xref: /trunk/main/svx/inc/svx/sdrpaintwindow.hxx (revision a56bd57b)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



#ifndef _SDRPAINTWINDOW_HXX
#define _SDRPAINTWINDOW_HXX

#ifndef _VIRDEV_HXX //autogen
#include <vcl/virdev.hxx>
#endif
#include "svx/svxdllapi.h"

////////////////////////////////////////////////////////////////////////////////////////////////////
// predeclarations
class SdrPaintView;

namespace sdr
{
	namespace overlay
	{
		class OverlayManager;
	} // end of namespace overlay
} // end of namespace sdr

////////////////////////////////////////////////////////////////////////////////////////////////////

class SdrPreRenderDevice
{
	// The original OutputDevice
	OutputDevice&										mrOutputDevice;

	// The VirtualDevice for PreRendering
	VirtualDevice										maPreRenderDevice;

public:
	SdrPreRenderDevice(OutputDevice& rOriginal);
	~SdrPreRenderDevice();

	void PreparePreRenderDevice();
	void OutputPreRenderDevice(const Region& rExpandedRegion);

	OutputDevice& GetOriginalOutputDevice() const { return mrOutputDevice; }
	OutputDevice& GetPreRenderDevice() { return maPreRenderDevice; }
};

////////////////////////////////////////////////////////////////////////////////////////////////////

class SVX_DLLPUBLIC SdrPaintWindow
{
private:
	// the OutputDevice this window represents
	OutputDevice&										mrOutputDevice;

	// the SdrPaintView this window belongs to
	SdrPaintView&										mrPaintView;

	// the new OverlayManager for the new OverlayObjects. Test add here, will
	// replace the IAOManager as soon as it works.
	::sdr::overlay::OverlayManager*						mpOverlayManager;

	// The PreRenderDevice for PreRendering
	SdrPreRenderDevice*									mpPreRenderDevice;

	// The RedrawRegion used for rendering
	Region												maRedrawRegion;

	// bitfield
	// #i72889# flag if this is only a temporary target for repaint, default is false
	unsigned											mbTemporaryTarget : 1;

    /** Remember whether the mpOverlayManager supports buffering.  Using
        this flags expensive dynamic_casts on mpOverlayManager in order to
        detect this.
    */
    bool mbUseBuffer;

	// helpers
    void impCreateOverlayManager();

public:
	SdrPaintWindow(SdrPaintView& rNewPaintView, OutputDevice& rOut);
	~SdrPaintWindow();

	// data read accesses
	SdrPaintView& GetPaintView() const { return mrPaintView; }
	OutputDevice& GetOutputDevice() const { return mrOutputDevice; }

	// OVERLAYMANAGER
	::sdr::overlay::OverlayManager* GetOverlayManager() const;
	// #i73602# add flag if buffer shall be used
	void DrawOverlay(const Region& rRegion);
	void HideOverlay(const Region& rRegion);

	// calculate visible area and return
	Rectangle GetVisibleArea() const;

	// Is OutDev a printer?
	sal_Bool OutputToPrinter() const { return (OUTDEV_PRINTER == mrOutputDevice.GetOutDevType()); }

	// Is OutDev a window?
	sal_Bool OutputToWindow() const { return (OUTDEV_WINDOW == mrOutputDevice.GetOutDevType()); }

	// Is OutDev a VirtualDevice?
	sal_Bool OutputToVirtualDevice() const { return (OUTDEV_VIRDEV == mrOutputDevice.GetOutDevType()); }

	// Is OutDev a recording MetaFile?
	sal_Bool OutputToRecordingMetaFile() const;

	// prepare PreRendering (evtl.)
	void PreparePreRenderDevice();
	void DestroyPreRenderDevice();
	void OutputPreRenderDevice(const Region& rExpandedRegion);
	SdrPreRenderDevice* GetPreRenderDevice() const { return mpPreRenderDevice; }

	// RedrawRegion
	const Region& GetRedrawRegion() const;
	void SetRedrawRegion(const Region& rNew);

	// #i72889# read/write access to TempoparyTarget
	bool getTemporaryTarget() const { return (bool)mbTemporaryTarget; }
	void setTemporaryTarget(bool bNew) { if(bNew != (bool)mbTemporaryTarget) mbTemporaryTarget = bNew; }

	// #i72889# get target output device, take into account output buffering
	OutputDevice& GetTargetOutputDevice() { if(mpPreRenderDevice) return mpPreRenderDevice->GetPreRenderDevice(); else return mrOutputDevice; }
};

// typedefs for a list of SdrPaintWindows
typedef ::std::vector< SdrPaintWindow* > SdrPaintWindowVector;

////////////////////////////////////////////////////////////////////////////////////////////////////

#endif //_SDRPAINTWINDOW_HXX