432e3162e6
Change-Id: Ib19175affd48610fc164a996d609b369256d4f72 Reviewed-on: https://gerrit.libreoffice.org/29865 Reviewed-by: Stephan Bergmann <sbergman@redhat.com> Tested-by: Stephan Bergmann <sbergman@redhat.com>
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_DIBPREVIEW_HXX
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#define INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_DIBPREVIEW_HXX
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#include "previewbase.hxx"
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#include <com/sun/star/uno/Sequence.hxx>
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#include <osl/mutex.hxx>
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#if defined _MSC_VER
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#pragma warning(push, 1)
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#endif
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#include <windows.h>
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#if defined _MSC_VER
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#pragma warning(pop)
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#endif
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// A very simple wrapper for a window that does
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// display DIBs.
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// Maybe it would be better and more extensible
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// to create another class that is responsible
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// for rendering a specific image format into
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// the area of the window, but for our purpose
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// it's enough to go the simple way - KISS.
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class CDIBPreview : public PreviewBase
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{
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public:
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// ctor
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CDIBPreview(HINSTANCE instance,HWND parent,bool bShowWindow = false);
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// dtor
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virtual ~CDIBPreview( ) override;
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// preview interface implementation
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virtual sal_Int32 SAL_CALL getTargetColorDepth()
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throw (css::uno::RuntimeException) override;
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virtual sal_Int32 SAL_CALL getAvailableWidth()
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throw (css::uno::RuntimeException) override;
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virtual sal_Int32 SAL_CALL getAvailableHeight()
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throw (css::uno::RuntimeException) override;
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virtual void SAL_CALL setImage(sal_Int16 aImageFormat, const css::uno::Any& aImage)
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throw (css::lang::IllegalArgumentException, css::uno::RuntimeException) override;
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virtual bool SAL_CALL setShowState(bool bShowState)
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throw (css::uno::RuntimeException) override;
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virtual bool SAL_CALL getShowState()
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throw (css::uno::RuntimeException) override;
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virtual HWND SAL_CALL getWindowHandle() const override;
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private:
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virtual void SAL_CALL onPaint( HWND hWnd, HDC hDC );
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ATOM SAL_CALL RegisterDibPreviewWindowClass( );
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void SAL_CALL UnregisterDibPreviewWindowClass( );
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static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
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private:
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HINSTANCE m_Instance;
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HWND m_Hwnd;
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css::uno::Sequence<sal_Int8> m_Image;
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osl::Mutex m_PaintLock;
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// the preview window class has to be registered only
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// once per process, so multiple instance of this class
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// share the registered window class
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static ATOM s_ClassAtom;
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static osl::Mutex s_Mutex;
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static sal_Int32 s_RegisterDibPreviewWndCount;
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// prevent copy and assignment
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private:
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CDIBPreview(const CDIBPreview&);
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CDIBPreview& operator=(const CDIBPreview&);
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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