workbench/system/Wanderer/iconwindowbackfill.c

   1 /*
   2   Copyright  2004-2008, The AROS Development Team. All rights reserved.
   3   $Id$
   4 */
   5
   6 #include "portable_macros.h"
   7
   8 #ifdef __AROS__
   9 #define MUIMASTER_YES_INLINE_STDARG
  10 #endif
  11
  12 #define WANDERER_MODULE_BACKFILL_ENABLED
  13
  14 #ifdef __AROS__
  15 #define DEBUG 0
  16 #include <aros/debug.h>
  17 #endif
  18
  19 #include <exec/types.h>
  20 #include <libraries/mui.h>
  21
  22 #ifdef __AROS__
  23 #include <zune/customclasses.h>
  24 #else
  25 #include <zune_AROS/customclasses.h>
  26 #endif
  27
  28
  29 #include <proto/utility.h>
  30
  31 #include <proto/graphics.h>
  32
  33 #include <proto/exec.h>
  34 #include <proto/datatypes.h>
  35
  36 #include <dos/dos.h>
  37 #include <proto/dos.h>
  38
  39 #include <stdio.h>
  40 #include <string.h>
  41
  42 #include <intuition/screens.h>
  43 #include <datatypes/pictureclass.h>
  44 #include <clib/macros.h>
  45
  46 #ifdef __AROS__
  47 #include <clib/alib_protos.h>
  48 #endif
  49
  50 #include <graphics/scale.h>
  51
  52 #ifdef __AROS__
  53 #include <prefs/wanderer.h>
  54 #else
  55 #include <prefs_AROS/wanderer.h>
  56 #endif
  57
  58 #if defined(__AMIGA__) && !defined(__PPC__)
  59 #define NO_INLINE_STDARG
  60 #endif
  61 #ifndef _PROTO_INTUITION_H
  62 #include <proto/intuition.h>
  63 #endif
  64 #include <proto/muimaster.h>
  65
  66 #include "wanderer.h"
  67 #include "wandererprefs.h"
  68 #include "iconwindow.h"
  69 #include "iconwindow_iconlist.h"
  70 #include "iconwindowbackfill.h"
  71 #include "Classes/iconlistview.h"
  72 #include "Classes/iconlist_attributes.h"
  73
  74
  75 #ifndef __AROS__
  76 #define DEBUG 1
  77
  78 #ifdef DEBUG
  79   #define D(x) if (DEBUG) x
  80   #ifdef __amigaos4__
  81   #define bug DebugPrintF
  82   #else
  83   #define bug kprintf
  84   #endif
  85 #else
  86   #define  D(...)
  87 #endif
  88 #endif
  89
  90 /*** Global Data **********************************************************/
  91
  92 static struct IconWindow_BackFill_Descriptor   image_backfill_descriptor;
  93 static char                                  image_backfill_name[] = "Default Image BackFill\0";
  94 static struct List                             image_backfill_images;
  95
  96 /*** Internal functions *********************************************************/
  97
  98 ///ImageBackFill_FindSourceRecord()
  99 static struct BackFillSourceImageRecord *ImageBackFill_FindSourceRecord(char *source_name, IPTR source_mode)
 100 {
 101   struct BackFillSourceImageRecord *source_record = NULL;
 102   #ifdef __AROS__
 103   ForeachNode(&image_backfill_images, source_record)
 104   #else
 105   Foreach_Node(&image_backfill_images, source_record);
 106   #endif
 107   {
 108     if ((strcmp(source_record->bfsir_SourceImage, source_name)==0) && (source_record->bfsir_BackGroundRenderMode == source_mode)) return source_record;
 109   }
 110   return NULL;
 111 }
 112 ///
 113
 114 ///ImageBackFill_FindBufferRecord()
 115 static struct BackFillSourceImageBuffer *ImageBackFill_FindBufferRecord(struct BackFillSourceImageRecord *source_record, WORD buffer_width, WORD buffer_height)
 116 {
 117   struct BackFillSourceImageBuffer *buffer_record = NULL;
 118
 119   #ifdef __AROS__
 120   ForeachNode(&source_record->bfsir_Buffers, buffer_record)
 121   #else
 122   Foreach_Node(&source_record->bfsir_Buffers, buffer_record);
 123   #endif
 124   {
 125     if ((buffer_record->bfsib_BitMapWidth == buffer_width) && (buffer_record->bfsib_BitMapHeight == buffer_height)) return buffer_record;
 126   }
 127   return NULL;
 128 }
 129 ///
 130
 131 ///ImageBackFill_CloseSourceRecord()
 132 static void ImageBackFill_CloseSourceRecord(struct BackFillSourceImageRecord *this_Record)
 133 {
 134   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceRecord()\n"));
 135   if (this_Record->bfsir_OpenerCount >= 2)
 136   {
 137     this_Record->bfsir_OpenerCount -= 1;
 138     D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceRecord: %d Openers Remaining for '%s'\n", this_Record->bfsir_OpenerCount, this_Record->bfsir_SourceImage));
 139     return;
 140   }
 141   else
 142   {
 143     Remove((struct Node *)this_Record);
 144     this_Record->bfsir_OpenerCount = 0;
 145
 146     D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceRecord: Closing Record for '%s'\n", this_Record->bfsir_SourceImage));
 147
 148     this_Record->bfsir_DTRastPort->BitMap = NULL;
 149     FreeRastPort(this_Record->bfsir_DTRastPort);
 150     DisposeDTObject(this_Record->bfsir_DTPictureObject);
 151     FreeVec(this_Record->bfsir_SourceImage);
 152     FreeMem(this_Record, sizeof(struct BackFillSourceImageRecord));
 153   }
 154 }
 155 ///
 156
 157 ///ImageBackFill_CloseSourceBuffer()
 158 static void ImageBackFill_CloseSourceBuffer(struct BackFillSourceImageRecord *this_Record, struct BackFillSourceImageBuffer *this_Buffer)
 159 {
 160   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceBuffer()\n"));
 161   if (this_Buffer->bfsib_OpenerCount >= 2)
 162   {
 163     this_Buffer->bfsib_OpenerCount -= 1;
 164     D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceBuffer: %d Openers Remaining\n", this_Buffer->bfsib_OpenerCount));
 165     return;
 166   }
 167   else
 168   {
 169     Remove((struct Node *)this_Buffer);
 170     this_Buffer->bfsib_OpenerCount = 0;
 171     D(bug("[IconWindow.ImageBackFill] ImageBackFill_CloseSourceBuffer: Closing Buffer [%d x %d] of '%s'\n", this_Buffer->bfsib_BitMapWidth, this_Buffer->bfsib_BitMapHeight, this_Record->bfsir_SourceImage));
 172
 173     this_Buffer->bfsib_BitMapRastPort->BitMap = NULL;
 174     FreeRastPort(this_Buffer->bfsib_BitMapRastPort);
 175     FreeBitMap(this_Buffer->bfsib_BitMap);
 176     FreeMem(this_Buffer, sizeof(struct BackFillSourceImageBuffer));
 177   }
 178 }
 179 ///
 180
 181 ///ImageBackFill_CopyScaledBitMap()
 182 static void ImageBackFill_CopyScaledBitMap
 183 (
 184   struct RastPort *SrcRast,
 185   WORD SrcOffsetX, WORD SrcOffsetY,
 186   WORD SrcSizeX, WORD SrcSizeY,
 187   struct RastPort *DstRast,
 188   struct Rectangle *DstAreaBounds,
 189   struct Rectangle *DstFillBounds,
 190   ULONG blit_MODE
 191 )
 192 {
 193   struct BitScaleArgs   Scale_Args;
 194 D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyScaledBitMap()\n"));
 195
 196   Scale_Args.bsa_SrcX = SrcOffsetX;
 197   Scale_Args.bsa_SrcY = SrcOffsetY;
 198   Scale_Args.bsa_SrcWidth = SrcSizeX;
 199   Scale_Args.bsa_SrcHeight = SrcSizeY;
 200   Scale_Args.bsa_XSrcFactor = SrcSizeX;
 201   Scale_Args.bsa_YSrcFactor = SrcSizeY;
 202   Scale_Args.bsa_DestX = DstFillBounds->MinX;
 203   Scale_Args.bsa_DestY = DstFillBounds->MinY;
 204   Scale_Args.bsa_XDestFactor = (DstFillBounds->MaxX - DstFillBounds->MinX) + 1;
 205   Scale_Args.bsa_YDestFactor = (DstFillBounds->MaxY - DstFillBounds->MinY) + 1;
 206
 207   Scale_Args.bsa_SrcBitMap = SrcRast->BitMap;
 208   Scale_Args.bsa_DestBitMap = DstRast->BitMap;
 209
 210   BitMapScale(&Scale_Args);
 211 }
 212 ///
 213
 214 ///ImageBackFill_CopyTiledBitMap()
 215 static void ImageBackFill_CopyTiledBitMap
 216 (
 217   struct RastPort *SrcRast,
 218   WORD SrcOffsetX, WORD SrcOffsetY,
 219   WORD SrcSizeX, WORD SrcSizeY,
 220   struct RastPort *DstRast,
 221   struct Rectangle *DstAreaBounds,
 222   struct Rectangle *DstFillBounds,
 223   ULONG blit_MODE
 224 )
 225 {
 226
 227   WORD FirstSizeX;  // the width of the rectangle to blit as the first column
 228   WORD FirstSizeY;  // the height of the rectangle to blit as the first row
 229   WORD SecondMinX;  // the left edge of the second column
 230   WORD SecondMinY;  // the top edge of the second column
 231   WORD SecondSizeX; // the width of the second column
 232   WORD SecondSizeY; // the height of the second column
 233   WORD PosX, PosY;         // used as starting position in the "exponential" blit
 234   WORD SizeX, SizeY;        // used as bitmap size in the "exponential" blit
 235   WORD SrcX, SrcY;        // used as bitmap size in the "exponential" blit
 236
 237   struct BitMap *Src = SrcRast->BitMap;
 238   struct BitMap *Dst = DstRast->BitMap;
 239
 240   #if defined(DEBUG)
 241   int xcount;
 242   int ycount;
 243   #endif
 244
 245
 246 D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap(mode %d)\n", blit_MODE));
 247
 248   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: SrcRast @ %x, DstRast @ %x\n", SrcRast, DstRast));
 249
 250   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds @ %x, FillBounds @ %x\n", DstAreaBounds, DstFillBounds));
 251
 252   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds.MinX %d\n", DstAreaBounds->MinX));
 253   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds.MinY %d\n", DstAreaBounds->MinY));
 254   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds.MaxX %d\n", DstAreaBounds->MaxX));
 255   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds.MaxY %d\n", DstAreaBounds->MaxY));
 256   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: AreaBounds Width %d Height %d\n", (DstAreaBounds->MaxX - DstAreaBounds->MinX) + 1, (DstAreaBounds->MaxY - DstAreaBounds->MinY) + 1));
 257
 258   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: FillBounds.MinX %d\n", DstFillBounds->MinX));
 259   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: FillBounds.MinY %d\n", DstFillBounds->MinY));
 260   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: FillBounds.MaxX %d\n", DstFillBounds->MaxX));
 261   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: FillBounds.MaxY %d\n", DstFillBounds->MaxY));
 262   D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: FillBounds Width %d Height %d\n", (DstAreaBounds->MaxX - DstAreaBounds->MinX) + 1, (DstAreaBounds->MaxY - DstAreaBounds->MinY) + 1));
 263
 264   FirstSizeX = MIN(SrcSizeX - SrcOffsetX, RECTSIZEX(DstFillBounds)); // the width of the first tile, this is either the rest of the tile right to SrcOffsetX or the width of the dest rect, if the rect is narrow
 265   SecondMinX = DstFillBounds->MinX + FirstSizeX; // the start for the second tile (if used)
 266   SecondSizeX = MIN(SrcOffsetX, DstFillBounds->MaxX-SecondMinX + 1); // the width of the second tile (we want the whole tile to be SrcSizeX pixels wide, if we use SrcSizeX-SrcOffsetX pixels for the left part we'll use SrcOffsetX for the right part)
 267
 268   FirstSizeY = MIN(SrcSizeY - SrcOffsetY, RECTSIZEY(DstFillBounds)); // the same values are calculated for y direction
 269   SecondMinY = DstFillBounds->MinY + FirstSizeY;
 270   SecondSizeY = MIN(SrcOffsetY, DstFillBounds->MaxY - SecondMinY + 1);
 271
 272   if (blit_MODE == blit_MODE_Blit)  // blit the first piece of the tile
 273   {
 274     D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: 1st Tile Part @ %d,%d [%d x %d]\n", DstFillBounds->MinX, DstFillBounds->MinY, FirstSizeX, FirstSizeY));
 275     BltBitMap(Src,
 276         SrcOffsetX, SrcOffsetY,
 277         Dst,
 278         DstFillBounds->MinX, DstFillBounds->MinY,
 279         FirstSizeX, FirstSizeY,
 280         0xC0, -1, NULL);
 281
 282
 283     if (SecondSizeX > 0) // if SrcOffset was 0 or the dest rect was too narrow, we won't need a second column
 284     {
 285       D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: 2nd Tile Part @ %d,%d [%d x %d]\n", SecondMinX, DstFillBounds->MinY, SecondSizeX, FirstSizeY));
 286       BltBitMap(Src,
 287             0, SrcOffsetY,
 288             Dst,
 289             SecondMinX, DstFillBounds->MinY,
 290             SecondSizeX, FirstSizeY,
 291             0xC0, -1, NULL);
 292     }
 293
 294     if (SecondSizeY > 0) // is a second row necessary?
 295     {
 296       D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: 3rd Tile Part @ %d,%d [%d x %d]\n", DstFillBounds->MinX, SecondMinY, FirstSizeX, SecondSizeY));
 297       BltBitMap(Src,
 298             SrcOffsetX, 0,
 299             Dst,
 300             DstFillBounds->MinX, SecondMinY,
 301             FirstSizeX, SecondSizeY,
 302             0xC0, -1, NULL);
 303
 304       if (SecondSizeX > 0)
 305       {
 306         D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: 4th Tile Part @ %d,%d [%d x %d]\n", SecondMinX, SecondMinY, SecondSizeX, SecondSizeY));
 307         BltBitMap(Src,
 308             0, 0,
 309             Dst,
 310             SecondMinX, SecondMinY,
 311             SecondSizeX, SecondSizeY,
 312             0xC0, -1, NULL);
 313       }
 314     }
 315
 316 #if defined(DEBUG)
 317     xcount = 2;
 318 #endif
 319     //Generates the first row of the tiles ....
 320     for (PosX = DstFillBounds->MinX + SrcSizeX, SizeX = MIN(SrcSizeX, (DstFillBounds->MaxX - PosX) + 1);PosX <= DstFillBounds->MaxX;)
 321     {
 322 #if defined(DEBUG)
 323       D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: Row 1 Tile %d @ %d,%d [%d x %d]\n", xcount, PosX, DstFillBounds->MinY, SizeX, MIN(SrcSizeY, RECTSIZEY(DstFillBounds))));
 324       xcount++;
 325 #endif
 326       BltBitMap(Dst,
 327           DstFillBounds->MinX, DstFillBounds->MinY,
 328           Dst,
 329           PosX, DstFillBounds->MinY,
 330           SizeX, MIN(SrcSizeY, RECTSIZEY(DstFillBounds)),
 331           0xC0, -1, NULL);
 332
 333       PosX += SizeX;
 334       SizeX = MIN(SrcSizeX, (DstFillBounds->MaxX - PosX) + 1);
 335     }
 336
 337 #if defined(DEBUG)
 338     ycount = 2;
 339 #endif
 340     // .. now Blit the first row down several times to fill the whole dest rect
 341     for (PosY = DstFillBounds->MinY + SrcSizeY, SizeY = MIN(SrcSizeY, (DstFillBounds->MaxY - PosY) + 1);PosY <= DstFillBounds->MaxY;)
 342     {
 343 #if defined(DEBUG)
 344       D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: Row %d @ %d,%d [%d x %d]\n", ycount, DstFillBounds->MinX, PosY, MIN(SrcSizeX, RECTSIZEX(DstFillBounds)), SizeY));
 345       ycount++;
 346 #endif
 347       BltBitMap(Dst,
 348             DstFillBounds->MinX, DstFillBounds->MinY,
 349             Dst,
 350             DstFillBounds->MinX, PosY,
 351             MIN(SrcSizeX, RECTSIZEX(DstFillBounds)), SizeY,
 352             0xC0, -1, NULL);
 353
 354       PosY += SizeY;
 355       SizeY = MIN(SrcSizeY, (DstFillBounds->MaxY - PosY) + 1);
 356     }
 357   }
 358   else if (blit_MODE == blit_MODE_Clip)
 359   {
 360     for (SrcY = MOD(SrcOffsetY + MOD((DstFillBounds->MinY - DstAreaBounds->MinY), SrcSizeY - 1), SrcSizeY - 1), PosY = DstFillBounds->MinY, SizeY = MIN((SrcSizeY - SrcY), (DstFillBounds->MaxY - DstFillBounds->MinY ) + 1); PosY <= DstFillBounds->MaxY;)
 361     {
 362       for (SrcX = MOD(SrcOffsetX + MOD((DstFillBounds->MinX - DstAreaBounds->MinX), SrcSizeY - 1), SrcSizeX - 1), PosX = DstFillBounds->MinX, SizeX = MIN((SrcSizeX - SrcX), (DstFillBounds->MaxX - DstFillBounds->MinX ) + 1); PosX <= DstFillBounds->MaxX;)
 363       {
 364         D(bug("[IconWindow.ImageBackFill] ImageBackFill_CopyTiledBitMap: ClipBlit @ %d,%d [%d x %d]\n", PosX, PosY, SizeX, SizeY));
 365
 366         ClipBlit(SrcRast,
 367           SrcX, SrcY,
 368           DstRast,
 369           PosX, PosY,
 370           SizeX, SizeY,
 371           0xC0);
 372
 373         if (SrcX != 0) SrcX = 0;
 374
 375         PosX += SizeX;
 376         SizeX = MIN(SrcSizeX, (DstFillBounds->MaxX - PosX) + 1);
 377       }
 378
 379       if (SrcY != 0) SrcY = 0;
 380
 381       PosY += SizeY;
 382       SizeY = MIN(SrcSizeY, (DstFillBounds->MaxY - PosY) + 1);
 383     }
 384   }
 385 }
 386 ///
 387
 388 /*** Methods ****************************************************************/
 389 ///ImageBackFill__MUIM_IconWindow_BackFill_ProcessBackground()
 390 IPTR ImageBackFill__MUIM_IconWindow_BackFill_ProcessBackground
 391 (
 392   Class *CLASS, Object *self, struct MUIP_IconWindow_BackFill_ProcessBackground *message
 393 )
 394 {
 395
 396   LONG        Depth = 0;
 397   Object      *_IconWindows_PrefsObj    = NULL,
 398               *_IconWindows_WindowObj   = NULL;
 399   Object      *_IconWindows_IconListObj = NULL;
 400
 401   BOOL        options_changed = FALSE;
 402
 403   IPTR        prefs_processing        = 0;
 404
 405   IPTR        BackGround_Attrib       = 0,
 406               BackGround_Base         = 0,
 407               BackGround_RenderMode   = 0,
 408               BackGround_TileMode     = 0,
 409               BackGround_XOffset      = 0,
 410               BackGround_YOffset      = 0;
 411
 412   struct BackFillInfo   *this_BFI =(struct BackFillInfo   *) message->BackFill_Data;
 413
 414   UBYTE                  *this_bgtype;
 415   char                  *this_ImageName;
 416
 417   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground()\n"));
 418
 419   GET(_app(self), MUIA_Wanderer_Prefs, &_IconWindows_PrefsObj);
 420
 421   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: PrefsObj @ %x\n", _IconWindows_PrefsObj));
 422
 423   GET(self, MUIA_IconWindow_Window, &_IconWindows_WindowObj);
 424   GET(self, MUIA_IconWindow_IconList, &_IconWindows_IconListObj);
 425
 426   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: MUIA_IconWindow_Window = %x\n", _IconWindows_WindowObj));
 427
 428   if ((_IconWindows_PrefsObj == NULL) || (_IconWindows_WindowObj == NULL) || (_IconWindows_IconListObj == NULL)) return FALSE;
 429
 430   GET(_IconWindows_PrefsObj, MUIA_WandererPrefs_Processing, &prefs_processing);
 431
 432 #if defined(DEBUG)
 433   if (prefs_processing)
 434   {
 435     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Wanderer Prefs (re)loading detected\n"));
 436   }
 437 #endif
 438
 439   GET(_IconWindows_WindowObj, MUIA_IconWindow_BackgroundAttrib, &BackGround_Attrib);
 440
 441   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Background Attrib = '%s'\n", BackGround_Attrib));
 442
 443   if (BackGround_Attrib == (IPTR) NULL) return FALSE;
 444
 445   if ((BackGround_Base = DoMethod(_IconWindows_PrefsObj, MUIM_WandererPrefs_ViewSettings_GetAttribute,
 446                   BackGround_Attrib, MUIA_Background)) == -1)
 447     return FALSE;
 448
 449   if ((BackGround_RenderMode = DoMethod(_IconWindows_PrefsObj, MUIM_WandererPrefs_ViewSettings_GetAttribute,
 450                   BackGround_Attrib, MUIA_IconWindowExt_ImageBackFill_BGRenderMode)) == -1)
 451     BackGround_RenderMode = IconWindowExt_ImageBackFill_RenderMode_Tiled;
 452
 453   this_bgtype    = (UBYTE *)BackGround_Base;
 454   this_ImageName = (char *)(BackGround_Base + 2);
 455
 456   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: BackFillInfo @ %x\n", this_BFI));
 457   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Background '%s', mode %d\n", BackGround_Base, BackGround_RenderMode));
 458
 459   if ((this_bgtype[0] - 48) != 5)
 460   {
 461     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Background is NOT an image - letting our windoclass handle it ..\n"));
 462
 463     goto pb_cleanup_buffer;
 464   }
 465
 466   GET(self, MUIA_Window_Screen, &this_BFI->bfi_Screen);
 467   GET(_IconWindows_IconListObj, MUIA_IconList_BufferRastport, &this_BFI->bfi_RastPort);
 468
 469   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Wanderers Screen @ %x, Using RastPort @ %x\n", this_BFI->bfi_Screen, this_BFI->bfi_RastPort));
 470
 471   if (this_BFI->bfi_Source)
 472   {
 473     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: BackFillInfo has existing source record @ %x\n", this_BFI->bfi_Source));
 474     if ((strcmp(this_BFI->bfi_Source->bfsir_SourceImage, this_ImageName) == 0) && (this_BFI->bfi_Source->bfsir_BackGroundRenderMode == BackGround_RenderMode))
 475     {
 476       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: existing BackFillInfo Using the same background / mode\n"));
 477       goto check_imagebuffer;
 478     }
 479     else
 480     {
 481       if (this_BFI->bfi_Buffer)
 482       {
 483         ImageBackFill_CloseSourceBuffer(this_BFI->bfi_Source, this_BFI->bfi_Buffer);
 484         this_BFI->bfi_Buffer = NULL;
 485       }
 486       ImageBackFill_CloseSourceRecord(this_BFI->bfi_Source);
 487       this_BFI->bfi_Source = NULL;
 488     }
 489   }
 490
 491   if (!(this_BFI->bfi_Source)) this_BFI->bfi_Source = ImageBackFill_FindSourceRecord(this_ImageName, BackGround_RenderMode);
 492
 493   if (!(this_BFI->bfi_Source))
 494   {
 495     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Creating NEW ImageSource Record\n"));
 496     if (!(this_BFI->bfi_Source = AllocMem(sizeof(struct BackFillSourceImageRecord), MEMF_CLEAR|MEMF_PUBLIC)))
 497     {
 498       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Couldnt allocate enough mem for source record!\n"));
 499       return FALSE;
 500     }
 501
 502     if (!(this_BFI->bfi_Source->bfsir_SourceImage = AllocVec(strlen(this_ImageName) +1, MEMF_CLEAR|MEMF_PUBLIC)))
 503     {
 504       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Couldnt allocate enough mem for source image name store\n"));
 505       FreeMem(this_BFI->bfi_Source, sizeof(struct BackFillSourceImageRecord));
 506       return FALSE;
 507     }
 508     strcpy(this_BFI->bfi_Source->bfsir_SourceImage, this_ImageName);
 509
 510     if ((this_BFI->bfi_Source->bfsir_DTPictureObject = NewDTObject(this_BFI->bfi_Source->bfsir_SourceImage,
 511                           DTA_SourceType,         DTST_FILE,
 512                           DTA_GroupID,            GID_PICTURE,
 513                           PDTA_DestMode,          PMODE_V43,
 514                           PDTA_Remap,             TRUE,
 515                           PDTA_Screen,            this_BFI->bfi_Screen,
 516                           PDTA_FreeSourceBitMap,  TRUE,
 517                           OBP_Precision,          PRECISION_IMAGE,
 518                           TAG_DONE)))
 519     {
 520       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Opened Datatype Object @ %x for image '%s'\n", this_BFI->bfi_Source->bfsir_DTPictureObject, this_BFI->bfi_Source->bfsir_SourceImage));
 521       if (DoMethod(this_BFI->bfi_Source->bfsir_DTPictureObject, DTM_PROCLAYOUT, NULL, 1))
 522       {
 523         D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Caused Datatype Object LAYOUT\n"));
 524
 525         GetDTAttrs(this_BFI->bfi_Source->bfsir_DTPictureObject, PDTA_BitMapHeader, &this_BFI->bfi_Source->bfsir_DTBitMapHeader, TAG_DONE);
 526         GetDTAttrs(this_BFI->bfi_Source->bfsir_DTPictureObject, PDTA_DestBitMap, &this_BFI->bfi_Source->bfsir_DTBitMap, TAG_DONE);
 527
 528         if (!this_BFI->bfi_Source->bfsir_DTBitMap)
 529           GetDTAttrs(this_BFI->bfi_Source->bfsir_DTPictureObject, PDTA_BitMap, &this_BFI->bfi_Source->bfsir_DTBitMap, TAG_DONE);
 530
 531         if (this_BFI->bfi_Source->bfsir_DTBitMap)
 532         {
 533           D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Datatype Object BitMap @ %x\n", this_BFI->bfi_Source->bfsir_DTBitMap));
 534
 535           if ((this_BFI->bfi_Source->bfsir_DTRastPort = CreateRastPort()))
 536           {
 537             this_BFI->bfi_Source->bfsir_DTRastPort->BitMap = this_BFI->bfi_Source->bfsir_DTBitMap;
 538             this_BFI->bfi_Source->bfsir_BackGroundRenderMode = BackGround_RenderMode;
 539             this_BFI->bfi_Source->bfsir_OpenerCount = 0x01;
 540
 541             NewList(&this_BFI->bfi_Source->bfsir_Buffers);
 542
 543             AddTail(&image_backfill_images, &this_BFI->bfi_Source->bfsir_Node);
 544             goto check_imagebuffer;
 545           }
 546         }
 547         /* Failed to obtain datatype object's BM */
 548       }
 549       /* Failed to Layout datatype object */
 550     }
 551     /* Failed to open datatype object */
 552 #if defined(DEBUG)
 553     if (!this_BFI->bfi_Source->bfsir_DTRastPort)
 554     {
 555       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Failed to create ImageSource RastPort\n"));
 556     }
 557 #endif
 558
 559     if (this_BFI->bfi_Source->bfsir_DTBitMap)
 560     {
 561       FreeBitMap(this_BFI->bfi_Source->bfsir_DTBitMap);
 562       this_BFI->bfi_Source->bfsir_DTBitMap = NULL;
 563     }
 564 #if defined(DEBUG)
 565     else
 566     {
 567       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Failed to create ImageSource BitMap\n"));
 568     }
 569 #endif
 570
 571     if (this_BFI->bfi_Source->bfsir_DTPictureObject)
 572     {
 573       DisposeDTObject(this_BFI->bfi_Source->bfsir_DTPictureObject);
 574       this_BFI->bfi_Source->bfsir_DTPictureObject = NULL;
 575     }
 576 #if defined(DEBUG)
 577     else
 578     {
 579       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Failed to create ImageSource Datatype Object\n"));
 580     }
 581 #endif
 582     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Failed to create ImageSource Record\n"));
 583     if (this_BFI->bfi_Source->bfsir_SourceImage) FreeVec(this_BFI->bfi_Source->bfsir_SourceImage);
 584     FreeMem(this_BFI->bfi_Source, sizeof(struct BackFillSourceImageRecord));
 585     this_BFI->bfi_Source = NULL;
 586     return FALSE;
 587   }
 588   else
 589   {
 590     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Using existing ImageSource Record\n"));
 591     this_BFI->bfi_Source->bfsir_OpenerCount += 1;
 592   }
 593
 594 check_imagebuffer:
 595
 596   Depth = GetBitMapAttr(this_BFI->bfi_Source->bfsir_DTBitMap, BMA_DEPTH);
 597   this_BFI->bfi_CopyWidth = this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Width;
 598   this_BFI->bfi_CopyHeight = this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Height;
 599
 600   switch (BackGround_RenderMode)
 601   {
 602     case IconWindowExt_ImageBackFill_RenderMode_Scale:
 603     {
 604       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED mode\n"));
 605
 606       this_BFI->bfi_Options.bfo_TileMode = IconWindowExt_ImageBackFill_TileMode_Fixed;
 607
 608       SET(_IconWindows_IconListObj, MUIA_IconListview_FixedBackground, TRUE);
 609       SET(_IconWindows_IconListObj, MUIA_IconListview_ScaledBackground, TRUE);
 610
 611       if ((BOOL)XGET(self, MUIA_IconWindow_IsRoot))
 612       {
 613         struct BackFillSourceImageBuffer *this_Buffer;
 614         D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Root Window = TRUE!\n"));
 615         this_BFI->bfi_CopyWidth = GetBitMapAttr(this_BFI->bfi_Screen->RastPort.BitMap, BMA_WIDTH);
 616         this_BFI->bfi_CopyHeight = GetBitMapAttr(this_BFI->bfi_Screen->RastPort.BitMap, BMA_HEIGHT);
 617
 618         D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Base Dimensions (%d x %d)\n", this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight));
 619
 620         if (!((BOOL)XGET(self, MUIA_IconWindow_IsBackdrop)))
 621         {
 622           D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Adjusting for window border Dimensions ..\n"));
 623           D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED -      WBorTop %d, WBorLeft %d, WBorRight %d, WBorBottom %d\n", this_BFI->bfi_Screen->WBorTop, this_BFI->bfi_Screen->WBorLeft, this_BFI->bfi_Screen->WBorRight, this_BFI->bfi_Screen->WBorBottom));
 624           this_BFI->bfi_CopyWidth -= (this_BFI->bfi_Screen->WBorLeft + this_BFI->bfi_Screen->WBorRight);
 625           this_BFI->bfi_CopyHeight -= (this_BFI->bfi_Screen->WBorTop + this_BFI->bfi_Screen->WBorBottom);;
 626         }
 627
 628         this_BFI->bfi_CopyHeight -= (this_BFI->bfi_Screen->BarHeight + 1);
 629
 630         this_Buffer = NULL;
 631
 632         if (this_BFI->bfi_Buffer)
 633         {
 634           if ((this_BFI->bfi_Buffer->bfsib_BitMapWidth == this_BFI->bfi_CopyWidth) && (this_BFI->bfi_Buffer->bfsib_BitMapHeight == this_BFI->bfi_CopyHeight))
 635           {
 636             goto pb_backfillsetup_complete;
 637           }
 638           else
 639           {
 640             ImageBackFill_CloseSourceBuffer(this_BFI->bfi_Source, this_BFI->bfi_Buffer);
 641             this_BFI->bfi_Buffer = NULL;
 642           }
 643         }
 644
 645         if (!(this_Buffer = ImageBackFill_FindBufferRecord(this_BFI->bfi_Source, this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight)))
 646         {
 647           this_Buffer = AllocMem(sizeof(struct BackFillSourceImageBuffer), MEMF_CLEAR|MEMF_PUBLIC);
 648           this_Buffer->bfsib_BitMapWidth = this_BFI->bfi_CopyWidth;
 649           this_Buffer->bfsib_BitMapHeight = this_BFI->bfi_CopyHeight;
 650
 651           if (!(this_Buffer->bfsib_BitMapRastPort = CreateRastPort()))
 652           {
 653             D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Failed to create RastPort for BackFill BitMap\n"));
 654             break;
 655           }
 656
 657           if ((this_Buffer->bfsib_BitMap = AllocBitMap(this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight, Depth, Depth == 8 ? BMF_MINPLANES : 0L, this_BFI->bfi_Screen->RastPort.BitMap)))
 658           {
 659             struct Rectangle CopyBounds;
 660
 661             D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Scale Dimensions (%d x %d)\n", this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight));
 662
 663
 664             this_Buffer->bfsib_BitMapRastPort->BitMap = this_Buffer->bfsib_BitMap;
 665             this_BFI->bfi_Buffer = this_Buffer;
 666
 667             CopyBounds.MinX = 0;
 668             CopyBounds.MinY = 0;
 669             CopyBounds.MaxX = this_BFI->bfi_CopyWidth - 1;
 670             CopyBounds.MaxY = this_BFI->bfi_CopyHeight - 1;
 671
 672
 673             ImageBackFill_CopyScaledBitMap(this_BFI->bfi_Source->bfsir_DTRastPort,
 674                     0, 0,
 675                     this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Width,
 676                     this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Height,
 677                     this_Buffer->bfsib_BitMapRastPort,
 678                     &CopyBounds, &CopyBounds, blit_MODE_Blit);
 679
 680             this_Buffer->bfsib_OpenerCount = 0x01;
 681
 682             AddTail(&this_BFI->bfi_Source->bfsir_Buffers, &this_Buffer->bfsib_Node);
 683
 684             goto pb_backfillsetup_complete;
 685           }
 686           break;
 687         }
 688         else
 689         {
 690           this_BFI->bfi_Buffer = this_Buffer;
 691           this_Buffer->bfsib_OpenerCount += 1;
 692           goto pb_backfillsetup_complete;
 693         }
 694       }
 695       // We arent the "ROOT" (desktop) window so only tile ...
 696       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: SCALED - Drawer window scaling unsupported ...\n"));
 697     }
 698     default:
 699     {
 700       struct BackFillSourceImageBuffer *this_Buffer;
 701       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: TILED mode\n"));
 702       if ((BackGround_TileMode = DoMethod(_IconWindows_PrefsObj, MUIM_WandererPrefs_ViewSettings_GetAttribute,
 703                                 BackGround_Attrib, MUIA_IconWindowExt_ImageBackFill_BGTileMode)) == -1)
 704         BackGround_TileMode = IconWindowExt_ImageBackFill_TileMode_Float;
 705
 706       if ((BackGround_XOffset = DoMethod(_IconWindows_PrefsObj, MUIM_WandererPrefs_ViewSettings_GetAttribute,
 707                                 BackGround_Attrib, MUIA_IconWindowExt_ImageBackFill_BGXOffset)) == -1)
 708         BackGround_XOffset = 0;
 709
 710       if ((BackGround_YOffset = DoMethod(_IconWindows_PrefsObj, MUIM_WandererPrefs_ViewSettings_GetAttribute,
 711                                 BackGround_Attrib, MUIA_IconWindowExt_ImageBackFill_BGYOffset)) == -1)
 712         this_BFI->bfi_Options.bfo_OffsetY = 0;
 713
 714       if (this_BFI->bfi_Options.bfo_TileMode != BackGround_TileMode)
 715       {
 716         this_BFI->bfi_Options.bfo_TileMode = BackGround_TileMode;
 717         options_changed = TRUE;
 718       }
 719
 720       if (this_BFI->bfi_Options.bfo_OffsetX != BackGround_XOffset)
 721       {
 722         this_BFI->bfi_Options.bfo_OffsetX = BackGround_XOffset;
 723         options_changed = TRUE;
 724       }
 725
 726       if (this_BFI->bfi_Options.bfo_OffsetY != BackGround_YOffset)
 727       {
 728         this_BFI->bfi_Options.bfo_OffsetY = BackGround_YOffset;
 729         options_changed = TRUE;
 730       }
 731
 732       if (this_BFI->bfi_Options.bfo_TileMode == IconWindowExt_ImageBackFill_TileMode_Float)
 733         SET(_IconWindows_IconListObj, MUIA_IconListview_FixedBackground, FALSE);
 734       else
 735         SET(_IconWindows_IconListObj, MUIA_IconListview_FixedBackground, TRUE);
 736
 737       SET(_IconWindows_IconListObj, MUIA_IconListview_ScaledBackground, FALSE);
 738
 739       this_Buffer = NULL;
 740
 741       if (this_BFI->bfi_Buffer)
 742       {
 743         if ((this_BFI->bfi_Buffer->bfsib_BitMapWidth == this_BFI->bfi_CopyWidth) && (this_BFI->bfi_Buffer->bfsib_BitMapHeight == this_BFI->bfi_CopyHeight))
 744         {
 745           goto pb_backfillsetup_complete;
 746         }
 747         else
 748         {
 749           ImageBackFill_CloseSourceBuffer(this_BFI->bfi_Source, this_BFI->bfi_Buffer);
 750           this_BFI->bfi_Buffer = NULL;
 751         }
 752       }
 753
 754       D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Dimensions Width %d, Height %d\n", this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight));
 755
 756       if (!(this_Buffer = ImageBackFill_FindBufferRecord(this_BFI->bfi_Source, this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight)))
 757       {
 758         this_Buffer = AllocMem(sizeof(struct BackFillSourceImageBuffer), MEMF_CLEAR|MEMF_PUBLIC);
 759         this_Buffer->bfsib_BitMapWidth = this_BFI->bfi_CopyWidth;
 760         this_Buffer->bfsib_BitMapHeight = this_BFI->bfi_CopyHeight;
 761
 762         if ((this_Buffer->bfsib_BitMap = AllocBitMap(this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight, Depth, Depth == 8 ? BMF_MINPLANES : 0L, this_BFI->bfi_Screen->RastPort.BitMap)))
 763         {
 764           struct Rectangle CopyBounds;
 765
 766           if (!(this_Buffer->bfsib_BitMapRastPort = CreateRastPort()))
 767           {
 768             D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: TILED - Failed to create RastPort for BackFill BitMap\n"));
 769             break;
 770           }
 771
 772           this_Buffer->bfsib_BitMapRastPort->BitMap = this_Buffer->bfsib_BitMap;
 773           this_BFI->bfi_Buffer = this_Buffer;
 774
 775           CopyBounds.MinX = 0;
 776           CopyBounds.MinY = 0;
 777           CopyBounds.MaxX = this_BFI->bfi_CopyWidth - 1;
 778           CopyBounds.MaxY = this_BFI->bfi_CopyHeight - 1;
 779
 780           ImageBackFill_CopyTiledBitMap(this_BFI->bfi_Source->bfsir_DTRastPort,
 781                   0, 0,
 782                   this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Width,
 783                   this_BFI->bfi_Source->bfsir_DTBitMapHeader->bmh_Height,
 784                   this_BFI->bfi_Buffer->bfsib_BitMapRastPort,
 785                   &CopyBounds, &CopyBounds, blit_MODE_Blit);
 786
 787           this_Buffer->bfsib_OpenerCount = 0x01;
 788
 789           AddTail(&this_BFI->bfi_Source->bfsir_Buffers, &this_BFI->bfi_Buffer->bfsib_Node);
 790
 791           goto pb_backfillsetup_complete;
 792         }
 793         break;
 794       }
 795       else
 796       {
 797         this_BFI->bfi_Buffer = this_Buffer;
 798         this_Buffer->bfsib_OpenerCount += 1;
 799         goto pb_backfillsetup_complete;
 800       }
 801     }
 802   }
 803
 804   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_ProcessBackground: Failed to create image datatype object\n"));
 805   return FALSE;
 806
 807 pb_cleanup_buffer:
 808   if (this_BFI->bfi_Buffer)
 809   {
 810     ImageBackFill_CloseSourceBuffer(this_BFI->bfi_Source, this_BFI->bfi_Buffer);
 811     this_BFI->bfi_Buffer = NULL;
 812   }
 813
 814 pb_cleanup_source:
 815   if (this_BFI->bfi_Source)
 816   {
 817     ImageBackFill_CloseSourceRecord(this_BFI->bfi_Source);
 818     this_BFI->bfi_Source = NULL;
 819   }
 820
 821   return FALSE;
 822
 823 pb_backfillsetup_complete:
 824   if ((prefs_processing) && (options_changed))
 825     SET(self, MUIA_IconWindow_Changed, TRUE);
 826
 827   return TRUE;
 828 }
 829 ///
 830
 831 ///ImageBackFill__MUIM_IconWindow_BackFill_Setup()
 832 IPTR ImageBackFill__MUIM_IconWindow_BackFill_Setup
 833 (
 834   Class *CLASS, Object *self, struct MUIP_IconWindow_BackFill_Setup *message
 835 )
 836 {
 837   struct BackFillInfo     *this_BFI = NULL;
 838
 839   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_Setup()\n"));
 840
 841   this_BFI = AllocVec(sizeof(struct BackFillInfo), MEMF_CLEAR|MEMF_PUBLIC);
 842   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_Setup: Allocated BackFillInfo @ %x\n", this_BFI));
 843
 844   return (IPTR)this_BFI;
 845 }
 846 ///
 847
 848 ///ImageBackFill__MUIM_IconWindow_BackFill_Cleanup()
 849 IPTR ImageBackFill__MUIM_IconWindow_BackFill_Cleanup
 850 (
 851   Class *CLASS, Object *self, struct MUIP_IconWindow_BackFill_Cleanup *message
 852 )
 853 {
 854   struct BackFillInfo   *this_BFI = (struct BackFillInfo   *)message->BackFill_Data;
 855
 856 D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_Cleanup()\n"));
 857
 858   if (this_BFI->bfi_Buffer)
 859   {
 860     ImageBackFill_CloseSourceBuffer(this_BFI->bfi_Source, this_BFI->bfi_Buffer);
 861     this_BFI->bfi_Buffer = NULL;
 862   }
 863   if (this_BFI->bfi_Source)
 864   {
 865     ImageBackFill_CloseSourceRecord(this_BFI->bfi_Source);
 866     this_BFI->bfi_Source = NULL;
 867   }
 868
 869   FreeVec(this_BFI);
 870   return TRUE;
 871 }
 872 ///
 873
 874 ///ImageBackFill__MUIM_IconWindow_BackFill_DrawBackground()
 875 IPTR ImageBackFill__MUIM_IconWindow_BackFill_DrawBackground
 876 (
 877   Class *CLASS, Object *self, struct MUIP_IconWindow_BackFill_DrawBackground *message
 878 )
 879 {
 880   struct BackFillInfo   *this_BFI = NULL;
 881
 882 D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_DrawBackground()\n"));
 883
 884   if ((this_BFI = (struct BackFillInfo   *)message->BackFill_Data) != NULL)
 885   {
 886     D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_DrawBackground: Got BackFill_Data @ %x\n", this_BFI));
 887     this_BFI->bfi_RastPort = (struct RastPort *)message->draw_RastPort;
 888
 889     if ((this_BFI->bfi_Buffer) && (this_BFI->bfi_RastPort))
 890     {
 891
 892 #warning "TODO: Make Base Tile Offset preference settable"
 893       WORD OffsetX = this_BFI->bfi_Options.bfo_OffsetX;         // the offset within the tile in x direction
 894       WORD OffsetY = this_BFI->bfi_Options.bfo_OffsetY;         // the offset within the tile in y direction
 895
 896 D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_DrawBackground: BackFill_Data has suitable Buffer and RastPort ..\n"));
 897
 898       if (this_BFI->bfi_Options.bfo_TileMode == IconWindowExt_ImageBackFill_TileMode_Float)
 899       {
 900         D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_DrawBackground: Rendering using floating backdrop mode\n"));
 901         OffsetX += message->draw_BFM->OffsetX;
 902         OffsetY += message->draw_BFM->OffsetY;
 903       }
 904
 905       ImageBackFill_CopyTiledBitMap(this_BFI->bfi_Buffer->bfsib_BitMapRastPort,
 906               OffsetX, OffsetY,
 907               this_BFI->bfi_CopyWidth, this_BFI->bfi_CopyHeight,
 908               this_BFI->bfi_RastPort,
 909               &message->draw_BFM->AreaBounds,
 910               &message->draw_BFM->DrawBounds,
 911               blit_MODE_Clip);
 912
 913       return (IPTR)TRUE;
 914     }
 915   }
 916   D(bug("[IconWindow.ImageBackFill] MUIM_IconWindow_BackFill_DrawBackground: Causing parent to render .. \n"));
 917   return (IPTR)FALSE;
 918 }
 919 ///
 920
 921 /*** SPECIAL : Early Setup ****************************************************************/
 922 ///ImageBackFill__SetupClass()
 923 IPTR ImageBackFill__SetupClass()
 924 {
 925   struct MUIP_IconWindow_BackFill_Register message;
 926
 927   D(bug("[IconWindow.ImageBackFill] ImageBackFill__SetupClass()\n"));
 928
 929   image_backfill_descriptor.bfd_BackFillID = image_backfill_name;
 930
 931   image_backfill_descriptor.bfd_MUIM_IconWindow_BackFill_Setup = ImageBackFill__MUIM_IconWindow_BackFill_Setup;
 932   image_backfill_descriptor.bfd_MUIM_IconWindow_BackFill_Cleanup = ImageBackFill__MUIM_IconWindow_BackFill_Cleanup;
 933   image_backfill_descriptor.bfd_MUIM_IconWindow_BackFill_ProcessBackground = ImageBackFill__MUIM_IconWindow_BackFill_ProcessBackground;
 934   image_backfill_descriptor.bfd_MUIM_IconWindow_BackFill_DrawBackground = ImageBackFill__MUIM_IconWindow_BackFill_DrawBackground;
 935
 936   message.register_Node = &image_backfill_descriptor;
 937
 938   NewList(&image_backfill_images);
 939
 940 #if defined(WANDERER_MODULE_BACKFILL_ENABLED)
 941   IconWindow__MUIM_IconWindow_BackFill_Register(NULL, NULL, &message);
 942 #endif
 943
 944   return TRUE;
 945 }
 946 ///
 947
 948 /* Make sure and run _AFTER_ IconWindow__SetupClass() */
 949 ADD2INIT(ImageBackFill__SetupClass, 10);