97 lines
1.7 KiB
Objective-C
97 lines
1.7 KiB
Objective-C
//
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// VolumeSlider.m
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// Cog
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//
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// Created by Vincent Spader on 2/8/09.
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// Copyright 2009 __MyCompanyName__. All rights reserved.
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//
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#import "VolumeSlider.h"
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#import "PlaybackController.h"
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#import "CogAudio/Helper.h"
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@implementation VolumeSlider
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- (id)initWithFrame:(NSRect)frame
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{
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self = [super initWithFrame:frame];
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if (self)
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{
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toolTip = [[ToolTipWindow alloc] init];
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}
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return self;
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}
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- (id)initWithCoder:(NSCoder *)coder
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{
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self = [super initWithCoder:coder];
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if (self)
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{
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toolTip = [[ToolTipWindow alloc] init];
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}
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return self;
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}
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- (void)updateToolTip
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{
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double value = [self doubleValue];
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double volume = linearToLogarithmic(value);
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NSString *text = [[NSString alloc] initWithFormat:@"%0.lf%%", volume];
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NSSize size = [toolTip suggestedSizeForTooltip:text];
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NSPoint mouseLocation = [NSEvent mouseLocation];
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[toolTip setToolTip:text];
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[toolTip setFrame:NSMakeRect(mouseLocation.x, mouseLocation.y, size.width, size.height) display:YES];
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}
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- (void)showToolTip
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{
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[self updateToolTip];
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[toolTip orderFront];
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}
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- (void)showToolTipForDuration:(NSTimeInterval)duration
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{
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[self updateToolTip];
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[toolTip orderFrontForDuration:duration];
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}
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- (void)hideToolTip
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{
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[toolTip close];
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}
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- (BOOL)sendAction:(SEL)theAction to:(id)theTarget
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{
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double oneLog = logarithmicToLinear(100.0);
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double distance = [self frame].size.height*([self doubleValue] - oneLog)/100.0;
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if (fabs(distance) < 2.0)
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{
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[self setDoubleValue:oneLog];
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}
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[self showToolTip];
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return [super sendAction:theAction to:theTarget];
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}
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- (void)scrollWheel:(NSEvent *)theEvent
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{
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double change = [theEvent deltaY];
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[self setDoubleValue:[self doubleValue] + change];
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[[self target] changeVolume:self];
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[self showToolTipForDuration:1.0];
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}
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@end
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