y)
+ return FALSE;
+ }
+ else
{
- *y += ly; /* go to widget->window */
- *y -= widget->allocation.y; /* go to selection window */
+ gint start_index, end_index;
+ gint start_offset, end_offset;
+ gint len;
+
+ start_index = MIN (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+ end_index = MAX (label->select_info->selection_anchor,
+ label->select_info->selection_end);
+
+ len = strlen (label->text);
+
+ if (end_index > len)
+ end_index = len;
+
+ if (start_index > len)
+ start_index = len;
+
+ start_offset = g_utf8_strlen (label->text, start_index);
+ end_offset = g_utf8_strlen (label->text, end_index);
+
+ if (start_offset > end_offset)
+ {
+ gint tmp = start_offset;
+ start_offset = end_offset;
+ end_offset = tmp;
+ }
+
+ if (start)
+ *start = start_offset;
+
+ if (end)
+ *end = end_offset;
+
+ return start_offset != end_offset;
}
}
-static void
-get_layout_index (GtkLabel *label,
- gint x,
- gint y,
- gint *index)
+
+/**
+ * gtk_label_get_layout:
+ * @label: a #GtkLabel
+ *
+ * Gets the #PangoLayout used to display the label.
+ * The layout is useful to e.g. convert text positions to
+ * pixel positions, in combination with gtk_label_get_layout_offsets().
+ * The returned layout is owned by the label so need not be
+ * freed by the caller.
+ *
+ * Return value: the #PangoLayout for this label
+ **/
+PangoLayout*
+gtk_label_get_layout (GtkLabel *label)
{
- gint trailing = 0;
- const gchar *cluster;
- const gchar *cluster_end;
+ g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- *index = 0;
-
- gtk_label_ensure_layout (label, NULL, NULL);
-
- window_to_layout_coords (label, &x, &y);
+ gtk_label_ensure_layout (label);
- x *= PANGO_SCALE;
- y *= PANGO_SCALE;
+ return label->layout;
+}
+
+/**
+ * gtk_label_get_layout_offsets:
+ * @label: a #GtkLabel
+ * @x: location to store X offset of layout, or %NULL
+ * @y: location to store Y offset of layout, or %NULL
+ *
+ * Obtains the coordinates where the label will draw the #PangoLayout
+ * representing the text in the label; useful to convert mouse events
+ * into coordinates inside the #PangoLayout, e.g. to take some action
+ * if some part of the label is clicked. Of course you will need to
+ * create a #GtkEventBox to receive the events, and pack the label
+ * inside it, since labels are a #GTK_NO_WINDOW widget. Remember
+ * when using the #PangoLayout functions you need to convert to
+ * and from pixels using PANGO_PIXELS() or #PANGO_SCALE.
+ *
+ **/
+void
+gtk_label_get_layout_offsets (GtkLabel *label,
+ gint *x,
+ gint *y)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
- pango_layout_xy_to_index (label->layout,
- x, y,
- index, &trailing);
+ get_layout_location (label, x, y);
+}
+
+/**
+ * gtk_label_set_use_markup:
+ * @label: a #GtkLabel
+ * @setting: %TRUE if the label's text should be parsed for markup.
+ *
+ * Sets whether the text of the label contains markup in <link
+ * linkend="PangoMarkupFormat">Pango's text markup
+ * language</link>. See gtk_label_set_markup().
+ **/
+void
+gtk_label_set_use_markup (GtkLabel *label,
+ gboolean setting)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ gtk_label_set_use_markup_internal (label, setting);
+ gtk_label_recalculate (label);
+}
+/**
+ * gtk_label_get_use_markup:
+ * @label: a #GtkLabel
+ *
+ * Returns whether the label's text is interpreted as marked up with
+ * the <link linkend="PangoMarkupFormat">Pango text markup
+ * language</link>. See gtk_label_set_use_markup ().
+ *
+ * Return value: %TRUE if the label's text will be parsed for markup.
+ **/
+gboolean
+gtk_label_get_use_markup (GtkLabel *label)
+{
+ g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- cluster = label->label + *index;
- cluster_end = cluster;
- while (trailing)
- {
- cluster_end = g_utf8_next_char (cluster_end);
- --trailing;
- }
+ return label->use_markup;
+}
- *index += (cluster_end - cluster);
+/**
+ * gtk_label_set_use_underline:
+ * @label: a #GtkLabel
+ * @setting: %TRUE if underlines in the text indicate mnemonics
+ *
+ * If true, an underline in the text indicates the next character should be
+ * used for the mnemonic accelerator key.
+ */
+void
+gtk_label_set_use_underline (GtkLabel *label,
+ gboolean setting)
+{
+ g_return_if_fail (GTK_IS_LABEL (label));
+
+ gtk_label_set_use_underline_internal (label, setting);
+ gtk_label_recalculate (label);
+ if (label->use_underline)
+ gtk_label_setup_mnemonic (label, label->mnemonic_keyval);
}
-static gint
-gtk_label_button_press (GtkWidget *widget,
- GdkEventButton *event)
+/**
+ * gtk_label_get_use_underline:
+ * @label: a #GtkLabel
+ *
+ * Returns whether an embedded underline in the label indicates a
+ * mnemonic. See gtk_label_set_use_underline ().
+ *
+ * Return value: %TRUE whether an embedded underline in the label indicates
+ * the mnemonic accelerator keys.
+ **/
+gboolean
+gtk_label_get_use_underline (GtkLabel *label)
{
- GtkLabel *label;
- gint index = 0;
+ g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- label = GTK_LABEL (widget);
+ return label->use_underline;
+}
- if (label->select_info == NULL)
- return FALSE;
+static gboolean
+gtk_label_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+{
+ /* We never want to be in the tab chain */
+ return FALSE;
+}
- if (event->button != 1)
- return FALSE;
+/* Compute the X position for an offset that corresponds to the "more important
+ * cursor position for that offset. We use this when trying to guess to which
+ * end of the selection we should go to when the user hits the left or
+ * right arrow key.
+ */
+static void
+get_better_cursor (GtkLabel *label,
+ gint index,
+ gint *x,
+ gint *y)
+{
+ GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (label)));
+ GtkTextDirection keymap_direction =
+ (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+ GtkTextDirection widget_direction = gtk_widget_get_direction (GTK_WIDGET (label));
+ gboolean split_cursor;
+ PangoRectangle strong_pos, weak_pos;
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
- get_layout_index (label, event->x, event->y, &index);
+ gtk_label_ensure_layout (label);
- if ((label->select_info->selection_anchor !=
- label->select_info->selection_end) &&
- (event->state & GDK_SHIFT_MASK))
- {
- /* extend (same as motion) */
- if (index < label->select_info->selection_end)
- gtk_label_select_region_index (label,
- index,
- label->select_info->selection_end);
- else
- gtk_label_select_region_index (label,
- label->select_info->selection_anchor,
- index);
+ pango_layout_get_cursor_pos (label->layout, index,
+ &strong_pos, &weak_pos);
- /* ensure the anchor is opposite index */
- if (index == label->select_info->selection_anchor)
- {
- gint tmp = label->select_info->selection_end;
- label->select_info->selection_end = label->select_info->selection_anchor;
- label->select_info->selection_anchor = tmp;
- }
+ if (split_cursor)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
}
else
{
- /* start a replacement */
- gtk_label_select_region_index (label, index, index);
+ if (keymap_direction == widget_direction)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
+ }
+ else
+ {
+ *x = weak_pos.x / PANGO_SCALE;
+ *y = weak_pos.y / PANGO_SCALE;
+ }
}
-
- return TRUE;
}
-static gint
-gtk_label_button_release (GtkWidget *widget,
- GdkEventButton *event)
+static gint
+gtk_label_move_logically (GtkLabel *label,
+ gint start,
+ gint count)
{
- GtkLabel *label;
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
- label = GTK_LABEL (widget);
-
- if (label->select_info == NULL)
- return FALSE;
-
- if (event->button != 1)
- return FALSE;
-
- /* The goal here is to return TRUE iff we ate the
- * button press to start selecting.
- */
-
- return TRUE;
+ if (label->text)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+ gint length;
+
+ gtk_label_ensure_layout (label);
+
+ length = g_utf8_strlen (label->text, -1);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ while (count > 0 && offset < length)
+ {
+ do
+ offset++;
+ while (offset < length && !log_attrs[offset].is_cursor_position);
+
+ count--;
+ }
+ while (count < 0 && offset > 0)
+ {
+ do
+ offset--;
+ while (offset > 0 && !log_attrs[offset].is_cursor_position);
+
+ count++;
+ }
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, offset) - label->text;
}
static gint
-gtk_label_motion (GtkWidget *widget,
- GdkEventMotion *event)
+gtk_label_move_visually (GtkLabel *label,
+ gint start,
+ gint count)
{
- GtkLabel *label;
gint index;
- gint x, y;
-
- label = GTK_LABEL (widget);
+
+ index = start;
- if (label->select_info == NULL)
- return FALSE;
+ while (count != 0)
+ {
+ int new_index, new_trailing;
+ gboolean split_cursor;
+ gboolean strong;
- if ((event->state & GDK_BUTTON1_MASK) == 0)
- return FALSE;
+ gtk_label_ensure_layout (label);
- gdk_window_get_pointer (label->select_info->window,
- &x, &y, NULL);
-
- get_layout_index (label, x, y, &index);
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
- gtk_label_select_region_index (label,
- label->select_info->selection_anchor,
- index);
+ if (split_cursor)
+ strong = TRUE;
+ else
+ {
+ GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (label)));
+ GtkTextDirection keymap_direction =
+ (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+
+ strong = keymap_direction == gtk_widget_get_direction (GTK_WIDGET (label));
+ }
+
+ if (count > 0)
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, 1, &new_index, &new_trailing);
+ count--;
+ }
+ else
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, -1, &new_index, &new_trailing);
+ count++;
+ }
+
+ if (new_index < 0 || new_index == G_MAXINT)
+ break;
+
+ index = new_index;
+
+ while (new_trailing--)
+ index = g_utf8_next_char (label->text + new_index) - label->text;
+ }
- return TRUE;
+ return index;
}
-static void
-gtk_label_create_window (GtkLabel *label)
+static gint
+gtk_label_move_forward_word (GtkLabel *label,
+ gint start)
{
- GtkWidget *widget;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- g_assert (label->select_info);
- g_assert (GTK_WIDGET_REALIZED (label));
-
- if (label->select_info->window)
- return;
-
- widget = GTK_WIDGET (label);
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+ gint length;
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
- attributes.window_type = GDK_WINDOW_TEMP;
- attributes.wclass = GDK_INPUT_ONLY;
- attributes.override_redirect = TRUE;
- attributes.event_mask = gtk_widget_get_events (widget) |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_BUTTON_MOTION_MASK;
+ length = g_utf8_strlen (label->text, -1);
+ if (new_pos < length)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
+ gtk_label_ensure_layout (label);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ /* Find the next word end */
+ new_pos++;
+ while (new_pos < n_attrs && !log_attrs[new_pos].is_word_end)
+ new_pos++;
- label->select_info->window = gdk_window_new (widget->window,
- &attributes, attributes_mask);
- gdk_window_set_user_data (label->select_info->window, widget);
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
}
-static void
-gtk_label_destroy_window (GtkLabel *label)
+
+static gint
+gtk_label_move_backward_word (GtkLabel *label,
+ gint start)
{
- g_assert (label->select_info);
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+ gint length;
- if (label->select_info->window == NULL)
- return;
+ length = g_utf8_strlen (label->text, -1);
- gdk_window_set_user_data (label->select_info->window, NULL);
- gdk_window_destroy (label->select_info->window);
- label->select_info->window = NULL;
+ if (new_pos > 0)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+
+ gtk_label_ensure_layout (label);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ new_pos -= 1;
+
+ /* Find the previous word beginning */
+ while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
+ new_pos--;
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
}
-void
-gtk_label_set_selectable (GtkLabel *label,
- gboolean setting)
+static void
+gtk_label_move_cursor (GtkLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection)
{
- g_return_if_fail (GTK_IS_LABEL (label));
+ gint new_pos;
- setting = setting != FALSE;
+ if (label->select_info == NULL)
+ return;
+
+ new_pos = label->select_info->selection_end;
- if (setting)
+ if (label->select_info->selection_end != label->select_info->selection_anchor &&
+ !extend_selection)
{
- if (label->select_info == NULL)
- {
- label->select_info = g_new (GtkLabelSelectionInfo, 1);
-
- label->select_info->window = NULL;
- label->select_info->selection_anchor = 0;
- label->select_info->selection_end = 0;
-
- if (GTK_WIDGET_REALIZED (label))
- gtk_label_create_window (label);
+ /* If we have a current selection and aren't extending it, move to the
+ * start/or end of the selection as appropriate
+ */
+ switch (step)
+ {
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ {
+ gint end_x, end_y;
+ gint anchor_x, anchor_y;
+ gboolean end_is_left;
+
+ get_better_cursor (label, label->select_info->selection_end, &end_x, &end_y);
+ get_better_cursor (label, label->select_info->selection_anchor, &anchor_x, &anchor_y);
+
+ end_is_left = (end_y < anchor_y) || (end_y == anchor_y && end_x < anchor_x);
+
+ if (count < 0)
+ new_pos = end_is_left ? label->select_info->selection_end : label->select_info->selection_anchor;
+ else
+ new_pos = !end_is_left ? label->select_info->selection_end : label->select_info->selection_anchor;
- if (GTK_WIDGET_MAPPED (label))
- gdk_window_show (label->select_info->window);
- }
+ break;
+ }
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ case GTK_MOVEMENT_WORDS:
+ if (count < 0)
+ new_pos = MIN (label->select_info->selection_end, label->select_info->selection_anchor);
+ else
+ new_pos = MAX (label->select_info->selection_end, label->select_info->selection_anchor);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ break;
+ }
}
else
{
- if (label->select_info)
- {
- if (label->select_info->window)
- gtk_label_destroy_window (label);
-
- g_free (label->select_info);
-
- label->select_info = NULL;
- }
+ switch (step)
+ {
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ new_pos = gtk_label_move_logically (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ new_pos = gtk_label_move_visually (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_WORDS:
+ while (count > 0)
+ {
+ new_pos = gtk_label_move_forward_word (label, new_pos);
+ count--;
+ }
+ while (count < 0)
+ {
+ new_pos = gtk_label_move_backward_word (label, new_pos);
+ count++;
+ }
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ break;
+ }
}
-}
-
-gboolean
-gtk_label_get_selectable (GtkLabel *label)
-{
- g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- return label->select_info != NULL;
+ if (extend_selection)
+ gtk_label_select_region_index (label,
+ label->select_info->selection_anchor,
+ new_pos);
+ else
+ gtk_label_select_region_index (label, new_pos, new_pos);
}
static void
-get_text_callback (GtkClipboard *clipboard,
- GtkSelectionData *selection_data,
- guint info,
- gpointer user_data_or_owner)
+gtk_label_copy_clipboard (GtkLabel *label)
{
- GtkLabel *label;
- gchar *str;
-
- label = GTK_LABEL (user_data_or_owner);
-
- if ((label->select_info->selection_anchor !=
- label->select_info->selection_end) &&
- label->label)
+ if (label->text && label->select_info)
{
gint start, end;
+ gint len;
start = MIN (label->select_info->selection_anchor,
label->select_info->selection_end);
end = MAX (label->select_info->selection_anchor,
label->select_info->selection_end);
-
- str = g_strndup (label->label + start,
- end - start);
-
- gtk_selection_data_set_text (selection_data,
- str);
- g_free (str);
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ if (start != end)
+ gtk_clipboard_set_text (gtk_widget_get_clipboard (GTK_WIDGET (label),
+ GDK_SELECTION_CLIPBOARD),
+ label->text + start, end - start);
}
}
static void
-clear_text_callback (GtkClipboard *clipboard,
- gpointer user_data_or_owner)
+gtk_label_select_all (GtkLabel *label)
{
- GtkLabel *label;
-
- label = GTK_LABEL (user_data_or_owner);
+ gtk_label_select_region_index (label, 0, strlen (label->text));
+}
- if (label->select_info)
- {
- label->select_info->selection_anchor = 0;
- label->select_info->selection_end = 0;
-
- gtk_label_clear_layout (label);
- gtk_widget_queue_draw (GTK_WIDGET (label));
- }
+/* Quick hack of a popup menu
+ */
+static void
+activate_cb (GtkWidget *menuitem,
+ GtkLabel *label)
+{
+ const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
+ g_signal_emit_by_name (label, signal);
}
static void
-gtk_label_select_region_index (GtkLabel *label,
- gint anchor_index,
- gint end_index)
+append_action_signal (GtkLabel *label,
+ GtkWidget *menu,
+ const gchar *stock_id,
+ const gchar *signal,
+ gboolean sensitive)
{
- static const GtkTargetEntry targets[] = {
- { "STRING", 0, 0 },
- { "TEXT", 0, 0 },
- { "COMPOUND_TEXT", 0, 0 },
- { "UTF8_STRING", 0, 0 }
- };
-
- g_return_if_fail (GTK_IS_LABEL (label));
+ GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
+
+ g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
+ g_signal_connect (menuitem, "activate",
+ G_CALLBACK (activate_cb), label);
+
+ gtk_widget_set_sensitive (menuitem, sensitive);
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
+}
+
+static void
+popup_menu_detach (GtkWidget *attach_widget,
+ GtkMenu *menu)
+{
+ GtkLabel *label;
+ label = GTK_LABEL (attach_widget);
+
if (label->select_info)
- {
- GtkClipboard *clipboard;
+ label->select_info->popup_menu = NULL;
+}
- label->select_info->selection_anchor = anchor_index;
- label->select_info->selection_end = end_index;
+static void
+popup_position_func (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gboolean *push_in,
+ gpointer user_data)
+{
+ GtkLabel *label;
+ GtkWidget *widget;
+ GtkRequisition req;
+ GdkScreen *screen;
+
+ label = GTK_LABEL (user_data);
+ widget = GTK_WIDGET (label);
- clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
+ if (label->select_info == NULL)
+ return;
+
+ g_return_if_fail (GTK_WIDGET_REALIZED (label));
+
+ screen = gtk_widget_get_screen (widget);
+ gdk_window_get_origin (widget->window, x, y);
- gtk_clipboard_set_with_owner (clipboard,
- targets,
- G_N_ELEMENTS (targets),
- get_text_callback,
- clear_text_callback,
- G_OBJECT (label));
+ gtk_widget_size_request (label->select_info->popup_menu, &req);
+
+ *x += widget->allocation.width / 2;
+ *y += widget->allocation.height;
- gtk_label_clear_layout (label);
- gtk_widget_queue_draw (GTK_WIDGET (label));
- }
+ *x = CLAMP (*x, 0, MAX (0, gdk_screen_get_width (screen) - req.width));
+ *y = CLAMP (*y, 0, MAX (0, gdk_screen_get_height (screen) - req.height));
}
-void
-gtk_label_select_region (GtkLabel *label,
- gint start_offset,
- gint end_offset)
+
+static void
+gtk_label_do_popup (GtkLabel *label,
+ GdkEventButton *event)
{
- g_return_if_fail (GTK_IS_LABEL (label));
+ GtkWidget *menuitem;
+ gboolean have_selection;
+
+ if (label->select_info == NULL)
+ return;
+
+ if (label->select_info->popup_menu)
+ gtk_widget_destroy (label->select_info->popup_menu);
- if (label->label && label->select_info)
- {
- GtkClipboard *clipboard;
+ label->select_info->popup_menu = gtk_menu_new ();
- if (start_offset < 0)
- start_offset = 0;
+ gtk_menu_attach_to_widget (GTK_MENU (label->select_info->popup_menu),
+ GTK_WIDGET (label),
+ popup_menu_detach);
- if (end_offset < 0)
- end_offset = g_utf8_strlen (label->label, -1);
+ have_selection =
+ label->select_info->selection_anchor != label->select_info->selection_end;
+
+
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
+ FALSE);
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
+ have_selection);
+ append_action_signal (label, label->select_info->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
+ FALSE);
+
+ menuitem = gtk_menu_item_new_with_label (_("Select All"));
+ g_signal_connect_swapped (menuitem, "activate",
+ G_CALLBACK (gtk_label_select_all), label);
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
+
+ menuitem = gtk_separator_menu_item_new ();
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
- gtk_label_select_region_index (label,
- g_utf8_offset_to_pointer (label->label, start_offset) - label->label,
- g_utf8_offset_to_pointer (label->label, end_offset) - label->label);
- }
+ menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
+ gtk_widget_show (menuitem);
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), gtk_menu_new ());
+ gtk_widget_set_sensitive (menuitem, FALSE);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->select_info->popup_menu), menuitem);
+
+ g_signal_emit (label,
+ signals[POPULATE_POPUP],
+ 0,
+ label->select_info->popup_menu);
+
+ if (event)
+ gtk_menu_popup (GTK_MENU (label->select_info->popup_menu), NULL, NULL,
+ NULL, NULL,
+ event->button, event->time);
+ else
+ gtk_menu_popup (GTK_MENU (label->select_info->popup_menu), NULL, NULL,
+ popup_position_func, label,
+ 0, gtk_get_current_event_time ());
}
-
projects / ~andy / gtk / blobdiff