ui/gadget.c

   1 /* $Id: gadget.c,v 1.3 2004-12-19 15:21:11 btb 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: gadget.c,v 1.3 2004-12-19 15:21:11 btb Exp $";
  17 #endif
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "conf.h"
  21 #endif
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 #include "mem.h"
  27 #include "fix.h"
  28 #include "types.h"
  29 #include "gr.h"
  30 #include "ui.h"
  31
  32 #include "key.h"
  33
  34 UI_GADGET * selected_gadget;
  35
  36 UI_GADGET * ui_gadget_add( UI_WINDOW * wnd, short kind, short x1, short y1, short x2, short y2 )
  37 {
  38         UI_GADGET * gadget;
  39
  40         gadget = (UI_GADGET *)malloc( sizeof(UI_GADGET) );
  41         if (gadget==NULL) exit(1);
  42
  43         if (wnd->gadget == NULL )
  44         {
  45                 wnd->gadget = gadget;
  46                 gadget->prev = gadget;
  47                 gadget->next = gadget;
  48         } else {
  49                 wnd->gadget->prev->next = gadget;
  50                 gadget->next = wnd->gadget;
  51                 gadget->prev = wnd->gadget->prev;
  52                 wnd->gadget->prev = gadget;
  53         }
  54
  55         gadget->when_tab = NULL;
  56         gadget->when_btab = NULL;
  57         gadget->when_up = NULL;
  58         gadget->when_down = NULL;
  59         gadget->when_left = NULL;
  60         gadget->when_right = NULL;
  61         gadget->kind = kind;
  62         gadget->status = 1;
  63         gadget->oldstatus = 0;
  64         if ( x1==0 && x2==0 && y1==0 && y2== 0 )
  65                 gadget->canvas = NULL;
  66         else
  67                 gadget->canvas = gr_create_sub_canvas( wnd->canvas, x1, y1, x2-x1+1, y2-y1+1 );
  68         gadget->x1 = gadget->canvas->cv_bitmap.bm_x;
  69         gadget->y1 = gadget->canvas->cv_bitmap.bm_y;
  70         gadget->x2 = gadget->canvas->cv_bitmap.bm_x+x2-x1+1;
  71         gadget->y2 = gadget->canvas->cv_bitmap.bm_y+y2-y1+1;
  72         gadget->parent = NULL;
  73         gadget->hotkey = -1;
  74         return gadget;
  75
  76 }
  77
  78 void ui_gadget_delete_all( UI_WINDOW * wnd )
  79 {
  80         UI_GADGET * tmp;
  81
  82         ui_pad_deactivate();
  83
  84         while( wnd->gadget != NULL )
  85         {
  86                 tmp = wnd->gadget;
  87                 if (tmp->next == tmp )
  88                 {
  89                         wnd->gadget = NULL;
  90                 } else {
  91                         tmp->next->prev = tmp->prev;
  92                         tmp->prev->next = tmp->next;
  93                         wnd->gadget = tmp->next;
  94                 }
  95                 if (tmp->canvas)
  96                         gr_free_sub_canvas( tmp->canvas );
  97
  98
  99                 if (tmp->kind == 1 )    // Button
 100                 {
 101                         UI_GADGET_BUTTON * but1 = (UI_GADGET_BUTTON *)tmp;
 102                         if (but1->text)
 103                                 free( but1->text );
 104                 }
 105
 106                 if (tmp->kind == 6 )    // Inputbox
 107                 {
 108                         UI_GADGET_INPUTBOX * but1 = (UI_GADGET_INPUTBOX *)tmp;
 109                         free( but1->text );
 110                 }
 111
 112                 if (tmp->kind == 5 )    // Checkbox
 113                 {
 114                         UI_GADGET_CHECKBOX * but1 = (UI_GADGET_CHECKBOX *)tmp;
 115                         free( but1->text );
 116                 }
 117
 118                 if (tmp->kind == 9 )    // Icon
 119                 {
 120                         UI_GADGET_ICON * but1 = (UI_GADGET_ICON *)tmp;
 121                         free( but1->text );
 122                 }
 123
 124
 125                 free( tmp );
 126         }
 127 }
 128
 129
 130 int is_under_another_window( UI_WINDOW * win, UI_GADGET * gadget )
 131 {
 132         UI_WINDOW * temp;
 133
 134         temp = win->next;
 135
 136         while( temp != NULL )   {
 137                 if (    ( gadget->x1 > temp->x)                                         &&
 138                                 ( gadget->x1 < (temp->x+temp->width) )  &&
 139                                 ( gadget->y1 > temp->y)                                         &&
 140                                 ( gadget->y1 < (temp->y+temp->height) )
 141                         )
 142                 {
 143                                 //gadget->status =1;
 144                                 return 1;
 145                 }
 146
 147
 148                 if (    ( gadget->x2 > temp->x)                                         &&
 149                                 ( gadget->x2 < (temp->x+temp->width) )  &&
 150                                 ( gadget->y2 > temp->y)                                         &&
 151                                 ( gadget->y2 < (temp->y+temp->height) )
 152                         )
 153                 {
 154                                 //gadget->status =1;
 155                                 return 1;
 156                 }
 157
 158
 159                 temp = temp->next;
 160         }
 161         return 0;
 162 }
 163
 164
 165 int ui_mouse_on_gadget( UI_GADGET * gadget )
 166 {
 167         if ((Mouse.x >= gadget->x1) && (Mouse.x <= gadget->x2-1) &&     (Mouse.y >= gadget->y1) &&      (Mouse.y <= gadget->y2-1) )     {
 168                 if (is_under_another_window(CurWindow, gadget))
 169                         return 0;
 170                 return 1;
 171         } else
 172                 return 0;
 173 }
 174
 175 void ui_window_do_gadgets( UI_WINDOW * wnd )
 176 {
 177         int keypress;
 178         UI_GADGET * tmp, * tmp1;
 179
 180         CurWindow = wnd;
 181
 182         keypress = last_keypress;
 183
 184         tmp = wnd->gadget;
 185
 186         if (tmp == NULL ) return;
 187
 188         if (selected_gadget==NULL)
 189                 selected_gadget = tmp;
 190
 191         tmp1 = wnd->keyboard_focus_gadget;
 192
 193         do
 194         {
 195                 if (ui_mouse_on_gadget(tmp) && B1_JUST_PRESSED )
 196                 {
 197                         selected_gadget = tmp;
 198                         if (tmp->parent!=NULL)
 199                         {
 200                                 while (tmp->parent != NULL )
 201                                         tmp = tmp->parent;
 202                                 wnd->keyboard_focus_gadget = tmp;
 203                                 break;
 204                         }
 205                         else
 206                         {
 207                                 wnd->keyboard_focus_gadget = tmp;
 208                                 break;
 209                         }
 210                 }
 211                 if ( tmp->hotkey == keypress )
 212                 {
 213                         wnd->keyboard_focus_gadget = tmp;
 214                         break;
 215                 }
 216                 tmp = tmp->next;
 217         } while( tmp != wnd->gadget );
 218
 219         if (wnd->keyboard_focus_gadget != NULL)
 220         {
 221                 switch (keypress )
 222                 {
 223                         case (KEY_TAB):
 224                                 if ( wnd->keyboard_focus_gadget->when_tab != NULL )
 225                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_tab;
 226                                 break;
 227                         case (KEY_TAB+KEY_SHIFTED):
 228                                 if ( wnd->keyboard_focus_gadget->when_btab != NULL )
 229                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_btab;
 230                                 break;
 231                         case (KEY_UP):
 232                                 if ( wnd->keyboard_focus_gadget->when_up != NULL )
 233                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_up;
 234                                 break;
 235                         case (KEY_DOWN):
 236                                 if ( wnd->keyboard_focus_gadget->when_down != NULL )
 237                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_down;
 238                                 break;
 239                         case (KEY_LEFT):
 240                                 if ( wnd->keyboard_focus_gadget->when_left != NULL )
 241                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_left;
 242                                 break;
 243                         case (KEY_RIGHT):
 244                                 if ( wnd->keyboard_focus_gadget->when_right != NULL )
 245                                         wnd->keyboard_focus_gadget = wnd->keyboard_focus_gadget->when_right;
 246                                 break;
 247                 }
 248         }
 249
 250         if (wnd->keyboard_focus_gadget != tmp1)
 251         {
 252                 if (wnd->keyboard_focus_gadget != NULL )
 253                         wnd->keyboard_focus_gadget->status = 1;
 254                 if (tmp1 != NULL )
 255                         tmp1->status = 1;
 256         }
 257
 258         tmp = wnd->gadget;
 259         do
 260         {
 261                 if (!is_under_another_window( CurWindow, tmp )) {
 262                         UI_WINDOW *curwindow_save=CurWindow;
 263
 264                         switch( tmp->kind )
 265                         {
 266                         case 1:
 267                                 ui_button_do( (UI_GADGET_BUTTON *)tmp, keypress );
 268                                 break;
 269                         case 2:
 270                                 ui_listbox_do( (UI_GADGET_LISTBOX *)tmp, keypress );
 271                                 break;
 272                         case 3:
 273                                 ui_scrollbar_do( (UI_GADGET_SCROLLBAR *)tmp, keypress );
 274                                 break;
 275                         case 4:
 276                                 ui_radio_do( (UI_GADGET_RADIO *)tmp, keypress );
 277                                 break;
 278                         case 5:
 279                                 ui_checkbox_do( (UI_GADGET_CHECKBOX *)tmp, keypress );
 280                                 break;
 281                         case 6:
 282                                 ui_inputbox_do( (UI_GADGET_INPUTBOX *)tmp, keypress );
 283                                 break;
 284                         case 7:
 285                                 ui_userbox_do( (UI_GADGET_USERBOX *)tmp, keypress );
 286                                 break;
 287                         case 8:
 288                                 ui_keytrap_do( (UI_GADGET_KEYTRAP *)tmp, keypress );
 289                                 break;
 290                         case 9:
 291                                 ui_icon_do( (UI_GADGET_ICON *)tmp, keypress );
 292                                 break;
 293                         }
 294
 295                         CurWindow=curwindow_save;
 296                 }
 297
 298                 tmp = tmp->next;
 299         } while( tmp != wnd->gadget );
 300 }
 301
 302
 303
 304 UI_GADGET * ui_gadget_get_next( UI_GADGET * gadget )
 305 {
 306         UI_GADGET * tmp;
 307
 308         tmp = gadget->next;
 309
 310         while( tmp != gadget && (tmp->parent!=NULL) )
 311                 tmp = tmp->next;
 312
 313         return tmp;
 314 }
 315
 316 UI_GADGET * ui_gadget_get_prev( UI_GADGET * gadget )
 317 {
 318         UI_GADGET * tmp;
 319
 320         tmp = gadget->prev;
 321
 322         while( tmp != gadget && (tmp->parent!=NULL) )
 323                 tmp = tmp->prev;
 324
 325         return tmp;
 326 }
 327
 328 void ui_gadget_calc_keys( UI_WINDOW * wnd)
 329 {
 330         UI_GADGET * tmp;
 331
 332         tmp = wnd->gadget;
 333
 334         if (tmp==NULL) return;
 335
 336         do
 337         {
 338                 tmp->when_tab = ui_gadget_get_next(tmp);
 339                 tmp->when_btab = ui_gadget_get_prev(tmp);
 340
 341                 tmp = tmp->next;
 342         } while( tmp != wnd->gadget );
 343
 344 }