123 lines
4.2 KiB
C#
123 lines
4.2 KiB
C#
/*
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Copyright (c) 2014, Lars Brubaker
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using MatterHackers.Agg;
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using MatterHackers.Agg.Font;
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using MatterHackers.Agg.UI;
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using MatterHackers.VectorMath;
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namespace MatterHackers.MatterControl
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{
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public class TextScrollWidget : GuiWidget
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{
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const int TOTOL_POW2 = 64;
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int lineCount = 0;
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string[] lines = new string[TOTOL_POW2];
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public RGBA_Bytes TextColor = new RGBA_Bytes(102, 102, 102);
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public TextScrollWidget()
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{
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}
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public void WriteLine(Object sender, EventArgs e)
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{
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StringEventArgs lineString = e as StringEventArgs;
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Write(lineString.Data + "\n");
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}
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TypeFacePrinter printer = new TypeFacePrinter();
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public void Write(string lineString)
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{
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string[] splitOnNL = lineString.Split('\n');
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foreach (string line in splitOnNL)
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{
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if (line.Length > 0)
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{
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printer.Text = line;
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Vector2 stringSize = printer.GetSize();
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int arrayIndex = (lineCount % TOTOL_POW2);
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lines[arrayIndex] = line;
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lineCount++;
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}
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}
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Invalidate();
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}
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public void WriteToFile(string filePath)
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{
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System.IO.File.WriteAllLines(@filePath, lines);
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}
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public override void OnDraw(Graphics2D graphics2D)
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{
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TypeFacePrinter printer = new TypeFacePrinter();
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printer.DrawFromHintedCache = true;
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RectangleDouble Bounds = LocalBounds;
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double y = LocalBounds.Bottom + printer.TypeFaceStyle.EmSizeInPixels * (TOTOL_POW2 - 1) + 5;
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for (int index = lineCount; index < lineCount + TOTOL_POW2; index++)
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{
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if (y > LocalBounds.Top)
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{
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y -= printer.TypeFaceStyle.EmSizeInPixels;
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continue;
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}
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int arrayIndex = (index % TOTOL_POW2);
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if (lines[arrayIndex] != null)
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{
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printer.Text = lines[arrayIndex];
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printer.Origin = new Vector2(Bounds.Left + 2, y);
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printer.Render(graphics2D, TextColor);
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}
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y -= printer.TypeFaceStyle.EmSizeInPixels;
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if (y < -printer.TypeFaceStyle.EmSizeInPixels)
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{
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break;
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}
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}
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base.OnDraw(graphics2D);
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}
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public void Clear()
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{
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for (int index = 0; index < TOTOL_POW2; index++)
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{
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lines[index] = "";
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}
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lineCount = 0;
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}
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}
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}
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