| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _DIBPREVIEW_HXX_ |
| #define _DIBPREVIEW_HXX_ |
| |
| //------------------------------------------------------------------------ |
| // includes |
| //------------------------------------------------------------------------ |
| |
| #include "previewbase.hxx" |
| #include <osl/mutex.hxx> |
| |
| #if defined _MSC_VER |
| #pragma warning(push, 1) |
| #endif |
| #include <windows.h> |
| #if defined _MSC_VER |
| #pragma warning(pop) |
| #endif |
| |
| //--------------------------------------------- |
| // A very simple wrapper for a window that does |
| // display DIBs. |
| // Maybe it would be better and more extensible |
| // to create another class that is responsible |
| // for rendering a specific image format into |
| // the area of the window, but for our purpose |
| // it's enough to go the simple way - KISS. |
| //--------------------------------------------- |
| |
| class CDIBPreview : public PreviewBase |
| { |
| public: |
| |
| // ctor |
| CDIBPreview(HINSTANCE instance,HWND parent,sal_Bool bShowWindow = sal_False); |
| |
| // dtor |
| virtual ~CDIBPreview( ); |
| |
| // preview interface implementation |
| |
| virtual sal_Int32 SAL_CALL getTargetColorDepth() |
| throw (::com::sun::star::uno::RuntimeException); |
| |
| virtual sal_Int32 SAL_CALL getAvailableWidth() |
| throw (::com::sun::star::uno::RuntimeException); |
| |
| virtual sal_Int32 SAL_CALL getAvailableHeight() |
| throw (::com::sun::star::uno::RuntimeException); |
| |
| virtual void SAL_CALL setImage(sal_Int16 aImageFormat, const ::com::sun::star::uno::Any& aImage) |
| throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException); |
| |
| virtual sal_Bool SAL_CALL setShowState(sal_Bool bShowState) |
| throw (::com::sun::star::uno::RuntimeException); |
| |
| virtual sal_Bool SAL_CALL getShowState() |
| throw (::com::sun::star::uno::RuntimeException); |
| |
| virtual HWND SAL_CALL getWindowHandle() const; |
| |
| private: |
| virtual void SAL_CALL onPaint( HWND hWnd, HDC hDC ); |
| |
| ATOM SAL_CALL RegisterDibPreviewWindowClass( ); |
| void SAL_CALL UnregisterDibPreviewWindowClass( ); |
| |
| static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); |
| |
| private: |
| HINSTANCE m_Instance; |
| HWND m_Hwnd; |
| com::sun::star::uno::Sequence<sal_Int8> m_Image; |
| osl::Mutex m_PaintLock; |
| |
| // the preview window class has to be registered only |
| // once per process, so multiple instance of this class |
| // share the registered window class |
| static ATOM s_ClassAtom; |
| static osl::Mutex s_Mutex; |
| static sal_Int32 s_RegisterDibPreviewWndCount; |
| |
| // prevent copy and assignment |
| private: |
| CDIBPreview(const CDIBPreview&); |
| CDIBPreview& operator=(const CDIBPreview&); |
| }; |
| |
| |
| #endif |