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+import Cocoa
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+
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+struct GrCocoaSurface {
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+ var root: grSurface
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+ var window: NSWindow?
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+ var bitmapRep: NSBitmapImageRep?
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+ var imageView: NSImageView?
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+
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+ init(root: grSurface) {
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+ self.root = root
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+ }
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+
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+ mutating func initializeSurface(bitmap: inout grBitmap) -> Bool {
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+ let width = Int(bitmap.width)
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+ let height = Int(bitmap.rows)
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+
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+ self.bitmapRep = NSBitmapImageRep(
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+ bitmapDataPlanes: nil,
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+ pixelsWide: width,
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+ pixelsHigh: height,
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+ bitsPerSample: 8,
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+ samplesPerPixel: 4,
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+ hasAlpha: true,
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+ isPlanar: false,
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+ colorSpaceName: .deviceRGB,
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+ bitmapFormat: [],
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+ bytesPerRow: width * 4,
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+ bitsPerPixel: 32
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+ )
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+
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+ self.window = NSWindow(
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+ contentRect: NSMakeRect(0, 0, CGFloat(width), CGFloat(height)),
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+ styleMask: [.titled, .closable, .resizable],
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+ backing: .buffered,
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+ defer: false
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+ )
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+ self.window?.title = "FreeType Cocoa Demo"
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+
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+ self.imageView = NSImageView(frame: NSMakeRect(0, 0, CGFloat(width), CGFloat(height)))
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+ self.imageView?.image = NSImage(size: NSSize(width: width, height: height))
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+ self.window?.contentView?.addSubview(self.imageView!)
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+ self.window?.makeKeyAndOrderFront(nil)
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+
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+ self.root.bitmap = bitmap
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+ return true
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+ }
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+
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48
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+ mutating func releaseSurface() {
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+ self.window?.close()
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+ self.bitmapRep = nil
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+ }
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+
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53
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+ func refreshRectangle(x: Int, y: Int, width: Int, height: Int) {
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+ // update bitmap data here
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+
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+ self.imageView?.image?.addRepresentation(self.bitmapRep!)
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+ let rect = NSRect(x: CGFloat(x), y: CGFloat(y), width: CGFloat(width), height: CGFloat(height))
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58
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+ self.imageView?.setNeedsDisplay(rect)
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+ }
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60
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+
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61
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+ func listenEvent(eventMask: Int32, event: UnsafeMutablePointer<grEvent>) -> Int32 {
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+ // event handling here
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+ return 0
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64
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+ }
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65
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+}
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66
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+
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67
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+// Expose functions to C
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+@_cdecl("gr_cocoa_device_init")
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69
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+func gr_cocoa_device_init() -> Int32 {
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70
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+ // Initialization code for Cocoa
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+ return 0
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+}
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73
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+
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74
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+@_cdecl("gr_cocoa_device_done")
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75
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+func gr_cocoa_device_done() {
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76
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+ // Cleanup code for Cocoa
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+}
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+
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79
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+@_cdecl("gr_cocoa_surface_init")
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80
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+func gr_cocoa_surface_init(surface: UnsafeMutablePointer<grSurface>?, bitmap: UnsafeMutablePointer<grBitmap>?) -> Int32 {
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81
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+ guard let surface = surface, let bitmap = bitmap else { return 0 }
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82
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+ var cocoaSurface = GrCocoaSurface(root: surface.pointee)
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+ return cocoaSurface.initializeSurface(bitmap: &bitmap.pointee) ? 1 : 0
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84
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+}
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85
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+
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86
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+@_cdecl("gr_cocoa_surface_done")
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87
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+func gr_cocoa_surface_done(surface: UnsafeMutablePointer<grSurface>?) {
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88
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+ guard let surface = surface else { return }
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89
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+ var cocoaSurface = GrCocoaSurface(root: surface.pointee)
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90
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+ cocoaSurface.releaseSurface()
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91
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+}
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92
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+
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93
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+@_cdecl("gr_cocoa_surface_refresh_rectangle")
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94
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+func gr_cocoa_surface_refresh_rectangle(surface: UnsafeMutablePointer<grSurface>?, x: Int32, y: Int32, width: Int32, height: Int32) {
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95
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+ guard let surface = surface else { return }
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96
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+ let cocoaSurface = GrCocoaSurface(root: surface.pointee)
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97
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+ cocoaSurface.refreshRectangle(x: Int(x), y: Int(y), width: Int(width), height: Int(height))
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98
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+}
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99
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+
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100
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+@_cdecl("gr_cocoa_surface_listen_event")
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101
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+func gr_cocoa_surface_listen_event(surface: UnsafeMutablePointer<grSurface>?, eventMask: Int32, event: UnsafeMutablePointer<grEvent>?) -> Int32 {
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102
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+ guard let surface = surface, let event = event else { return 0 }
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103
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+ let cocoaSurface = GrCocoaSurface(root: surface.pointee)
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104
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+ return cocoaSurface.listenEvent(eventMask: eventMask, event: event)
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105
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+} |