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https://github.com/ShareX/ShareX.git
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163 lines
No EOL
6.4 KiB
C#
163 lines
No EOL
6.4 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2014 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*/
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using Greenshot.Drawing.Fields;
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using Greenshot.Plugin.Drawing;
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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namespace Greenshot.Drawing
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{
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/// <summary>
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/// Description of LineContainer.
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/// </summary>
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[Serializable()]
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public class ArrowContainer : LineContainer
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{
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public enum ArrowHeadCombination { NONE, START_POINT, END_POINT, BOTH };
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private static readonly AdjustableArrowCap ARROW_CAP = new AdjustableArrowCap(4, 6);
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public ArrowContainer(Surface parent)
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: base(parent)
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{
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}
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/// <summary>
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/// Do not use the base, just override so we have our own defaults
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/// </summary>
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protected override void InitializeFields()
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{
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AddField(GetType(), FieldType.LINE_THICKNESS, 2);
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AddField(GetType(), FieldType.LINE_COLOR, DefaultLineColor);
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AddField(GetType(), FieldType.FILL_COLOR, Color.Transparent);
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AddField(GetType(), FieldType.SHADOW, true);
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AddField(GetType(), FieldType.ARROWHEADS, ArrowHeadCombination.END_POINT);
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}
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public override void Draw(Graphics graphics, RenderMode rm)
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{
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
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bool shadow = GetFieldValueAsBool(FieldType.SHADOW);
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if (lineThickness > 0)
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{
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graphics.SmoothingMode = SmoothingMode.HighQuality;
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graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
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graphics.CompositingQuality = CompositingQuality.HighQuality;
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graphics.PixelOffsetMode = PixelOffsetMode.None;
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Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
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ArrowHeadCombination heads = (ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS);
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if (lineThickness > 0)
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{
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if (shadow)
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{
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//draw shadow first
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int basealpha = 100;
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int alpha = basealpha;
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int steps = 5;
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int currentStep = 1;
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while (currentStep <= steps)
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{
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using (Pen shadowCapPen = new Pen(Color.FromArgb(alpha, 100, 100, 100), lineThickness))
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{
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SetArrowHeads(heads, shadowCapPen);
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graphics.DrawLine(shadowCapPen,
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Left + currentStep,
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Top + currentStep,
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Left + currentStep + Width,
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Top + currentStep + Height);
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currentStep++;
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alpha = alpha - (basealpha / steps);
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}
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}
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}
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using (Pen pen = new Pen(lineColor, lineThickness))
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{
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SetArrowHeads(heads, pen);
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graphics.DrawLine(pen, Left, Top, Left + Width, Top + Height);
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}
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}
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}
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}
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private void SetArrowHeads(ArrowHeadCombination heads, Pen pen)
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{
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if (heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.START_POINT)
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{
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pen.CustomStartCap = ARROW_CAP;
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}
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if (heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.END_POINT)
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{
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pen.CustomEndCap = ARROW_CAP;
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}
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}
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public override Rectangle DrawingBounds
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{
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get
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{
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
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if (lineThickness > 0)
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{
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using (Pen pen = new Pen(Color.White))
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{
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pen.Width = lineThickness;
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SetArrowHeads((ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS), pen);
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using (GraphicsPath path = new GraphicsPath())
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{
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path.AddLine(Left, Top, Left + Width, Top + Height);
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using (Matrix matrix = new Matrix())
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{
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Rectangle drawingBounds = Rectangle.Round(path.GetBounds(matrix, pen));
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drawingBounds.Inflate(2, 2);
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return drawingBounds;
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}
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}
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}
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}
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return Rectangle.Empty;
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}
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}
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public override bool ClickableAt(int x, int y)
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{
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS) + 10;
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if (lineThickness > 0)
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{
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using (Pen pen = new Pen(Color.White))
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{
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pen.Width = lineThickness;
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SetArrowHeads((ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS), pen);
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using (GraphicsPath path = new GraphicsPath())
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{
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path.AddLine(Left, Top, Left + Width, Top + Height);
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return path.IsOutlineVisible(x, y, pen);
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}
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}
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}
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return false;
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}
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}
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} |