haiku.git

/*
 * Copyright 2006-2007, Haiku.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *		Stephan Aßmus <superstippi@gmx.de>
 */
#ifndef TRANSFORM_GRADIENT_BOX_H
#define TRANSFORM_GRADIENT_BOX_H

#include "IconBuild.h"
#include "TransformBox.h"

#include <Referenceable.h>


class CanvasView;

_BEGIN_ICON_NAMESPACE
	class Gradient;
	class Shape;
_END_ICON_NAMESPACE

_USING_ICON_NAMESPACE


class TransformGradientBox : public TransformBox {
 public:
									TransformGradientBox(CanvasView* view,
														 Gradient* gradient,
														 Shape* parent);
	virtual							~TransformGradientBox();

	// Observer interface (Manipulator is an Observer)
	virtual	void					ObjectChanged(const Observable* object);

	// TransformBox interface
	virtual	void					Update(bool deep = true);

	virtual	void					TransformFromCanvas(BPoint& point) const;
	virtual	void					TransformToCanvas(BPoint& point) const;
	virtual	float					ZoomLevel() const;
	virtual	double					ViewSpaceRotation() const;

	virtual	TransformCommand*		MakeCommand(const char* actionName);

	// TransformGradientBox
			Command*				Perform();
			Command*				Cancel();
 private:
			CanvasView*				fCanvasView;

			Shape*					fShape;
			BReference<Gradient>	fGradient;
			int32					fCount;

			// saves the transformable object transformation states
			// prior to this transformation
			double					fOriginals[matrix_size];
};

#endif // TRANSFORM_GRADIENT_BOX_H