File: programming/cocoa/MacScare-Source.zip/MacScare-Source/GlkTextView.m

//
//  GlkTextView.m
//  CocoaGlk
//
//  Created by Andrew Hunter on Sun Jun 15 2003.
//  Copyright (c) 2003 Andrew Hunter. All rights reserved.
//
 
#import "GlkTextView.h"
#import "GlkImage.h"
 
 
@implementation GlkTextView
 
- (id) initWithFrame: (NSRect) frame
       textContainer: (NSTextContainer*) container
           glkWindow: (GlkWindow*) win {
    self = [super initWithFrame: frame
                  textContainer: container];
 
    if (self) {
        glkWin = win;
    }
 
    return self;
}
 
- (void)keyDown:(NSEvent *)theEvent {
    if (![glkWin handleKeyDown: theEvent]) {
        [super keyDown: theEvent];
    }
}
 
- (void) drawRect: (NSRect) rect {
    [super drawRect: rect];
    
    // Draw any images that need drawing
    // For each image..
    NSEnumerator* imgEnum = [[glkWin inlineImages] objectEnumerator];
    GlkImage*     img;
 
    while (img = [imgEnum nextObject]) {
        // Retrieve/calculate the bounds of this image
        NSRect theseBounds = [img bounds];
 
        // If it intersects, then update the notification about which
        // overlap image we're dealing with
        if (NSIntersectsRect(theseBounds, rect)) {
            NSImage* drawMe = [img image];
 
            [drawMe setFlipped: YES];
 
            [drawMe drawInRect: theseBounds
                      fromRect: NSMakeRect(0,0,
                                           [drawMe size].width,
                                           [drawMe size].height)
                     operation: NSCompositeSourceOver
                      fraction: 1.0];
 
            [drawMe setFlipped: NO];
        }
 
        if (theseBounds.origin.y > NSMaxY(rect)) {
            // No following images
            break;
        }
    }
}
 
@end