ui/radio.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14 #ifdef HAVE_CONFIG_H
  15 #include "conf.h"
  16 #endif
  17
  18 #include <stdlib.h>
  19 #include <string.h>
  20
  21 #include "fix.h"
  22 #include "pstypes.h"
  23 #include "gr.h"
  24 #include "ui.h"
  25 #include "key.h"
  26 #include "u_mem.h"
  27
  28 #include "mono.h"
  29
  30 #define Middle(x) ((2*(x)+1)/4)
  31
  32 void ui_draw_radio( UI_GADGET_RADIO * radio )
  33 {
  34
  35         if ((radio->status==1) || (radio->position != radio->oldposition))
  36         {
  37                 radio->status = 0;
  38
  39                 ui_mouse_hide();
  40                 gr_set_current_canvas( radio->canvas );
  41
  42                 if (CurWindow->keyboard_focus_gadget == (UI_GADGET *) radio)
  43                         gr_set_fontcolor(CRED, -1);
  44                 else
  45                         gr_set_fontcolor(CBLACK, -1);
  46
  47                 if (radio->position == 0 )
  48                 {
  49                         ui_draw_box_out( 0, 0, radio->width-1, radio->height-1 );
  50                         if (radio->flag)
  51                                 ui_string_centered(Middle(radio->width), Middle(radio->height), "O");
  52                         else
  53                                 ui_string_centered(Middle(radio->width), Middle(radio->height), " ");
  54                 } else {
  55                         ui_draw_box_in( 0, 0, radio->width-1, radio->height-1 );
  56                         if (radio->flag)
  57                                 ui_string_centered(Middle(radio->width) + 1, Middle(radio->height) + 1, "O");
  58                         else
  59                                 ui_string_centered(Middle(radio->width) + 1, Middle(radio->height) + 1, " ");
  60                 }
  61
  62                 gr_ustring( radio->width+4, 2, radio->text );
  63
  64                 ui_mouse_show();
  65         }
  66 }
  67
  68
  69 UI_GADGET_RADIO * ui_add_gadget_radio( UI_WINDOW * wnd, short x, short y, short w, short h, short group, char * text )
  70 {
  71         UI_GADGET_RADIO * radio;
  72
  73         radio = (UI_GADGET_RADIO *)ui_gadget_add( wnd, 4, x, y, x+w-1, y+h-1 );
  74
  75         radio->text = d_strdup(text);
  76         radio->width = w;
  77         radio->height = h;
  78         radio->position = 0;
  79         radio->oldposition = 0;
  80         radio->pressed = 0;
  81         radio->flag = 0;
  82         radio->group = group;
  83
  84         return radio;
  85
  86 }
  87
  88
  89 void ui_radio_do( UI_GADGET_RADIO * radio, int keypress )
  90 {
  91         UI_GADGET * tmp;
  92         UI_GADGET_RADIO * tmpr;
  93         int OnMe, ButtonLastSelected;
  94
  95         OnMe = ui_mouse_on_gadget( (UI_GADGET *)radio );
  96
  97         radio->oldposition = radio->position;
  98
  99         if (selected_gadget != NULL)
 100         {
 101                 if (selected_gadget->kind==4)
 102                         ButtonLastSelected = 1;
 103                 else
 104                         ButtonLastSelected = 0;
 105         } else
 106                 ButtonLastSelected = 1;
 107
 108
 109         if ( B1_PRESSED && OnMe && ButtonLastSelected )
 110         {
 111
 112                 radio->position = 1;
 113         } else  {
 114                 radio->position = 0;
 115         }
 116
 117
 118         if ((CurWindow->keyboard_focus_gadget==(UI_GADGET *)radio) && (keyd_pressed[KEY_SPACEBAR] || keyd_pressed[KEY_ENTER] ) )
 119                 radio->position = 2;
 120
 121         if ((radio->position==0) && (radio->oldposition==1) && OnMe )
 122                 radio->pressed = 1;
 123         else if ((radio->position==0) && (radio->oldposition==2) && (CurWindow->keyboard_focus_gadget==(UI_GADGET *)radio) )
 124                 radio->pressed = 1;
 125         else
 126                 radio->pressed = 0;
 127
 128         if ((radio->pressed == 1) && (radio->flag==0))
 129         {
 130                 tmp = (UI_GADGET *)radio->next;
 131
 132                 while (tmp != (UI_GADGET *)radio )
 133                 {
 134                         if (tmp->kind==4)
 135                         {
 136                                 tmpr = (UI_GADGET_RADIO *)tmp;
 137                                 if ((tmpr->group == radio->group ) && (tmpr->flag) )
 138                                 {
 139                                         tmpr->flag = 0;
 140                                         tmpr->status = 1;
 141                                         tmpr->pressed = 0;
 142                                 }
 143                         }
 144                         tmp = tmp->next;
 145                 }
 146                 radio->flag = 1;
 147         }
 148
 149         ui_draw_radio( radio );
 150
 151 }
 152
 153 void ui_radio_set_value(UI_GADGET_RADIO *radio, sbyte value)
 154 {
 155         UI_GADGET_RADIO *tmp;
 156
 157         if (radio->flag == value)
 158                 return;
 159
 160         radio->flag = value;
 161         radio->status = 1;      // redraw
 162
 163         tmp = (UI_GADGET_RADIO *) radio->next;
 164
 165         while (tmp != radio)
 166         {
 167                 if ((tmp->kind == 4) && (tmp->group == radio->group) && tmp->flag)
 168                 {
 169                         tmp->flag = 0;
 170                         tmp->status = 1;
 171                 }
 172                 tmp = (UI_GADGET_RADIO *) tmp->next;
 173         }
 174 }