105 lines
3.0 KiB
C#
105 lines
3.0 KiB
C#
using CPF.Mac.CoreFoundation;
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using CPF.Mac.CoreGraphics;
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using CPF.Mac.Foundation;
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using CPF.Mac.ObjCRuntime;
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using System;
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using System.Runtime.InteropServices;
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namespace CPF.Mac.CoreText
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{
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[Since(3, 2)]
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public class CTFramesetter : INativeObject, IDisposable
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{
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internal IntPtr handle;
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public IntPtr Handle => handle;
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internal CTFramesetter(IntPtr handle, bool owns)
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{
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if (handle == IntPtr.Zero)
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{
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throw ConstructorError.ArgumentNull(this, "handle");
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}
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this.handle = handle;
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if (!owns)
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{
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CFObject.CFRetain(handle);
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}
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}
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~CTFramesetter()
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{
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Dispose(disposing: false);
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}
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public void Dispose()
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{
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Dispose(disposing: true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (handle != IntPtr.Zero)
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{
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CFObject.CFRelease(handle);
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handle = IntPtr.Zero;
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}
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}
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[DllImport("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText")]
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private static extern IntPtr CTFramesetterCreateWithAttributedString(IntPtr @string);
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public CTFramesetter(NSAttributedString value)
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{
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if (value == null)
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{
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throw ConstructorError.ArgumentNull(this, "value");
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}
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handle = CTFramesetterCreateWithAttributedString(value.Handle);
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if (handle == IntPtr.Zero)
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{
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throw ConstructorError.Unknown(this);
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}
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}
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[DllImport("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText")]
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private static extern IntPtr CTFramesetterCreateFrame(IntPtr framesetter, NSRange stringRange, IntPtr path, IntPtr frameAttributes);
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public CTFrame GetFrame(NSRange stringRange, CGPath path, CTFrameAttributes frameAttributes)
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{
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if (path == null)
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{
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throw new ArgumentNullException("path");
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}
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IntPtr value = CTFramesetterCreateFrame(handle, stringRange, path.Handle, frameAttributes?.Dictionary.Handle ?? IntPtr.Zero);
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if (value == IntPtr.Zero)
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{
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return null;
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}
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return new CTFrame(value, owns: true);
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}
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[DllImport("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText")]
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private static extern IntPtr CTFramesetterGetTypesetter(IntPtr framesetter);
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public CTTypesetter GetTypesetter()
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{
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IntPtr value = CTFramesetterGetTypesetter(handle);
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if (value == IntPtr.Zero)
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{
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return null;
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}
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return new CTTypesetter(value, owns: false);
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}
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[DllImport("/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/CoreText")]
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private static extern CGSize CTFramesetterSuggestFrameSizeWithConstraints(IntPtr framesetter, NSRange stringRange, IntPtr frameAttributes, CGSize constraints, out NSRange fitRange);
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public CGSize SuggestFrameSize(NSRange stringRange, CTFrameAttributes frameAttributes, CGSize constraints, out NSRange fitRange)
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{
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return CTFramesetterSuggestFrameSizeWithConstraints(handle, stringRange, frameAttributes?.Dictionary.Handle ?? IntPtr.Zero, constraints, out fitRange);
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}
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}
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}
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