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/*****************************************************************************
* VLCSlider.m
*****************************************************************************
* Copyright (C) 2017 VLC authors and VideoLAN
* $Id$
*
* Authors: Marvin Scholz <epirat07 at gmail dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#import "VLCSlider.h"
#import "VLCSliderCell.h"
#import "CompatibilityFixes.h"
@implementation VLCSlider
- (instancetype)initWithCoder:(NSCoder *)coder
{
self = [super initWithCoder:coder];
if (self) {
NSAssert([self.cell isKindOfClass:[VLCSliderCell class]],
@"VLCSlider cell is not VLCSliderCell");
_isScrollable = YES;
if (@available(macOS 10.14, *)) {
[self viewDidChangeEffectiveAppearance];
} else {
[self setSliderStyleLight];
}
}
return self;
}
+ (Class)cellClass
{
return [VLCSliderCell class];
}
- (void)scrollWheel:(NSEvent *)event
{
if (!_isScrollable)
return [super scrollWheel:event];
double increment;
CGFloat deltaY = [event scrollingDeltaY];
double range = [self maxValue] - [self minValue];
// Scroll less for high precision, else it's too fast
if (event.hasPreciseScrollingDeltas) {
increment = (range * 0.002) * deltaY;
} else {
if (deltaY == 0.0)
return;
increment = (range * 0.01 * deltaY);
}
// If scrolling is inversed, increment in other direction
if (!event.isDirectionInvertedFromDevice)
increment = -increment;
[self setDoubleValue:self.doubleValue - increment];
[self sendAction:self.action to:self.target];
}
// Workaround for 10.7
// http://stackoverflow.com/questions/3985816/custom-nsslidercell
- (void)setNeedsDisplayInRect:(NSRect)invalidRect {
[super setNeedsDisplayInRect:[self bounds]];
}
- (BOOL)getIndefinite
{
return [(VLCSliderCell*)[self cell] indefinite];
}
- (void)setIndefinite:(BOOL)indefinite
{
[(VLCSliderCell*)[self cell] setIndefinite:indefinite];
}
- (BOOL)getKnobHidden
{
return [(VLCSliderCell*)[self cell] isKnobHidden];
}
- (void)setKnobHidden:(BOOL)isKnobHidden
{
[(VLCSliderCell*)[self cell] setKnobHidden:isKnobHidden];
}
- (BOOL)isFlipped
{
return NO;
}
- (void)setSliderStyleLight
{
[(VLCSliderCell*)[self cell] setSliderStyleLight];
}
- (void)setSliderStyleDark
{
[(VLCSliderCell*)[self cell] setSliderStyleDark];
}
- (void)viewDidChangeEffectiveAppearance
{
if (@available(macOS 10_14, *)) {
if ([self.effectiveAppearance.name isEqualToString:NSAppearanceNameDarkAqua])
[self setSliderStyleDark];
else
[self setSliderStyleLight];
}
}
@end