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Started rewrite of painting functions for multiple processes. Moved 

BeginPaint to dlls/user. Fixed bug in paint count handling.
This commit is contained in:
Alexandre Julliard 2001-12-13 01:03:30 +00:00
parent 9c6af0a490
commit 4964c0f185
4 changed files with 270 additions and 153 deletions
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1
dlls/user/Makefile.in
View File

@ -23,6 +23,7 @@ C_SRCS = \
mouse.c \
msg16.c \
network.c \
painting.c \
property.c \
resource.c \
text.c \

231
dlls/user/painting.c Normal file
View File

@ -0,0 +1,231 @@
/*
* Window painting functions
*
* Copyright 1993, 1994, 1995, 2001 Alexandre Julliard
* Copyright 1999 Alex Korobka
*/
#include <string.h>
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "wine/server.h"
#include "win.h"
#include "dce.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(win);
/***********************************************************************
* add_paint_count
*
* Add an increment (normally 1 or -1) to the current paint count of a window.
*/
static void add_paint_count( HWND hwnd, int incr )
{
SERVER_START_REQ( inc_window_paint_count )
{
req->handle = hwnd;
req->incr = incr;
wine_server_call( req );
}
SERVER_END_REQ;
}
/***********************************************************************
* copy_rgn
*
* copy a region, doing the right thing if the source region is 0 or 1
*/
static HRGN copy_rgn( HRGN hSrc )
{
if (hSrc > 1)
{
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( hrgn, hSrc, 0, RGN_COPY );
return hrgn;
}
return hSrc;
}
/***********************************************************************
* get_update_regions
*
* Return update regions for the whole window and for the client area.
*/
static void get_update_regions( WND *win, HRGN *whole_rgn, HRGN *client_rgn )
{
if (win->hrgnUpdate > 1)
{
RECT client, update;
/* check if update rgn overlaps with nonclient area */
GetRgnBox( win->hrgnUpdate, &update );
client = win->rectClient;
OffsetRect( &client, -win->rectWindow.left, -win->rectWindow.top );
if (update.left < client.left || update.top < client.top ||
update.right > client.right || update.bottom > client.bottom)
{
*whole_rgn = copy_rgn( win->hrgnUpdate );
*client_rgn = CreateRectRgnIndirect( &client );
if (CombineRgn( *client_rgn, *client_rgn, win->hrgnUpdate, RGN_AND ) == NULLREGION)
{
DeleteObject( *client_rgn );
*client_rgn = 0;
}
}
else
{
*whole_rgn = 0;
*client_rgn = copy_rgn( win->hrgnUpdate );
}
}
else
{
*client_rgn = *whole_rgn = win->hrgnUpdate; /* 0 or 1 */
}
}
/***********************************************************************
* begin_ncpaint
*
* Send a WM_NCPAINT message from inside BeginPaint().
* Returns update region cropped to client rectangle (and in client coords),
* and clears window update region and internal paint flag.
*/
static HRGN begin_ncpaint( HWND hwnd )
{
HRGN whole_rgn, client_rgn;
WND *wnd = WIN_GetPtr( hwnd );
if (!wnd || wnd == WND_OTHER_PROCESS) return 0;
TRACE("hwnd %04x [%04x] ncf %i\n",
hwnd, wnd->hrgnUpdate, wnd->flags & WIN_NEEDS_NCPAINT);
get_update_regions( wnd, &whole_rgn, &client_rgn );
if (whole_rgn) /* NOTE: WM_NCPAINT allows wParam to be 1 */
{
WIN_ReleasePtr( wnd );
SendMessageA( hwnd, WM_NCPAINT, whole_rgn, 0 );
if (whole_rgn > 1) DeleteObject( whole_rgn );
/* make sure the window still exists before continuing */
if (!(wnd = WIN_GetPtr( hwnd )) || wnd == WND_OTHER_PROCESS)
{
if (client_rgn > 1) DeleteObject( client_rgn );
return 0;
}
}
if (wnd->hrgnUpdate || (wnd->flags & WIN_INTERNAL_PAINT)) add_paint_count( hwnd, -1 );
if (wnd->hrgnUpdate > 1) DeleteObject( wnd->hrgnUpdate );
wnd->hrgnUpdate = 0;
wnd->flags &= ~(WIN_INTERNAL_PAINT | WIN_NEEDS_NCPAINT | WIN_NEEDS_BEGINPAINT);
if (client_rgn > 1) OffsetRgn( client_rgn, wnd->rectWindow.left - wnd->rectClient.left,
wnd->rectWindow.top - wnd->rectClient.top );
WIN_ReleasePtr( wnd );
return client_rgn;
}
/***********************************************************************
* BeginPaint (USER32.@)
*/
HDC WINAPI BeginPaint( HWND hwnd, PAINTSTRUCT *lps )
{
INT dcx_flags;
BOOL bIcon;
HRGN hrgnUpdate;
RECT clipRect, clientRect;
HWND full_handle;
WND *wndPtr;
if (!(full_handle = WIN_IsCurrentThread( hwnd )))
{
if (IsWindow(hwnd))
FIXME( "window %x belongs to other thread\n", hwnd );
return 0;
}
hwnd = full_handle;
/* send WM_NCPAINT and retrieve update region */
hrgnUpdate = begin_ncpaint( hwnd );
if (!hrgnUpdate && !IsWindow( hwnd )) return 0;
HideCaret( hwnd );
bIcon = (IsIconic(hwnd) && GetClassLongA(hwnd, GCL_HICON));
dcx_flags = DCX_INTERSECTRGN | DCX_WINDOWPAINT | DCX_USESTYLE;
if (bIcon) dcx_flags |= DCX_WINDOW;
if (GetClassLongA( hwnd, GCL_STYLE ) & CS_PARENTDC)
{
/* Don't clip the output to the update region for CS_PARENTDC window */
if (hrgnUpdate > 1) DeleteObject( hrgnUpdate );
hrgnUpdate = 0;
dcx_flags &= ~DCX_INTERSECTRGN;
}
else
{
if (!hrgnUpdate) /* empty region, clip everything */
{
hrgnUpdate = CreateRectRgn( 0, 0, 0, 0 );
}
else if (hrgnUpdate == 1) /* whole client area, don't clip */
{
hrgnUpdate = 0;
dcx_flags &= ~DCX_INTERSECTRGN;
}
}
lps->hdc = GetDCEx( hwnd, hrgnUpdate, dcx_flags );
/* ReleaseDC() in EndPaint() will delete the region */
if (!lps->hdc)
{
WARN("GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
DeleteObject( hrgnUpdate );
return 0;
}
/* It is possible that the clip box is bigger than the window itself,
if CS_PARENTDC flag is set. Windows never return a paint rect bigger
than the window itself, so we need to intersect the cliprect with
the window */
GetClientRect( hwnd, &clientRect );
GetClipBox( lps->hdc, &clipRect );
LPtoDP(lps->hdc, (LPPOINT)&clipRect, 2); /* GetClipBox returns LP */
IntersectRect(&lps->rcPaint, &clientRect, &clipRect);
DPtoLP(lps->hdc, (LPPOINT)&lps->rcPaint, 2); /* we must return LP */
TRACE("hdc = %x box = (%i,%i - %i,%i)\n",
lps->hdc, lps->rcPaint.left, lps->rcPaint.top, lps->rcPaint.right, lps->rcPaint.bottom );
if (!(wndPtr = WIN_GetPtr( hwnd )) || wndPtr == WND_OTHER_PROCESS) return 0;
lps->fErase = !(wndPtr->flags & WIN_NEEDS_ERASEBKGND);
wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
WIN_ReleasePtr( wndPtr );
if (!lps->fErase)
lps->fErase = !SendMessageA( hwnd, bIcon ? WM_ICONERASEBKGND : WM_ERASEBKGND,
(WPARAM)lps->hdc, 0 );
return lps->hdc;
}
/***********************************************************************
* EndPaint (USER32.@)
*/
BOOL WINAPI EndPaint( HWND hwnd, const PAINTSTRUCT *lps )
{
ReleaseDC( hwnd, lps->hdc );
ShowCaret( hwnd );
return TRUE;
}

32
dlls/user/wnd16.c
View File

@ -214,6 +214,38 @@ INT16 WINAPI GetWindowTextLength16( HWND16 hwnd )
}
/***********************************************************************
* BeginPaint (USER.39)
*/
HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
{
PAINTSTRUCT ps;
BeginPaint( WIN_Handle32(hwnd), &ps );
lps->hdc = ps.hdc;
lps->fErase = ps.fErase;
lps->rcPaint.top = ps.rcPaint.top;
lps->rcPaint.left = ps.rcPaint.left;
lps->rcPaint.right = ps.rcPaint.right;
lps->rcPaint.bottom = ps.rcPaint.bottom;
lps->fRestore = ps.fRestore;
lps->fIncUpdate = ps.fIncUpdate;
return lps->hdc;
}
/***********************************************************************
* EndPaint (USER.40)
*/
BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
{
PAINTSTRUCT ps;
ps.hdc = lps->hdc;
return EndPaint( WIN_Handle32(hwnd), &ps );
}
/**************************************************************************
* ShowWindow (USER.42)
*/

159
windows/painting.c
View File

@ -278,153 +278,6 @@ copyrgn:
}
/***********************************************************************
* BeginPaint (USER.39)
*/
HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
{
PAINTSTRUCT ps;
BeginPaint( WIN_Handle32(hwnd), &ps );
lps->hdc = ps.hdc;
lps->fErase = ps.fErase;
lps->rcPaint.top = ps.rcPaint.top;
lps->rcPaint.left = ps.rcPaint.left;
lps->rcPaint.right = ps.rcPaint.right;
lps->rcPaint.bottom = ps.rcPaint.bottom;
lps->fRestore = ps.fRestore;
lps->fIncUpdate = ps.fIncUpdate;
return lps->hdc;
}
/***********************************************************************
* BeginPaint (USER32.@)
*/
HDC WINAPI BeginPaint( HWND hwnd, PAINTSTRUCT *lps )
{
BOOL bIcon;
HRGN hrgnUpdate;
RECT clipRect, clientRect;
HWND full_handle;
WND *wndPtr;
if (!(full_handle = WIN_IsCurrentThread( hwnd )))
{
if (IsWindow(hwnd))
FIXME( "window %x belongs to other thread\n", hwnd );
return 0;
}
hwnd = full_handle;
bIcon = (IsIconic(hwnd) && GetClassLongA(hwnd, GCL_HICON));
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
/* send WM_NCPAINT and make sure hrgnUpdate is a valid rgn handle */
WIN_UpdateNCRgn( wndPtr, 0, UNC_UPDATE | UNC_IN_BEGINPAINT);
/*
* Make sure the window is still a window. All window locks are suspended
* when the WM_NCPAINT is sent.
*/
if (!IsWindow( hwnd ))
{
WIN_ReleaseWndPtr(wndPtr);
return 0;
}
if( ((hrgnUpdate = wndPtr->hrgnUpdate) != 0) || (wndPtr->flags & WIN_INTERNAL_PAINT))
add_paint_count( hwnd, -1 );
wndPtr->hrgnUpdate = 0;
wndPtr->flags &= ~WIN_INTERNAL_PAINT;
WIN_ReleaseWndPtr(wndPtr);
HideCaret( hwnd );
TRACE("hrgnUpdate = %04x, \n", hrgnUpdate);
if (GetClassLongA( hwnd, GCL_STYLE ) & CS_PARENTDC)
{
/* Don't clip the output to the update region for CS_PARENTDC window */
if( hrgnUpdate )
DeleteObject(hrgnUpdate);
lps->hdc = GetDCEx( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
(bIcon ? DCX_WINDOW : 0) );
}
else
{
if( hrgnUpdate ) /* convert to client coordinates */
OffsetRgn( hrgnUpdate, wndPtr->rectWindow.left - wndPtr->rectClient.left,
wndPtr->rectWindow.top - wndPtr->rectClient.top );
lps->hdc = GetDCEx(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
DCX_WINDOWPAINT | DCX_USESTYLE | (bIcon ? DCX_WINDOW : 0) );
/* ReleaseDC() in EndPaint() will delete the region */
}
TRACE("hdc = %04x\n", lps->hdc);
if (!lps->hdc)
{
WARN("GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
return 0;
}
/* It is possible that the clip box is bigger than the window itself,
if CS_PARENTDC flag is set. Windows never return a paint rect bigger
than the window itself, so we need to intersect the cliprect with
the window */
GetClientRect( hwnd, &clientRect );
GetClipBox( lps->hdc, &clipRect );
LPtoDP(lps->hdc, (LPPOINT)&clipRect, 2); /* GetClipBox returns LP */
IntersectRect(&lps->rcPaint, &clientRect, &clipRect);
DPtoLP(lps->hdc, (LPPOINT)&lps->rcPaint, 2); /* we must return LP */
TRACE("box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
lps->rcPaint.right, lps->rcPaint.bottom );
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
{
wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
lps->fErase = !SendMessageA(hwnd, (bIcon) ? WM_ICONERASEBKGND : WM_ERASEBKGND,
(WPARAM16)lps->hdc, 0 );
}
else lps->fErase = TRUE;
WIN_ReleaseWndPtr(wndPtr);
return lps->hdc;
}
/***********************************************************************
* EndPaint (USER.40)
*/
BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
{
ReleaseDC16( hwnd, lps->hdc );
ShowCaret16( hwnd );
return TRUE;
}
/***********************************************************************
* EndPaint (USER32.@)
*/
BOOL WINAPI EndPaint( HWND hwnd, const PAINTSTRUCT *lps )
{
ReleaseDC( hwnd, lps->hdc );
ShowCaret( hwnd );
return TRUE;
}
/***********************************************************************
* RDW_ValidateParent [RDW_UpdateRgns() helper]
*
@ -858,8 +711,6 @@ BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rectUpdate,
{
if( !IntersectRect( &r2, &r, rectUpdate ) ) goto END;
OffsetRect( &r2, pt.x, pt.y );
rect2i:
if( wndPtr->hrgnUpdate == 0 )
wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 );
else
@ -869,14 +720,16 @@ rect2i:
{
if( flags & RDW_FRAME )
{
if( wndPtr->hrgnUpdate )
DeleteObject( wndPtr->hrgnUpdate );
wndPtr->hrgnUpdate = 1;
if (wndPtr->hrgnUpdate) hRgn = 1;
else wndPtr->hrgnUpdate = 1;
}
else
{
GETCLIENTRECTW( wndPtr, r2 );
goto rect2i;
if( wndPtr->hrgnUpdate == 0 )
wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 );
else
hRgn = CreateRectRgnIndirect( &r2 );
}
}
}