git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3942 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 1999-03-16 22:43:34 +00:00
parent fea1c9e358
commit 80dbb9b1fc
2 changed files with 218 additions and 202 deletions

View file

@ -7,14 +7,14 @@
Date: September 1997
Author: Felipe A. Rodriguez <far@ix.netcom.com>
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
@ -37,254 +37,268 @@
static Class cellClass;
+ (void)initialize
+ (void) initialize
{
if (self == [NSSlider class])
{
// Initial version
[self setVersion:1];
[self setVersion: 1];
// Set our cell class to NSSliderCell
[self setCellClass:[NSSliderCell class]];
[self setCellClass: [NSSliderCell class]];
}
}
+ (void)setCellClass:(Class)class { cellClass = class; }
+ (Class)cellClass { return cellClass; }
+ (void) setCellClass: (Class)class
{
cellClass = class;
}
- initWithFrame:(NSRect)frameRect
+ (Class) cellClass
{
return cellClass;
}
- (id) initWithFrame: (NSRect)frameRect
{
NSSliderCell* theCell = [[[isa cellClass] new] autorelease];
[super initWithFrame:frameRect];
[super initWithFrame: frameRect];
// set our cell
[self setCell:theCell];
[theCell setState:1];
[self setCell: theCell];
[theCell setState: 1];
return self;
}
- (NSImage *)image
- (NSImage *) image
{
return [[self cell] image];
}
- (int)isVertical
- (int) isVertical
{
return [[self cell] isVertical];
}
- (float)knobThickness
- (float) knobThickness
{
return [[self cell] knobThickness];
}
- (void)setImage:(NSImage *)backgroundImage
- (void) setImage: (NSImage *)backgroundImage
{
[[self cell] setImage:backgroundImage];
[[self cell] setImage: backgroundImage];
}
- (void)setKnobThickness:(float)aFloat
- (void) setKnobThickness: (float)aFloat
{
[[self cell] setKnobThickness:aFloat];
[[self cell] setKnobThickness: aFloat];
}
- (void)setTitle:(NSString *)aString
- (void) setTitle: (NSString *)aString
{
[[self cell] setTitle:aString];
[[self cell] setTitle: aString];
}
- (void)setTitleCell:(NSCell *)aCell
- (void) setTitleCell: (NSCell *)aCell
{
[[self cell] setTitleCell:aCell];
[[self cell] setTitleCell: aCell];
}
- (void)setTitleColor:(NSColor *)aColor
- (void) setTitleColor: (NSColor *)aColor
{
[[self cell] setTitleColor:aColor];
[[self cell] setTitleColor: aColor];
}
- (void)setTitleFont:(NSFont *)fontObject
- (void) setTitleFont: (NSFont *)fontObject
{
[[self cell] setTitleFont:fontObject];
[[self cell] setTitleFont: fontObject];
}
- (NSString *)title
- (NSString *) title
{
return [[self cell] title];
}
- (id)titleCell
- (id) titleCell
{
return [[self cell] titleCell];
}
- (NSColor *)titleColor
- (NSColor *) titleColor
{
return [[self cell] titleColor];
}
- (NSFont *)titleFont
- (NSFont *) titleFont
{
return [[self cell] titleFont];
}
- (double)maxValue
- (double) maxValue
{
return [[self cell] maxValue];
}
- (double)minValue
- (double) minValue
{
return [[self cell] minValue];
}
- (void)setMaxValue:(double)aDouble
- (void) setMaxValue: (double)aDouble
{
[[self cell] setMaxValue:aDouble];
[[self cell] setMaxValue: aDouble];
}
- (void)setMinValue:(double)aDouble
- (void) setMinValue: (double)aDouble
{
[[self cell] setMinValue:aDouble];
[[self cell] setMinValue: aDouble];
}
- (BOOL)acceptsFirstMouse:(NSEvent *)theEvent
- (BOOL) acceptsFirstMouse: (NSEvent *)theEvent
{
return YES;
}
- (void)drawRect:(NSRect)rect
- (void) drawRect: (NSRect)rect
{
[[self cell] drawWithFrame:rect inView:self];
[[self cell] drawWithFrame: rect inView: self];
}
- (float)_floatValueForMousePoint:(NSPoint)point knobRect:(NSRect)knobRect
- (float)_floatValueForMousePoint: (NSPoint)point knobRect: (NSRect)knobRect
{
NSSliderCell* theCell = [self cell];
NSRect slotRect = [theCell trackRect];
BOOL isVertical = [theCell isVertical];
float minValue = [theCell minValue];
float maxValue = [theCell maxValue];
float floatValue = 0;
float position;
NSSliderCell* theCell = [self cell];
NSRect slotRect = [theCell trackRect];
BOOL isVertical = [theCell isVertical];
float minValue = [theCell minValue];
float maxValue = [theCell maxValue];
float floatValue = 0;
float position;
if (isVertical)
{ // Adjust the point to lie inside the knob slot. We don't
// have to worry whether the view is flipped or not.
if (point.y < slotRect.origin.y + knobRect.size.height / 2)
position = slotRect.origin.y + knobRect.size.height / 2;
else
if (point.y > slotRect.origin.y + slotRect.size.height
- knobRect.size.height / 2)
position = slotRect.origin.y + slotRect.size.height
- knobRect.size.height / 2;
else
position = point.y;
// Compute the float value
floatValue = (position - (slotRect.origin.y + knobRect.size.height/2))
/ (slotRect.size.height - knobRect.size.height);
if ([self isFlipped])
floatValue = 1 - floatValue;
}
else
{ // Adjust the point to lie inside the knob slot
if (point.x < slotRect.origin.x + knobRect.size.width / 2)
position = slotRect.origin.x + knobRect.size.width / 2;
else
if (point.x > slotRect.origin.x + slotRect.size.width
- knobRect.size.width / 2)
position = slotRect.origin.x + slotRect.size.width
- knobRect.size.width / 2;
else
position = point.x;
// Compute the float value
// given the knob size
floatValue = (position - (slotRect.origin.x + knobRect.size.width / 2))
/ (slotRect.size.width - knobRect.size.width);
}
// Adjust the point to lie inside the knob slot. We don't
// have to worry whether the view is flipped or not.
if (isVertical)
{
if (point.y < slotRect.origin.y + knobRect.size.height / 2)
{
position = slotRect.origin.y + knobRect.size.height / 2;
}
else if (point.y > slotRect.origin.y + slotRect.size.height
- knobRect.size.height / 2)
{
position = slotRect.origin.y + slotRect.size.height
- knobRect.size.height / 2;
}
else
position = point.y;
// Compute the float value
floatValue = (position - (slotRect.origin.y + knobRect.size.height/2))
/ (slotRect.size.height - knobRect.size.height);
if ([self isFlipped])
floatValue = 1 - floatValue;
}
else
{
if (point.x < slotRect.origin.x + knobRect.size.width / 2)
{
position = slotRect.origin.x + knobRect.size.width / 2;
}
else if (point.x > slotRect.origin.x + slotRect.size.width
- knobRect.size.width / 2)
{
position = slotRect.origin.x + slotRect.size.width
- knobRect.size.width / 2;
}
else
position = point.x;
return floatValue * (maxValue - minValue) + minValue;
// Compute the float value given the knob size
floatValue = (position - (slotRect.origin.x + knobRect.size.width / 2))
/ (slotRect.size.width - knobRect.size.width);
}
return floatValue * (maxValue - minValue) + minValue;
}
- (void)trackKnob:(NSEvent*)theEvent knobRect:(NSRect)knobRect
- (void) trackKnob: (NSEvent*)theEvent knobRect: (NSRect)knobRect
{
NSApplication *app = [NSApplication sharedApplication];
unsigned int eventMask = NSLeftMouseDownMask | NSLeftMouseUpMask
| NSLeftMouseDraggedMask | NSMouseMovedMask
| NSPeriodicMask;
NSPoint point = [self convertPoint:[theEvent locationInWindow] fromView:nil];
NSEventType eventType = [theEvent type];
BOOL isContinuous = [self isContinuous];
NSSliderCell* theCell = [self cell];
float oldFloatValue = [theCell floatValue];
id target = [theCell target];
SEL action = [theCell action];
NSApplication *app = [NSApplication sharedApplication];
unsigned int eventMask = NSLeftMouseDownMask | NSLeftMouseUpMask
| NSLeftMouseDraggedMask | NSMouseMovedMask
| NSPeriodicMask;
NSPoint point = [self convertPoint: [theEvent locationInWindow] fromView: nil];
NSEventType eventType = [theEvent type];
BOOL isContinuous = [self isContinuous];
NSSliderCell* theCell = [self cell];
float oldFloatValue = [theCell floatValue];
id target = [theCell target];
SEL action = [theCell action];
[NSEvent startPeriodicEventsAfterDelay:0.05 withPeriod:0.05];
[[NSRunLoop currentRunLoop] limitDateForMode:NSEventTrackingRunLoopMode];
[NSEvent startPeriodicEventsAfterDelay: 0.05 withPeriod: 0.05];
[[NSRunLoop currentRunLoop] limitDateForMode: NSEventTrackingRunLoopMode];
while (eventType != NSLeftMouseUp)
while (eventType != NSLeftMouseUp)
{
theEvent = [app nextEventMatchingMask: eventMask
untilDate: [NSDate distantFuture]
inMode: NSEventTrackingRunLoopMode
dequeue: YES];
eventType = [theEvent type];
if (eventType != NSPeriodic)
point = [self convertPoint: [theEvent locationInWindow]
fromView: nil];
else
{
if (point.x != knobRect.origin.x || point.y != knobRect.origin.y)
{
float floatValue = [self _floatValueForMousePoint: point
knobRect: knobRect];
if (floatValue != oldFloatValue)
{
theEvent = [app nextEventMatchingMask:eventMask
untilDate:[NSDate distantFuture]
inMode:NSEventTrackingRunLoopMode
dequeue:YES];
eventType = [theEvent type];
if (eventType != NSPeriodic)
point = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
else
{
if (point.x != knobRect.origin.x || point.y != knobRect.origin.y)
{
float floatValue = [self _floatValueForMousePoint:point
knobRect:knobRect];
if (floatValue != oldFloatValue)
{
[theCell setFloatValue:floatValue];
[theCell drawWithFrame:[self bounds] inView:self];
[window flushWindow];
if (isContinuous)
[target performSelector:action withObject:self];
oldFloatValue = floatValue;
}
knobRect.origin = point;
}
}
}
// If the control is not continuous send
if (!isContinuous) // the action at the end of the drag
[target performSelector:action withObject:self];
[NSEvent stopPeriodicEvents];
[theCell setFloatValue: floatValue];
[theCell drawWithFrame: [self bounds] inView: self];
[window flushWindow];
if (isContinuous)
[target performSelector: action withObject: self];
oldFloatValue = floatValue;
}
knobRect.origin = point;
}
}
}
// If the control is not continuous send the action at the end of the drag
if (!isContinuous)
[target performSelector: action withObject: self];
[NSEvent stopPeriodicEvents];
}
- (void)mouseDown:(NSEvent *)theEvent
- (void) mouseDown: (NSEvent *)theEvent
{
NSPoint location = [self convertPoint:[theEvent locationInWindow]fromView:nil];
NSSliderCell* theCell = [self cell];
NSRect rect;
NSPoint location = [self convertPoint: [theEvent locationInWindow]fromView: nil];
NSSliderCell* theCell = [self cell];
NSRect rect;
[self lockFocus];
rect = [theCell knobRectFlipped:[self isFlipped]];
if (![self mouse:location inRect:rect])
{ // Mouse is not on the knob, move
// the knob to the mouse position
float floatValue = [self _floatValueForMousePoint:location
knobRect:rect];
[theCell setFloatValue:floatValue];
if ([self isContinuous])
[[theCell target] performSelector:[theCell action]
withObject:self];
[theCell drawWithFrame:[self bounds] inView:self];
[window flushWindow];
}
[self trackKnob:theEvent knobRect:rect];
[self lockFocus];
rect = [theCell knobRectFlipped: [self isFlipped]];
if (![self mouse: location inRect: rect])
{
// Mouse is not on the knob, move the knob to the mouse position
float floatValue = [self _floatValueForMousePoint: location
knobRect: rect];
[theCell setFloatValue: floatValue];
if ([self isContinuous])
[[theCell target] performSelector: [theCell action]
withObject: self];
[theCell drawWithFrame: [self bounds] inView: self];
[window flushWindow];
}
[self trackKnob: theEvent knobRect: rect];
}
@end

View file

@ -37,30 +37,35 @@
@implementation NSSliderCell
- init
- (id) init
{
[self initImageCell:nil];
[self initImageCell: nil];
_altIncrementValue = -1;
_isVertical = -1;
_minValue = 0;
_maxValue = 1;
_floatValue = 0;
[self setBordered:YES];
[self setBezeled:YES];
[self setBordered: YES];
[self setBezeled: YES];
_knobCell = [NSCell new];
return self;
}
- (void)dealloc
- (void) dealloc
{
[_titleCell release];
[_knobCell release];
[super dealloc];
}
- (void)setFloatValue:(float)aFloat
- (BOOL) isFliped
{
return YES;
}
- (void) setFloatValue: (float)aFloat
{
if (aFloat < _minValue)
_floatValue = _minValue;
@ -70,16 +75,13 @@
_floatValue = aFloat;
}
- (void)drawBarInside:(NSRect)rect flipped:(BOOL)flipped
{ // not per spec FIX ME
if ([self image])
return;
[[NSColor darkGrayColor] set];
NSRectFill(rect); // draw the bar
- (void) drawBarInside: (NSRect)rect flipped: (BOOL)flipped
{
[[NSColor scrollBarColor] set];
NSRectFill(rect);
}
- (NSRect)knobRectFlipped:(BOOL)flipped
- (NSRect) knobRectFlipped: (BOOL)flipped
{
NSImage* image = [_knobCell image];
NSSize size;
@ -107,17 +109,17 @@
return NSMakeRect (origin.x, origin.y, size.width, size.height);
}
- (void)drawKnob
- (void) drawKnob
{
[self drawKnob:[self knobRectFlipped:[[self controlView] isFlipped]]];
[self drawKnob: [self knobRectFlipped: [[self controlView] isFlipped]]];
}
- (void)drawKnob:(NSRect)knobRect
- (void) drawKnob: (NSRect)knobRect
{
[_knobCell drawInteriorWithFrame:knobRect inView:[self controlView]];
[_knobCell drawInteriorWithFrame: knobRect inView: [self controlView]];
}
- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView*)controlView
- (void) drawInteriorWithFrame: (NSRect)cellFrame inView: (NSView*)controlView
{
BOOL vertical = (cellFrame.size.height > cellFrame.size.width);
NSImage* image;
@ -125,16 +127,16 @@
if (vertical != _isVertical) {
if (vertical) {
image = [NSImage imageNamed:@"common_SliderVert"];
image = [NSImage imageNamed: @"common_SliderVert"];
size = [image size];
[_knobCell setImage:image];
[image setSize:NSMakeSize (cellFrame.size.width, size.height)];
[_knobCell setImage: image];
[image setSize: NSMakeSize (cellFrame.size.width, size.height)];
}
else {
image = [NSImage imageNamed:@"common_SliderHoriz"];
image = [NSImage imageNamed: @"common_SliderHoriz"];
size = [image size];
[_knobCell setImage:image];
[image setSize:NSMakeSize (size.width, cellFrame.size.height)];
[_knobCell setImage: image];
[image setSize: NSMakeSize (size.width, cellFrame.size.height)];
}
}
_isVertical = vertical;
@ -142,13 +144,13 @@
_trackRect = cellFrame;
if (_titleCell)
[_titleCell drawInteriorWithFrame:cellFrame inView:controlView];
[_titleCell drawInteriorWithFrame: cellFrame inView: controlView];
[self drawBarInside:cellFrame flipped:[controlView isFlipped]];
[self drawBarInside: cellFrame flipped: [controlView isFlipped]];
[self drawKnob];
}
- (float)knobThickness
- (float) knobThickness
{
NSImage* image = [_knobCell image];
NSSize size = [image size];
@ -156,7 +158,7 @@
return _isVertical ? size.height : size.width;
}
- (void)setKnobThickness:(float)thickness
- (void) setKnobThickness: (float)thickness
{
NSImage* image = [_knobCell image];
NSSize size = [image size];
@ -166,48 +168,48 @@
else
size.width = thickness;
[image setSize:size];
[image setSize: size];
}
- (void)setAltIncrementValue:(double)increment
- (void) setAltIncrementValue: (double)increment
{
_altIncrementValue = increment;
}
- (void)setMinValue:(double)aDouble
- (void) setMinValue: (double)aDouble
{
_minValue = aDouble;
if (_floatValue < _minValue)
_floatValue = _minValue;
}
- (void)setMaxValue:(double)aDouble
- (void) setMaxValue: (double)aDouble
{
_maxValue = aDouble;
if (_floatValue > _maxValue)
_floatValue = _maxValue;
}
- (id)titleCell { return _titleCell; }
- (NSColor*)titleColor { return [_titleCell textColor]; }
- (NSFont*)titleFont { return [_titleCell font]; }
- (void)setTitle:(NSString*)title { [_titleCell setStringValue:title]; }
- (NSString*)title { return [_titleCell stringValue]; }
- (void)setTitleCell:(NSCell*)aCell { ASSIGN(_titleCell, aCell); }
- (void)setTitleColor:(NSColor*)color { [_titleCell setTextColor:color]; }
- (void)setTitleFont:(NSFont*)font { [_titleCell setFont:font]; }
- (int)isVertical { return _isVertical; }
- (double)altIncrementValue { return _altIncrementValue; }
+ (BOOL)prefersTrackingUntilMouseUp { return YES; }
- (NSRect)trackRect { return _trackRect; }
- (double)minValue { return _minValue; }
- (double)maxValue { return _maxValue; }
- (float)floatValue { return _floatValue; }
- (id) titleCell { return _titleCell; }
- (NSColor*) titleColor { return [_titleCell textColor]; }
- (NSFont*) titleFont { return [_titleCell font]; }
- (void) setTitle: (NSString*)title { [_titleCell setStringValue: title]; }
- (NSString*) title { return [_titleCell stringValue]; }
- (void) setTitleCell: (NSCell*)aCell { ASSIGN(_titleCell, aCell); }
- (void) setTitleColor: (NSColor*)color { [_titleCell setTextColor: color]; }
- (void) setTitleFont: (NSFont*)font { [_titleCell setFont: font]; }
- (int) isVertical { return _isVertical; }
- (double) altIncrementValue { return _altIncrementValue; }
+ (BOOL) prefersTrackingUntilMouseUp { return YES; }
- (NSRect) trackRect { return _trackRect; }
- (double) minValue { return _minValue; }
- (double) maxValue { return _maxValue; }
- (float) floatValue { return _floatValue; }
- (id) initWithCoder: (NSCoder*)decoder
{
self = [super initWithCoder: decoder];
[decoder decodeValuesOfObjCTypes:"ffff",
[decoder decodeValuesOfObjCTypes: "ffff",
&_minValue, &_maxValue, &_floatValue, &_altIncrementValue];
return self;
}
@ -215,7 +217,7 @@
- (void) encodeWithCoder: (NSCoder*)coder
{
[super encodeWithCoder: coder];
[coder encodeValuesOfObjCTypes:"ffff",
[coder encodeValuesOfObjCTypes: "ffff",
&_minValue, &_maxValue, &_floatValue, &_altIncrementValue];
}