libreoffice/sdext/source/presenter/PresenterCanvasHelper.hxx

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 *
 * 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:
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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 */

#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERCANVASHELPER_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERCANVASHELPER_HXX

#include "PresenterTheme.hxx"
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/rendering/TextDirection.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XCanvasFont.hpp>
#include <com/sun/star/rendering/XPolyPolygon2D.hpp>
#include <rtl/ref.hxx>
#include <boost/noncopyable.hpp>

namespace sdext { namespace presenter {

/** Collection of functions to ease the life of a canvas user.
*/
class PresenterCanvasHelper
    : ::boost::noncopyable
{
public:
    PresenterCanvasHelper();
    ~PresenterCanvasHelper();

    void Paint (
        const SharedBitmapDescriptor& rpBitmap,
        const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
        const css::awt::Rectangle& rRepaintBox,
        const css::awt::Rectangle& rBackgroundBoundingBox,
        const css::awt::Rectangle& rContentBoundingBox) const;

    static void PaintRectangle (
        const SharedBitmapDescriptor& rpBitmap,
        const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
        const css::awt::Rectangle& rRepaintBox,
        const css::awt::Rectangle& rBackgroundBoundingBox,
        const css::awt::Rectangle& rContentBoundingBox,
        const css::rendering::ViewState& rDefaultViewState,
        const css::rendering::RenderState& rDefaultRenderState);

    static void SetDeviceColor(
        css::rendering::RenderState& rRenderState,
        const css::util::Color aColor);

    static css::geometry::RealRectangle2D GetTextBoundingBox (
        const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
        const OUString& rsText,
        const sal_Int8 = css::rendering::TextDirection::WEAK_LEFT_TO_RIGHT);

    static css::geometry::RealSize2D GetTextSize (
        const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
        const OUString& rsText,
        const sal_Int8 = css::rendering::TextDirection::WEAK_LEFT_TO_RIGHT);

private:
    const css::rendering::ViewState maDefaultViewState;
    const css::rendering::RenderState maDefaultRenderState;

    static void PaintTiledBitmap (
        const css::uno::Reference<css::rendering::XBitmap>& rxTexture,
        const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
        const css::awt::Rectangle& rRepaintBox,
        const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
        const css::awt::Rectangle& rHole,
        const css::rendering::ViewState& rDefaultViewState,
        const css::rendering::RenderState& rDefaultRenderState);

    static void PaintBitmap (
        const css::uno::Reference<css::rendering::XBitmap>& rxBitmap,
        const css::awt::Point& rLocation,
        const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
        const css::awt::Rectangle& rRepaintBox,
        const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
        const css::rendering::ViewState& rDefaultViewState,
        const css::rendering::RenderState& rDefaultRenderState);

    static void PaintColor (
        const css::util::Color nColor,
        const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
        const css::awt::Rectangle& rRepaintBox,
        const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
        const css::rendering::ViewState& rDefaultViewState,
        const css::rendering::RenderState& rDefaultRenderState);
};

} }

#endif

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