Canvas/CanvasCtrl/CanvasInterfaces.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace Canvas
{
	public interface ICanvasOwner
	{
		void SetPositionInfo(UnitPoint unitpos);
		void SetSnapInfo(ISnapPoint snap);
	}
	public interface ICanvas
	{
		IModel DataModel { get; }
		UnitPoint ScreenTopLeftToUnitPoint();
		UnitPoint ScreenBottomRightToUnitPoint();
		PointF ToScreen(UnitPoint unitpoint);
		float ToScreen(double unitvalue);
		double ToUnit(float screenvalue);
		UnitPoint ToUnit(PointF screenpoint);

		void Invalidate();
		IDrawObject CurrentObject { get; }

		Rectangle ClientRectangle { get; }
		Graphics Graphics { get; }
		Pen CreatePen(Color color, float unitWidth);
		void DrawLine(ICanvas canvas, Pen pen, UnitPoint p1, UnitPoint p2);
		void DrawArc(ICanvas canvas, Pen pen, UnitPoint center, float radius, float beginangle, float angle);
	}
	public interface IModel
	{
		float Zoom { get; set; }
		ICanvasLayer BackgroundLayer { get; }
		ICanvasLayer GridLayer { get; }
		ICanvasLayer[] Layers { get; }
		ICanvasLayer ActiveLayer { get; set; }
		ICanvasLayer GetLayer(string id);
		IDrawObject CreateObject(string type, UnitPoint point, ISnapPoint snappoint);
		void AddObject(ICanvasLayer layer, IDrawObject drawobject);
		void DeleteObjects(IEnumerable<IDrawObject> objects);
		void MoveObjects(UnitPoint offset, IEnumerable<IDrawObject> objects);
		void CopyObjects(UnitPoint offset, IEnumerable<IDrawObject> objects);
		void MoveNodes(UnitPoint position, IEnumerable<INodePoint> nodes);

		IEditTool GetEditTool(string id);
		void AfterEditObjects(IEditTool edittool);

		List<IDrawObject> GetHitObjects(ICanvas canvas, RectangleF selection, bool anyPoint);
		List<IDrawObject> GetHitObjects(ICanvas canvas, UnitPoint point);
		bool IsSelected(IDrawObject drawobject);
		void AddSelectedObject(IDrawObject drawobject);
		void RemoveSelectedObject(IDrawObject drawobject);
		IEnumerable<IDrawObject> SelectedObjects { get; }
		int SelectedCount { get; }
		void ClearSelectedObjects();

		ISnapPoint SnapPoint(ICanvas canvas, UnitPoint point, Type[] runningsnaptypes, Type usersnaptype);