91 lines
2.1 KiB
C#
91 lines
2.1 KiB
C#
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#region Using Directives
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using System;
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using System.Drawing;
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#endregion Using Directives
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namespace ScintillaNET
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{
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public class SnippetLinkEnd : ManagedRange
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{
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#region Methods
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public override void Change(int newStart, int newEnd)
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{
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Invalidate();
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// This actually changes Start and End
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base.Change(newStart, newEnd);
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}
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public override void Dispose()
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{
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if (!IsDisposed)
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{
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Invalidate();
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base.Dispose();
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}
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}
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public void Invalidate()
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{
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if(Scintilla != null && Start > 0)
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{
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INativeScintilla _ns = Scintilla as INativeScintilla;
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int x = _ns.PointXFromPosition(Start);
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int y = _ns.PointYFromPosition(Start) + _ns.TextHeight(0) - 2;
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// Invalidate the old Marker Location so that we don't get "Ghosts"
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Scintilla.Invalidate(new Rectangle(x-2, y, 5, 5));
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}
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}
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protected internal override void Paint(Graphics g)
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{
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base.Paint(g);
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if (IsDisposed)
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return;
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INativeScintilla _ns = Scintilla as INativeScintilla;
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int x = _ns.PointXFromPosition(Start);
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int y = _ns.PointYFromPosition(Start) + _ns.TextHeight(0) - 2;
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// Draw a red Triangle with a dark red border at the marker position
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g.FillPolygon(Brushes.Lime, new Point[] { new Point(x-2, y+4), new Point(x, y), new Point(x+2, y+4) });
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g.DrawPolygon(Pens.Green, new Point[] { new Point(x-2, y+4), new Point(x, y), new Point(x+2, y+4) });
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}
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#endregion Methods
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#region Properties
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// Drop Markers are points, not a spanned range.
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public override bool IsPoint
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{
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get
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{
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return true;
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}
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}
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#endregion Properties
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#region Constructors
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internal SnippetLinkEnd(int start, Scintilla scintilla) : base(start, start, scintilla)
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{
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}
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#endregion Constructors
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}
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}
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