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/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
* Copyright (C) 2014 Damien Zammit <damien@zamaudio.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_TOGGLE_HPP_INCLUDED
#define DGL_IMAGE_TOGGLE_HPP_INCLUDED
#include "Image.hpp"
#include "Widget.hpp"
START_NAMESPACE_DGL
// -----------------------------------------------------------------------
class ImageToggle : public Widget
{
public:
class Callback
{
public:
virtual ~Callback() {}
virtual void imageToggleClicked(ImageToggle* imageToggle, int button) = 0;
};
ImageToggle(Window& parent, const Image& imageNormal, const Image& imageDown, int id = 0)
: Widget(parent),
fImageNormal(imageNormal),
fImageDown(imageDown),
fCurImage(&fImageNormal),
fId(id),
fCallback(nullptr)
{
DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
setSize(fImageNormal.getSize());
}
ImageToggle(Widget* widget, const Image& imageNormal, const Image& imageDown, int id = 0)
: Widget(widget->getParentWindow()),
fImageNormal(imageNormal),
fImageDown(imageDown),
fCurImage(&fImageNormal),
fId(id),
fCallback(nullptr)
{
DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
setSize(fImageNormal.getSize());
}
ImageToggle(const ImageToggle& imageToggle)
: Widget(imageToggle.getParentWindow()),
fImageNormal(imageToggle.fImageNormal),
fImageDown(imageToggle.fImageDown),
fCurImage(&fImageNormal),
fId(imageToggle.fId),
fCallback(imageToggle.fCallback)
{
DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
setSize(fImageNormal.getSize());
}
int getId() const noexcept
{
return fId;
}
void setId(int id) noexcept
{
fId = id;
}
float getValue() const noexcept
{
return (fCurImage == &fImageNormal) ? 0.0f : 1.0f;
}
void setValue(float value) noexcept
{
if (value == 1.0f)
fCurImage = &fImageDown;
else if (value == 0.0f)
fCurImage = &fImageNormal;
repaint();
}
void setCallback(Callback* callback) noexcept
{
fCallback = callback;
}
protected:
void onDisplay() override
{
fCurImage->draw();
}
bool onMouse(const MouseEvent& ev) override
{
if (! ev.press)
return false;
if (! contains(ev.pos))
return false;
if (fCurImage != &fImageDown)
fCurImage = &fImageDown;
else if (fCurImage != &fImageNormal)
fCurImage = &fImageNormal;
repaint();
if (fCallback != nullptr)
fCallback->imageToggleClicked(this, ev.button);
return true;
}
private:
Image fImageNormal;
Image fImageDown;
Image* fCurImage;
int fId;
Callback* fCallback;
DISTRHO_LEAK_DETECTOR(ImageToggle)
};
// -----------------------------------------------------------------------
END_NAMESPACE_DGL
#endif // DGL_IMAGE_TOGGLE_HPP_INCLUDED
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