/* NSView.m The view class which encapsulates all drawing functionality Copyright (C) 1996 Free Software Foundation, Inc. Author: Scott Christley Date: 1996 Author: Ovidiu Predescu . Date: 1997 Author: Felipe A. Rodriguez Date: August 1998 This file is part of the GNUstep GUI Library. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include @implementation NSView // // Class variables // static NSString *viewThreadKey = @"NSViewThreadKey"; // // Class methods // + (void)initialize { if (self == [NSView class]) { NSDebugLog(@"Initialize NSView class\n"); [self setVersion:1]; // Initial version } } + (NSView *)focusView { NSMutableDictionary *dict = [[NSThread currentThread] threadDictionary]; NSMutableArray *stack = [dict objectForKey: viewThreadKey]; NSView *current_view = nil; // return the view at if (stack) // the top of thread's { // focus stack or nil unsigned count = [stack count]; // if none is focused if (count > 0) current_view = [stack objectAtIndex: --count]; } return current_view; } // // Instance methods // - init { return [self initWithFrame:NSZeroRect]; } - (id)initWithFrame:(NSRect)frameRect { [super init]; // super is NSResponder frame = frameRect; // Set frame rectangle bounds.origin = NSZeroPoint; // Set bounds rectangle bounds.size = frame.size; frameMatrix = [PSMatrix new]; // init PS matrix for boundsMatrix = [PSMatrix new]; // frame and bounds [frameMatrix setFrameOrigin:frame.origin]; // initialize lists of: sub_views = [NSMutableArray new]; // subviews tracking_rects = [NSMutableArray new]; // tracking rectangles cursor_rects = [NSMutableArray new]; // cursor rectangles super_view = nil; window = nil; is_rotated_from_base = NO; is_rotated_or_scaled_from_base = NO; disable_autodisplay = NO; needs_display = YES; post_frame_changes = NO; autoresize_subviews = YES; autoresizingMask = NSViewNotSizable; return self; } - (void)dealloc { [frameMatrix release]; [boundsMatrix release]; [sub_views release]; [tracking_rects release]; [cursor_rects release]; [super dealloc]; } - (void)addSubview:(NSView *)aView { // make sure we are not if ([self isDescendantOf:aView]) // making self a subview of { // self NSLog(@"Operation addSubview: creates a loop in the views tree!\n"); return; } [aView viewWillMoveToWindow:window]; [aView setSuperview:self]; [aView setNextResponder:self]; [sub_views addObject:(id)aView]; // Add to our subview list } - (void)addSubview:(NSView *)aView // may not be per OS spec positioned:(NSWindowOrderingMode)place // FIX ME relativeTo:(NSView *)otherView { // make sure we aren't // making self a subview of if ([self isDescendantOf:aView]) // self thereby creating a { // loop in the heirarchy NSLog(@"addSubview:positioned:relativeTo: will create a cycle " @"in the views tree!\n"); return; } [sub_views addObject:(id)aView]; // Add to our subview list [aView setSuperview:self]; // Make ourselves the next [aView setNextResponder:self]; // responder of the view [aView viewWillMoveToWindow:window]; // Tell the view what } // window it has moved to - (NSView *)ancestorSharedWithView:(NSView *)aView { if (self == aView) // Are they the same view? return self; if ([self isDescendantOf: aView]) // Is self a descendant of return aView; // view? if ([aView isDescendantOf: self]) // Is view a descendant of return self; // self? if (![self superview]) // If neither are descendants of each other return nil; // and either does not have a superview if (![aView superview]) // then they cannot have a common ancestor return nil; // Find the common ancestor of superviews return [[self superview] ancestorSharedWithView: [aView superview]]; } - (BOOL)isDescendantOf:(NSView *)aView { if (aView == self) // Quick check return YES; if (!super_view) // No superview then this return NO; // is end of the line if (super_view == aView) return YES; return [super_view isDescendantOf:aView]; } - (NSView *)opaqueAncestor { if ([self isOpaque] || !super_view) return self; else return [super_view opaqueAncestor]; } - (void)removeFromSuperview { NSMutableArray *views; if (!super_view) // if no superview then return; // just return [self viewWillMoveToWindow:nil]; views = [super_view subviews]; [views removeObjectIdenticalTo:self]; super_view = nil; } - (void)replaceSubview:(NSView *)oldView with:(NSView *)newView { if (!newView) return; if (!oldView) [self addSubview:newView]; else { int index = [sub_views indexOfObjectIdenticalTo:oldView]; if (index != NSNotFound) { [oldView viewWillMoveToWindow:nil]; [oldView setSuperview:nil]; [newView setNextResponder:nil]; [sub_views replaceObjectAtIndex:index withObject:newView]; [newView viewWillMoveToWindow:window]; [newView setSuperview:self]; [newView setNextResponder:self]; } } } - (void)sortSubviewsUsingFunction:(int (*)(id ,id ,void *))compare context:(void *)context { [sub_views sortUsingFunction:compare context:context]; } - (void)viewWillMoveToWindow:(NSWindow *)newWindow { int i, count; window = newWindow; count = [sub_views count]; // Pass new window down for (i = 0; i < count; ++i) // to subviews [[sub_views objectAtIndex:i] viewWillMoveToWindow:newWindow]; } - (void)rotateByAngle:(float)angle { [boundsMatrix rotateByAngle:angle]; is_rotated_from_base = is_rotated_or_scaled_from_base = YES; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)setFrame:(NSRect)frameRect { NSSize old_size = bounds.size; frame = frameRect; bounds.size = frame.size; [frameMatrix setFrameOrigin:frame.origin]; [self resizeSubviewsWithOldSize: old_size]; // Resize the subviews if (post_frame_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewFrameDidChangeNotification object:self]; } - (void)setFrameOrigin:(NSPoint)newOrigin { frame.origin = newOrigin; [frameMatrix setFrameOrigin:frame.origin]; if (post_frame_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewFrameDidChangeNotification object:self]; } - (void)setFrameSize:(NSSize)newSize { NSSize old_size = bounds.size; frame.size = bounds.size = newSize; [self resizeSubviewsWithOldSize: old_size]; // Resize the subviews if (post_frame_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewFrameDidChangeNotification object:self]; } - (void)setFrameRotation:(float)angle { [frameMatrix setFrameRotation:angle]; is_rotated_from_base = is_rotated_or_scaled_from_base = YES; if (post_frame_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewFrameDidChangeNotification object:self]; } - (BOOL)isRotatedFromBase { if (is_rotated_from_base) return is_rotated_from_base; else if (super_view) return [super_view isRotatedFromBase]; else return NO; } - (BOOL)isRotatedOrScaledFromBase { if (is_rotated_or_scaled_from_base) return is_rotated_or_scaled_from_base; else if (super_view) return [super_view isRotatedOrScaledFromBase]; else return NO; } - (void)scaleUnitSquareToSize:(NSSize)newSize { if (!newSize.width) newSize.width = 1; if (!newSize.height) newSize.height = 1; bounds.size.width = frame.size.width / newSize.width; bounds.size.height = frame.size.height / newSize.height; is_rotated_or_scaled_from_base = YES; [boundsMatrix scaleBy:frame.size.width / bounds.size.width :frame.size.height / bounds.size.height]; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)setBounds:(NSRect)aRect { float sx, sy; bounds = aRect; [boundsMatrix setFrameOrigin: NSMakePoint(-bounds.origin.x, -bounds.origin.y)]; sx = frame.size.width / bounds.size.width; sy = frame.size.height / bounds.size.height; [boundsMatrix scaleTo:sx :sy]; if (sx != 1 || sy != 1) is_rotated_or_scaled_from_base = YES; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)setBoundsOrigin:(NSPoint)newOrigin // translate bounds origin { // in opposite direction so bounds.origin = newOrigin; // that newOrigin becomes // the origin when viewed. [boundsMatrix setFrameOrigin:NSMakePoint(-newOrigin.x, -newOrigin.y)]; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)setBoundsSize:(NSSize)newSize { float sx, sy; bounds.size = newSize; sx = frame.size.width / bounds.size.width; sy = frame.size.height / bounds.size.height; [boundsMatrix scaleTo:sx :sy]; if (sx != 1 || sy != 1) is_rotated_or_scaled_from_base = YES; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)setBoundsRotation:(float)angle { [boundsMatrix setFrameRotation:angle]; is_rotated_from_base = is_rotated_or_scaled_from_base = YES; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (void)translateOriginToPoint:(NSPoint)point { [boundsMatrix translateToPoint:point]; if (post_bounds_changes) [[NSNotificationCenter defaultCenter] postNotificationName:NSViewBoundsDidChangeNotification object:self]; } - (NSRect)centerScanRect:(NSRect)aRect { return NSZeroRect; } - (PSMatrix*)_concatenateMatricesInReverseOrderFromPath:(NSArray*)viewsPath { int i, count = [viewsPath count]; PSMatrix* matrix = [[PSMatrix new] autorelease]; for (i = count - 1; i >= 0; i--) { NSView* view = [viewsPath objectAtIndex:i]; [matrix concatenateWith:view->frameMatrix]; [matrix concatenateWith:view->boundsMatrix]; } return matrix; } - (NSArray*)_pathBetweenSubview:(NSView*)subview toSuperview:(NSView*)_superview { NSMutableArray* array = [NSMutableArray array]; NSView* view = subview; while (view && view != _superview) { [array addObject:view]; view = view->super_view; } return array; } - (NSPoint)convertPoint:(NSPoint)aPoint fromView:(NSView*)aView { NSPoint new; PSMatrix* matrix; if (!aView) aView = [window contentView]; if ([self isDescendantOf:aView]) { NSArray* path = [self _pathBetweenSubview:self toSuperview:aView]; matrix = [self _concatenateMatricesInReverseOrderFromPath:path]; [matrix inverse]; new = [matrix pointInMatrixSpace:aPoint]; } else if ([aView isDescendantOf:self]) { NSArray* path = [self _pathBetweenSubview:aView toSuperview:self]; matrix = [self _concatenateMatricesInReverseOrderFromPath:path]; new = [matrix pointInMatrixSpace:aPoint]; } // The views are not in the same hierarchy of views. else // Convert the point to window from the other's view { // coordinates and then to our view coordinates. new = [aView convertPoint:aPoint toView:nil]; new = [self convertPoint:new fromView:nil]; } return new; } - (NSPoint)convertPoint:(NSPoint)aPoint toView:(NSView *)aView { if (!aView) aView = [window contentView]; return [aView convertPoint:aPoint fromView:self]; } - (NSRect)convertRect:(NSRect)aRect fromView:(NSView *)aView { NSRect r; if (aView && window != [aView window]) // Must belong to the return NSZeroRect; // same window r = aRect; r.origin = [self convertPoint:r.origin fromView:aView]; r.size = [self convertSize:r.size fromView:aView]; return r; } - (NSRect)convertRect:(NSRect)aRect toView:(NSView *)aView { NSRect r; if (aView && window != [aView window]) // Must belong to the return NSZeroRect; // same window r = aRect; r.origin = [self convertPoint:r.origin toView:aView]; r.size = [self convertSize:r.size toView:aView]; return r; } - (PSMatrix*)_concatenateBoundsMatricesInReverseOrderFromPath:(NSArray*)viewsPath { int i, count = [viewsPath count]; PSMatrix* matrix = [[PSMatrix new] autorelease]; for (i = count - 1; i >= 0; i--) { NSView* view = [viewsPath objectAtIndex:i]; [matrix concatenateWith:view->boundsMatrix]; } return matrix; } - (NSSize)convertSize:(NSSize)aSize fromView:(NSView *)aView { NSSize new; PSMatrix* matrix; if (!aView) aView = [window contentView]; if ([self isDescendantOf:aView]) { NSArray* path = [self _pathBetweenSubview:self toSuperview:aView]; matrix = [self _concatenateBoundsMatricesInReverseOrderFromPath:path]; [matrix inverse]; new = [matrix sizeInMatrixSpace:aSize]; } else if ([aView isDescendantOf:self]) { NSArray* path = [self _pathBetweenSubview:aView toSuperview:self]; matrix = [self _concatenateBoundsMatricesInReverseOrderFromPath:path]; new = [matrix sizeInMatrixSpace:aSize]; } // The views are not in the same hierarchy of views. else // Convert the point to window from the other's view { // coordinates and then to our view coordinates. new = [aView convertSize:aSize toView:nil]; new = [self convertSize:new fromView:nil]; } return new; } - (NSSize)convertSize:(NSSize)aSize toView:(NSView *)aView { if (!aView) aView = [window contentView]; return [aView convertSize:aSize fromView:self]; } - (void)setPostsFrameChangedNotifications:(BOOL)flag { post_frame_changes = flag; } - (void)setPostsBoundsChangedNotifications:(BOOL)flag { post_bounds_changes = flag; } - (void)resizeSubviewsWithOldSize:(NSSize)oldSize { id e, o; if (![self autoresizesSubviews]) // Are we suppose to return; // resize our subviews? e = [sub_views objectEnumerator]; o = [e nextObject]; while (o) { NSRect b = [o bounds]; NSSize old_size = b.size; // Resize the subview // Then tell it to [o resizeWithOldSuperviewSize: oldSize]; // resize it's subviews [o resizeSubviewsWithOldSize: old_size]; o = [e nextObject]; } } - (void)resizeWithOldSuperviewSize:(NSSize)oldSize // preliminary FIX ME { if(autoresizingMask == NSViewNotSizable) return; // view not resizable if(autoresizingMask & NSViewWidthSizable) // width resizable? { frame.size.width = [super_view frame].size.width; } else // width is not resizable, so check { // if left margin can be stretched if(autoresizingMask & NSViewMinXMargin) frame.origin.x += [super_view frame].size.width - oldSize.width; } if(autoresizingMask & NSViewHeightSizable) // height resizable? { frame.size.height = [super_view frame].size.height; } else // height is not resizable so check { // if bottom margin can be stretchd if(autoresizingMask & NSViewMinYMargin) frame.origin.y += [super_view frame].size.height - oldSize.height; // if(autoresizingMask & NSViewMaxYMargin) // frame.origin.y = [super_view frame].origin.y; } fprintf (stderr, "NSView resizeWithOldSuperviewSize: \n"); fprintf (stderr, "NSView: frame origin (%1.2f, %1.2f), size (%1.2f, %1.2f)\n", frame.origin.x, frame.origin.y, frame.size.width, frame.size.height); fprintf (stderr, "NSView: old size (%1.2f, %1.2f)\n", oldSize.width, oldSize.height); } - (void)allocateGState {} // implemented by the - (void)releaseGState {} // back end - (int)gState { return 0; } - (void)renewGState {} - (void)setUpGState {} - (void)lockFocus { [self subclassResponsibility:_cmd]; } - (void)unlockFocus { [self subclassResponsibility:_cmd]; } - (BOOL)canDraw { // not implemented per if(window) // OS spec FIX ME return YES; else return NO; } - (void)display // not per spec FIX ME { if(!window) // do nothing if not in return; // a window's heirarchy [self displayRect:[self visibleRect]]; // display visible rect } - (void)displayIfNeeded // if self is opaque { // display if needed if ([self isOpaque]) // else back up to a [self displayIfNeededIgnoringOpacity]; // view which is and else // begin drawing there { if(needs_display) { NSView *firstOpaque = [self opaqueAncestor]; NSRect rect; if(invalidatedRectangle.size.width > 0 && invalidatedRectangle.size.height > 0) rect = invalidatedRectangle; else // convert rect into rect = bounds; // coordinates of the // first opaque view rect = [firstOpaque convertRect:rect fromView:self]; [firstOpaque displayIfNeededInRectIgnoringOpacity:rect]; } } } - (void)displayIfNeededInRect:(NSRect)aRect { // of our sub views if } - (void)displayIfNeededInRectIgnoringOpacity:(NSRect)aRect { // of our sub views if int i = 0, count; // any part of self has // been marked to be in for (count = [sub_views count]; i < count; ++i) // need of display with { // setNeedsDisplay or NSView* subview = [sub_views objectAtIndex:i]; // stNeedsDisplayInRect if(subview->needs_display) { NSRect rect = subview->invalidatedRectangle; if(rect.size.width > 0 && rect.size.height > 0) [subview displayRect:rect]; // display invalid rect else [subview displayIfNeededIgnoringOpacity]; } // subview must contain } // a view in need of } // display - (void)displayIfNeededIgnoringOpacity { int i = 0, count; // display self and all // of our sub views if if(!window) // any part of self has return; // been marked to be in // need of display with if (needs_display) // setNeedsDisplay or { // stNeedsDisplayInRect if(invalidatedRectangle.size.width > 0 && invalidatedRectangle.size.height > 0) [self displayRect:invalidatedRectangle]; // display invalid rect else needs_display = NO; } for (count = [sub_views count]; i < count; ++i) { NSView* subview = [sub_views objectAtIndex:i]; if(subview->needs_display) [subview displayIfNeededIgnoringOpacity]; // subview contains a } // view needing display } - (void)displayRect:(NSRect)rect // not per spec FIX ME { int i, count; if (!boundsMatrix || !frameMatrix) NSLog (@"warning: %@ %p does not have it's PS matrices configured!", NSStringFromClass(isa), self); needs_display = NO; invalidatedRectangle = NSZeroRect; // Reset invalid rect [self lockFocus]; [self drawRect:rect]; [self unlockFocus]; // Tell subviews to display for (i = 0, count = [sub_views count]; i < count; ++i) { NSView* subview = [sub_views objectAtIndex:i]; NSRect subviewFrame = subview->frame; NSRect intersection; // If the subview is rotated compute // its bounding rectangle and use this // one instead of the subview's frame. if ([subview->frameMatrix isRotated]) [subview->frameMatrix boundingRectFor:subviewFrame result:&subviewFrame]; // Determine if the subview's frame // intersects "rect" so that we can // display the subview. intersection = NSIntersectionRect (rect, subviewFrame); if (intersection.origin.x || intersection.origin.y || intersection.size.width || intersection.size.height) { // Convert the intersection rectangle // to the subview's coordinates intersection = [subview convertRect:intersection fromView:self]; [subview displayRect:intersection]; } } } - (void)displayRectIgnoringOpacity:(NSRect)aRect {} - (void)drawRect:(NSRect)rect {} - (NSRect)visibleRect { // if no super view if (!super_view) // bounds is visible return bounds; else // return intersection { // between bounds and NSRect superviewsVisibleRect; // super view's visible // rect superviewsVisibleRect = [self convertRect:[super_view visibleRect] fromView:super_view]; return NSIntersectionRect(superviewsVisibleRect, bounds); } } - (void)setNeedsDisplay:(BOOL)flag { needs_display = flag; if (needs_display) { NSView *firstOpaque = [self opaqueAncestor]; NSView* currentView = super_view; NSRect rect; // convert rect into // coordinates of the // first opaque view rect = [firstOpaque convertRect:bounds fromView:self]; [firstOpaque setNeedsDisplayInRect:rect]; invalidatedRectangle = bounds; [window setViewsNeedDisplay:YES]; while (currentView) // set needs display { // flag all the way up currentView->needs_display = YES; // the view heirarchy currentView = currentView->super_view; } } else invalidatedRectangle = NSZeroRect; } - (void)setNeedsDisplayInRect:(NSRect)rect // not per spec FIX ME { // assumes opaque view NSView* currentView = super_view; needs_display = YES; invalidatedRectangle = NSUnionRect (invalidatedRectangle, rect); [window setViewsNeedDisplay:YES]; while (currentView) // set needs display { // flag all the way up currentView->needs_display = YES; // the view heirarchy currentView = currentView->super_view; } // fprintf (stderr, // "setNeedsDisplayInRect: rect origin (%1.2f, %1.2f), size (%1.2f, %1.2f)\n", // rect.origin.x, rect.origin.y, // rect.size.width, rect.size.height); } - (NSRect)_boundingRectFor:(NSRect)rect { NSRect new; [frameMatrix boundingRectFor:rect result:&new]; return new; } // // Scrolling // - (NSRect)adjustScroll:(NSRect)newVisible { return NSZeroRect; } - (BOOL)autoscroll:(NSEvent *)theEvent { if (super_view) return [super_view autoscroll:theEvent]; return NO; } - (void)reflectScrolledClipView:(NSClipView *)aClipView {} - (void)scrollClipView:(NSClipView *)aClipView toPoint:(NSPoint)aPoint {} - (void)scrollPoint:(NSPoint)aPoint {} - (void)scrollRect:(NSRect)aRect by:(NSSize)delta {} - (BOOL)scrollRectToVisible:(NSRect)aRect { return NO; } // // Managing the Cursor // // We utilize the tracking rectangle class // to also maintain the cursor rects // - (void)addCursorRect:(NSRect)aRect cursor:(NSCursor *)anObject { TrackingRectangle *m; m = [[[TrackingRectangle alloc] initWithRect: aRect tag: 0 owner: anObject userData: NULL inside: YES] autorelease]; [cursor_rects addObject:m]; } - (void)discardCursorRects { [cursor_rects removeAllObjects]; } - (void)removeCursorRect:(NSRect)aRect cursor:(NSCursor *)anObject { id e = [cursor_rects objectEnumerator]; TrackingRectangle *o; NSCursor *c; o = [e nextObject]; // Base remove test while (o) // upon cursor object { c = [o owner]; if (c == anObject) { [cursor_rects removeObject: o]; break; } else o = [e nextObject]; } } - (void)resetCursorRects {} - (id)viewWithTag:(int)aTag { int i, count; count = [sub_views count]; for (i = 0; i < count; ++i) { id view = [sub_views objectAtIndex:i]; if ([view tag] == aTag) return view; } return nil; } // // Aiding Event Handling // - (BOOL)acceptsFirstMouse:(NSEvent *)theEvent { return NO; } - (NSView *)hitTest:(NSPoint)aPoint { NSPoint p; int i, count; NSView *v = nil, *w; // If not within our frame if (![self mouse:aPoint inRect:frame]) // then immediately return return nil; p = [self convertPoint:aPoint fromView:super_view]; count = [sub_views count]; // Check our sub_views for (i = count - 1; i >= 0; i--) { w = [sub_views objectAtIndex:i]; v = [w hitTest:p]; if (v) break; } if (v) // mouse is either in the return v; // subview or within self else return self; } - (BOOL)mouse:(NSPoint)aPoint inRect:(NSRect)aRect { if (aPoint.x < aRect.origin.x) return NO; if (aPoint.y < aRect.origin.y) return NO; if (aPoint.x > (aRect.origin.x + aRect.size.width)) return NO; if (aPoint.y > (aRect.origin.y + aRect.size.height)) return NO; return YES; } - (BOOL)performKeyEquivalent:(NSEvent *)theEvent { return NO; } - (void)removeTrackingRect:(NSTrackingRectTag)tag { int i, j; TrackingRectangle *m; j = [tracking_rects count]; for (i = 0;i < j; ++i) { m = (TrackingRectangle *)[tracking_rects objectAtIndex:i]; if ([m tag] == tag) { [tracking_rects removeObjectAtIndex:i]; return; } } } - (BOOL)shouldDelayWindowOrderingForEvent:(NSEvent *)anEvent { return NO; } - (NSTrackingRectTag)addTrackingRect:(NSRect)aRect owner:(id)anObject userData:(void *)data assumeInside:(BOOL)flag { NSTrackingRectTag t; int i, j; TrackingRectangle *m; t = 0; j = [tracking_rects count]; for (i = 0;i < j; ++i) { m = (TrackingRectangle *)[tracking_rects objectAtIndex:i]; if ([m tag] > t) t = [m tag]; } ++t; m = [[[TrackingRectangle alloc] initWithRect:aRect tag:t owner:anObject userData:data inside:flag] autorelease]; [tracking_rects addObject:m]; return t; } - (NSArray *)trackingRectangles { return tracking_rects; } // // Dragging // - (BOOL)dragFile:(NSString *)filename fromRect:(NSRect)rect slideBack:(BOOL)slideFlag event:(NSEvent *)event { return NO; } - (void)dragImage:(NSImage *)anImage // initiate a dragging at:(NSPoint)viewLocation // session offset:(NSSize)initialOffset event:(NSEvent *)event pasteboard:(NSPasteboard *)pboard source:(id)sourceObject slideBack:(BOOL)slideFlag {} - (void)registerForDraggedTypes:(NSArray *)newTypes {} - (void)unregisterDraggedTypes {} // // Printing // - (NSData *)dataWithEPSInsideRect:(NSRect)aRect { return nil; } - (void)fax:(id)sender {} - (void)print:(id)sender {} - (void)writeEPSInsideRect:(NSRect)rect toPasteboard:(NSPasteboard *)pasteboard {} // // Pagination // - (void)adjustPageHeightNew:(float *)newBottom top:(float)oldTop bottom:(float)oldBottom limit:(float)bottomLimit {} - (void)adjustPageWidthNew:(float *)newRight left:(float)oldLeft right:(float)oldRight limit:(float)rightLimit {} - (float)heightAdjustLimit { return 0; } - (BOOL)knowsPagesFirst:(int *)firstPageNum last:(int *)lastPageNum { return NO; } - (NSPoint)locationOfPrintRect:(NSRect)aRect { return NSZeroPoint; } - (NSRect)rectForPage:(int)page { return NSZeroRect; } - (float)widthAdjustLimit { return 0; } // // Writing Conforming PostScript // - (void)addToPageSetup {} - (void)beginPage:(int)ordinalNum label:(NSString *)aString bBox:(NSRect)pageRect fonts:(NSString *)fontNames {} - (void)beginPageSetupRect:(NSRect)aRect placement:(NSPoint)location {} - (void)beginPrologueBBox:(NSRect)boundingBox creationDate:(NSString *)dateCreated createdBy:(NSString *)anApplication fonts:(NSString *)fontNames forWhom:(NSString *)user pages:(int)numPages title:(NSString *)aTitle {} - (void)beginSetup {} // not implemented - (void)beginTrailer {} - (void)drawPageBorderWithSize:(NSSize)borderSize {} - (void)drawSheetBorderWithSize:(NSSize)borderSize {} - (void)endHeaderComments {} - (void)endPrologue {} - (void)endSetup {} - (void)endPageSetup {} - (void)endPage {} - (void)endTrailer {} // // NSCoding protocol // - (void)encodeWithCoder:aCoder { [super encodeWithCoder:aCoder]; NSDebugLog(@"NSView: start encoding\n"); [aCoder encodeRect: frame]; [aCoder encodeRect: bounds]; [aCoder encodeConditionalObject:super_view]; [aCoder encodeObject: sub_views]; [aCoder encodeConditionalObject:window]; [aCoder encodeObject: tracking_rects]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &is_rotated_from_base]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &is_rotated_or_scaled_from_base]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &needs_display]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &disable_autodisplay]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &post_frame_changes]; [aCoder encodeValueOfObjCType:@encode(BOOL) at: &autoresize_subviews]; NSDebugLog(@"NSView: finish encoding\n"); } - initWithCoder:aDecoder { [super initWithCoder:aDecoder]; NSDebugLog(@"NSView: start decoding\n"); frame = [aDecoder decodeRect]; bounds = [aDecoder decodeRect]; super_view = [aDecoder decodeObject]; sub_views = [aDecoder decodeObject]; window = [aDecoder decodeObject]; tracking_rects = [aDecoder decodeObject]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &is_rotated_from_base]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &is_rotated_or_scaled_from_base]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &needs_display]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &disable_autodisplay]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &post_frame_changes]; [aDecoder decodeValueOfObjCType:@encode(BOOL) at: &autoresize_subviews]; NSDebugLog(@"NSView: finish decoding\n"); return self; } // // Accessor methods // - (void)setAutoresizesSubviews:(BOOL)flag { autoresize_subviews = flag; } - (void)setAutoresizingMask:(unsigned int)mask { autoresizingMask = mask; } - (NSWindow *)window { return window; } - (BOOL)autoresizesSubviews { return autoresize_subviews; } - (unsigned int)autoresizingMask { return autoresizingMask; } - (NSMutableArray *)subviews { return sub_views; } - (NSView *)superview { return super_view; } - (void)setSuperview:(NSView *)superview { super_view = superview; } - (BOOL)shouldDrawColor { return YES; } - (BOOL)isOpaque { return NO; } - (BOOL)needsDisplay { return needs_display; } - (int)tag { return -1; } - (NSArray *)cursorRectangles { return cursor_rects; } - (BOOL)isFlipped { return NO; } - (NSRect)bounds { return bounds; } - (NSRect)frame { return frame; } - (float)boundsRotation { return [boundsMatrix rotationAngle]; } - (float)frameRotation { return [frameMatrix rotationAngle]; } - (PSMatrix*)_boundsMatrix { return boundsMatrix; } - (PSMatrix*)_frameMatrix { return frameMatrix; } - (BOOL)postsFrameChangedNotifications { return post_frame_changes; } - (BOOL)postsBoundsChangedNotifications { return post_bounds_changes; } @end