/* * Window painting functions * * Copyright 1993, 1994, 1995 Alexandre Julliard */ #include #include #include "win.h" #include "queue.h" #include "gdi.h" #include "stddebug.h" /* #define DEBUG_WIN */ #include "debug.h" /* Last CTLCOLOR id */ #define CTLCOLOR_MAX CTLCOLOR_STATIC /*********************************************************************** * WIN_UpdateNCArea * */ void WIN_UpdateNCArea(WND* wnd, BOOL bUpdate) { POINT pt = {0, 0}; HRGN hClip = 1; dprintf_nonclient(stddeb,"NCUpdate: hwnd %04x, hrgnUpdate %04x\n", wnd->hwndSelf, wnd->hrgnUpdate ); /* desktop window doesn't have nonclient area */ if(wnd == WIN_GetDesktop()) { wnd->flags &= ~WIN_NEEDS_NCPAINT; return; } if( wnd->hrgnUpdate > 1 ) { ClientToScreen(wnd->hwndSelf, &pt); hClip = CreateRectRgn( 0, 0, 0, 0 ); if (!CombineRgn(hClip, wnd->hrgnUpdate, 0, RGN_COPY) ) { DeleteObject(hClip); hClip = 1; } else OffsetRgn(hClip, pt.x, pt.y); if (bUpdate) { /* exclude non-client area from update region */ HRGN hrgn = CreateRectRgn(0, 0, wnd->rectClient.right - wnd->rectClient.left, wnd->rectClient.bottom - wnd->rectClient.top); if (hrgn && (CombineRgn(wnd->hrgnUpdate, wnd->hrgnUpdate, hrgn, RGN_AND) == NULLREGION)) { DeleteObject(wnd->hrgnUpdate); wnd->hrgnUpdate = 1; } DeleteObject( hrgn ); } } wnd->flags &= ~WIN_NEEDS_NCPAINT; if ((wnd->hwndSelf == GetActiveWindow()) && !(wnd->flags & WIN_NCACTIVATED)) { wnd->flags |= WIN_NCACTIVATED; if( hClip > 1) DeleteObject(hClip); hClip = 1; } if (hClip) SendMessage( wnd->hwndSelf, WM_NCPAINT, hClip, 0L ); if (hClip > 1) DeleteObject( hClip ); } /*********************************************************************** * BeginPaint (USER.39) */ HDC BeginPaint( HWND hwnd, LPPAINTSTRUCT lps ) { HRGN hrgnUpdate; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT; if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE ); if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) || (wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); wndPtr->hrgnUpdate = 0; wndPtr->flags &= ~WIN_INTERNAL_PAINT; HideCaret( hwnd ); lps->hdc = GetDCEx( hwnd, hrgnUpdate, DCX_INTERSECTRGN | DCX_USESTYLE ); if(hrgnUpdate > 1) DeleteObject( hrgnUpdate ); if (!lps->hdc) { fprintf(stderr, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd); return 0; } GetRgnBox( InquireVisRgn(lps->hdc), &lps->rcPaint ); DPtoLP( lps->hdc, (LPPOINT)&lps->rcPaint, 2 ); if (wndPtr->flags & WIN_NEEDS_ERASEBKGND) { wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; lps->fErase = !SendMessage( hwnd, WM_ERASEBKGND, (WPARAM)lps->hdc, 0 ); } else lps->fErase = TRUE; return lps->hdc; } /*********************************************************************** * EndPaint (USER.40) */ BOOL EndPaint( HWND hwnd, const PAINTSTRUCT* lps ) { ReleaseDC( hwnd, lps->hdc ); ShowCaret( hwnd ); return TRUE; } /*********************************************************************** * FillWindow (USER.324) */ void FillWindow( HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush ) { RECT rect; GetClientRect( hwnd, &rect ); DPtoLP( hdc, (LPPOINT)&rect, 2 ); PaintRect( hwndParent, hwnd, hdc, hbrush, &rect ); } /*********************************************************************** * PaintRect (USER.325) */ void PaintRect(HWND hwndParent, HWND hwnd, HDC hdc, HBRUSH hbrush, LPRECT rect) { /* Send WM_CTLCOLOR message if needed */ if ((DWORD)hbrush <= CTLCOLOR_MAX) { if (!hwndParent) return; #ifdef WINELIB32 hbrush = (HBRUSH)SendMessage( hwndParent, WM_CTLCOLORMSGBOX+(DWORD)hbrush, (WPARAM)hdc, (LPARAM)hwnd ); #else hbrush = (HBRUSH)SendMessage( hwndParent, WM_CTLCOLOR, hdc, MAKELONG( hwnd, hbrush ) ); #endif } if (hbrush) FillRect( hdc, rect, hbrush ); } /*********************************************************************** * GetControlBrush (USER.326) */ HBRUSH GetControlBrush( HWND hwnd, HDC hdc, WORD control ) { #ifdef WINELIB32 return (HBRUSH)SendMessage( GetParent(hwnd), WM_CTLCOLOR+control, (WPARAM)hdc, (LPARAM)hwnd ); #else return (HBRUSH)SendMessage( GetParent(hwnd), WM_CTLCOLOR, hdc, MAKELONG( hwnd, control ) ); #endif } /*********************************************************************** * RedrawWindow (USER.290) */ BOOL RedrawWindow( HWND hwnd, LPRECT rectUpdate, HRGN hrgnUpdate, UINT flags ) { HRGN hrgn; RECT rectClient; WND * wndPtr; if (!hwnd) hwnd = GetDesktopWindow(); if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; if (!IsWindowVisible(hwnd) || (wndPtr->flags & WIN_NO_REDRAW)) return TRUE; /* No redraw needed */ if (rectUpdate) { dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n", hwnd, rectUpdate->left, rectUpdate->top, rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags ); } else { dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n", hwnd, hrgnUpdate, flags); } GetClientRect( hwnd, &rectClient ); if (flags & RDW_INVALIDATE) /* Invalidate */ { int rgnNotEmpty = COMPLEXREGION; if (wndPtr->hrgnUpdate > 1) /* Is there already an update region? */ { if ((hrgn = hrgnUpdate) == 0) hrgn = CreateRectRgnIndirect( rectUpdate ? rectUpdate : &rectClient ); rgnNotEmpty = CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hrgn, RGN_OR ); if (!hrgnUpdate) DeleteObject( hrgn ); } else /* No update region yet */ { if (!(wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); if (hrgnUpdate) { wndPtr->hrgnUpdate = CreateRectRgn( 0, 0, 0, 0 ); rgnNotEmpty = CombineRgn( wndPtr->hrgnUpdate, hrgnUpdate, 0, RGN_COPY ); } else wndPtr->hrgnUpdate = CreateRectRgnIndirect( rectUpdate ? rectUpdate : &rectClient ); } if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT; /* check for bogus update region */ if ( rgnNotEmpty == NULLREGION ) { wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; DeleteObject(wndPtr->hrgnUpdate); wndPtr->hrgnUpdate=0; if (!(wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); } else if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND; flags |= RDW_FRAME; /* Force invalidating the frame of children */ } else if (flags & RDW_VALIDATE) /* Validate */ { /* We need an update region in order to validate anything */ if (wndPtr->hrgnUpdate > 1) { if (!hrgnUpdate && !rectUpdate) { /* Special case: validate everything */ DeleteObject( wndPtr->hrgnUpdate ); wndPtr->hrgnUpdate = 0; } else { if ((hrgn = hrgnUpdate) == 0) hrgn = CreateRectRgnIndirect( rectUpdate ); if (CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hrgn, RGN_DIFF ) == NULLREGION) { DeleteObject( wndPtr->hrgnUpdate ); wndPtr->hrgnUpdate = 0; } if (!hrgnUpdate) DeleteObject( hrgn ); } if (!wndPtr->hrgnUpdate) /* No more update region */ 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; } /* Set/clear internal paint flag */ if (flags & RDW_INTERNALPAINT) { if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); wndPtr->flags |= WIN_INTERNAL_PAINT; } else if (flags & RDW_NOINTERNALPAINT) { if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT)) QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); wndPtr->flags &= ~WIN_INTERNAL_PAINT; } /* Erase/update window */ if (flags & RDW_UPDATENOW) SendMessage( hwnd, WM_PAINT, 0, 0 ); else if (flags & RDW_ERASENOW) { if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, FALSE); if (wndPtr->flags & WIN_NEEDS_ERASEBKGND) { HDC hdc = GetDCEx( hwnd, wndPtr->hrgnUpdate, DCX_INTERSECTRGN | DCX_USESTYLE ); if (hdc) { /* Don't send WM_ERASEBKGND to icons */ /* (WM_ICONERASEBKGND is sent during processing of WM_NCPAINT) */ if (!(wndPtr->dwStyle & WS_MINIMIZE) || !WIN_CLASS_INFO(wndPtr).hIcon) { if (SendMessage( hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0 )) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; } ReleaseDC( hwnd, hdc ); } } } /* Recursively process children */ if (!(flags & RDW_NOCHILDREN) && ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN))) { if (hrgnUpdate) { HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 ); if (!hrgn) return TRUE; for (wndPtr = wndPtr->child; wndPtr; wndPtr = wndPtr->next) { CombineRgn( hrgn, hrgnUpdate, 0, RGN_COPY ); OffsetRgn( hrgn, -wndPtr->rectClient.left, -wndPtr->rectClient.top ); RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags ); } DeleteObject( hrgn ); } else { RECT rect; for (wndPtr = wndPtr->child; wndPtr; wndPtr = wndPtr->next) { if (rectUpdate) { rect = *rectUpdate; OffsetRect( &rect, -wndPtr->rectClient.left, -wndPtr->rectClient.top ); RedrawWindow( wndPtr->hwndSelf, &rect, 0, flags ); } else RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags ); } } } return TRUE; } /*********************************************************************** * UpdateWindow (USER.124) */ void UpdateWindow( HWND hwnd ) { RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN ); } /*********************************************************************** * InvalidateRgn (USER.126) */ void InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) { RedrawWindow( hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); } /*********************************************************************** * InvalidateRect (USER.125) */ void InvalidateRect( HWND hwnd, LPRECT rect, BOOL erase ) { RedrawWindow( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); } /*********************************************************************** * ValidateRgn (USER.128) */ void ValidateRgn( HWND hwnd, HRGN hrgn ) { RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN ); } /*********************************************************************** * ValidateRect (USER.127) */ void ValidateRect( HWND hwnd, LPRECT rect ) { RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN ); } /*********************************************************************** * GetUpdateRect (USER.190) */ BOOL GetUpdateRect( HWND hwnd, LPRECT rect, BOOL erase ) { 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) return FALSE; GetRgnBox( hrgn, rect ); DeleteObject( hrgn ); } else SetRectEmpty( rect ); } return (wndPtr->hrgnUpdate > 1); } /*********************************************************************** * GetUpdateRgn (USER.237) */ int GetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) { int retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return ERROR; if (wndPtr->hrgnUpdate <= 1) { SetRectRgn( hrgn, 0, 0, 0, 0 ); return NULLREGION; } retval = CombineRgn( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY ); if (erase) RedrawWindow( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN ); return retval; } /*********************************************************************** * ExcludeUpdateRgn (USER.238) */ int ExcludeUpdateRgn( HDC hdc, HWND hwnd ) { int retval = ERROR; HRGN hrgn; WND * wndPtr; if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR; if ((hrgn = CreateRectRgn( 0, 0, 0, 0 )) != 0) { retval = CombineRgn( hrgn, InquireVisRgn(hdc), (wndPtr->hrgnUpdate>1)?wndPtr->hrgnUpdate:0, (wndPtr->hrgnUpdate>1)?RGN_DIFF:RGN_COPY); if (retval) SelectVisRgn( hdc, hrgn ); DeleteObject( hrgn ); } return retval; }