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gtk2/gdk/win32/gdkgeometry-win32.c
Matthias Clasen 5cc215cddf Remove redundant doc comments.
2002-10-23 21:03:35 +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;
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;
};
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);
static GSList *translate_queue = NULL;
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)
{
GdkWindowObject *obj = GDK_WINDOW_OBJECT (window);
GList *tmp_list;
GDK_NOTE (MISC, g_print ("gdk_window_copy_area_scroll: %p %dx%d@+%d+%d %d,%d\n",
GDK_WINDOW_HWND (window),
dest_rect->width, dest_rect->height,
dest_rect->x, dest_rect->y,
dx, dy));
if (dest_rect->width > 0 && dest_rect->height > 0)
{
RECT clipRect;
clipRect.left = dest_rect->x;
clipRect.top = dest_rect->y;
clipRect.right = clipRect.left + dest_rect->width;
clipRect.bottom = clipRect.top + dest_rect->height;
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, /* out: update region */
NULL, /* out: update rect */
SW_INVALIDATE))
WIN32_API_FAILED ("ScrollWindowEx");
}
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;
}
}
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;
}
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;
}
}
void
gdk_window_scroll (GdkWindow *window,
gint dx,
gint dy)
{
gboolean can_guffaw_scroll = FALSE;
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);
/* 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);
}
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));
GDK_NOTE (MISC, g_print ("_gdk_window_move_resize_child: %p %dx%d@+%d+%d\n",
GDK_WINDOW_HWND (window), width, height, x, y));
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
dx = x - obj->x;
dy = y - obj->y;
is_move = dx != 0 || dy != 0;
is_resize = impl->width != width || impl->height != height;
GDK_NOTE (MISC, g_print ("...is_move:%d is_resize:%d\n", is_move, is_resize));
if (!is_move && !is_resize)
return;
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,%dx%d@+%d+%d)\n",
GDK_WINDOW_HWND (window),
new_position.width, new_position.height,
new_position.x, new_position.y));
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_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 - SIZE_LIMIT - parent_pos->win32_x;
else
info->x = -(SIZE_LIMIT/2) - parent_pos->win32_y;
}
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 - SIZE_LIMIT - 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);
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));
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;
}
}
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, GetCurrentTime (), &impl->position_info.clip_rect);
}
translate_queue = g_slist_append (translate_queue, item) ;
}
static void
gdk_window_queue_translation (GdkWindow *window,
gint dx,
gint dy)
{
GdkWindowQueueItem *item = g_new (GdkWindowQueueItem, 1);
item->window = window;
item->serial = GetMessageTime ();
item->type = GDK_WINDOW_QUEUE_TRANSLATE;
item->u.translate.dx = dx;
item->u.translate.dy = dy;
GDK_NOTE (EVENTS, g_print ("gdk_window_queue_translation %p %ld %d,%d\n",
GDK_WINDOW_HWND (window),
item->serial,
dx, dy));
gdk_drawable_ref (window);
gdk_window_queue_append (window, item);
}
gboolean
_gdk_windowing_window_queue_antiexpose (GdkWindow *window,
GdkRegion *area)
{
#if 1
GdkWindowQueueItem *item = g_new (GdkWindowQueueItem, 1);
item->window = window;
item->serial = GetMessageTime ();
item->type = GDK_WINDOW_QUEUE_ANTIEXPOSE;
item->u.antiexpose.area = area;
GDK_NOTE (EVENTS, g_print ("_gdk_windowing_window_queue_antiexpose %p %ld %dx%d@+%d+%d\n",
GDK_WINDOW_HWND (window),
item->serial,
area->extents.x2 - area->extents.x1,
area->extents.y2 - area->extents.y1,
area->extents.x1, area->extents.y1));
gdk_drawable_ref (window);
gdk_window_queue_append (window, item);
return TRUE;
#else
GdkRectangle r;
HRGN hrgn;
gdk_region_get_clipbox (area, &r);
hrgn = CreateRectRgn(r.x, r.y, r.width+1, r.height+1);
g_return_val_if_fail (area != NULL, FALSE);
GDK_NOTE (MISC, g_print ("_gdk_windowing_window_queue_antiexpose %p\n",
GDK_WINDOW_HWND (window)));
/* HB: not quite sure if this is the right thing to do.
* (Region not to be proceesed by next WM_PAINT)
*/
ValidateRgn(GDK_WINDOW_HWND (window), hrgn);
DeleteObject(hrgn);
return TRUE;
#endif
}
void
_gdk_window_process_expose (GdkWindow *window,
gulong serial,
GdkRectangle *area)
{
GdkWindowImplWin32 *impl;
GdkRegion *invalidate_region = gdk_region_rectangle (area);
GdkRegion *clip_region;
GSList *tmp_list = translate_queue;
impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);
GDK_NOTE (EVENTS, g_print ("_gdk_window_process_expose %p %ld %dx%d@+%d+%d\n",
GDK_WINDOW_HWND (window), serial,
area->width, area->height, area->x, area->y));
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_region_offset (invalidate_region, - item->u.translate.dx, - item->u.translate.dy);
else /* anti-expose */
gdk_region_subtract (invalidate_region, item->u.antiexpose.area);
}
}
else
{
GSList *tmp_link = translate_queue;
translate_queue = g_slist_remove_link (translate_queue, translate_queue);
gdk_drawable_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);
}
}
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 (invalidate_region);
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_window_invalidate_region (window, new_clip_region, FALSE);
}
gdk_region_destroy (new_clip_region);
gdk_region_destroy (old_clip_region);
}
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