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+/*****************************************************************************
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+ * VLC for iOS
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+ *****************************************************************************
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+ * Copyright (c) 2015 VideoLAN. All rights reserved.
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+ * $Id$
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+ *
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+ * Authors: Tobias Conradi <videolan # tobias-conradi.de>
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+ *
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+ * Refer to the COPYING file of the official project for license.
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+ *****************************************************************************/
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+
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+#import "VLCTransportBar.h"
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+#import "VLCBufferingBar.h"
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+
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+@interface VLCTransportBar ()
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+@property (nonatomic) VLCBufferingBar *bufferingBar;
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+@property (nonatomic) UIView *playbackPositionMarker;
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+@property (nonatomic) UIView *scrubbingPostionMarker;
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+@end
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+
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+@implementation VLCTransportBar
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+
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+static const CGFloat VLCTransportBarMarkerWidth = 2.0;
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+
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+static inline void sharedSetup(VLCTransportBar *self) {
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+ CGRect bounds = self.bounds;
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+
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+ // Bar:
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+ VLCBufferingBar *bar = [[VLCBufferingBar alloc] initWithFrame:bounds];
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+ UIColor *barColor = [UIColor lightGrayColor];
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+ bar.bufferColor = barColor;
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+ bar.borderColor = barColor;
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+ bar.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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+ bar.bufferStartFraction = self.bufferStartFraction;
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+ bar.bufferEndFraction = self.bufferEndFraction;
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+ self.bufferingBar = bar;
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+ [self addSubview:bar];
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+
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+ // Marker:
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+ UIColor *markerColor = [UIColor whiteColor];
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+ UIView *playbackMarker = [[UIView alloc] initWithFrame:CGRectMake(0, 0, VLCTransportBarMarkerWidth, CGRectGetHeight(bounds))];
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+ playbackMarker.autoresizingMask = UIViewAutoresizingFlexibleHeight;
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+ playbackMarker.backgroundColor = markerColor;
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+ [self addSubview:playbackMarker];
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+ self.playbackPositionMarker = playbackMarker;
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+
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+ UIView *scrubbingMarker = [[UIView alloc] initWithFrame:CGRectMake(0, 0, VLCTransportBarMarkerWidth, CGRectGetHeight(bounds))];
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+ [self addSubview:scrubbingMarker];
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+ scrubbingMarker.backgroundColor = markerColor;
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+ self.scrubbingPostionMarker = scrubbingMarker;
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+
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+ // Labels:
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+ CGFloat size = [UIFont preferredFontForTextStyle:UIFontTextStyleCallout].pointSize;
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+ UIFont *font = [UIFont monospacedDigitSystemFontOfSize:size weight:UIFontWeightSemibold];
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+ UIColor *textColor = [UIColor whiteColor];
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+
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+ UILabel *markerLabel = [[UILabel alloc] initWithFrame:CGRectZero];
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+ markerLabel.font = font;
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+ markerLabel.textColor = textColor;
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+ [self addSubview:markerLabel];
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+ self->_markerTimeLabel = markerLabel;
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+
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+ UILabel *remainingLabel = [[UILabel alloc] initWithFrame:CGRectZero];
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+ remainingLabel.font = font;
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+ remainingLabel.textColor = textColor;
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+ [self addSubview:remainingLabel];
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+ self->_remainingTimeLabel = remainingLabel;
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+}
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+
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+- (instancetype)initWithFrame:(CGRect)frame
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+{
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+ self = [super initWithFrame:frame];
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+ if (self) {
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+ sharedSetup(self);
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+ }
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+ return self;
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+}
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+- (void)awakeFromNib {
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+ [super awakeFromNib];
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+ sharedSetup(self);
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+}
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+
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+- (void)setBufferStartFraction:(CGFloat)bufferStartFraction {
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+ _bufferStartFraction = bufferStartFraction;
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+ self.bufferingBar.bufferStartFraction = bufferStartFraction;
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+}
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+- (void)setBufferEndFraction:(CGFloat)bufferEndFraction {
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+ _bufferEndFraction = bufferEndFraction;
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+ self.bufferingBar.bufferEndFraction = bufferEndFraction;
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+}
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+- (void)setPlaybackFraction:(CGFloat)playbackFraction {
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+ _playbackFraction = playbackFraction;
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+ if (!self.scrubbing) {
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+ [self setScrubbingFraction:playbackFraction];
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+ }
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+ [self setNeedsLayout];
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+}
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+- (void)setScrubbingFraction:(CGFloat)scrubbingFraction {
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+ _scrubbingFraction = scrubbingFraction;
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+ [self setNeedsLayout];
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+}
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+- (void)setScrubbing:(BOOL)scrubbing {
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+ _scrubbing = scrubbing;
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+ [self setNeedsLayout];
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+}
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+
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+- (void)layoutSubviews {
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+ [super layoutSubviews];
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+ const CGRect bounds = self.bounds;
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+ const CGFloat width = CGRectGetWidth(bounds)-VLCTransportBarMarkerWidth;
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+
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+ self.playbackPositionMarker.center = CGPointMake(width*self.playbackFraction+VLCTransportBarMarkerWidth/2.0,
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+ CGRectGetMidY(bounds));
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+
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+
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+ const BOOL withThumbnail = NO;
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+ const CGRect scrubberFrame = scrubbingMarkerFrameForBounds_fraction_withThumb(bounds,
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+ self.scrubbingFraction,
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+ withThumbnail);
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+ self.scrubbingPostionMarker.frame = scrubberFrame;
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+
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+
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+ UILabel *remainingLabel = self.remainingTimeLabel;
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+ [remainingLabel sizeToFit];
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+ CGRect remainingLabelFrame = remainingLabel.frame;
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+ remainingLabelFrame.origin.y = CGRectGetMaxY(bounds)+15.0;
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+ remainingLabelFrame.origin.x = width-CGRectGetWidth(remainingLabelFrame);
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+ remainingLabel.frame = remainingLabelFrame;
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+
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+ UILabel *markerLabel = self.markerTimeLabel;
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+ [markerLabel sizeToFit];
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+
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+ CGPoint timeLabelCenter = remainingLabel.center;
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+ timeLabelCenter.x = self.scrubbingPostionMarker.center.x;
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+ markerLabel.center = timeLabelCenter;
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+
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+ CGFloat remainingAlfa = CGRectIntersectsRect(markerLabel.frame, remainingLabelFrame) ? 0.0 : 1.0;
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+ remainingLabel.alpha = remainingAlfa;
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+}
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+
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+
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+static CGRect scrubbingMarkerFrameForBounds_fraction_withThumb(CGRect bounds, CGFloat fraction, BOOL withThumbnail) {
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+ const CGFloat width = CGRectGetWidth(bounds)-VLCTransportBarMarkerWidth;
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+ const CGFloat height = CGRectGetHeight(bounds);
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+
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+ // when scrubbing marker is 4x instead of 3x bar heigt
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+ const CGFloat scrubbingHeight = height * (withThumbnail ? 4.0 : 3.0);
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+
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+ // x position is always center of marker == view width * fraction
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+ const CGFloat scrubbingXPosition = width*fraction;
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+ CGFloat scrubbingYPosition = 0;
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+ if (withThumbnail) {
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+ // scrubbing marker bottom and bar buttom are same
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+ scrubbingYPosition = height-scrubbingHeight;
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+ } else {
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+ // scrubbing marker y center == bar y center
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+ scrubbingYPosition = height/2.0 - scrubbingHeight/2.0;
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+ }
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+ return CGRectMake(scrubbingXPosition,
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+ scrubbingYPosition,
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+ VLCTransportBarMarkerWidth,
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+ scrubbingHeight);
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+}
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+
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+@end
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Tobias Conradi