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用C#创建PDA应用程序的柱形图控件

luyued 发布于 2011-03-17 15:32   浏览 N 次  
编译自定义控件的运行时版本

1. 在解决方案资源管理器中,右击 Class1.cs 并单击"重命名"。

2. 重命名文件 PDAChartControlControl.cs。

注意 如果没有打开解决方案资源管理器,请单击"视图"菜单上的"解决方案资源管理器"。

用下列代码替换 PDAChartControlControl.cs 中的代码:

//*****************************************************************************
// PDAChartControlControl
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
#if NETCFDESIGNTIME
[assembly: System.CF.Design.RuntimeAssemblyAttribute("PDAChartControl, Version=1.10.0.0, _
Culture=neutral, PublicKeyToken=null")]
namespace PDAChartControl
{
///
/// Summary description for UserControl1.
///

public class PDAChart : System.Windows.Forms.Control
{
public System.Windows.Forms.HScrollBar hScrollBar1;

///
/// Required designer variable.
///


// Delegate declaration.
// public delegate void EventHandler(string text,Color BackColor,int Height);
//
// //声明事件的委托:
// //public delegate void MyEventHandler(string text,Color BackColor,int Height);
// //定义一个公共事件成员
// public event EventHandler AddCube;
// protected virtual void OnAddCube(EventArgs e)
// {
//
// }
//
private PDAChartControl.MyGraph objGraph=new MyGraph();
private Point mBeginPoint=new Point(0,0) ;

private System.ComponentModel.Container components = null;

public PDAChart()
{
InitializeComponent();
}

public enum ChartTypeEnum { PillarChart, CakeChart ,BreakLinkChart};

#region Windows 属性定义
private bool mhScrollBarVisible=true;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取滚动条是否可见")]
#endif
public bool hScrollBarVisible
{
get
{
return mhScrollBarVisible;
}
set
{
mhScrollBarVisible =value;
this.Invalidate();
}
}
private ChartTypeEnum mChartType=ChartTypeEnum.PillarChart;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取图形类型")]
#endif
public ChartTypeEnum ChartType
{
get
{
return mChartType;
}
set
{
mChartType =value;
this.Invalidate();
}
}

private int mPicHeight=20;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取饼图高")]
#endif
public int PicHeight
{
get
{
return mPicHeight;
}
set
{
mPicHeight =value;
this.Invalidate();
}
}

private Font mTitleFont =new Font("Arial", 9, FontStyle.Regular);

#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("设置/读取文本字体")]
#endif
public Font TitleFont
{
get
{
return mTitleFont;
}
set
{
mTitleFont=value;
this.Invalidate();
}
}

private Font mTextFont =new Font("Arial", 8, FontStyle.Regular);
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("设置/读取文本字体")]
#endif
public Font TextFont
{
get
{
return mTextFont;
}
set
{
mTextFont=value;
this.Invalidate();
}
}
private static DataTable mDataTable=new DataTable() ;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("设置/读取数据表")]
#endif
public DataTable dataTable
{
get
{
return mDataTable;
}
set
{
mDataTable=(DataTable)value;
this.Invalidate();
}
}
private string mShowColumnName;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("设置/读取显示列")]
#endif
public string ShowColumnName
{
get
{
return mShowColumnName;
}
set
{
mShowColumnName=value;
this.Invalidate();
}
}
private string mDataColumnName;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("设置/读取数据列")]
#endif
public string DataColumnName
{
get
{
return mDataColumnName;
}
set
{
mDataColumnName=value;
this.Invalidate();
}
}

private string mTitle="统计图";
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute("图表")]
[System.ComponentModel.Description("设置/读取标题")]
#endif
public string Title
{
get
{
return mTitle;
}
set
{
mTitle=value;
this.Invalidate();
}
}


private ArrayList mCubeData;
#if !NETCFDESIGNTIME
//The actual Data used to draw the line on the graph
public ICollection CubeData
{
get
{
return mCubeData;
}
set
{
mCubeData = new ArrayList(value);
Rectangle rcClient = this.ClientRectangle;
Rectangle rcGraphClient = new Rectangle(rcClient.X + 21, rcClient.Y + 5, rcClient.Width - 21, rcClient.Height - 21);
this.Invalidate(rcGraphClient);
}
}
#endif

private Color mBackColor=System.Drawing.SystemColors.ControlLight;

#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取背景颜色")]
#endif
public override Color BackColor
{
get
{
return mBackColor;
}
set
{
mBackColor =value;
this.Invalidate();
}
}

private Color mAxesXColor=System.Drawing.SystemColors.HighlightText;

#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取X轴颜色")]
#endif
public Color AxesXColor
{
get
{
return mAxesXColor;
}
set
{
mAxesXColor =value;
this.Invalidate();
}
}

private Color mAxesYColor=System.Drawing.SystemColors.Info;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.DefaultValueAttribute(0)]
[System.ComponentModel.Description("设置/读取Y轴颜色")]
#endif
public Color AxesYColor
{
get
{
return mAxesYColor;
}
set
{
mAxesYColor =value;
this.Invalidate();
}
}

private int mLenght = 4;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.DefaultValueAttribute(5)]
[System.ComponentModel.Description("立体长")]
#endif
//The lower Y bound of the PDAChart
public int Lenght
{
get
{
return mLenght;
}
set
{
mLenght = value;
this.Invalidate();
}
}
private int mMaxYValue ;//图表Y轴最大值
private int mMaxXValue ;//图表X轴最大值

private Color mGridLineColor=System.Drawing.Color.Cyan;
#if NETCFDESIGNTIME
[System.ComponentModel.Category("PDAChart")]
[System.ComponentModel.Description("网格线的颜色.")]
#endif
//The color of the line of the PDAChart.
public Color GridLineColor
{
get
{
return mGridLineColor;
}
set
{
mGridLineColor =value;
this.Invalidate();
}
}
private bool mShowXText = true;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.Category("Chart")]
[System.ComponentModel.DefaultValueAttribute(true)]
[System.ComponentModel.Description("是否显示X轴的文本")]
#endif
// If true, shows the Y-Values on the left of the PDAChart
public bool IsShowXText
{
get
{
return mShowXText;
}
set
{
mShowXText = value;
this.Invalidate();
}
}
private bool mShowYText = true;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.Category("Chart")]
[System.ComponentModel.DefaultValueAttribute(true)]
[System.ComponentModel.Description("是否显示Y轴的数字")]
#endif
// If true, shows the Y-Values on the left of the PDAChart
public bool IsShowYText
{
get
{
return mShowYText;
}
set
{
mShowYText = value;
this.Invalidate();
}
}
private bool mShowXScale = true;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.Category("Chart")]
[System.ComponentModel.DefaultValueAttribute(true)]
[System.ComponentModel.Description("是否显示X轴的刻度.")]
#endif
// If true, shows the X-Values on the bottom of the PDAChart
public bool IsShowXScale
{
get
{
return mShowXScale;
}
set
{
mShowXScale = value;
this.Invalidate();
}
}

private bool mShowYScale = true;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.Category("Chart")]
[System.ComponentModel.DefaultValueAttribute(true)]
[System.ComponentModel.Description("是否显示Y轴的刻度")]
#endif
// If true, shows the Y-Values on the left of the PDAChart
public bool IsShowYScale
{
get
{
return mShowYScale;
}
set
{
mShowYScale = value;
this.Invalidate();
}
}

private bool mShowGrid = true;
#if NETCFDESIGNTIME
// These design time attributes affect appearance of this property in the property grid.
[System.ComponentModel.Category("Chart")]
[System.ComponentModel.DefaultValueAttribute(false)]
[System.ComponentModel.Description("是否显示网格线")]
#endif
// If true, shows horiztonal grid lines on the PDAChart.
public bool IsShowGrid
{
get
{
return mShowGrid;
}
set
{
mShowGrid = value;
this.Invalidate();
}
}
#endregion
///
/// Clean up any resources being used.
///

protected override void Dispose( bool disposing )
{
if( disposing )
{
if( components != null )
components.Dispose();
}
base.Dispose( disposing );
}

#region Component Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the Code Editor.
///

private void InitializeComponent()
{
this.Paint += new System.Windows.Forms.PaintEventHandler(this.OnPaint);
this.hScrollBar1 = new System.Windows.Forms.HScrollBar();
this.hScrollBar1.Location = new System.Drawing.Point(1, 100);
this.hScrollBar1.Maximum = 1;
this.hScrollBar1.LargeChange = 1;
this.hScrollBar1.Size = new System.Drawing.Size(100, 16);
this.hScrollBar1.ValueChanged += new System.EventHandler(this.hScrollBar1_ValueChanged);

this.Controls.Add(this.hScrollBar1);
}
#endregion
//
// private ArrayList mCudeData;

protected override void OnResize(EventArgs e)
{
//this.Refresh();
}

Graphics mGraphics;
Pen mBlackPen=new Pen(Color.Black);
//偏差
int TopHeightWarp=16; //顶偏差(文本高)

int LeftWidthWarp=0; //左偏差(最大数据文本宽)
int UnderHeightWarp=10; //底偏差(底文本高)
int BetweenLineHeight=10;//水平线的高
int LineCount=10;//水平线数

// //This Paint function uses routines common to both platforms.

int ClientHeight;
int mWidth;
int YHeight;
Rectangle rcClient;
System.Drawing.Region Region1;
public void OnPaint(object sender, System.Windows.Forms.PaintEventArgs e)
{
//base.Paint(null,e);
mGraphics=e.Graphics;
//读取数据
this.rcClient = this.ClientRectangle;
Region1=new Region ( this.rcClient);
Region1=Region1.Clone();

ClientHeight=rcClient.Height;
objGraph.mGraphics=e.Graphics; //mGraphics.MeasureString//

//计算最大的x轴、y轴坐标
CountMaxScaleXScaleY();
UnderHeightWarp=(int)objGraph.mGraphics.MeasureString("文本",this.mTextFont).Height+5;
UnderHeightWarp+=this.hScrollBar1.Height;
//作图的范围区(开始点、长、宽、高)
mBeginPoint.X =this.ClientRectangle.X+LeftWidthWarp ;
mBeginPoint.Y =this.ClientRectangle.Y+rcClient.Height-UnderHeightWarp ;

//写标题
DrawTitle(rcClient);
int Width=rcClient.Width-this.mLenght-LeftWidthWarp;
mWidth=Width;
int Height=rcClient.Height-this.mLenght-TopHeightWarp-UnderHeightWarp;
this.YHeight= Height;
int Lenght=this.mLenght;

//设置流动条
// this.hScrollBar1.Location = new System.Drawing.Point(0, rcClient.Y+rcClient.Height);
InitPage();
if (this.hScrollBarVisible)
{
this.hScrollBar1.Left=0;
this.hScrollBar1.Top=rcClient.Height-this.hScrollBar1.Height ;
this.hScrollBar1.Maximum=this.PageCount-1;

if(rcClient.Width<246)
this.hScrollBar1.Width= rcClient.Width;
else
this.hScrollBar1.Width=246;
}
else
{
this.hScrollBar1.Left=0;
this.hScrollBar1.Top=0 ;
}
//从此分别画图
if (this.mMaxYValue>10)
{
//水平网络线
this.BetweenLineHeight=(int)objGraph.mGraphics.MeasureString("文本",this.mTextFont).Height;
this.LineCount=Height/BetweenLineHeight;
}
else
{
this.BetweenLineHeight=Height/10;
//线数应该是能整
this.LineCount=10;
}
//画与它父相同背景颜色的区域,以隐藏角边
Color ParentBackColor=Color.Brown;

objGraph.DrawRectangle( ParentBackColor,new Point(0,0),rcClient.Width,rcClient.Height);
e.Graphics.DrawRectangle(new Pen(ParentBackColor), rcClient);

objGraph.DrawPDAChart(this.mGridLineColor, this.mAxesXColor,this.mAxesYColor,_
this.mBackColor,mBeginPoint,Lenght,Width,Height, this.mShowXScale,this.mShowYScale);
//画线和左文本(内部左下点)
Point p=mBeginPoint;
p.X+=this.mLenght;
p.Y-=this.mLenght;
DrawGridLineAndTexts(p,Width);
//mBeginPoint

//画矩形与写文本
//CreateCubes(mBeginPoint,Width,rcClient.Height);
//mBeginPoint.X+=10;
CreatePageCubes(mBeginPoint,Width,ClientHeight);

DrawTitle(rcClient);
}
}

//以左下坐标p,颜色color,长Lenght,宽Width,高Height,x轴文本textX,画立体图
public void AddOneCube(string textX,Point p,Color color,int Lenght,int Width, int Height)
{
try
{
objGraph.DrawCube (color,p,Lenght,Width,Height);
//文本
int txtWidth=(int)objGraph.mGraphics.MeasureString(textX,mTextFont).Width;
int txtHeight=(int)objGraph.mGraphics.MeasureString(textX,mTextFont).Height;

int x=(p.X+Width/2)-txtWidth/2;
int y=p.Y+txtHeight/2;
this.objGraph.DrawText(textX,Color.Black,this.mTextFont,x,y-5);
}
catch(Exception ex)
{
string str=ex.Message;
}}

//一页立方体图形个数
int OnePageCubeCount=10;
int CurrentPage=0;//当前页
int PageCount=0;//多少页
//水平轴的相对值
int XScale;
//Y轴的相对值
double YScale=0.2;

Color[] color={Color.Red,Color.Blue,Color.Green,Color.Yellow,Color.YellowGreen,Color.Magenta,_
Color.Cyan,Color.Coral,Color.SlateGray,Color.Pink,Color.Crimson,Color.DodgerBlue,Color.Chartreuse };

//计算页
private void InitPage()
{
if(this.OnePageCubeCount==0) return;
if (mDataTable.Rows.Count this.OnePageCubeCount=mDataTable.Rows.Count ;
if(this.OnePageCubeCount==0) return;
PageCount=mDataTable.Rows.Count/this.OnePageCubeCount;
//水平轴的相对值
XScale=Width/this.OnePageCubeCount ;
//Y轴的相对值
if(this.mMaxYValue<=0) return;
{
if(this.mMaxYValue==0) return;
this.YScale=double.Parse(this.YHeight.ToString())/double.Parse( this.mMaxYValue.ToString() ) ;//System.Math.
//this.YScale=double.Parse(this.YScale.ToString())/double.Parse(this.LineCount.ToString() );
}
// this.YScale=double.Parse(System.Convert.ToString(1))/double.Parse( this.mMaxYValue.ToString() ) ;//System.Math.
}

private void hScrollBar1_ValueChanged(object sender, System.EventArgs e)
{
//OnPaint(object sender, System.Windows.Forms.PaintEventArgs e)
//清画出的图
this.CurrentPage=hScrollBar1.Value;
// if (mGraphics.Clip==null)
// {
mGraphics=this.CreateGraphics ();
this.objGraph.mGraphics=mGraphics;
// }
//mGraphics.Clip=this.Region1;
//画矩形与写文本,最多一屏
//mGraphics.Clear(this.mBackColor) ;
//mGraphics.ResetClip();
//CreatePageCubes(mBeginPoint,Width,ClientHeight);
System.Windows.Forms.PaintEventArgs e1=new PaintEventArgs( mGraphics,this.rcClient);
OnPaint(null,e1);
}
public void NextPage()
{
this.objGraph.mGraphics=this.CreateGraphics ();
this.CurrentPage++;
Bitmap bm = new Bitmap(10,10);
Graphics g = Graphics.FromImage(bm);

if (this.CurrentPage>this.PageCount)
this.CurrentPage--;
//画矩形与写文本,最多一屏
//mGraphics.Clear(Color.Red) ;
//mGraphics.ResetClip();
CreatePageCubes(mBeginPoint,Width,ClientHeight);
}

//在左下顶点,宽Width,高Height建立立方体
private void CreatePageCubes(Point BeginP ,int Width,int Height)
{
if(mDataTable.Rows.Count==0) return;
int Between=10;
switch(this.OnePageCubeCount)
{
case 1:
Between= mWidth/2;
break;
case 2:
Between= mWidth/3;
break;
case 3:
Between= mWidth/4;
break;
case 4:
Between= mWidth/5;
break;
case 5:
Between= mWidth/6;
break;
case 6:
Between= mWidth/7;
break;
case 7:
Between= mWidth/8-1;
break;
case 8:
Between= mWidth/9-2;
break;
case 9:
Between=mWidth/9-5;
break;
case 10:
Between=mWidth/10-5;
break;
}
int RowIndex=this.OnePageCubeCount*this.CurrentPage;
Point p=BeginP;//dr.
p.X-=8;
for ( int i=0;i{
//p.X= this.XScale*(i+1)+10;
p.X+=Between+this.mLenght;
double CubeHeight=this.YScale*System.Convert.ToInt32(mDataTable.Rows[RowIndex][this.mDataColumnName]);
//if ((p.X >= 0) && (p.X <= Width) && (p.Y >= 0) && (p.Y <= Height))
//{
string text=mDataTable.Rows[RowIndex][this.mShowColumnName].ToString() ;
string Data=mDataTable.Rows[RowIndex][this.mDataColumnName].ToString() ;
int ColorIndex=RowIndex;
if (ColorIndex>=color.Length)
ColorIndex=color.Length-1;
if (this.mShowXText==false) text=" ";
AddOneCube(text,p,color[i],this.mLenght,this.mLenght+4,System.Convert.ToInt32(CubeHeight));
//}
RowIndex++;
}
}

//在左下顶点,宽Width,高Height建立立方体
private void CreateCubes(Point BeginP ,int Width,int Height)
{
if(mDataTable.Rows.Count==0) return;
//水平轴的相对值
int XScale=Width/mDataTable.Rows.Count ;
//Y轴的相对值
if(this.mMaxYValue<=0) return;
int YScale=Height/(this.mMaxYValue*this.LineCount) ;

int RowIndex=0;
Color[] color={Color.Red,Color.Blue,Color.Green,Color.Yellow,Color.YellowGreen,Color.Magenta,_
Color.Cyan,Color.Coral,Color.SlateGray,Color.Pink,Color.Crimson,Color.DodgerBlue,Color.Chartreuse };

foreach(DataRow dr in mDataTable.Rows)
{
RowIndex+=1;
Point p=BeginP;//dr.
p.X= XScale*RowIndex+10;
int CubeHeight=YScale*System.Convert.ToInt32(dr[this.mDataColumnName]);
if ((p.X >= 0) && (p.X <= Width) && (p.Y >= 0) && (p.Y <= Height))
{
string text=dr[this.mShowColumnName].ToString() ;
string Data=dr[this.mDataColumnName].ToString() ;
int ColorIndex=RowIndex;
if (ColorIndex>=color.Length)
ColorIndex=color.Length-1;
if (this.mShowXText==false) text=" ";
AddOneCube(text,p,color[C
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