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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* slider.h
*
* Sat Nov 26 18:10:22 CET 2011
* Copyright 2011 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include "texture.h"
#include "texturedbox.h"
#include "widget.h"
namespace GUI
{
class Slider
: public Widget
{
public:
Slider(Widget* parent);
virtual ~Slider() = default;
// From Widget:
bool catchMouse() override
{
return true;
}
bool isFocusable() override
{
return true;
}
void setValue(float new_value);
float value() const;
enum class Colour { Green, Red, Blue };
// Changes the colour of the inner bar
void setColour(Colour colour);
Notifier<> clickNotifier;
protected:
virtual void repaintEvent(RepaintEvent* repaintEvent) override;
virtual void buttonEvent(ButtonEvent* buttonEvent) override;
virtual void mouseMoveEvent(MouseMoveEvent* mouseMoveEvent) override;
virtual void scrollEvent(ScrollEvent* scrollEvent) override;
private:
enum class State
{
up,
down
};
float current_value;
float maximum;
float minimum;
State state;
TexturedBox bar{getImageCache(), ":slider.png",
0, 0, // atlas offset (x, y)
7, 1, 7, // dx1, dx2, dx3
7, 1, 7 // dy1, dy2, dy3
};
TexturedBox inner_bar_green{getImageCache(), ":slider.png",
30, 0, // atlas offset (x, y)
2, 1, 2, // dx1, dx2, dx3
2, 1, 2 // dy1, dy2, dy3
};
TexturedBox inner_bar_red{getImageCache(), ":slider.png",
30, 5, // atlas offset (x, y)
2, 1, 2, // dx1, dx2, dx3
2, 1, 2 // dy1, dy2, dy3
};
TexturedBox inner_bar_blue{getImageCache(), ":slider.png",
30, 10, // atlas offset (x, y)
2, 1, 2, // dx1, dx2, dx3
2, 1, 2 // dy1, dy2, dy3
};
Texture button{
getImageCache(), ":slider.png", 15, 0, // atlas offset (x, y)
15, 15 // width, height
};
// This points to the inner_bar_* of the current color.
// It should never be a nullptr!
TexturedBox* inner_bar{&inner_bar_blue};
std::size_t bar_boundary{5};
std::size_t button_offset{7};
std::size_t getControlWidth() const;
void recomputeCurrentValue(float x);
};
} // GUI::
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