/*
 * 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