Quelle  dx_devicehelper.hxx   Sprache: C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#pragma once

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

#include "dx_rendermodule.hxx"
#include "dx_bitmap.hxx"

#include <rendering/isurfaceproxymanager.hxx>
#include <vcl/vclptr.hxx>

class OutputDevice;
/* Definition of DeviceHelper class */

namespace dxcanvas
{
    class DeviceHelper
    {
    public:
        DeviceHelper();
        ~DeviceHelper();

        /// make noncopyable
        DeviceHelper(const DeviceHelper&) = delete;
        const DeviceHelper& operator=(const DeviceHelper&) = delete;

        /** Init the device helper

            @param hdc
            private or class dc of the output device. is only stored,
            not release

            @param rDevice
            Ref back to owning UNO device
         */
        void init( HDC hdc, OutputDevice* pOutputDev,
                   css::rendering::XGraphicDevice& rDevice );

        /// Dispose all internal references
        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 > getColorSpace() const;

        /** called when DumpScreenContent property is enabled on
            XGraphicDevice, and writes out bitmaps of current screen.
         */
        void dumpScreenContent() const {}

    protected:
        HDC getHDC() const { return mnHDC; }
        css::rendering::XGraphicDevice* getDevice() const { return mpDevice; }

    private:
        /** Phyical output device

            Deliberately not a refcounted reference, because of
            potential circular references for canvas. Needed to
            create bitmaps
         */
        css::rendering::XGraphicDevice*            mpDevice;
        HDC                                        mnHDC;
        VclPtr<OutputDevice>                       mpOutDev;
    };

    typedef ::rtl::Reference< css::rendering::XGraphicDevice > DeviceRef;
}

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