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https://github.com/ShareX/ShareX.git
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538 lines
18 KiB
C#
538 lines
18 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) 2007-2023 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;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace ShareX.ScreenCaptureLib
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{
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public abstract class BaseShape : IDisposable
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{
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public abstract ShapeCategory ShapeCategory { get; }
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public abstract ShapeType ShapeType { get; }
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private RectangleF rectangle;
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public RectangleF Rectangle
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{
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get
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{
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return rectangle;
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}
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set
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{
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rectangle = value;
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startPosition = rectangle.Location;
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endPosition = new PointF(rectangle.X + rectangle.Width - 1, rectangle.Y + rectangle.Height - 1);
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}
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}
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public RectangleF RectangleInsideCanvas => RectangleF.Intersect(Rectangle, Manager.Form.CanvasRectangle);
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public bool IsInsideCanvas => !RectangleInsideCanvas.IsEmpty;
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public virtual bool LimitRectangleToInsideCanvas { get; }
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private PointF startPosition;
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public PointF StartPosition
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{
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get
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{
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return startPosition;
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}
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private set
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{
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startPosition = value;
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rectangle = CaptureHelpers.CreateRectangle(startPosition, endPosition);
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}
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}
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private PointF endPosition;
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public PointF EndPosition
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{
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get
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{
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return endPosition;
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}
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private set
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{
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endPosition = value;
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rectangle = CaptureHelpers.CreateRectangle(startPosition, endPosition);
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}
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}
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public SizeF InitialSize { get; set; }
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public virtual bool IsValidShape => !Rectangle.IsEmpty && Rectangle.Width >= Options.MinimumSize && Rectangle.Height >= Options.MinimumSize;
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public virtual bool IsSelectable => Manager.CurrentTool == ShapeType || Manager.CurrentTool == ShapeType.ToolSelect;
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public bool ForceProportionalResizing { get; protected set; }
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internal ShapeManager Manager { get; set; }
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protected InputManager InputManager => Manager.InputManager;
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protected RegionCaptureOptions Options => Manager.Options;
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protected AnnotationOptions AnnotationOptions => Manager.Options.AnnotationOptions;
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private PointF tempNodePos, tempStartPos, tempEndPos;
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private RectangleF tempRectangle;
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public bool IsHandledBySelectTool
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{
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get
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{
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switch (ShapeCategory)
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{
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case ShapeCategory.Drawing:
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case ShapeCategory.Effect:
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return true;
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default:
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return false;
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}
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}
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}
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public virtual bool Intersects(PointF position)
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{
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return Rectangle.Contains(position);
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}
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internal void ChangeNodeShape(NodeShape nodeShape)
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{
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foreach (ResizeNode node in Manager.ResizeNodes)
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{
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node.Shape = nodeShape;
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}
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}
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protected virtual void UseLightResizeNodes()
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{
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ChangeNodeShape(NodeShape.Square);
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}
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protected void UpdateNodeShape()
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{
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if (Options.UseLightResizeNodes)
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{
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UseLightResizeNodes();
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}
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else
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{
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ChangeNodeShape(NodeShape.CustomNode);
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}
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}
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public virtual void ShowNodes()
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{
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UpdateNodeShape();
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Manager.NodesVisible = true;
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}
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public virtual void Remove()
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{
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Manager.DeleteShape(this);
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}
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public void AddShapePath(GraphicsPath gp, int sizeOffset = 0)
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{
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RectangleF rect = Rectangle;
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if (sizeOffset != 0)
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{
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rect = rect.SizeOffset(sizeOffset);
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}
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OnShapePathRequested(gp, rect);
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}
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public virtual void Move(float x, float 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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}
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public void Move(PointF offset)
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{
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Move(offset.X, offset.Y);
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}
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public void MoveAbsolute(float x, float y, bool center = false)
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{
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if (center)
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{
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x -= Rectangle.Size.Width / 2;
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y -= Rectangle.Size.Height / 2;
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}
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Move(x - Rectangle.X, y - Rectangle.Y);
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}
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public void MoveAbsolute(PointF point, bool center = false)
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{
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MoveAbsolute(point.X, point.Y, center);
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}
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public virtual 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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Rectangle = Rectangle.SizeOffset(x, y);
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}
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else
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{
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Rectangle = Rectangle.LocationOffset(x, y).SizeOffset(-x, -y);
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}
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}
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public virtual BaseShape Duplicate()
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{
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ShapeManager manager = Manager;
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Manager = null;
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BaseShape shape = this.Copy();
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Manager = manager;
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shape.Manager = manager;
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return shape;
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}
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public virtual void OnCreating()
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{
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PointF pos = Manager.Form.ScaledClientMousePosition;
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if (Options.IsFixedSize && ShapeCategory == ShapeCategory.Region)
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{
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Manager.IsMoving = true;
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Rectangle = new RectangleF(new PointF(pos.X - (Options.FixedSize.Width / 2), pos.Y - (Options.FixedSize.Height / 2)), Options.FixedSize);
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OnCreated();
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}
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else
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{
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Manager.IsCreating = true;
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Rectangle = new RectangleF(pos.X, pos.Y, 1, 1);
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}
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}
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public virtual void OnCreated()
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{
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InitialSize = Rectangle.Size;
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if (ShapeCategory == ShapeCategory.Drawing || ShapeCategory == ShapeCategory.Effect)
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{
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Manager.OnImageModified();
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}
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}
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public virtual void OnMoving()
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{
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}
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public virtual void OnMoved()
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{
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}
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public virtual void OnResizing()
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{
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}
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public virtual void OnResized()
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{
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}
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public virtual void OnUpdate()
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{
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if (Manager.IsCreating)
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{
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PointF pos = Manager.Form.ScaledClientMousePosition;
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if (Manager.IsCornerMoving && !Manager.IsPanning)
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{
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StartPosition = StartPosition.Add(Manager.Form.ScaledClientMouseVelocity);
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}
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if (Manager.IsProportionalResizing || ForceProportionalResizing)
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{
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float degree, startDegree;
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if (ShapeType == ShapeType.DrawingLine || ShapeType == ShapeType.DrawingArrow)
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{
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degree = 45;
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startDegree = 0;
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}
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else
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{
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degree = 90;
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startDegree = 45;
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}
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pos = CaptureHelpers.SnapPositionToDegree(StartPosition, pos, degree, startDegree).Round();
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}
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else if (Manager.IsSnapResizing)
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{
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pos = Manager.SnapPosition(StartPosition, pos);
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}
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EndPosition = pos;
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}
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else if (Manager.IsMoving && !Manager.IsPanning)
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{
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Move(Manager.Form.ScaledClientMouseVelocity);
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}
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if (LimitRectangleToInsideCanvas)
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{
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StartPosition = StartPosition.Restrict(Manager.Form.CanvasRectangle);
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EndPosition = EndPosition.Restrict(Manager.Form.CanvasRectangle);
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}
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}
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public virtual void OnShapePathRequested(GraphicsPath gp, RectangleF rect)
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{
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gp.AddRectangle(rect);
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}
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public virtual void OnConfigLoad()
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{
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}
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public virtual void OnConfigSave()
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{
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}
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public virtual void OnDoubleClicked()
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{
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}
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public virtual 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.Visible = true;
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}
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}
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public virtual void OnNodeUpdate()
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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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if (node.IsDragging)
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{
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Manager.IsResizing = true;
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if (!InputManager.IsBeforeMouseDown(MouseButtons.Left))
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{
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tempNodePos = node.Position;
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tempStartPos = Rectangle.Location;
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tempEndPos = new PointF(Rectangle.X + Rectangle.Width - 1, Rectangle.Y + Rectangle.Height - 1);
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tempRectangle = Rectangle;
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OnResizing();
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}
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if (Manager.IsCornerMoving || Manager.IsPanning)
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{
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tempStartPos.Offset(Manager.Form.ScaledClientMouseVelocity);
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tempEndPos.Offset(Manager.Form.ScaledClientMouseVelocity);
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tempNodePos.Offset(Manager.Form.ScaledClientMouseVelocity);
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tempRectangle.LocationOffset(Manager.Form.ScaledClientMouseVelocity);
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}
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PointF pos = Manager.Form.ScaledClientMousePosition;
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PointF startPos = tempStartPos;
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PointF endPos = tempEndPos;
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NodePosition nodePosition = (NodePosition)i;
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float x = pos.X - tempNodePos.X;
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switch (nodePosition)
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{
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case NodePosition.TopLeft:
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case NodePosition.Left:
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case NodePosition.BottomLeft:
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startPos.X += x;
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break;
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case NodePosition.TopRight:
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case NodePosition.Right:
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case NodePosition.BottomRight:
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endPos.X += x;
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break;
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}
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float y = pos.Y - tempNodePos.Y;
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switch (nodePosition)
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{
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case NodePosition.TopLeft:
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case NodePosition.Top:
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case NodePosition.TopRight:
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startPos.Y += y;
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break;
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case NodePosition.BottomLeft:
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case NodePosition.Bottom:
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case NodePosition.BottomRight:
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endPos.Y += y;
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break;
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}
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StartPosition = startPos;
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EndPosition = endPos;
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if (Manager.IsProportionalResizing && !InitialSize.IsEmpty)
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{
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switch (nodePosition)
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{
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case NodePosition.Top:
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case NodePosition.Right:
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case NodePosition.Bottom:
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case NodePosition.Left:
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return;
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}
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double ratio = Math.Min(Rectangle.Width / (double)InitialSize.Width, Rectangle.Height / (double)InitialSize.Height);
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int newWidth = (int)Math.Round(InitialSize.Width * ratio);
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int newHeight = (int)Math.Round(InitialSize.Height * ratio);
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PointF anchor = new PointF();
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switch (nodePosition)
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{
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case NodePosition.TopLeft:
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case NodePosition.Left:
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case NodePosition.BottomLeft:
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anchor.X = tempRectangle.Right - 1;
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break;
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case NodePosition.TopRight:
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case NodePosition.Right:
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case NodePosition.BottomRight:
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anchor.X = tempRectangle.X;
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break;
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}
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switch (nodePosition)
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{
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case NodePosition.TopLeft:
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case NodePosition.Top:
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case NodePosition.TopRight:
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anchor.Y = tempRectangle.Bottom - 1;
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break;
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case NodePosition.BottomLeft:
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case NodePosition.Bottom:
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case NodePosition.BottomRight:
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anchor.Y = tempRectangle.Y;
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break;
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}
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RectangleF newRect = Rectangle;
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if (pos.X < anchor.X)
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{
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newRect.X = newRect.Right - newWidth;
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}
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newRect.Width = newWidth;
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if (pos.Y < anchor.Y)
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{
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newRect.Y = newRect.Bottom - newHeight;
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}
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newRect.Height = newHeight;
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Rectangle = newRect;
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}
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if (LimitRectangleToInsideCanvas)
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{
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Rectangle = RectangleInsideCanvas;
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}
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}
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}
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}
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public virtual void OnNodePositionUpdate()
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{
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float xStart = Rectangle.X;
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float xMid = Rectangle.X + (Rectangle.Width / 2);
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float xEnd = Rectangle.X + Rectangle.Width - 1;
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float yStart = Rectangle.Y;
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float yMid = Rectangle.Y + (Rectangle.Height / 2);
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float yEnd = Rectangle.Y + Rectangle.Height - 1;
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Manager.ResizeNodes[(int)NodePosition.TopLeft].Position = new PointF(xStart, yStart);
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Manager.ResizeNodes[(int)NodePosition.Top].Position = new PointF(xMid, yStart);
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Manager.ResizeNodes[(int)NodePosition.TopRight].Position = new PointF(xEnd, yStart);
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Manager.ResizeNodes[(int)NodePosition.Right].Position = new PointF(xEnd, yMid);
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Manager.ResizeNodes[(int)NodePosition.BottomRight].Position = new PointF(xEnd, yEnd);
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Manager.ResizeNodes[(int)NodePosition.Bottom].Position = new PointF(xMid, yEnd);
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Manager.ResizeNodes[(int)NodePosition.BottomLeft].Position = new PointF(xStart, yEnd);
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Manager.ResizeNodes[(int)NodePosition.Left].Position = new PointF(xStart, yMid);
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for (int i = 0; i < 8; i++)
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{
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Manager.ResizeNodes[i].Visible = true;
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}
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if (Manager.ResizeNodes[(int)NodePosition.Right].Rectangle.IntersectsWith(Manager.ResizeNodes[(int)NodePosition.BottomRight].Rectangle))
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{
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Manager.ResizeNodes[(int)NodePosition.Left].Visible =
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Manager.ResizeNodes[(int)NodePosition.Right].Visible = false;
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}
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if (Manager.ResizeNodes[(int)NodePosition.Bottom].Rectangle.IntersectsWith(Manager.ResizeNodes[(int)NodePosition.BottomRight].Rectangle))
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{
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Manager.ResizeNodes[(int)NodePosition.Top].Visible =
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Manager.ResizeNodes[(int)NodePosition.Bottom].Visible = false;
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}
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if (Manager.ResizeNodes[(int)NodePosition.TopRight].Rectangle.IntersectsWith(Manager.ResizeNodes[(int)NodePosition.BottomRight].Rectangle))
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{
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Manager.ResizeNodes[(int)NodePosition.TopLeft].Visible =
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Manager.ResizeNodes[(int)NodePosition.Top].Visible =
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Manager.ResizeNodes[(int)NodePosition.TopRight].Visible = false;
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}
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if (Manager.ResizeNodes[(int)NodePosition.BottomLeft].Rectangle.IntersectsWith(Manager.ResizeNodes[(int)NodePosition.BottomRight].Rectangle))
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{
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Manager.ResizeNodes[(int)NodePosition.TopLeft].Visible =
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Manager.ResizeNodes[(int)NodePosition.Left].Visible =
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Manager.ResizeNodes[(int)NodePosition.BottomLeft].Visible = false;
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}
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}
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public virtual void Dispose()
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{
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}
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}
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} |