chartbox.cs

是用c#实现的一个有关于报表设计的程序代码

			{
				switch (childNodes[i].Name)
				{
					
					case "title":
						try
						{
							this.mTitle = Helpers.SafeXMLToText(childNodes[i].InnerText);
						}
						catch (Exception){}
						break;

					case "xLabel":
						try
						{
							this.mXLabel = Helpers.SafeXMLToText(childNodes[i].InnerText);
						}
						catch (Exception){}
						break;
					case "labelFont":
						try
						{
							this.mLabelFont = Helpers.ResolveFont( childNodes[i] );
						}
						catch (Exception){}
						break;

					case "titleFont":
						try
						{							
							this.mTitleFont = Helpers.ResolveFont( childNodes[i] );
						}
						catch (Exception){}
						break;

					case "mapAreaColor":
						try
						{							
							this.mMapAreaColor = Color.FromName(childNodes[i].InnerText) ;
						}
						catch (Exception){}
						break;

					case "showLegend":
						try
						{							
							this.mShowLegend = Convert.ToBoolean(childNodes[i].InnerText) ;
						}
						catch (Exception){}
						break;

					case "border":
						try
						{
							this.mBorderColor = Color.FromName( childNodes[i].Attributes["color"].Value );
							this.mBorderWidth = childNodes[i].Attributes["width"]==null ? 0 : Convert.ToInt32( childNodes[i].Attributes["width"].Value );
						}
						catch (Exception){}
						break;

				}

			}
		}


		/// <summary>
		/// Gets the region of the current ChartBox
		/// </summary>
		/// <returns>System.Drawing.Rectangle</returns>
		public override Rectangle GetRegion()
		{
			return mRegion;
		}


		/// <summary>
		///  Gets or sets the height of the ChartBox
		/// </summary>
		[Description("The height of the element.")]
		public override int Height
		{
			get {return mRegion.Height;}
			set
			{
				if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.None || this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.Top)
					mRegion.Height = value;
				else if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.Bottom)
				{
					mRegion.Y = mRegion.Y - value + mRegion.Height;
					mRegion.Height = value;									
				}
				else if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.Middle)
				{
					mRegion.Y = mRegion.Y - value/2 + mRegion.Height/2;
					mRegion.Height = value;									
				}
			}
		}


		/// <summary>
		///  Gets or sets the ChartBox's repeatability over multiple pages
		/// </summary>
		/// <remarks>
		/// The ChartBox's repeatability setting governs how whether it is repeated
		/// over multiple pages, only on the first page, or only on the last page.
		/// </remarks>
		[Description("This controls repeatability of the ChartBox over multiple pages.")]
		public override ICustomPaint.ObjectRepeatabilityTypes ObjectRepeatability
		{
			get
			{
				return this.objectRepeatability;
			}
			set
			{
				this.objectRepeatability = value;
			}
		}


		/// <summary>
		/// Paints the ChartBox
		/// </summary>
		/// <param name="g">The Graphics object to draw</param>
		/// <remarks>Causes the ChartBox to be painted to the screen.</remarks>
		public override void Paint(Graphics g)
		{
			if ( mChartType == ChartType.Bar)
				drawBarsDiagram(g);
			else if ( mChartType == ChartType.Pie)
				drawPieDiagram(g);
			
			if ( mBorderWidth > 0 )
				g.DrawRectangle( new Pen(mBorderColor,mBorderWidth),mRegion);
			
		}


		/// <summary>
		/// Gets/Sets whether the ChartBox is selectable in the design pane of the DaReport Designer
		/// </summary>
		/// <remarks>If set to true, then the ChartBox is not selectable in the DaReport Designer application
		/// design pane. It is still selectable in the tree view listing of objects.
		/// </remarks>
		[Description("Sets whether the object can be selected in the design pane.")]
		public override bool Selectable
		{
			get { return this.mSelectable; }
			set { this.mSelectable=value; }
		}


		/// <summary>
		///  Gets or sets the vertical alignment of the ChartBox
		/// </summary>
		[Description("Vertical alignment in the page, relative to margins. This property overrides element coordinates.")]
		public override ICustomPaint.VerticalAlignmentTypes VerticalAlignment
		{
			get {return this.verticalAlignment;}
			set 
			{
				this.verticalAlignment = value;
				switch (this.verticalAlignment)
				{
					case ICustomPaint.VerticalAlignmentTypes.Middle:
						mRegion.Y = (document.DefaultPageSettings.Bounds.Height-document.Margins.Bottom+document.Margins.Top)/2 - Height/2;
						break;

					case ICustomPaint.VerticalAlignmentTypes.Bottom:
						mRegion.Y = document.DefaultPageSettings.Bounds.Bottom - document.Margins.Bottom - Height;
						break;

					case ICustomPaint.VerticalAlignmentTypes.Top:
						mRegion.Y = document.Margins.Top;
						break;
				}
			}
		}


		/// <summary>
		///  Gets or sets the width of the ChartBox.
		/// </summary>
		[Description("The width of the element.")]
		public override int Width
		{
			get {return mRegion.Width;}
			set
			{
				if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.None || this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.Left)
					mRegion.Width = value;
				else if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.Right)
				{
					mRegion.X = mRegion.X - value + mRegion.Width;
					mRegion.Width = value;									
				}
				else if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.Center)
				{
					mRegion.X = mRegion.X - value/2 + mRegion.Width/2;
					mRegion.Width = value;									
				}
			}
		}
		

		/// <summary>
		/// The X coordinate of the left-upper corner of the element
		/// </summary>
		[Description("The X coordinate of the left-upper corner of the element.")]
		public override int X
		{
			get {return mRegion.X;}
			set 
			{
				if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.None)
					mRegion.X = value;
				else if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.Right)
				{
					mRegion.Width = mRegion.Width + mRegion.X - value;
					mRegion.X = value;					
				}
				else if (this.HorizontalAlignment == ICustomPaint.HorizontalAlignmentTypes.Center)
				{
					mRegion.Width = mRegion.Width + 2*(mRegion.X - value);
					mRegion.X = value;					
				}

			}
		}


		/// <summary>
		/// The Y coordinate of the left-upper corner of the element
		/// </summary>
		[Description("The Y coordinate of the left-upper corner of the element.")]
		public override int Y
		{
			get {return mRegion.Y;}
			set 
			{
				if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.None)
					mRegion.Y = value;
				else if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.Bottom)
				{
					mRegion.Height = mRegion.Height + mRegion.Y - value;
					mRegion.Y = value;					
				}
				else if (this.VerticalAlignment == ICustomPaint.VerticalAlignmentTypes.Middle)
				{
					mRegion.Height = mRegion.Height + 2*(mRegion.Y - value);
					mRegion.Y = value;					
				}
			}
		}

		
		#endregion

		#region Public Functions

		/// <summary>
		/// A serie is used to populate the ChartBox.
		/// </summary>
		/// <param name="serieName">Name of the serie. Displayed in the Legend</param>
		/// <param name="values">A array of Double values</param>
		/// <param name="serieColor">Color of the bar/pie</param>
		/// <remarks>
		/// You can add multiple serie to a chart. This would be useful for comparing values over certain years.
		/// Please see the "Chart Report" example, especially the City Population chart
		/// C# Sample
		/// <code language="c#">
		/// daPrintDocument.AddChartSerie("chart0","Year 1975.",new double[3]{15.9,11.4,11.2},Color.DarkGreen);
		/// </code>
		/// VB.Net Sample
		/// <code language="Visual Basic">
		/// daPrintDocument.AddChartSerie("chart0", "Year 1975.", New Double() {15.9, 11.4, 11.2}, Color.DarkGreen)
		/// </code>
		/// </remarks>
		public void AddSerie(string serieName,double[] values,Color serieColor)
		{
			mYSeries.Add(values);

			Color[] tmp = new Color[mSeriesColors.Length+1];
			Array.Copy(mSeriesColors,0,tmp,0,mSeriesColors.Length);
			tmp[mSeriesColors.Length] = serieColor;
			mSeriesColors = tmp;

			string[] tmp1 = new string[mSeriesColors.Length+1];
			Array.Copy(mSeriesNames,0,tmp1,0,mSeriesNames.Length);
			tmp1[mSeriesNames.Length] = serieName;
			mSeriesNames = tmp1;

		}

		
		#endregion

		#region Private Functions
		
		private void calculateBarsMapArea(Graphics g)
		{
			SizeF sf = g.MeasureString(mTitle,mTitleFont);
			SizeF sfLabel = g.MeasureString(mXLabel,mLabelFont);

			if (mShowLegend)
			{
				int originX = (int) (mRegion.X+mRegion.Width*0.08);
				int originY = (int) (mRegion.Y+sf.Height+10);
				int width = (int) (mRegion.Width*0.68);
				int height = (int) (mRegion.Height-sf.Height-10-2*sfLabel.Height-9);

				mMapArea = new Rectangle(originX,originY,width,height);
			
				originX = (int) (mRegion.X+mRegion.Width*0.78);
				originY = (int) (mRegion.Y+sf.Height+10);
				width = (int) (mRegion.Width*0.20);
				height = (int) (mRegion.Height-sf.Height-10-2*sfLabel.Height-9);

				mLegendArea = new Rectangle(originX,originY,width,height);
			}
			else
			{
				int originX = (int) (mRegion.X+mRegion.Width*0.1);
				int originY = (int) (mRegion.Y+sf.Height+10);
				int width = (int) (mRegion.Width*0.8);
				int height = (int) (mRegion.Height-sf.Height-10-2*sfLabel.Height-9);

				mMapArea = new Rectangle(originX,originY,width,height);
			
			}
		}

		
		private void calculatePieMapArea(Graphics g)
		{
			SizeF sf = g.MeasureString(mTitle,mTitleFont);
			SizeF sfLabel = g.MeasureString(mXLabel,mLabelFont);

			if (mShowLegend)
			{
				int originX = (int) (mRegion.X+mRegion.Width*0.02);
				int originY = (int) (mRegion.Y+sf.Height+12);
				int width = (int) (mRegion.Width*0.72);
				int height = (int) (mRegion.Height-sf.Height-20);

				mMapArea = new Rectangle(originX,originY,width,height);