NetNewsWire/iOS/Master/Cell/MasterTableViewCellLayout.s...

110 lines
3.7 KiB
Swift

//
// MasterTableViewCellLayout.swift
// NetNewsWire
//
// Created by Brent Simmons on 11/24/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import UIKit
import RSCore
struct MasterTableViewCellLayout {
private static let imageSize = CGSize(width: 16, height: 16)
private static let marginLeft = CGFloat(integerLiteral: 8)
private static let imageMarginRight = CGFloat(integerLiteral: 8)
private static let unreadCountMarginLeft = CGFloat(integerLiteral: 8)
private static let unreadCountMarginRight = CGFloat(integerLiteral: 0)
private static let disclosureButtonSize = CGSize(width: 44, height: 44)
let faviconRect: CGRect
let titleRect: CGRect
let unreadCountRect: CGRect
let disclosureButtonRect: CGRect
init(cellSize: CGSize, shouldShowImage: Bool, label: UILabel, unreadCountView: MasterUnreadCountView, showingEditingControl: Bool, indent: Bool, shouldShowDisclosure: Bool) {
let bounds = CGRect(x: 0.0, y: 0.0, width: floor(cellSize.width), height: floor(cellSize.height))
// Favicon
var rFavicon = CGRect.zero
if shouldShowImage {
var indentX = showingEditingControl ? MasterTableViewCellLayout.marginLeft + 40 : MasterTableViewCellLayout.marginLeft
indentX = indent ? indentX + 20 : indentX
rFavicon = CGRect(x: indentX, y: 0.0, width: MasterTableViewCellLayout.imageSize.width, height: MasterTableViewCellLayout.imageSize.height)
rFavicon = MasterTableViewCellLayout.centerVertically(rFavicon, bounds)
}
self.faviconRect = rFavicon
// Title
let labelSize = SingleLineUILabelSizer.size(for: label.text ?? "", font: label.font!)
var rLabel = CGRect(x: 0.0, y: 0.0, width: labelSize.width, height: labelSize.height)
if shouldShowImage {
rLabel.origin.x = rFavicon.maxX + MasterTableViewCellLayout.imageMarginRight
} else {
rLabel.origin.x = indent ? MasterTableViewCellLayout.marginLeft + 10 : MasterTableViewCellLayout.marginLeft
}
rLabel = MasterTableViewCellLayout.centerVertically(rLabel, bounds)
// Unread Count
let unreadCountSize = unreadCountView.intrinsicContentSize
let unreadCountIsHidden = unreadCountView.unreadCount < 1
var rUnread = CGRect.zero
if !unreadCountIsHidden {
rUnread.size = unreadCountSize
rUnread.origin.x = bounds.maxX -
(unreadCountSize.width + MasterTableViewCellLayout.unreadCountMarginRight + MasterTableViewCellLayout.disclosureButtonSize.width)
rUnread = MasterTableViewCellLayout.centerVertically(rUnread, bounds)
// Cap the Title width based on the unread indicator button
let labelMaxX = rUnread.minX - MasterTableViewCellLayout.unreadCountMarginLeft
if rLabel.maxX > labelMaxX {
rLabel.size.width = labelMaxX - rLabel.minX
}
}
self.unreadCountRect = rUnread
// Disclosure Button
var rDisclosure = CGRect.zero
if shouldShowDisclosure {
rDisclosure.size = MasterTableViewCellLayout.disclosureButtonSize
rDisclosure.origin.x = bounds.maxX - MasterTableViewCellLayout.disclosureButtonSize.width
rDisclosure = MasterTableViewCellLayout.centerVertically(rDisclosure, bounds)
// Cap the Title width based on the disclosure button
let labelMaxX = rDisclosure.minX
if rLabel.maxX > labelMaxX {
rLabel.size.width = labelMaxX - rLabel.minX
}
}
self.disclosureButtonRect = rDisclosure
// Cap the Title width based on total width
if rLabel.maxX > bounds.maxX {
rLabel.size.width = bounds.maxX - rLabel.minX
}
self.titleRect = rLabel
}
// Ideally this will be implemented in RSCore (see RSGeometry)
static func centerVertically(_ originalRect: CGRect, _ containerRect: CGRect) -> CGRect {
var result = originalRect
result.origin.y = containerRect.midY - (result.height / 2.0)
result = result.integral
result.size = originalRect.size
return result
}
}