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gtk2/gdk/win32/gdkgeometry-win32.c
Tor Lillqvist 09f777e5ea Fix for #108007, #112402, #117042: There was confusion in gdk/win32 at 
2003-07-29  Tor Lillqvist  <tml@iki.fi>

	Fix for #108007, #112402, #117042: There was confusion in
	gdk/win32 at various places whether a window position refers to
	the decoration position or the client area position. Also whether
	window size includes decorations or not.

	The correct interpretation apparently is that in GDK (like in
	X11), a top-level window position means the decoration's position,
	but size means the window's inner size (client area size). In the
	Win32 API, the window size usually includes the decorations,
	though.

	* gdk/win32/gdkevents-win32.c (decode_key_lparam): Move inside
	#ifdef G_ENABLE_DEBUG.
	(handle_configure_event): New function, generates GDK_CONFIGURE
	events from WM_SIZE and WM_MOVE messages. Even if no event is
	generated because of the event mask, still set the private
	position and size fields. Calculate position and size correctly.
	(gdk_event_translate): Call handle_configure_event().

	* gdk/win32/gdkgeometry-win32.c: Cosmetics.

	* gdk/win32/gdkwindow-win32.c: Use GDI_CALL() and API_CALL()
	macros. Cosmetic debugging output changes.
	(SafeAdjustWindowRectEx): Remove. If an application wants to
	locate a window outside of the screen, it's not GDK's business to
	prevent it. And anyway, with multiple monitors, negative
	coordinates are perfectly normal.
	(gdk_window_new): Adjust the window size for decorations after
	_gdk_window_init_position() has done its job. (But the big window
	code currently is presumably broken on Win32 anyway.)
	(gdk_window_move): The position passed in is supposed to be that
	of the window border, so don't need to adjust for decorations.
	(gdk_window_resize, gdk_window_move_resize): Simplify somewhat.
2003-07-29 23:35:40 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* gdkgeometry-win32.c: emulation of 32 bit coordinates within the
* limits of Win32 GDI. Just a copy of the X11 version, more or less.
* Probably totally bogus in functionality. Just a quick hack, to
* get the thing to build. Need to write some test code for it.
* Well, need to find out what it is supposed to do first ;-)
*
* The X11 version by Owen Taylor <otaylor@redhat.com>
* Copyright Red Hat, Inc. 2000
* Win32 hack by Tor Lillqvist <tml@iki.fi>
* and Hans Breuer <hans@breuer.org>
*/
#include "gdk.h" /* For gdk_rectangle_intersect */
#include "gdkregion.h"
#include "gdkregion-generic.h"
#include "gdkprivate-win32.h"
#define SIZE_LIMIT 32000
typedef struct _GdkWindowQueueItem GdkWindowQueueItem;
typedef struct _GdkWindowParentPos GdkWindowParentPos;
#if 0
typedef enum {
GDK_WINDOW_QUEUE_TRANSLATE,
GDK_WINDOW_QUEUE_ANTIEXPOSE
} GdkWindowQueueType;
struct _GdkWindowQueueItem
{
GdkWindow *window;
gulong serial;
GdkWindowQueueType type;
union {
struct {
gint dx;
gint dy;
} translate;
struct {
GdkRegion *area;
} antiexpose;
} u;
};
#endif
struct _GdkWindowParentPos
{
gint x;
gint y;
gint win32_x;
gint win32_y;
GdkRectangle clip_rect;
};
static void gdk_window_compute_position (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info);
static void gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_premove (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_postmove (GdkWindow *window,
GdkWindowParentPos *parent_pos);
static void gdk_window_queue_translation (GdkWindow *window,
gint dx,
gint dy);
static void gdk_window_tmp_unset_bg (GdkWindow *window);
static void gdk_window_tmp_reset_bg (GdkWindow *window);
static void gdk_window_clip_changed (GdkWindow *window,
GdkRectangle *old_clip,
GdkRectangle *new_clip);
#if 0
static GSList *translate_queue = NULL;
#endif
void
_gdk_windowing_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset)
{
GdkWindowImplWin32 *impl =
GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
*x_offset = impl->position_info.x_offset;
*y_offset = impl->position_info.y_offset;
}
void
_gdk_window_init_position (GdkWindow *window)
{
GdkWindowParentPos parent_pos;
GdkWindowImplWin32 *impl;
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
gdk_window_compute_parent_pos (impl, &parent_pos);
gdk_window_compute_position (impl, &parent_pos, &impl->position_info);
}
static void
gdk_window_copy_area_scroll (GdkWindow *window,
GdkRectangle *dest_rect,
gint dx,
gint dy)
{
#if 0
GdkWindowObject *obj = GDK_WINDOW_OBJECT (window);
GList *tmp_list;
#endif
GDK_NOTE (MISC, g_print ("gdk_window_copy_area_scroll: %p %s %d,%d\n",
GDK_WINDOW_HWND (window),
_gdk_win32_gdkrectangle_to_string (dest_rect),
dx, dy));
if (dest_rect->width > 0 && dest_rect->height > 0)
{
RECT clipRect;
#ifdef G_ENABLE_DEBUG
RECT update_rect;
#endif
clipRect.left = dest_rect->x;
clipRect.top = dest_rect->y;
clipRect.right = clipRect.left + dest_rect->width;
clipRect.bottom = clipRect.top + dest_rect->height;
if (dx < 0)
clipRect.right -= dx;
else
clipRect.left -= dx;
if (dy < 0)
clipRect.bottom -= dy;
else
clipRect.top -= dy;
gdk_window_queue_translation (window, dx, dy);
if (!ScrollWindowEx (GDK_WINDOW_HWND (window),
dx, dy, /* in: scroll offsets */
NULL, /* in: scroll rect, NULL == entire client area */
&clipRect, /* in: restrict to */
NULL, /* in: update region */
NULL, /* out: update rect */
SW_INVALIDATE | SW_SCROLLCHILDREN))
WIN32_API_FAILED ("ScrollWindowEx");
GDK_NOTE (EVENTS,
(GetUpdateRect (GDK_WINDOW_HWND (window), &update_rect, FALSE),
g_print ("gdk_window_copy_area_scroll: post-scroll update rect: %s\n",
_gdk_win32_rect_to_string (&update_rect))));
}
#if 0 /* Not needed, ScrollWindowEx also scrolls the children. */
tmp_list = obj->children;
while (tmp_list)
{
GdkWindow *child = GDK_WINDOW (tmp_list->data);
GdkWindowObject *child_obj = GDK_WINDOW_OBJECT (child);
gdk_window_move (child, child_obj->x + dx, child_obj->y + dy);
tmp_list = tmp_list->next;
}
#endif
}
static void
compute_intermediate_position (GdkWin32PositionInfo *position_info,
GdkWin32PositionInfo *new_info,
gint d_xoffset,
gint d_yoffset,
GdkRectangle *new_position)
{
gint new_x0, new_x1, new_y0, new_y1;
/* Wrap d_xoffset, d_yoffset into [-32768,32767] range. For the
* purposes of subwindow movement, it doesn't matter if we are
* off by a factor of 65536, and if we don't do this range
* reduction, we'll end up with invalid widths.
*/
d_xoffset = (gint16)d_xoffset;
d_yoffset = (gint16)d_yoffset;
if (d_xoffset < 0)
{
new_x0 = position_info->x + d_xoffset;
new_x1 = position_info->x + position_info->width;
}
else
{
new_x0 = position_info->x;
new_x1 = position_info->x + new_info->width + d_xoffset;
}
new_position->x = new_x0;
new_position->width = new_x1 - new_x0;
if (d_yoffset < 0)
{
new_y0 = position_info->y + d_yoffset;
new_y1 = position_info->y + position_info->height;
}
else
{
new_y0 = position_info->y;
new_y1 = position_info->y + new_info->height + d_yoffset;
}
new_position->y = new_y0;
new_position->height = new_y1 - new_y0;
}
#if 0
static void
gdk_window_guffaw_scroll (GdkWindow *window,
gint dx,
gint dy)
{
GdkWindowObject *obj = GDK_WINDOW_OBJECT (window);
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
gint d_xoffset = -dx;
gint d_yoffset = -dy;
GdkRectangle new_position;
GdkWin32PositionInfo new_info;
GdkWindowParentPos parent_pos;
GList *tmp_list;
GDK_NOTE (EVENTS, g_print ("gdk_window_guffaw_scroll: %p %d,%d\n",
GDK_WINDOW_HWND (window), dx, dy));
gdk_window_compute_parent_pos (impl, &parent_pos);
gdk_window_compute_position (impl, &parent_pos, &new_info);
parent_pos.x += obj->x;
parent_pos.y += obj->y;
parent_pos.win32_x += new_info.x;
parent_pos.win32_y += new_info.y;
parent_pos.clip_rect = new_info.clip_rect;
gdk_window_tmp_unset_bg (window);
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
gdk_window_set_static_gravities (window, TRUE);
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
/* XXX: this is only translating the X11 code. Don't know why the
* window movement needs to be done in three steps there, and here ??
*/
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOACTIVATE | SWP_NOZORDER))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
{
GDK_WINDOW_OBJECT(tmp_list->data)->x -= d_xoffset;
GDK_WINDOW_OBJECT(tmp_list->data)->y -= d_yoffset;
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x - d_xoffset, new_position.y - d_yoffset, 1, 1,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE))
WIN32_API_FAILED ("SetWindowPos");
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
impl->position_info.x, impl->position_info.y,
impl->position_info.width, impl->position_info.height,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE))
WIN32_API_FAILED ("SetWindowPos");
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
impl->position_info = new_info;
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
}
#endif
void
gdk_window_scroll (GdkWindow *window,
gint dx,
gint dy)
{
#if 0
gboolean can_guffaw_scroll = FALSE;
#endif
GdkRegion *invalidate_region;
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRectangle dest_rect;
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
GDK_NOTE (EVENTS, g_print ("gdk_window_scroll: %p %d,%d\n",
GDK_WINDOW_HWND (window), dx, dy));
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
if (dx == 0 && dy == 0)
return;
/* Move the current invalid region */
if (obj->update_area)
gdk_region_offset (obj->update_area, dx, dy);
invalidate_region = gdk_region_rectangle (&impl->position_info.clip_rect);
dest_rect = impl->position_info.clip_rect;
dest_rect.x += dx;
dest_rect.y += dy;
gdk_rectangle_intersect (&dest_rect, &impl->position_info.clip_rect, &dest_rect);
if (dest_rect.width > 0 && dest_rect.height > 0)
{
GdkRegion *tmp_region;
tmp_region = gdk_region_rectangle (&dest_rect);
gdk_region_subtract (invalidate_region, tmp_region);
gdk_region_destroy (tmp_region);
}
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
#if 0
/* We can guffaw scroll if we are a child window, and the parent
* does not extend beyond our edges. Otherwise, we use XCopyArea, then
* move any children later
*/
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
{
GdkWindowImplWin32 *parent_impl = GDK_WINDOW_IMPL_WIN32 (obj->parent->impl);
can_guffaw_scroll = ((dx == 0 || (obj->x <= 0 && obj->x + impl->width >= parent_impl->width)) &&
(dy == 0 || (obj->y <= 0 && obj->y + impl->height >= parent_impl->height)));
}
if (!obj->children || !can_guffaw_scroll)
gdk_window_copy_area_scroll (window, &dest_rect, dx, dy);
else
gdk_window_guffaw_scroll (window, dx, dy);
#else
gdk_window_copy_area_scroll (window, &dest_rect, dx, dy);
#endif
}
void
_gdk_window_move_resize_child (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkWin32PositionInfo new_info;
GdkWindowParentPos parent_pos;
GList *tmp_list;
gint d_xoffset, d_yoffset;
gint dx, dy;
gboolean is_move;
gboolean is_resize;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
GDK_NOTE (MISC, g_print ("_gdk_window_move_resize_child: %s@+%d+%d %dx%d@+%d+%d\n",
_gdk_win32_drawable_description (window),
obj->x, obj->y,
width, height, x, y));
dx = x - obj->x;
dy = y - obj->y;
is_move = dx != 0 || dy != 0;
is_resize = impl->width != width || impl->height != height;
if (!is_move && !is_resize)
{
GDK_NOTE (MISC, g_print ("...neither move or resize\n"));
return;
}
GDK_NOTE (MISC, g_print ("...%s%s\n", is_move ? "is_move " : "", is_resize ? "is_resize" : ""));
obj->x = x;
obj->y = y;
impl->width = width;
impl->height = height;
gdk_window_compute_parent_pos (impl, &parent_pos);
gdk_window_compute_position (impl, &parent_pos, &new_info);
gdk_window_clip_changed (window, &impl->position_info.clip_rect, &new_info.clip_rect);
parent_pos.x += obj->x;
parent_pos.y += obj->y;
parent_pos.win32_x += new_info.x;
parent_pos.win32_y += new_info.y;
parent_pos.clip_rect = new_info.clip_rect;
d_xoffset = new_info.x_offset - impl->position_info.x_offset;
d_yoffset = new_info.y_offset - impl->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
GdkRectangle new_position;
GDK_NOTE (MISC, g_print ("...d_xoffset=%d d_yoffset=%d\n", d_xoffset, d_yoffset));
gdk_window_set_static_gravities (window, TRUE);
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
GDK_NOTE (MISC, g_print ("...SetWindowPos(%p,%s)\n",
GDK_WINDOW_HWND (window),
_gdk_win32_gdkrectangle_to_string (&new_position)));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOACTIVATE | SWP_NOZORDER))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
GDK_NOTE (MISC, g_print ("...SetWindowPos(%p,0x0@+%d+%d)\n",
GDK_WINDOW_HWND (window),
new_position.x + dx, new_position.y + dy));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x + dx, new_position.y + dy, 0, 0,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
GDK_NOTE (MISC, g_print ("...SetWindowPos(%p,%dx%d@+%d+%d)\n",
GDK_WINDOW_HWND (window),
new_info.width, new_info.height,
new_info.x, new_info.y));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW))
WIN32_API_FAILED ("SetWindowPos");
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
if (!impl->position_info.mapped && new_info.mapped && GDK_WINDOW_IS_MAPPED (obj))
{
GDK_NOTE (MISC, g_print ("...ShowWindow(%p, SW_SHOWNA)\n",
GDK_WINDOW_HWND (window)));
ShowWindow (GDK_WINDOW_HWND (window), SW_SHOWNA);
}
impl->position_info = new_info;
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
}
else
{
if (is_move && is_resize)
gdk_window_set_static_gravities (window, FALSE);
if (impl->position_info.mapped && !new_info.mapped)
{
GDK_NOTE (MISC, g_print ("...ShowWindow(%p, SW_HIDE)\n",
GDK_WINDOW_HWND (window)));
ShowWindow (GDK_WINDOW_HWND (window), SW_HIDE);
}
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
GDK_NOTE (MISC, g_print ("...SetWindowPos(%p,%dx%d@+%d+%d)\n",
GDK_WINDOW_HWND (window),
new_info.width, new_info.height,
new_info.x, new_info.y));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOACTIVATE | SWP_NOZORDER |
(is_move ? 0 : SWP_NOMOVE) |
(is_resize ? 0 : SWP_NOSIZE)))
WIN32_API_FAILED ("SetWindowPos");
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &parent_pos);
tmp_list = tmp_list->next;
}
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
if (!impl->position_info.mapped && new_info.mapped && GDK_WINDOW_IS_MAPPED (obj))
{
GDK_NOTE (MISC, g_print ("...ShowWindow(%p, SW_SHOWNA)\n",
GDK_WINDOW_HWND (window)));
ShowWindow (GDK_WINDOW_HWND (window), SW_SHOWNA);
}
impl->position_info = new_info;
}
}
static void
gdk_window_compute_position (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos,
GdkWin32PositionInfo *info)
{
GdkWindowObject *wrapper;
int parent_x_offset;
int parent_y_offset;
g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (window));
wrapper = GDK_WINDOW_OBJECT (GDK_DRAWABLE_IMPL_WIN32 (window)->wrapper);
info->big = FALSE;
if (window->width <= SIZE_LIMIT)
{
info->width = window->width;
info->x = parent_pos->x + wrapper->x - parent_pos->win32_x;
}
else
{
info->big = TRUE;
info->width = SIZE_LIMIT;
if (parent_pos->x + wrapper->x < -(SIZE_LIMIT/2))
{
if (parent_pos->x + wrapper->x + window->width < (SIZE_LIMIT/2))
info->x = parent_pos->x + wrapper->x + window->width - info->width - parent_pos->win32_x;
else
info->x = -(SIZE_LIMIT/2) - parent_pos->win32_x;
}
else
info->x = parent_pos->x + wrapper->x - parent_pos->win32_x;
}
if (window->height <= SIZE_LIMIT)
{
info->height = window->height;
info->y = parent_pos->y + wrapper->y - parent_pos->win32_y;
}
else
{
info->big = TRUE;
info->height = SIZE_LIMIT;
if (parent_pos->y + wrapper->y < -(SIZE_LIMIT/2))
{
if (parent_pos->y + wrapper->y + window->height < (SIZE_LIMIT/2))
info->y = parent_pos->y + wrapper->y + window->height - info->height - parent_pos->win32_y;
else
info->y = -(SIZE_LIMIT/2) - parent_pos->win32_y;
}
else
info->y = parent_pos->y + wrapper->y - parent_pos->win32_y;
}
parent_x_offset = parent_pos->win32_x - parent_pos->x;
parent_y_offset = parent_pos->win32_y - parent_pos->y;
info->x_offset = parent_x_offset + info->x - wrapper->x;
info->y_offset = parent_y_offset + info->y - wrapper->y;
/* We don't considering the clipping of toplevel windows and their immediate children
* by their parents, and simply always map those windows.
*/
if (parent_pos->clip_rect.width == G_MAXINT)
info->mapped = TRUE;
/* Check if the window would wrap around into the visible space in either direction */
else if (info->x + parent_x_offset < parent_pos->clip_rect.x + parent_pos->clip_rect.width - 65536 ||
info->x + info->width + parent_x_offset > parent_pos->clip_rect.x + 65536 ||
info->y + parent_y_offset < parent_pos->clip_rect.y + parent_pos->clip_rect.height - 65536 ||
info->y + info->height + parent_y_offset > parent_pos->clip_rect.y + 65536)
info->mapped = FALSE;
else
info->mapped = TRUE;
info->no_bg = FALSE;
if (GDK_WINDOW_TYPE (wrapper) == GDK_WINDOW_CHILD)
{
info->clip_rect.x = wrapper->x;
info->clip_rect.y = wrapper->y;
info->clip_rect.width = window->width;
info->clip_rect.height = window->height;
gdk_rectangle_intersect (&info->clip_rect, &parent_pos->clip_rect, &info->clip_rect);
info->clip_rect.x -= wrapper->x;
info->clip_rect.y -= wrapper->y;
}
else
{
info->clip_rect.x = 0;
info->clip_rect.y = 0;
info->clip_rect.width = G_MAXINT;
info->clip_rect.height = G_MAXINT;
}
}
static void
gdk_window_compute_parent_pos (GdkWindowImplWin32 *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowObject *wrapper;
GdkWindowObject *parent;
GdkRectangle tmp_clip;
int clip_xoffset = 0;
int clip_yoffset = 0;
g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (window));
wrapper = GDK_WINDOW_OBJECT (GDK_DRAWABLE_IMPL_WIN32 (window)->wrapper);
parent_pos->x = 0;
parent_pos->y = 0;
parent_pos->win32_x = 0;
parent_pos->win32_y = 0;
/* We take a simple approach here and simply consider toplevel
* windows not to clip their children on the right/bottom, since the
* size of toplevel windows is not directly under our
* control. Clipping only really matters when scrolling and
* generally we aren't going to be moving the immediate child of a
* toplevel beyond the bounds of that toplevel.
*
* We could go ahead and recompute the clips of toplevel windows and
* their descendents when we receive size notification, but it would
* probably not be an improvement in most cases.
*/
parent_pos->clip_rect.x = 0;
parent_pos->clip_rect.y = 0;
parent_pos->clip_rect.width = G_MAXINT;
parent_pos->clip_rect.height = G_MAXINT;
parent = (GdkWindowObject *)wrapper->parent;
while (parent && parent->window_type == GDK_WINDOW_CHILD)
{
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (parent->impl);
tmp_clip.x = - clip_xoffset;
tmp_clip.y = - clip_yoffset;
tmp_clip.width = impl->width;
tmp_clip.height = impl->height;
gdk_rectangle_intersect (&parent_pos->clip_rect, &tmp_clip, &parent_pos->clip_rect);
parent_pos->x += parent->x;
parent_pos->y += parent->y;
parent_pos->win32_x += impl->position_info.x;
parent_pos->win32_y += impl->position_info.y;
clip_xoffset += parent->x;
clip_yoffset += parent->y;
parent = (GdkWindowObject *)parent->parent;
}
}
static void
gdk_window_premove (GdkWindow *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkWin32PositionInfo new_info;
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
gdk_window_compute_position (impl, parent_pos, &new_info);
gdk_window_clip_changed (window, &impl->position_info.clip_rect, &new_info.clip_rect);
this_pos.x = parent_pos->x + obj->x;
this_pos.y = parent_pos->y + obj->y;
this_pos.win32_x = parent_pos->win32_x + new_info.x;
this_pos.win32_y = parent_pos->win32_y + new_info.y;
this_pos.clip_rect = new_info.clip_rect;
if (impl->position_info.mapped && !new_info.mapped)
ShowWindow (GDK_WINDOW_HWND (window), SW_HIDE);
d_xoffset = new_info.x_offset - impl->position_info.x_offset;
d_yoffset = new_info.y_offset - impl->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
GdkRectangle new_position;
if (d_xoffset < 0 || d_yoffset < 0)
gdk_window_queue_translation (window, MIN (d_xoffset, 0), MIN (d_yoffset, 0));
compute_intermediate_position (&impl->position_info, &new_info, d_xoffset, d_yoffset,
&new_position);
GDK_NOTE (MISC, g_print ("gdk_window_premove: %s@+%d+%d\n"
"...SetWindowPos(%s)\n",
_gdk_win32_drawable_description (window),
obj->x, obj->y,
_gdk_win32_gdkrectangle_to_string (&new_position)));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_position.x, new_position.y,
new_position.width, new_position.height,
SWP_NOREDRAW | SWP_NOZORDER | SWP_NOACTIVATE))
WIN32_API_FAILED ("SetWindowPos");
}
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_premove (tmp_list->data, &this_pos);
tmp_list = tmp_list->next;
}
}
static void
gdk_window_postmove (GdkWindow *window,
GdkWindowParentPos *parent_pos)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkWin32PositionInfo new_info;
GList *tmp_list;
gint d_xoffset, d_yoffset;
GdkWindowParentPos this_pos;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
gdk_window_compute_position (impl, parent_pos, &new_info);
this_pos.x = parent_pos->x + obj->x;
this_pos.y = parent_pos->y + obj->y;
this_pos.win32_x = parent_pos->win32_x + new_info.x;
this_pos.win32_y = parent_pos->win32_y + new_info.y;
this_pos.clip_rect = new_info.clip_rect;
d_xoffset = new_info.x_offset - impl->position_info.x_offset;
d_yoffset = new_info.y_offset - impl->position_info.y_offset;
if (d_xoffset != 0 || d_yoffset != 0)
{
if (d_xoffset > 0 || d_yoffset > 0)
gdk_window_queue_translation (window, MAX (d_xoffset, 0), MAX (d_yoffset, 0));
GDK_NOTE (MISC, g_print ("gdk_window_postmove: %s@+%d+%d\n"
"...SetWindowPos(%dx%d@+%d+%d)\n",
_gdk_win32_drawable_description (window),
obj->x, obj->y,
new_info.width, new_info.height,
new_info.x, new_info.y));
if (!SetWindowPos (GDK_WINDOW_HWND (window), NULL,
new_info.x, new_info.y,
new_info.width, new_info.height,
SWP_NOREDRAW | SWP_NOZORDER | SWP_NOACTIVATE))
WIN32_API_FAILED ("SetWindowPos");
}
if (!impl->position_info.mapped && new_info.mapped && GDK_WINDOW_IS_MAPPED (obj))
ShowWindow (GDK_WINDOW_HWND (window), SW_SHOWNA);
if (impl->position_info.no_bg)
gdk_window_tmp_reset_bg (window);
impl->position_info = new_info;
tmp_list = obj->children;
while (tmp_list)
{
gdk_window_postmove (tmp_list->data, &this_pos);
tmp_list = tmp_list->next;
}
}
#if 0
static void
gdk_window_queue_append (GdkWindow *window,
GdkWindowQueueItem *item)
{
if (g_slist_length (translate_queue) >= 128)
{
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
GDK_NOTE (EVENTS, g_print ("gdk_window_queue_append: length >= 128\n"));
_gdk_window_process_expose (window, _gdk_win32_get_next_tick (0),
&impl->position_info.clip_rect);
}
item->window = window;
item->serial = GetTickCount ();
GDK_NOTE (EVENTS, (g_print ("gdk_window_queue_append: %s %p %ld ",
(item->type == GDK_WINDOW_QUEUE_TRANSLATE ?
"TRANSLATE" : "ANTIEXPOSE"),
GDK_WINDOW_HWND (window),
item->serial),
(item->type == GDK_WINDOW_QUEUE_TRANSLATE ?
g_print ("%d,%d\n",
item->u.translate.dx, item->u.translate.dy) :
g_print ("%s\n",
_gdk_win32_gdkregion_to_string (item->u.antiexpose.area)))));
g_object_ref (window);
translate_queue = g_slist_append (translate_queue, item) ;
}
#endif
static void
gdk_window_queue_translation (GdkWindow *window,
gint dx,
gint dy)
{
#if 0
GdkWindowQueueItem *item = g_new (GdkWindowQueueItem, 1);
item->type = GDK_WINDOW_QUEUE_TRANSLATE;
item->u.translate.dx = dx;
item->u.translate.dy = dy;
gdk_window_queue_append (window, item);
#endif
}
gboolean
_gdk_windowing_window_queue_antiexpose (GdkWindow *window,
GdkRegion *area)
{
HRGN hrgn = _gdk_win32_gdkregion_to_hrgn (area, 0, 0);
GDK_NOTE (EVENTS, g_print ("_gdk_windowing_window_queue_antiexpose: ValidateRgn %p %s\n",
GDK_WINDOW_HWND (window),
_gdk_win32_gdkregion_to_string (area)));
ValidateRgn (GDK_WINDOW_HWND (window), hrgn);
DeleteObject (hrgn);
return FALSE;
}
void
_gdk_window_process_expose (GdkWindow *window,
GdkRegion *invalidate_region)
{
GdkWindowImplWin32 *impl;
GdkRegion *clip_region;
#if 0
GSList *tmp_list = translate_queue;
#endif
impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
GDK_NOTE (EVENTS, g_print ("_gdk_window_process_expose: %p %s\n",
GDK_WINDOW_HWND (window),
_gdk_win32_gdkregion_to_string (invalidate_region)));
#if 0
while (tmp_list)
{
GdkWindowQueueItem *item = tmp_list->data;
tmp_list = tmp_list->next;
if (serial < item->serial)
{
if (item->window == window)
{
if (item->type == GDK_WINDOW_QUEUE_TRANSLATE)
{
GDK_NOTE (EVENTS, g_print ("...item %ld xlating region by %d,%d\n",
item->serial,
item->u.translate.dx, item->u.translate.dy));
gdk_region_offset (invalidate_region, - item->u.translate.dx, - item->u.translate.dy);
}
else /* anti-expose */
{
#ifdef G_ENABLE_DEBUG
GdkRectangle rect;
GDK_NOTE (EVENTS,
(gdk_region_get_clipbox (item->u.antiexpose.area, &rect),
g_print ("...item %ld antiexposing %s\n",
item->serial,
_gdk_win32_gdkrectangle_to_string (&rect))));
#endif
gdk_region_subtract (invalidate_region, item->u.antiexpose.area);
}
}
}
else
{
GSList *tmp_link = translate_queue;
GDK_NOTE (EVENTS, g_print ("...item %ld being removed\n", item->serial));
translate_queue = g_slist_remove_link (translate_queue, translate_queue);
g_object_unref (item->window);
if (item->type == GDK_WINDOW_QUEUE_ANTIEXPOSE)
gdk_region_destroy (item->u.antiexpose.area);
g_free (item);
g_slist_free_1 (tmp_link);
}
}
GDK_NOTE (EVENTS, g_print ("...queue length now %d\n", g_slist_length (translate_queue)));
#endif
clip_region = gdk_region_rectangle (&impl->position_info.clip_rect);
gdk_region_intersect (invalidate_region, clip_region);
if (!gdk_region_empty (invalidate_region))
gdk_window_invalidate_region (window, invalidate_region, FALSE);
gdk_region_destroy (clip_region);
}
static void
gdk_window_tmp_unset_bg (GdkWindow *window)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
impl->position_info.no_bg = TRUE;
/*
* The X version sets background = None to avoid updateing for a moment.
* Not sure if this could really emulate it.
*/
if (obj->bg_pixmap != GDK_NO_BG)
/* handled in WM_ERASEBKGRND proceesing */;
}
static void
gdk_window_tmp_reset_bg (GdkWindow *window)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
impl->position_info.no_bg = FALSE;
if (obj->bg_pixmap == GDK_NO_BG)
return;
if (obj->bg_pixmap)
{
/* ??? */
}
else
{
/* ??? */
}
}
static void
gdk_window_clip_changed (GdkWindow *window,
GdkRectangle *old_clip,
GdkRectangle *new_clip)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRegion *old_clip_region;
GdkRegion *new_clip_region;
if (((GdkWindowObject *)window)->input_only)
return;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
old_clip_region = gdk_region_rectangle (old_clip);
new_clip_region = gdk_region_rectangle (new_clip);
/* We need to update this here because gdk_window_invalidate_region makes
* use if it (through gdk_drawable_get_visible_region
*/
impl->position_info.clip_rect = *new_clip;
/* Trim invalid region of window to new clip rectangle
*/
if (obj->update_area)
gdk_region_intersect (obj->update_area, new_clip_region);
/* Invalidate newly exposed portion of window
*/
gdk_region_subtract (new_clip_region, old_clip_region);
if (!gdk_region_empty (new_clip_region))
{
gdk_window_tmp_unset_bg (window);
GDK_NOTE (EVENTS,
g_print ("gdk_window_clip_changed: invalidating region: %s\n",
_gdk_win32_gdkregion_to_string (new_clip_region)));
gdk_window_invalidate_region (window, new_clip_region, FALSE);
}
gdk_region_destroy (new_clip_region);
gdk_region_destroy (old_clip_region);
}
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