1 files changed, 153 insertions, 0 deletions
diff --git a/dggui/slider.h b/dggui/slider.h
new file mode 100644
index 0000000..90905fd
--- /dev/null
+++ b/dggui/slider.h
@@ -0,0 +1,153 @@
+/* -*- 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, Yellow, Purple, Grey };
+	// Changes the colour of the inner bar
+	void setColour(Colour colour);
+	void setEnabled(bool enabled);
+
+	Notifier<> clickNotifier;
+	Notifier<float> valueChangedNotifier; // (float value)
+
+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;
+
+	bool enabled = true;;
+
+private:
+	enum class State
+	{
+		up,
+		down
+	};
+
+	float current_value;
+	float maximum;
+	float minimum;
+
+	State state;
+
+	TexturedBox bar{getImageCache(), ":resources/slider.png",
+		0, 0, // atlas offset (x, y)
+	    7, 1, 7, // dx1, dx2, dx3
+	    7, 1, 7 // dy1, dy2, dy3
+	};
+	Texture button{
+	    getImageCache(), ":resources/slider.png", 15, 0, // atlas offset (x, y)
+	    15, 15                                 // width, height
+	};
+
+	TexturedBox inner_bar_green{getImageCache(), ":resources/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(), ":resources/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(), ":resources/slider.png",
+		30, 10, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_yellow{getImageCache(), ":resources/slider.png",
+		35, 0, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_purple{getImageCache(), ":resources/slider.png",
+		35, 5, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_grey{getImageCache(), ":resources/slider.png",
+		35, 10, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_turquoise{getImageCache(), ":resources/slider.png",
+		40, 0, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_orange{getImageCache(), ":resources/slider.png",
+		40, 5, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+	TexturedBox inner_bar_light_grey{getImageCache(), ":resources/slider.png",
+		40, 10, // atlas offset (x, y)
+		2, 1, 2, // dx1, dx2, dx3
+		2, 1, 2 // dy1, dy2, dy3
+	};
+
+	// This points to the inner_bar_* of the current color.
+	// It should never be a nullptr!
+	TexturedBox* inner_bar{&inner_bar_blue};
+	TexturedBox* active_inner_bar = inner_bar;
+
+	std::size_t bar_boundary{5};
+	std::size_t button_offset{7};
+
+	std::size_t getControlWidth() const;
+	void recomputeCurrentValue(float x);
+};
+
+} // GUI::