agg/include/ctrl/agg_scale_ctrl.h

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2021-12-27 20:14:31 +01:00
//----------------------------------------------------------------------------
// 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 scale_ctrl_impl, scale_ctrl
//
//----------------------------------------------------------------------------
#ifndef AGG_SCALE_CTRL_INCLUDED
#define AGG_SCALE_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_ctrl.h"
namespace agg
{
//------------------------------------------------------------------------
class scale_ctrl_impl : public ctrl
{
enum move_e
{
move_nothing,
move_value1,
move_value2,
move_slider
};
public:
scale_ctrl_impl(double x1, double y1, double x2, double y2, bool flip_y=false);
void border_thickness(double t, double extra=0.0);
void resize(double x1, double y1, double x2, double y2);
double min_delta() const { return m_min_d; }
void min_delta(double d) { m_min_d = d; }
double value1() const { return m_value1; }
void value1(double value);
double value2() const { return m_value2; }
void value2(double value);
void move(double d);
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 soutce interface
unsigned num_paths() { return 5; };
void rewind(unsigned path_id);
unsigned vertex(double* x, double* y);
private:
void calc_box();
double m_border_thickness;
double m_border_extra;
double m_value1;
double m_value2;
double m_min_d;
double m_xs1;
double m_ys1;
double m_xs2;
double m_ys2;
double m_pdx;
double m_pdy;
move_e m_move_what;
double m_vx[32];
double m_vy[32];
ellipse m_ellipse;
unsigned m_idx;
unsigned m_vertex;
};
//------------------------------------------------------------------------
template<class ColorT> class scale_ctrl : public scale_ctrl_impl
{
public:
scale_ctrl(double x1, double y1, double x2, double y2, bool flip_y=false) :
scale_ctrl_impl(x1, y1, x2, y2, flip_y),
m_background_color(rgba(1.0, 0.9, 0.8)),
m_border_color(rgba(0.0, 0.0, 0.0)),
m_pointers_color(rgba(0.8, 0.0, 0.0, 0.8)),
m_slider_color(rgba(0.2, 0.1, 0.0, 0.6))
{
m_colors[0] = &m_background_color;
m_colors[1] = &m_border_color;
m_colors[2] = &m_pointers_color;
m_colors[3] = &m_pointers_color;
m_colors[4] = &m_slider_color;
}
void background_color(const ColorT& c) { m_background_color = c; }
void border_color(const ColorT& c) { m_border_color = c; }
void pointers_color(const ColorT& c) { m_pointers_color = c; }
void slider_color(const ColorT& c) { m_slider_color = c; }
const ColorT& color(unsigned i) const { return *m_colors[i]; }
private:
scale_ctrl(const scale_ctrl<ColorT>&);
const scale_ctrl<ColorT>& operator = (const scale_ctrl<ColorT>&);
ColorT m_background_color;
ColorT m_border_color;
ColorT m_pointers_color;
ColorT m_slider_color;
ColorT* m_colors[5];
};
}
#endif