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/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
*
* Permission to use, copy, modify, and/or distribute this software for any purpose with
* or without fee is hereby granted, provided that the above copyright notice and this
* permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef DGL_IMAGE_SLIDER_HPP_INCLUDED
#define DGL_IMAGE_SLIDER_HPP_INCLUDED
#include "Image.hpp"
#include "Widget.hpp"
START_NAMESPACE_DGL
// -----------------------------------------------------------------------
class ImageSlider : public Widget
{
public:
class Callback
{
public:
virtual ~Callback() {}
virtual void imageSliderDragStarted(ImageSlider* imageSlider) = 0;
virtual void imageSliderDragFinished(ImageSlider* imageSlider) = 0;
virtual void imageSliderValueChanged(ImageSlider* imageSlider, float value) = 0;
};
explicit ImageSlider(Window& parent, const Image& image, int id = 0) noexcept;
explicit ImageSlider(Widget* widget, const Image& image, int id = 0) noexcept;
explicit ImageSlider(const ImageSlider& imageSlider) noexcept;
ImageSlider& operator=(const ImageSlider& imageSlider) noexcept;
int getId() const noexcept;
void setId(int id) noexcept;
float getValue() const noexcept;
void setStartPos(const Point<int>& startPos) noexcept;
void setStartPos(int x, int y) noexcept;
void setEndPos(const Point<int>& endPos) noexcept;
void setEndPos(int x, int y) noexcept;
void setInverted(bool inverted) noexcept;
void setRange(float min, float max) noexcept;
void setStep(float step) noexcept;
void setValue(float value, bool sendCallback = false) noexcept;
void setCallback(Callback* callback) noexcept;
protected:
void onDisplay() override;
bool onMouse(const MouseEvent&) override;
bool onMotion(const MotionEvent&) override;
private:
Image fImage;
int fId;
float fMinimum;
float fMaximum;
float fStep;
float fValue;
float fValueTmp;
bool fDragging;
bool fInverted;
int fStartedX;
int fStartedY;
Callback* fCallback;
Point<int> fStartPos;
Point<int> fEndPos;
Rectangle<int> fSliderArea;
void _recheckArea() noexcept;
// these should not be used
void setAbsoluteX(int) const noexcept {}
void setAbsoluteY(int) const noexcept {}
void setAbsolutePos(int, int) const noexcept {}
void setAbsolutePos(const Point<int>&) const noexcept {}
void setNeedsFullViewport(bool) const noexcept {}
DISTRHO_LEAK_DETECTOR(ImageSlider)
};
// -----------------------------------------------------------------------
END_NAMESPACE_DGL
#endif // DGL_IMAGE_SLIDER_HPP_INCLUDED
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