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This commit is contained in:
Ali
2023-07-14 23:31:21 +04:00
parent c2d2da131c
commit 2e09bfe14f
9 changed files with 222 additions and 47 deletions
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152
submodules/Display/Source/TextNode.swift
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@@ -38,6 +38,18 @@ private final class TextNodeEmbeddedItem {
}
}
private final class TextNodeAttachment {
let range: NSRange
let frame: CGRect
let attachment: UIImage
init(range: NSRange, frame: CGRect, attachment: UIImage) {
self.range = range
self.frame = frame
self.attachment = attachment
}
}
public struct TextRangeRectEdge: Equatable {
public var x: CGFloat
public var y: CGFloat
@@ -59,8 +71,9 @@ private final class TextNodeLine {
let spoilers: [TextNodeSpoiler]
let spoilerWords: [TextNodeSpoiler]
let embeddedItems: [TextNodeEmbeddedItem]
let attachments: [TextNodeAttachment]
init(line: CTLine, frame: CGRect, range: NSRange, isRTL: Bool, strikethroughs: [TextNodeStrikethrough], spoilers: [TextNodeSpoiler], spoilerWords: [TextNodeSpoiler], embeddedItems: [TextNodeEmbeddedItem]) {
init(line: CTLine, frame: CGRect, range: NSRange, isRTL: Bool, strikethroughs: [TextNodeStrikethrough], spoilers: [TextNodeSpoiler], spoilerWords: [TextNodeSpoiler], embeddedItems: [TextNodeEmbeddedItem], attachments: [TextNodeAttachment]) {
self.line = line
self.frame = frame
self.range = range
@@ -69,6 +82,7 @@ private final class TextNodeLine {
self.spoilers = spoilers
self.spoilerWords = spoilerWords
self.embeddedItems = embeddedItems
self.attachments = attachments
}
}
@@ -1084,6 +1098,7 @@ open class TextNode: ASDisplayNode {
var spoilers: [TextNodeSpoiler] = []
var spoilerWords: [TextNodeSpoiler] = []
var embeddedItems: [TextNodeEmbeddedItem] = []
var attachments: [TextNodeAttachment] = []
var lineConstrainedWidth = constrainedSize.width
var lineConstrainedWidthDelta: CGFloat = 0.0
@@ -1159,6 +1174,24 @@ open class TextNode: ASDisplayNode {
embeddedItems.append(TextNodeEmbeddedItem(range: NSMakeRange(startIndex, endIndex - startIndex + 1), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent), item: item))
}
func addAttachment(attachment: UIImage, line: CTLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int, rightInset: CGFloat = 0.0) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
attachments.append(TextNodeAttachment(range: NSMakeRange(startIndex, endIndex - startIndex), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent), attachment: attachment))
}
var isLastLine = false
if maximumNumberOfLines != 0 && lines.count == maximumNumberOfLines - 1 && lineCharacterCount > 0 {
isLastLine = true
@@ -1307,6 +1340,14 @@ open class TextNode: ASDisplayNode {
addEmbeddedItem(item: embeddedItem, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
if let attachment = attributes[NSAttributedString.Key.attachment] as? UIImage {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(coreTextLine, &ascent, &descent, nil)
addAttachment(attachment: attachment, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
}
@@ -1328,7 +1369,7 @@ open class TextNode: ASDisplayNode {
}
}
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: embeddedItems))
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: embeddedItems, attachments: attachments))
break
} else {
if lineCharacterCount > 0 {
@@ -1398,6 +1439,14 @@ open class TextNode: ASDisplayNode {
addEmbeddedItem(item: embeddedItem, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
if let attachment = attributes[NSAttributedString.Key.attachment] as? UIImage {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(coreTextLine, &ascent, &descent, nil)
addAttachment(attachment: attachment, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
let lineWidth = ceil(CGFloat(CTLineGetTypographicBounds(coreTextLine, nil, nil, nil) - CTLineGetTrailingWhitespaceWidth(coreTextLine)))
@@ -1418,7 +1467,7 @@ open class TextNode: ASDisplayNode {
}
}
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: embeddedItems))
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: embeddedItems, attachments: attachments))
} else {
if !lines.isEmpty {
layoutSize.height += fontLineSpacing
@@ -1854,6 +1903,7 @@ open class TextView: UIView {
var strikethroughs: [TextNodeStrikethrough] = []
var spoilers: [TextNodeSpoiler] = []
var spoilerWords: [TextNodeSpoiler] = []
var attachments: [TextNodeAttachment] = []
var lineConstrainedWidth = constrainedSize.width
var lineConstrainedWidthDelta: CGFloat = 0.0
@@ -1911,6 +1961,24 @@ open class TextView: UIView {
spoilerWords.append(TextNodeSpoiler(range: NSMakeRange(startIndex, endIndex - startIndex + 1), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent)))
}
func addAttachment(attachment: UIImage, line: CTLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int, rightInset: CGFloat = 0.0) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
attachments.append(TextNodeAttachment(range: NSMakeRange(startIndex, endIndex - startIndex), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent), attachment: attachment))
}
var isLastLine = false
if maximumNumberOfLines != 0 && lines.count == maximumNumberOfLines - 1 && lineCharacterCount > 0 {
isLastLine = true
@@ -2006,7 +2074,14 @@ open class TextView: UIView {
strikethroughs.append(TextNodeStrikethrough(range: range, frame: CGRect(x: x, y: 0.0, width: abs(upperX - lowerX), height: fontLineHeight)))
} else if let paragraphStyle = attributes[NSAttributedString.Key.paragraphStyle] as? NSParagraphStyle {
headIndent = paragraphStyle.headIndent
}
if let attachment = attributes[NSAttributedString.Key.attachment] as? UIImage {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(coreTextLine, &ascent, &descent, nil)
addAttachment(attachment: attachment, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
}
@@ -2029,7 +2104,7 @@ open class TextView: UIView {
}
}
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: []))
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: [], attachments: attachments))
break
} else {
if lineCharacterCount > 0 {
@@ -2089,6 +2164,14 @@ open class TextView: UIView {
} else if let paragraphStyle = attributes[NSAttributedString.Key.paragraphStyle] as? NSParagraphStyle {
headIndent = paragraphStyle.headIndent
}
if let attachment = attributes[NSAttributedString.Key.attachment] as? UIImage {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(coreTextLine, &ascent, &descent, nil)
addAttachment(attachment: attachment, line: coreTextLine, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
let lineWidth = ceil(CGFloat(CTLineGetTypographicBounds(coreTextLine, nil, nil, nil) - CTLineGetTrailingWhitespaceWidth(coreTextLine)))
@@ -2109,7 +2192,7 @@ open class TextView: UIView {
}
}
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: []))
lines.append(TextNodeLine(line: coreTextLine, frame: lineFrame, range: NSMakeRange(lineRange.location, lineRange.length), isRTL: isRTL, strikethroughs: strikethroughs, spoilers: spoilers, spoilerWords: spoilerWords, embeddedItems: [], attachments: attachments))
} else {
if !lines.isEmpty {
layoutSize.height += fontLineSpacing
@@ -2229,30 +2312,47 @@ open class TextView: UIView {
context.clip(to: clipRects)
}
let glyphRuns = CTLineGetGlyphRuns(line.line) as NSArray
if glyphRuns.count != 0 {
for run in glyphRuns {
let run = run as! CTRun
let glyphCount = CTRunGetGlyphCount(run)
CTRunDraw(run, context, CFRangeMake(0, glyphCount))
if line.attachments.isEmpty {
let glyphRuns = CTLineGetGlyphRuns(line.line) as NSArray
if glyphRuns.count != 0 {
for run in glyphRuns {
let run = run as! CTRun
let glyphCount = CTRunGetGlyphCount(run)
CTRunDraw(run, context, CFRangeMake(0, glyphCount))
}
}
} else {
let glyphRuns = CTLineGetGlyphRuns(line.line) as NSArray
if glyphRuns.count != 0 {
for run in glyphRuns {
let run = run as! CTRun
let stringRange = CTRunGetStringRange(run)
if line.attachments.contains(where: { $0.range.contains(stringRange.location) }) {
continue
}
let glyphCount = CTRunGetGlyphCount(run)
CTRunDraw(run, context, CFRangeMake(0, glyphCount))
}
}
}
// if !line.strikethroughs.isEmpty {
// for strikethrough in line.strikethroughs {
// var textColor: UIColor?
// layout.attributedString?.enumerateAttributes(in: NSMakeRange(line.range.location, line.range.length), options: []) { attributes, range, _ in
// if range == strikethrough.range, let color = attributes[NSAttributedString.Key.foregroundColor] as? UIColor {
// textColor = color
// }
// }
// if let textColor = textColor {
// context.setFillColor(textColor.cgColor)
// }
// let frame = strikethrough.frame.offsetBy(dx: lineFrame.minX, dy: lineFrame.minY)
// context.fill(CGRect(x: frame.minX, y: frame.minY - 5.0, width: frame.width, height: 1.0))
// }
// }
for attachment in line.attachments {
let image = attachment.attachment
var textColor: UIColor?
layout.attributedString?.enumerateAttributes(in: attachment.range, options: []) { attributes, range, _ in
if let color = attributes[NSAttributedString.Key.foregroundColor] as? UIColor {
textColor = color
}
}
if let textColor {
if let tintedImage = generateTintedImage(image: image, color: textColor) {
let imageRect = CGRect(origin: CGPoint(x: attachment.frame.midX - tintedImage.size.width * 0.5, y: attachment.frame.midY - tintedImage.size.height * 0.5 + 1.0), size: tintedImage.size).offsetBy(dx: lineFrame.minX, dy: lineFrame.minY)
context.draw(tintedImage.cgImage!, in: imageRect)
}
}
}
if !line.spoilers.isEmpty {
if layout.displaySpoilers {