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* Headers/win32/WIN32Server.h:

Browse source 
* Source/win32/WIN32Server.m:
* Source/win32/w32_movesize.m:
Fix a rather serious error where the extra window data was allocated
in two places (allocated with objc_malloc in the WM_CREATE handler,
and also allocated by Windows using the cbWndExtra field of the window
class structure). Sometimes the window level was accessed from one
memory area and sometimes from the other.
	
This is a quick fix that leaves the level and ordered properties
in the cbWndExtra area, and the rest is left in the WIN_INTERN
structure. 

This fixes the problem where window ordering was broken when running
apps in gdb.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@31198 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Eric Wasylishen 2010-08-25 04:20:45 +00:00
parent d963ba552d
commit b7ff3b2973
4 changed files with 35 additions and 16 deletions
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18
ChangeLog
View file

@ -1,3 +1,21 @@
2010-08-24 Eric Wasylishen <ewasylishen@gmail.com>
* Headers/win32/WIN32Server.h:
* Source/win32/WIN32Server.m:
* Source/win32/w32_movesize.m:
Fix a rather serious error where the extra window data was allocated
in two places (allocated with objc_malloc in the WM_CREATE handler,
and also allocated by Windows using the cbWndExtra field of the window
class structure). Sometimes the window level was accessed from one
memory area and sometimes from the other.
This is a quick fix that leaves the level and ordered properties
in the cbWndExtra area, and the rest is left in the WIN_INTERN
structure.
This fixes the problem where window ordering was broken when running
apps in gdb.
2010-08-24 Eric Wasylishen <ewasylishen@gmail.com>
* Source/win32/WIN32Server.m (-setmaxsize::):

15
Headers/win32/WIN32Server.h
View file

@ -182,11 +182,18 @@ typedef struct w32serverFlags {
@end
typedef struct _win_intern {
int32_t level;
// FIXME: Keep all of the extra window data in one place
// Extra window data accessed via GetWindowLong
#define OFF_LEVEL 0
int32_t orderedIn;
#define OFF_ORDERED sizeof(int32_t)
#define OFF_ORDERED sizeof(DWORD)
#define WIN_EXTRABYTES (2*sizeof(DWORD))
// Extra window data allocated using objc_malloc in WM_CREATE and accessed via
// the GWL_USERDATA pointer
typedef struct _win_intern {
BOOL useHDC;
BOOL backingStoreEmpty;
HDC hdc;

13
Source/win32/WIN32Server.m
View file

@ -197,8 +197,8 @@ LRESULT CALLBACK MainWndProc(HWND hwnd, UINT uMsg,
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC) MainWndProc;
wc.cbClsExtra = 0;
// Keep extra space for each window, for GS data
wc.cbWndExtra = sizeof(WIN_INTERN);
// Keep extra space for each window, for OFF_LEVEL and OFF_ORDERED
wc.cbWndExtra = WIN_EXTRABYTES;
wc.hInstance = hinstance;
wc.hIcon = NULL;//currentAppIcon;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
@ -1314,13 +1314,11 @@ LRESULT CALLBACK MainWndProc(HWND hwnd, UINT uMsg,
- (void) setwindowlevel: (int) level : (int) winNum
{
WIN_INTERN *win = (WIN_INTERN *)GetWindowLongPtr((HWND)winNum, GWLP_USERDATA);
NSDebugLLog(@"WTrace", @"setwindowlevel: %d : %d", level, winNum);
if (win->level != level)
if (GetWindowLong((HWND)winNum, OFF_LEVEL) != level)
{
SetWindowLong((HWND)winNum, OFF_LEVEL, level);
if (win->orderedIn == YES)
if (GetWindowLong((HWND)winNum, OFF_ORDERED) == YES)
{
[self orderwindow: NSWindowAbove : 0 : winNum];
}
@ -1329,8 +1327,7 @@ LRESULT CALLBACK MainWndProc(HWND hwnd, UINT uMsg,
- (int) windowlevel: (int) winNum
{
WIN_INTERN *win = (WIN_INTERN *)GetWindowLongPtr((HWND)winNum, GWLP_USERDATA);
return win->level;
return GetWindowLong((HWND)winNum, OFF_LEVEL);
}
- (NSArray *) windowlist

5
Source/win32/w32_movesize.m
View file

@ -315,15 +315,12 @@ NSDebugLLog(@"WTrace", @"swap %d (%d) with %d (%d)", hi, hl, lo, ll);
if ((inf->flags & SWP_NOZORDER) == 0)
{
WIN_INTERN *win;
/* desktop level windows should stay at the bottom of the
* window list, so we can simply override any re-ordering
* to ensure that they are at the bottom unless another
* desktop level window is inserted below them.
*/
win = (WIN_INTERN *)GetWindowLong(hwnd, GWL_USERDATA);
if (win->level <= NSDesktopWindowLevel)
if (GetWindowLong(hwnd, OFF_LEVEL) <= NSDesktopWindowLevel)
{
inf->hwndInsertAfter = HWND_BOTTOM;
}