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+//
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+// KMTextWithIconCell.swift
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+// PDF Reader Pro
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+//
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+// Created by lizhe on 2024/2/21.
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+//
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+
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+import Cocoa
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+
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+let SKTextWithIconStringKey = "string"
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+let SKTextWithIconImageKey = "image"
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+let BORDER_BETWEEN_EDGE_AND_IMAGE: CGFloat = 2.0
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+let BORDER_BETWEEN_IMAGE_AND_TEXT: CGFloat = 2.0
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+let IMAGE_OFFSET: CGFloat = 1.0
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+
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+class KMTextWithIconCell: NSTextFieldCell {
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+ private var imageCell: NSImageCell = NSImageCell()
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+
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+ override init(textCell string: String) {
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+ super.init(textCell: string)
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+ commonInit()
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+ }
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+
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+ required init(coder: NSCoder) {
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+ super.init(coder: coder)
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+ commonInit()
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+ }
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+
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+ private func commonInit() {
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+ imageCell.imageScaling = .scaleProportionallyUpOrDown
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+// if formatter == nil {
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+// formatter = DictionaryFormatter(key: SKTextWithIconStringKey)
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+// }
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+ }
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+
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+ override func copy(with zone: NSZone? = nil) -> Any {
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+ let copy = super.copy(with: zone) as! KMTextWithIconCell
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+ copy.imageCell = imageCell.copy() as! NSImageCell
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+ return copy
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+ }
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+
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+ override func cellSize(forBounds rect: NSRect) -> NSSize {
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+ var cellSize = super.cellSize(forBounds: rect)
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+ cellSize.width += cellSize.height - 1 + BORDER_BETWEEN_EDGE_AND_IMAGE + BORDER_BETWEEN_IMAGE_AND_TEXT
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+ cellSize.width = min(cellSize.width, rect.width)
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+ return cellSize
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+ }
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+
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+ private func textRect(forBounds rect: NSRect) -> NSRect {
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+ return KMShrinkRect(rect, NSHeight(rect) - 1 + BORDER_BETWEEN_EDGE_AND_IMAGE + BORDER_BETWEEN_IMAGE_AND_TEXT, .minX)
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+ }
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+
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+ private func iconRect(forBounds rect: NSRect) -> NSRect {
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+ return KMSliceRect(KMShrinkRect(rect, BORDER_BETWEEN_EDGE_AND_IMAGE, .minX), NSHeight(rect) - 1, .minX)
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+ }
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+
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+ override func drawInterior(withFrame cellFrame: NSRect, in controlView: NSView) {
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+ // let super draw the text
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+ let textRect = textRect(forBounds: cellFrame)
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+ super.drawInterior(withFrame: textRect, in: controlView)
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+
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+ // Draw the image
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+ var imageRect = iconRect(forBounds: cellFrame)
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+ imageRect = KMCenterRectVertically(rect: imageRect, height: NSWidth(imageRect), offset: IMAGE_OFFSET, flipped: controlView.isFlipped)
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+ imageCell.drawInterior(withFrame: imageRect, in: controlView)
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+ }
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+
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+ override func edit(withFrame cellFrame: NSRect, in controlView: NSView, editor textObj: NSText, delegate anObject: Any?, event: NSEvent?) {
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+ super.edit(withFrame: textRect(forBounds: cellFrame), in: controlView, editor: textObj, delegate: anObject, event: event)
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+ }
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+
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+ override func select(withFrame cellFrame: NSRect, in controlView: NSView, editor textObj: NSText, delegate anObject: Any?, start selStart: Int, length selLength: Int) {
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+ super.select(withFrame: textRect(forBounds: cellFrame), in: controlView, editor: textObj, delegate: anObject, start: selStart, length: selLength)
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+ }
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+
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+ override func hitTest(for event: NSEvent, in rect: NSRect, of controlView: NSView) -> NSCell.HitResult {
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+ let textRect = textRect(forBounds: rect)
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+ let mouseLoc = event.location(inPDFListView: controlView)
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+ var hit: NSCell.HitResult = []
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+ if NSMouseInRect(mouseLoc, textRect, controlView.isFlipped) {
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+ hit = super.hitTest(for: event, in: textRect, of: controlView)
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+ } else if NSMouseInRect(mouseLoc, iconRect(forBounds: rect), controlView.isFlipped) {
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+ hit = .contentArea
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+ }
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+ return hit
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+ }
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+
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+ override var objectValue: Any? {
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+ didSet {
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+ if let obj = objectValue as? NSDictionary {
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+ imageCell.image = obj[SKTextWithIconImageKey] as? NSImage
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+ }
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+ }
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+ }
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+
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+ var icon: NSImage? {
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+ return imageCell.image
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+ }
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+}
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+
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+extension KMTextWithIconCell {
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+ func KMSliceRect(_ rect: NSRect, _ amount: CGFloat, _ edge: NSRectEdge) -> NSRect {
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+ var rect = rect
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+ var ignored = NSRect.zero
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+ NSDivideRect(rect, &rect, &ignored, amount, edge);
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+ return rect
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+ }
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+
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+ func KMShrinkRect(_ rect: NSRect, _ amount: CGFloat, _ edge: NSRectEdge) -> NSRect {
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+ var rect = rect
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+ var ignored = NSRect.zero
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+ NSDivideRect(rect, &ignored, &rect, amount, edge);
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+ return rect
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+ }
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+
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+ func KMCenterRectVertically(rect: NSRect, height: CGFloat , offset: CGFloat, flipped: Bool) -> NSRect {
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+ var rect = rect
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+ rect.origin.y += 0.5 * (NSHeight(rect) - height);
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+ rect.origin.y = flipped ? ceil(rect.origin.y) - offset : floor(rect.origin.y) + offset;
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+ rect.size.height = height;
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+ return rect;
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+ }
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+}
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