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Allow windows to be dragged by clicking on empty areas

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Allow windows to be dragged by clicking on empty areas in menubars
and toolbars. This is under theme control, via the GtkWidget::window-dragging
style property. The idea is that it makes sense to turn this on if a
theme makes the window frame and the menubar/toolbar appear visually
contiguous.

The main patch was written by Cody Russell, with a contribution by
Ayan George. See bug 611313.
This commit is contained in:
Matthias Clasen
2010-07-16 01:15:47 -04:00
parent 89d0955431
commit 7491e9e97a
4 changed files with 231 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

197
gtk/gtkseparatortoolitem.c
View File

@ -44,11 +44,11 @@
* Use gtk_separator_tool_item_new() to create a new #GtkSeparatorToolItem.
*/
#define MENU_ID "gtk-separator-tool-item-menu-id"
struct _GtkSeparatorToolItemPrivate
{
GdkWindow *event_window;
guint draw : 1;
};
@ -59,20 +59,28 @@ enum {
static gboolean gtk_separator_tool_item_create_menu_proxy (GtkToolItem *item);
static void gtk_separator_tool_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_separator_tool_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_separator_tool_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_separator_tool_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
GtkRequisition *requisition);
static void gtk_separator_tool_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_separator_tool_item_expose (GtkWidget *widget,
GdkEventExpose *event);
GdkEventExpose *event);
static void gtk_separator_tool_item_add (GtkContainer *container,
GtkWidget *child);
GtkWidget *child);
static gint get_space_size (GtkToolItem *tool_item);
static void gtk_separator_tool_item_realize (GtkWidget *widget);
static void gtk_separator_tool_item_unrealize (GtkWidget *widget);
static void gtk_separator_tool_item_map (GtkWidget *widget);
static void gtk_separator_tool_item_unmap (GtkWidget *widget);
static gboolean gtk_separator_tool_item_button_event (GtkWidget *widget,
GdkEventButton *event);
G_DEFINE_TYPE (GtkSeparatorToolItem, gtk_separator_tool_item, GTK_TYPE_TOOL_ITEM)
@ -86,8 +94,8 @@ get_space_size (GtkToolItem *tool_item)
if (GTK_IS_TOOLBAR (parent))
{
gtk_widget_style_get (parent,
"space-size", &space_size,
NULL);
"space-size", &space_size,
NULL);
}
return space_size;
@ -109,34 +117,45 @@ gtk_separator_tool_item_class_init (GtkSeparatorToolItemClass *class)
object_class->set_property = gtk_separator_tool_item_set_property;
object_class->get_property = gtk_separator_tool_item_get_property;
widget_class->size_request = gtk_separator_tool_item_size_request;
widget_class->size_allocate = gtk_separator_tool_item_size_allocate;
widget_class->expose_event = gtk_separator_tool_item_expose;
widget_class->realize = gtk_separator_tool_item_realize;
widget_class->unrealize = gtk_separator_tool_item_unrealize;
widget_class->map = gtk_separator_tool_item_map;
widget_class->unmap = gtk_separator_tool_item_unmap;
widget_class->button_press_event = gtk_separator_tool_item_button_event;
widget_class->button_release_event = gtk_separator_tool_item_button_event;
toolitem_class->create_menu_proxy = gtk_separator_tool_item_create_menu_proxy;
container_class->add = gtk_separator_tool_item_add;
g_object_class_install_property (object_class,
PROP_DRAW,
g_param_spec_boolean ("draw",
P_("Draw"),
P_("Whether the separator is drawn, or just blank"),
TRUE,
GTK_PARAM_READWRITE));
PROP_DRAW,
g_param_spec_boolean ("draw",
P_("Draw"),
P_("Whether the separator is drawn, or just blank"),
TRUE,
GTK_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (GtkSeparatorToolItemPrivate));
}
static void
gtk_separator_tool_item_init (GtkSeparatorToolItem *separator_item)
gtk_separator_tool_item_init (GtkSeparatorToolItem *separator_item)
{
separator_item->priv = G_TYPE_INSTANCE_GET_PRIVATE (separator_item,
GTK_TYPE_SEPARATOR_TOOL_ITEM,
GtkSeparatorToolItemPrivate);
separator_item->priv->draw = TRUE;
gtk_widget_set_has_window (GTK_WIDGET (separator_item), FALSE);
}
static void
gtk_separator_tool_item_add (GtkContainer *container,
GtkWidget *child)
GtkWidget *child)
{
g_warning ("attempt to add a child to an GtkSeparatorToolItem");
}
@ -155,9 +174,9 @@ gtk_separator_tool_item_create_menu_proxy (GtkToolItem *item)
static void
gtk_separator_tool_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSeparatorToolItem *item = GTK_SEPARATOR_TOOL_ITEM (object);
@ -174,9 +193,9 @@ gtk_separator_tool_item_set_property (GObject *object,
static void
gtk_separator_tool_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkSeparatorToolItem *item = GTK_SEPARATOR_TOOL_ITEM (object);
@ -193,7 +212,7 @@ gtk_separator_tool_item_get_property (GObject *object,
static void
gtk_separator_tool_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
GtkRequisition *requisition)
{
GtkToolItem *item = GTK_TOOL_ITEM (widget);
GtkOrientation orientation = gtk_tool_item_get_orientation (item);
@ -210,9 +229,119 @@ gtk_separator_tool_item_size_request (GtkWidget *widget,
}
}
static void
gtk_separator_tool_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
widget->allocation = *allocation;
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (priv->event_window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
}
static void
gtk_separator_tool_item_realize (GtkWidget *widget)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
GdkWindowAttr attributes;
gint attributes_mask;
gtk_widget_set_realized (widget, TRUE);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_ONLY;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y;
widget->window = gtk_widget_get_parent_window (widget);
g_object_ref (widget->window);
priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (priv->event_window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
}
static void
gtk_separator_tool_item_unrealize (GtkWidget *widget)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
if (priv->event_window)
{
gdk_window_set_user_data (priv->event_window, NULL);
gdk_window_destroy (priv->event_window);
priv->event_window = NULL;
}
GTK_WIDGET_CLASS (gtk_separator_tool_item_parent_class)->unrealize (widget);
}
static void
gtk_separator_tool_item_map (GtkWidget *widget)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
GTK_WIDGET_CLASS (gtk_separator_tool_item_parent_class)->map (widget);
if (priv->event_window)
gdk_window_show (priv->event_window);
}
static void
gtk_separator_tool_item_unmap (GtkWidget *widget)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
if (priv->event_window)
gdk_window_hide (priv->event_window);
GTK_WIDGET_CLASS (gtk_separator_tool_item_parent_class)->unmap (widget);
}
static gboolean
gtk_separator_tool_item_button_event (GtkWidget *widget,
GdkEventButton *event)
{
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
GtkSeparatorToolItemPrivate *priv = separator->priv;
/* We want window dragging to work on empty toolbar areas,
* so we only eat button events on visible separators
*/
return priv->draw;
}
#define DEFAULT_SPACE_SIZE 12
#define DEFAULT_SPACE_STYLE GTK_TOOLBAR_SPACE_LINE
#define SPACE_LINE_DIVISION 10.0
#define SPACE_LINE_START 2.0
#define SPACE_LINE_END 8.0
static gboolean
gtk_separator_tool_item_expose (GtkWidget *widget,
GdkEventExpose *event)
GdkEventExpose *event)
{
GtkToolbar *toolbar = NULL;
GtkSeparatorToolItem *separator = GTK_SEPARATOR_TOOL_ITEM (widget);
@ -221,12 +350,12 @@ gtk_separator_tool_item_expose (GtkWidget *widget,
if (priv->draw)
{
if (GTK_IS_TOOLBAR (widget->parent))
toolbar = GTK_TOOLBAR (widget->parent);
toolbar = GTK_TOOLBAR (widget->parent);
_gtk_toolbar_paint_space_line (widget, toolbar,
&(event->area), &widget->allocation);
&(event->area), &widget->allocation);
}
return FALSE;
}
@ -245,7 +374,7 @@ gtk_separator_tool_item_new (void)
GtkToolItem *self;
self = g_object_new (GTK_TYPE_SEPARATOR_TOOL_ITEM,
NULL);
NULL);
return self;
}
@ -282,7 +411,7 @@ gtk_separator_tool_item_get_draw (GtkSeparatorToolItem *item)
*/
void
gtk_separator_tool_item_set_draw (GtkSeparatorToolItem *item,
gboolean draw)
gboolean draw)
{
g_return_if_fail (GTK_IS_SEPARATOR_TOOL_ITEM (item));