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gdi32: Move the whole DC restoring functionality into set_dc_state, and rename it to restore_dc_state.

This commit is contained in:
Alexandre Julliard 2009-04-07 20:28:08 +02:00
parent a23725785e
commit d4c54be272
2 changed files with 48 additions and 36 deletions
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82
dlls/gdi32/dc.c
View File

@ -443,27 +443,45 @@ INT save_dc_state( HDC hdc )
/***********************************************************************
* set_dc_state (Not a Windows API)
* restore_dc_state
*/
void set_dc_state( HDC hdc, HDC hdcs )
BOOL restore_dc_state( HDC hdc, INT level )
{
HDC hdcs, first_dcs;
DC *dc, *dcs;
INT save_level;
if (!(dc = get_dc_ptr( hdc ))) return;
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
/* find the state level to restore */
if (level < 0) level = dc->saveLevel + level + 1;
first_dcs = dc->saved_dc;
for (hdcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
{
if (!(dcs = get_dc_ptr( hdcs )))
{
release_dc_ptr( dc );
return;
return FALSE;
}
if (!(dcs->flags & DC_SAVED))
hdcs = dcs->saved_dc;
release_dc_ptr( dcs );
}
/* restore the state */
if (!(dcs = get_dc_ptr( hdcs )))
{
release_dc_ptr( dc );
release_dc_ptr( dcs );
return;
return FALSE;
}
if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
{
release_dc_ptr( dcs );
release_dc_ptr( dc );
return FALSE;
}
TRACE("%p %p\n", hdc, hdcs );
update_dc( dc );
dc->flags = dcs->flags & ~DC_SAVED;
dc->layout = dcs->layout;
dc->hDevice = dcs->hDevice;
@ -531,8 +549,24 @@ void set_dc_state( HDC hdc, HDC hdcs )
SetBkColor( hdc, dcs->backgroundColor);
SetTextColor( hdc, dcs->textColor);
GDISelectPalette( hdc, dcs->hPalette, FALSE );
release_dc_ptr( dc );
dc->saved_dc = dcs->saved_dc;
dcs->saved_dc = 0;
dc->saveLevel = save_level - 1;
release_dc_ptr( dcs );
/* now destroy all the saved DCs */
while (first_dcs)
{
if (!(dcs = get_dc_ptr( first_dcs ))) break;
hdcs = dcs->saved_dc;
free_dc_ptr( dcs );
first_dcs = hdcs;
}
release_dc_ptr( dc );
return TRUE;
}
@ -567,11 +601,12 @@ INT WINAPI SaveDC( HDC hdc )
*/
BOOL WINAPI RestoreDC( HDC hdc, INT level )
{
DC * dc, * dcs;
DC *dc;
BOOL success;
TRACE("%p %d\n", hdc, level );
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
update_dc( dc );
if(abs(level) > dc->saveLevel || level == 0)
{
@ -579,8 +614,6 @@ BOOL WINAPI RestoreDC( HDC hdc, INT level )
return FALSE;
}
update_dc( dc );
if(dc->funcs->pRestoreDC)
{
success = dc->funcs->pRestoreDC( dc->physDev, level );
@ -591,28 +624,7 @@ BOOL WINAPI RestoreDC( HDC hdc, INT level )
return success;
}
if (level < 0) level = dc->saveLevel + level + 1;
success=TRUE;
while (dc->saveLevel >= level)
{
HDC hdcs = dc->saved_dc;
if (!(dcs = get_dc_ptr( hdcs )))
{
success = FALSE;
break;
}
dc->saved_dc = dcs->saved_dc;
dcs->saved_dc = 0;
if (--dc->saveLevel < level)
{
set_dc_state( hdc, hdcs );
if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
/* FIXME: This might not be quite right, since we're
* returning FALSE but still destroying the saved DC state */
success=FALSE;
}
free_dc_ptr( dcs );
}
success = restore_dc_state( hdc, level );
release_dc_ptr( dc );
return success;
}

2
dlls/gdi32/gdi_private.h
View File

@ -384,7 +384,7 @@ extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
extern INT save_dc_state( HDC hdc ) DECLSPEC_HIDDEN;
extern void set_dc_state( HDC hdc, HDC hdcs ) DECLSPEC_HIDDEN;
extern BOOL restore_dc_state( HDC hdc, INT level ) DECLSPEC_HIDDEN;
/* dib.c */
extern int DIB_GetDIBWidthBytes( int width, int depth ) DECLSPEC_HIDDEN;