workbench/c/Decoration/decoration.c

   1 /*
   2     Copyright  1995-2012, The AROS Development Team.
   3     $Id$
   4 */
   5
   6 /******************************************************************************
   7
   8     NAME
   9
  10         Decoration
  11
  12     SYNOPSIS
  13
  14         (N/A)
  15
  16     LOCATION
  17
  18         C:
  19
  20     FUNCTION
  21
  22         Allows user definable skins for the intuition windows, menus and gadgets.
  23
  24     NOTES
  25
  26         Must be launched before Wanderer - usually in the S:startup-sequence
  27
  28     BUGS
  29
  30     SEE ALSO
  31
  32         IPREFS
  33
  34     INTERNALS
  35
  36 ******************************************************************************/
  37
  38 #define DEBUG 0
  39 #include <aros/debug.h>
  40
  41 #include <clib/alib_protos.h>
  42
  43 #include <proto/exec.h>
  44 #include <proto/dos.h>
  45 #include <proto/intuition.h>
  46
  47 #include <aros/detach.h>
  48
  49 #include "windowdecorclass.h"
  50 #include "screendecorclass.h"
  51 #include "menudecorclass.h"
  52 #include "newimage.h"
  53 #include "config.h"
  54
  55 const TEXT version_string[] = "$VER: Decoration 1.5 (22.4.2012)";
  56
  57 STRPTR __detached_name = "Decorator";
  58
  59 #define MAGIC_PRIVATE_SKIN              0x0001
  60 #define MAGIC_PRIVATE_TITLECHILD        0x0F0F
  61
  62 struct DecorationDecorator
  63 {
  64     struct NewDecorator base;   /* MUST BE FIRST */
  65     struct DecorConfig * dc;
  66     struct DecorImages * di;
  67 };
  68
  69 struct  DecorationDecorator *basedecor = NULL;
  70
  71 struct SkinMessage {
  72     struct MagicMessage msg;
  73     UWORD  class;
  74     STRPTR  path;
  75     STRPTR  id;
  76 };
  77
  78 void DeleteDecorator(struct NewDecorator *nd)
  79 {
  80     if (nd == NULL) return;
  81     if (((struct DecorationDecorator *)nd)->dc != NULL) FreeConfig(((struct DecorationDecorator *)nd)->dc);
  82     if (((struct DecorationDecorator *)nd)->di != NULL) FreeImages(((struct DecorationDecorator *)nd)->di);
  83     FreeVec(nd);
  84 }
  85
  86 struct DecorationDecorator *LoadDecoration(STRPTR path)
  87 {
  88     struct DecorationDecorator * dnd = NULL;
  89     struct TagItem *screenTags, *menuTags, *windowTags;
  90
  91     D(bug("LoadDecoration: Entering\n"));
  92
  93     STRPTR newpath;
  94
  95     if (path != NULL) newpath = path; else newpath = "Theme:";
  96
  97     dnd = AllocVec(sizeof(struct DecorationDecorator), MEMF_CLEAR | MEMF_ANY);
  98
  99     D(bug("LoadDecoration: decorator @ 0x%p\n", dnd));
 100
 101     if (dnd)
 102     {
 103         dnd->dc = LoadConfig(newpath);
 104         D(bug("LoadDecoration: config @ 0x%p\n", dnd->dc));
 105         if (!dnd->dc)
 106         {
 107             DeleteDecorator(&dnd->base);
 108             return NULL;
 109         }
 110
 111         dnd->di = LoadImages(dnd->dc);
 112         D(bug("LoadDecoration: images @ 0x%p\n", dnd->di));
 113         if (!dnd->di)
 114         {
 115             DeleteDecorator(&dnd->base);
 116             return NULL;
 117         }
 118
 119         dnd->base.nd_ScreenTags = AllocVec(sizeof(struct TagItem) * 4, MEMF_CLEAR | MEMF_ANY);
 120         dnd->base.nd_MenuTags = AllocVec(sizeof(struct TagItem) * 4, MEMF_CLEAR | MEMF_ANY);
 121         dnd->base.nd_WindowTags = AllocVec(sizeof(struct TagItem) * 4, MEMF_CLEAR | MEMF_ANY);
 122
 123         if (basedecor)
 124         {
 125             D(bug("LoadDecoration: copying base classes\n"));
 126             dnd->base.nd_ScreenClass = basedecor->base.nd_ScreenClass;
 127             dnd->base.nd_MenuClass = basedecor->base.nd_MenuClass;
 128             dnd->base.nd_WindowClass = basedecor->base.nd_WindowClass;
 129         }
 130
 131         screenTags = dnd->base.nd_ScreenTags;
 132         menuTags = dnd->base.nd_MenuTags;
 133         windowTags = dnd->base.nd_WindowTags;
 134
 135         screenTags[0].ti_Tag = SDA_UserBuffer;
 136         menuTags[0].ti_Tag = MDA_UserBuffer;
 137         windowTags[0].ti_Tag = WDA_UserBuffer;
 138         screenTags[0].ti_Data = sizeof(struct ScreenData);
 139         menuTags[0].ti_Data = sizeof(struct MenuData);
 140         windowTags[0].ti_Data = sizeof(struct WindowData);
 141
 142         screenTags[1].ti_Tag = SDA_DecorImages;
 143         menuTags[1].ti_Tag = MDA_DecorImages;
 144         windowTags[1].ti_Tag = WDA_DecorImages;
 145         screenTags[1].ti_Data = (IPTR)dnd->di;
 146         menuTags[1].ti_Data = (IPTR)dnd->di;
 147         windowTags[1].ti_Data = (IPTR)dnd->di;
 148
 149         screenTags[2].ti_Tag =  SDA_DecorConfig;
 150         menuTags[2].ti_Tag = MDA_DecorConfig;
 151         windowTags[2].ti_Tag = WDA_DecorConfig;
 152         screenTags[2].ti_Data = (IPTR)dnd->dc;
 153         menuTags[2].ti_Data = (IPTR)dnd->dc;
 154         windowTags[2].ti_Data = (IPTR)dnd->dc;
 155
 156         screenTags[3].ti_Tag = TAG_DONE;
 157         menuTags[3].ti_Tag = TAG_DONE;
 158         windowTags[3].ti_Tag = TAG_DONE;
 159
 160     }
 161     return dnd;
 162 }
 163
 164 #define ARGUMENT_TEMPLATE "PATH,SCREENID=ID/K"
 165
 166 char usage[] =
 167     "Decoration:\n"
 168     "Arguments:\n";
 169
 170 int main(void)
 171 {
 172     struct  NewDecorator *decor;
 173     struct MsgPort *port;
 174
 175     IPTR rd_Args[] = {0, 0, };
 176
 177     struct RDArgs *args, *newargs;
 178
 179     /* the 1M $$ Question why "Decoration ?" does not work in the shell? */
 180
 181     newargs = (struct RDArgs*) AllocDosObject(DOS_RDARGS, NULL);
 182
 183     if (newargs == NULL) return 0;
 184
 185     newargs->RDA_ExtHelp = usage;
 186     newargs->RDA_Flags = 0;
 187
 188     args = ReadArgs(ARGUMENT_TEMPLATE, rd_Args, newargs);
 189
 190     if (args == NULL) {
 191         FreeDosObject (DOS_RDARGS, (APTR) newargs);
 192         return 0;
 193     }
 194
 195     if ((port = CreateMsgPort()) == NULL)
 196         return 0;
 197
 198     Forbid();
 199     if (FindPort(__detached_name)) {
 200         struct SkinMessage msg;
 201         msg.msg.mn_ReplyPort = port;
 202         msg.msg.mn_Magic = MAGIC_PRIVATE_SKIN;
 203         msg.class = 0;
 204         msg.path = (STRPTR) rd_Args[0];
 205         msg.id = (STRPTR) rd_Args[1];
 206         PutMsg(FindPort(__detached_name), (struct Message *) &msg);
 207         WaitPort(port);
 208         GetMsg(port);
 209         Permit();
 210         DeleteMsgPort(port);
 211         FreeArgs(args);
 212         return 0;
 213     }
 214     Permit();
 215
 216     D(bug("Decoration: making classes...\n"));
 217
 218     if ((basedecor = LoadDecoration((STRPTR) rd_Args[0])) != NULL)
 219     {
 220         decor = &basedecor->base;
 221         if ((basedecor->base.nd_ScreenClass = MakeScreenDecorClass()) != NULL)
 222         {
 223             if ((basedecor->base.nd_MenuClass = MakeMenuDecorClass()) != NULL)
 224             {
 225                 if ((basedecor->base.nd_WindowClass = MakeWindowDecorClass()) != NULL)
 226                 {
 227                     D(bug("Decoration: Classes made (screen @ 0x%p, menu @ 0x%p, win @ 0x%p)\n", basedecor->base.nd_ScreenClass, basedecor->base.nd_MenuClass, basedecor->base.nd_WindowClass));
 228
 229                     ULONG  skinSignal = 1 << port->mp_SigBit;
 230                     port->mp_Node.ln_Name=__detached_name;
 231                     AddPort(port);
 232
 233                     D(bug("Decoration: Port created and added\n"));
 234
 235                     D(bug("Decoration: Got decorator\n"));
 236
 237                     if (decor != NULL)
 238                     {
 239                         decor->nd_Pattern = (STRPTR) rd_Args[1];
 240                         decor->nd_Port = port;
 241                         ChangeDecoration(DECORATION_SET, decor);
 242                     }
 243
 244                     D(bug("Before Detach()\n"));
 245
 246                     Detach();
 247
 248                     D(bug("After Detach()\n"));
 249
 250                     BOOL running = TRUE;
 251
 252                     while (running)
 253                     {
 254                         ULONG sigs = Wait(SIGBREAKF_CTRL_C | skinSignal);
 255                         if ((sigs & SIGBREAKF_CTRL_C) != 0)
 256                         {
 257                             //       running = FALSE; /* at the moment no exit */
 258                         }
 259                         else if ((sigs & skinSignal) != 0)
 260                         {
 261                             struct DecoratorMessage *dmsg;
 262                             struct SkinMessage * msg = (struct SkinMessage *) GetMsg(port);
 263                             while (msg)
 264                             {
 265                                 switch(msg->msg.mn_Magic)
 266                                 {
 267                                     case MAGIC_PRIVATE_TITLECHILD:
 268                                         dmsg = (struct DecoratorMessage *) msg;
 269                                         if (decor)
 270                                         {
 271                                             SetAttrs((Object *)*((Object **)((IPTR)dmsg->dm_Class + (IPTR)decor->nd_ScreenObjOffset)), SDA_TitleChild, dmsg->dm_Object, TAG_DONE);
 272                                         }
 273                                         break;
 274                                     case MAGIC_PRIVATE_SKIN:
 275                                         decor = (struct NewDecorator *)LoadDecoration(msg->path);
 276                                         if (decor != NULL)
 277                                         {
 278                                             decor->nd_Pattern = msg->id;
 279                                             decor->nd_Port = port;
 280                                             ChangeDecoration(DECORATION_SET, decor);
 281                                         }
 282                                         break;
 283                                     case MAGIC_DECORATOR:
 284                                         dmsg = (struct DecoratorMessage *) msg;
 285                                         DeleteDecorator((struct NewDecorator *) dmsg->dm_Object);
 286                                         break;
 287                                 }
 288                                 ReplyMsg((struct Message *) msg);
 289                                 msg = (struct SkinMessage *) GetMsg(port);
 290                             }
 291                         }
 292                     }
 293                     FreeClass(decor->nd_WindowClass);
 294                 }
 295                 FreeClass(decor->nd_MenuClass);
 296             }
 297             FreeClass(decor->nd_ScreenClass);
 298         }
 299     }
 300     FreeDosObject (DOS_RDARGS, (APTR) newargs);
 301     FreeArgs(args);
 302     return 0;
 303 }