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color-swatch: make this a no-window widget

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Instead of having an input/output GdkWindow, make the widget no-window,
and use a separate input-only window for events, and paint on the parent
window directly.
This commit is contained in:
Cosimo Cecchi 2012-02-20 13:45:58 +01:00
parent 8e4b17738e
commit 9160a68c7f
1 changed files with 77 additions and 13 deletions
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90
gtk/gtkcolorswatch.c
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@ -44,6 +44,8 @@ struct _GtkColorSwatchPrivate
guint contains_pointer : 1; guint contains_pointer : 1;
guint use_alpha : 1; guint use_alpha : 1;
guint selectable : 1; guint selectable : 1;
GdkWindow *event_window;
}; };
enum enum
@ -72,11 +74,8 @@ gtk_color_swatch_init (GtkColorSwatch *swatch)
GtkColorSwatchPrivate); GtkColorSwatchPrivate);
gtk_widget_set_can_focus (GTK_WIDGET (swatch), TRUE); gtk_widget_set_can_focus (GTK_WIDGET (swatch), TRUE);
gtk_widget_set_events (GTK_WIDGET (swatch), GDK_BUTTON_PRESS_MASK gtk_widget_set_has_window (GTK_WIDGET (swatch), FALSE);
| GDK_BUTTON_RELEASE_MASK
| GDK_EXPOSURE_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK);
swatch->priv->use_alpha = TRUE; swatch->priv->use_alpha = TRUE;
swatch->priv->selectable = TRUE; swatch->priv->selectable = TRUE;
} }
@ -510,32 +509,93 @@ swatch_button_release (GtkWidget *widget,
return FALSE; return FALSE;
} }
static void
swatch_map (GtkWidget *widget)
{
GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
GTK_WIDGET_CLASS (gtk_color_swatch_parent_class)->map (widget);
if (swatch->priv->event_window)
gdk_window_show (swatch->priv->event_window);
}
static void
swatch_unmap (GtkWidget *widget)
{
GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
if (swatch->priv->event_window)
gdk_window_hide (swatch->priv->event_window);
GTK_WIDGET_CLASS (gtk_color_swatch_parent_class)->unmap (widget);
}
static void static void
swatch_realize (GtkWidget *widget) swatch_realize (GtkWidget *widget)
{ {
GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
GtkAllocation allocation; GtkAllocation allocation;
GdkWindow *window; GdkWindow *window;
GdkWindowAttr attributes; GdkWindowAttr attributes;
gint attributes_mask; gint attributes_mask;
gtk_widget_set_realized (widget, TRUE);
gtk_widget_get_allocation (widget, &allocation); gtk_widget_get_allocation (widget, &allocation);
gtk_widget_set_realized (widget, TRUE);
attributes.window_type = GDK_WINDOW_CHILD; attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x; attributes.x = allocation.x;
attributes.y = allocation.y; attributes.y = allocation.y;
attributes.width = allocation.width; attributes.width = allocation.width;
attributes.height = allocation.height; attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT; attributes.wclass = GDK_INPUT_ONLY;
attributes.visual = gtk_widget_get_visual (widget); attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK; attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; attributes_mask = GDK_WA_X | GDK_WA_Y;
window = gdk_window_new (gtk_widget_get_parent_window (widget), window = gtk_widget_get_parent_window (widget);
&attributes, attributes_mask);
gdk_window_set_user_data (window, widget);
gtk_widget_set_window (widget, window); gtk_widget_set_window (widget, window);
g_object_ref (window);
swatch->priv->event_window =
gdk_window_new (window,
&attributes, attributes_mask);
gdk_window_set_user_data (swatch->priv->event_window, widget);
}
static void
swatch_unrealize (GtkWidget *widget)
{
GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
if (swatch->priv->event_window)
{
gdk_window_set_user_data (swatch->priv->event_window, NULL);
gdk_window_destroy (swatch->priv->event_window);
swatch->priv->event_window = NULL;
}
GTK_WIDGET_CLASS (gtk_color_swatch_parent_class)->unrealize (widget);
}
static void
swatch_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (swatch->priv->event_window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
} }
static gboolean static gboolean
@ -626,6 +686,10 @@ gtk_color_swatch_class_init (GtkColorSwatchClass *class)
widget_class->enter_notify_event = swatch_enter_notify; widget_class->enter_notify_event = swatch_enter_notify;
widget_class->leave_notify_event = swatch_leave_notify; widget_class->leave_notify_event = swatch_leave_notify;
widget_class->realize = swatch_realize; widget_class->realize = swatch_realize;
widget_class->unrealize = swatch_unrealize;
widget_class->map = swatch_map;
widget_class->unmap = swatch_unmap;
widget_class->size_allocate = swatch_size_allocate;
signals[ACTIVATE] = signals[ACTIVATE] =
g_signal_new ("activate", g_signal_new ("activate",