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93 lines
2.4 KiB
93 lines
2.4 KiB
//
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// RuledScrollView.m
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// SpectogramPrototype
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//
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// Created by Joshua Moerman on 24/12/13.
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// Copyright (c) 2013 Joshua Moerman. All rights reserved.
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//
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#import "RuledScrollView.h"
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#import "Ruler.h"
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@interface RuledScrollView () <UIScrollViewDelegate> {
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CGFloat rulerHeight;
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CGFloat rulerWidth;
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}
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- (void) initView;
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@end
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@implementation RuledScrollView
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@synthesize content, topRuler, leftRuler;
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- (id)initWithFrame:(CGRect)frame{
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if(self = [super initWithFrame:frame]){
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[self initView];
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}
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return self;
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}
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- (id)initWithCoder:(NSCoder *)aDecoder{
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if(self = [super initWithCoder:aDecoder]){
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[self initView];
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}
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return self;
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}
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- (void)initView {
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rulerHeight = 44;
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rulerWidth = 120;
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self.delegate = self;
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self.backgroundColor = [UIColor whiteColor];
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content = [[UIView alloc] initWithFrame:self.frame];
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content.autoresizesSubviews = NO;
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[self addSubview:content];
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CGRect frame2 = self.frame;
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frame2.size.height = rulerHeight;
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topRuler = [[HorizontalRuler alloc] initWithFrame:frame2];
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topRuler.layer.opacity = 0.5;
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[self addSubview:topRuler];
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CGRect frame3 = self.frame;
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frame3.size.width = rulerWidth;
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leftRuler = [[VerticalRuler alloc] initWithFrame:frame3];
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leftRuler.layer.opacity = 0.5;
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[self addSubview:leftRuler];
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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const CGRect frame = {.origin = self.contentOffset, .size = self.bounds.size};
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const CGRect vis_frame = [self convertRect:self.bounds toView:content];
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{
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CGRect frame2 = frame;
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frame2.size.height = rulerHeight;
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self.topRuler.frame = frame2;
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CGFloat begin = vis_frame.origin.x;
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CGFloat end = vis_frame.origin.x + vis_frame.size.width;
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topRuler.visibleInterval = (Interval){.begin = begin, .end = end};
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}
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{
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CGRect frame2 = frame;
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frame2.size.width = rulerWidth;
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self.leftRuler.frame = frame2;
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CGFloat begin = vis_frame.origin.y;
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CGFloat end = vis_frame.origin.y + vis_frame.size.height;
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leftRuler.visibleInterval = (Interval){.begin = begin, .end = end};
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}
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}
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- (void)setContentSize:(CGSize)contentSize{
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[super setContentSize:CGSizeMake(contentSize.width + rulerWidth, contentSize.height + rulerHeight)];
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content.frame = CGRectMake(rulerWidth, rulerHeight, contentSize.width, contentSize.height);
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}
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- (UIView *)viewForZoomingInScrollView:(UIScrollView *)__unused scrollView{
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return content;
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}
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@end
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