*/
#include "gtkeventbox.h"
+#include "gtkintl.h"
-
-static void gtk_event_box_class_init (GtkEventBoxClass *klass);
-static void gtk_event_box_init (GtkEventBox *event_box);
-static void gtk_event_box_realize (GtkWidget *widget);
-static void gtk_event_box_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gtk_event_box_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_event_box_paint (GtkWidget *widget,
- GdkRectangle *area);
-static gint gtk_event_box_expose (GtkWidget *widget,
- GdkEventExpose *event);
-
+typedef struct
+{
+ gboolean above_child;
+ GdkWindow *event_window;
+} GtkEventBoxPrivate;
+
+enum {
+ PROP_0,
+ PROP_VISIBLE_WINDOW,
+ PROP_ABOVE_CHILD
+};
+
+
+#define GTK_EVENT_BOX_GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE((obj), GTK_TYPE_EVENT_BOX, GtkEventBoxPrivate)
+
+static void gtk_event_box_class_init (GtkEventBoxClass *klass);
+static void gtk_event_box_init (GtkEventBox *event_box);
+static void gtk_event_box_realize (GtkWidget *widget);
+static void gtk_event_box_unrealize (GtkWidget *widget);
+static void gtk_event_box_map (GtkWidget *widget);
+static void gtk_event_box_unmap (GtkWidget *widget);
+static void gtk_event_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_event_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_event_box_paint (GtkWidget *widget,
+ GdkRectangle *area);
+static gint gtk_event_box_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+static void gtk_event_box_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_event_box_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
static GtkBinClass *parent_class = NULL;
static void
gtk_event_box_class_init (GtkEventBoxClass *class)
{
- GtkWidgetClass *widget_class;
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
parent_class = g_type_class_peek_parent (class);
-
- widget_class = (GtkWidgetClass*) class;
+ gobject_class->set_property = gtk_event_box_set_property;
+ gobject_class->get_property = gtk_event_box_get_property;
+
widget_class->realize = gtk_event_box_realize;
+ widget_class->unrealize = gtk_event_box_unrealize;
+ widget_class->map = gtk_event_box_map;
+ widget_class->unmap = gtk_event_box_unmap;
widget_class->size_request = gtk_event_box_size_request;
widget_class->size_allocate = gtk_event_box_size_allocate;
widget_class->expose_event = gtk_event_box_expose;
+
+ g_object_class_install_property (gobject_class,
+ PROP_VISIBLE_WINDOW,
+ g_param_spec_boolean ("visible-window",
+ _("Visible Window"),
+ _(" Whether the event box is visible, as opposed to invisible and only used to trap events."),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_ABOVE_CHILD,
+ g_param_spec_boolean ("above-child",
+ _("Above child"),
+ _("Whether the event-trapping window of the eventbox is above the window of the child widget as opposed to below it."),
+ FALSE,
+ G_PARAM_READWRITE));
+
+ g_type_class_add_private (class, sizeof (GtkEventBoxPrivate));
}
static void
gtk_event_box_init (GtkEventBox *event_box)
{
+ GtkEventBoxPrivate *priv;
+
GTK_WIDGET_UNSET_FLAGS (event_box, GTK_NO_WINDOW);
+
+ priv = GTK_EVENT_BOX_GET_PRIVATE (event_box);
+ priv->above_child = FALSE;
}
GtkWidget*
return g_object_new (GTK_TYPE_EVENT_BOX, NULL);
}
+static void
+gtk_event_box_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkEventBox *event_box;
+
+ event_box = GTK_EVENT_BOX (object);
+
+ switch (prop_id)
+ {
+ case PROP_VISIBLE_WINDOW:
+ gtk_event_box_set_visible_window (event_box, g_value_get_boolean (value));
+ break;
+ case PROP_ABOVE_CHILD:
+ gtk_event_box_set_above_child (event_box, g_value_get_boolean (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_event_box_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkEventBox *event_box;
+
+ event_box = GTK_EVENT_BOX (object);
+
+ switch (prop_id)
+ {
+ case PROP_VISIBLE_WINDOW:
+ g_value_set_boolean (value, gtk_event_box_get_visible_window (event_box));
+ break;
+ case PROP_ABOVE_CHILD:
+ g_value_set_boolean (value, gtk_event_box_get_above_child (event_box));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/**
+ * gtk_event_box_get_visible_window:
+ * @event_box: a #GtkEventBox
+ *
+ * Returns whether the event box has a visible window.
+ * See gtk_event_box_set_visible_window() for details.
+ *
+ * Return value: %TRUE if the event box window is visible
+ *
+ * Since: 2.4
+ **/
+gboolean
+gtk_event_box_get_visible_window (GtkEventBox *event_box)
+{
+ g_return_val_if_fail (GTK_IS_EVENT_BOX (event_box), FALSE);
+
+ return !GTK_WIDGET_NO_WINDOW (event_box);
+}
+
+/**
+ * gtk_event_box_set_visible_window:
+ * @event_box: a #GtkEventBox
+ * @visible_window: boolean value
+ *
+ * Set whether the event box uses a visible or invisible child
+ * window. The default is to use visible windows.
+ *
+ * In an invisible window event box, the window that that the
+ * event box creates is a %GDK_INPUT_ONLY window, which
+ * means that it is invisible and only serves to receive
+ * events.
+ *
+ * A visible window event box creates a visible (%GDK_INPUT_OUTPUT)
+ * window that acts as the parent window for all the widgets
+ * contained in the event box.
+ *
+ * You should generally make your event box invisible if
+ * you just want to trap events. Creating a visible window
+ * may cause artifacts that are visible to the user, especially
+ * if the user is using a theme with gradients or pixmaps.
+ *
+ * The main reason to create a non input-only event box is if
+ * you want to set the background to a different color or
+ * draw on it.
+ *
+ * <note>
+ * There is one unexpected issue for an invisible event box that has its
+ * window below the child. (See gtk_event_box_set_above_child().)
+ * Since the input-only window is not an ancestor window of any windows
+ * that descendent widgets of the event box create, events on these
+ * windows aren't propagated up by the windowing system, but only by GTK+.
+ * The practical effect of this is if an event isn't in the event
+ * mask for the descendant window (see gtk_widget_add_events()),
+ * it won't be received by the event box.
+ *
+ * This problem doesn't occur for visible event boxes, because in
+ * that case, the event box window is actually the ancestor of the
+ * descendant windows, not just at the same place on the screen.
+ * </note>
+ *
+ * Since: 2.4
+ **/
+void
+gtk_event_box_set_visible_window (GtkEventBox *event_box,
+ gboolean visible_window)
+{
+ GtkWidget *widget;
+ GtkEventBoxPrivate *priv;
+
+ g_return_if_fail (GTK_IS_EVENT_BOX (event_box));
+
+ widget = GTK_WIDGET (event_box);
+ priv = GTK_EVENT_BOX_GET_PRIVATE (event_box);
+
+ visible_window = visible_window != FALSE;
+
+ if (visible_window != !GTK_WIDGET_NO_WINDOW (widget))
+ {
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ gboolean visible = GTK_WIDGET_VISIBLE (widget);
+
+ if (visible)
+ gtk_widget_hide (widget);
+
+ gtk_widget_unrealize (widget);
+
+ if (visible_window)
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_NO_WINDOW);
+ else
+ GTK_WIDGET_SET_FLAGS (widget, GTK_NO_WINDOW);
+
+ gtk_widget_realize (widget);
+
+ if (visible)
+ gtk_widget_show (widget);
+ }
+ else
+ {
+ if (visible_window)
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_NO_WINDOW);
+ else
+ GTK_WIDGET_SET_FLAGS (widget, GTK_NO_WINDOW);
+ }
+
+ if (GTK_WIDGET_VISIBLE (widget))
+ gtk_widget_queue_resize (widget);
+
+ g_object_notify (G_OBJECT (event_box), "visible-window");
+ }
+}
+
+/**
+ * gtk_event_box_get_above_child:
+ * @event_box: a #GtkEventBox
+ *
+ * Returns whether the event box window is above or below the
+ * windows of its child. See gtk_event_box_set_above_child() for
+ * details.
+ *
+ * Return value: %TRUE if the event box window is above the window
+ * of its child.
+ *
+ * Since: 2.4
+ **/
+gboolean
+gtk_event_box_get_above_child (GtkEventBox *event_box)
+{
+ GtkEventBoxPrivate *priv;
+
+ g_return_val_if_fail (GTK_IS_EVENT_BOX (event_box), FALSE);
+
+ priv = GTK_EVENT_BOX_GET_PRIVATE (event_box);
+
+ return priv->above_child;
+}
+
+/**
+ * gtk_event_box_set_above_child:
+ * @event_box: a #GtkEventBox
+ * @above_child: %TRUE if the event box window is above the windows of its child
+ *
+ * Set whether the event box window is positioned above the windows of its child,
+ * as opposed to below it. If the window is above, all events inside the
+ * event box will go to the event box. If the window is below, events
+ * in windows of child widgets will first got to that widget, and then
+ * to its parents.
+ *
+ * The default is to keep the window below the child.
+ *
+ * Since: 2.4
+ **/
+void
+gtk_event_box_set_above_child (GtkEventBox *event_box,
+ gboolean above_child)
+{
+ GtkWidget *widget;
+ GtkEventBoxPrivate *priv;
+
+ g_return_if_fail (GTK_IS_EVENT_BOX (event_box));
+
+ widget = GTK_WIDGET (event_box);
+ priv = GTK_EVENT_BOX_GET_PRIVATE (event_box);
+
+ above_child = above_child != FALSE;
+
+ if (priv->above_child != above_child)
+ {
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ {
+ if (above_child)
+ gdk_window_raise (priv->event_window);
+ else
+ gdk_window_lower (priv->event_window);
+ }
+ else
+ {
+ gboolean visible = GTK_WIDGET_VISIBLE (widget);
+
+ if (visible)
+ gtk_widget_hide (widget);
+
+ gtk_widget_unrealize (widget);
+ priv->above_child = above_child;
+
+ gtk_widget_realize (widget);
+
+ if (visible)
+ gtk_widget_show (widget);
+ }
+ }
+ else
+ priv->above_child = above_child;
+
+ if (GTK_WIDGET_VISIBLE (widget))
+ gtk_widget_queue_resize (widget);
+
+ g_object_notify (G_OBJECT (event_box), "above-child");
+ }
+}
+
+
+
static void
gtk_event_box_realize (GtkWidget *widget)
{
GdkWindowAttr attributes;
gint attributes_mask;
gint border_width;
+ GtkEventBoxPrivate *priv;
+ gboolean visible_window;
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.width = widget->allocation.width - 2*border_width;
attributes.height = widget->allocation.height - 2*border_width;
attributes.window_type = GDK_WINDOW_CHILD;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget)
| GDK_BUTTON_MOTION_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ priv = GTK_EVENT_BOX_GET_PRIVATE (widget);
+
+ visible_window = !GTK_WIDGET_NO_WINDOW (widget);
+ if (visible_window)
+ {
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+ attributes.wclass = GDK_INPUT_OUTPUT;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (widget->window, widget);
+ }
+ else
+ {
+ widget->window = gtk_widget_get_parent_window (widget);
+ g_object_ref (widget->window);
+ }
+
+ if (!visible_window || priv->above_child)
+ {
+ attributes.wclass = GDK_INPUT_ONLY;
+ attributes_mask = GDK_WA_X | GDK_WA_Y;
+
+ priv->event_window = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->event_window, widget);
+ }
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+
+ if (visible_window)
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+}
+
+static void
+gtk_event_box_unrealize (GtkWidget *widget)
+{
+ GtkEventBox *event_box;
+ GtkEventBoxPrivate *priv;
+
+ event_box = GTK_EVENT_BOX (widget);
+ priv = GTK_EVENT_BOX_GET_PRIVATE (widget);
+
+ if (priv->event_window != NULL)
+ {
+ gdk_window_set_user_data (priv->event_window, NULL);
+ gdk_window_destroy (priv->event_window);
+ priv->event_window = NULL;
+ }
+
+ if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
+static void
+gtk_event_box_map (GtkWidget *widget)
+{
+ GtkEventBoxPrivate *priv;
+
+ priv = GTK_EVENT_BOX_GET_PRIVATE (widget);
+
+ if (priv->event_window != NULL && !priv->above_child)
+ gdk_window_show (priv->event_window);
+
+ (* GTK_WIDGET_CLASS (parent_class)->map) (widget);
+
+ if (priv->event_window != NULL && priv->above_child)
+ gdk_window_show (priv->event_window);
+}
+
+static void
+gtk_event_box_unmap (GtkWidget *widget)
+{
+ GtkEventBoxPrivate *priv;
+
+ priv = GTK_EVENT_BOX_GET_PRIVATE (widget);
+
+ if (priv->event_window != NULL)
+ gdk_window_hide (priv->event_window);
+
+ (* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
+}
+
+
+
static void
gtk_event_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
static void
gtk_event_box_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
+ GtkAllocation *allocation)
{
GtkBin *bin;
GtkAllocation child_allocation;
-
+ GtkEventBoxPrivate *priv;
+
widget->allocation = *allocation;
bin = GTK_BIN (widget);
-
- child_allocation.x = 0;
- child_allocation.y = 0;
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ {
+ child_allocation.x = allocation->x + GTK_CONTAINER (widget)->border_width;
+ child_allocation.y = allocation->y + GTK_CONTAINER (widget)->border_width;
+ }
+ else
+ {
+ child_allocation.x = 0;
+ child_allocation.y = 0;
+ }
child_allocation.width = MAX (allocation->width - GTK_CONTAINER (widget)->border_width * 2, 0);
child_allocation.height = MAX (allocation->height - GTK_CONTAINER (widget)->border_width * 2, 0);
if (GTK_WIDGET_REALIZED (widget))
{
- gdk_window_move_resize (widget->window,
- allocation->x + GTK_CONTAINER (widget)->border_width,
- allocation->y + GTK_CONTAINER (widget)->border_width,
- child_allocation.width,
- child_allocation.height);
+ priv = GTK_EVENT_BOX_GET_PRIVATE (widget);
+
+ if (priv->event_window != NULL)
+ gdk_window_move_resize (priv->event_window,
+ child_allocation.x,
+ child_allocation.y,
+ child_allocation.width,
+ child_allocation.height);
+
+ if (!GTK_WIDGET_NO_WINDOW (widget))
+ gdk_window_move_resize (widget->window,
+ allocation->x + GTK_CONTAINER (widget)->border_width,
+ allocation->y + GTK_CONTAINER (widget)->border_width,
+ child_allocation.width,
+ child_allocation.height);
}
if (bin->child)
- {
- gtk_widget_size_allocate (bin->child, &child_allocation);
- }
+ gtk_widget_size_allocate (bin->child, &child_allocation);
}
static void
{
if (GTK_WIDGET_DRAWABLE (widget))
{
- gtk_event_box_paint (widget, &event->area);
+ if (!GTK_WIDGET_NO_WINDOW (widget))
+ gtk_event_box_paint (widget, &event->area);
(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
}
gtk_widget_destroy (window);
}
+/* GtkEventBox */
+
+
+static void
+event_box_label_pressed (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer user_data)
+{
+ g_print ("clicked on event box\n");
+}
+
+static void
+event_box_button_clicked (GtkWidget *widget,
+ GtkWidget *button,
+ gpointer user_data)
+{
+ g_print ("pushed button\n");
+}
+
+static void
+event_box_toggle_visible_window (GtkWidget *checkbutton,
+ GtkEventBox *event_box)
+{
+ gtk_event_box_set_visible_window (event_box,
+ GTK_TOGGLE_BUTTON(checkbutton)->active);
+}
+
+static void
+event_box_toggle_above_child (GtkWidget *checkbutton,
+ GtkEventBox *event_box)
+{
+ gtk_event_box_set_above_child (event_box,
+ GTK_TOGGLE_BUTTON(checkbutton)->active);
+}
+
+static void
+create_event_box (GtkWidget *widget)
+{
+ static GtkWidget *window = NULL;
+ GtkWidget *box1;
+ GtkWidget *box2;
+ GtkWidget *hbox;
+ GtkWidget *vbox;
+ GtkWidget *button;
+ GtkWidget *separator;
+ GtkWidget *event_box;
+ GtkWidget *label;
+ GtkWidget *visible_window_check;
+ GtkWidget *above_child_check;
+ GdkColor color;
+
+ if (!window)
+ {
+ color.red = 0;
+ color.blue = 65535;
+ color.green = 0;
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_window_set_screen (GTK_WINDOW (window),
+ gtk_widget_get_screen (widget));
+
+ g_signal_connect (window, "destroy",
+ G_CALLBACK (gtk_widget_destroyed),
+ &window);
+
+ gtk_window_set_title (GTK_WINDOW (window), "event box");
+ gtk_container_set_border_width (GTK_CONTAINER (window), 0);
+
+ box1 = gtk_vbox_new (FALSE, 0);
+ gtk_container_add (GTK_CONTAINER (window), box1);
+ gtk_widget_modify_bg (window, GTK_STATE_NORMAL, &color);
+
+ hbox = gtk_hbox_new (FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (box1), hbox, TRUE, FALSE, 0);
+
+ event_box = gtk_event_box_new ();
+ gtk_box_pack_start (GTK_BOX (hbox), event_box, TRUE, FALSE, 0);
+
+ vbox = gtk_vbox_new (FALSE, 0);
+ gtk_container_add (GTK_CONTAINER (event_box), vbox);
+ g_signal_connect (event_box, "button_press_event",
+ G_CALLBACK (event_box_label_pressed),
+ NULL);
+
+ label = gtk_label_new ("Click on this label");
+ gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, FALSE, 0);
+
+ button = gtk_button_new_with_label ("button in eventbox");
+ gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, FALSE, 0);
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (event_box_button_clicked),
+ NULL);
+
+
+ visible_window_check = gtk_check_button_new_with_label("Visible Window");
+ gtk_box_pack_start (GTK_BOX (box1), visible_window_check, FALSE, TRUE, 0);
+ g_signal_connect (visible_window_check, "toggled",
+ G_CALLBACK (event_box_toggle_visible_window), event_box);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (visible_window_check), FALSE);
+
+ above_child_check = gtk_check_button_new_with_label("Above Child");
+ gtk_box_pack_start (GTK_BOX (box1), above_child_check, FALSE, TRUE, 0);
+ g_signal_connect (above_child_check, "toggled",
+ G_CALLBACK (event_box_toggle_above_child), event_box);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (above_child_check), FALSE);
+
+ separator = gtk_hseparator_new ();
+ gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
+
+ box2 = gtk_vbox_new (FALSE, 10);
+ gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
+ gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
+
+ button = gtk_button_new_with_label ("close");
+ g_signal_connect_swapped (button, "clicked",
+ G_CALLBACK (gtk_widget_destroy),
+ window);
+ gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
+ GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
+ gtk_widget_grab_default (button);
+ }
+
+ if (!GTK_WIDGET_VISIBLE (window))
+ gtk_widget_show_all (window);
+ else
+ gtk_widget_destroy (window);
+}
+
+
/*
* GtkSizeGroup
*/
{ "dialog", create_dialog },
{ "display & screen", create_display_screen },
{ "entry", create_entry },
+ { "event box", create_event_box },
{ "event watcher", create_event_watcher },
{ "file selection", create_file_selection },
{ "flipping", create_flipping },
projects / ~andy / gtk / commitdiff