/* * Window painting functions * * Copyright 1993, 1994, 1995 Alexandre Julliard * 1999 Alex Korobka */ #include "region.h" #include "win.h" #include "queue.h" #include "dce.h" #include "heap.h" #include "debugtools.h" #include "wine/winuser16.h" #include "cache.h" DEFAULT_DEBUG_CHANNEL(win) DECLARE_DEBUG_CHANNEL(nonclient) /* client rect in window coordinates */ #define GETCLIENTRECTW( wnd, r ) (r).left = (wnd)->rectClient.left - (wnd)->rectWindow.left; \ (r).top = (wnd)->rectClient.top - (wnd)->rectWindow.top; \ (r).right = (wnd)->rectClient.right - (wnd)->rectWindow.left; \ (r).bottom = (wnd)->rectClient.bottom - (wnd)->rectWindow.top /* Last CTLCOLOR id */ #define CTLCOLOR_MAX CTLCOLOR_STATIC /*********************************************************************** * WIN_HaveToDelayNCPAINT * * Currently, in the Wine painting mechanism, the WM_NCPAINT message * is generated as soon as a region intersecting the non-client area * of a window is invalidated. * * This technique will work fine for all windows whose parents * have the WS_CLIPCHILDREN style. When the parents have that style, * they are not going to override the contents of their children. * However, when the parent doesn't have that style, Windows relies * on a "painter's algorithm" to display the contents of the windows. * That is, windows are painted from back to front. This includes the * non-client area. * * This method looks at the current state of a window to determine * if the sending of the WM_NCPAINT message should be delayed until * the BeginPaint call. * * PARAMS: * wndPtr - A Locked window pointer to the window we're * examining. * uncFlags - This is the flag passed to the WIN_UpdateNCRgn * function. This is a shortcut for the cases when * we already know when to avoid scanning all the * parents of a window. If you already know that this * window's NCPAINT should be delayed, set the * UNC_DELAY_NCPAINT flag for this parameter. * * This shortcut behavior is implemented in the * RDW_Paint() method. * */ static BOOL WIN_HaveToDelayNCPAINT( WND* wndPtr, UINT uncFlags) { WND* parentWnd = NULL; /* * Test the shortcut first. (duh) */ if (uncFlags & UNC_DELAY_NCPAINT) return TRUE; /* * The UNC_IN_BEGINPAINT flag is set in the BeginPaint * method only. This is another shortcut to avoid going * up the parent's chain of the window to finally * figure-out that none of them has an invalid region. */ if (uncFlags & UNC_IN_BEGINPAINT) return FALSE; /* * Scan all the parents of this window to find a window * that doesn't have the WS_CLIPCHILDREN style and that * has an invalid region. */ parentWnd = WIN_LockWndPtr(wndPtr->parent); while (parentWnd!=NULL) { if ( ((parentWnd->dwStyle & WS_CLIPCHILDREN) == 0) && (parentWnd->hrgnUpdate != 0) ) { WIN_ReleaseWndPtr(parentWnd); return TRUE; } WIN_UpdateWndPtr(&parentWnd, parentWnd->parent); } WIN_ReleaseWndPtr(parentWnd); return FALSE; } /*********************************************************************** * WIN_UpdateNCRgn * * Things to do: * Send WM_NCPAINT if required (when nonclient is invalid or UNC_ENTIRE flag is set) * Crop hrgnUpdate to a client rect, especially if it 1. * If UNC_REGION is set return update region for the client rect. * * NOTE: UNC_REGION is mainly for the RDW_Paint() chunk that sends WM_ERASEBKGND message. * The trick is that when the returned region handle may be different from hRgn. * In this case the old hRgn must be considered gone. BUT, if the returned value * is 1 then the hRgn is preserved and RDW_Paint() will have to get * a DC without extra clipping region. */ HRGN WIN_UpdateNCRgn(WND* wnd, HRGN hRgn, UINT uncFlags ) { RECT r; HRGN hClip = 0; HRGN hrgnRet = 0; TRACE_(nonclient)("hwnd %04x [%04x] hrgn %04x, unc %04x, ncf %i\n", wnd->hwndSelf, wnd->hrgnUpdate, hRgn, uncFlags, wnd->flags & WIN_NEEDS_NCPAINT); /* desktop window doesn't have a nonclient area */ if(wnd == WIN_GetDesktop()) { wnd->flags &= ~WIN_NEEDS_NCPAINT; if( wnd->hrgnUpdate > 1 ) hrgnRet = REGION_CropRgn( hRgn, wnd->hrgnUpdate, NULL, NULL ); else { hrgnRet = wnd->hrgnUpdate; } WIN_ReleaseDesktop(); return hrgnRet; } WIN_ReleaseDesktop(); if ((wnd->hwndSelf == GetForegroundWindow()) && !(wnd->flags & WIN_NCACTIVATED) ) { wnd->flags |= WIN_NCACTIVATED; uncFlags |= UNC_ENTIRE; } /* * If the window's non-client area needs to be painted, */ if ( ( wnd->flags & WIN_NEEDS_NCPAINT ) && !WIN_HaveToDelayNCPAINT(wnd, uncFlags) ) { RECT r2, r3; wnd->flags &= ~WIN_NEEDS_NCPAINT; GETCLIENTRECTW( wnd, r ); TRACE_(nonclient)( "\tclient box (%i,%i-%i,%i), hrgnUpdate %04x\n", r.left, r.top, r.right, r.bottom, wnd->hrgnUpdate ); if( wnd->hrgnUpdate > 1 ) { /* Check if update rgn overlaps with nonclient area */ GetRgnBox( wnd->hrgnUpdate, &r2 ); UnionRect( &r3, &r2, &r ); if( r3.left != r.left || r3.top != r.top || r3.right != r.right || r3.bottom != r.bottom ) /* it does */ { /* crop hrgnUpdate, save old one in hClip - the only * case that places a valid region handle in hClip */ hClip = wnd->hrgnUpdate; wnd->hrgnUpdate = REGION_CropRgn( hRgn, hClip, &r, NULL ); if( uncFlags & UNC_REGION ) hrgnRet = hClip; } if( uncFlags & UNC_CHECK ) { GetRgnBox( wnd->hrgnUpdate, &r3 ); if( IsRectEmpty( &r3 ) ) { /* delete the update region since all invalid * parts were in the nonclient area */ DeleteObject( wnd->hrgnUpdate ); wnd->hrgnUpdate = 0; if(!(wnd->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wnd->hmemTaskQ ); wnd->flags &= ~WIN_NEEDS_ERASEBKGND; } } if(!hClip && wnd->hrgnUpdate ) goto copyrgn; } else if( wnd->hrgnUpdate == 1 )/* entire window */ { if( uncFlags & UNC_UPDATE ) wnd->hrgnUpdate = CreateRectRgnIndirect( &r ); if( uncFlags & UNC_REGION ) hrgnRet = 1; uncFlags |= UNC_ENTIRE; } } else /* no WM_NCPAINT unless forced */ { if( wnd->hrgnUpdate > 1 ) { copyrgn: if( uncFlags & UNC_REGION ) hrgnRet = REGION_CropRgn( hRgn, wnd->hrgnUpdate, NULL, NULL ); } else if( wnd->hrgnUpdate == 1 && (uncFlags & UNC_UPDATE) ) { GETCLIENTRECTW( wnd, r ); wnd->hrgnUpdate = CreateRectRgnIndirect( &r ); if( uncFlags & UNC_REGION ) hrgnRet = 1; } } if(!hClip && (uncFlags & UNC_ENTIRE) ) { /* still don't do anything if there is no nonclient area */ hClip = (memcmp( &wnd->rectWindow, &wnd->rectClient, sizeof(RECT) ) != 0); } if( hClip ) /* NOTE: WM_NCPAINT allows wParam to be 1 */ { if ( hClip == hrgnRet && hrgnRet > 1 ) { hClip = CreateRectRgn( 0, 0, 0, 0 ); CombineRgn( hClip, hrgnRet, 0, RGN_COPY ); } SendMessageA( wnd->hwndSelf, WM_NCPAINT, hClip, 0L ); if( (hClip > 1) && (hClip != hRgn) && (hClip != hrgnRet) ) DeleteObject( hClip ); /* * Since all Window locks are suspended while processing the WM_NCPAINT * we want to make sure the window still exists before continuing. */ if (!IsWindow(wnd->hwndSelf)) { DeleteObject(hrgnRet); hrgnRet=0; } } TRACE_(nonclient)("returning %04x (hClip = %04x, hrgnUpdate = %04x)\n", hrgnRet, hClip, wnd->hrgnUpdate ); return hrgnRet; } /*********************************************************************** * BeginPaint16 (USER.39) */ HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps ) { BOOL bIcon; HRGN hrgnUpdate; RECT16 clipRect, clientRect; WND *wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; bIcon = (wndPtr->dwStyle & WS_MINIMIZE && GetClassWord(wndPtr->hwndSelf, GCW_HICON)); 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(wndPtr->hwndSelf)) { WIN_ReleaseWndPtr(wndPtr); return 0; } if( ((hrgnUpdate = wndPtr->hrgnUpdate) != 0) || (wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); wndPtr->hrgnUpdate = 0; wndPtr->flags &= ~WIN_INTERNAL_PAINT; HideCaret( hwnd ); TRACE("hrgnUpdate = %04x, \n", hrgnUpdate); if (GetClassWord16(wndPtr->hwndSelf, GCW_STYLE) & CS_PARENTDC) { /* Don't clip the output to the update region for CS_PARENTDC window */ if( hrgnUpdate ) DeleteObject(hrgnUpdate); lps->hdc = GetDCEx16( 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 = GetDCEx16(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); WIN_ReleaseWndPtr(wndPtr); 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 */ GetClipBox16( lps->hdc, &clipRect ); GetClientRect16( hwnd, &clientRect ); /* The rect obtained by GetClipBox is in logical, so make the client in logical to*/ DPtoLP16(lps->hdc, (LPPOINT16) &clientRect, 2); IntersectRect16(&lps->rcPaint, &clientRect, &clipRect); TRACE("box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top, lps->rcPaint.right, lps->rcPaint.bottom ); if (wndPtr->flags & WIN_NEEDS_ERASEBKGND) { wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND : WM_ERASEBKGND, (WPARAM16)lps->hdc, 0 ); } else lps->fErase = TRUE; WIN_ReleaseWndPtr(wndPtr); return lps->hdc; } /*********************************************************************** * BeginPaint32 (USER32.10) */ HDC WINAPI BeginPaint( HWND hwnd, PAINTSTRUCT *lps ) { PAINTSTRUCT16 ps; BeginPaint16( hwnd, &ps ); lps->hdc = (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; } /*********************************************************************** * EndPaint16 (USER.40) */ BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps ) { ReleaseDC16( hwnd, lps->hdc ); ShowCaret( hwnd ); return TRUE; } /*********************************************************************** * EndPaint32 (USER32.176) */ BOOL WINAPI EndPaint( HWND hwnd, const PAINTSTRUCT *lps ) { ReleaseDC( hwnd, lps->hdc ); ShowCaret( hwnd ); return TRUE; } /*********************************************************************** * FillWindow (USER.324) */ void WINAPI FillWindow16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush ) { RECT16 rect; GetClientRect16( hwnd, &rect ); DPtoLP16( hdc, (LPPOINT16)&rect, 2 ); PaintRect16( hwndParent, hwnd, hdc, hbrush, &rect ); } /*********************************************************************** * PAINT_GetControlBrush */ static HBRUSH16 PAINT_GetControlBrush( HWND hParent, HWND hWnd, HDC16 hDC, UINT16 ctlType ) { HBRUSH16 bkgBrush = (HBRUSH16)SendMessageA( hParent, WM_CTLCOLORMSGBOX + ctlType, (WPARAM)hDC, (LPARAM)hWnd ); if( !IsGDIObject16(bkgBrush) ) bkgBrush = DEFWND_ControlColor( hDC, ctlType ); return bkgBrush; } /*********************************************************************** * PaintRect (USER.325) */ void WINAPI PaintRect16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush, const RECT16 *rect) { if( hbrush <= CTLCOLOR_MAX ) { if( hwndParent ) hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush ); else return; } if( hbrush ) FillRect16( hdc, rect, hbrush ); } /*********************************************************************** * GetControlBrush (USER.326) */ HBRUSH16 WINAPI GetControlBrush16( HWND16 hwnd, HDC16 hdc, UINT16 ctlType ) { WND* wndPtr = WIN_FindWndPtr( hwnd ); HBRUSH16 retvalue; if((ctlType <= CTLCOLOR_MAX) && wndPtr ) { WND* parent; if( wndPtr->dwStyle & WS_POPUP ) parent = WIN_LockWndPtr(wndPtr->owner); else parent = WIN_LockWndPtr(wndPtr->parent); if( !parent ) parent = wndPtr; retvalue = (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType ); WIN_ReleaseWndPtr(parent); goto END; } retvalue = (HBRUSH16)0; END: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * RDW_ValidateParent [RDW_UpdateRgns() helper] * * Validate the portions of parent that are covered by a validated child * wndPtr = child */ void RDW_ValidateParent(WND *wndChild) { WND *wndParent = WIN_LockWndPtr(wndChild->parent); WND *wndDesktop = WIN_GetDesktop(); if ((wndParent) && (wndParent != wndDesktop) && !(wndParent->dwStyle & WS_CLIPCHILDREN)) { HRGN hrg; if (wndChild->hrgnUpdate == 1 ) { RECT r; r.left = 0; r.top = 0; r.right = wndChild->rectWindow.right - wndChild->rectWindow.left; r.bottom = wndChild->rectWindow.bottom - wndChild->rectWindow.top; hrg = CreateRectRgnIndirect( &r ); } else hrg = wndChild->hrgnUpdate; if (wndParent->hrgnUpdate != 0) { POINT ptOffset; RECT rect, rectParent; if( wndParent->hrgnUpdate == 1 ) { RECT r; r.left = 0; r.top = 0; r.right = wndParent->rectWindow.right - wndParent->rectWindow.left; r.bottom = wndParent->rectWindow.bottom - wndParent->rectWindow.top; wndParent->hrgnUpdate = CreateRectRgnIndirect( &r ); } /* we must offset the child region by the offset of the child rect in the parent */ GetWindowRect(wndParent->hwndSelf, &rectParent); GetWindowRect(wndChild->hwndSelf, &rect); ptOffset.x = rect.left - rectParent.left; ptOffset.y = rect.top - rectParent.top; OffsetRgn( hrg, ptOffset.x, ptOffset.y ); CombineRgn( wndParent->hrgnUpdate, wndParent->hrgnUpdate, hrg, RGN_DIFF ); OffsetRgn( hrg, -ptOffset.x, -ptOffset.y ); } if (hrg != wndChild->hrgnUpdate) DeleteObject( hrg ); } WIN_ReleaseWndPtr(wndParent); WIN_ReleaseDesktop(); } /*********************************************************************** * RDW_UpdateRgns [RedrawWindow() helper] * * Walks the window tree and adds/removes parts of the hRgn to/from update * regions of windows that overlap it. Also, manages internal paint flags. * * NOTE: Walks the window tree so the caller must lock it. * MUST preserve hRgn (can modify but then has to restore). */ static void RDW_UpdateRgns( WND* wndPtr, HRGN hRgn, UINT flags, BOOL firstRecursLevel ) { /* * Called only when one of the following is set: * (RDW_INVALIDATE | RDW_VALIDATE | RDW_INTERNALPAINT | RDW_NOINTERNALPAINT) */ BOOL bHadOne = wndPtr->hrgnUpdate && hRgn; BOOL bChildren = ( wndPtr->child && !(flags & RDW_NOCHILDREN) && !(wndPtr->dwStyle & WS_MINIMIZE) && ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) ); RECT r; r.left = 0; r.top = 0; r.right = wndPtr->rectWindow.right - wndPtr->rectWindow.left; r.bottom = wndPtr->rectWindow.bottom - wndPtr->rectWindow.top; TRACE("\thwnd %04x [%04x] -> hrgn [%04x], flags [%04x]\n", wndPtr->hwndSelf, wndPtr->hrgnUpdate, hRgn, flags ); if( flags & RDW_INVALIDATE ) { if( hRgn > 1 ) { switch( wndPtr->hrgnUpdate ) { default: CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hRgn, RGN_OR ); /* fall through */ case 0: wndPtr->hrgnUpdate = REGION_CropRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate ? wndPtr->hrgnUpdate : hRgn, &r, NULL ); if( !bHadOne ) { GetRgnBox( wndPtr->hrgnUpdate, &r ); if( IsRectEmpty( &r ) ) { DeleteObject( wndPtr->hrgnUpdate ); wndPtr->hrgnUpdate = 0; goto OUT; } } break; case 1: /* already an entire window */ break; } } else if( hRgn == 1 ) { if( wndPtr->hrgnUpdate > 1 ) DeleteObject( wndPtr->hrgnUpdate ); wndPtr->hrgnUpdate = 1; } else hRgn = wndPtr->hrgnUpdate; /* this is a trick that depends on code in PAINT_RedrawWindow() */ if( !bHadOne && !(wndPtr->flags & WIN_INTERNAL_PAINT) ) QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT; if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND; flags |= RDW_FRAME; } else if( flags & RDW_VALIDATE ) { if( wndPtr->hrgnUpdate ) { if( hRgn > 1 ) { if( wndPtr->hrgnUpdate == 1 ) wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r ); if( CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hRgn, RGN_DIFF ) == NULLREGION ) goto EMPTY; } else /* validate everything */ { if( wndPtr->hrgnUpdate > 1 ) { EMPTY: DeleteObject( wndPtr->hrgnUpdate ); } wndPtr->hrgnUpdate = 0; } if( !wndPtr->hrgnUpdate ) { wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; if( !(wndPtr->flags & WIN_INTERNAL_PAINT) ) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); } } if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT; if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; } if ((firstRecursLevel) && (wndPtr->hrgnUpdate != 0) && (flags & RDW_UPDATENOW)) RDW_ValidateParent(wndPtr); /* validate parent covered by region */ /* in/validate child windows that intersect with the region if it * is a valid handle. */ if( flags & (RDW_INVALIDATE | RDW_VALIDATE) ) { if( hRgn > 1 && bChildren ) { WND* wnd = wndPtr->child; POINT ptTotal, prevOrigin = {0,0}; POINT ptClient; ptClient.x = wndPtr->rectClient.left - wndPtr->rectWindow.left; ptClient.y = wndPtr->rectClient.top - wndPtr->rectWindow.top; for( ptTotal.x = ptTotal.y = 0; wnd; wnd = wnd->next ) { if( wnd->dwStyle & WS_VISIBLE ) { POINT ptOffset; r.left = wnd->rectWindow.left + ptClient.x; r.right = wnd->rectWindow.right + ptClient.x; r.top = wnd->rectWindow.top + ptClient.y; r.bottom = wnd->rectWindow.bottom + ptClient.y; ptOffset.x = r.left - prevOrigin.x; ptOffset.y = r.top - prevOrigin.y; OffsetRect( &r, -ptTotal.x, -ptTotal.y ); if( RectInRegion( hRgn, &r ) ) { OffsetRgn( hRgn, -ptOffset.x, -ptOffset.y ); RDW_UpdateRgns( wnd, hRgn, flags, FALSE ); prevOrigin.x = r.left + ptTotal.x; prevOrigin.y = r.top + ptTotal.y; ptTotal.x += ptOffset.x; ptTotal.y += ptOffset.y; } } } OffsetRgn( hRgn, ptTotal.x, ptTotal.y ); bChildren = 0; } } /* handle hRgn == 1 (alias for entire window) and/or internal paint recursion */ if( bChildren ) { WND* wnd; for( wnd = wndPtr->child; wnd; wnd = wnd->next ) if( wnd->dwStyle & WS_VISIBLE ) RDW_UpdateRgns( wnd, hRgn, flags, FALSE ); } OUT: /* Set/clear internal paint flag */ if (flags & RDW_INTERNALPAINT) { if ( !wndPtr->hrgnUpdate && !(wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); wndPtr->flags |= WIN_INTERNAL_PAINT; } else if (flags & RDW_NOINTERNALPAINT) { if ( !wndPtr->hrgnUpdate && (wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); wndPtr->flags &= ~WIN_INTERNAL_PAINT; } } /*********************************************************************** * RDW_Paint [RedrawWindow() helper] * * Walks the window tree and paints/erases windows that have * nonzero update regions according to redraw flags. hrgn is a scratch * region passed down during recursion. Must not be 1. * */ static HRGN RDW_Paint( WND* wndPtr, HRGN hrgn, UINT flags, UINT ex ) { /* NOTE: wndPtr is locked by caller. * * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask * SendMessage() calls. This is a comment inside DefWindowProc() source * from 16-bit SDK: * * This message avoids lots of inter-app message traffic * by switching to the other task and continuing the * recursion there. * * wParam = flags * LOWORD(lParam) = hrgnClip * HIWORD(lParam) = hwndSkip (not used; always NULL) * */ HDC hDC; HWND hWnd = wndPtr->hwndSelf; BOOL bIcon = ((wndPtr->dwStyle & WS_MINIMIZE) && GetClassWord(wndPtr->hwndSelf, GCW_HICON)); /* Erase/update the window itself ... */ TRACE("\thwnd %04x [%04x] -> hrgn [%04x], flags [%04x]\n", hWnd, wndPtr->hrgnUpdate, hrgn, flags ); /* * Check if this window should delay it's processing of WM_NCPAINT. * See WIN_HaveToDelayNCPAINT for a description of the mechanism */ if ((ex & RDW_EX_DELAY_NCPAINT) || WIN_HaveToDelayNCPAINT(wndPtr, 0) ) ex |= RDW_EX_DELAY_NCPAINT; if (flags & RDW_UPDATENOW) { if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */ SendMessage16( hWnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 ); } else if ((flags & RDW_ERASENOW) || (ex & RDW_EX_TOPFRAME)) { UINT dcx = DCX_INTERSECTRGN | DCX_USESTYLE | DCX_KEEPCLIPRGN | DCX_WINDOWPAINT | DCX_CACHE; HRGN hrgnRet; hrgnRet = WIN_UpdateNCRgn(wndPtr, hrgn, UNC_REGION | UNC_CHECK | ((ex & RDW_EX_TOPFRAME) ? UNC_ENTIRE : 0) | ((ex & RDW_EX_DELAY_NCPAINT) ? UNC_DELAY_NCPAINT : 0) ); if( hrgnRet ) { if( hrgnRet > 1 ) hrgn = hrgnRet; else hrgnRet = 0; /* entire client */ if( wndPtr->flags & WIN_NEEDS_ERASEBKGND ) { if( bIcon ) dcx |= DCX_WINDOW; else if( hrgnRet ) OffsetRgn( hrgnRet, wndPtr->rectWindow.left - wndPtr->rectClient.left, wndPtr->rectWindow.top - wndPtr->rectClient.top); else dcx &= ~DCX_INTERSECTRGN; if (( hDC = GetDCEx( hWnd, hrgnRet, dcx )) ) { if (SendMessage16( hWnd, (bIcon) ? WM_ICONERASEBKGND : WM_ERASEBKGND, (WPARAM16)hDC, 0 )) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; ReleaseDC( hWnd, hDC ); } } } } if( !IsWindow(hWnd) ) return hrgn; ex &= ~RDW_EX_TOPFRAME; /* ... and its child windows */ if( wndPtr->child && !(flags & RDW_NOCHILDREN) && !(wndPtr->dwStyle & WS_MINIMIZE) && ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) ) { WND** list, **ppWnd; if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) ) { wndPtr = NULL; for (ppWnd = list; *ppWnd; ppWnd++) { WIN_UpdateWndPtr(&wndPtr,*ppWnd); if (!IsWindow(wndPtr->hwndSelf)) continue; if ( (wndPtr->dwStyle & WS_VISIBLE) && (wndPtr->hrgnUpdate || (wndPtr->flags & WIN_INTERNAL_PAINT)) ) hrgn = RDW_Paint( wndPtr, hrgn, flags, ex ); } WIN_ReleaseWndPtr(wndPtr); WIN_ReleaseWinArray(list); } } return hrgn; } /*********************************************************************** * PAINT_RedrawWindow * */ BOOL PAINT_RedrawWindow( HWND hwnd, const RECT *rectUpdate, HRGN hrgnUpdate, UINT flags, UINT ex ) { HRGN hRgn = 0; RECT r, r2; POINT pt; WND* wndPtr; if (!hwnd) hwnd = GetDesktopWindow(); if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; /* check if the window or its parents are visible/not minimized */ if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) ) { WIN_ReleaseWndPtr(wndPtr); return TRUE; } if (TRACE_ON(win)) { if( hrgnUpdate ) { GetRgnBox( hrgnUpdate, &r ); TRACE( "%04x (%04x) NULL %04x box (%i,%i-%i,%i) flags=%04x, exflags=%04x\n", hwnd, wndPtr->hrgnUpdate, hrgnUpdate, r.left, r.top, r.right, r.bottom, flags, ex); } else { if( rectUpdate ) r = *rectUpdate; else SetRectEmpty( &r ); TRACE( "%04x (%04x) %s %d,%d-%d,%d %04x flags=%04x, exflags=%04x\n", hwnd, wndPtr->hrgnUpdate, rectUpdate ? "rect" : "NULL", r.left, r.top, r.right, r.bottom, hrgnUpdate, flags, ex ); } } /* prepare an update region in window coordinates */ if( flags & RDW_FRAME ) r = wndPtr->rectWindow; else r = wndPtr->rectClient; if( ex & RDW_EX_XYWINDOW ) { pt.x = pt.y = 0; OffsetRect( &r, -wndPtr->rectWindow.left, -wndPtr->rectWindow.top ); } else { pt.x = wndPtr->rectClient.left - wndPtr->rectWindow.left; pt.y = wndPtr->rectClient.top - wndPtr->rectWindow.top; OffsetRect( &r, -wndPtr->rectClient.left, -wndPtr->rectClient.top ); } if (flags & RDW_INVALIDATE) /* ------------------------- Invalidate */ { /* If the window doesn't have hrgnUpdate we leave hRgn zero * and put a new region straight into wndPtr->hrgnUpdate * so that RDW_UpdateRgns() won't have to do any extra work. */ if( hrgnUpdate ) { if( wndPtr->hrgnUpdate ) hRgn = REGION_CropRgn( 0, hrgnUpdate, NULL, &pt ); else wndPtr->hrgnUpdate = REGION_CropRgn( 0, hrgnUpdate, &r, &pt ); } else if( rectUpdate ) { if( !IntersectRect( &r2, &r, rectUpdate ) ) goto END; OffsetRect( &r2, pt.x, pt.y ); rect2i: if( wndPtr->hrgnUpdate == 0 ) wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 ); else hRgn = CreateRectRgnIndirect( &r2 ); } else /* entire window or client depending on RDW_FRAME */ { if( flags & RDW_FRAME ) { if( wndPtr->hrgnUpdate ) DeleteObject( wndPtr->hrgnUpdate ); wndPtr->hrgnUpdate = 1; } else { GETCLIENTRECTW( wndPtr, r2 ); goto rect2i; } } } else if (flags & RDW_VALIDATE) /* ------------------------- Validate */ { /* In this we cannot leave with zero hRgn */ if( hrgnUpdate ) { hRgn = REGION_CropRgn( hRgn, hrgnUpdate, &r, &pt ); GetRgnBox( hRgn, &r2 ); if( IsRectEmpty( &r2 ) ) goto END; } else if( rectUpdate ) { if( !IntersectRect( &r2, &r, rectUpdate ) ) goto END; OffsetRect( &r2, pt.x, pt.y ); rect2v: hRgn = CreateRectRgnIndirect( &r2 ); } else /* entire window or client depending on RDW_FRAME */ { if( flags & RDW_FRAME ) hRgn = 1; else { GETCLIENTRECTW( wndPtr, r2 ); goto rect2v; } } } /* At this point hRgn is either an update region in window coordinates or 1 or 0 */ RDW_UpdateRgns( wndPtr, hRgn, flags, TRUE ); /* Erase/update windows, from now on hRgn is a scratch region */ hRgn = RDW_Paint( wndPtr, (hRgn == 1) ? 0 : hRgn, flags, ex ); END: if( hRgn > 1 && (hRgn != hrgnUpdate) ) DeleteObject(hRgn ); WIN_ReleaseWndPtr(wndPtr); return TRUE; } /*********************************************************************** * RedrawWindow32 (USER32.426) */ BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rectUpdate, HRGN hrgnUpdate, UINT flags ) { return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 ); } /*********************************************************************** * RedrawWindow16 (USER.290) */ BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate, HRGN16 hrgnUpdate, UINT16 flags ) { if (rectUpdate) { RECT r; CONV_RECT16TO32( rectUpdate, &r ); return (BOOL16)RedrawWindow( (HWND)hwnd, &r, hrgnUpdate, flags ); } return (BOOL16)PAINT_RedrawWindow( (HWND)hwnd, NULL, (HRGN)hrgnUpdate, flags, 0 ); } /*********************************************************************** * UpdateWindow16 (USER.124) */ void WINAPI UpdateWindow16( HWND16 hwnd ) { PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 ); } /*********************************************************************** * UpdateWindow32 (USER32.567) */ void WINAPI UpdateWindow( HWND hwnd ) { PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 ); } /*********************************************************************** * InvalidateRgn16 (USER.126) */ void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase ) { PAINT_RedrawWindow((HWND)hwnd, NULL, (HRGN)hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 ); } /*********************************************************************** * InvalidateRgn32 (USER32.329) */ BOOL WINAPI InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) { return PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 ); } /*********************************************************************** * InvalidateRect16 (USER.125) */ void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase ) { RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); } /*********************************************************************** * InvalidateRect32 (USER32.328) */ BOOL WINAPI InvalidateRect( HWND hwnd, const RECT *rect, BOOL erase ) { return PAINT_RedrawWindow( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 ); } /*********************************************************************** * ValidateRgn16 (USER.128) */ void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn ) { PAINT_RedrawWindow( (HWND)hwnd, NULL, (HRGN)hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 ); } /*********************************************************************** * ValidateRgn32 (USER32.572) */ void WINAPI ValidateRgn( HWND hwnd, HRGN hrgn ) { PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 ); } /*********************************************************************** * ValidateRect16 (USER.127) */ void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect ) { RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN ); } /*********************************************************************** * ValidateRect32 (USER32.571) */ void WINAPI ValidateRect( HWND hwnd, const RECT *rect ) { PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 ); } /*********************************************************************** * GetUpdateRect16 (USER.190) */ BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase ) { RECT r; BOOL16 ret; if (!rect) return GetUpdateRect( hwnd, NULL, erase ); ret = GetUpdateRect( hwnd, &r, erase ); CONV_RECT32TO16( &r, rect ); return ret; } /*********************************************************************** * GetUpdateRect32 (USER32.297) */ BOOL WINAPI GetUpdateRect( HWND hwnd, LPRECT rect, BOOL erase ) { BOOL retvalue; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return FALSE; if (rect) { if (wndPtr->hrgnUpdate > 1) { HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 ); if (GetUpdateRgn( hwnd, hrgn, erase ) == ERROR) { retvalue = FALSE; goto END; } GetRgnBox( hrgn, rect ); DeleteObject( hrgn ); if (GetClassLongA(wndPtr->hwndSelf, GCL_STYLE) & CS_OWNDC) { if (GetMapMode(wndPtr->dce->hDC) != MM_TEXT) { DPtoLP (wndPtr->dce->hDC, (LPPOINT)rect, 2); } } } else if( wndPtr->hrgnUpdate == 1 ) { GetClientRect( hwnd, rect ); if (erase) RedrawWindow( hwnd, NULL, 0, RDW_FRAME | RDW_ERASENOW | RDW_NOCHILDREN ); } else SetRectEmpty( rect ); } retvalue = (wndPtr->hrgnUpdate >= 1); END: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * GetUpdateRgn16 (USER.237) */ INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase ) { return GetUpdateRgn( hwnd, hrgn, erase ); } /*********************************************************************** * GetUpdateRgn (USER32.298) */ INT WINAPI GetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) { INT retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return ERROR; if (wndPtr->hrgnUpdate == 0) { SetRectRgn( hrgn, 0, 0, 0, 0 ); retval = NULLREGION; goto END; } else if (wndPtr->hrgnUpdate == 1) { SetRectRgn( hrgn, 0, 0, wndPtr->rectClient.right - wndPtr->rectClient.left, wndPtr->rectClient.bottom - wndPtr->rectClient.top ); retval = SIMPLEREGION; } else { retval = CombineRgn( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY ); OffsetRgn( hrgn, wndPtr->rectWindow.left - wndPtr->rectClient.left, wndPtr->rectWindow.top - wndPtr->rectClient.top ); } if (erase) RedrawWindow( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN ); END: WIN_ReleaseWndPtr(wndPtr); return retval; } /*********************************************************************** * ExcludeUpdateRgn16 (USER.238) */ INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd ) { return ExcludeUpdateRgn( hdc, hwnd ); } /*********************************************************************** * ExcludeUpdateRgn32 (USER32.195) */ INT WINAPI ExcludeUpdateRgn( HDC hdc, HWND hwnd ) { RECT rect; WND * wndPtr; if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR; if (wndPtr->hrgnUpdate) { INT ret; HRGN hrgn = CreateRectRgn(wndPtr->rectWindow.left - wndPtr->rectClient.left, wndPtr->rectWindow.top - wndPtr->rectClient.top, wndPtr->rectWindow.right - wndPtr->rectClient.left, wndPtr->rectWindow.bottom - wndPtr->rectClient.top); if( wndPtr->hrgnUpdate > 1 ) { CombineRgn(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY); OffsetRgn(hrgn, wndPtr->rectWindow.left - wndPtr->rectClient.left, wndPtr->rectWindow.top - wndPtr->rectClient.top ); } /* do ugly coordinate translations in dce.c */ ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn ); DeleteObject( hrgn ); WIN_ReleaseWndPtr(wndPtr); return ret; } WIN_ReleaseWndPtr(wndPtr); return GetClipBox( hdc, &rect ); } /*********************************************************************** * FillRect16 (USER.81) */ INT16 WINAPI FillRect16( HDC16 hdc, const RECT16 *rect, HBRUSH16 hbrush ) { HBRUSH16 prevBrush; /* coordinates are logical so we cannot fast-check 'rect', * it will be done later in the PatBlt(). */ if (!(prevBrush = SelectObject16( hdc, hbrush ))) return 0; PatBlt( hdc, rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top, PATCOPY ); SelectObject16( hdc, prevBrush ); return 1; } /*********************************************************************** * FillRect (USER32.197) */ INT WINAPI FillRect( HDC hdc, const RECT *rect, HBRUSH hbrush ) { HBRUSH prevBrush; if (!(prevBrush = SelectObject( hdc, hbrush ))) return 0; PatBlt( hdc, rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top, PATCOPY ); SelectObject( hdc, prevBrush ); return 1; } /*********************************************************************** * InvertRect16 (USER.82) */ void WINAPI InvertRect16( HDC16 hdc, const RECT16 *rect ) { PatBlt( hdc, rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top, DSTINVERT ); } /*********************************************************************** * InvertRect (USER32.330) */ BOOL WINAPI InvertRect( HDC hdc, const RECT *rect ) { return PatBlt( hdc, rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top, DSTINVERT ); } /*********************************************************************** * FrameRect (USER32.203) */ INT WINAPI FrameRect( HDC hdc, const RECT *rect, HBRUSH hbrush ) { HBRUSH prevBrush; RECT r = *rect; LPtoDP(hdc, (POINT *)&r, 2); if ( (r.right <= r.left) || (r.bottom <= r.top) ) return 0; if (!(prevBrush = SelectObject( hdc, hbrush ))) return 0; PatBlt( hdc, r.left, r.top, 1, r.bottom - r.top, PATCOPY ); PatBlt( hdc, r.right - 1, r.top, 1, r.bottom - r.top, PATCOPY ); PatBlt( hdc, r.left, r.top, r.right - r.left, 1, PATCOPY ); PatBlt( hdc, r.left, r.bottom - 1, r.right - r.left, 1, PATCOPY ); SelectObject( hdc, prevBrush ); return TRUE; } /*********************************************************************** * FrameRect16 (USER.83) */ INT16 WINAPI FrameRect16( HDC16 hdc, const RECT16 *rect16, HBRUSH16 hbrush ) { RECT rect; CONV_RECT16TO32( rect16, &rect ); return FrameRect( hdc, &rect, hbrush ); } /*********************************************************************** * DrawFocusRect16 (USER.466) */ void WINAPI DrawFocusRect16( HDC16 hdc, const RECT16* rc ) { RECT rect32; CONV_RECT16TO32( rc, &rect32 ); DrawFocusRect( hdc, &rect32 ); } /*********************************************************************** * DrawFocusRect (USER32.156) * * FIXME: PatBlt(PATINVERT) with background brush. */ BOOL WINAPI DrawFocusRect( HDC hdc, const RECT* rc ) { HBRUSH hOldBrush; HPEN hOldPen, hNewPen; INT oldDrawMode, oldBkMode; hOldBrush = SelectObject(hdc, GetStockObject(NULL_BRUSH)); hNewPen = CreatePen(PS_DOT, 1, GetSysColor(COLOR_WINDOWTEXT)); hOldPen = SelectObject(hdc, hNewPen); oldDrawMode = SetROP2(hdc, R2_XORPEN); oldBkMode = SetBkMode(hdc, TRANSPARENT); Rectangle(hdc, rc->left, rc->top, rc->right, rc->bottom); SetBkMode(hdc, oldBkMode); SetROP2(hdc, oldDrawMode); SelectObject(hdc, hOldPen); DeleteObject(hNewPen); SelectObject(hdc, hOldBrush); return TRUE; } /********************************************************************** * DrawAnimatedRects16 (USER.448) */ BOOL16 WINAPI DrawAnimatedRects16( HWND16 hwnd, INT16 idAni, const RECT16* lprcFrom, const RECT16* lprcTo ) { RECT rcFrom32, rcTo32; rcFrom32.left = (INT)lprcFrom->left; rcFrom32.top = (INT)lprcFrom->top; rcFrom32.right = (INT)lprcFrom->right; rcFrom32.bottom = (INT)lprcFrom->bottom; rcTo32.left = (INT)lprcTo->left; rcTo32.top = (INT)lprcTo->top; rcTo32.right = (INT)lprcTo->right; rcTo32.bottom = (INT)lprcTo->bottom; return DrawAnimatedRects((HWND)hwnd, (INT)idAni, &rcFrom32, &rcTo32); } /********************************************************************** * DrawAnimatedRects (USER32.153) */ BOOL WINAPI DrawAnimatedRects( HWND hwnd, int idAni, const RECT* lprcFrom, const RECT* lprcTo ) { FIXME_(win)("(0x%x,%d,%p,%p): stub\n",hwnd,idAni,lprcFrom,lprcTo); return TRUE; } /********************************************************************** * PAINTING_DrawStateJam * * Jams in the requested type in the dc */ static BOOL PAINTING_DrawStateJam(HDC hdc, UINT opcode, DRAWSTATEPROC func, LPARAM lp, WPARAM wp, LPRECT rc, UINT dtflags, BOOL unicode, BOOL _32bit) { HDC memdc; HBITMAP hbmsave; BOOL retval; INT cx = rc->right - rc->left; INT cy = rc->bottom - rc->top; switch(opcode) { case DST_TEXT: case DST_PREFIXTEXT: if(unicode) return DrawTextW(hdc, (LPWSTR)lp, (INT)wp, rc, dtflags); else if(_32bit) return DrawTextA(hdc, (LPSTR)lp, (INT)wp, rc, dtflags); else return DrawTextA(hdc, (LPSTR)PTR_SEG_TO_LIN(lp), (INT)wp, rc, dtflags); case DST_ICON: return DrawIcon(hdc, rc->left, rc->top, (HICON)lp); case DST_BITMAP: memdc = CreateCompatibleDC(hdc); if(!memdc) return FALSE; hbmsave = (HBITMAP)SelectObject(memdc, (HBITMAP)lp); if(!hbmsave) { DeleteDC(memdc); return FALSE; } retval = BitBlt(hdc, rc->left, rc->top, cx, cy, memdc, 0, 0, SRCCOPY); SelectObject(memdc, hbmsave); DeleteDC(memdc); return retval; case DST_COMPLEX: if(func) if(_32bit) return func(hdc, lp, wp, cx, cy); else return (BOOL)((DRAWSTATEPROC16)func)((HDC16)hdc, (LPARAM)lp, (WPARAM16)wp, (INT16)cx, (INT16)cy); else return FALSE; } return FALSE; } /********************************************************************** * PAINTING_DrawState() */ static BOOL PAINTING_DrawState(HDC hdc, HBRUSH hbr, DRAWSTATEPROC func, LPARAM lp, WPARAM wp, INT x, INT y, INT cx, INT cy, UINT flags, BOOL unicode, BOOL _32bit) { HBITMAP hbm, hbmsave; HFONT hfsave; HBRUSH hbsave; HDC memdc; RECT rc; UINT dtflags = DT_NOCLIP; COLORREF fg, bg; UINT opcode = flags & 0xf; INT len = wp; BOOL retval, tmp; if((opcode == DST_TEXT || opcode == DST_PREFIXTEXT) && !len) /* The string is '\0' terminated */ { if(unicode) len = lstrlenW((LPWSTR)lp); else if(_32bit) len = lstrlenA((LPSTR)lp); else len = lstrlenA((LPSTR)PTR_SEG_TO_LIN(lp)); } /* Find out what size the image has if not given by caller */ if(!cx || !cy) { SIZE s; CURSORICONINFO *ici; BITMAP bm; switch(opcode) { case DST_TEXT: case DST_PREFIXTEXT: if(unicode) retval = GetTextExtentPoint32W(hdc, (LPWSTR)lp, len, &s); else if(_32bit) retval = GetTextExtentPoint32A(hdc, (LPSTR)lp, len, &s); else retval = GetTextExtentPoint32A(hdc, PTR_SEG_TO_LIN(lp), len, &s); if(!retval) return FALSE; break; case DST_ICON: ici = (CURSORICONINFO *)GlobalLock16((HGLOBAL16)lp); if(!ici) return FALSE; s.cx = ici->nWidth; s.cy = ici->nHeight; GlobalUnlock16((HGLOBAL16)lp); break; case DST_BITMAP: if(!GetObjectA((HBITMAP)lp, sizeof(bm), &bm)) return FALSE; s.cx = bm.bmWidth; s.cy = bm.bmHeight; break; case DST_COMPLEX: /* cx and cy must be set in this mode */ return FALSE; } if(!cx) cx = s.cx; if(!cy) cy = s.cy; } rc.left = x; rc.top = y; rc.right = x + cx; rc.bottom = y + cy; if(flags & DSS_RIGHT) /* This one is not documented in the win32.hlp file */ dtflags |= DT_RIGHT; if(opcode == DST_TEXT) dtflags |= DT_NOPREFIX; /* For DSS_NORMAL we just jam in the image and return */ if((flags & 0x7ff0) == DSS_NORMAL) { return PAINTING_DrawStateJam(hdc, opcode, func, lp, len, &rc, dtflags, unicode, _32bit); } /* For all other states we need to convert the image to B/W in a local bitmap */ /* before it is displayed */ fg = SetTextColor(hdc, RGB(0, 0, 0)); bg = SetBkColor(hdc, RGB(255, 255, 255)); hbm = (HBITMAP)NULL; hbmsave = (HBITMAP)NULL; memdc = (HDC)NULL; hbsave = (HBRUSH)NULL; retval = FALSE; /* assume failure */ /* From here on we must use "goto cleanup" when something goes wrong */ hbm = CreateBitmap(cx, cy, 1, 1, NULL); if(!hbm) goto cleanup; memdc = CreateCompatibleDC(hdc); if(!memdc) goto cleanup; hbmsave = (HBITMAP)SelectObject(memdc, hbm); if(!hbmsave) goto cleanup; rc.left = rc.top = 0; rc.right = cx; rc.bottom = cy; if(!FillRect(memdc, &rc, (HBRUSH)GetStockObject(WHITE_BRUSH))) goto cleanup; SetBkColor(memdc, RGB(255, 255, 255)); SetTextColor(memdc, RGB(0, 0, 0)); hfsave = (HFONT)SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT)); if(!hfsave && (opcode == DST_TEXT || opcode == DST_PREFIXTEXT)) goto cleanup; tmp = PAINTING_DrawStateJam(memdc, opcode, func, lp, len, &rc, dtflags, unicode, _32bit); if(hfsave) SelectObject(memdc, hfsave); if(!tmp) goto cleanup; /* These states cause the image to be dithered */ if(flags & (DSS_UNION|DSS_DISABLED)) { hbsave = (HBRUSH)SelectObject(memdc, CACHE_GetPattern55AABrush()); if(!hbsave) goto cleanup; tmp = PatBlt(memdc, 0, 0, cx, cy, 0x00FA0089); if(hbsave) SelectObject(memdc, hbsave); if(!tmp) goto cleanup; } hbsave = (HBRUSH)SelectObject(hdc, hbr ? hbr : GetStockObject(WHITE_BRUSH)); if(!hbsave) goto cleanup; if(!BitBlt(hdc, x, y, cx, cy, memdc, 0, 0, 0x00B8074A)) goto cleanup; /* DSS_DEFAULT makes the image boldface */ if(flags & DSS_DEFAULT) { if(!BitBlt(hdc, x+1, y, cx, cy, memdc, 0, 0, 0x00B8074A)) goto cleanup; } retval = TRUE; /* We succeeded */ cleanup: SetTextColor(hdc, fg); SetBkColor(hdc, bg); if(hbsave) SelectObject(hdc, hbsave); if(hbmsave) SelectObject(memdc, hbmsave); if(hbm) DeleteObject(hbm); if(memdc) DeleteDC(memdc); return retval; } /********************************************************************** * DrawStateA() (USER32.162) */ BOOL WINAPI DrawStateA(HDC hdc, HBRUSH hbr, DRAWSTATEPROC func, LPARAM ldata, WPARAM wdata, INT x, INT y, INT cx, INT cy, UINT flags) { return PAINTING_DrawState(hdc, hbr, func, ldata, wdata, x, y, cx, cy, flags, FALSE, TRUE); } /********************************************************************** * DrawStateW() (USER32.163) */ BOOL WINAPI DrawStateW(HDC hdc, HBRUSH hbr, DRAWSTATEPROC func, LPARAM ldata, WPARAM wdata, INT x, INT y, INT cx, INT cy, UINT flags) { return PAINTING_DrawState(hdc, hbr, func, ldata, wdata, x, y, cx, cy, flags, TRUE, TRUE); } /********************************************************************** * DrawState16() (USER.449) */ BOOL16 WINAPI DrawState16(HDC16 hdc, HBRUSH16 hbr, DRAWSTATEPROC16 func, LPARAM ldata, WPARAM16 wdata, INT16 x, INT16 y, INT16 cx, INT16 cy, UINT16 flags) { return PAINTING_DrawState(hdc, hbr, (DRAWSTATEPROC)func, ldata, wdata, x, y, cx, cy, flags, FALSE, FALSE); }