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