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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/win/window/salobj.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/win/window/salobj.cxx')
-rw-r--r--vcl/win/window/salobj.cxx727
1 files changed, 727 insertions, 0 deletions
diff --git a/vcl/win/window/salobj.cxx b/vcl/win/window/salobj.cxx
new file mode 100644
index 000000000..e2ba3856b
--- /dev/null
+++ b/vcl/win/window/salobj.cxx
@@ -0,0 +1,727 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <string.h>
+
+#include <svsys.h>
+
+#include <vcl/svapp.hxx>
+#include <sal/log.hxx>
+
+#include <win/wincomp.hxx>
+#include <win/saldata.hxx>
+#include <win/salinst.h>
+#include <win/salframe.h>
+#include <win/salobj.h>
+
+#include <comphelper/windowserrorstring.hxx>
+
+static bool ImplIsSysWindowOrChild( HWND hWndParent, HWND hWndChild )
+{
+ if ( hWndParent == hWndChild )
+ return true;
+
+ HWND hTempWnd = ::GetParent( hWndChild );
+ while ( hTempWnd )
+ {
+ // stop searching if not a child window
+ if ( !(GetWindowStyle( hTempWnd ) & WS_CHILD) )
+ return false;
+ if ( hTempWnd == hWndParent )
+ return true;
+ hTempWnd = ::GetParent( hTempWnd );
+ }
+
+ return false;
+}
+
+WinSalObject* ImplFindSalObject( HWND hWndChild )
+{
+ SalData* pSalData = GetSalData();
+ WinSalObject* pObject = pSalData->mpFirstObject;
+ while ( pObject )
+ {
+ if ( ImplIsSysWindowOrChild( pObject->mhWndChild, hWndChild ) )
+ return pObject;
+
+ pObject = pObject->mpNextObject;
+ }
+
+ return nullptr;
+}
+
+static WinSalFrame* ImplFindSalObjectFrame( HWND hWnd )
+{
+ WinSalFrame* pFrame = nullptr;
+ WinSalObject* pObject = ImplFindSalObject( hWnd );
+ if ( pObject )
+ {
+ // find matching frame
+ HWND hWnd2 = ::GetParent( pObject->mhWnd );
+ pFrame = GetSalData()->mpFirstFrame;
+ while ( pFrame )
+ {
+ if ( pFrame->mhWnd == hWnd2 )
+ break;
+
+ pFrame = pFrame->mpNextFrame;
+ }
+ }
+
+ return pFrame;
+}
+
+static LRESULT CALLBACK SalSysMsgProc( int nCode, WPARAM wParam, LPARAM lParam )
+{
+ // Used for Unicode and none Unicode
+ SalData* pSalData = GetSalData();
+
+ if ( (nCode >= 0) && lParam )
+ {
+ CWPSTRUCT* pData = reinterpret_cast<CWPSTRUCT*>(lParam);
+ if ( (pData->message != WM_KEYDOWN) &&
+ (pData->message != WM_KEYUP) )
+ pSalData->mnSalObjWantKeyEvt = 0;
+
+
+ // check if we need to process data for a SalObject-window
+ WinSalObject* pObject;
+ if ( pData->message == WM_SETFOCUS )
+ {
+ pObject = ImplFindSalObject( pData->hwnd );
+ if ( pObject )
+ {
+ pObject->mhLastFocusWnd = pData->hwnd;
+ if ( ImplSalYieldMutexTryToAcquire() )
+ {
+ pObject->CallCallback( SalObjEvent::GetFocus );
+ ImplSalYieldMutexRelease();
+ }
+ else
+ {
+ bool const ret = PostMessageW(pObject->mhWnd, SALOBJ_MSG_POSTFOCUS, 0, 0);
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ }
+ }
+ else if ( pData->message == WM_KILLFOCUS )
+ {
+ pObject = ImplFindSalObject( pData->hwnd );
+ if ( pObject && !ImplFindSalObject( reinterpret_cast<HWND>(pData->wParam) ) )
+ {
+ // only call LoseFocus, if truly no child window gets the focus
+ if ( !pData->wParam || !ImplFindSalObject( reinterpret_cast<HWND>(pData->wParam) ) )
+ {
+ if ( ImplSalYieldMutexTryToAcquire() )
+ {
+ pObject->CallCallback( SalObjEvent::LoseFocus );
+ ImplSalYieldMutexRelease();
+ }
+ else
+ {
+ bool const ret = PostMessageW(pObject->mhWnd, SALOBJ_MSG_POSTFOCUS, 0, 0);
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ }
+ else
+ pObject->mhLastFocusWnd = reinterpret_cast<HWND>(pData->wParam);
+ }
+ }
+ }
+
+ return CallNextHookEx( pSalData->mhSalObjMsgHook, nCode, wParam, lParam );
+}
+
+bool ImplSalPreDispatchMsg( const MSG* pMsg )
+{
+ // Used for Unicode and none Unicode
+ SalData* pSalData = GetSalData();
+ WinSalObject* pObject;
+
+ if ( (pMsg->message == WM_LBUTTONDOWN) ||
+ (pMsg->message == WM_RBUTTONDOWN) ||
+ (pMsg->message == WM_MBUTTONDOWN) )
+ {
+ ImplSalYieldMutexAcquireWithWait();
+ pObject = ImplFindSalObject( pMsg->hwnd );
+ if ( pObject && !pObject->IsMouseTransparent() )
+ {
+ bool const ret = PostMessageW(pObject->mhWnd, SALOBJ_MSG_TOTOP, 0, 0);
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ ImplSalYieldMutexRelease();
+ }
+
+ if ( (pMsg->message == WM_KEYDOWN) ||
+ (pMsg->message == WM_KEYUP) )
+ {
+ // process KeyEvents even if the control does not process them itself
+ // SysKeys are processed as WM_SYSCOMMAND
+ // Char-Events are not processed, as they are not accelerator-relevant
+ bool bWantedKeyCode = false;
+ // A-Z, 0-9 only when combined with the Control-key
+ if ( ((pMsg->wParam >= 65) && (pMsg->wParam <= 90)) ||
+ ((pMsg->wParam >= 48) && (pMsg->wParam <= 57)) )
+ {
+ if ( GetKeyState( VK_CONTROL ) & 0x8000 )
+ bWantedKeyCode = true;
+ }
+ else if ( ((pMsg->wParam >= VK_F1) && (pMsg->wParam <= VK_F24)) ||
+ ((pMsg->wParam >= VK_SPACE) && (pMsg->wParam <= VK_HELP)) ||
+ (pMsg->wParam == VK_BACK) || (pMsg->wParam == VK_TAB) ||
+ (pMsg->wParam == VK_CLEAR) || (pMsg->wParam == VK_RETURN) ||
+ (pMsg->wParam == VK_ESCAPE) )
+ bWantedKeyCode = true;
+ if ( bWantedKeyCode )
+ {
+ ImplSalYieldMutexAcquireWithWait();
+ pObject = ImplFindSalObject( pMsg->hwnd );
+ if ( pObject )
+ pSalData->mnSalObjWantKeyEvt = pMsg->wParam;
+ ImplSalYieldMutexRelease();
+ }
+ }
+ // check WM_SYSCHAR, to activate menu with Alt key
+ else if ( pMsg->message == WM_SYSCHAR )
+ {
+ pSalData->mnSalObjWantKeyEvt = 0;
+
+ sal_uInt16 nKeyCode = LOWORD( pMsg->wParam );
+ // only 0-9 and A-Z
+ if ( ((nKeyCode >= 48) && (nKeyCode <= 57)) ||
+ ((nKeyCode >= 65) && (nKeyCode <= 90)) ||
+ ((nKeyCode >= 97) && (nKeyCode <= 122)) )
+ {
+ bool bRet = false;
+ ImplSalYieldMutexAcquireWithWait();
+ pObject = ImplFindSalObject( pMsg->hwnd );
+ if ( pObject )
+ {
+ if ( pMsg->hwnd == ::GetFocus() )
+ {
+ WinSalFrame* pFrame = ImplFindSalObjectFrame( pMsg->hwnd );
+ if ( pFrame )
+ {
+ if ( ImplHandleSalObjSysCharMsg( pFrame->mhWnd, pMsg->wParam, pMsg->lParam ) )
+ bRet = true;
+ }
+ }
+ }
+ ImplSalYieldMutexRelease();
+ if ( bRet )
+ return true;
+ }
+ }
+ else
+ pSalData->mnSalObjWantKeyEvt = 0;
+
+ return false;
+}
+
+void ImplSalPostDispatchMsg( const MSG* pMsg )
+{
+ // Used for Unicode and none Unicode
+ SalData *pSalData = GetSalData();
+
+ if ( (pMsg->message == WM_KEYDOWN) || (pMsg->message == WM_KEYUP) )
+ {
+ if ( pSalData->mnSalObjWantKeyEvt == pMsg->wParam )
+ {
+ pSalData->mnSalObjWantKeyEvt = 0;
+ if ( pMsg->hwnd == ::GetFocus() )
+ {
+ ImplSalYieldMutexAcquireWithWait();
+ WinSalFrame* pFrame = ImplFindSalObjectFrame( pMsg->hwnd );
+ if ( pFrame )
+ ImplHandleSalObjKeyMsg( pFrame->mhWnd, pMsg->message, pMsg->wParam, pMsg->lParam );
+ ImplSalYieldMutexRelease();
+ }
+ }
+ }
+
+ pSalData->mnSalObjWantKeyEvt = 0;
+}
+
+static LRESULT CALLBACK SalSysObjWndProc( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam, int& rDef )
+{
+ WinSalObject* pSysObj;
+ LRESULT nRet = 0;
+
+ switch( nMsg )
+ {
+ case WM_ERASEBKGND:
+ nRet = 1;
+ rDef = FALSE;
+ break;
+ case WM_PAINT:
+ {
+ PAINTSTRUCT aPs;
+ BeginPaint( hWnd, &aPs );
+ EndPaint( hWnd, &aPs );
+ rDef = FALSE;
+ }
+ break;
+
+ case WM_PARENTNOTIFY:
+ {
+ UINT nNotifyMsg = LOWORD( wParam );
+ if ( (nNotifyMsg == WM_LBUTTONDOWN) ||
+ (nNotifyMsg == WM_RBUTTONDOWN) ||
+ (nNotifyMsg == WM_MBUTTONDOWN) )
+ {
+ ImplSalYieldMutexAcquireWithWait();
+ pSysObj = GetSalObjWindowPtr( hWnd );
+ if ( pSysObj && !pSysObj->IsMouseTransparent() )
+ pSysObj->CallCallback( SalObjEvent::ToTop );
+ ImplSalYieldMutexRelease();
+ }
+ }
+ break;
+
+ case WM_MOUSEACTIVATE:
+ {
+ ImplSalYieldMutexAcquireWithWait();
+ pSysObj = GetSalObjWindowPtr( hWnd );
+ if ( pSysObj && !pSysObj->IsMouseTransparent() )
+ {
+ bool const ret = PostMessageW( hWnd, SALOBJ_MSG_TOTOP, 0, 0 );
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ ImplSalYieldMutexRelease();
+ }
+ break;
+
+ case SALOBJ_MSG_TOTOP:
+ if ( ImplSalYieldMutexTryToAcquire() )
+ {
+ pSysObj = GetSalObjWindowPtr( hWnd );
+ pSysObj->CallCallback( SalObjEvent::ToTop );
+ ImplSalYieldMutexRelease();
+ rDef = FALSE;
+ }
+ else
+ {
+ bool const ret = PostMessageW( hWnd, SALOBJ_MSG_TOTOP, 0, 0 );
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ break;
+
+ case SALOBJ_MSG_POSTFOCUS:
+ if ( ImplSalYieldMutexTryToAcquire() )
+ {
+ pSysObj = GetSalObjWindowPtr( hWnd );
+ HWND hFocusWnd = ::GetFocus();
+ SalObjEvent nEvent;
+ if ( hFocusWnd && ImplIsSysWindowOrChild( hWnd, hFocusWnd ) )
+ nEvent = SalObjEvent::GetFocus;
+ else
+ nEvent = SalObjEvent::LoseFocus;
+ pSysObj->CallCallback( nEvent );
+ ImplSalYieldMutexRelease();
+ }
+ else
+ {
+ bool const ret = PostMessageW(hWnd, SALOBJ_MSG_POSTFOCUS, 0, 0);
+ SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
+ }
+ rDef = FALSE;
+ break;
+
+ case WM_SIZE:
+ {
+ HWND hWndChild = GetWindow( hWnd, GW_CHILD );
+ if ( hWndChild )
+ {
+ SetWindowPos( hWndChild,
+ nullptr, 0, 0, static_cast<int>(LOWORD( lParam )), static_cast<int>(HIWORD( lParam )),
+ SWP_NOZORDER | SWP_NOACTIVATE );
+ }
+ }
+ rDef = FALSE;
+ break;
+
+ case WM_CREATE:
+ {
+ // Save the window instance at the window handle.
+ // Can also be used for the A-Version, because the struct
+ // to access lpCreateParams is the same structure
+ CREATESTRUCTW* pStruct = reinterpret_cast<CREATESTRUCTW*>(lParam);
+ pSysObj = static_cast<WinSalObject*>(pStruct->lpCreateParams);
+ SetSalObjWindowPtr( hWnd, pSysObj );
+ // set HWND already here,
+ // as instance data might be used during CreateWindow() events
+ pSysObj->mhWnd = hWnd;
+ rDef = FALSE;
+ }
+ break;
+ }
+
+ return nRet;
+}
+
+static LRESULT CALLBACK SalSysObjWndProcW( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam )
+{
+ int bDef = TRUE;
+ LRESULT nRet = SalSysObjWndProc( hWnd, nMsg, wParam, lParam, bDef );
+ if ( bDef )
+ nRet = DefWindowProcW( hWnd, nMsg, wParam, lParam );
+ return nRet;
+}
+
+static LRESULT CALLBACK SalSysObjChildWndProc( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam, int& rDef )
+{
+ LRESULT nRet = 0;
+
+ switch( nMsg )
+ {
+ // clear background for plugins
+ case WM_ERASEBKGND:
+ {
+ WinSalObject* pSysObj = GetSalObjWindowPtr( ::GetParent( hWnd ) );
+
+ if( pSysObj && !pSysObj->IsEraseBackgroundEnabled() )
+ {
+ // do not erase background
+ nRet = 1;
+ rDef = FALSE;
+ }
+ }
+ break;
+
+ case WM_PAINT:
+ {
+ PAINTSTRUCT aPs;
+ BeginPaint( hWnd, &aPs );
+ EndPaint( hWnd, &aPs );
+ rDef = FALSE;
+ }
+ break;
+
+ case WM_MOUSEMOVE:
+ case WM_LBUTTONDOWN:
+ case WM_MBUTTONDOWN:
+ case WM_RBUTTONDOWN:
+ case WM_LBUTTONUP:
+ case WM_MBUTTONUP:
+ case WM_RBUTTONUP:
+ {
+ WinSalObject* pSysObj;
+ pSysObj = GetSalObjWindowPtr( ::GetParent( hWnd ) );
+
+ if( pSysObj && pSysObj->IsMouseTransparent() )
+ {
+ // forward mouse events to parent frame
+ HWND hWndParent = ::GetParent( pSysObj->mhWnd );
+
+ // transform coordinates
+ POINT pt;
+ pt.x = static_cast<tools::Long>(LOWORD( lParam ));
+ pt.y = static_cast<tools::Long>(HIWORD( lParam ));
+ MapWindowPoints( hWnd, hWndParent, &pt, 1 );
+ lParam = MAKELPARAM( static_cast<WORD>(pt.x), static_cast<WORD>(pt.y) );
+
+ nRet = SendMessageW( hWndParent, nMsg, wParam, lParam );
+ rDef = FALSE;
+ }
+ }
+ break;
+ }
+
+ return nRet;
+}
+
+static LRESULT CALLBACK SalSysObjChildWndProcW( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam )
+{
+ int bDef = TRUE;
+ LRESULT nRet = SalSysObjChildWndProc( hWnd, nMsg, wParam, lParam, bDef );
+ if ( bDef )
+ nRet = DefWindowProcW( hWnd, nMsg, wParam, lParam );
+ return nRet;
+}
+
+SalObject* ImplSalCreateObject( WinSalInstance* pInst, WinSalFrame* pParent )
+{
+ SalData* pSalData = GetSalData();
+
+ // install hook, if it is the first SalObject
+ if ( !pSalData->mpFirstObject )
+ {
+ pSalData->mhSalObjMsgHook = SetWindowsHookExW( WH_CALLWNDPROC,
+ SalSysMsgProc,
+ pSalData->mhInst,
+ pSalData->mnAppThreadId );
+ }
+
+ if ( !pSalData->mbObjClassInit )
+ {
+ WNDCLASSEXW aWndClassEx;
+ aWndClassEx.cbSize = sizeof( aWndClassEx );
+ aWndClassEx.style = 0;
+ aWndClassEx.lpfnWndProc = SalSysObjWndProcW;
+ aWndClassEx.cbClsExtra = 0;
+ aWndClassEx.cbWndExtra = SAL_OBJECT_WNDEXTRA;
+ aWndClassEx.hInstance = pSalData->mhInst;
+ aWndClassEx.hIcon = nullptr;
+ aWndClassEx.hIconSm = nullptr;
+ aWndClassEx.hCursor = LoadCursor( nullptr, IDC_ARROW );
+ aWndClassEx.hbrBackground = nullptr;
+ aWndClassEx.lpszMenuName = nullptr;
+ aWndClassEx.lpszClassName = SAL_OBJECT_CLASSNAMEW;
+ if ( RegisterClassExW( &aWndClassEx ) )
+ {
+ // Clean background first because of plugins.
+ aWndClassEx.cbWndExtra = 0;
+ aWndClassEx.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_WINDOW+1);
+ aWndClassEx.lpfnWndProc = SalSysObjChildWndProcW;
+ aWndClassEx.lpszClassName = SAL_OBJECT_CHILDCLASSNAMEW;
+ if ( RegisterClassExW( &aWndClassEx ) )
+ pSalData->mbObjClassInit = true;
+ }
+ }
+
+ if ( pSalData->mbObjClassInit )
+ {
+ WinSalObject* pObject = new WinSalObject;
+
+ // #135235# Clip siblings of this
+ // SystemChildWindow. Otherwise, DXCanvas (using a hidden
+ // SystemChildWindow) clobbers applets/plugins during
+ // animations .
+ HWND hWnd = CreateWindowExW( 0, SAL_OBJECT_CLASSNAMEW, L"",
+ WS_CHILD | WS_CLIPSIBLINGS, 0, 0, 0, 0,
+ pParent->mhWnd, nullptr,
+ pInst->mhInst, pObject );
+
+ HWND hWndChild = nullptr;
+ if ( hWnd )
+ {
+ // #135235# Explicitly stack SystemChildWindows in
+ // the order they're created - since there's no notion
+ // of zorder.
+ SetWindowPos(hWnd,HWND_TOP,0,0,0,0,
+ SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOREDRAW|SWP_NOSIZE);
+ hWndChild = CreateWindowExW( 0, SAL_OBJECT_CHILDCLASSNAMEW, L"",
+ WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE,
+ 0, 0, 0, 0,
+ hWnd, nullptr,
+ pInst->mhInst, nullptr );
+ }
+
+ if ( !hWndChild )
+ {
+ SAL_WARN("vcl", "CreateWindowExW failed: " << WindowsErrorString(GetLastError()));
+
+ delete pObject;
+ return nullptr;
+ }
+
+ if ( hWnd )
+ {
+ pObject->mhWnd = hWnd;
+ pObject->mhWndChild = hWndChild;
+ pObject->maSysData.hWnd = hWndChild;
+ return pObject;
+ }
+ }
+
+ return nullptr;
+}
+
+WinSalObject::WinSalObject()
+{
+ SalData* pSalData = GetSalData();
+
+ mhWnd = nullptr;
+ mhWndChild = nullptr;
+ mhLastFocusWnd = nullptr;
+ mpStdClipRgnData = nullptr;
+
+ // Insert object in objectlist
+ mpNextObject = pSalData->mpFirstObject;
+ pSalData->mpFirstObject = this;
+}
+
+WinSalObject::~WinSalObject()
+{
+ SalData* pSalData = GetSalData();
+
+ // remove frame from framelist
+ if ( this == pSalData->mpFirstObject )
+ {
+ pSalData->mpFirstObject = mpNextObject;
+
+ // remove hook, if it is the last SalObject
+ if ( !pSalData->mpFirstObject )
+ UnhookWindowsHookEx( pSalData->mhSalObjMsgHook );
+ }
+ else
+ {
+ WinSalObject* pTempObject = pSalData->mpFirstObject;
+ while ( pTempObject->mpNextObject != this )
+ pTempObject = pTempObject->mpNextObject;
+
+ pTempObject->mpNextObject = mpNextObject;
+ }
+
+ // destroy cache data
+ delete [] reinterpret_cast<BYTE*>(mpStdClipRgnData);
+
+ HWND hWndParent = ::GetParent( mhWnd );
+
+ if ( mhWndChild )
+ DestroyWindow( mhWndChild );
+ if ( mhWnd )
+ DestroyWindow( mhWnd );
+
+ // reset palette, if no external child window is left,
+ // as they might have overwritten our palette
+ if ( hWndParent &&
+ ::GetActiveWindow() == hWndParent &&
+ !GetWindow( hWndParent, GW_CHILD ) )
+ SendMessageW( hWndParent, SAL_MSG_FORCEPALETTE, 0, 0 );
+}
+
+void WinSalObject::ResetClipRegion()
+{
+ SetWindowRgn( mhWnd, nullptr, TRUE );
+}
+
+void WinSalObject::BeginSetClipRegion( sal_uInt32 nRectCount )
+{
+ sal_uLong nRectBufSize = sizeof(RECT)*nRectCount;
+ if ( nRectCount < SAL_CLIPRECT_COUNT )
+ {
+ if ( !mpStdClipRgnData )
+ mpStdClipRgnData = reinterpret_cast<RGNDATA*>(new BYTE[sizeof(RGNDATA)-1+(SAL_CLIPRECT_COUNT*sizeof(RECT))]);
+ mpClipRgnData = mpStdClipRgnData;
+ }
+ else
+ mpClipRgnData = reinterpret_cast<RGNDATA*>(new BYTE[sizeof(RGNDATA)-1+nRectBufSize]);
+ mpClipRgnData->rdh.dwSize = sizeof( RGNDATAHEADER );
+ mpClipRgnData->rdh.iType = RDH_RECTANGLES;
+ mpClipRgnData->rdh.nCount = nRectCount;
+ mpClipRgnData->rdh.nRgnSize = nRectBufSize;
+ SetRectEmpty( &(mpClipRgnData->rdh.rcBound) );
+ mpNextClipRect = reinterpret_cast<RECT*>(&(mpClipRgnData->Buffer));
+ mbFirstClipRect = true;
+}
+
+void WinSalObject::UnionClipRegion( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight )
+{
+ RECT* pRect = mpNextClipRect;
+ RECT* pBoundRect = &(mpClipRgnData->rdh.rcBound);
+ tools::Long nRight = nX + nWidth;
+ tools::Long nBottom = nY + nHeight;
+
+ if ( mbFirstClipRect )
+ {
+ pBoundRect->left = nX;
+ pBoundRect->top = nY;
+ pBoundRect->right = nRight;
+ pBoundRect->bottom = nBottom;
+ mbFirstClipRect = false;
+ }
+ else
+ {
+ if ( nX < pBoundRect->left )
+ pBoundRect->left = static_cast<int>(nX);
+
+ if ( nY < pBoundRect->top )
+ pBoundRect->top = static_cast<int>(nY);
+
+ if ( nRight > pBoundRect->right )
+ pBoundRect->right = static_cast<int>(nRight);
+
+ if ( nBottom > pBoundRect->bottom )
+ pBoundRect->bottom = static_cast<int>(nBottom);
+ }
+
+ pRect->left = static_cast<int>(nX);
+ pRect->top = static_cast<int>(nY);
+ pRect->right = static_cast<int>(nRight);
+ pRect->bottom = static_cast<int>(nBottom);
+ mpNextClipRect++;
+}
+
+void WinSalObject::EndSetClipRegion()
+{
+ HRGN hRegion;
+
+ // create a ClipRegion from the vcl::Region data
+ if ( mpClipRgnData->rdh.nCount == 1 )
+ {
+ RECT* pRect = &(mpClipRgnData->rdh.rcBound);
+ hRegion = CreateRectRgn( pRect->left, pRect->top,
+ pRect->right, pRect->bottom );
+ }
+ else
+ {
+ sal_uLong nSize = mpClipRgnData->rdh.nRgnSize+sizeof(RGNDATAHEADER);
+ hRegion = ExtCreateRegion( nullptr, nSize, mpClipRgnData );
+ if ( mpClipRgnData != mpStdClipRgnData )
+ delete [] reinterpret_cast<BYTE*>(mpClipRgnData);
+ }
+
+ SAL_WARN_IF( !hRegion, "vcl", "SalObject::EndSetClipRegion() - Can't create ClipRegion" );
+ SetWindowRgn( mhWnd, hRegion, TRUE );
+}
+
+void WinSalObject::SetPosSize( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight )
+{
+ sal_uLong nStyle = 0;
+ bool bVisible = (GetWindowStyle( mhWnd ) & WS_VISIBLE) != 0;
+ if ( bVisible )
+ {
+ ShowWindow( mhWnd, SW_HIDE );
+ nStyle |= SWP_SHOWWINDOW;
+ }
+ SetWindowPos( mhWnd, nullptr,
+ static_cast<int>(nX), static_cast<int>(nY), static_cast<int>(nWidth), static_cast<int>(nHeight),
+ SWP_NOZORDER | SWP_NOACTIVATE | nStyle );
+}
+
+void WinSalObject::Show( bool bVisible )
+{
+ if ( bVisible )
+ ShowWindow( mhWnd, SW_SHOWNORMAL );
+ else
+ ShowWindow( mhWnd, SW_HIDE );
+}
+
+void WinSalObject::Enable( bool bEnable )
+{
+ EnableWindow( mhWnd, bEnable );
+}
+
+void WinSalObject::GrabFocus()
+{
+ if ( mhLastFocusWnd &&
+ IsWindow( mhLastFocusWnd ) &&
+ ImplIsSysWindowOrChild( mhWndChild, mhLastFocusWnd ) )
+ ::SetFocus( mhLastFocusWnd );
+ else
+ ::SetFocus( mhWndChild );
+}
+
+const SystemEnvData* WinSalObject::GetSystemData() const
+{
+ return &maSysData;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */