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This commit is contained in:
Owen Taylor
2001-03-29 21:17:45 +00:00
parent 1c537e5853
commit c61a8f282f
28 changed files with 1521 additions and 227 deletions
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491
gdk/x11/gdkwindow-x11.c
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@ -931,10 +931,14 @@ gdk_window_resize (GdkWindow *window,
width, height);
else
{
GdkWindowImplX11 *impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (width != impl->width || height != impl->height)
private->resize_count += 1;
XResizeWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
width, height);
private->resize_count += 1;
}
}
}
@ -964,10 +968,14 @@ gdk_window_move_resize (GdkWindow *window,
_gdk_window_move_resize_child (window, x, y, width, height);
else
{
GdkWindowImplX11 *impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (width != impl->width || height != impl->height)
private->resize_count += 1;
XMoveResizeWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
x, y, width, height);
private->resize_count += 1;
}
}
}
@ -1344,7 +1352,7 @@ gdk_window_set_geometry_hints (GdkWindow *window,
if (geom_mask & GDK_HINT_WIN_GRAVITY)
{
size_hints.flags |= PWinGravity;
size_hints.width_inc = geometry->win_gravity;
size_hints.win_gravity = geometry->win_gravity;
}
/* FIXME: Would it be better to delete this property of
@ -1355,6 +1363,65 @@ gdk_window_set_geometry_hints (GdkWindow *window,
&size_hints);
}
static void
gdk_window_get_geometry_hints (GdkWindow *window,
GdkGeometry *geometry,
GdkWindowHints *geom_mask)
{
XSizeHints size_hints;
glong junk_size_mask = 0;
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (geometry != NULL);
g_return_if_fail (geom_mask != NULL);
*geom_mask = 0;
if (GDK_WINDOW_DESTROYED (window))
return;
if (!XGetWMNormalHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&size_hints,
&junk_size_mask))
return;
if (size_hints.flags & PMinSize)
{
*geom_mask |= GDK_HINT_MIN_SIZE;
geometry->min_width = size_hints.min_width;
geometry->min_height = size_hints.min_height;
}
if (size_hints.flags & PMaxSize)
{
*geom_mask |= GDK_HINT_MAX_SIZE;
geometry->max_width = MAX (size_hints.max_width, 1);
geometry->max_height = MAX (size_hints.max_height, 1);
}
if (size_hints.flags & PResizeInc)
{
*geom_mask |= GDK_HINT_RESIZE_INC;
geometry->width_inc = size_hints.width_inc;
geometry->height_inc = size_hints.height_inc;
}
if (size_hints.flags & PAspect)
{
*geom_mask |= GDK_HINT_ASPECT;
geometry->min_aspect = (gdouble) size_hints.min_aspect.x / (gdouble) size_hints.min_aspect.y;
geometry->max_aspect = (gdouble) size_hints.max_aspect.x / (gdouble) size_hints.max_aspect.y;
}
if (size_hints.flags & PWinGravity)
{
*geom_mask |= GDK_HINT_WIN_GRAVITY;
geometry->win_gravity = size_hints.win_gravity;
}
}
static gboolean
utf8_is_latin1 (const gchar *str)
{
@ -3236,3 +3303,421 @@ gdk_window_xid_at_coords (gint x,
return root;
}
static void
wmspec_moveresize (GdkWindow *window,
gint direction,
gint root_x,
gint root_y,
guint32 timestamp)
{
XEvent xev;
/* Release passive grab */
gdk_pointer_ungrab (timestamp);
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.display = gdk_display;
xev.xclient.window = GDK_WINDOW_XID (window);
xev.xclient.message_type = gdk_atom_intern ("_NET_WM_MOVERESIZE", FALSE);
xev.xclient.format = 32;
xev.xclient.data.l[0] = root_x;
xev.xclient.data.l[1] = root_y;
xev.xclient.data.l[2] = direction;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (gdk_display, gdk_root_window, False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
/* From the WM spec */
#define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
#define _NET_WM_MOVERESIZE_SIZE_TOP 1
#define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
#define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
#define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
#define _NET_WM_MOVERESIZE_SIZE_LEFT 7
#define _NET_WM_MOVERESIZE_MOVE 8
static void
wmspec_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
gint direction;
/* Let the compiler turn a switch into a table, instead
* of doing the table manually, this way is easier to verify.
*/
switch (edge)
{
case GDK_WINDOW_EDGE_NORTH_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_TOPLEFT;
break;
case GDK_WINDOW_EDGE_NORTH:
direction = _NET_WM_MOVERESIZE_SIZE_TOP;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_TOPRIGHT;
break;
case GDK_WINDOW_EDGE_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_LEFT;
break;
case GDK_WINDOW_EDGE_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_RIGHT;
break;
case GDK_WINDOW_EDGE_SOUTH_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT;
break;
case GDK_WINDOW_EDGE_SOUTH:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOM;
break;
case GDK_WINDOW_EDGE_SOUTH_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT;
break;
default:
g_warning ("gdk_window_begin_resize_drag: bad resize edge %d!",
edge);
return;
break;
}
wmspec_moveresize (window, direction, root_x, root_y, timestamp);
}
/* This is global for use in gdkevents-x11.c */
GdkWindow *_gdk_moveresize_window;
static GdkWindow *moveresize_emulation_window = NULL;
static gboolean is_resize = FALSE;
static GdkWindowEdge resize_edge;
static gint moveresize_button;
static gint moveresize_x;
static gint moveresize_y;
static gint moveresize_orig_x;
static gint moveresize_orig_y;
static gint moveresize_orig_width;
static gint moveresize_orig_height;
static GdkWindowHints moveresize_geom_mask = 0;
static GdkGeometry moveresize_geometry;
static Time moveresize_process_time;
static XEvent *moveresize_pending_event;
static void
update_pos (gint new_root_x,
gint new_root_y)
{
gint dx, dy;
dx = new_root_x - moveresize_x;
dy = new_root_y - moveresize_y;
if (is_resize)
{
gint w, h;
w = moveresize_orig_width;
h = moveresize_orig_height;
switch (resize_edge)
{
case GDK_WINDOW_EDGE_SOUTH_EAST:
w += dx;
h += dy;
break;
}
w = MAX (w, 1);
h = MAX (h, 1);
if (moveresize_geom_mask)
{
gdk_window_constrain_size (&moveresize_geometry,
moveresize_geom_mask,
w, h,
&w, &h);
}
gdk_window_resize (_gdk_moveresize_window, w, h);
}
else
{
gint x, y;
x = moveresize_orig_x + dx;
y = moveresize_orig_y + dy;
gdk_window_move (_gdk_moveresize_window, x, y);
}
}
static void
finish_drag (void)
{
gdk_window_destroy (moveresize_emulation_window);
moveresize_emulation_window = NULL;
_gdk_moveresize_window = NULL;
if (moveresize_pending_event)
{
g_free (moveresize_pending_event);
moveresize_pending_event = NULL;
}
}
static int
lookahead_motion_predicate (Display *display,
XEvent *event,
XPointer arg)
{
gboolean *seen_release = (gboolean *)arg;
if (*seen_release)
return False;
switch (event->xany.type)
{
case ButtonRelease:
*seen_release = TRUE;
break;
case MotionNotify:
moveresize_process_time = event->xmotion.time;
break;
default:
break;
}
return False;
}
static gboolean
moveresize_lookahead (XEvent *event)
{
XEvent tmp_event;
gboolean seen_release = FALSE;
if (moveresize_process_time)
{
if (event->xmotion.time == moveresize_process_time)
{
moveresize_process_time = 0;
return TRUE;
}
else
return FALSE;
}
XCheckIfEvent (gdk_display, &tmp_event,
lookahead_motion_predicate, (XPointer)&seen_release);
return moveresize_process_time == 0;
}
void
_gdk_moveresize_handle_event (XEvent *event)
{
guint button_mask = 0;
GdkWindowObject *window_private = (GdkWindowObject *) _gdk_moveresize_window;
button_mask = GDK_BUTTON1_MASK << (moveresize_button - 1);
switch (event->xany.type)
{
case MotionNotify:
if (window_private->resize_count > 0)
{
if (moveresize_pending_event)
*moveresize_pending_event = *event;
else
moveresize_pending_event = g_memdup (event, sizeof (XEvent));
break;
}
if (!moveresize_lookahead (event))
break;
update_pos (event->xmotion.x_root,
event->xmotion.y_root);
/* This should never be triggered in normal cases, but in the
* case where the drag started without an implicit grab being
* in effect, we could miss the release if it occurs before
* we grab the pointer; this ensures that we will never
* get a permanently stuck grab.
*/
if ((event->xmotion.state & button_mask) == 0)
finish_drag ();
break;
case ButtonRelease:
update_pos (event->xbutton.x_root,
event->xbutton.y_root);
if (event->xbutton.button == moveresize_button)
finish_drag ();
break;
}
}
void
_gdk_moveresize_configure_done (void)
{
XEvent *tmp_event;
if (moveresize_pending_event)
{
tmp_event = moveresize_pending_event;
moveresize_pending_event = NULL;
_gdk_moveresize_handle_event (tmp_event);
g_free (tmp_event);
}
}
static void
create_moveresize_window (guint32 timestamp)
{
GdkWindowAttr attributes;
gint attributes_mask;
GdkGrabStatus status;
g_assert (moveresize_emulation_window == NULL);
attributes.x = -100;
attributes.y = -100;
attributes.width = 10;
attributes.height = 10;
attributes.window_type = GDK_WINDOW_TEMP;
attributes.wclass = GDK_INPUT_ONLY;
attributes.override_redirect = TRUE;
attributes.event_mask = 0;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
moveresize_emulation_window =
gdk_window_new (NULL, &attributes, attributes_mask);
gdk_window_show (moveresize_emulation_window);
status = gdk_pointer_grab (moveresize_emulation_window,
FALSE,
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
FALSE,
NULL,
timestamp);
if (status != GDK_GRAB_SUCCESS)
{
/* If this fails, some other client has grabbed the window
* already.
*/
gdk_window_destroy (moveresize_emulation_window);
moveresize_emulation_window = NULL;
}
moveresize_process_time = 0;
}
static void
emulate_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
is_resize = TRUE;
moveresize_button = button;
resize_edge = edge;
moveresize_x = root_x;
moveresize_y = root_y;
_gdk_moveresize_window = GDK_WINDOW (g_object_ref (G_OBJECT (window)));
gdk_window_get_size (window, &moveresize_orig_width, &moveresize_orig_height);
moveresize_geom_mask = 0;
gdk_window_get_geometry_hints (window,
&moveresize_geometry,
&moveresize_geom_mask);
create_moveresize_window (timestamp);
}
static void
emulate_move_drag (GdkWindow *window,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
is_resize = FALSE;
moveresize_button = button;
moveresize_x = root_x;
moveresize_y = root_y;
_gdk_moveresize_window = GDK_WINDOW (g_object_ref (G_OBJECT (window)));
gdk_window_get_deskrelative_origin (_gdk_moveresize_window,
&moveresize_orig_x,
&moveresize_orig_y);
create_moveresize_window (timestamp);
}
void
gdk_window_begin_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (moveresize_emulation_window == NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_net_wm_supports (gdk_atom_intern ("_NET_WM_MOVERESIZE", FALSE)))
wmspec_resize_drag (window, edge, button, root_x, root_y, timestamp);
else
emulate_resize_drag (window, edge, button, root_x, root_y, timestamp);
}
void
gdk_window_begin_move_drag (GdkWindow *window,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (moveresize_emulation_window == NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_net_wm_supports (gdk_atom_intern ("_NET_WM_MOVERESIZE", FALSE)))
wmspec_moveresize (window, _NET_WM_MOVERESIZE_MOVE,
root_x, root_y, timestamp);
else
emulate_move_drag (window, button, root_x, root_y, timestamp);
}