/* Copyright (c) Dietmar Planitzer, 2002 */

/* This program is freely distributable without licensing fees 

   and is provided without guarantee or warrantee expressed or 

   implied. This program is -not- in the public domain. */

#import "macx_glut.h"

#import "GLUTView.h"

static NSMutableDictionary *    __glutCursorTable = nil;

static NSCursor *__glutMakeCursor(NSString *name, NSPoint hSpot)

{

   NSCursor *   cursor = nil;

   NSImage *    crsrImage = nil;

   NSString *   imagePath = [__glutGetFrameworkBundle() pathForResource: name ofType: @"tiff"];

   NSCParameterAssert(name != nil);

   /* Do we already know about a cursor named 'name' ? if so, then return it */

   if(__glutCursorTable && (cursor = [__glutCursorTable objectForKey: name]) != nil)

      return cursor;

   /* A cursor named 'name' doesn't exist yet, create it */

   if(nil != (crsrImage = [[NSImage alloc] initWithContentsOfFile: imagePath])) {       

      cursor = [[[NSCursor alloc]   initWithImage: crsrImage

                                    hotSpot: hSpot] autorelease];

      [crsrImage release];

      if(cursor) {

         if(__glutCursorTable == nil) {

            __glutCursorTable = [[NSMutableDictionary alloc] init];

            if(!__glutCursorTable) {

               __glutFatalError("out of memory");

            }

         }

         [__glutCursorTable setObject: cursor forKey: name];

         return cursor;

      }

   }

   /* Return something reasonable... */

   return [NSCursor arrowCursor];

}

NSCursor *__glutGetNativeCursor(int cid)

{

   NSCursor *   cursor = nil;

   switch(cid) {

         /* Basic arrows. */

      case GLUT_CURSOR_RIGHT_ARROW:

               cursor = __glutMakeCursor(@"rightArrowCursor", NSMakePoint(15, -1));

               break;

      case GLUT_CURSOR_LEFT_ARROW:

               cursor = [NSCursor arrowCursor];

               break;

         /* Symbolic cursor shapes. */

      case GLUT_CURSOR_INFO:

               cursor = __glutMakeCursor(@"fingerCursor", NSMakePoint(5, 1));

               break;

      case GLUT_CURSOR_DESTROY:

               cursor = __glutMakeCursor(@"destroyCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_HELP:

               cursor = __glutMakeCursor(@"helpCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_CYCLE:

               cursor = __glutMakeCursor(@"cycleCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_SPRAY:

               cursor = __glutMakeCursor(@"sprayCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_WAIT:

               cursor = __glutMakeCursor(@"waitCursor", NSMakePoint(0, 0));

               break;

      case GLUT_CURSOR_TEXT:

               cursor = [NSCursor IBeamCursor];

               break;

         /* Directional cursors. */

      case GLUT_CURSOR_UP_DOWN:

               cursor = __glutMakeCursor(@"upDownCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_LEFT_RIGHT:

               cursor = __glutMakeCursor(@"leftRightCursor", NSMakePoint(8, 8));

               break;

         /* Sizing cursors. */

      case GLUT_CURSOR_TOP_SIDE:

               cursor = __glutMakeCursor(@"topCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_BOTTOM_SIDE:

               cursor = __glutMakeCursor(@"bottomCursor", NSMakePoint(13, 8));

               break;

      case GLUT_CURSOR_LEFT_SIDE:

               cursor = __glutMakeCursor(@"leftCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_RIGHT_SIDE:

               cursor = __glutMakeCursor(@"rightCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_TOP_LEFT_CORNER:

               cursor = __glutMakeCursor(@"topleftCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_BOTTOM_LEFT_CORNER:

               cursor = __glutMakeCursor(@"bottomleftCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_TOP_RIGHT_CORNER:

               cursor = __glutMakeCursor(@"toprightCursor", NSMakePoint(8, 8));

               break;

      case GLUT_CURSOR_BOTTOM_RIGHT_CORNER:

               cursor = __glutMakeCursor(@"bottomrightCursor", NSMakePoint(8, 8));

               break;

         /* Inherit from parent window. */

      case GLUT_CURSOR_INHERIT:

               break;

         /* Blank cursor. */

      case GLUT_CURSOR_NONE:

               cursor = __glutMakeCursor(@"blankCursor", NSMakePoint(8, -8));

               break; 

         /* Fullscreen crosshair (if available). */

      case GLUT_CURSOR_FULL_CROSSHAIR:

      case GLUT_CURSOR_CROSSHAIR:

               cursor = __glutMakeCursor(@"crossCursor", NSMakePoint(8, 8));

               break;

   }

   return cursor;

}

/* CENTRY */

void APIENTRY glutSetCursor(int cursor)

{

   GLUTAPI_DECLARATIONS

   GLUTAPI_BEGIN

      [__glutCurrentView setCursor: cursor];

   GLUTAPI_END

}

/* ENDCENTRY */