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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: overlayobject.hxx,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SDR_OVERLAY_OVERLAYOBJECT_HXX
#define _SDR_OVERLAY_OVERLAYOBJECT_HXX
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/range/b2drange.hxx>
#include <tools/color.hxx>
#include <svx/sdr/animation/scheduler.hxx>
#include "svx/svxdllapi.h"
#include <vector>
//////////////////////////////////////////////////////////////////////////////
// predeclarations
class OutputDevice;
namespace sdr
{
namespace overlay
{
class OverlayManager;
} // end of namespace overlay
} // end of namespace sdr
namespace basegfx
{
class B2DPolygon;
class B2DPolyPolygon;
class B2DRange;
} // end of namespace basegfx
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace overlay
{
class SVX_DLLPUBLIC OverlayObject : public ::sdr::animation::Event
{
// Manager is allowed access to private Members, especially
// pNext and pPrevious are used form the manager to handle the
// OverlayObject.
friend class OverlayManager;
// pointer to OverlayManager, if object is added. Changed by
// OverlayManager, do not chnge Yourself.
OverlayManager* mpOverlayManager;
// Chaining of IAO's, used by OverlayManager. These will be
// used form the OverlayManager, so do not change them Yourself.
OverlayObject* mpNext;
OverlayObject* mpPrevious;
protected:
// region in logical coordinates
basegfx::B2DRange maBaseRange;
// base color of this OverlayObject
Color maBaseColor;
// bitfield
// Flag for visibility
unsigned mbIsVisible : 1;
// Flag for validity
unsigned mbIsChanged : 1;
// Flag to control hittability
unsigned mbIsHittable : 1;
// Flag to hold info if this objects supports animation. Default is
// sal_False. If sal_True, the Trigger() method should be overloaded
// to implement the animation effect and to re-initiate the event.
unsigned mbAllowsAnimation : 1;
// Draw geometry
virtual void drawGeometry(OutputDevice& rOutputDevice) = 0;
// Create the BaseRange. This method needs to calculate maBaseRange.
virtual void createBaseRange(OutputDevice& rOutputDevice) = 0;
// set changed flag. Call after change, since the old range is invalidated
// and then the new one is calculated and invalidated, too. This will only
// work after the change.
void objectChange();
// support method to draw striped geometries
void ImpDrawRangeStriped(OutputDevice& rOutputDevice, const basegfx::B2DRange& rRange);
void ImpDrawLineStriped(OutputDevice& rOutputDevice, double x1, double y1, double x2, double y2);
void ImpDrawLineStriped(OutputDevice& rOutputDevice, const basegfx::B2DPoint& rStart, const basegfx::B2DPoint& rEnd);
void ImpDrawPolygonStriped(OutputDevice& rOutputDevice, const basegfx::B2DPolygon& rPolygon);
public:
OverlayObject(Color aBaseColor);
virtual ~OverlayObject();
// get OverlayManager
OverlayManager* getOverlayManager() const { return mpOverlayManager; }
// Hittest with logical coordinates. Default tests against maBaseRange.
virtual sal_Bool isHit(const basegfx::B2DPoint& rPos, double fTol = 0.0) const;
// access to visibility state
sal_Bool isVisible() const { return mbIsVisible; }
void setVisible(sal_Bool bNew);
// read access to changed flag
sal_Bool isChanged() const { return mbIsChanged; }
// access to hittable flag
sal_Bool isHittable() const { return mbIsHittable; }
void setHittable(sal_Bool bNew);
// read access to baseRange. This may trigger createBaseRange() if
// object is changed.
const basegfx::B2DRange& getBaseRange() const;
// access to baseColor
Color getBaseColor() const { return maBaseColor; }
void setBaseColor(Color aNew);
// execute event from base class ::sdr::animation::Event. Default
// implementation does nothing and does not create a new event.
virtual void Trigger(sal_uInt32 nTime);
// acces to AllowsAnimation flag
sal_Bool allowsAnimation() const { return mbAllowsAnimation; }
// transform object coordinates.
virtual void transform(const basegfx::B2DHomMatrix& rMatrix) = 0;
// Zoom has changed. If the objects logical size
// depends on the MapMode of the used OutputDevice, use this call
// to invalidate the range in logical coordinates. Default is no
// change.
virtual void zoomHasChanged();
// stripe definition has changed. The OverlayManager does have
// support data to draw graphics in two colors striped. This
// method notifies the OverlayObject if that change takes place.
// Default implementation does nothing.
virtual void stripeDefinitionHasChanged();
};
// typedefs for a vector of OverlayObjects
typedef ::std::vector< OverlayObject* > OverlayObjectVector;
} // end of namespace overlay
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace overlay
{
class SVX_DLLPUBLIC OverlayObjectWithBasePosition : public OverlayObject
{
protected:
// base position in logical coordinates
basegfx::B2DPoint maBasePosition;
public:
OverlayObjectWithBasePosition(const basegfx::B2DPoint& rBasePos, Color aBaseColor);
virtual ~OverlayObjectWithBasePosition();
// access to basePosition
const basegfx::B2DPoint& getBasePosition() const { return maBasePosition; }
void setBasePosition(const basegfx::B2DPoint& rNew);
// transform object coordinates. Transforms maBasePosition
// and invalidates on change
virtual void transform(const basegfx::B2DHomMatrix& rMatrix);
};
} // end of namespace overlay
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
#endif //_SDR_OVERLAY_OVERLAYOBJECT_HXX
// eof
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