apps-gorm/Gorm.m

/* Gorm.m
 *
 * Copyright (C) 1999, 2003 Free Software Foundation, Inc.
 *
 * Author:	Richard Frith-Macdonald <richard@brainstrom.co.uk>
 * Author:	Gregory John Casamento <greg_casamento@yahoo.com>
 * Date:	1999, 2003, 2004
 * 
 * This file is part of GNUstep.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 
 * USA.
 */


#include <GormCore/GormGenericEditor.h>
#include <GormCore/GormPrivate.h>
#include <GormCore/GormFontViewController.h>
#include <GormCore/GormSetNameController.h>
#include <GormCore/GormFunctions.h>
#include <GormCore/GormPluginManager.h>
#include <GNUstepBase/GSObjCRuntime.h>
#include <GormPrefs/GormPrefController.h>

@interface Gorm : NSApplication <IB, Gorm>
{
  GormPrefController    *preferencesController;
  GormClassManager	*classManager;
  GormInspectorsManager	*inspectorsManager;
  GormPalettesManager	*palettesManager;
  GormPluginManager	*pluginManager;
  id<IBSelectionOwners>	selectionOwner;
  NSMutableArray	*documents;
  BOOL			isConnecting;
  BOOL			isTesting;
  id             	testContainer;
  id                    gormMenu;
  NSMenu		*mainMenu; // saves the main menu...
  NSMenu                *servicesMenu; // saves the services menu...
  NSMenu                *classMenu; // so we can set it for the class view
  NSMenuItem            *guideLineMenuItem; 
  NSDictionary		*menuLocations;
  NSImage		*linkImage;
  NSImage		*sourceImage;
  NSImage		*targetImage;
  NSImage               *gormImage;
  NSImage               *testingImage;
  id			connectSource;
  id			connectDestination;
  NSPoint               cascadePoint;
  NSMutableArray        *testingWindows;
  NSSet                 *topObjects;
}

// handle notifications the object recieves.
- (void) handleNotification: (NSNotification*)aNotification;
@end

@implementation Gorm

- (id<IBDocuments>) activeDocument
{
  return [[NSDocumentController sharedDocumentController] currentDocument];
}

/* 
   NSApp
*/
- (id) init 
{
  self = [super init];
  if (self != nil)
    {
      NSNotificationCenter	*nc = [NSNotificationCenter defaultCenter];
      NSBundle			*bundle = [NSBundle mainBundle];
      NSString			*path;

      path = [bundle pathForImageResource: @"GormLinkImage"];
      linkImage = [[NSImage alloc] initWithContentsOfFile: path];
      path = [bundle pathForImageResource: @"GormSourceTag"];
      sourceImage = [[NSImage alloc] initWithContentsOfFile: path];
      path = [bundle pathForImageResource: @"GormTargetTag"];
      targetImage = [[NSImage alloc] initWithContentsOfFile: path];
      path = [bundle pathForImageResource: @"Gorm"];
      gormImage = [[NSImage alloc] initWithContentsOfFile: path];
      path = [bundle pathForImageResource: @"GormTesting"];
      testingImage = [[NSImage alloc] initWithContentsOfFile: path];

      documents = [[NSMutableArray alloc] init];
      [nc addObserver: self
	  selector: @selector(handleNotification:)
	  name: IBSelectionChangedNotification
	  object: nil];
      [nc addObserver: self
	  selector: @selector(handleNotification:)
	  name: IBWillCloseDocumentNotification
	  object: nil];

      /*
       * establish registration domain defaults from file.
       */
      path = [bundle pathForResource: @"Defaults" ofType: @"plist"];
      if (path != nil)
	{
	  NSDictionary	*dict;
	  
	  dict = [NSDictionary dictionaryWithContentsOfFile: path];
	  if (dict != nil)
	    {
	      NSUserDefaults	*defaults = [NSUserDefaults standardUserDefaults];
	      
	      [defaults registerDefaults: dict];
	    }
	}

      /*
       * load the interface...
       */
      if(![NSBundle loadNibNamed: @"Gorm" owner: self])
	{
	  NSLog(@"Failed to load interface");
	  exit(-1);
	}

      /*
       * Make sure the palettes/plugins managers exist, so that the 
       * editors and inspectors provided in the standard palettes 
       * are available.
       */
      [self palettesManager];
      [self pluginManager];

      /*
       * set the delegate.
       */
      [self setDelegate: self];
    }
  return self;
}


- (void) dealloc
{
  NSNotificationCenter	*nc = [NSNotificationCenter defaultCenter];

  [nc removeObserver: self];
  RELEASE(inspectorsManager);
  RELEASE(palettesManager);
  RELEASE(documents);
  RELEASE(classManager);
  [super dealloc];
}

- (void) stop: (id)sender
{
  if(isTesting == NO)
    {
      [super stop: sender];
    }
  else
    {
      [self endTesting: sender];
    }
}

- (void) applicationDidFinishLaunching: (NSApplication*)sender
{
  NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  
  if ( [defaults boolForKey: @"ShowInspectors"] )
    {
      [[[self inspectorsManager] panel] makeKeyAndOrderFront: self];
    }
  if ( [defaults boolForKey: @"ShowPalettes"] )
    {
      [[[self palettesManager] panel] makeKeyAndOrderFront: self];
    }
}

- (void) applicationWillTerminate: (NSApplication*)sender
{
  [[NSUserDefaults standardUserDefaults] 
    setBool: [[[self inspectorsManager] panel] isVisible]
    forKey: @"ShowInspectors"];
  [[NSUserDefaults standardUserDefaults] 
    setBool: [[[self palettesManager] panel] isVisible]
    forKey: @"ShowPalettes"];
}

- (GormClassManager*) classManager
{
  id document = [self activeDocument];

  if (document != nil) return [document classManager];
  
  /* kept in the case one want access to the classManager without document */
  else if (classManager == nil)
    {
      classManager = [[GormClassManager alloc] init];
    }
  return classManager;
  
}

- (id) connectDestination
{
  return connectDestination;
}

- (id) connectSource
{
  return connectSource;
}

- (void) displayConnectionBetween: (id)source
			      and: (id)destination
{
  NSWindow	*window;
  NSRect	rect;
  

  if (source != connectSource)
    {
      if (connectSource != nil)
	{
	  window = [(GormDocument *)[self activeDocument] windowAndRect: &rect
				    forObject: connectSource];
	  if (window != nil)
	    {
	      NSView	*view = [[window contentView] superview];
 
	      rect.origin.x --;
	      rect.size.width ++;
	      
	      rect.size.height ++;

	      [window disableFlushWindow];
	      [view displayRect: rect];
	      
	      [window enableFlushWindow];
	      [window flushWindow];
	    }
	}
      connectSource = source;
    }
  if (destination != connectDestination)
    {
      if (connectDestination != nil)
	{
	  window = [(GormDocument *)[self activeDocument] windowAndRect: &rect
				    forObject: connectDestination];
	  if (window != nil)
	    {
	      NSView	*view = [[window contentView] superview];

	      /*
	       * Erase image from old location.
	       */
	      rect.origin.x --;
	      rect.size.width ++;
	      rect.size.height ++;

	      [view lockFocus];
	      [view displayRect: rect];
	      [view unlockFocus];
	      [window flushWindow];
	    }
	}
      connectDestination = destination;
    }
  if (connectSource != nil)
    {
      window = [(GormDocument *)[self activeDocument] windowAndRect: &rect forObject: connectSource];
      if (window != nil)
	{
	  NSView	*view = [[window contentView] superview];
	  NSRect        imageRect = rect;

	  imageRect.origin.x++;
	  //rect.size.width--;
	  //rect.size.height--;
	  [view lockFocus];
	  [[NSColor greenColor] set];
	  NSFrameRectWithWidth(rect, 1);
	  
	  [sourceImage compositeToPoint: imageRect.origin
			      operation: NSCompositeSourceOver];
	  [view unlockFocus];
	  [window flushWindow];
	}
    }
  if (connectDestination != nil && connectDestination == connectSource)
    {
      window = [(GormDocument *)[self activeDocument] windowAndRect: &rect
				forObject: connectDestination];
      if (window != nil)
	{
	  NSView	*view = [[window contentView] superview];
	  NSRect        imageRect = rect;

	  imageRect.origin.x += 3;
	  imageRect.origin.y += 2;
	  // rect.size.width -= 5;
	  // rect.size.height -= 5;
	  [view lockFocus];
	  [[NSColor purpleColor] set];
	  NSFrameRectWithWidth(rect, 1);
	  
	  imageRect.origin.x += [targetImage size].width;
	  [targetImage compositeToPoint: imageRect.origin
			      operation: NSCompositeSourceOver];
	  [view unlockFocus];
	  [window flushWindow];
	}
    }
  else if (connectDestination != nil)
    {
      window = [(GormDocument *)[self activeDocument] windowAndRect: &rect
				forObject: connectDestination];
      if (window != nil)
	{
	  NSView	*view = [[window contentView] superview];
	  NSRect        imageRect = rect;

	  imageRect.origin.x++;
	  // rect.size.width--;
	  // rect.size.height--;
	  [view lockFocus];
	  [[NSColor purpleColor] set];
	  NSFrameRectWithWidth(rect, 1);
	  
	  [targetImage compositeToPoint: imageRect.origin
			      operation: NSCompositeSourceOver];
	  [view unlockFocus];
	  [window flushWindow];
	}
    }
}

/** Info Menu Actions */
- (void) preferencesPanel: (id) sender
{
  if(! preferencesController)
    {
      preferencesController =  [[GormPrefController alloc] init];
    }

  [[preferencesController panel] makeKeyAndOrderFront:nil];
}

/** Document Menu Actions */
- (void) close: (id)sender
{
  GormDocument  *document = (GormDocument *)[self activeDocument];
  if([document canCloseDocument])
    {
      [document close];
    }
}

- (void) debug: (id) sender
{
  [[self activeDocument] performSelector: @selector(printAllEditors)];
}

- (void) loadSound: (id) sender
{
  [(GormDocument *)[self activeDocument] openSound: sender];
}

- (void) loadImage: (id) sender
{
  [(GormDocument *)[self activeDocument] openImage: sender];
}

- (void) arrangeInFront: (id)sender
{
  if([self isTestingInterface] == NO)
    {
      [super arrangeInFront: sender];
    }
}

- (void) testInterface: (id)sender
{
  if (isTesting == YES)
    {
      return;
    }
  else
    {
      // top level objects
      NS_DURING
	{
	  NSUserDefaults	*defaults;
	  NSNotificationCenter	*notifCenter = [NSNotificationCenter defaultCenter];
	  GormDocument		*activeDoc = (GormDocument*)[self activeDocument];
	  NSData		*data;
	  NSArchiver            *archiver;
	  NSEnumerator          *en;
	  NSDictionary          *substituteClasses = [palettesManager substituteClasses];
	  NSString              *subClassName;
	  id                    obj;
	  id                    savedDelegate = [NSApp delegate];

	  // which windows were open when testing started...
	  testingWindows = [[NSMutableArray alloc] init]; 
	  en = [[self windows] objectEnumerator];
	  while((obj = [en nextObject]) != nil)
	    {
	      if([obj isVisible])
		{
		  [testingWindows addObject: obj];
		}
	    }

	  // set here, so that beginArchiving and endArchiving do not use templates.
	  isTesting = YES; 
	  [self setApplicationIconImage: testingImage];
	  archiver = [[NSArchiver alloc] init];
	  [activeDoc deactivateEditors];
	  [archiver encodeClassName: @"GormCustomView" 
		    intoClassName: @"GormTestCustomView"];

	  // substitute classes from palettes.
	  en = [substituteClasses keyEnumerator];
	  while((subClassName = [en nextObject]) != nil)
	    {
	      NSString *realClassName = [substituteClasses objectForKey: subClassName];

	      if([realClassName isEqualToString: @"NSTableView"] ||
		 [realClassName isEqualToString: @"NSOutlineView"] ||
		 [realClassName isEqualToString: @"NSBrowser"])
		{
		  continue;
		}

	      [archiver encodeClassName: subClassName
			intoClassName: realClassName];
	    }

	  // do not allow custom classes during testing.
	  [GSClassSwapper setIsInInterfaceBuilder: YES]; 
	  [archiver encodeRootObject: activeDoc];
	  data = RETAIN([archiver archiverData]); // Released below... 
	  [activeDoc reactivateEditors];
	  RELEASE(archiver);
	  [GSClassSwapper setIsInInterfaceBuilder: NO]; 
	  
	  // signal the start of testing...
	  [notifCenter postNotificationName: IBWillBeginTestingInterfaceNotification
		       object: self];
	  
	  if ([selectionOwner conformsToProtocol: @protocol(IBEditors)] == YES)
	    {
	      [selectionOwner makeSelectionVisible: NO];
	    }
	  
	  defaults = [NSUserDefaults standardUserDefaults];
	  menuLocations = [[defaults objectForKey: @"NSMenuLocations"] copy];
	  [defaults removeObjectForKey: @"NSMenuLocations"];
	  servicesMenu = [self servicesMenu];
	  
	  testContainer = [NSUnarchiver unarchiveObjectWithData: data];
	  if (testContainer != nil)
	    {
	      NSMutableDictionary *nameTable = [testContainer nameTable];
	      NSMenu *aMenu = [nameTable objectForKey: @"NSMenu"];

	      [self setMainMenu: aMenu];
	      // initialize the context.
	      RETAIN(testContainer);
	      topObjects = [testContainer topLevelObjects]; 

	      [nameTable removeObjectForKey: @"NSServicesMenu"];
	      [nameTable removeObjectForKey: @"NSWindowsMenu"];
	      [testContainer awakeWithContext: nil];
	      [NSApp setDelegate: savedDelegate]; // makes sure the delegate isn't reset.
	      
	      /*
	       * If the model didn't have a main menu, create one,
	       * otherwise, ensure that 'quit' ends testing mode.
	       */
	      if (aMenu == nil)
		{
		  NSMenu	*testMenu;
		  
		  testMenu = [[NSMenu alloc] initWithTitle: _(@"Test Menu (Gorm)")];
		  [testMenu addItemWithTitle: _(@"Quit Test") 
			    action: @selector(deferredEndTesting:)
			    keyEquivalent: @"q"];	
		  [self setMainMenu: testMenu]; // released, when the menu is reset in endTesting.
		}
	      else
		{
		  NSMenu *testMenu = [self mainMenu];
		  NSString  *newTitle = [[testMenu title] stringByAppendingString: @" (Gorm)"];
		  NSArray *items = findAll(testMenu);
		  NSEnumerator *en = [items objectEnumerator];
		  id item;
		  BOOL found = NO;

		  while((item = [en nextObject]) != nil)
		    {
		      if([item isKindOfClass: [NSMenuItem class]])
			{
			  SEL action = [item action];
			  if(sel_eq(action, @selector(terminate:)))
			    {
			      found = YES;
			      [item setTitle: _(@"Quit Test")];
			      [item setTarget: self];
			      [item setAction: @selector(deferredEndTesting:)];
			    }
			}
		    }

		  // releast the items...
		  RELEASE(items);

		  // set the menu up so that it's easy to tell we're testing and how to quit.
		  [testMenu setTitle: newTitle];
		  if(found == NO)
		    {
		      [testMenu addItemWithTitle: _(@"Quit Test") 
				action: @selector(deferredEndTesting:)
				keyEquivalent: @"q"];	
		    }
		}

	      // so we don't get the warning...
	      [self setServicesMenu: nil]; 
	      [[self mainMenu] display];
	      en = [[self windows] objectEnumerator];
	      while((obj = [en nextObject]) != nil)
		{
		  if([obj isVisible])
		    {
		      [obj makeKeyAndOrderFront: self];
		    }
		}
	      
	      // we're now in testing mode.
	      [notifCenter postNotificationName: IBDidBeginTestingInterfaceNotification
			   object: self];      

	      [NSApp unhide: self];
	    }

	  RELEASE(data);
	}
      NS_HANDLER
	{
	  // reset the application after the error.
	  NSLog(@"Problem while testing interface: %@", 
		[localException reason]);
	  NSRunAlertPanel(_(@"Problem While Testing Interface"), 
			  [NSString stringWithFormat: @"Make sure connections are to appropriate objects.\n"
				    @"Exception: %@",
				    [localException reason]], 
			  _(@"OK"), nil, nil);
	  [self endTesting: self];
	}
      NS_ENDHANDLER;
    }
}


/** Edit Menu Actions */

- (void) copy: (id)sender
{
  if ([[selectionOwner selection] count] == 0
      || [selectionOwner respondsToSelector: @selector(copySelection)] == NO)
    return;
  
  if([self isConnecting])
    {
      [self stopConnecting];
    }

  [(id<IBSelectionOwners,IBEditors>)selectionOwner copySelection];
}


- (void) cut: (id)sender
{
  if ([[selectionOwner selection] count] == 0
      || [selectionOwner respondsToSelector: @selector(copySelection)] == NO
      || [selectionOwner respondsToSelector: @selector(deleteSelection)] == NO)
    return;

  if([self isConnecting])
    {
      [self stopConnecting];
    }

  [(id<IBSelectionOwners,IBEditors>)selectionOwner copySelection];
  [(id<IBSelectionOwners,IBEditors>)selectionOwner deleteSelection];
}

- (void) paste: (id)sender
{
  if ([selectionOwner respondsToSelector: @selector(pasteInSelection)] == NO)
    return;

  if([self isConnecting])
    {
      [self stopConnecting];
    }

  [(id<IBSelectionOwners,IBEditors>)selectionOwner pasteInSelection];
}


- (void) delete: (id)sender
{
  if ([[selectionOwner selection] count] == 0
    || [selectionOwner respondsToSelector: @selector(deleteSelection)] == NO)
    return;

  if([self isConnecting])
    {
      [self stopConnecting];
    }

  [(id<IBSelectionOwners,IBEditors>)selectionOwner deleteSelection];
}

- (void) selectAllItems: (id)sender
{
  /* TODO: Select all items in the current selection owner. */
  return;
}

- (void) setName: (id)sender
{
  GormSetNameController *panel;
  int		returnPanel;
  NSTextField	*textField;
  NSArray	*selectionArray = [selectionOwner selection];
  id		obj = [selectionArray objectAtIndex: 0];
  NSString	*name;

  if([(GormDocument *)[self activeDocument] isTopLevelObject: obj])
    {
      panel = [[GormSetNameController alloc] init];
      returnPanel = [panel runAsModal];
      textField = [panel textField];
      
      if (returnPanel == NSAlertDefaultReturn)
	{
	  name = [[textField stringValue] stringByTrimmingSpaces];
	  if (name != nil && [name isEqual: @""] == NO)
	    {
	      [[self activeDocument] setName: name forObject: obj];
	    }
	}
      RELEASE(panel);
    }
}

- (void) guideline: (id) sender
{
  [[NSNotificationCenter defaultCenter] postNotificationName: GormToggleGuidelineNotification
 					object:nil];
  if ( [guideLineMenuItem tag] == 0 ) 
    {
      [guideLineMenuItem setTitle:_(@"Enable GuideLine")];
      [guideLineMenuItem setTag:1];
    }
  else if ( [guideLineMenuItem tag] == 1)
    {
      [guideLineMenuItem setTitle:_(@"Disable GuideLine")];
      [guideLineMenuItem setTag:0];
    }
}


- (void) orderFrontFontPanel: (id) sender
{
  NSFontPanel *fontPanel = [NSFontPanel sharedFontPanel];
  GormFontViewController *gfvc = 
    [GormFontViewController sharedGormFontViewController];
  [fontPanel setAccessoryView: [gfvc view]];
  [[NSFontManager sharedFontManager] orderFrontFontPanel: self];
}

/** Grouping */

- (void) groupSelectionInSplitView: (id)sender
{
  if ([[selectionOwner selection] count] < 2
      || [selectionOwner respondsToSelector: @selector(groupSelectionInSplitView)] == NO)
    return;

  [(GormGenericEditor *)selectionOwner groupSelectionInSplitView];
}

- (void) groupSelectionInBox: (id)sender
{
  if ([selectionOwner respondsToSelector: @selector(groupSelectionInBox)] == NO)
    return;
  [(GormGenericEditor *)selectionOwner groupSelectionInBox];
}

- (void) groupSelectionInScrollView: (id)sender
{
  if ([selectionOwner respondsToSelector: @selector(groupSelectionInScrollView)] == NO)
    return;
  [(GormGenericEditor *)selectionOwner groupSelectionInScrollView];
}

- (void) ungroup: (id)sender
{
  // NSLog(@"ungroup: selectionOwner %@", selectionOwner);
  if ([selectionOwner respondsToSelector: @selector(ungroup)] == NO)
    return;
  [(GormGenericEditor *)selectionOwner ungroup];
}

/** Classes actions */

- (void) createSubclass: (id)sender
{
  [(GormDocument *)[self activeDocument] createSubclass: sender];
}

- (void) loadClass: (id)sender
{
  // Call the current document and create the class 
  // descibed by the header
  [(GormDocument *)[self activeDocument] loadClass: sender];
}

- (void) createClassFiles: (id)sender
{
  [(GormDocument *)[self activeDocument] createClassFiles: sender];
}

- (void) instantiateClass: (id)sender
{
   [(GormDocument *)[self activeDocument] instantiateClass: sender];
}

- (void) addAttributeToClass: (id)sender
{  
  [(GormDocument *)[self activeDocument] addAttributeToClass: sender];
}

- (void) remove: (id)sender
{  
  [(GormDocument *)[self activeDocument] remove: sender];
}

/** Palettes Actions... */

- (void) inspector: (id) sender
{
  [[[self inspectorsManager] panel] makeKeyAndOrderFront: self];
}

- (void) palettes: (id) sender
{
  [[[self palettesManager] panel] makeKeyAndOrderFront: self];
}

- (void) loadPalette: (id) sender
{
  [[self palettesManager] openPalette: sender];
}

/** Testing methods... */

- (void) deferredEndTesting: (id) sender
{
  [[NSRunLoop currentRunLoop]
    performSelector: @selector(endTesting:)
    target: self
    argument: nil
    order: 5000
    modes: [NSArray arrayWithObjects:
		      NSDefaultRunLoopMode,
		    NSModalPanelRunLoopMode,
		    NSEventTrackingRunLoopMode, nil]];
}

- (id) endTesting: (id)sender
{
  if (isTesting == NO)
    {
      return nil;
    }
  else
    {
      NSNotificationCenter	*nc = [NSNotificationCenter defaultCenter];
      NSUserDefaults		*defaults;
      NSEnumerator		*e;
      id			val;

      [nc postNotificationName: IBWillEndTestingInterfaceNotification
			object: self];

      /*
       * Make sure windows will go away when the container is destroyed.
       */
      e = [topObjects objectEnumerator];
      while ((val = [e nextObject]) != nil)
	{
	  if ([val isKindOfClass: [NSWindow class]] == YES)
	    {
	      [val close];
	    }
	}

      /*
       * Make sure any peripheral windows: font panels, etc. which are brought
       * up by the interface being tested are also closed.
       */
      e = [[self windows] objectEnumerator];
      while ((val = [e nextObject]) != nil)
	{
	  if ([testingWindows containsObject: val] == NO && 
	      [val isKindOfClass: [NSWindow class]] &&
	      [val isVisible])
	    {
	      [val orderOut: self];
	    }
	}

      // prevent saving of this, if the menuLocations have not previously been set.
      if(menuLocations != nil)
	{
	  defaults = [NSUserDefaults standardUserDefaults];
	  [defaults setObject: menuLocations forKey: @"NSMenuLocations"];
	  DESTROY(menuLocations);
	}

      [self setMainMenu: mainMenu];
      [self setApplicationIconImage: gormImage];

      NS_DURING
	{
	  [self setServicesMenu: servicesMenu];
	}
      NS_HANDLER
	{
	  NSDebugLog(@"Exception while setting services menu");
	}
      NS_ENDHANDLER

      [mainMenu display]; // bring it to the front...
      isTesting = NO;

      if ([selectionOwner conformsToProtocol: @protocol(IBEditors)] == YES)
	{
	  [selectionOwner makeSelectionVisible: YES];
	}
      [nc postNotificationName: IBDidEndTestingInterfaceNotification
			object: self];
      

      DESTROY(testingWindows);

      // deallocate
      RELEASE(testContainer);

      return self;
    }
}

- (void) handleNotification: (NSNotification*)notification
{
  NSString	*name = [notification name];
  id		obj = [notification object];

  if ([name isEqual: IBSelectionChangedNotification])
    {
      /*
       * If we are connecting - stop it - a change in selection must mean
       * that the connection process has ended.
       */
      if ([self isConnecting] == YES)
	{
	  [self stopConnecting];
	}
      [selectionOwner makeSelectionVisible: NO];
      selectionOwner = obj;
      [[self inspectorsManager] updateSelection];
    }
  else if ([name isEqual: IBWillCloseDocumentNotification])
    {
      selectionOwner = nil;
      [documents removeObjectIdenticalTo: obj];
    }
}

- (void) awakeFromNib
{
  // set the menu...
  mainMenu = (NSMenu *)gormMenu;
  //for cascadePoint
  cascadePoint = NSZeroPoint;
}


- (GormInspectorsManager*) inspectorsManager
{
  if (inspectorsManager == nil)
    {
      inspectorsManager = (GormInspectorsManager *)[GormInspectorsManager sharedInspectorManager];
    }
  return inspectorsManager;
}


- (BOOL) isConnecting
{
  return isConnecting;
}

- (BOOL) isTestingInterface
{
  return isTesting;
}

- (NSImage*) linkImage
{
  return linkImage;
}


- (id) miniaturize: (id)sender
{
  NSWindow	*window = [(GormDocument *)[self activeDocument] window];

  [window miniaturize: self];
  return nil;
}

- (GormPalettesManager*) palettesManager
{
  if (palettesManager == nil)
    {
      palettesManager = [[GormPalettesManager alloc] init];
    }
  return palettesManager;
}

- (GormPluginManager*) pluginManager
{
  if (pluginManager == nil)
    {
      pluginManager = [[GormPluginManager alloc] init];
    }
  return pluginManager;
}

- (id<IBSelectionOwners>) selectionOwner
{
  return (id<IBSelectionOwners>)selectionOwner;
}

- (id) selectedObject
{
  return [[selectionOwner selection] lastObject];
} 

- (id<IBDocuments>) documentForObject: (id)object
{
  NSEnumerator *en = [documents objectEnumerator];
  id doc = nil;
  id result = nil;

  while((doc = [en nextObject]) != nil)
    {
      if([doc containsObject: object])
	{
	  result = doc;
	  break;
	}
    }

  return result;
}

- (void) startConnecting
{
  if (isConnecting == YES)
    {
      return;
    }
  if (connectSource == nil)
    {
      return;
    }
  if (connectDestination
      && [[self activeDocument] containsObject: connectDestination] == NO)
    {
      NSLog(@"Oops - connectDestination not in active document");
      return;
    }
  if ([[self activeDocument] containsObject: connectSource] == NO)
    {
      NSLog(@"Oops - connectSource not in active document");
      return;
    }
  isConnecting = YES;
  [[self inspectorsManager] updateSelection];
}

- (void) stopConnecting
{
  [self displayConnectionBetween: nil and: nil];
  isConnecting = NO;
  connectSource = nil;
  connectDestination = nil;
}

- (BOOL) validateMenuItem: (NSMenuItem*)item
{
  GormDocument	*active = (GormDocument*)[self activeDocument];
  SEL		action = [item action];
  GormClassManager *cm = nil; 
  NSArray	*s = nil;

  // if we have an active document...
  if(active != nil)
    {
      cm = [active classManager];
      s = [selectionOwner selection];
    }

  if (sel_eq(action, @selector(close:))
      || sel_eq(action, @selector(miniaturize:)))
    {
      if (active == nil)
	return NO;
    }
  else if (sel_eq(action, @selector(testInterface:)))
    {
      if (active == nil)
	return NO;
    }
  else if (sel_eq(action, @selector(copy:)))
    {
      if ([s count] == 0)
	return NO;
      else
	{
	  id	    o = [s objectAtIndex: 0];
	  NSString *n = [active nameForObject: o];
	  if ([n isEqual: @"NSOwner"] || [n isEqual: @"NSFirst"])
	    {
	      return NO;
	    }
	}

      return [selectionOwner respondsToSelector: @selector(copySelection)];
    }
  else if (sel_eq(action, @selector(cut:)))
    {
      if ([s count] == 0)
	return NO;
      else
	{
	  id	    o = [s objectAtIndex: 0];
	  NSString *n = [active nameForObject: o];
	  if ([n isEqual: @"NSOwner"] || [n isEqual: @"NSFirst"])
	    {
	      return NO;
	    }
	}

      return ([selectionOwner respondsToSelector: @selector(copySelection)]
	&& [selectionOwner respondsToSelector: @selector(deleteSelection)]);
    }
  else if (sel_eq(action, @selector(delete:)))
    {
      if ([s count] == 0)
	return NO;
      else
	{
	  id	    o = [s objectAtIndex: 0];
	  NSString *n = [active nameForObject: o];
	  if ([n isEqual: @"NSOwner"] || [n isEqual: @"NSFirst"])
	    {
	      return NO;
	    }
	}

      return [selectionOwner respondsToSelector: @selector(deleteSelection)];
    }
  else if (sel_eq(action, @selector(paste:)))
    {
      if ([s count] == 0)
	return NO;
      else
	{
	  id	o = [s objectAtIndex: 0];
	  NSString *n = [active nameForObject: o];
	  if ([n isEqual: @"NSOwner"] || [n isEqual: @"NSFirst"])
	    {
	      return NO;
	    }
	}

      return [selectionOwner respondsToSelector: @selector(pasteInSelection)];
    }
  else if (sel_eq(action, @selector(setName:)))
    {
      NSString	*n;
      id	o;

      if ([s count] == 0)
	{
	  return NO;
	}
      if ([s count] > 1)
	{
	  return NO;
	}
      o = [s objectAtIndex: 0];
      n = [active nameForObject: o];

      if ([n isEqual: @"NSOwner"] || [n isEqual: @"NSFirst"]
	|| [n isEqual: @"NSFont"] || [n isEqual: @"NSMenu"])
	{
	  return NO;
	}
      else if(![active isTopLevelObject: o])
	{
	  return NO;
	}
    }
  else if(sel_eq(action, @selector(createSubclass:)) ||
	  sel_eq(action, @selector(loadClass:)) ||
	  sel_eq(action, @selector(createClassFiles:)) ||
	  sel_eq(action, @selector(instantiateClass:)) ||
	  sel_eq(action, @selector(addAttributeToClass:)) ||
	  sel_eq(action, @selector(remove:)))
    {
      if(active == nil)
	{
	  return NO;
	}

      if(![active isEditingClasses])
	{
	  return NO;
	}

      if(sel_eq(action, @selector(createSubclass:)))
	{
	  NSArray *s = [selectionOwner selection];
	  id o = nil;
	  NSString *name = nil;

	  if([s count] == 0 || [s count] > 1)
	    return NO;
	  
	  o = [s objectAtIndex: 0];
	  name = [o className];

	  if([active classIsSelected] == NO)
	    {
	      return NO;
	    }
	  
	  if([name isEqual: @"FirstResponder"])
	    return NO;
	}
      
      if(sel_eq(action, @selector(createClassFiles:)) || 
	 sel_eq(action, @selector(remove:)))
	{
	  id o = nil;
	  NSString *name = nil;

	  if ([s count] == 0)
	    {
	      return NO;
	    }
	  if ([s count] > 1)
	    {
	      return NO;
	    }

	  o = [s objectAtIndex: 0];
	  name = [o className];
	  if(![cm isCustomClass: name])
	    {
	      return NO;
	    }
	}

      if(sel_eq(action, @selector(instantiateClass:)))
	{
	  id o = nil;
	  NSString *name = nil;

	  if ([s count] == 0)
	    {
	      return NO;
	    }
	  if ([s count] > 1)
	    {
	      return NO;
	    }
	  
	  if([active classIsSelected] == NO)
	    {
	      return NO;
	    }
	  
	  o = [s objectAtIndex: 0];
	  name = [o className];
	  if(name != nil)
	    {
	      id cm = [self classManager];
	      return [cm canInstantiateClassNamed: name];
	    }
	}
    }
  else if(sel_eq(action, @selector(loadSound:)) ||
	  sel_eq(action, @selector(loadImage:)) ||
	  sel_eq(action, @selector(debug:)))
    {
      if(active == nil)
	{
	  return NO;
	}
    }

  return YES;
}

- (NSMenu*) classMenu
{
  return classMenu;
}

- (BOOL) documentNameIsUnique: (NSString *)filename
{
  NSEnumerator *en = [documents objectEnumerator];
  id document;
  BOOL unique = YES;

  while((document = [en nextObject]) != nil)
    {
      NSString *docPath = [document documentPath];
      if([docPath isEqual: filename])
	{
	  unique = NO;
	  break;
	}
    }
  
  return unique;
}

- (void) print: (id) sender
{
  [[self keyWindow] print: sender];
}
@end