ui/radio.c

   1 /* $Id: radio.c,v 1.6 2005-07-03 13:12:47 chris Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 #ifdef RCS
  16 static char rcsid[] = "$Id: radio.c,v 1.6 2005-07-03 13:12:47 chris Exp $";
  17 #endif
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "conf.h"
  21 #endif
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "fix.h"
  27 #include "pstypes.h"
  28 #include "gr.h"
  29 #include "ui.h"
  30 #include "key.h"
  31 #include "u_mem.h"
  32
  33 #include "mono.h"
  34
  35 #define Middle(x) ((2*(x)+1)/4)
  36
  37 void ui_draw_radio( UI_GADGET_RADIO * radio )
  38 {
  39
  40         if ((radio->status==1) || (radio->position != radio->oldposition))
  41         {
  42                 radio->status = 0;
  43
  44                 ui_mouse_hide();
  45                 gr_set_current_canvas( radio->canvas );
  46
  47                 if (CurWindow->keyboard_focus_gadget == (UI_GADGET *) radio)
  48                         gr_set_fontcolor(CRED, -1);
  49                 else
  50                         gr_set_fontcolor(CBLACK, -1);
  51
  52                 if (radio->position == 0 )
  53                 {
  54                         ui_draw_box_out( 0, 0, radio->width-1, radio->height-1 );
  55                         if (radio->flag)
  56                                 ui_string_centered(Middle(radio->width), Middle(radio->height), "O");
  57                         else
  58                                 ui_string_centered(Middle(radio->width), Middle(radio->height), " ");
  59                 } else {
  60                         ui_draw_box_in( 0, 0, radio->width-1, radio->height-1 );
  61                         if (radio->flag)
  62                                 ui_string_centered(Middle(radio->width) + 1, Middle(radio->height) + 1, "O");
  63                         else
  64                                 ui_string_centered(Middle(radio->width) + 1, Middle(radio->height) + 1, " ");
  65                 }
  66
  67                 gr_ustring( radio->width+4, 2, radio->text );
  68
  69                 ui_mouse_show();
  70         }
  71 }
  72
  73
  74 UI_GADGET_RADIO * ui_add_gadget_radio( UI_WINDOW * wnd, short x, short y, short w, short h, short group, char * text )
  75 {
  76         UI_GADGET_RADIO * radio;
  77
  78         radio = (UI_GADGET_RADIO *)ui_gadget_add( wnd, 4, x, y, x+w-1, y+h-1 );
  79
  80         radio->text = d_strdup(text);
  81         radio->width = w;
  82         radio->height = h;
  83         radio->position = 0;
  84         radio->oldposition = 0;
  85         radio->pressed = 0;
  86         radio->flag = 0;
  87         radio->group = group;
  88
  89         return radio;
  90
  91 }
  92
  93
  94 void ui_radio_do( UI_GADGET_RADIO * radio, int keypress )
  95 {
  96         UI_GADGET * tmp;
  97         UI_GADGET_RADIO * tmpr;
  98         int OnMe, ButtonLastSelected;
  99         keypress  = keypress;
 100
 101         OnMe = ui_mouse_on_gadget( (UI_GADGET *)radio );
 102
 103         radio->oldposition = radio->position;
 104
 105         if (selected_gadget != NULL)
 106         {
 107                 if (selected_gadget->kind==4)
 108                         ButtonLastSelected = 1;
 109                 else
 110                         ButtonLastSelected = 0;
 111         } else
 112                 ButtonLastSelected = 1;
 113
 114
 115         if ( B1_PRESSED && OnMe && ButtonLastSelected )
 116         {
 117
 118                 radio->position = 1;
 119         } else  {
 120                 radio->position = 0;
 121         }
 122
 123
 124         if ((CurWindow->keyboard_focus_gadget==(UI_GADGET *)radio) && (keyd_pressed[KEY_SPACEBAR] || keyd_pressed[KEY_ENTER] ) )
 125                 radio->position = 2;
 126
 127         if ((radio->position==0) && (radio->oldposition==1) && OnMe )
 128                 radio->pressed = 1;
 129         else if ((radio->position==0) && (radio->oldposition==2) && (CurWindow->keyboard_focus_gadget==(UI_GADGET *)radio) )
 130                 radio->pressed = 1;
 131         else
 132                 radio->pressed = 0;
 133
 134         if ((radio->pressed == 1) && (radio->flag==0))
 135         {
 136                 tmp = (UI_GADGET *)radio->next;
 137
 138                 while (tmp != (UI_GADGET *)radio )
 139                 {
 140                         if (tmp->kind==4)
 141                         {
 142                                 tmpr = (UI_GADGET_RADIO *)tmp;
 143                                 if ((tmpr->group == radio->group ) && (tmpr->flag) )
 144                                 {
 145                                         tmpr->flag = 0;
 146                                         tmpr->status = 1;
 147                                         tmpr->pressed = 0;
 148                                 }
 149                         }
 150                         tmp = tmp->next;
 151                 }
 152                 radio->flag = 1;
 153         }
 154
 155         ui_draw_radio( radio );
 156
 157 }
 158
 159 void ui_radio_set_value(UI_GADGET_RADIO *radio, sbyte value)
 160 {
 161         UI_GADGET_RADIO *tmp;
 162
 163         if (radio->flag == value)
 164                 return;
 165
 166         radio->flag = value;
 167         radio->status = 1;      // redraw
 168
 169         tmp = (UI_GADGET_RADIO *) radio->next;
 170
 171         while (tmp != radio)
 172         {
 173                 if ((tmp->kind == 4) && (tmp->group == radio->group) && tmp->flag)
 174                 {
 175                         tmp->flag = 0;
 176                         tmp->status = 1;
 177                 }
 178                 tmp = (UI_GADGET_RADIO *) tmp->next;
 179         }
 180 }