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| -rw-r--r-- | include/oox/helper/graphichelper.hxx | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/include/oox/helper/graphichelper.hxx b/include/oox/helper/graphichelper.hxx new file mode 100644 index 000000000..eab39beff --- /dev/null +++ b/include/oox/helper/graphichelper.hxx @@ -0,0 +1,161 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_OOX_HELPER_GRAPHICHELPER_HXX +#define INCLUDED_OOX_HELPER_GRAPHICHELPER_HXX + +#include <map> + +#include <com/sun/star/awt/DeviceInfo.hpp> +#include <com/sun/star/uno/Reference.hxx> +#include <oox/dllapi.h> +#include <oox/helper/binarystreambase.hxx> +#include <oox/helper/helper.hxx> +#include <oox/helper/storagebase.hxx> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <com/sun/star/graphic/XGraphicProvider2.hpp> +#include <com/sun/star/graphic/XGraphicMapper.hpp> +#include <vcl/vclptr.hxx> + +struct WmfExternal; +class OutputDevice; + +namespace com::sun::star { + namespace awt { struct Point; } + namespace awt { struct Size; } + namespace awt { class XUnitConversion; } + namespace io { class XInputStream; } + namespace frame { class XFrame; } + namespace graphic { class XGraphic; } + namespace graphic { class XGraphicObject; } + namespace graphic { class XGraphicProvider; } + namespace uno { class XComponentContext; } +} + +namespace oox { + + +/** Provides helper functions for colors, device measurement conversion, + graphics, and graphic objects handling. + */ +class OOX_DLLPUBLIC GraphicHelper +{ +public: + explicit GraphicHelper( + const css::uno::Reference< css::uno::XComponentContext >& rxContext, + const css::uno::Reference< css::frame::XFrame >& rxTargetFrame, + const StorageRef& rxStorage ); + virtual ~GraphicHelper(); + + // Avoid implicitly defined copy constructors/assignments for the DLLPUBLIC class (they may + // require forward-declared classes used internally to be defined in places using GraphicHelper) + GraphicHelper(const GraphicHelper&) = delete; + GraphicHelper(GraphicHelper&&) = delete; + GraphicHelper& operator=(const GraphicHelper&) = delete; + GraphicHelper& operator=(GraphicHelper&&) = delete; + + // System colors and predefined colors ------------------------------------ + + /** Returns a system color specified by the passed XML token identifier. */ + ::Color getSystemColor( sal_Int32 nToken, ::Color nDefaultRgb = API_RGB_TRANSPARENT ) const; + /** Derived classes may implement to resolve a scheme color from the passed XML token identifier. */ + virtual ::Color getSchemeColor( sal_Int32 nToken ) const; + /** Derived classes may implement to resolve a palette index to an RGB color. */ + virtual ::Color getPaletteColor( sal_Int32 nPaletteIdx ) const; + + virtual sal_Int32 getDefaultChartAreaFillStyle() const; + + /** Returns chartspace automatic default border style */ + static sal_Int32 getDefaultChartAreaLineStyle(); + + /** Returns chartspace automatic default border width in Emu */ + static sal_Int16 getDefaultChartAreaLineWidth(); + + // Device info and device dependent unit conversion ----------------------- + + /** Returns information about the output device. */ + const css::awt::DeviceInfo& getDeviceInfo() const { return maDeviceInfo;} + + /** Converts the passed value from horizontal screen pixels to 1/100 mm. */ + sal_Int32 convertScreenPixelXToHmm( double fPixelX ) const; + /** Converts the passed value from vertical screen pixels to 1/100 mm. */ + sal_Int32 convertScreenPixelYToHmm( double fPixelY ) const; + /** Converts the passed size from screen pixels to 1/100 mm. */ + css::awt::Size convertScreenPixelToHmm( const css::awt::Size& rPixel ) const; + + /** Converts the passed value from 1/100 mm to horizontal screen pixels. */ + double convertHmmToScreenPixelX( sal_Int32 nHmmX ) const; + /** Converts the passed value from 1/100 mm to vertical screen pixels. */ + double convertHmmToScreenPixelY( sal_Int32 nHmmY ) const; + /** Converts the passed point from 1/100 mm to screen pixels. */ + css::awt::Point convertHmmToScreenPixel( const css::awt::Point& rHmm ) const; + /** Converts the passed size from 1/100 mm to screen pixels. */ + css::awt::Size convertHmmToScreenPixel( const css::awt::Size& rHmm ) const; + + /** Converts the passed point from 1/100 mm to AppFont units. */ + css::awt::Point convertHmmToAppFont( const css::awt::Point& rHmm ) const; + /** Converts the passed size from 1/100 mm to AppFont units. */ + css::awt::Size convertHmmToAppFont( const css::awt::Size& rHmm ) const; + + + // Graphics and graphic objects ------------------------------------------ + + /** Imports a graphic from the passed input stream. */ + css::uno::Reference< css::graphic::XGraphic > + importGraphic( + const css::uno::Reference< css::io::XInputStream >& rxInStrm, + const WmfExternal* pExtHeader = nullptr ) const; + + /** Imports a graphic from the passed binary memory block. */ + css::uno::Reference< css::graphic::XGraphic > + importGraphic( const StreamDataSequence& rGraphicData ) const; + + /** Imports a graphic from the storage stream with the passed path and name. */ + css::uno::Reference< css::graphic::XGraphic > + importEmbeddedGraphic( + const OUString& rStreamName, + const WmfExternal* pExtHeader = nullptr ) const; + + /** calculates the original size of a graphic which is necessary to be able to calculate cropping values + @return The original Graphic size in 100thmm */ + css::awt::Size getOriginalSize( const css::uno::Reference< css::graphic::XGraphic >& rxGraphic ) const; + + void setGraphicMapper(css::uno::Reference<css::graphic::XGraphicMapper> const & rxGraphicMapper); + + void initializeGraphicMapperIfNeeded() const; +private: + + css::uno::Reference< css::uno::XComponentContext > mxContext; + css::uno::Reference< css::graphic::XGraphicProvider2 > mxGraphicProvider; + VclPtr<OutputDevice> mxDefaultOutputDevice; + css::awt::DeviceInfo maDeviceInfo; ///< Current output device info. + ::std::map< sal_Int32, ::Color > maSystemPalette; ///< Maps system colors (XML tokens) to RGB color values. + StorageRef mxStorage; ///< Storage containing embedded graphics. + double mfPixelPerHmmX; ///< Number of screen pixels per 1/100 mm in X direction. + double mfPixelPerHmmY; ///< Number of screen pixels per 1/100 mm in Y direction. + css::uno::Reference<css::graphic::XGraphicMapper> mxGraphicMapper; +}; + + +} // namespace oox + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |