GraphicObject.hxx

Go to the documentation of this file.

/* -*- 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 .
 */
 
#pragma once
 
#include <memory>
#include <string_view>
#include <vcl/graph.hxx>
#include <vcl/dllapi.h>
#include <o3tl/typed_flags_set.hxx>
 
#include <vcl/GraphicAttributes.hxx>
 
namespace com::sun::star::graphic { class XGraphic; }
 
// Adjustment defines
enum class GraphicAdjustmentFlags
{
    NONE                 = 0x00,
    DRAWMODE             = 0x01,
    COLORS               = 0x02,
    MIRROR               = 0x04,
    ROTATE               = 0x08,
    TRANSPARENCY         = 0x10,
    ALL                  = 0x1f,
};
namespace o3tl
{
    template<> struct typed_flags<GraphicAdjustmentFlags> : is_typed_flags<GraphicAdjustmentFlags, 0x1f> {};
}
 
class VirtualDevice;
struct GrfSimpleCacheObj;
struct ImplTileInfo;
 
class VCL_DLLPUBLIC GraphicObject
{
    friend class SdrGrafObj;
 
private:
    Graphic                 maGraphic;
    GraphicAttr             maAttr;
    OUString                maUserData;
    std::unique_ptr<GrfSimpleCacheObj> mxSimpleCache;
 
    bool                    VCL_DLLPRIVATE ImplGetCropParams(
                                const OutputDevice& rOut,
                                Point& rPt,
                                Size& rSz,
                                const GraphicAttr* pAttr,
                                tools::PolyPolygon& rClipPolyPoly,
                                bool& bRectClipRegion
                            ) const;
 
    bool VCL_DLLPRIVATE     ImplRenderTempTile(
                                VirtualDevice& rVDev,
                                int nNumTilesX,
                                int nNumTilesY,
                                const Size& rTileSizePixel,
                                const GraphicAttr* pAttr
                            );
 
    bool VCL_DLLPRIVATE     ImplRenderTileRecursive(
                                VirtualDevice& rVDev,
                                int nExponent,
                                int nMSBFactor,
                                int nNumOrigTilesX,
                                int nNumOrigTilesY,
                                int nRemainderTilesX,
                                int nRemainderTilesY,
                                const Size& rTileSizePixel,
                                const GraphicAttr* pAttr,
                                ImplTileInfo& rTileInfo
                            );
 
    bool VCL_DLLPRIVATE     ImplDrawTiled(
                                OutputDevice& rOut,
                                const tools::Rectangle& rArea,
                                const Size& rSizePixel,
                                const Size& rOffset,
                                const GraphicAttr* pAttr,
                                int nTileCacheSize1D
                            );
 
    bool VCL_DLLPRIVATE     ImplDrawTiled(
                                OutputDevice& rOut,
                                const Point& rPos,
                                int nNumTilesX,
                                int nNumTilesY,
                                const Size& rTileSize,
                                const GraphicAttr* pAttr
                            ) const;
 
    void VCL_DLLPRIVATE     ImplTransformBitmap(
                                BitmapEx&           rBmpEx,
                                const GraphicAttr&  rAttr,
                                const Size&         rCropLeftTop,
                                const Size&         rCropRightBottom,
                                const tools::Rectangle&    rCropRect,
                                const Size&         rDstSize,
                                bool                bEnlarge
                            ) const;
 
public:
                            GraphicObject();
                            GraphicObject( Graphic aGraphic );
                            GraphicObject( const GraphicObject& rCacheObj );
                            ~GraphicObject();
 
    GraphicObject&          operator=( const GraphicObject& rCacheObj );
    bool                    operator==( const GraphicObject& rCacheObj ) const;
    bool                    operator!=( const GraphicObject& rCacheObj ) const { return !( *this == rCacheObj ); }
 
    const Graphic&          GetGraphic() const;
    void                    SetGraphic( const Graphic& rGraphic);
 
    Graphic                 GetTransformedGraphic(
                                const Size& rDestSize,
                                const MapMode& rDestMap,
                                const GraphicAttr& rAttr
                            ) const;
    Graphic                 GetTransformedGraphic( const GraphicAttr* pAttr ) const; // TODO: Change to Impl
 
    void                    SetAttr( const GraphicAttr& rAttr );
    const GraphicAttr&      GetAttr() const { return maAttr; }
 
    bool                    HasUserData() const { return !maUserData.isEmpty(); }
    void                    SetUserData();
    void                    SetUserData( const OUString& rUserData );
    const OUString&         GetUserData() const { return maUserData; }
 
    OString                 GetUniqueID() const;
 
    GraphicType             GetType() const;
    Size                    GetPrefSize() const;
    MapMode                 GetPrefMapMode() const;
    bool                    IsTransparent() const;
    bool                    IsAnimated() const;
    bool                    IsEPS() const;
 
    bool                    Draw(OutputDevice& rOut,
                                 const Point& rPt,
                                 const Size& rSz,
                                 const GraphicAttr* pAttr = nullptr) const;
 
    void                    DrawTiled(
                                OutputDevice& rOut,
                                const tools::Rectangle& rArea,
                                const Size& rSize,
                                const Size& rOffset,
                                int nTileCacheSize1D=128
                            );
 
    bool                    StartAnimation(
                                OutputDevice& rOut,
                                const Point& rPt,
                                const Size& rSz,
                                tools::Long nExtraData = 0,
                                OutputDevice* pFirstFrameOutDev = nullptr
                            );
 
    void                    StopAnimation( const OutputDevice* pOut = nullptr, tools::Long nExtraData = 0 );
 
    static bool isGraphicObjectUniqueIdURL(std::u16string_view rURL);
 
    // create CropScaling information
    // fWidth, fHeight: object size
    // f*Crop: crop values relative to original bitmap size
    basegfx::B2DVector calculateCropScaling(
        double fWidth,
        double fHeight,
        double fLeftCrop,
        double fTopCrop,
        double fRightCrop,
        double fBottomCrop) const;
};
 
namespace vcl::graphic
{
 
// Will search an object ( e.g. a control ) for any 'ImageURL' or 'Graphic'
// properties and return graphics from the properties in a vector. ImageURL
// will be loaded from the URL.
//
// Note: this implementation will cater for XNameContainer objects and deep inspect any containers
// if they exist
 
VCL_DLLPUBLIC void SearchForGraphics(css::uno::Reference<css::uno::XInterface> const & rxInterface,
                                     std::vector<css::uno::Reference<css::graphic::XGraphic>> & raGraphicList);
 
 
} // end namespace vcl::graphic
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */