cairo_devicehelper.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 .
 */

#ifndef INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_DEVICEHELPER_HXX
#define INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_DEVICEHELPER_HXX

#include <com/sun/star/rendering/XGraphicDevice.hpp>

#include <vcl/outdev.hxx>

#include "cairo_surfaceprovider.hxx"

/* Definition of DeviceHelper class */

namespace cairocanvas
{
    class DeviceHelper
    {
    public:
        DeviceHelper(const DeviceHelper&) = delete;
        const DeviceHelper& operator=(const DeviceHelper&) = delete;

        DeviceHelper();

        void init( SurfaceProvider& rSurfaceProvider,
                   OutputDevice&    rRefDevice );

        void disposing();

        // XWindowGraphicDevice
        css::geometry::RealSize2D getPhysicalResolution();
        css::geometry::RealSize2D getPhysicalSize();
        css::uno::Reference< css::rendering::XLinePolyPolygon2D > createCompatibleLinePolyPolygon(
            const css::uno::Reference< css::rendering::XGraphicDevice >&                               rDevice,
            const css::uno::Sequence< css::uno::Sequence< css::geometry::RealPoint2D > >& points );
        css::uno::Reference< css::rendering::XBezierPolyPolygon2D > createCompatibleBezierPolyPolygon(
            const css::uno::Reference< css::rendering::XGraphicDevice >&                                       rDevice,
            const css::uno::Sequence< css::uno::Sequence< css::geometry::RealBezierSegment2D > >& points );
        css::uno::Reference< css::rendering::XBitmap > createCompatibleBitmap(
            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
            const css::geometry::IntegerSize2D&                                        size );
        css::uno::Reference< css::rendering::XVolatileBitmap > createVolatileBitmap(
            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
            const css::geometry::IntegerSize2D&                                        size );
        css::uno::Reference< css::rendering::XBitmap > createCompatibleAlphaBitmap(
            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
            const css::geometry::IntegerSize2D&                                        size );
        css::uno::Reference< css::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
            const css::geometry::IntegerSize2D&                                        size );

        css::uno::Any isAccelerated() const;
        css::uno::Any getDeviceHandle() const;
        css::uno::Any getSurfaceHandle() const;
        css::uno::Reference<
            css::rendering::XColorSpace > const & getColorSpace() const;

        void dumpScreenContent() const;

        OutputDevice* getOutputDevice() const { return mpRefDevice; }
        const ::cairo::SurfaceSharedPtr& getSurface() const { return mpSurface; }
        ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, int aContent );
        ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData const & rData, const Size& rSize );

    protected:
        void implInit( SurfaceProvider& rSurfaceProvider,
                       OutputDevice&    rRefDevice );
        void setSize( const ::basegfx::B2ISize& rSize );

    private:
        SurfaceProvider*          mpSurfaceProvider;

        VclPtr<OutputDevice>      mpRefDevice;
        ::cairo::SurfaceSharedPtr mpSurface;
    };
}

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */