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/*
$Id: scrollbar_generic.h,v 1.22 2002/01/16 19:23:01 sphair Exp $
ClanGUI, copyrights by various people. Have a look in the CREDITS file.
This sourcecode is distributed using the Library GNU Public Licence,
version 2 or (at your option) any later version. Please read LICENSE
for details.
*/
#ifndef header_scrollbar_generic
#define header_scrollbar_generic
#include "API/Core/System/timer.h"
#include "API/Core/Math/rect.h"
#include "API/GUI/layout_manager.h"
#include "API/Display/Input/key.h"
#include "API/signals.h"
class CL_ScrollBar;
class CL_Button;
class CL_InputDevice;
class CL_Component;
class CL_ComponentOptions;
class CL_StyleManager;
class CL_ScrollBar_Generic
{
// Construction:
public:
CL_ScrollBar_Generic(
CL_ScrollBar *self,
int min,
int max,
int value,
bool orientation,
bool tracking);
~CL_ScrollBar_Generic();
// Attributes:
public:
int get_range() const;
CL_Component *client_area;
int min_value;
int max_value;
int cur_value;
bool tracking;
bool vertical;
bool fixed_length;
bool dragging;
CL_Rect rect_slider;
int min_slider_length;
int fixed_slider_length;
// Operations:
public:
void set_vertical(bool enable);
void set_range(int min_value, int max_value);
void set_min_value(int value);
void set_max_value(int value);
void set_value(int value, bool using_slider = false);
// Signals:
public:
CL_Signal_v1<int> sig_value_changed;
CL_Signal_v0 sig_slider_pressed;
CL_Signal_v1<int> sig_slider_moved;
CL_Signal_v0 sig_slider_released;
// Slots:
private:
CL_Slot slot_set_options;
CL_Slot slot_timer;
CL_Slot slot_keydown, slot_keyup, slot_mousemove;
CL_Slot slot_button_decrease, slot_button_increase;
CL_Slot slot_child_add, slot_child_remove;
CL_Slot slot_resize;
// Callbacks:
private:
void on_set_options(const CL_ComponentOptions &options);
void on_child_add(CL_Component *child);
void on_child_remove(CL_Component *child);
void on_key_down(CL_Component *comp, CL_InputDevice *device, const CL_Key &key);
void on_key_up(CL_Component *comp, CL_InputDevice *device, const CL_Key &key);
void on_resize(int old_width, int old_height);
void on_mouse_move(CL_Component *comp, int x, int y);
void on_timer_scroll();
// Implementation:
private:
void calculate_slider();
CL_LayoutManager layout;
CL_ScrollBar *scrollbar;
bool mouse_captured;
int capture_last_offset;
CL_Timer timer_scroll;
int scroll_delta;
bool initialized;
};
#endif
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