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https://github.com/ShareX/ShareX.git
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244 lines
No EOL
7.4 KiB
C#
244 lines
No EOL
7.4 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2017 ShareX Team
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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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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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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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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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namespace ShareX.ScreenCaptureLib
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{
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public class LineDrawingShape : BaseDrawingShape
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{
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public const int MaximumCenterPointCount = 5;
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public override ShapeType ShapeType { get; } = ShapeType.DrawingLine;
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public bool CenterNodeActive { get; set; }
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public Point[] CenterPoints { get; set; } = new Point[MaximumCenterPointCount];
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public int CenterPointCount { get; set; }
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public override bool IsValidShape => StartPosition != EndPosition;
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public override void OnConfigLoad()
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{
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base.OnConfigLoad();
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CenterPointCount = AnnotationOptions.LineCenterPointCount;
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if (Manager.NodesVisible)
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{
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OnNodeVisible();
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}
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}
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public override void OnConfigSave()
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{
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base.OnConfigSave();
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AnnotationOptions.LineCenterPointCount = CenterPointCount;
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}
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public override void OnUpdate()
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{
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base.OnUpdate();
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if (CenterNodeActive)
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{
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Rectangle = CreatePoints().CreateRectangle();
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}
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}
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public override void OnDraw(Graphics g)
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{
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DrawLine(g);
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}
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protected void DrawLine(Graphics g)
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{
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List<Point> points = CreatePoints();
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if (Shadow)
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{
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List<Point> shadowPoints = new List<Point>();
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foreach (Point point in points)
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{
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shadowPoints.Add(point.Add(ShadowOffset));
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}
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DrawLine(g, ShadowColor, BorderSize, shadowPoints);
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}
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DrawLine(g, BorderColor, BorderSize, points);
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}
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protected void DrawLine(Graphics g, Color borderColor, int borderSize, List<Point> points)
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{
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if (borderSize > 0 && borderColor.A > 0)
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{
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g.SmoothingMode = SmoothingMode.HighQuality;
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if (borderSize.IsEvenNumber())
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{
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g.PixelOffsetMode = PixelOffsetMode.Half;
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}
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using (Pen pen = CreatePen(borderColor, borderSize))
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{
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if (points.Count > 2)
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{
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g.DrawCurve(pen, points.ToArray());
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}
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else
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{
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g.DrawLine(pen, points[0], points[1]);
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}
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}
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g.SmoothingMode = SmoothingMode.None;
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g.PixelOffsetMode = PixelOffsetMode.Default;
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}
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}
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private List<Point> CreatePoints()
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{
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List<Point> points = new List<Point>();
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points.Add(StartPosition);
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if (CenterNodeActive)
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{
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for (int i = 0; i < CenterPointCount; i++)
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{
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points.Add(CenterPoints[i]);
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}
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}
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points.Add(EndPosition);
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return points;
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}
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protected virtual Pen CreatePen(Color borderColor, int borderSize)
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{
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return new Pen(borderColor, borderSize)
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{
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StartCap = LineCap.Round,
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EndCap = LineCap.Round,
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LineJoin = LineJoin.Round
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};
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}
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public override void Move(int x, int y)
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{
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StartPosition = StartPosition.Add(x, y);
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EndPosition = EndPosition.Add(x, y);
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for (int i = 0; i < CenterPointCount; i++)
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{
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CenterPoints[i] = CenterPoints[i].Add(x, y);
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}
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}
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public override void Resize(int x, int y, bool fromBottomRight)
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{
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if (fromBottomRight)
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{
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EndPosition = EndPosition.Add(x, y);
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}
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else
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{
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StartPosition = StartPosition.Add(x, y);
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}
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}
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public override void OnNodeVisible()
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{
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for (int i = 0; i < 8; i++)
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{
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ResizeNode node = Manager.ResizeNodes[i];
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node.Shape = NodeShape.Circle;
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node.Visible = false;
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}
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for (int i = 0; i < 2 + CenterPointCount; i++)
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{
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Manager.ResizeNodes[i].Visible = true;
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}
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}
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public override void OnNodeUpdate()
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{
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if (Manager.ResizeNodes[0].IsDragging)
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{
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Manager.IsResizing = true;
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StartPosition = InputManager.MousePosition0Based;
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}
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else if (Manager.ResizeNodes[1].IsDragging)
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{
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Manager.IsResizing = true;
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EndPosition = InputManager.MousePosition0Based;
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}
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else
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{
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for (int i = 2; i < 2 + CenterPointCount; i++)
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{
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if (Manager.ResizeNodes[i].IsDragging)
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{
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CenterNodeActive = true;
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Manager.IsResizing = true;
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CenterPoints[i - 2] = InputManager.MousePosition0Based;
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}
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}
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}
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}
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public override void OnNodePositionUpdate()
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{
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Manager.ResizeNodes[0].Position = StartPosition;
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Manager.ResizeNodes[1].Position = EndPosition;
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if (!CenterNodeActive)
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{
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for (int i = 0; i < CenterPointCount; i++)
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{
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CenterPoints[i] = new Point((int)MathHelpers.Lerp(StartPosition.X, EndPosition.X, (i + 1f) / (CenterPointCount + 1f)),
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(int)MathHelpers.Lerp(StartPosition.Y, EndPosition.Y, (i + 1f) / (CenterPointCount + 1f)));
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}
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}
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for (int i = 2; i < 2 + CenterPointCount; i++)
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{
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Manager.ResizeNodes[i].Position = CenterPoints[i - 2];
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}
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Manager.ResizeNodes[0].Visible = !Manager.ResizeNodes[0].Rectangle.IntersectsWith(Manager.ResizeNodes[1].Rectangle);
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for (int i = 2; i < 2 + CenterPointCount; i++)
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{
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Manager.ResizeNodes[i].Visible = !Manager.ResizeNodes[i].Rectangle.IntersectsWith(Manager.ResizeNodes[1].Rectangle);
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}
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}
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}
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} |