NetNewsWire/iOS/MasterTimeline/Cell/MasterTimelineDefaultCellLayout.swift

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2019-04-30 00:19:08 +02:00
//
// MasterTimelineDefaultCellLayout.swift
// NetNewsWire
//
// Created by Brent Simmons on 2/6/16.
// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
//
import UIKit
import RSCore
struct MasterTimelineDefaultCellLayout: MasterTimelineCellLayout {
static let cellPadding = UIEdgeInsets(top: 12, left: 8, bottom: 12, right: 20)
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static let unreadCircleMarginLeft = CGFloat(integerLiteral: 0)
static let unreadCircleDimension = CGFloat(integerLiteral: 12)
static let unreadCircleSize = CGSize(width: MasterTimelineDefaultCellLayout.unreadCircleDimension, height: MasterTimelineDefaultCellLayout.unreadCircleDimension)
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static let unreadCircleMarginRight = CGFloat(integerLiteral: 8)
static let starDimension = CGFloat(integerLiteral: 16)
static let starSize = CGSize(width: MasterTimelineDefaultCellLayout.starDimension, height: MasterTimelineDefaultCellLayout.starDimension)
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static let iconMarginRight = CGFloat(integerLiteral: 8)
static let iconCornerRadius = CGFloat(integerLiteral: 4)
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static var titleFont: UIFont {
return UIFont.preferredFont(forTextStyle: .headline)
}
static let titleBottomMargin = CGFloat(integerLiteral: 1)
static var feedNameFont: UIFont {
return UIFont.preferredFont(forTextStyle: .footnote)
}
static let feedRightMargin = CGFloat(integerLiteral: 8)
static var dateFont: UIFont {
return UIFont.preferredFont(forTextStyle: .footnote)
}
static let dateMarginBottom = CGFloat(integerLiteral: 1)
static var summaryFont: UIFont {
return UIFont.preferredFont(forTextStyle: .body)
}
let height: CGFloat
let unreadIndicatorRect: CGRect
let starRect: CGRect
let iconImageRect: CGRect
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let titleRect: CGRect
let summaryRect: CGRect
let feedNameRect: CGRect
let dateRect: CGRect
init(width: CGFloat, insets: UIEdgeInsets, cellData: MasterTimelineCellData) {
var currentPoint = CGPoint.zero
currentPoint.x = MasterTimelineDefaultCellLayout.cellPadding.left + insets.left + MasterTimelineDefaultCellLayout.unreadCircleMarginLeft
currentPoint.y = MasterTimelineDefaultCellLayout.cellPadding.top
// Unread Indicator and Star
self.unreadIndicatorRect = MasterTimelineDefaultCellLayout.rectForUnreadIndicator(currentPoint)
self.starRect = MasterTimelineDefaultCellLayout.rectForStar(currentPoint)
// Start the point at the beginning position of the main block
currentPoint.x += MasterTimelineDefaultCellLayout.unreadCircleDimension + MasterTimelineDefaultCellLayout.unreadCircleMarginRight
// Icon Image
if cellData.showIcon {
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self.iconImageRect = MasterTimelineDefaultCellLayout.rectForIconView(currentPoint, iconSize: cellData.iconSize)
currentPoint.x = self.iconImageRect.maxX + MasterTimelineDefaultCellLayout.iconMarginRight
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} else {
self.iconImageRect = CGRect.zero
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}
let textAreaWidth = width - (currentPoint.x + MasterTimelineDefaultCellLayout.cellPadding.right + insets.right)
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// Title Text Block
let (titleRect, numberOfLinesForTitle) = MasterTimelineDefaultCellLayout.rectForTitle(cellData, currentPoint, textAreaWidth)
self.titleRect = titleRect
// Summary Text Block
if self.titleRect != CGRect.zero {
currentPoint.y = self.titleRect.maxY + MasterTimelineDefaultCellLayout.titleBottomMargin
}
self.summaryRect = MasterTimelineDefaultCellLayout.rectForSummary(cellData, currentPoint, textAreaWidth, numberOfLinesForTitle)
var y = [self.titleRect, self.summaryRect].maxY()
if y == 0 {
y = iconImageRect.origin.y + iconImageRect.height
// Necessary calculation of either feed name or date since we are working with dynamic font-sizes
let tmp = MasterTimelineDefaultCellLayout.rectForDate(cellData, currentPoint, textAreaWidth)
y -= tmp.height
}
currentPoint.y = y
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// Feed Name and Pub Date
self.dateRect = MasterTimelineDefaultCellLayout.rectForDate(cellData, currentPoint, textAreaWidth)
let feedNameWidth = textAreaWidth - (MasterTimelineDefaultCellLayout.feedRightMargin + self.dateRect.size.width)
self.feedNameRect = MasterTimelineDefaultCellLayout.rectForFeedName(cellData, currentPoint, feedNameWidth)
self.height = [self.iconImageRect, self.feedNameRect].maxY() + MasterTimelineDefaultCellLayout.cellPadding.bottom
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}
}
// MARK: - Calculate Rects
extension MasterTimelineDefaultCellLayout {
static func rectForDate(_ cellData: MasterTimelineCellData, _ point: CGPoint, _ textAreaWidth: CGFloat) -> CGRect {
var r = CGRect.zero
let size = SingleLineUILabelSizer.size(for: cellData.dateString, font: MasterTimelineDefaultCellLayout.dateFont)
r.size = size
r.origin.x = (point.x + textAreaWidth) - size.width
r.origin.y = point.y
return r
}
}