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NeXTSTEP 3.0
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Examples
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AppKit
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BusyBox
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BusyBoxApp.m
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1992-06-16
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/*
* This subclass only adds a few responsibilities to the Application
* class. It loads the info and preferences panels on demand,
* and overrides sendEvent: to watch for control-mouseDown events
* which it vectors off to the help object.
*
* Author: Julie Zelenski, NeXT Developer Support
* You may freely copy, distribute and reuse the code in this example.
* NeXT disclaims any warranty of any kind, expressed or implied, as to
* its fitness for any particular use.
*/
#import <appkit/appkit.h>
#import "BusyBoxApp.h"
#import "Help.h"
#import <strings.h>
#import <libc.h> // for chdir, getwd
@implementation BusyBoxApp
/* TARGET/ACTION METHODS */
- info:sender
/*
* The info panel is a separate nib module and only loaded on demand.
*/
{(' if (!infoPanel) {
if (![self loadNibSection:"InfoPanel.nib" owner:self withNames:NO]) {
NXLogError ("Could not load InfoPanel.nib");
}
}
[infoPanel makeKeyAndOrderFront:self];
return self;
}
- preferences:sender
/*
* The preferences panel is a separate nib module and only loaded on demand.
*/
{
if (!prefPanel) {
if (![self loadNibSection:"PrefPanel.nib" owner:self withNames:NO]) {
NXLogError ("Could not load PrefPanel.nib");
}
}
[prefPanel makeKeyAndOrderFront:self];
return self;
}
- appDidInit:sender;
/* Upon starting, app asks Help object to bring up help panel and display the
* general help information.
*/
{
[helpObject generalHelp:self];
return self;
}
- sendEvent:(NXEvent *)event;
/* I override sendEvent: so that I can snarf control-mouseDown events.
* When the user holds Control key down and clicks on something, this
* method will figure out which window received the click, finds the
* view which is directly under the mouse down, and passes that information
* to the help object who will display the appropriate help file. If this
* isn't a control-mouseDown event, I just call the super Application
* sendEvent: method to handle the event normally.
*/
{
id window,view;
if ((event->type == NX_LMOUSEDOWN) && (event->flags & NX_CONTROLMASK)) {
window = [self findWindow:event->window];
view = [[window contentView] hitTest:&event->location];
if (view) [helpObject helpForView:view atPoint:&event->location];
else [helpObject helpForWindow:window];
}
else [super sendEvent:event];
return self;
}
@end