FS#79 Added the actual files for the ui::Scrollbar class.

1 files changed, 121 insertions, 0 deletions

diff --git a/src/ui/scrollbar.h b/src/ui/scrollbar.h
new file mode 100644
index 0000000..0689969
--- /dev/null
+++ b/src/ui/scrollbar.h
@@ -0,0 +1,121 @@
+/*
+   ui/scrollbar.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_UI_SCROLLBAR_H__
+#define __INCLUDED_UI_SCROLLBAR_H__
+
+#include <string>
+#include "ui/button.h"
+#include "ui/widget.h"
+
+namespace ui
+{
+
+/**
+ * @brief a scrollbar widget
+ */
+class ScrollBar : public Widget
+{
+public:
+	ScrollBar(Widget *parent, const float minimum = 0.0f, const float maximum = 1.0f);
+	
+	~ScrollBar();
+
+	/**
+	 * @brief the current slider value
+	 */
+	inline const float value() const {
+		return scrollbar_value;
+	}
+	
+	/**
+	 * @brief the minimum value
+	 */
+	inline const float minimum() const {
+		return scrollbar_minimum;
+	}
+	
+	/**
+	 * @brief the maximum value
+	 */
+	inline const float maximum() const {
+		return scrollbar_maximum;
+	}
+		
+	/**
+	 * @brief print widget description to console
+	 */
+	virtual void print(const size_t indent) const;
+	
+	/**
+	 * @brief set the current slider value
+	 * @see value
+	 */
+	void set_value(const float value);
+	
+	/**
+	 * @brief set the minimum slider value
+	 * @see minimum
+	 */
+	void set_minimum(const float minimum);
+	
+	/**
+	 * @brief set the maximum slider value
+	 * @see maximum
+	 */
+	void set_maximum(const float maximum);
+
+	/**
+	 * @brief set the minimum and maximum slider values
+	 * @see minimum
+	 * @see maximum
+	 */
+	void set_range(const float minimum, const float maximum);
+
+	/// show the widget
+	virtual void show();
+
+protected:
+	
+	/// resize event handler
+	virtual void resize();
+	
+	/// draw event handler
+	virtual void draw();
+	
+	/// emit event handler
+	virtual bool on_emit(Widget *sender, const Event event, void *data=0);
+	
+	/// keypress event handler
+	virtual bool on_keypress(const int key, const unsigned int modifier);
+	
+	/// keyrelease event handler
+	virtual bool on_keyrelease(const int key, const unsigned int modifier);
+	
+	virtual void on_mouseover(const math::Vector2f &cursor);
+	
+	/// mouse movement handler
+	virtual void on_mousemove(const math::Vector2f &cursor);
+	
+private:
+	/// validate slider value
+	void validate();
+	
+	float			scrollbar_minimum;
+	float			scrollbar_maximum;
+	float			scrollbar_value;
+	bool			scrollbar_dragging;
+	
+	Button			*scrollbar_minbutton;
+	Button			*scrollbar_decbutton;
+	Button			*scrollbar_incbutton;
+	Button			*scrollbar_maxbutton;
+};
+
+}
+
+#endif // __INCLUDED_UI_SCROLLBAR_H__
+