guicast/bcpot.h

   1 #ifndef BCPOT_H
   2 #define BCPOT_H
   3
   4 #include "bcpixmap.h"
   5 #include "vframe.inc"
   6 #include "bcsubwindow.h"
   7
   8 #define POT_UP 0
   9 #define POT_HIGH 1
  10 #define POT_DN 2
  11 #define POT_STATES 3
  12
  13 class BC_FPot;
  14 class BC_IPot;
  15 class BC_QPot;
  16 class BC_PercentagePot;
  17
  18 class BC_Pot : public BC_SubWindow
  19 {
  20 public:
  21         BC_Pot(int x, int y, VFrame **data);
  22         virtual ~BC_Pot();
  23
  24         friend class BC_FPot;
  25         friend class BC_IPot;
  26         friend class BC_QPot;
  27         friend class BC_PercentagePot;
  28
  29
  30         static int calculate_h();
  31         int initialize();
  32         virtual float get_percentage() { return 0; };
  33         virtual int percentage_to_value(float percentage) { return 0; };
  34         virtual int handle_event() { return 0; };
  35         virtual char* get_caption() { return ""; };
  36         virtual int increase_value() { return 0; };
  37         virtual int decrease_value() { return 0; };
  38         void set_use_caption(int value);
  39
  40         int reposition_window(int x, int y);
  41         int repeat_event(int64_t repeat_id);
  42         int cursor_enter_event();
  43         int cursor_leave_event();
  44         int button_press_event();
  45         virtual int button_release_event();
  46         int cursor_motion_event();
  47         int keypress_event();
  48
  49 private:
  50         int set_data(VFrame **data);
  51         int draw();
  52         float percentage_to_angle(float percentage);
  53         float angle_to_percentage(float angle);
  54         int angle_to_coords(int &x1, int &y1, int &x2, int &y2, float angle);
  55         float coords_to_angle(int x2, int y2);
  56         void show_value_tooltip();
  57
  58         VFrame **data;
  59         BC_Pixmap *images[POT_STATES];
  60         char caption[BCTEXTLEN], temp_tooltip_text[BCTEXTLEN];
  61         int status;
  62         int64_t keypress_tooltip_timer;
  63         float angle_offset;
  64         float start_cursor_angle;
  65         float start_needle_angle;
  66         float prev_angle, angle_correction;
  67         int use_caption;
  68 };
  69
  70 class BC_FPot : public BC_Pot
  71 {
  72 public:
  73         BC_FPot(int x,
  74                 int y,
  75                 float value,
  76                 float minvalue,
  77                 float maxvalue,
  78                 VFrame **data = 0);
  79         ~BC_FPot();
  80
  81         char* get_caption();
  82         int increase_value();
  83         int decrease_value();
  84         float get_percentage();
  85         float get_value();
  86         int percentage_to_value(float percentage);
  87         void update(float value);
  88         void update(float value, float minvalue, float maxvalue);
  89         void set_precision(float value);
  90
  91 private:
  92         float value, minvalue, maxvalue;
  93         float precision;
  94 };
  95
  96 class BC_IPot : public BC_Pot
  97 {
  98 public:
  99         BC_IPot(int x,
 100                 int y,
 101                 int64_t value,
 102                 int64_t minvalue,
 103                 int64_t maxvalue,
 104                 VFrame **data = 0);
 105         ~BC_IPot();
 106
 107         char* get_caption();
 108         int increase_value();
 109         int decrease_value();
 110         float get_percentage();
 111         int percentage_to_value(float percentage);
 112         int64_t get_value();
 113         void update(int64_t value);
 114         void update(int64_t value, int64_t minvalue, int64_t maxvalue);
 115
 116 private:
 117         int64_t value, minvalue, maxvalue;
 118 };
 119
 120 class BC_QPot : public BC_Pot
 121 {
 122 public:
 123         BC_QPot(int x,
 124                 int y,
 125                 int64_t value,      // Units of frequencies
 126                 VFrame **data = 0);
 127         ~BC_QPot();
 128
 129         char* get_caption();
 130         int increase_value();
 131         int decrease_value();
 132         float get_percentage();
 133         int percentage_to_value(float percentage);
 134 // Units of frequencies
 135         int64_t get_value();
 136 // Units of frequencies
 137         void update(int64_t value);
 138
 139 private:
 140 // Units of frequency index
 141         int64_t value, minvalue, maxvalue;
 142 };
 143
 144 class BC_PercentagePot : public BC_Pot
 145 {
 146 public:
 147         BC_PercentagePot(int x,
 148                 int y,
 149                 float value,
 150                 float minvalue,
 151                 float maxvalue,
 152                 VFrame **data = 0);
 153         ~BC_PercentagePot();
 154
 155         char* get_caption();
 156         int increase_value();
 157         int decrease_value();
 158         float get_percentage();
 159         float get_value();
 160         int percentage_to_value(float percentage);
 161         void update(float value);
 162
 163 private:
 164         float value, minvalue, maxvalue;
 165 };
 166
 167 #endif
 168 /*
 169 //      Local Variables:
 170 //      mode: C++
 171 //      c-file-style: "linux"
 172 //      End:
 173 */