mirror of
https://github.com/vector-im/element-ios.git
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166 lines
4 KiB
Objective-C
166 lines
4 KiB
Objective-C
/*
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Copyright 2014 OpenMarket Ltd
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Copyright 2020 Vector Creations Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "SectionHeaderView.h"
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static const CGFloat kInterItemsSpaceHorizontal = 8.0;
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@implementation SectionHeaderView
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- (void)setMinimumLeftInset:(CGFloat)minimumLeftInset
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{
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_minimumLeftInset = minimumLeftInset;
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[self setNeedsLayout];
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}
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- (void)setMinimumRightInset:(CGFloat)minimumRightInset
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{
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_minimumRightInset = minimumRightInset;
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[self setNeedsLayout];
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}
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- (void)setTopViewHeight:(CGFloat)topViewHeight
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{
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_topViewHeight = topViewHeight;
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[self setNeedsLayout];
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}
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- (void)setTopSpanningView:(UIView *)topSpanningView
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{
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_topSpanningView = topSpanningView;
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[self setNeedsLayout];
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}
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- (void)setHeaderLabel:(UILabel *)headerLabel
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{
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_headerLabel = headerLabel;
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[self setNeedsLayout];
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}
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- (void)setAccessoryView:(UIView *)accessoryView
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{
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_accessoryView = accessoryView;
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[self setNeedsLayout];
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}
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- (void)setBottomView:(UIView *)bottomView
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{
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_bottomView = bottomView;
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[self setNeedsLayout];
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}
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- (instancetype)init
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{
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return [self initWithFrame:CGRectZero];
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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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{
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[self setup];
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}
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)aDecoder
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{
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self = [super initWithCoder:aDecoder];
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if (self)
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{
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[self setup];
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}
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return self;
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}
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- (void)setup
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{
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_minimumLeftInset = 20;
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_minimumRightInset = 16;
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_topViewHeight = 30;
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}
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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CGFloat _leftInset = 0.0, _rightInset = 0.0;
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_leftInset += self.safeAreaInsets.left;
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_rightInset += self.safeAreaInsets.right;
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CGFloat leftMargin = MAX(_leftInset, _minimumLeftInset);
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CGFloat rightMargin = MAX(_rightInset, _minimumRightInset);
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if (_topSpanningView)
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{
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CGRect frame = self.bounds;
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frame.size.height = _topViewHeight;
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_topSpanningView.frame = frame;
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}
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if (_headerLabel)
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{
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CGRect frame = _headerLabel.frame;
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frame.origin.x = leftMargin;
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if (_accessoryView)
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{
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rightMargin += _accessoryView.frame.size.width + kInterItemsSpaceHorizontal;
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}
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if (_bottomView)
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{
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// set header label top
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frame.origin.y = (_topViewHeight - frame.size.height)/2;
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}
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else
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{
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// center header label vertically
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frame.origin.y = MAX(0, (self.bounds.size.height - frame.size.height)/2);
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}
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frame.size.width = self.bounds.size.width - leftMargin - rightMargin;
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_headerLabel.frame = frame;
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}
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if (_accessoryView)
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{
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// reset margins
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leftMargin = MAX(_leftInset, 20);
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rightMargin = MAX(_rightInset, 20);
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CGRect frame = _accessoryView.frame;
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frame.origin.x = self.bounds.size.width - frame.size.width - rightMargin;
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frame.origin.y = MAX(0, (_topViewHeight - frame.size.height)/2);
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_accessoryView.frame = frame;
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}
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if (_bottomView)
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{
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// reset margins
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leftMargin = MAX(_leftInset, 20);
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rightMargin = MAX(_rightInset, 20);
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CGRect frame = _bottomView.frame;
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frame.origin.x = leftMargin;
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frame.origin.y = CGRectGetMaxY(_headerLabel.frame);
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frame.size.width = self.bounds.size.width - leftMargin - rightMargin;
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frame.size.height = self.bounds.size.height - frame.origin.y;
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_bottomView.frame = frame;
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}
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}
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@end
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