mainwindow.cs

画图程序

			this.imageList.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList.ImageStream")));
			this.imageList.TransparentColor = System.Drawing.Color.Transparent;
			// 
			// MainWindow
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(744, 465);
			this.Controls.Add(this.toolBar);
			this.Controls.Add(this.btnPick);
			this.Controls.Add(this.ColorBox);
			this.Controls.Add(this.MoreColor);
			this.Controls.Add(this.statusBar);
			this.Controls.Add(this.grpTool);
			this.Controls.Add(this.Drawing);
			this.Menu = this.mainMenu;
			this.Name = "MainWindow";
			this.Text = "MyPGS";
			this.grpTool.ResumeLayout(false);
			((System.ComponentModel.ISupportInitialize)(this.statusBarImageType)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPoint)).EndInit();
			this.ColorBox.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion
		/// <summary>
		/// 主函数，程序入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new MainWindow());
		}

		#region 申明
		/// <summary>
		/// 图形存储集合等。
		/// </summary>		
		DShapeList drawingList = new DShapeList();							//图元
		DShapeList drawingListUndo = new DShapeList();						//Undo保存
		DShapeList tempPoint = new DShapeList();							//多边形、曲线临时顶点
		DShapeList pointViewList = new DShapeList();						//图元顶点框
		DShapeList notchangeList = new DShapeList();						//不移图元
		DShapeList notchangeListUndo = new DShapeList();

		NewForm newForm = new NewForm();									//字体、线宽窗口
		CircleForm newCircle = new CircleForm();							//顶点圆窗口

		ArrayList pointCollection = new ArrayList();						//多边形、曲线顶点集合
		
		NewRegion regionCollection = new NewRegion();						//图元区域集合
		NewRegion regionCollectionUndo = new NewRegion();
		PointArrayCollection pointArray = new PointArrayCollection();		//图元顶点数组集合
		PointArrayCollection pointArrayUndo = new PointArrayCollection();
		Type drawImageType = new Type();									//图元形状
		Type drawImageTypeUndo = new Type();
		
		NewRegionArray regionArrayCollection = new NewRegionArray();		//图元顶点区域集合
		NewRegionArray regionArrayCollectionUndo = new NewRegionArray();
		
		GraphicsPath regionPath;											//线、多边形区域路径		
		
		Point[] tempPointArray;												//图元顶点临时保存
		Region[] tempRegion;												//图元顶点区域临时数组
		Point[] tempMovePoint;												//拾取起始点保存

		int regionIndex = 0;												//拾取集合索引
		int pointIndex;														//拾取顶点索引
		int Distance;														//圆半径（临时）
		int diameter;														//圆直径（临时）

		bool picked = false;												//拾取与否
		bool changed = false;												//图元变换
		bool mouseMove = false;												//拾取是否移动
		bool eraser = false;

        //零时变量，常量
        private MousePoint newPoint;
        private MousePoint tempChangePoint;
        private ImageType newType;
        private GraphicsPath mousePath;
        private Region newRegion;
        private int EraserSize;
        private Image newImage;
        private string fileName = "NewFile";
        private Color newColor = Color.Black;
        private float lineWidth = 1;
        private ImageType tempType;
		#endregion

		#region 画图事件
		/// <summary>
		/// 画图事件
		/// </summary>		
		private void Drawing_Paint(object sender, System.Windows.Forms.PaintEventArgs e) 
		{
			Graphics displayGraphics = e.Graphics;
			
			switch(newType)
			{
				case ImageType.Point:
					displayGraphics.DrawRectangle(new Pen(newColor,lineWidth),new Rectangle(newPoint.StartP, new Size(1, 1)));
					break;
				case ImageType.Line:
					displayGraphics.DrawLine(new Pen(newColor,lineWidth),newPoint.StartP,newPoint.EndP);
					break;
				case ImageType.Circle:
					displayGraphics.DrawLine(new Pen(newColor),newPoint.StartP,newPoint.EndP);
					break;
				case ImageType.FillCircle:
					displayGraphics.DrawLine(new Pen(newColor),newPoint.StartP,newPoint.EndP);
					break;
				case ImageType.Rectangle:
					displayGraphics.DrawRectangle(new Pen(newColor,lineWidth),newPoint.Rect);
					break;
				case ImageType.FillRectangle:
					displayGraphics.FillRectangle(new SolidBrush(newColor),newPoint.Rect);
					break;
				case ImageType.Ellipse:
					displayGraphics.DrawEllipse(new Pen(newColor,lineWidth),newPoint.Rect);
					break;
				case ImageType.FillEllipse:
					displayGraphics.FillEllipse(new SolidBrush(newColor),newPoint.Rect);
					break;
				case ImageType.Path:
					displayGraphics.DrawPath(new Pen(newColor,lineWidth), mousePath);
					break;
				case ImageType.Eraser:
					displayGraphics.FillRegion(new SolidBrush(newColor), newRegion);
					break;
				case ImageType.Polygon:
					tempPoint.DrawList(displayGraphics);
					break;
				case ImageType.Curve:
					tempPoint.DrawList(displayGraphics);
					break;
				case ImageType.ClosedCurve:
					tempPoint.DrawList(displayGraphics);
					break;
				case ImageType.Empty:
					break;
				case ImageType.Pick:
					if(picked == true)
					{
						pointViewList.DrawList(displayGraphics);
						if(changed == true&&drawImageType[regionIndex]!=(int)ImageType.Path)
						{
							if(drawImageType[regionIndex]==(int)ImageType.Rectangle)
							{
								displayGraphics.DrawRectangle(new Pen(newColor,lineWidth), tempChangePoint.Rect);
							}
							else if(drawImageType[regionIndex]==(int)ImageType.FillRectangle)
							{
								displayGraphics.FillRectangle(new SolidBrush(newColor), tempChangePoint.Rect);
							}
							else if(drawImageType[regionIndex]==(int)ImageType.Ellipse
								||drawImageType[regionIndex]==(int)ImageType.FillEllipse)
							{
								displayGraphics.DrawRectangle(new Pen(Color.Black,1), tempChangePoint.Rect);
							}
						}
					}
					break;
			}
			drawingList.DrawList(displayGraphics);
			if(eraser == true)
				notchangeList.DrawList(displayGraphics);			
			//g.Dispose();
		}
		private void Point2Region(Point[] p)
		{
			Point[] point = new Point[p.Length];
			int j = 0;
			foreach(Point newp in p)
			{
				point[j++]=newp;
			}
			tempRegion = new Region[p.Length];
			for(int i=0;i<p.Length;i++)
			{
				point[i].Offset(-(int)(2*lineWidth),-(int)(2*lineWidth));
				Rectangle r = new Rectangle(point[i],new Size((int)(4*lineWidth),(int)(4*lineWidth)));
				Region rr = new Region(r);
				tempRegion[i] = rr;
			}
		}

		private void RegionMove(int index, int x, int y)
		{
			for(int i=0;i<pointArray[index].Length;i++)
			{
				pointArray[index][i].X = tempMovePoint[i].X + x;
				pointArray[index][i].Y = tempMovePoint[i].Y + y;
			}
		}

		private void PointView(int index)
		{
			Point tempPoint2;
			foreach(Point tempPoint in pointArray[index])
			{
				tempPoint2 = tempPoint;
				tempPoint.Offset(-(int)(2*lineWidth),-(int)(2*lineWidth));
				tempPoint2.Offset((int)(2*lineWidth),(int)(2*lineWidth));
				pointViewList.Add(new DHollowRectangle(new Point[]{tempPoint,tempPoint2},Color.DarkRed,1));
				tempPoint.Offset((int)(2*lineWidth),(int)(2*lineWidth));
			}
		}
		private void PointChange(int index)
		{
			Point tempPoint2;
			for(int i=0;i<pointArray[index].Length;i++)
			{
				tempPoint2 = pointArray[index][i];
				pointArray[index][i].Offset(-(int)(2*lineWidth),-(int)(2*lineWidth));
				tempPoint2.Offset((int)(2*lineWidth),(int)(2*lineWidth));
				pointViewList[i].pointchange(new Point[]{pointArray[index][i],tempPoint2});
				pointArray[index][i].Offset((int)(2*lineWidth),(int)(2*lineWidth));
			}
		}		

		private void RegionChange(int index)
		{
			ImageType tempType = (ImageType)drawImageType[index];
			switch(tempType)
			{
				case ImageType.Point:
					regionCollection[index] = new Region(new Rectangle(pointArray[index][0], new Size((int)lineWidth*4, (int)lineWidth*4)));
					break;
				case ImageType.Line:
					if(Math.Abs((float)(pointArray[index][0].Y-pointArray[index][1].Y)/(float)(pointArray[index][0].X-pointArray[index][1].X))<=1)
					{
						regionPath = new GraphicsPath(new Point[]{
																	 new Point(pointArray[index][0].X,pointArray[index][0].Y-10),
																	 new Point(pointArray[index][1].X,pointArray[index][1].Y-10),
																	 new Point(pointArray[index][1].X,pointArray[index][1].Y+10),
																	 new Point(pointArray[index][0].X,pointArray[index][0].Y+10),
																	 new Point(pointArray[index][0].X,pointArray[index][0].Y-10)
																 },new byte[]{
																				 (byte)PathPointType.Start,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line
																			 });
					}
					else
					{
						regionPath = new GraphicsPath(new Point[]{
																	 new Point(pointArray[index][0].X-10,pointArray[index][0].Y),
																	 new Point(pointArray[index][0].X+10,pointArray[index][0].Y),
																	 new Point(pointArray[index][1].X+10,pointArray[index][1].Y),
																	 new Point(pointArray[index][1].X-10,pointArray[index][1].Y),
																	 new Point(pointArray[index][0].X-10,pointArray[index][0].Y)
																 },new byte[]{
																				 (byte)PathPointType.Start,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line,
																				 (byte)PathPointType.Line
																			 });
					}
					regionPath.CloseFigure();
					regionCollection[index] = new Region(regionPath);
					break;
				case ImageType.Circle:
				case ImageType.FillCircle:
					Distance = (int)Math.Sqrt (Math.Pow((pointArray[index][0].X-pointArray[index][1].X),2.0)+Math.Pow((pointArray[index][0].Y-pointArray[index][1].Y),2.0));
					pointArray[index][0].Offset(-Distance,-Distance);
					diameter = Distance*2;					
					regionCollection[index] = new Region(new Rectangle(pointArray[index][0], new Size(diameter, diameter)));
					pointArray[index][0].Offset(Distance,Distance);
					break;				
				case ImageType.Polygon:
				case ImageType.Curve:
				case ImageType.ClosedCurve:
					byte[] tempByte = new byte[pointArray[index].Length];
					for(int i=0;i<pointArray[index].Length;i++)
					{
						if(i==0)
							tempByte[i] = (byte)PathPointType.Start;
						else
							tempByte[i] = (byte)PathPointType.Line;
					}
					regionPath = new GraphicsPath(pointArray[index], tempByte);
					regionPath.CloseFigure();
					regionCollection[index] = new Region(regionPath);		
					break;
				case ImageType.Text:
					break;
			}
		}
		#endregion

		#region 画图框按钮
		/// <summary>
		/// 图画图按钮框事件
		/// </summary>		
		private void AddPoint_Click(object sender, System.EventArgs e)   
		{
			this.statusBar.Panels[0].Text = "Point";
			newType = ImageType.Point;
		}

		private void AddLine_Click(object sender, System.EventArgs e)
		{
			this.statusBar.Panels[0].Text = "Line";
			newType = ImageType.Line;
		}

		private void AddCircle_Click(object sender, System.EventArgs e)
		{
			this.statusBar.Panels[0].Text = "Circle";
			newType = ImageType.Circle;
		}

		private void AddFillCircle_Click(object sender, System.EventArgs e)
		{
			this.statusBar.Panels[0].Text = "FillCircle";
			newType = ImageType.FillCircle;
		}