mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Glass/!Glass/c/wWindows

   1 /*
   2  * wWindows.c
   3  *
   4  * Manipulation of template windows
   5  *
   6  * © 1994-1998 Straylight
   7  */
   8
   9 /*----- Licensing note ----------------------------------------------------*
  10  *
  11  * This file is part of Straylight's Glass.
  12  *
  13  * Glass is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2, or (at your option)
  16  * any later version.
  17  *
  18  * Glass is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with Glass.  If not, write to the Free Software Foundation,
  25  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26  */
  27
  28 /*----- Header files ------------------------------------------------------*/
  29
  30 /*
  31  * ANSI standard headers
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 /*
  39  * Steel headers
  40  */
  41
  42 #define _STDAPP
  43 #define _LOWLVL
  44 #include "steel/Steel.h"
  45
  46 #include "steel/flex.h"
  47
  48 /*
  49  * Glass headers
  50  */
  51
  52 #include "gStruct.h"
  53 #include "gMenus.h"
  54 #include "gIcons.h"
  55
  56 #include "glass.h"
  57 #include "tfile.h"
  58 #include "window.h"
  59 #include "_window.h"
  60 #include "editWin.h"
  61
  62 /*----- Main code ---------------------------------------------------------*/
  63
  64 /*
  65  * wimp_w window__recreate(glass_windPointer *w)
  66  *
  67  * Use
  68  *  Recreates a window, getting all the fiddly bits right.
  69  *
  70  * Parameters
  71  *  glass_windPointer *w == the window
  72  *
  73  * Returns
  74  *  The window handle, or 0 for failure
  75  */
  76
  77 wimp_w window__recreate(glass_windPointer *w)
  78 {
  79   wimp_iconflags icf;
  80   wimp_w wh;
  81   int i;
  82
  83   /* --- Update all the sprite areas for the title bar and icons --- */
  84
  85   icf=w->def->desc.w.titleflags;
  86   if ((icf & wimp_INDIRECT) && (icf & wimp_ISPRITE) && !(icf & wimp_ITEXT))
  87     w->def->desc.w.title.indirectsprite.spritearea=w->t->s;
  88   for (i=0;i<w->def->desc.w.nicons;i++)
  89   {
  90     icf=w->def->i[i].i.flags;
  91     if ((icf & wimp_INDIRECT) && (icf & wimp_ISPRITE) && !(icf & wimp_ITEXT))
  92       w->def->i[i].i.data.indirectsprite.spritearea=w->t->s;
  93   }
  94
  95   /* --- If we're in test mode, allocate space for all the icons --- */
  96
  97 #ifndef glass_DEMO
  98   if (w->testMode)
  99   {
 100     wimp_wind *wp;
 101     wimp_icon *ip;
 102
 103     if (!flex_alloc((flex_ptr)&wp,
 104                     sizeof(wimp_wind)+
 105                     w->def->desc.w.nicons*sizeof(wimp_icon)))
 106       return (0);
 107
 108     /* --- Copy the window data across from our main structure --- */
 109
 110     *wp=w->def->desc.w;
 111     ip=(wimp_icon *)(wp+1);
 112     for (i=0;i<w->def->desc.w.nicons;i++)
 113       ip[i]=w->def->i[i].i;
 114     wp->spritearea=w->t->s;
 115
 116     /* --- Mangle the flags a little --- */
 117
 118     wp->flags&=~wimp_WPANE;     /* Strange things occur if we don't...    */
 119     wp->flags&=~wimp_BACK_WINDOW; /* Don't let Pinboard hide my windows   */
 120     wp->flags&=~wimp_HOT_KEYS;  /* Don't grab hot keys -- no use for them */
 121
 122     /* --- Bodge the window extent --- *
 123      *
 124      * Since the visible area can now `stretch' the window extent, we may
 125      * need to bodge the extent for a bit
 126      */
 127
 128     wp->ex.x1=max2(wp->ex.x1,wp->scx+wp->box.x1-wp->box.x0);
 129     wp->ex.y0=min2(wp->ex.y0,wp->scy-wp->box.y1+wp->box.y0);
 130     w->tex=wp->ex;
 131
 132     /* --- Try to create the window --- */
 133
 134     if (wimpt_complain(wimp_create_wind(wp,&wh)))
 135     {
 136       flex_free((flex_ptr)&wp);
 137       return (0);
 138     }
 139     flex_free((flex_ptr)&wp);
 140
 141     /* --- Bodge for WimpExtension being buggy --- *
 142      *
 143      * WimpExtension doesn't accept NULL-terminated strings for all its
 144      * validation strings, so we have to go through them all and return-
 145      * terminate them :-(.  Hopefully we won't have to do this when
 146      * WimpExtension II is ready.
 147      */
 148
 149   #ifndef window__WimpExtension_works_with_null_terminated_strings
 150     for (i=0;i<w->def->desc.w.nicons;i++)
 151     {
 152       if ( (w->def->i[i].i.flags & wimp_INDIRECT) &&
 153            (w->def->i[i].i.flags & wimp_ITEXT) &&
 154            (w->def->i[i].i.data.indirecttext.validstring!=(char *)-1) )
 155       {
 156         char *j;
 157         for (j=w->def->i[i].i.data.indirecttext.validstring;*j>=32;j++)
 158           /* thing */;
 159         *j=0x0d;
 160       }
 161     }
 162   #endif
 163
 164   }
 165   else
 166 #endif
 167
 168   /* --- We're creating the window for editing -- don't make icons --- */
 169
 170   {
 171     wimp_wind wdef;
 172
 173     wdef=w->def->desc.w;
 174
 175     wdef.ex.x1=max2(wdef.ex.x1,wdef.scx+wdef.box.x1-wdef.box.x0);
 176     wdef.ex.y0=min2(wdef.ex.y0,wdef.scy-wdef.box.y1+wdef.box.y0);
 177     w->tex=wdef.ex;
 178
 179     wdef.nicons=0;               /* We draw the icons ourselves            */
 180     wdef.spritearea=w->t->s;     /* Set up sprite area                     */
 181     wdef.workflags=wimp_BCLICKDRAGDOUBLE<<12;
 182     wdef.flags|=wimp_WMOVEABLE;  /* Make window movable (Acorn karnt spel) */
 183     wdef.flags&=~wimp_REDRAW_OK; /* We need to draw the icons!             */
 184     wdef.flags&=~wimp_WPANE;     /* Show the highlight on the actual window*/
 185     wdef.flags&=~wimp_BACK_WINDOW; /* Let it come to the front nicely      */
 186     wdef.flags&=~wimp_HOT_KEYS;  /* Don't grab hot keys -- no use for them */
 187     if (wimpt_complain(wimp_create_wind(&wdef,&wh)))
 188       return(0);                 /* Don't be too unhappy if it failed      */
 189   }
 190
 191   win_activeinc();               /* Pointless convention, but there you go */
 192   return (wh);
 193 }
 194
 195 /*
 196  * void window__nudgeScroll(glass_windPointer *w,int x,int y)
 197  *
 198  * Use
 199  *  Scrolls the window a bit, by adding the x and y values given to the
 200  *  scroll offsets of the window.  The values are multiplied up to give a
 201  *  sensible sized scroll.
 202  *
 203  * Parameters
 204  *  glass_windPointer *w == the window to scroll
 205  *  int x == the x scroll offset to add
 206  *  int y == the y scroll offset to add
 207  */
 208
 209 void window__nudgeScroll(glass_windPointer *w,int x,int y)
 210 {
 211   wimp_wstate s;
 212
 213   /* --- Scroll the window --- */
 214
 215   wimpt_noerr(wimp_get_wind_state(w->h,&s));
 216   s.o.x+=x*32;
 217   s.o.y+=y*32;
 218   wimpt_noerr(wimp_open_wind(&s.o));
 219   wimpt_noerr(wimp_get_wind_state(w->h,&s));
 220
 221   /* --- Write the new scroll values back to the window block --- */
 222
 223   if (s.o.x!=w->def->desc.w.scx || s.o.y!=w->def->desc.w.scy)
 224   {
 225     w->def->desc.w.scx=s.o.x;
 226     w->def->desc.w.scy=s.o.y;
 227     if (!w->t->alts)             /* Moving the window alters the template  */
 228       tfile_markAsAltered(w->t); /* But only if not already altered        */
 229     editWindow_windowMoved(w);
 230   }
 231 }
 232
 233 /*
 234  * void window_hasBeenDeleted(glass_windPointer *w)
 235  *
 236  * Use
 237  *  Informs the window system that a window is about to be deleted.
 238  *
 239  * Parameters
 240  *  glass_windPointer *w == the window that bites the dust
 241  */
 242
 243 void window_hasBeenDeleted(glass_windPointer *w)
 244 {
 245   if (window_selectionOwner()==w)
 246     window__gainSelection(0);
 247   if (window__menuOwner()==w)
 248     window__updateMenu(0);
 249   if (w->ownPointer)
 250   {
 251     win_removeIdleClaimer(window__winIdles,w);
 252     window__setPtrShape(window__SELECT);
 253   }
 254 }
 255
 256 /*
 257  * void window_recreate(glass_windPointer *w)
 258  *
 259  * Use
 260  *  Recreates a window after editing.  Nothing happens if the window is not
 261  *  open already.  If an error occurs, the open window is removed and left
 262  *  that way.
 263  *
 264  * Parameters
 265  *  glass_windPointer *w == the window to recreate
 266  */
 267
 268 void window_recreate(glass_windPointer *w)
 269 {
 270   wimp_wstate s;
 271   wimp_w wnd;
 272   if (!w->h)
 273     return;
 274   wimpt_noerr(wimp_get_wind_state(w->h,&s));
 275   wimpt_noerr(wimp_delete_wind(w->h));
 276   win_register_event_handler(w->h,0,0);
 277   win_activedec();
 278   if (wnd=window__recreate(w),!wnd)
 279     return;
 280   win_register_event_handler(wnd,window__events,w);
 281   w->h=wnd;
 282   s.o.w=w->h;
 283   wimpt_noerr(wimp_open_wind(&s.o));
 284   window_updateToolbar();
 285 }
 286
 287 /*
 288  * void window_close(glass_windPointer *w)
 289  *
 290  * Use
 291  *  Closes the specified window.
 292  *
 293  * Parameters
 294  *  glass_windPointer *w == the window wot we 'ave to close
 295  */
 296
 297 void window_close(glass_windPointer *w)
 298 {
 299 #ifndef glass_DEMO
 300   int i;
 301   wimp_icon icn;
 302 #endif
 303
 304   wimpt_noerr(wimp_close_wind(w->h)); /* Closed, guv'nor                   */
 305   if (window_selectionOwner()==w)
 306     window__gainSelection(0);
 307
 308 #ifndef glass_DEMO
 309   if (w->testMode)
 310   {
 311     for (i=0;i<w->def->desc.w.nicons;i++)
 312     {
 313       wimpt_noerr(wimp_get_icon_info(w->h,i,&icn));
 314       if (memcmp(&icn,&w->def->i[i].i,sizeof(wimp_icon)))
 315       {
 316         tfile_markAsAltered(w->t);
 317         w->def->i[i].i=icn;
 318       }
 319     }
 320   }
 321   else
 322 #endif
 323
 324   if (w->ownPointer)
 325   {
 326     win_removeIdleClaimer(window__winIdles,w);
 327     window__setPtrShape(window__SELECT);
 328   }
 329   win_register_event_handler(w->h,0,0); /* Window won't need this now      */
 330   wimpt_noerr(wimp_delete_wind(w->h)); /* Delete the window                */
 331   w->h=0;                        /* Make sure nobody does anything stupid  */
 332
 333   if (window__menuOwner()==w)
 334     window__updateMenu(0);
 335 }
 336
 337 /*
 338  * void window_open(glass_windPointer *w,BOOL test)
 339  *
 340  * Use
 341  *  Opens the specified window.  If the window is off-screen, it is moved
 342  *  back.  This routine also registers all handlers required for editing the
 343  *  window etc.  If the window is already open, it is brought to the front.
 344  *
 345  * Parameters
 346  *  glass_windPointer *w == pointer to basic window information.
 347  *  BOOL test == open in test mode or not
 348  */
 349
 350 void window_open(glass_windPointer *w,BOOL test)
 351 {
 352   wimp_wstate s;
 353   int i;
 354
 355   /* --- Create the window if it doesn't exist yet --- */
 356
 357   if (!w->h)
 358   {
 359     /* --- Allow tfile to set the test flag --- */
 360
 361   #ifndef glass_DEMO
 362     w->testMode=test;
 363   #else
 364     unused(test);
 365   #endif
 366
 367     /* --- Unselect all the window's icons and guides --- */
 368
 369     for (i=0;i<w->def->desc.w.nicons;i++)
 370     {
 371       w->def->i[i].selected=FALSE;
 372       w->def->i[i].copied=FALSE;
 373     }
 374
 375     for (i=0;i<glass_GUIDELIMIT;i++)
 376       w->guide[i].selected=FALSE;
 377     w->lastClicked=-1;
 378     w->selno=0;
 379     w->ownPointer=FALSE;
 380     w->renumber=FALSE;
 381
 382     /* --- Finally, create the window and attach the event handler --- */
 383
 384     if (w->h=window__recreate(w),!w->h)
 385       return;
 386   #ifndef glass_DEMO
 387     if (test)
 388       win_register_event_handler(w->h,window__testEvents,w);
 389     else
 390   #endif
 391       win_register_event_handler(w->h,window__events,w);
 392   }
 393   /* --- Now we can open the window --- */
 394
 395   wimpt_noerr(wimp_get_wind_state(w->h,&s));
 396   s.o.behind=-1;                 /* Open the window on top of the screen   */
 397   win_adjustBox(&s.o);           /* Make sure it goes on the screen!       */
 398   wimpt_noerr(wimp_open_wind(&s.o)); /* Go!                                */
 399   wimpt_noerr(wimp_get_wind_state(w->h,&s)); /* Find out where it went     */
 400   w->def->desc.w.box=s.o.box;
 401   w->def->desc.w.scx=s.o.x;
 402   w->def->desc.w.scy=s.o.y;
 403   w->def->desc.w.behind=s.o.behind;
 404   editWindow_windowMoved(w);
 405   if (window_selectionOwner()==w)
 406     window_updateToolbar();
 407 }