static void
gdl_dock_master_drag_motion (GdlDockItem *item,
gint root_x,
gint root_y,
gpointer data)
{
GdlDockMaster *master;
GdlDockRequest my_request, *request;
GdkWindow *window;
gint win_x, win_y;
gint x, y;
GdlDock *dock = NULL;
gboolean may_dock = FALSE;
g_return_if_fail (item != NULL && data != NULL);
master = GDL_DOCK_MASTER (data);
request = master->_priv->drag_request;
g_return_if_fail (GDL_DOCK_OBJECT (item) == request->applicant);
my_request = *request;
/* first look under the pointer */
window = gdk_window_at_pointer (&win_x, &win_y);
if (window) {
GtkWidget *widget;
/* ok, now get the widget who owns that window and see if we can
get to a GdlDock by walking up the hierarchy */
gdk_window_get_user_data (window, (gpointer) &widget);
if (GTK_IS_WIDGET (widget)) {
while (widget && (!GDL_IS_DOCK (widget) ||
GDL_DOCK_OBJECT_GET_MASTER (widget) != master))
widget = widget->parent;
if (widget) {
gint win_w, win_h;
/* verify that the pointer is still in that dock
(the user could have moved it) */
gdk_window_get_geometry (widget->window,
NULL, NULL, &win_w, &win_h, NULL);
gdk_window_get_origin (widget->window, &win_x, &win_y);
if (root_x >= win_x && root_x < win_x + win_w &&
root_y >= win_y && root_y < win_y + win_h)
dock = GDL_DOCK (widget);
}
}
}
if (dock) {
/* translate root coordinates into dock object coordinates
(i.e. widget coordinates) */
gdk_window_get_origin (GTK_WIDGET (dock)->window, &win_x, &win_y);
x = root_x - win_x;
y = root_y - win_y;
may_dock = gdl_dock_object_dock_request (GDL_DOCK_OBJECT (dock),
x, y, &my_request);
}
else {
GList *l;
/* try to dock the item in all the docks in the ring in turn */
for (l = master->toplevel_docks; l; l = l->next) {
dock = GDL_DOCK (l->data);
/* translate root coordinates into dock object coordinates
(i.e. widget coordinates) */
gdk_window_get_origin (GTK_WIDGET (dock)->window, &win_x, &win_y);
x = root_x - win_x;
y = root_y - win_y;
may_dock = gdl_dock_object_dock_request (GDL_DOCK_OBJECT (dock),
x, y, &my_request);
if (may_dock)
break;
}
}
if (!may_dock) {
GtkRequisition req;
/* Special case for GdlDockItems : they must respect the flags */
if(GDL_IS_DOCK_ITEM(item)
&& GDL_DOCK_ITEM(item)->behavior & GDL_DOCK_ITEM_BEH_NEVER_FLOATING)
return;
dock = NULL;
my_request.target = GDL_DOCK_OBJECT (
gdl_dock_object_get_toplevel (request->applicant));
my_request.position = GDL_DOCK_FLOATING;
gdl_dock_item_preferred_size (GDL_DOCK_ITEM (request->applicant), &req);
my_request.rect.width = req.width;
my_request.rect.height = req.height;
my_request.rect.x = root_x - GDL_DOCK_ITEM (request->applicant)->dragoff_x;
my_request.rect.y = root_y - GDL_DOCK_ITEM (request->applicant)->dragoff_y;
/* setup extra docking information */
if (G_IS_VALUE (&my_request.extra))
g_value_unset (&my_request.extra);
g_value_init (&my_request.extra, GDK_TYPE_RECTANGLE);
g_value_set_boxed (&my_request.extra, &my_request.rect);
}
/* if we want to enforce GDL_DOCK_ITEM_BEH_NEVER_FLOATING */
/* the item must remain attached to the controller, otherwise */
/* it could be inserted in another floating dock */
/* so check for the flag at this moment */
else if(GDL_IS_DOCK_ITEM(item)
&& GDL_DOCK_ITEM(item)->behavior & GDL_DOCK_ITEM_BEH_NEVER_FLOATING
&& dock != GDL_DOCK(master->controller))
return;
if (!(my_request.rect.x == request->rect.x &&
my_request.rect.y == request->rect.y &&
my_request.rect.width == request->rect.width &&
my_request.rect.height == request->rect.height &&
dock == master->_priv->rect_owner)) {
/* erase the previous rectangle */
if (master->_priv->rect_drawn)
gdl_dock_master_xor_rect (master);
}
/* set the new values */
*request = my_request;
master->_priv->rect_owner = dock;
/* draw the previous rectangle */
if (~master->_priv->rect_drawn)
gdl_dock_master_xor_rect (master);
}
static gboolean
gdl_dock_dock_request (GdlDockObject *object,
gint x,
gint y,
GdlDockRequest *request)
{
GdlDock *dock;
guint bw;
gint rel_x, rel_y;
GtkAllocation *alloc;
gboolean may_dock = FALSE;
GdlDockRequest my_request;
g_return_val_if_fail (GDL_IS_DOCK (object), FALSE);
/* we get (x,y) in our allocation coordinates system */
dock = GDL_DOCK (object);
/* Get dock size. */
alloc = &(GTK_WIDGET (dock)->allocation);
bw = GTK_CONTAINER (dock)->border_width;
/* Get coordinates relative to our allocation area. */
rel_x = x - alloc->x;
rel_y = y - alloc->y;
if (request)
my_request = *request;
/* Check if coordinates are in GdlDock widget. */
if (rel_x > 0 && rel_x < alloc->width &&
rel_y > 0 && rel_y < alloc->height) {
/* It's inside our area. */
may_dock = TRUE;
/* Set docking indicator rectangle to the GdlDock size. */
my_request.rect.x = alloc->x + bw;
my_request.rect.y = alloc->y + bw;
my_request.rect.width = alloc->width - 2*bw;
my_request.rect.height = alloc->height - 2*bw;
/* If GdlDock has no root item yet, set the dock itself as
possible target. */
if (!dock->root) {
my_request.position = GDL_DOCK_TOP;
my_request.target = object;
} else {
my_request.target = dock->root;
/* See if it's in the border_width band. */
if (rel_x < bw) {
my_request.position = GDL_DOCK_LEFT;
my_request.rect.width *= SPLIT_RATIO;
} else if (rel_x > alloc->width - bw) {
my_request.position = GDL_DOCK_RIGHT;
my_request.rect.x += my_request.rect.width * (1 - SPLIT_RATIO);
my_request.rect.width *= SPLIT_RATIO;
} else if (rel_y < bw) {
my_request.position = GDL_DOCK_TOP;
my_request.rect.height *= SPLIT_RATIO;
} else if (rel_y > alloc->height - bw) {
my_request.position = GDL_DOCK_BOTTOM;
my_request.rect.y += my_request.rect.height * (1 - SPLIT_RATIO);
my_request.rect.height *= SPLIT_RATIO;
} else {
/* Otherwise try our children. */
/* give them allocation coordinates (we are a
GTK_NO_WINDOW) widget */
may_dock = gdl_dock_object_dock_request (GDL_DOCK_OBJECT (dock->root),
x, y, &my_request);
}
}
}
if (may_dock && request)
*request = my_request;
return may_dock;
}
