using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;
namespace Gissky.Geography.Legend{/// <summary>/// Legend 的摘要说明。//code by aji 2004-10-01/// </summary>public class LegendSingle : System.Windows.Forms.UserControl{ private ESRI.MapObjects2.Core.AxMap m_MapObj; System.Drawing.Bitmap bmp ; System.Drawing.Graphics g ; int iTextDrawX; private System.Windows.Forms.VScrollBar ScrollBarv; private System.Windows.Forms.HScrollBar ScrollBarh; private System.Windows.Forms.PictureBox LegendPicture; private int bmpHeight; /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.Container components = null; public LegendSingle() { // // Windows 窗体设计器支持所必需的 // InitializeComponent();
// // TOD 在 InitializeComponent 调用后添加任何构造函数代码 // }
public LegendSingle(ESRI.MapObjects2.Core.AxMap obj) { // // Windows 窗体设计器支持所必需的 // InitializeComponent();
// // TOD 在 InitializeComponent 调用后添加任何构造函数代码 // this.m_MapObj = obj; }
/// <summary> /// 清理所有正在使用的资源。 /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); }
#region Windows 窗体设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { this.LegendPicture = new System.Windows.Forms.PictureBox(); this.ScrollBarv = new System.Windows.Forms.VScrollBar(); this.ScrollBarh = new System.Windows.Forms.HScrollBar(); this.SuspendLayout(); // // LegendPicture // this.LegendPicture.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this.LegendPicture.BackColor = System.Drawing.SystemColors.HighlightText; this.LegendPicture.Location = new System.Drawing.Point(0, 0); this.LegendPicture.Name = "LegendPicture"; this.LegendPicture.Size = new System.Drawing.Size(200, 300); this.LegendPicture.TabIndex = 3; this.LegendPicture.TabStop = false; // // ScrollBarv // this.ScrollBarv.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) | System.Windows.Forms.AnchorStyles.Right))); this.ScrollBarv.Location = new System.Drawing.Point(184, 0); this.ScrollBarv.Name = "ScrollBarv"; this.ScrollBarv.Size = new System.Drawing.Size(16, 300); this.ScrollBarv.TabIndex = 1; this.ScrollBarv.Scroll += new System.Windows.Forms.ScrollEventHandler(this.ScrollBarv_Scroll); // // ScrollBarh // this.ScrollBarh.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this.ScrollBarh.Location = new System.Drawing.Point(0, 284); this.ScrollBarh.Name = "ScrollBarh"; this.ScrollBarh.Size = new System.Drawing.Size(200, 16); this.ScrollBarh.TabIndex = 2; this.ScrollBarh.Visible = false; // // LegendSingle // this.BackColor = System.Drawing.SystemColors.ControlLightLight; this.Controls.Add(this.ScrollBarh); this.Controls.Add(this.ScrollBarv); this.Controls.Add(this.LegendPicture); this.Name = "LegendSingle"; this.Size = new System.Drawing.Size(200, 300); this.Resize += new System.EventHandler(this.LegendSingle_Resize); this.ResumeLayout(false);
} #endregion public ESRI.MapObjects2.Core.AxMap AxMap { get { return this.m_MapObj; } set { this.m_MapObj = value; } } public void InitLegend() { this.iTextDrawX = 50; //文字绘制的位置 bmpHeight = 20 + 28 * this.m_MapObj.Layers.Count; //根据层的数目图片的高度 bmp= new Bitmap(500,bmpHeight); if(this.bmpHeight > this.LegendPicture.Height) this.LegendPicture.Size = new Size(this.LegendPicture.Size.Width,bmpHeight); //分配picturebox的大小 this.ScrollBarv.Maximum = bmpHeight - this.ScrollBarv.Height; //滚动条的最大值 if(this.LegendPicture.Height > this.ScrollBarv.Height ) //是否显示滚动条 this.ScrollBarv.Visible = true; else this.ScrollBarv.Visible = false; g= Graphics.FromImage(bmp); g.Clear(Color.White); DrawPicture(); } /// <summary> /// 根据mapobject空间中的地图分别绘制符号 /// </summary> private void DrawPicture() { int iCount = this.m_MapObj.Layers.Count; for(int i=0 ;i<iCount ;i++) { ESRI.MapObjects2.Core.MapLayer lyr = this.m_MapObj.Layers.Item(i) as ESRI.MapObjects2.Core.MapLayer; if(lyr != null) { tch(lyr.shapeType) { case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypePoint: case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypeMultipoint: DrawPoint(lyr,10,10 + 28 * i); break; case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypeLine: DrawLines(lyr,10,10 + 28 * i); break; case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypePolygon: case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypeEllipse: case ESRI.MapObjects2.Core.ShapeTypeConstants.moShapeTypeRectangle: DrawRectangle(lyr,10,10 + 28 * i); break; } } else { //影像 ; } } this.LegendPicture.Image = this.bmp; }
/// <summary> /// 绘制点符号的图例 /// </summary> /// <param name="lyr">图层对象</param> /// <param name="x">绘制的坐标X</param> /// <param name="y">绘制的坐标Y</param> private void DrawPoint(ESRI.MapObjects2.Core.MapLayer lyr,float x,float y) { //定义画笔画刷 0、1、2样式的边框如果有的话都为1 ，3样式无边框效果 x = x + 6; y = y + 4; System.Drawing.Pen p; System.Drawing.SolidBrush FillBrush; System.Drawing.Color fillColor = System.Drawing.ColorTranslator.FromWin32(System.Convert.ToInt32(lyr.Symbol.Color)); System.Drawing.Color outlineColor = System.Drawing.ColorTranslator.FromWin32(System.Convert.ToInt32(lyr.Symbol.OutlineColor)); int iSize =12; float XYadd = 4 ; //绘制 20 X 20 的大小 //初始化 填充画刷 FillBrush = new SolidBrush(fillColor); if(lyr.Symbol.Style == 4) {//字符集 符号需要设置相应的字体 g.DrawString(System.Convert.ToChar(lyr.Symbol.CharacterIndex).ToString(),new Font(lyr.Symbol.Font.Name,iSize),FillBrush,x ,y); } else { //初始化 画笔 if(lyr.Symbol.Outline) p= new Pen(outlineColor,1); else p = new Pen(fillColor,0); //粗为0 //根据样式绘制符号 if(lyr.Symbol.Style == 0) {//符号 “圆” g.DrawEllipse(p,x + XYadd,y,iSize,iSize); if(lyr.Symbol.Outline) g.FillEllipse(FillBrush,x + XYadd + 1 ,y + 1 ,iSize - 2,iSize -2); //有边框 else g.FillEllipse(FillBrush,x + XYadd ,y ,iSize,iSize); //无边框 } else if(lyr.Symbol.Style==1) {//符号 “正方形” g.DrawRectangle(p,x + XYadd,y,iSize,iSize); if(lyr.Symbol.Outline) g.FillRectangle(FillBrush,x + XYadd + 1,y + 1,iSize -1 ,iSize-1); else g.FillRectangle(FillBrush,x + XYadd,y,iSize,iSize); } else if(lyr.Symbol.Style == 2) {// 符号 “三角形” iSize = 14 ;//三角形要大些 g.DrawPolygon(p,new PointF[] { new PointF(x + XYadd + iSize/2 ,y + 1),new PointF( x + XYadd + 1,y+iSize),new PointF( x + XYadd + iSize-1,y + iSize)}); if(lyr.Symbol.Outline) g.FillPolygon(FillBrush,new PointF[] { new PointF(x + XYadd + iSize/2 ,y + 2),new PointF(x + XYadd + 2 ,y + iSize),new PointF(x + XYadd + iSize -2,y + iSize)}); else g.FillPolygon(FillBrush,new PointF[] { new PointF(x + XYadd + iSize/2,y + 1),new PointF(x + XYadd + 1,y + iSize),new PointF( x + XYadd + iSize-1,y + iSize)}); } else if(lyr.Symbol.Style == 3) { //符号“+” System.Drawing.Pen lineP = new Pen(fillColor,2); g.DrawLine(lineP,new PointF(x + XYadd + iSize/2 ,y),new PointF(x + XYadd + iSize/2 ,y + iSize)); g.DrawLine(lineP,new PointF(x + XYadd,y + iSize/2),new PointF(x + XYadd + iSize,y + iSize/2)); } } g.DrawString (lyr.Name, new Font("宋体",10),System.Drawing.Brushes.Black,iTextDrawX,y +2 ); GC.Collect(); } private void DrawLines(ESRI.MapObjects2.Core.MapLayer lyr,float x,float y) { //定义画笔画刷 0、1、2样式的边框如果有的话都为1 ，3样式无边框效果 x = x + 2; y = y + 5; System.Drawing.Pen p; System.Drawing.Color fillColor = System.Drawing.ColorTranslator.FromWin32(System.Convert.ToInt32(lyr.Symbol.Color)); p= new Pen(fillColor,2); tch(lyr.Symbol.Style) { case 0: break; case 1: p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash; break; case 2: p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot; break; case 3: p.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDot; break; case 4: p.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDotDot; break; default: break;
} g.DrawLine(p,new PointF(x,y+10),new PointF(x + 26,y+10)); g.DrawString (lyr.Name, new Font("宋体",10),System.Drawing.Brushes.Black,iTextDrawX,y + 2); GC.Collect(); } private void DrawRectangle(ESRI.MapObjects2.Core.MapLayer lyr,float x,float y) { x = x + 2; y = y + 5; System.Drawing.Pen p; System.Drawing.SolidBrush solidBrush; System.Drawing.Drawing2D.HatchBrush FillBrush = null; System.Drawing.Color fillColor = System.Drawing.ColorTranslator.FromWin32(System.Convert.ToInt32(lyr.Symbol.Color)); System.Drawing.Color outlineColor = System.Drawing.ColorTranslator.FromWin32(System.Convert.ToInt32(lyr.Symbol.OutlineColor)); int iWidth =26; int iHeight = 15; //设置画笔的颜色和粗细 if(lyr.Symbol.Outline) p= new Pen(outlineColor,1); else p = new Pen(fillColor,0); //粗为0 //绘制外边框矩形 g.DrawRectangle(p,x,y,iWidth,iHeight); tch(lyr.Symbol.Style) { case 0: solidBrush = new SolidBrush(fillColor); g.FillRectangle(solidBrush,x+1,y+1,iWidth - 1,iHeight -1); break; case 1: g.FillRectangle(System.Drawing.Brushes.White,x+1,y+1,iWidth - 1,iHeight -1); break; case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: case 10: tch(lyr.Symbol.Style) { case 2: //水平线填充 FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.NarrowHorizontal,fillColor,System.Drawing.Color.White); break; case 3: //竖线填充 FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Vertical,fillColor,System.Drawing.Color.White); break; case 4: //右斜45% FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.ForwardDiagonal,fillColor,System.Drawing.Color.White); break; case 5: //左斜45% FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.BackwardDiagonal,fillColor,System.Drawing.Color.White); break; case 6: //网格 FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.SmallGrid,fillColor,System.Drawing.Color.White); break; case 7: //对角十字叉 FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.OutlinedDiamond,fillColor,System.Drawing.Color.White); break; case 8: // FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent70,fillColor,System.Drawing.Color.White); break; case 9: //9跟10差别不大，一下子.net里也找不到好发填充方式 FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent50,fillColor,System.Drawing.Color.White); break; case 10: // FillBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent50,fillColor,System.Drawing.Color.White); break; default: break; } g.FillRectangle(FillBrush,x+1,y+1,iWidth - 1,iHeight -1); break; default: break; } //绘制图层名称 g.DrawString (lyr.Name, new Font("宋体",10),System.Drawing.Brushes.Black,iTextDrawX,y+2); GC.Collect(); }
private void ScrollBarv_Scroll(object sender, System.Windows.Forms.ScrollEventArgs e) {//如果图例图片太高超出了空间的高度则显示滚动条 this.LegendPicture.Location = new Point(this.LegendPicture.Location.X,- e.NewValue); }
private void LegendSingle_Resize(object sender, System.EventArgs e) { //控件调整大小的时候，重新计算并设置滚动条的状态 if(this.ScrollBarv.Height >= this.bmpHeight) { this.ScrollBarv.Visible = false; this.LegendPicture.Location = new Point(this.LegendPicture.Location.X,0); } else { this.ScrollBarv.Visible = true; this.ScrollBarv.Maximum = bmpHeight - this.ScrollBarv.Height; //滚动条的最大值 this.ScrollBarv.Minimum = 0; this.ScrollBarv.Value = 0; this.LegendPicture.Location = new Point(this.LegendPicture.Location.X,- this.ScrollBarv.Value ); } }}}
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