InfoWindowController.m

/* Voyeur - InfoWindowController.m
 *
 * Author: Derek Clegg
 * Created 8 November 2002
 *
 * Copyright (c) 2003-2004 Apple Computer, Inc.
 * All rights reserved.
 */

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#import "InfoWindowController.h"
#import "VoyeurAppKitExtras.h"
#import "FontList.h"

@interface InfoWindowController (InfoWindowControllerInternal)
- (void)update;
- (void)setMainWindow:(NSWindow *)window;
- (void)mainWindowChanged:(NSNotification *)notification;
- (void)selectedNodeChanged:(NSNotification *)notification;
@end

@implementation InfoWindowController

+ (InfoWindowController *)sharedInfoWindowController
{
    static InfoWindowController *sharedInfoWindowController = nil;

    if (sharedInfoWindowController == nil)
	sharedInfoWindowController = [[InfoWindowController alloc] init];

    return sharedInfoWindowController;
}

- (id)init
{
    self = [self initWithWindowNibName:@"InfoWindowController"];
    if (self == nil)
	return nil;
	
    [self setWindowFrameAutosaveName:@"Info"];

    [(NSNotificationCenter *)[NSNotificationCenter defaultCenter]
	addObserver:self selector:@selector(selectedNodeChanged:)
	name:VoyeurNodeChangedNotification object:nil];

    return self;
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [super dealloc];
}

- (void)windowDidLoad
{
    [super windowDidLoad];

    [self setMainWindow:[NSApp mainWindow]];
    [self update];

    [(NSNotificationCenter *)[NSNotificationCenter defaultCenter]
	addObserver:self selector:@selector(mainWindowChanged:)
	name:NSWindowDidBecomeMainNotification object:nil];
}

@end

@implementation InfoWindowController (InfoWindowControllerInternal)

- (void)update
{
    NSImage *image;
    VoyeurNode *node;
    NSAttributedString *fontInfoString;

    node = [inspectedDocument selectedNode];
    if (node == nil) {
	[textView setFont:[NSFont fontWithName:@"Helvetica-Oblique" size:14]];
	[textView setString:@"No selection"];
    } else {
	[textView setFont:[NSFont fontWithName:@"Helvetica" size:14]];
	[textView setAttributedString:[node info]];
	if ([node image] != nil) {
	    image = [[NSImage alloc] init];
	    [image addRepresentation:[node image]];
	    [imageView setImage:image];
	    [image release];
	} else {
	    [imageView setImage:nil];
	}
	fontInfoString = [[[inspectedDocument dataSource] fonts] info];
	[fontTextView setAttributedString:fontInfoString];
    }
}

- (void)setMainWindow:(NSWindow *)window
{
    NSWindowController *controller;

    controller = [window windowController];
    if ([[controller document] isKindOfClass:[VoyeurDocument class]]) {
	inspectedDocument = [controller document];
    } else {
	inspectedDocument = nil;
    }
    [self update];
}

- (void)mainWindowChanged:(NSNotification *)notification
{
    [self setMainWindow:[notification object]];
}

- (void)selectedNodeChanged:(NSNotification *)notification
{
    [self update];
}

@end