Repo created

3party/agg/ctrl/agg_slider_ctrl.h

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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
+