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//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.4
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
//
// classes slider_ctrl_impl, slider_ctrl
//
//----------------------------------------------------------------------------
#ifndef AGG_SLIDER_CTRL_INCLUDED
#define AGG_SLIDER_CTRL_INCLUDED
#include "agg_basics.h"
#include "agg_math.h"
#include "agg_ellipse.h"
#include "agg_trans_affine.h"
#include "agg_color_rgba.h"
#include "agg_gsv_text.h"
#include "agg_conv_stroke.h"
#include "agg_path_storage.h"
#include "agg_ctrl.h"
namespace agg
{
//--------------------------------------------------------slider_ctrl_impl
class slider_ctrl_impl : public ctrl
{
public:
slider_ctrl_impl(double x1, double y1, double x2, double y2, bool flip_y=false);
void border_width(double t, double extra=0.0);
void range(double min, double max) { m_min = min; m_max = max; }
void num_steps(unsigned num) { m_num_steps = num; }
void label(const char* fmt);
void text_thickness(double t) { m_text_thickness = t; }
bool descending() const { return m_descending; }
void descending(bool v) { m_descending = v; }
double value() const { return m_value * (m_max - m_min) + m_min; }
void value(double value);
virtual bool in_rect(double x, double y) const;
virtual bool on_mouse_button_down(double x, double y);
virtual bool on_mouse_button_up(double x, double y);
virtual bool on_mouse_move(double x, double y, bool button_flag);
virtual bool on_arrow_keys(bool left, bool right, bool down, bool up);
// Vertex source interface
unsigned num_paths() { return 6; };
void rewind(unsigned path_id);
unsigned vertex(double* x, double* y);
private:
void calc_box();
bool normalize_value(bool preview_value_flag);
double m_border_width;
double m_border_extra;
double m_text_thickness;
double m_value;
double m_preview_value;
double m_min;
double m_max;
unsigned m_num_steps;
bool m_descending;
char m_label[64];
double m_xs1;
double m_ys1;
double m_xs2;
double m_ys2;
double m_pdx;
bool m_mouse_move;
double m_vx[32];
double m_vy[32];
ellipse m_ellipse;
unsigned m_idx;
unsigned m_vertex;
gsv_text m_text;
conv_stroke<gsv_text> m_text_poly;
path_storage m_storage;
};
//----------------------------------------------------------slider_ctrl
template<class ColorT> class slider_ctrl : public slider_ctrl_impl
{
public:
slider_ctrl(double x1, double y1, double x2, double y2, bool flip_y=false) :
slider_ctrl_impl(x1, y1, x2, y2, flip_y),
m_background_color(rgba(1.0, 0.9, 0.8)),
m_triangle_color(rgba(0.7, 0.6, 0.6)),
m_text_color(rgba(0.0, 0.0, 0.0)),
m_pointer_preview_color(rgba(0.6, 0.4, 0.4, 0.4)),
m_pointer_color(rgba(0.8, 0.0, 0.0, 0.6))
{
m_colors[0] = &m_background_color;
m_colors[1] = &m_triangle_color;
m_colors[2] = &m_text_color;
m_colors[3] = &m_pointer_preview_color;
m_colors[4] = &m_pointer_color;
m_colors[5] = &m_text_color;
}
void background_color(const ColorT& c) { m_background_color = c; }
void pointer_color(const ColorT& c) { m_pointer_color = c; }
const ColorT& color(unsigned i) const { return *m_colors[i]; }
private:
slider_ctrl(const slider_ctrl<ColorT>&);
const slider_ctrl<ColorT>& operator = (const slider_ctrl<ColorT>&);
ColorT m_background_color;
ColorT m_triangle_color;
ColorT m_text_color;
ColorT m_pointer_preview_color;
ColorT m_pointer_color;
ColorT* m_colors[6];
};
}
#endif
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