3b71bed738
git-svn-id: https://lsleditor.svn.sourceforge.net/svnroot/lsleditor@33 3f4676ac-adda-40fd-8265-58d1435b1672
142 lines
4.4 KiB
C#
142 lines
4.4 KiB
C#
// /**
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// ********
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// *
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// * ORIGINAL CODE BASE IS Copyright (C) 2006-2010 by Alphons van der Heijden
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// * The code was donated on 4/28/2010 by Alphons van der Heijden
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// * To Brandon 'Dimentox Travanti' Husbands & Malcolm J. Kudra, who in turn License under the GPLv2.
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// * In agreement with Alphons van der Heijden's wishes.
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// *
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// * The community would like to thank Alphons for all of his hard work, blood sweat and tears.
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// * Without his work the community would be stuck with crappy editors.
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// *
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// * The source code in this file ("Source Code") is provided by The LSLEditor Group
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// * to you under the terms of the GNU General Public License, version 2.0
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// * ("GPL"), unless you have obtained a separate licensing agreement
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// * ("Other License"), formally executed by you and The LSLEditor Group. Terms of
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// * the GPL can be found in the gplv2.txt document.
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// *
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// ********
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// * GPLv2 Header
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// ********
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// * LSLEditor, a External editor for the LSL Language.
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// * Copyright (C) 2010 The LSLEditor Group.
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//
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// * This program is free software; you can redistribute it and/or
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// * modify it under the terms of the GNU General Public License
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// * as published by the Free Software Foundation; either version 2
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// * of the License, or (at your option) any later version.
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// *
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// * This program is distributed in the hope that it will be useful,
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// * but WITHOUT ANY WARRANTY; without even the implied warranty of
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// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// * GNU General Public License for more details.
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// *
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// * You should have received a copy of the GNU General Public License
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// * along with this program; if not, write to the Free Software
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// * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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// ********
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// *
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// * The above copyright notice and this permission notice shall be included in all
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// * copies or substantial portions of the Software.
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// *
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// ********
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// */
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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namespace LSLEditor.Editor
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{
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public partial class Numbered : UserControl
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{
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public RichTextBox richTextBox1;
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private Brush brush;
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public float LineHeight;
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public Numbered()
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{
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InitializeComponent();
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this.SetStyle(
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ControlStyles.DoubleBuffer |
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ControlStyles.UserPaint |
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ControlStyles.AllPaintingInWmPaint,
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true);
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this.UpdateStyles();
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brush = new SolidBrush(this.ForeColor);
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LineHeight = 0.0F;
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}
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private void updateNumberLabel(PaintEventArgs e)
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{
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if (this.brush == null)
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return;
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if (this.ClientSize.Width <= 0 || this.ClientSize.Height <= 0)
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return;
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int delta = 0;
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int firstLine = 0;
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int lastLine = 10;
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Font font = this.Font;
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if (this.richTextBox1 == null)
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{
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LineHeight = 16.0F;
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}
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else
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{
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//we get index of first visible char and number of first visible line
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Point pos = new Point(0, 0);
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int firstIndex = this.richTextBox1.GetCharIndexFromPosition(pos);
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firstLine = this.richTextBox1.GetLineFromCharIndex(firstIndex);
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font = this.richTextBox1.Font;
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if (LineHeight < 0.01)
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{
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if (this.richTextBox1.Lines.Length > 1)
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{
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Point pos1 = this.richTextBox1.GetPositionFromCharIndex(this.richTextBox1.GetFirstCharIndexFromLine(1));
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LineHeight = pos1.Y;
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}
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}
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lastLine = Math.Min(this.richTextBox1.Lines.Length, 2 + firstLine + (int)(this.richTextBox1.ClientRectangle.Height / LineHeight));
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int intCharIndex = this.richTextBox1.GetCharIndexFromPosition(Point.Empty);
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delta = 1 + this.richTextBox1.GetPositionFromCharIndex(intCharIndex).Y % font.Height;
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}
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// here we go
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lastLine = Math.Max(lastLine, 1);
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Graphics g = e.Graphics;
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g.Clear(this.BackColor);
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if(this.richTextBox1==null)
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g.SetClip(new Rectangle(0, 0, this.Width, this.Height));
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else
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g.SetClip(new Rectangle(0, 0, this.Width, this.richTextBox1.ClientRectangle.Height));
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for (int i = firstLine; i < lastLine; i++)
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g.DrawString(string.Format("{0:0###}", i + 1), font, brush,
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new PointF(0F, delta + (i - firstLine) * LineHeight) );
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//g.DrawLine(new Pen(brush), backBuffer.Width - 1, 0, backBuffer.Width - 1, backBuffer.Height);
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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updateNumberLabel(e);
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}
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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//base.OnPaintBackground(e);
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}
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}
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}
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