mirror of
https://github.com/Ranchero-Software/NetNewsWire.git
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150 lines
5.0 KiB
Swift
150 lines
5.0 KiB
Swift
//
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// TimelineCellLayout.swift
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// Evergreen
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//
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// Created by Brent Simmons on 2/6/16.
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// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
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//
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import AppKit
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import RSTextDrawing
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import RSCore
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struct TimelineCellLayout {
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let width: CGFloat
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let height: CGFloat
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let feedNameRect: NSRect
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let dateRect: NSRect
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let titleRect: NSRect
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let unreadIndicatorRect: NSRect
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let avatarImageRect: NSRect
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let paddingBottom: CGFloat
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init(width: CGFloat, feedNameRect: NSRect, dateRect: NSRect, titleRect: NSRect, unreadIndicatorRect: NSRect, avatarImageRect: NSRect, paddingBottom: CGFloat) {
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self.width = width
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self.feedNameRect = feedNameRect
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self.dateRect = dateRect
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self.titleRect = titleRect
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self.unreadIndicatorRect = unreadIndicatorRect
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self.avatarImageRect = avatarImageRect
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self.paddingBottom = paddingBottom
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var height = max(0, feedNameRect.maxY)
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height = max(height, dateRect.maxY)
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height = max(height, titleRect.maxY)
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height = max(height, unreadIndicatorRect.maxY)
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height = max(height, avatarImageRect.maxY)
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height += paddingBottom
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self.height = height
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}
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}
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private func rectForDate(_ cellData: TimelineCellData, _ width: CGFloat, _ appearance: TimelineCellAppearance, _ titleRect: NSRect) -> NSRect {
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let renderer = RSSingleLineRenderer(attributedTitle: cellData.attributedDateString)
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var r = NSZeroRect
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r.size = renderer.size
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r.origin.y = NSMaxY(titleRect) + appearance.titleBottomMargin
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r.origin.x = appearance.boxLeftMargin
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r.size.width = min(width - (r.origin.x + appearance.cellPadding.right), r.size.width)
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r.size.width = max(r.size.width, 0.0)
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return r
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}
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private func rectForFeedName(_ cellData: TimelineCellData, _ width: CGFloat, _ appearance: TimelineCellAppearance, _ dateRect: NSRect) -> NSRect {
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if !cellData.showFeedName {
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return NSZeroRect
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}
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let renderer = RSSingleLineRenderer(attributedTitle: cellData.attributedFeedName)
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var r = NSZeroRect
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r.size = renderer.size
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r.origin.y = NSMaxY(dateRect) + appearance.titleBottomMargin
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r.origin.x = appearance.boxLeftMargin
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r.size.width = max(0, width - (r.origin.x + appearance.cellPadding.right))
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return r
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}
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//private func rectForFavicon(_ cellData: TimelineCellData, _ appearance: TimelineCellAppearance, _ feedNameRect: NSRect, _ unreadIndicatorRect: NSRect) -> NSRect {
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//
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// guard let _ = cellData.favicon, cellData.showFeedName else {
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// return NSZeroRect
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// }
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//
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// var r = NSZeroRect
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// r.size = appearance.faviconSize
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// r.origin.y = feedNameRect.origin.y
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//
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// r = RSRectCenteredHorizontallyInRect(r, unreadIndicatorRect)
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//
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// return r
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//}
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private func rectsForTitle(_ cellData: TimelineCellData, _ width: CGFloat, _ appearance: TimelineCellAppearance) -> (NSRect, NSRect) {
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var r = NSZeroRect
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r.origin.x = appearance.boxLeftMargin
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r.origin.y = appearance.cellPadding.top
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let textWidth = width - (r.origin.x + appearance.cellPadding.right)
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let renderer = RSMultiLineRenderer(attributedTitle: cellData.attributedTitle)
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let measurements = renderer.measurements(forWidth: textWidth)
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r.size = NSSize(width: textWidth, height: CGFloat(measurements.height))
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r.size.width = max(r.size.width, 0.0)
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var rline1 = r
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rline1.size.height = CGFloat(measurements.heightOfFirstLine)
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return (r, rline1)
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}
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private func rectForUnreadIndicator(_ cellData: TimelineCellData, _ appearance: TimelineCellAppearance, _ titleLine1Rect: NSRect) -> NSRect {
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var r = NSZeroRect
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r.size = NSSize(width: appearance.unreadCircleDimension, height: appearance.unreadCircleDimension)
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r.origin.x = appearance.cellPadding.left
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r = RSRectCenteredVerticallyInRect(r, titleLine1Rect)
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return r
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}
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private func rectForAvatar(_ cellData: TimelineCellData, _ appearance: TimelineCellAppearance, _ titleLine1Rect: NSRect) -> NSRect {
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var r = NSRect.zero
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if !cellData.showAvatar {
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return r
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}
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r.size = appearance.avatarSize
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r.origin.x = appearance.cellPadding.left + appearance.unreadCircleDimension + appearance.unreadCircleMarginRight
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r.origin.y = titleLine1Rect.minY + appearance.avatarAdjustmentTop
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return r
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}
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func timelineCellLayout(_ width: CGFloat, cellData: TimelineCellData, appearance: TimelineCellAppearance) -> TimelineCellLayout {
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let (titleRect, titleLine1Rect) = rectsForTitle(cellData, width, appearance)
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let dateRect = rectForDate(cellData, width, appearance, titleRect)
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let feedNameRect = rectForFeedName(cellData, width, appearance, dateRect)
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let unreadIndicatorRect = rectForUnreadIndicator(cellData, appearance, titleLine1Rect)
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// let faviconRect = rectForFavicon(cellData, appearance, feedNameRect, unreadIndicatorRect)
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let avatarImageRect = rectForAvatar(cellData, appearance, titleLine1Rect)
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return TimelineCellLayout(width: width, feedNameRect: feedNameRect, dateRect: dateRect, titleRect: titleRect, unreadIndicatorRect: unreadIndicatorRect, avatarImageRect: avatarImageRect, paddingBottom: appearance.cellPadding.bottom)
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}
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func timelineCellHeight(_ width: CGFloat, cellData: TimelineCellData, appearance: TimelineCellAppearance) -> CGFloat {
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let layout = timelineCellLayout(width, cellData: cellData, appearance: appearance)
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return layout.height
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}
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