136 lines
3.4 KiB
Objective-C
136 lines
3.4 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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NSTimer *currentTimer;
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}
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- (id)initWithFrame:(NSRect)frame
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{
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self = [super initWithFrame:frame];
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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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return self;
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}
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- (void) awakeFromNib {
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textView = [[NSText alloc] init];
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[textView setFrame:NSMakeRect(0, 0, 50, 20)];
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textView.drawsBackground = NO;
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textView.editable = NO;
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textView.alignment = NSTextAlignmentCenter;
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NSViewController * viewController = [[NSViewController alloc] init];
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viewController.view = textView;
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popover = [[NSPopover alloc] init];
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popover.contentViewController = viewController;
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// Don't hide the popover automatically.
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popover.behavior = NSPopoverBehaviorApplicationDefined;
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popover.animates = NO;
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[popover setContentSize:textView.bounds.size];
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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 stringWithFormat:@"%0.lf%%", volume];
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[textView setString:text];
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}
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- (void)showToolTip
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{
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[self updateToolTip];
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double progress = (self.maxValue - [self doubleValue]) / (self.maxValue - self.minValue);
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CGFloat width = self.knobThickness - 1;
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// Show tooltip to the left of the Slider Knob
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CGFloat height = self.knobThickness / 2.f + (self.bounds.size.height - self.knobThickness) * progress - 1;
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[popover showRelativeToRect:NSMakeRect(width, height, 2, 2) ofView:self preferredEdge:NSRectEdgeMaxX];
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[self.window.parentWindow makeKeyWindow];
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}
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- (void)showToolTipForDuration:(NSTimeInterval)duration
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{
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[self showToolTip];
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[self hideToolTipAfterDelay:duration];
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}
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- (void)showToolTipForView:(NSView *)view closeAfter:(NSTimeInterval)duration
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{
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[self updateToolTip];
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[popover showRelativeToRect:view.bounds ofView:view preferredEdge:NSRectEdgeMaxY];
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[self hideToolTipAfterDelay:duration];
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}
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- (void)hideToolTip
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{
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[popover close];
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}
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- (void) hideToolTipAfterDelay:(NSTimeInterval)duration
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{
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if (currentTimer)
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{
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[currentTimer invalidate];
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currentTimer = nil;
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}
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if (duration > 0.0) {
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currentTimer = [NSTimer scheduledTimerWithTimeInterval:duration
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target:self
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selector:@selector(hideToolTip)
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userInfo:nil
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repeats:NO];
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[[NSRunLoop mainRunLoop] addTimer:currentTimer forMode:NSRunLoopCommonModes];
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}
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}
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- (BOOL)sendAction:(SEL)theAction to:(id)theTarget
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{
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// Snap to 100% if value is close
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double snapTarget = logarithmicToLinear(100.0);
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double snapProgress = ([self doubleValue] - snapTarget) / (self.maxValue - self.minValue);
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if (fabs(snapProgress) < 0.005)
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{
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[self setDoubleValue:snapTarget];
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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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