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/*
NSButton.m
The button class
Copyright (C) 1996 Free Software Foundation, Inc.
Author: Scott Christley <scottc@net-community.com>
Date: 1996
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.
If you are interested in a warranty or support for this source code,
contact Scott Christley <scottc@net-community.com> for more information.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gnustep/gui/NSButton.h>
#include <gnustep/gui/NSWindow.h>
#include <gnustep/gui/NSButtonCell.h>
#include <gnustep/gui/NSApplication.h>
//
// class variables
//
id MB_NSBUTTON_CLASS;
//
// NSButton implementation
//
@implementation NSButton
//
// Class methods
//
+ (void)initialize
{
if (self == [NSButton class])
{
// Initial version
[self setVersion:1];
// Set our cell class to NSButtonCell
[self setCellClass:[NSButtonCell class]];
}
}
//
// Initializing the NSButton Factory
//
+ (Class)cellClass
{
return MB_NSBUTTON_CLASS;
}
+ (void)setCellClass:(Class)classId
{
MB_NSBUTTON_CLASS = classId;
}
//
// Instance methods
//
//
// Initialization
//
- init
{
return [self initWithFrame:NSZeroRect];
}
- initWithFrame:(NSRect)frameRect
{
[super initWithFrame:frameRect];
// set our cell
[[self cell] release];
[self setCell:[[MB_NSBUTTON_CLASS alloc] init]];
return self;
}
//
// Setting the Button Type
//
- (void)setType:(NSButtonType)aType
{
[cell setType:aType];
[self display];
}
//
// Identifying the Selected Cell
//
- (id)selectedCell
{
return cell;
}
//
// Setting the State
//
- (void)setState:(int)value
{
[cell setState:value];
[self display];
}
- (int)state
{
return [cell state];
}
//
// Setting the Repeat Interval
//
- (void)getPeriodicDelay:(float *)delay
interval:(float *)interval
{}
- (void)setPeriodicDelay:(float)delay
interval:(float)interval
{}
//
// Setting the Titles
//
- (NSString *)alternateTitle
{
return [cell alternateTitle];
}
- (void)setAlternateTitle:(NSString *)aString
{
[cell setAlternateTitle:aString];
[self display];
}
- (void)setTitle:(NSString *)aString
{
[cell setTitle:aString];
[self display];
}
- (NSString *)title
{
return [cell title];
}
//
// Setting the Images
//
- (NSImage *)alternateImage
{
return [cell alternateImage];
}
- (NSImage *)image
{
return [cell image];
}
- (NSCellImagePosition)imagePosition
{
return [cell imagePosition];
}
- (void)setAlternateImage:(NSImage *)anImage
{
[cell setAlternateImage:anImage];
[self display];
}
- (void)setImage:(NSImage *)anImage
{
[cell setImage:anImage];
[self display];
}
- (void)setImagePosition:(NSCellImagePosition)aPosition
{
[cell setImagePosition:aPosition];
[self display];
}
//
// Modifying Graphic Attributes
//
- (BOOL)isBordered
{
return [cell isBordered];
}
- (BOOL)isTransparent
{
return [cell isTransparent];
}
- (void)setBordered:(BOOL)flag
{
[cell setBordered:flag];
[self display];
}
- (void)setTransparent:(BOOL)flag
{
[cell setTransparent:flag];
[self display];
}
//
// Displaying
//
- (void)drawRect:(NSRect)rect
{
[cell drawWithFrame:rect inView:self];
}
- (void)highlight:(BOOL)flag
{
[cell highlight: flag withFrame: bounds inView: self];
}
//
// Setting the Key Equivalent
//
- (NSString *)keyEquivalent
{
return nil;
}
- (unsigned int)keyEquivalentModifierMask
{
return 0;
}
- (void)setKeyEquivalent:(NSString *)aKeyEquivalent
{}
- (void)setKeyEquivalentModifierMask:(unsigned int)mask
{}
//
// Handling Events and Action Messages
//
- (void)mouseDown:(NSEvent *)theEvent
{
NSApplication *theApp = [NSApplication sharedApplication];
BOOL mouseUp, done;
NSEvent *e;
unsigned int event_mask = NSLeftMouseDownMask | NSLeftMouseUpMask |
NSMouseMovedMask | NSLeftMouseDraggedMask | NSRightMouseDraggedMask;
NSDebugLog(@"NSButton mouseDown\n");
// If we are not enabled then ignore the mouse
if (![self isEnabled])
return;
// capture mouse
[[self window] captureMouse: self];
done = NO;
e = theEvent;
while (!done)
{
mouseUp = [cell trackMouse: e inRect: bounds
ofView:self untilMouseUp:YES];
e = [theApp currentEvent];
// If mouse went up then we are done
if ((mouseUp) || ([e type] == NSLeftMouseUp))
done = YES;
else
{
NSDebugLog(@"NSButton process another event\n");
e = [theApp nextEventMatchingMask:event_mask untilDate:nil
inMode:nil dequeue:YES];
}
}
// Release mouse
[[self window] releaseMouse: self];
// If the mouse went up in the button
if (mouseUp)
{
// Unhighlight the button
[cell highlight: NO withFrame: bounds
inView: self];
//
// Perform different state changes based upon our type
//
switch ([cell type])
{
case NSMomentaryChangeButton:
case NSPushOnPushOffButton:
case NSToggleButton:
case NSSwitchButton:
case NSRadioButton:
case NSOnOffButton:
// Toggle our state
if ([self state])
{
[self setState:0];
NSDebugLog(@"toggle state off\n");
}
else
{
[self setState:1];
NSDebugLog(@"toggle state on\n");
}
}
// Have the target perform the action
[self sendAction:[self action] to:[self target]];
}
}
- (void)performClick:(id)sender
{
[cell performClick:sender];
}
- (BOOL)performKeyEquivalent:(NSEvent *)anEvent
{
return NO;
}
//
// NSCoding protocol
//
- (void)encodeWithCoder:aCoder
{
[super encodeWithCoder:aCoder];
}
- initWithCoder:aDecoder
{
[super initWithCoder:aDecoder];
return self;
}
@end
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