摘要：目前有很多图表插件可以在开发中供开发者选择，包括Silverlight本身就内置了很多图表插件，但是多数图表插件并没有提供地理区域图表功能。例如想看一下北京十八个区县人口分布情况，当然你可以使用饼图、柱状图等，但是如果可以直接看到类似于地图的分布状况不是更加直观吗？
主要内容：
1.图表功能
2.图表设计
3.使用效果
一、图表功能
图表有以下功能特点
- 区域可定制化，今天是北京市明天可能还需要用到上海市，因此这个区域不能是硬编码的而是可以自由定制的。
- 使用灵活，插件使用者可以自用设置图表的标题、区域颜色、区域的数据显示、区域提示等。
- 支持显示图例显示和鼠标互动，提高用户体验。
- 支持保存、打印，丰富图表功能。
二、图表设计
要实现这样一个图表插件，主要解决的问题还是区域制定化的问题，这里通过XML配置的方式实现，将每个图表作为一个Chart，每个Chart中有多个Area区域。Area中主要需要对区域路径和位置的描述（也就相当于要在Silverlight中通过读取配置文件进行绘制Path，不过不用担心，这些都可以通过Express Design来实现）然后程序中通过动态创建Path来实现动态绘制。另外图片的保存功能在前面的文章"Silverlight之摄像头麦克风使用"已经说过。而在Silverlight 4中也已经提供了原生的打印功能，因此要实现这两个功能也相当容易。另外还需要用到Silverlight Toolkit中的ContextMenu将其添加到右键菜单中。下面是实现的主要类图：
ChartManager主要负责图表管理，这其中包括图表Chart和区域Area的管理，通过它可以将XML配置中的图表、区域转换为对应实体。
Chart和Area为对应的实体类，通过其各自对应的Access进行访问。
ChartImage主要是实现保存功能，而Legend是对图例的抽象。
Printer和XmlHelper是两个辅助类，用户打印和xml操作。
其中几个主要类的源代码
ChartManager
View Code
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.Generic;
using System.Xml.Linq;
using CmjCharts.Util;
using CmjCharts.Entity;
using CmjCharts.Config;
namespace CmjCharts.Charts
{
public class ChartManager
{
private static object _objLock = new object();
private static ChartManager _areaManager = null;
private CmjCharts.Entity.Chart _chart = null;
private List<Area> _areas = null;
private XmlHelper _xml = null;
private ChartManager()
{
_xml = new XmlHelper(ChartConstant.ConfigFilePath);
InitChart();
InitAreas();
}
public static ChartManager Instance()
{
lock (_objLock)
{
if (_areaManager == null)
{
_areaManager = new ChartManager();
}
}
return _areaManager;
}
private void InitChart()
{
_chart = new Chart();
_chart.Title = _xml.GetAttibuteValue("Chart", "Title");
}
private void InitAreas()
{
_areas = new List<Area>();
Area ar = null;
foreach (XElement elmt in _xml.Query("Area"))
{
ar = new Area();
ar.Name = _xml.GetAttibuteValue(elmt, "Name");
ar.Data = _xml.GetAttibuteValue(elmt, "Data");
ar.Width = _xml.GetAttibuteValue(elmt, "Width");
ar.Height = _xml.GetAttibuteValue(elmt, "Height");
ar.HorizontalAlignment = _xml.GetAttibuteValue(elmt, "HorizontalAlignment");
ar.VerticalAlignment = _xml.GetAttibuteValue(elmt, "VerticalAlignment");
ar.Stretch = _xml.GetAttibuteValue(elmt, "Stretch");
ar.Stroke = _xml.GetAttibuteValue(elmt, "Stroke");
ar.Fill = _xml.GetAttibuteValue(elmt, "Fill");
ar.Margin = _xml.GetAttibuteValue(elmt, "Margin");
ar.Title = _xml.GetAttibuteValue(elmt, "Title");
ar.ShowTitle = bool.Parse(_xml.GetAttibuteValue(elmt,"ShowTitle"));
ar.TitleMargin = _xml.GetAttibuteValue(elmt, "TitleMargin");
ar.Tip = _xml.GetAttibuteValue(elmt, "Tip");
ar.DataExplain = _xml.GetAttibuteValue(elmt, "DataExplain");
ar.ShowDataExplain = bool.Parse(_xml.GetAttibuteValue(elmt, "ShowDataExplain"));
_areas.Add(ar);
}
}
public List<Area> Areas
{
get
{
return _areas;
}
}
public Chart Chart
{
get
{
return _chart;
}
}
}
}
Chart
View Code
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.ComponentModel;
namespace CmjCharts.Entity
{
public class Chart:INotifyPropertyChanged
{
private string _title = "Cmj Charts";
public string Title
{
get
{
return _title;
}
set
{
_title = value;
OnPropertyChange(new PropertyChangedEventArgs("Title"));
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChange(PropertyChangedEventArgs e)
{
if (PropertyChanged != null)
{
PropertyChanged(this, e);
}
}
}
}
Area
View Code
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.ComponentModel;
namespace CmjCharts.Entity
{
public class Area : INotifyPropertyChanged
{
private string _fill = "Yellow";
private string _tip = "";
private string _title = "";
private string _dataExplain = "";
public Area()
{
}
public string Name
{
get;
set;
}
public string Data
{
get;
set;
}
public string Fill
{
get
{
return _fill;
}
set
{
_fill = value;
OnPropertyChange(new PropertyChangedEventArgs("Fill"));
}
}
public string HorizontalAlignment
{
get;
set;
}
public string VerticalAlignment
{
get;
set;
}
public string Stretch
{
get;
set;
}
public string Stroke
{
get;
set;
}
public string Width
{
get;
set;
}
public string Height
{
get;
set;
}
public string Margin
{
get;
set;
}
public string Title
{
get
{
return _title;
}
set
{
_title = value;
OnPropertyChange(new PropertyChangedEventArgs("Title"));
}
}
public bool ShowTitle
{
get;
set;
}
public string TitleMargin
{
get;
set;
}
public string Tip
{
get
{
return _tip;
}
set
{
_tip = value ;
OnPropertyChange(new PropertyChangedEventArgs("Tip"));
}
}
public string DataExplain
{
get
{
return _dataExplain;
}
set
{
_dataExplain = value;
OnPropertyChange(new PropertyChangedEventArgs("DataExplain"));
}
}
public bool ShowDataExplain
{
get;
set;
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChange(PropertyChangedEventArgs e)
{
if (PropertyChanged != null)
{
PropertyChanged(this, e);
}
}
}
}
ChartAccess
View Code
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Browser;
using CmjCharts.Entity;
using CmjCharts.Charts;
namespace CmjCharts.EntityAccess
{
[ScriptableType]
public class ChartAccess
{
public Chart Chart
{
get
{
return ChartManager.Instance().Chart;
}
}
[ScriptableMember]
public void SetTitle(string title)
{
this.Chart.Title = title;
}
}
}
AreaAccess
View Code
using System;
using System.Collections.Generic;
using System.Xml.Linq;
using System.Windows.Browser;
using CmjCharts.Entity;
using CmjCharts.Config;
using CmjCharts.Util;
using CmjCharts.Charts;
namespace CmjCharts.EntityAccess
{
[ScriptableType]
public class AreaAccess
{
public AreaAccess()
{
}
public List<Area> Areas
{
get
{
return ChartManager.Instance().Areas;
}
}
public Area GetAreaByName(string name)
{
Area returnArea = null;
foreach (Area ar in this.Areas)
{
if (ar.Name == name)
{
returnArea = ar;
break;
}
}
return returnArea;
}
[ScriptableMember]
public void SetBackgrondColor(string name, string color)
{
GetAreaByName(name).Fill=color;
}
[ScriptableMember]
public void SetTitle(string areaName,string title)
{
GetAreaByName(areaName).Title = title;
}
[ScriptableMember]
public void SetDataExplain(string areaName, string explain)
{
GetAreaByName(areaName).DataExplain = explain;
}
public void SetBackgrondColor(Area area,string color)
{
area.Fill = color;
}
public void SetTipInfo(string name, string tipInfo)
{
GetAreaByName(name).Tip = tipInfo;
}
}
}
ChartTipService
View Code
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Browser;
using CmjCharts.Entity;
namespace CmjCharts.Charts
{
public class ChartTipService
{
[ScriptableMember]
public void SetTip(string areaName, string tipInfo)
{
Path path = ((Application.Current.RootVisual) as FrameworkElement).FindName(areaName) as Path;
ToolTipService.SetToolTip(path, tipInfo);
}
}
}
Printer
View Code
using System;
using System.Windows;
using System.Windows.Printing;
namespace CmjCharts.Util
{
public class Printer
{
PrintDocument _doc = null;
private UIElement _uiElement = null;
private string _documentName = "CmjCharts";
public Printer()
{
_doc=new PrintDocument();
}
public Printer(UIElement uiElement,string documentName):this()
{
this._uiElement = uiElement;
this._documentName = documentName;
}
public void Print(UIElement uiEelement,string documentName)
{
_doc.PrintPage+=(sender,e)=>{
e.PageVisual=uiEelement;
};
_doc.Print(documentName);
}
public void Print()
{
if (this._uiElement != null)
{
Print(this._uiElement, this._documentName);
}
}
}
}
XmlHelper
View Code
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Xml;
using System.Linq;
using System.Xml.Linq;
namespace CmjCharts.Util
{
public class XmlHelper
{
private XDocument _xdoc = null;
public XmlHelper(string filePath)
{
_xdoc = XDocument.Load(filePath);
}
public void Add(string nodeName,string attributeName, string attributeValue)
{
XElement elmt = new XElement(nodeName);
elmt.SetAttributeValue(attributeName, attributeValue);
_xdoc.Root.Add(elmt);
}
public void Delete(string nodeName,string attributeName, string attributeValue)
{
var elmt=from p in _xdoc.Descendants(nodeName)
where p.Attribute(attributeName).Value==attributeValue
select p;
elmt.Remove();
}
public void Update(string nodeName, string attributeName, string attributeValue)
{
IEnumerable<XElement> elmts = from p in _xdoc.Descendants(nodeName)
where p.Attribute(attributeName).Value == attributeValue
select p;
XElement elmt = elmts.FirstOrDefault();
elmt.SetAttributeValue(attributeName, attributeValue);
}
public IEnumerable<XElement> Query(string nodeName, string attributeName, string attributeValue)
{
IEnumerable<XElement> elmts = from p in _xdoc.Descendants(nodeName)
where p.Attribute(attributeName).Value == attributeValue
select p;
return elmts;
}
public IEnumerable<XElement> Query(string nodeName)
{
IEnumerable<XElement> elmts = from p in _xdoc.Descendants(nodeName)
select p;
return elmts;
}
public XElement QueryFirst(string nodeName)
{
IEnumerable<XElement> elmts = from p in _xdoc.Descendants(nodeName)
select p;
return elmts.FirstOrDefault();
}
public string GetAttibuteValue(XElement element, string attributeName)
{
return element.Attribute(attributeName).Value;
}
public string GetAttibuteValue(string elementName, string attributeName)
{
return GetAttibuteValue(QueryFirst(elementName), attributeName);
}
}
}
再看一下配置文件，需要注意的是文件中路径、长、宽、间隔等是可以通过Expression Design中绘制然后导出XAML粘贴过来的。
View Code
<?xml version="1.0" encoding="utf-8" ?>
<Chart Title="Cmj Charts">
<Area Name="HuaiRou" Title="怀柔" ShowTitle="true" TitleMargin="440,110,0,0" Tip="怀柔区" DataExplain="4%" ShowDataExplain="true" Width="164" Height="298.54" Margin="364.157,10.4598,0,0" Stretch="Fill" Stroke="White" Fill="#FFFFFF00" VerticalAlignment="Top" HorizontalAlignment="Left" Data="F1 M 408.158,110.833L 404.158,107.5L 402.824,101.5C 402.824,101.5 394.824,102.166 395.491,99.4998C 396.157,96.8331 393.491,91.4998 393.491,91.4998L 378.157,75.4998L 373.491,70.8331C 373.491,70.8331 372.824,54.1664 379.491,54.8331C 386.157,55.4998 384.824,53.4998 384.824,53.4998C 384.824,53.4998 392.824,55.4998 394.824,62.1664C 396.824,68.8331 406.824,68.1664 406.824,68.1664L 413.491,69.4998C 413.491,69.4998 402.824,48.8331 405.491,48.1664L 409.491,37.4998L 425.491,40.8331L 432.824,34.8331L 441.491,34.8331L 450.824,42.1664L 451.491,28.8331L 455.491,23.4998L 450.824,21.4998C 450.824,21.4998 450.158,12.1664 456.157,10.8331C 462.157,9.49982 468.157,12.1664 468.157,12.1664C 468.157,12.1664 468.824,12.8331 476.157,16.1664C 483.491,19.4998 478.824,25.4998 478.824,25.4998L 475.491,32.1664L 475.491,40.8331L 473.491,44.8331L 483.491,58.1664L 485.491,66.1664C 485.491,66.1664 496.824,68.8331 496.157,72.8331C 495.491,76.8331 503.491,80.1664 506.157,87.4998C 508.824,94.8331 521.491,92.8331 521.491,92.8331L 528.157,105.5C 528.157,105.5 518.158,108.166 512.824,120.166L 499.491,122.833L 500.824,138.166L 494.824,140.833C 494.824,140.833 478.824,144.833 479.491,151.5C 480.157,158.166 476.824,166.166 476.824,166.166L 478.824,176.833L 480.157,186.833L 470.824,195.5C 470.824,195.5 476.158,196.166 478.157,201.5C 480.157,206.833 476.157,219.5 476.157,219.5L 478.157,229.5C 478.157,229.5 489.491,244.833 481.491,263.5L 486.157,272.166L 495.491,278.833L 492.157,287.5L 486.824,291.5C 486.824,291.5 467.491,313.5 470.157,308.166C 472.824,302.833 468.824,300.166 468.824,300.166L 452.157,302.833C 452.157,302.833 438.158,290.166 437.491,294.166C 436.824,298.166 423.491,300.166 423.491,300.166L 420.824,295.5L 408.157,287.5L 408.157,278.833L 395.491,273.5L 384.824,263.5C 384.824,263.5 376.824,262.166 376.157,259.5C 375.491,256.833 366.158,252.833 365.491,256.833C 364.824,260.833 364.157,249.5 364.157,249.5L 368.157,244.833C 368.157,244.833 362.824,234.833 368.824,230.166C 374.824,225.5 370.157,225.5 370.157,225.5L 366.157,222.833L 373.491,216.833L 384.824,216.166L 386.157,221.5L 392.824,224.833L 408.824,221.5L 423.491,222.166L 428.157,215.5L 424.824,208.166L 418.157,204.166L 412.824,204.166L 417.491,195.5L 423.491,195.5L 432.824,172.166L 438.824,169.5L 442.824,163.5L 435.491,162.833L 427.491,156.833L 427.491,152.166L 419.491,151.5L 426.157,126.166L 413.491,114.833L 408.158,110.833 Z "/>
<Area Name="YanQing" Title="延庆" ShowTitle="true" TitleMargin="330,184,0,0" Tip="延庆区" DataExplain="2%" ShowDataExplain="true" Width="235.4" Height="201.125" Margin="205.657,104.208,0,0" Stretch="Fill" Stroke="White" Fill="#FFFF0064" VerticalAlignment="Top" HorizontalAlignment="Left" Data="F1 M 53,62.5L 59,65L 64.5,65L 72.5,67.5C 72.5,67.5 76.5,78.5 75.5,74.5C 74.5,70.4999 83.5,66 83.5,66C 83.5,66 87.5,66 89.5,67.5C 91.5,68.9999 95.5,60 95.5,60L 99,60.5C 99,60.5 100.5,58 101.5,56.5C 102,55.75 104,52.0625 107,49.5C 110,46.9375 114,45.5 114,45.5L 119,45.5L 120.5,35.5L 126,24.5L 132.5,19.5C 132.5,19.5 133.5,18.5 138,7.49998C 142.5,-3.50002 148,1.49998 149,-2.28882e-005C 150,-1.50005 158,11 158,11L 169,6.99998C 169,6.99998 173,10.5 180.5,7.49998C 188,4.49995 195.5,6.99998 195.5,6.99998L 203,7.49995C 203,7.49995 208.5,11.4999 210.5,11.9999C 212.5,12.5 217.5,18.5 217.5,18.5C 217.5,18.5 216,21.9999 218,22C 220,22 218,30.5 218,30.5L 215.5,38L 212,46L 221.5,49C 221.5,49 221.5,52.4999 224.5,55C 227.5,57.5 233.5,58.5 233.5,58.5C 233.5,58.5 237,62.9999 234.5,63.5C 232,64 227,66 227,66L 224,75.5L 220,82.5L 217.5,88.5L 211.5,90.5C 211.5,90.5 207,96.4999 207.5,98.5C 208,100.5 211,102.5 211,102.5L 215.5,103C 215.5,103 219,103 219.5,106.5C 220,110 219.5,114.5 219.5,114.5L 216.5,117.5L 205,116.5L 190.5,120L 184.5,119.5L 180,115.5L 177,112L 167.5,112L 160,118.5C 160,118.5 163.5,123 163,125.5C 162.5,128 159,130.5 159,130.5L 161.5,140L 158.5,145.5L 158.5,151.5L 160,155C 160,155 156,158 154.5,156C 153,154 148,154.5 148,154.5L 144.5,157.5L 140.5,155.5L 133.5,156.5L 130.5,158.5L 127.5,158L 123,160.5C 123,160.5 119.5,159 119.5,162.5C 119.5,166 117.5,170 117.5,170L 117.5,178.5L 113.5,180.5L 111.5,176L 105.5,173L 101,173L 94,171.5L 93,177C 93,177 90,178.5 88,177.5C 86,176.5 79.5,167 79.5,167L 74,170.5L 71,175L 74,181L 75,184.5C 75,184.5 73,190 73.5,192.5C 74,195 70,195.5 70,195.5L 67.5,200L 62,201L 55.5,201L 55,197L 57,189.5C 57,189.5 53,184 55,181.5C 57,179 50,175.5 50,175.5L 50,168.5L 33.5,165.5L 15.5,138.5L 8.5,136.5L 8.5,123L 5,116L 2,116L 0,112L 0,104.5C 0,104.5 4.00002,91.9999 6,92.5C 8,93 15.5,84 15.5,84L 22,84.5C 22,84.5 23,74.4999 25.5,75.5C 28,76.5001 35.5,68.9999 43,72.5L 45.5,67.5L 53,62.5 Z "/>
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<Area Name="FengTai" Title="丰台" ShowTitle="false" TitleMargin="330,184,0,0" Tip="丰台区" DataExplain="3%" ShowDataExplain="false" Width="114" Height="51.8333" Margin="299.938,429.982,0,0" Stretch="Fill" StrokeLineJoin="Round" Stroke="#FFFFFFFF" Fill="#FFFF0064" VerticalAlignment="Top" HorizontalAlignment="Left" Data="F1 M 70.1667,45.5L 71,44.1667L 70.8333,38.6667L 72,37.3333L 74.1667,36.8333L 74.5,35.8333L 78.1667,36.1667L 80.3333,38.1667L 82.8333,39.8333L 85.5,42.5L 87.1667,43L 87.5,44.6667L 89.8333,45L 90.3333,43.6667L 92.5,43.6667L 95.5,42.6667L 97.6667,41.5L 101.167,41.6667C 101.167,41.6667 99.8333,40.1667 100.833,40.3333C 101.833,40.5 103.833,40.5 103.833,40.5L 103.167,38.6667L 100.333,35L 94.8333,34.6667L 91.6667,36L 89,36.3333L 87.5,35L 87.5,33L 91,30.5C 91,30.5 91.3333,29.5 92,29.5C 92.6667,29.5 94.5,29.5 94.5,29.5L 94.8333,30.5L 96.8333,30.5L 98,28.6667L 98.5,26.1667L 104.333,25.8333L 104.5,24.5L 106.5,24.6667L 107,22.1667L 108.5,21L 112.5,20.8333L 113.333,19L 113.5,15.3333L 112,13.6667L 110,13.8333L 107.833,13.5L 107.5,11.3333L 106.5,9.5L 106.333,8.33334L 105.333,10.1667L 102.667,10.8333L 94.5,11.3333L 93.6667,12.3333L 91.6667,12.6667L 80,12L 78,11.5L 77.5,7.16666L 76,5.5L 73.6667,4.83334L 73.1667,2.5L 71.5,2.33334L 71,1.33334L 62.6667,2L 57.8333,1.16666L 55,2L 54.1667,0.5L 52,0.833344L 51.5,2L 50.6667,3L 47.1667,3.5L 46.6667,9.66666L 41.3333,9.66666L 39.6667,8.83334L 38.6667,7.5L 31.6667,8.16666L 29.5,5.5L 28.6667,4.33334L 27.1667,4.16666L 26.8333,5.33334L 21.8333,5.83334L 20.3333,6.66666L 17.8333,7.33334L 15.6667,8.16666L 14.1667,9L 11.1667,9.5L 9.83334,10.8333L 9.33334,12L 6,12.1667L 6,11L 2.5,11.1667L 2.5,10.1667L 1,10.1667L 0.5,12.6667C 0.5,12.6667 1.50003,11.6667 1.83334,13C 2.16666,14.3333 1.83334,20.8333 1.83334,20.8333L 0.666656,21.3333L 0.833344,23.8333L 1.16666,24.8333C 1.16666,24.8333 2.66669,23.6667 3.33334,24.8333C 4,26 4.5,27.8333 4.5,27.8333L 5.66666,29.8333L 5.66666,40.8333L 5.66666,42.3333L 9.5,42.3333L 10.1667,43.5L 12,44L 16.5,44.3333L 16.1667,49.1667L 19,50.3333L 20.3333,51.3333L 25.1667,50.8333L 29.1667,47.8333L 33.8333,45.1667L 35.8333,42.6667L 39,42.8333L 39.8333,40L 41.3333,37.6667L 41.3333,34.5L 43.1667,32.5L 44.1667,29.8333L 47,31.1667L 49.5,32.8333L 52.1667,34L 53.1667,37.1667L 53.6667,39.3333L 63.3333,38.1667L 64.6667,40.3333L 65.6667,43.3333L 66.5,45.8333L 70.1667,45.5 Z "/>
</Chart>
Main页面XAML
View Code
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"
x:Class="CmjCharts.MainPage"
Width="1000" Height="600" Loaded="UserControl_Loaded">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="50" />
<RowDefinition Height="*" />
<RowDefinition Height="10" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="10" />
<ColumnDefinition Width="200" />
</Grid.ColumnDefinitions>
<TextBlock x:Name="txtblkTitle" Grid.ColumnSpan="3" Grid.Column="0" Grid.Row="0" Text="Cmj Charts" TextAlignment="Center" VerticalAlignment="Center" FontSize="18" FontFamily="Portable User Interface" />
<Canvas x:Name="cvsMain" Grid.Column="0" Grid.Row="1"></Canvas>
<Grid x:Name="grdLegend" Grid.Column="2" Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
</Grid>
</Grid>
</UserControl>
Main页面CS
View Code
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Browser;
using CmjCharts.Charts;
using CmjCharts.Entity;
using CmjCharts.EntityAccess;
using CmjCharts.Config;
namespace CmjCharts
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
}
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
Init();
}
private void Init()
{
ChartContextMenuAccess.ChartElement = this.LayoutRoot;
CreateContextMenu();
ExposeInterface();
GenerateChart();
}
private void GenerateChart()
{
ChartAccess chartAccess = new ChartAccess();
Chart chart = chartAccess.Chart;
this.txtblkTitle.SetBinding(TextBlock.TextProperty, new Binding("Title") { Source = chart, Mode = BindingMode.OneWay });
AreaAccess areaAccess = new AreaAccess();
int row=0;
foreach (Area ar in areaAccess.Areas)
{
Path pt = new Path();
pt.Name = ar.Name;
Binding dataBinding = new Binding("Data") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.DataProperty, dataBinding);
Binding marginBinding = new Binding("Margin") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.MarginProperty, marginBinding);
Binding withBinding = new Binding("Width") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.WidthProperty, withBinding);
Binding heightBinding = new Binding("Height") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.HeightProperty, heightBinding);
Binding horizontalBinding = new Binding("HorizontalAlignment") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.HorizontalAlignmentProperty, horizontalBinding);
Binding verticalBinding = new Binding("VerticalAlignment") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.VerticalAlignmentProperty, verticalBinding);
Binding stretchBinding = new Binding("Stretch") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.StretchProperty, stretchBinding);
Binding strokeBinding = new Binding("Stroke") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.StrokeProperty, strokeBinding);
Binding fillBinding = new Binding("Fill") { Source = ar, Mode = BindingMode.OneWay };
pt.SetBinding(Path.FillProperty, fillBinding);
ToolTipService.SetToolTip(pt, ar.Tip);
string[] mgs = ar.TitleMargin.Split(',');
StackPanel stkpnAreaFlag = new StackPanel();
stkpnAreaFlag.Margin = new Thickness(double.Parse(mgs[0]), double.Parse(mgs[1]), double.Parse(mgs[2]), double.Parse(mgs[3]));
TextBlock txtblkAreaTitle = new TextBlock();
txtblkAreaTitle.TextAlignment = TextAlignment.Center;
Binding titleBinding = new Binding("Title") { Source = ar, Mode = BindingMode.OneWay };
txtblkAreaTitle.SetBinding(TextBlock.TextProperty, titleBinding);
stkpnAreaFlag.Children.Add(txtblkAreaTitle);
if (!ar.ShowTitle)
{
txtblkAreaTitle.Visibility = Visibility.Collapsed;
}
TextBlock txtblkDataExplain = new TextBlock();
txtblkDataExplain.TextAlignment = TextAlignment.Center;
Binding dataExplainBinding = new Binding("DataExplain") { Source = ar, Mode = BindingMode.OneWay };
txtblkDataExplain.SetBinding(TextBlock.TextProperty, dataExplainBinding);
stkpnAreaFlag.Children.Add(txtblkDataExplain);
if (!ar.ShowDataExplain)
{
txtblkDataExplain.Visibility = Visibility.Collapsed;
}
grdLegend.RowDefinitions.Add(new RowDefinition());
Rectangle rctg = new Rectangle();
rctg.Width = ChartConstant.LegendWidth;
rctg.Height = ChartConstant.LegendHeight;
rctg.SetBinding(Rectangle.StretchProperty, stretchBinding);
rctg.SetBinding(Rectangle.StrokeProperty, strokeBinding);
rctg.SetBinding(Rectangle.FillProperty, fillBinding);
Grid.SetRow(rctg, row);
Grid.SetColumn(rctg, 0);
grdLegend.Children.Add(rctg);
TextBlock txtblkLegendTitle = new TextBlock();
txtblkLegendTitle.VerticalAlignment = VerticalAlignment.Center;
txtblkLegendTitle.SetBinding(TextBlock.TextProperty, titleBinding);
Grid.SetRow(txtblkLegendTitle, row);
Grid.SetColumn(txtblkLegendTitle, 1);
grdLegend.Children.Add(txtblkLegendTitle);
pt.Tag = txtblkAreaTitle;
pt.Cursor = Cursors.Hand;
pt.MouseEnter += new MouseEventHandler(pt_MouseEnter);
pt.MouseLeave += new MouseEventHandler(pt_MouseLeave);
this.cvsMain.Children.Add(pt);
this.cvsMain.Children.Add(stkpnAreaFlag);
++row;
}
for(int i=row;i<10;++i)
{
grdLegend.RowDefinitions.Add(new RowDefinition());
}
}
private void ExposeInterface()
{
HtmlPage.RegisterCreateableType("ChartAccess", typeof(ChartAccess));
HtmlPage.RegisterCreateableType("AreaAccess", typeof(AreaAccess));
ChartTipService tipService = new ChartTipService();
HtmlPage.RegisterScriptableObject("ChartTipService", tipService);
}
private void CreateContextMenu()
{
ContextMenu contextMenu = new ContextMenu();
foreach (ChartContextMenu menu in ChartContextMenuAccess.GetContextMenus())
{
MenuItem menuItem=null;
menuItem = new MenuItem();
menuItem.Name = menu.Name;
menuItem.Header = menu.Header;
menuItem.Click += new RoutedEventHandler(menuItem_Click);
contextMenu.Items.Add(menuItem);
}
ContextMenuService.SetContextMenu(this.LayoutRoot, contextMenu);
}
void menuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem menu = sender as MenuItem;
ChartContextMenuAccess.MenuClick(menu.Name);
}
/// <summary>
/// 光标移出此区域时
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void pt_MouseLeave(object sender, MouseEventArgs e)
{
ScaleTransform st = new ScaleTransform();
st.ScaleX = 1;
st.ScaleY = 1;
Path pt = sender as Path;
pt.RenderTransform = st;
TextBlock txtblk = pt.Tag as TextBlock;
txtblk.RenderTransform=st;
}
/// <summary>
/// 光标移动到此区域时
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void pt_MouseEnter(object sender, MouseEventArgs e)
{
ScaleTransform st = new ScaleTransform();
st.ScaleX = ChartConstant.AreaZoomOffset;
st.ScaleY = ChartConstant.AreaZoomOffset;
Path pt = sender as Path;
pt.RenderTransform = st;
TextBlock txtblk = pt.Tag as TextBlock;
txtblk.RenderTransform = st;
}
}
}
三、使用效果
最后看一下使用过截图吧
图表展示
鼠标移动上之后的效果（区域放大并显示提示信息）
设置图表标题
设置区域颜色
设置区域标题
设置数据
设置提示信息
最后附上插件源代码
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本作品采用知识共享署名 2.5 中国大陆许可协议进行许可，欢迎转载，演绎或用于商业目的。但转载请注明来自崔江涛（KenshinCui），并包含相关链接。 |