Repo created

3party/agg/ctrl/agg_scale_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 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
+