mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Libraries/Steel/c/fontMenu

   1 /*
   2  * fontMenu
   3  *  creates (and handles) a hierarchical font menu
   4  *
   5  * v. 1.00 (22 August 1993)
   6  *
   7  * © 1993-1998 Straylight
   8  */
   9
  10 /*----- Licensing note ----------------------------------------------------*
  11  *
  12  * This file is part of Straylight's Steel library.
  13  *
  14  * Steel is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * Steel is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with Steel.  If not, write to the Free Software Foundation,
  26  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 #include "wimp.h"
  30 #include "fontMenu.h"
  31 #include "msgs.h"
  32 #include "werr.h"
  33 #include "wimpt.h"
  34 #include "menuExt.h"
  35 #include "buffer.h"
  36 #include <stdio.h>
  37 #include "font.h"
  38 #include "visdelay.h"
  39 #include "win.h"
  40 #include "utils.h"
  41
  42 #include <string.h>
  43 #include <stdlib.h>
  44
  45 static BOOL fontMenu__created;
  46 static menu fontMenu__menu;
  47 static char fontMenu__oldFontPath[256];
  48 static BOOL fontMenu__anyFonts;
  49 static BOOL fontMenu__includeSystem;
  50 static int fontMenu__tick1=-1;
  51 static int fontMenu__tick2=-1;
  52
  53 /*
  54  * char *fontMenu__fontFamily(char *fontname)
  55  *
  56  * Use
  57  *  Returns the family name of the given font.
  58  *
  59  * Parameters
  60  *  char *fontname == the name of the font.
  61  *
  62  * Returns
  63  *  The family name of the font (i.e. returns "Trinity" for "Trinity.Medium")
  64  *  as a pointer to a read-only internal static object.
  65  */
  66
  67 static char *fontMenu__fontFamily(char *fontname)
  68 {
  69   char *fontFamily=buffer_find();
  70   int index=0;
  71   char c=fontname[index];
  72   while (c!='.' && c>31)
  73   {
  74     fontFamily[index++]=c;
  75     c=fontname[index];
  76   }
  77   fontFamily[index]='\0';
  78   return (fontFamily);
  79 }
  80
  81 /*
  82  * char *fontMenu__fontLeaf(char *fontname)
  83  *
  84  * Use
  85  *  Returns the leafname of the font (i.e. for "Trinity.Bold.Italic", it
  86  *  returns "Bold.Italic").  If there is no leafname, it returns
  87  *  "(Regular)".
  88  *
  89  * Parameters
  90  *  char *fontname == the font name
  91  *
  92  * Returns
  93  *  A pointer to the leafname (to an internal static object)
  94  */
  95
  96 static char *fontMenu__fontLeaf(char *fontname)
  97 {
  98   char *fontLeaf=buffer_find();
  99   int index=0;
 100   int outi=0;
 101   char c=fontname[index];
 102   BOOL stopHere=FALSE;
 103   while (!stopHere)
 104   {
 105     index++;
 106     if (c<32)
 107       return (msgs_lookup("fontmRF:(Regular)"));
 108     else if (c=='.')
 109       stopHere=TRUE;
 110     c=fontname[index];
 111   }
 112   while (c>31)
 113     c=fontLeaf[outi++]=fontname[index++];
 114   fontLeaf[outi-1]='\0';
 115   return (fontLeaf);
 116 }
 117
 118 /*
 119  * void fontMenu__handleSubmenu(char *buffer,int *count,menu sub)
 120  *
 121  * Use
 122  *  Creates one of those submenus for the font menu.
 123  *
 124  * Parameters
 125  *  char *buffer == a buffer to store font names
 126  *  int *count == pointer to the current font count
 127  *  menu sub == the submenu handle
 128  */
 129
 130 static void fontMenu__handleSubmenu(char *buffer,int *count,menu sub)
 131 {
 132   char newbuff[50];
 133   char gadbuff[50];
 134   strcpy(newbuff,buffer);
 135   wimpt_noerr(font_list(buffer,count));
 136   while
 137   (
 138     strcpy(gadbuff,fontMenu__fontFamily(buffer)),
 139     *count!=-1 && strcmp(gadbuff,fontMenu__fontFamily(newbuff))==0
 140   )
 141   {
 142     menu_extend(sub,fontMenu__fontLeaf(buffer));
 143     strcpy(newbuff,buffer);
 144     wimpt_noerr(font_list(buffer,count));
 145   }
 146 }
 147
 148 /*
 149  * menu fontMenu_createFontMenu(BOOL includeSystem)
 150  *
 151  * Use
 152  *  Creates a hierarchical font menu and returns a handle.  If the menu is
 153  *  out-of-date it will be recreated, if not the old handle will be
 154  *  returned.  You must call this before using routines such as
 155  *  fontMenu_make() (so that the system knows whether you want to use a
 156  *  menu containing the system font or not).  The returned pointer will be
 157  *  NULL if there are no fonts.
 158  *
 159  * Parameters
 160  *  BOOL includeSystem == whether you want to include a 'System font' item
 161  *
 162  * Returns
 163  *  A menu handle for the menu.
 164  */
 165
 166 menu fontMenu_createFontMenu(BOOL includeSystem)
 167 {
 168   char *fontpath=getenv("Font$Path");
 169   int fontCount=0;
 170   char currentfont[50];
 171   char lastTicked[50];
 172   int subIndex=1;
 173   menu submenu;
 174   if (fontMenu__includeSystem!=includeSystem && fontMenu__created==TRUE)
 175   {
 176     fontMenu__created=FALSE;
 177     menu_dispose(&fontMenu__menu,TRUE);
 178     fontMenu__menu=0;
 179   }
 180   fontMenu__includeSystem=includeSystem;
 181   if (fontpath)
 182     fontMenu__anyFonts=TRUE;
 183   else
 184     fontMenu__anyFonts=FALSE;
 185   if (fontMenu__created==TRUE && strcmp(fontpath,fontMenu__oldFontPath)==0)
 186     return (fontMenu__menu);
 187   visdelay_begin();
 188   if (fontMenu__created==TRUE)
 189   {
 190     strcpy(lastTicked,fontMenu_fontname(fontMenu__tick1,fontMenu__tick2));
 191     menu_dispose(&fontMenu__menu,TRUE);
 192   }
 193   if (fontMenu__anyFonts==FALSE)
 194   {
 195     visdelay_end();
 196     if (includeSystem==FALSE)
 197     {
 198       werr(FALSE,msgs_lookup("fontmNF:No fonts available."));
 199       fontMenu__created=FALSE;
 200       return (0);
 201     }
 202     else
 203     {
 204       fontMenu__menu=menu_new
 205       (
 206         msgs_lookup("fontmFT:Fonts"),msgs_lookup("fontmSF:System font")
 207       );
 208       fontMenu__created=TRUE;
 209       return (fontMenu__menu);
 210     }
 211   }
 212   strcpy(fontMenu__oldFontPath,fontpath);
 213   wimpt_noerr(font_list(currentfont,&fontCount));
 214   if (includeSystem)
 215   {
 216     fontMenu__menu=menu_new
 217     (
 218       msgs_lookup("fontmFT:Fonts"),msgs_lookup("fontmSF:System font")
 219     );
 220     menu_extend(fontMenu__menu,fontMenu__fontFamily(currentfont));
 221     subIndex++;
 222   }
 223   else if (fontCount==-1)
 224   {
 225     werr(FALSE,msgs_lookup("fontmNF:No fonts available."));
 226     fontMenu__created=FALSE;
 227     return (0);
 228   }
 229   else
 230   {
 231     fontMenu__menu=menu_new
 232     (
 233       msgs_lookup("fontmFT:Fonts"),fontMenu__fontFamily(currentfont)
 234     );
 235   }
 236   if (!fontMenu__menu)
 237   {
 238     werr
 239     (
 240       FALSE,
 241       msgs_lookup("fontmNEM:Not enough memory to create font menu.")
 242     );
 243     return (0);
 244   }
 245   while (fontCount!=-1)
 246   {
 247     submenu=menu_new
 248     (
 249       fontMenu__fontFamily(currentfont),
 250       fontMenu__fontLeaf(currentfont)
 251     );
 252     if (submenu)
 253     {
 254       fontMenu__handleSubmenu(currentfont,&fontCount,submenu);
 255       menuExt_submenu(fontMenu__menu,subIndex++,submenu);
 256       if (fontCount!=-1)
 257         menu_extend(fontMenu__menu,fontMenu__fontFamily(currentfont));
 258     }
 259   }
 260   fontMenu__tick1=-1;
 261   if (fontMenu__created)
 262     fontMenu_tickGivenName(lastTicked);
 263   visdelay_end();
 264   fontMenu__created=TRUE;
 265   return (fontMenu__menu);
 266 }
 267
 268 /*
 269  * menu fontMenu(BOOL includeSystem)
 270  *
 271  * Use
 272  *  Compatibility.  Don't use this function.
 273  */
 274
 275 menu fontMenu(BOOL includeSystem)
 276 {
 277   menu f=fontMenu_createFontMenu(includeSystem);
 278   if (!f)
 279     exit(0);
 280   return (f);
 281 }
 282
 283 /*
 284  * char *fontMenu_fontname(int item1,int item2)
 285  *
 286  * Use
 287  *  Returns the font name given by the the menu hit passed.  Example code:
 288  *
 289  *  switch (hit[n])
 290  *  {
 291  *    ...
 292  *    case FONTMENU:
 293  *      {
 294  *        char *fontname=fontMenu_fontname(hit[n+1],hit[n+2]);
 295  *        ...
 296  *      }
 297  *      break;
 298  *    ...
 299  *  }
 300  *
 301  *  Type promotion does the rest!  If the hits give a silly result, then a
 302  *  null string (not a null pointer!) is returned.
 303  *
 304  *  You should check for the system font yourself (hit[n+1]==1).
 305  *
 306  * Parameters
 307  *  int item1 == the item number in the main menu
 308  *  int item2 == the item number in the submenu
 309  *
 310  * Returns
 311  *  A pointer to a read-only string.
 312  */
 313
 314 char *fontMenu_fontname(int item1,int item2)
 315 {
 316   int hits[3];
 317   char *buffer=buffer_find();
 318   char *reg;
 319   if (item1==1 && item2==0 && fontMenu__includeSystem==TRUE)
 320     return (msgs_lookup("fontmSF:System font"));
 321   if (item1==-1)
 322     return ("");
 323   hits[0]=item1-1;
 324   if (item2==0)
 325     hits[1]=0;
 326   else
 327     hits[1]=item2-1;
 328   hits[2]=-1;
 329   wimpt_noerr(wimp_decode_menu
 330   (
 331     (wimp_menustr *)menu_syshandle(fontMenu__menu),
 332     hits,
 333     buffer
 334   ));
 335   utils_ctermToNterm(buffer);
 336   reg=strstr(buffer,msgs_lookup("fontmRF:(Regular)"));
 337   if (reg)
 338     *(reg-1)='\0';
 339   return (buffer);
 340 }
 341
 342 /*
 343  * void fontMenu_submenu(BOOL includeSystem)
 344  *
 345  * Use
 346  *  Opens a font menu as the submenu of another menu.
 347  *
 348  * Parameters
 349  *  BOOL includeSystem == whether we need to include a system font item.
 350  */
 351
 352 void fontMenu_submenu(BOOL includeSystem)
 353 {
 354   wimp_eventstr *e=wimpt_last_event();
 355   int x=e->data.msg.data.words[1];
 356   int y=e->data.msg.data.words[2];
 357   if
 358   (
 359     (e->e!=wimp_ESEND &&
 360     e->e!=wimp_ESENDWANTACK) ||
 361     e->data.msg.hdr.action!=wimp_MMENUWARN
 362   )
 363     return;
 364   if (win_anyWindows()==FALSE)
 365   {
 366     werr
 367     (
 368       FALSE,
 369       msgs_lookup("fontmTMWS:Too many windows - "
 370                                          "%s could not create submenu."),
 371       wimpt_programname()
 372     );
 373   }
 374   else
 375   {
 376     visdelay_begin();
 377     fontMenu(includeSystem);
 378     wimpt_noerr(wimp_create_submenu
 379     (
 380       (wimp_menustr *)menu_syshandle(fontMenu__menu),
 381       x,
 382       y
 383     ));
 384     visdelay_end();
 385   }
 386 }
 387
 388 /*
 389  * wimp_menuitem *fontMenu__menuItem(wimp_menustr *m,int item)
 390  *
 391  * Use
 392  *  Returns a pointer to the menu item given.
 393  *
 394  * Parameters
 395  *  wimp_menustr *m == the menu handle
 396  *  int item == the item number (starting at one)
 397  *
 398  * Returns
 399  *  A pointer to the correct menu item structure.
 400  */
 401
 402 static wimp_menuitem *fontMenu__menuItem(wimp_menustr *m,int item)
 403 {
 404   return ((wimp_menuitem *)(m+1)+item-1);
 405 }
 406
 407 /*
 408  * char *fontMenu__menuText(wimp_menustr *m,int item,char *buffer)
 409  *
 410  * Use
 411  *  Returns the text of a menu item.
 412  *
 413  * Parameters
 414  *  wimp_menustr *m == the menu handle
 415  *  int item == the item number (1 upwards)
 416  *  char *buffer == buffer in which to put the string
 417  *
 418  * Returns
 419  *  A pointer to the menu item's text (may or may not be in buffer)
 420  */
 421
 422 static char *fontMenu__menuText(wimp_menustr *m,int item,char *buffer)
 423 {
 424   int i;
 425   char c;
 426   wimp_menuitem *itm=fontMenu__menuItem(m,item);
 427   if (itm->iconflags & wimp_INDIRECT)
 428   {
 429     c=itm->data.indirecttext.buffer[0];
 430     for (i=0;i<254 && c>31;i++)
 431       c=buffer[i]=itm->data.indirecttext.buffer[i];
 432     buffer[i]='\0';
 433   }
 434   else
 435   {
 436     c=itm->data.text[0];
 437     for (i=0;i<=11 && c>31;i++)
 438       c=buffer[i]=itm->data.text[i];
 439     buffer[i]='\0';
 440   }
 441   return (buffer);
 442 }
 443
 444 /*
 445  * wimp_menustr *fontMenu__submenu(wimp_menustr *m,int item)
 446  *
 447  * Use
 448  *  Returns the handle of the submenu of a menu item.
 449  *
 450  * Parameters
 451  *  wimp_menustr *m == the menu handle
 452  *  int item == the item number
 453  *
 454  * Returns
 455  *  A pointer to the submenu
 456  */
 457
 458 static wimp_menustr *fontMenu__submenu(wimp_menustr *m,int item)
 459 {
 460   return (fontMenu__menuItem(m,item)->submenu);
 461 }
 462
 463 /*
 464  * void fontMenu_findFont(char *name,int *item1,int *item2)
 465  *
 466  * Use
 467  *  Finds a font in the font list.  Returns the result in two integers,
 468  *  which are the menu item numbers in the main font menu and the submenu
 469  *  respectively.  -1 is returned as the first item number if the font
 470  *  wasn't found.
 471  *
 472  * Parameters
 473  *  char *name == the (case sensitive) name of the font.
 474  *  int *item1 == where to store the first item number.
 475  *  int *item2 == where to store the second item number.
 476  */
 477
 478 void fontMenu_findFont(char *name,int *item1,int *item2)
 479 {
 480   int i=1;
 481   int j;
 482   wimp_menustr *m=menu_syshandle(fontMenu__menu);
 483   wimp_menustr *s;
 484   char *family=fontMenu__fontFamily(name);
 485   char *leaf=fontMenu__fontLeaf(name);
 486   char buffer[40];
 487   if
 488   (
 489     strcmp(name,msgs_lookup("fontmSF:System font"))==0 &&
 490     fontMenu__includeSystem==TRUE
 491   )
 492   {
 493     *item1=1;
 494     *item2=-1;
 495     return;
 496   }
 497   do
 498   {
 499     if (strcmp(fontMenu__menuText(m,i,buffer),family)==0)
 500     {
 501       s=fontMenu__submenu(m,i);
 502       j=1;
 503       do
 504       {
 505         if (strcmp(fontMenu__menuText(s,j,buffer),leaf)==0)
 506         {
 507           *item1=i;
 508           *item2=j;
 509           return;
 510         }
 511         j++;
 512       }
 513       while ((fontMenu__menuItem(s,j-1)->flags&wimp_MLAST)==0);
 514       *item1=-1;
 515       return;
 516     }
 517     i++;
 518   }
 519   while ((fontMenu__menuItem(m,i-1)->flags&wimp_MLAST)==0);
 520   *item1=-1;
 521   return;
 522 }
 523
 524 /*
 525  * void fontMenu__tickItem(wimp_menustr *m,item i,BOOL onOrOff)
 526  *
 527  * Use
 528  *  Ticks a menu item (low-level)
 529  *
 530  * Parameters
 531  *  wimp_menustr *m == the menu handle
 532  *  item i == the menu item
 533  *  BOOL onOrOff == tick is on or off
 534  */
 535
 536 static void fontMenu__tickItem(wimp_menustr *m,int i,BOOL onOrOff)
 537 {
 538   if (onOrOff)
 539     fontMenu__menuItem(m,i)->flags|=wimp_MTICK;
 540   else
 541     fontMenu__menuItem(m,i)->flags&=~wimp_MTICK;
 542 }
 543
 544 /*
 545  * void fontMenu__doTick(BOOL onOrOff)
 546  *
 547  * Use
 548  *  Ticks on or off the current font.
 549  *
 550  * Parameters
 551  *  BOOL onOrOff == whether we want to tick or untick the font.
 552  */
 553
 554 static void fontMenu__doTick(BOOL onOrOff)
 555 {
 556   wimp_menustr *m=menu_syshandle(fontMenu__menu);
 557   if (fontMenu__tick1==1 && fontMenu__tick2==-1)
 558   {
 559     fontMenu__tickItem(m,1,onOrOff);
 560   }
 561   else if (fontMenu__tick1!=-1)
 562   {
 563     fontMenu__tickItem(m,fontMenu__tick1,onOrOff);
 564     fontMenu__tickItem
 565     (
 566       fontMenu__submenu(m,fontMenu__tick1),
 567       fontMenu__tick2,
 568       onOrOff
 569     );
 570   }
 571 }
 572
 573 /*
 574  * void fontMenu_tick(int item1,int item2)
 575  *
 576  * Use
 577  *  Ticks the item specified.  Only one font may be ticked at a time.  If
 578  *  the menu item specified is silly, no item will be ticked.  No range
 579  *  checking is performed.
 580  *
 581  * Parameters
 582  *  int item1 == the item number in the main menu
 583  *  int item2 == the item number in the submenu
 584  */
 585
 586 void fontMenu_tick(int item1,int item2)
 587 {
 588   fontMenu__doTick(FALSE);
 589   fontMenu__tick1=item1;
 590   fontMenu__tick2=item2;
 591   fontMenu__doTick(TRUE);
 592 }
 593
 594 /*
 595  * void fontMenu_tickGivenName(char *name)
 596  *
 597  * Use
 598  *  Ticks the item specified by it's name.  If the name is silly, no item
 599  *  will be ticked.
 600  *
 601  * Parameters
 602  *  char *name == the font name to tick
 603  */
 604
 605 void fontMenu_tickGivenName(char *name)
 606 {
 607   int i1,i2;
 608   fontMenu_findFont(name,&i1,&i2);
 609   fontMenu_tick(i1,i2);
 610 }