wpf自定义带刻度的柱状图控件
Posted chlm
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效果图：
主要代码xaml:
<UserControl x:Class="INSControls._01Conning.Steer.ConningSpeedBar"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:ec="http://schemas.microsoft.com/expression/2010/controls"
xmlns:ed="http://schemas.microsoft.com/expression/2010/drawing"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="80" Focusable="False" FocusVisualStyle="{x:Null}" Loaded="UserControl_Loaded">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="40" />
</Grid.RowDefinitions>
<Label HorizontalAlignment="Left"
VerticalAlignment="Center"
Content="{Binding Title, RelativeSource={RelativeSource AncestorType=UserControl}}"
Foreground="{Binding LabelColor, RelativeSource={RelativeSource AncestorType=UserControl} }"
FontFamily="微软雅黑"></Label>
<Label HorizontalAlignment="Left"
VerticalAlignment="Center"
Margin="0,0,0,5"
Foreground="#cc8800"
FontFamily="微软雅黑"
Content="LOG2"
Grid.Row="1" />
<Border Width="80"
HorizontalAlignment="Left"
Grid.Row="2"
Background="#24325f">
<Grid Margin="1,14,0,14"
x:Name="mainGrid">
<!--具体的值填充的柱状图形-->
<Grid x:Name="graphicGrid"
Height="10"
VerticalAlignment="Top" RenderTransformOrigin="0.5,0.5">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Path Data="M40,0 L80,40 L0,40 z"
Fill="#cc0663c2" Stretch="Fill" x:Name="path" />
<Border Grid.Row="1"
Background="#cc0663c2" />
<Grid.RenderTransform>
<RotateTransform Angle="0" x:Name="polygonRotateAngel" />
</Grid.RenderTransform>
</Grid>
<!--短刻度-->
<ec:PathListBox Background="Transparent"
x:Name="shortTicks"
ItemsSource="{Binding ShortTicks,RelativeSource={RelativeSource AncestorType=UserControl}}"
Focusable="False"
FocusVisualStyle="{x:Null}">
<ec:PathListBox.ItemTemplate>
<DataTemplate>
<Rectangle Width="1"
Height="48"
Margin="0,0,0,49"
Fill="#b5b5b5"
Focusable="False"
FocusVisualStyle="{x:Null}" />
<!--<Border Width="1"
Height="48"
Background="#b5b5b5"
UseLayoutRounding="True"
Margin="0,0,0,49" />-->
</DataTemplate>
</ec:PathListBox.ItemTemplate>
<ec:PathListBox.LayoutPaths>
<ec:LayoutPath Distribution="Even"
Orientation="OrientToPath"
SourceElement="{Binding ElementName=ShortTickPath}" >
</ec:LayoutPath>
</ec:PathListBox.LayoutPaths>
</ec:PathListBox>
<!-- 长刻度 -->
<ec:PathListBox x:Name="LongTick"
IsHitTestVisible="False"
ItemsSource="{Binding LongTicks, RelativeSource={RelativeSource AncestorType=UserControl}}"
Focusable="False"
FocusVisualStyle="{x:Null}" >
<ec:PathListBox.ItemTemplate>
<DataTemplate>
<Rectangle Width="48"
Height="3"
Margin="48,0,0,0"
Fill="White"
Focusable="False"
FocusVisualStyle="{x:Null}" />
<!--<Border Width="3"
Height="48"
Background="White"
SnapsToDevicePixels="True"
UseLayoutRounding="True"
Margin="0,0,0,49">
</Border>-->
</DataTemplate>
</ec:PathListBox.ItemTemplate>
<ec:PathListBox.LayoutPaths>
<ec:LayoutPath Distribution="Even"
Orientation="None"
SourceElement="{Binding ElementName=LongTickPath}" />
</ec:PathListBox.LayoutPaths>
</ec:PathListBox>
<!-- 刻度上显示的数字 -->
<ec:PathListBox IsHitTestVisible="False"
ItemsSource="{Binding TickMarks,RelativeSource={RelativeSource AncestorType=UserControl}}">
<ec:PathListBox.ItemTemplate>
<DataTemplate>
<TextBlock x:Name="tb" HorizontalAlignment="Left" Foreground="White"
Text="{Binding}" RenderTransformOrigin="0,0" Margin="0,50,0,0">
<TextBlock.RenderTransform>
<RotateTransform Angle="-90"/>
</TextBlock.RenderTransform>
</TextBlock>
</DataTemplate>
</ec:PathListBox.ItemTemplate>
<ec:PathListBox.LayoutPaths>
<ec:LayoutPath Distribution="Even"
Orientation="OrientToPath"
SourceElement="{Binding ElementName=NumberPath}" />
</ec:PathListBox.LayoutPaths>
</ec:PathListBox>
<Path x:Name="LongTickPath"
Data="M0,0 v1"
VerticalAlignment="Top"
HorizontalAlignment="Right"
Stretch="Fill" Fill="Red" Stroke="Red" StrokeThickness="2"
Grid.RowSpan="2"
Margin="0,0"
Focusable="False"
FocusVisualStyle="{x:Null}" />
<Path x:Name="ShortTickPath"
Data="M0,0 V1"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Stretch="Fill"
Grid.RowSpan="2"
Margin="0,0"
Focusable="False"
FocusVisualStyle="{x:Null}" />
<Path x:Name="NumberPath"
Data="M0,0 V1"
Margin="45,0,0,0"
VerticalAlignment="Top"
HorizontalAlignment="Center"
Stretch="Fill"
Grid.RowSpan="2"
Focusable="False"
FocusVisualStyle="{x:Null}" Stroke="Yellow" StrokeThickness="1"/>
</Grid>
</Border>
<StackPanel Grid.Row="3"
Orientation="Horizontal">
<TextBox Width="90"
Height="35"
IsReadOnly="True"
Foreground="{Binding TextboxColor,RelativeSource={RelativeSource AncestorType=UserControl}}"
VerticalAlignment="Center"
Text="{ Binding CurrentValue, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Control}}" />
<Label VerticalAlignment="Center"
Content="km"
Foreground="{Binding LabelColor, RelativeSource={RelativeSource AncestorType=UserControl}}"></Label>
</StackPanel>
</Grid>
</UserControl>
.cs文件：
using System;
using System.Collections.Generic;
using System.Linq;
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.Navigation;
using System.Windows.Shapes;
namespace INSControls._01Conning.Steer
{
/// <summary>
/// ConningSpeedBar.xaml 的交互逻辑
/// </summary>
public partial class ConningSpeedBar : UserControl
{
public ConningSpeedBar()
{
InitializeComponent();
}
public List<string> TickMarks
{
get { return (List<string>)GetValue(TickMarksProperty); }
set { SetValue(TickMarksProperty, value); }
}
// Using a DependencyProperty as the backing store for TickMarks. This enables animation, styling, binding, etc...
public static readonly DependencyProperty TickMarksProperty =
DependencyProperty.Register("TickMarks", typeof(List<string>), typeof(ConningSpeedBar), new PropertyMetadata(null));
public List<object> LongTicks
{
get { return (List<object>)GetValue(LongTicksProperty); }
set { SetValue(LongTicksProperty, value); }
}
// Using a DependencyProperty as the backing store for LongTicks. This enables animation, styling, binding, etc...
public static readonly DependencyProperty LongTicksProperty =
DependencyProperty.Register("LongTicks", typeof(List<object>), typeof(ConningSpeedBar), new PropertyMetadata(null));
public List<object> ShortTicks
{
get { return (List<object>)GetValue(ShortTicksProperty); }
set { SetValue(ShortTicksProperty, value); }
}
// Using a DependencyProperty as the backing store for ShortTicks. This enables animation, styling, binding, etc...
public static readonly DependencyProperty ShortTicksProperty =
DependencyProperty.Register("ShortTicks", typeof(List<object>), typeof(ConningSpeedBar), new PropertyMetadata(null));
public double CurrentValue
{
get { return (double)GetValue(CurrentValueProperty); }
set { SetValue(CurrentValueProperty, value); }
}
// Using a DependencyProperty as the backing store for CurrentValue. This enables animation, styling, binding, etc...
public static readonly DependencyProperty CurrentValueProperty =
DependencyProperty.Register("CurrentValue", typeof(double), typeof(ConningSpeedBar), new PropertyMetadata(0.0, CurrentValueChangeCallback));
private static void CurrentValueChangeCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ConningSpeedBar c = d as ConningSpeedBar;
UpdateUICurrentvalue((double)e.NewValue, c);
}
private static void UpdateUICurrentvalue(double currentValue, ConningSpeedBar c)
{
if (c.mainGrid.ActualHeight==0)
{
return;
}
if (currentValue > 0)
{
c.polygonRotateAngel.Angle = 0;
double totalValue = c.MaxValue - c.MinValue;
//计算显示图形位置
double top = (c.MaxValue - currentValue) * c.mainGrid.ActualHeight / totalValue;
//计算显示图形大小
double height = currentValue * c.mainGrid.ActualHeight / totalValue;
c.graphicGrid.Margin = new Thickness(0, top, 0, 0);
if (height > 40)
{
c.graphicGrid.Height = height;
}
else
{
c.graphicGrid.Height = c.path.Height = height;
}
}
else
{
c.polygonRotateAngel.Angle = 180;
double totalValue = c.MaxValue - c.MinValue;
//计算显示图形位置
double top = (c.MaxValue) * c.mainGrid.ActualHeight / totalValue;
//计算显示图形大小
double height = -currentValue * c.mainGrid.ActualHeight / totalValue;
c.graphicGrid.Margin = new Thickness(0, top, 0, 0);
if (height > 40)
{
c.graphicGrid.Height = height;
}
else
{
c.graphicGrid.Height = c.path.Height = height;
}
}
}
public SolidColorBrush LabelColor
{
get { return (SolidColorBrush)GetValue(LabelColorProperty); }
set { SetValue(LabelColorProperty, value); }
}
// Using a DependencyProperty as the backing store for LabelColor. This enables animation, styling, binding, etc...
public static readonly DependencyProperty LabelColorProperty =
DependencyProperty.Register("LabelColor", typeof(SolidColorBrush), typeof(ConningSpeedBar), new PropertyMetadata(Brushes.Black));
public SolidColorBrush TextboxColor
{
get { return (SolidColorBrush)GetValue(TextboxColorProperty); }
set { SetValue(TextboxColorProperty, value); }
}
// Using a DependencyProperty as the backing store for TextboxColor. This enables animation, styling, binding, etc...
public static readonly DependencyProperty TextboxColorProperty =
DependencyProperty.Register("TextboxColor", typeof(SolidColorBrush), typeof(ConningSpeedBar), new PropertyMetadata(new SolidColorBrush(Color.FromRgb(214, 214, 214))));
public string Title
{
get { return (string)GetValue(TitleProperty); }
set { SetValue(TitleProperty, value); }
}
// Using a DependencyProperty as the backing store for Title. This enables animation, styling, binding, etc...
public static readonly DependencyProperty TitleProperty =
DependencyProperty.Register("Title", typeof(string), typeof(ConningSpeedBar), new PropertyMetadata(""));
public double MaxValue
{
get { return (double)GetValue(MaxValueProperty); }
set { SetValue(MaxValueProperty, value); }
}
// Using a DependencyProperty as the backing store for MaxValue. This enables animation, styling, binding, etc...
public static readonly DependencyProperty MaxValueProperty =
DependencyProperty.Register("MaxValue", typeof(double), typeof(ConningSpeedBar), new PropertyMetadata(30d));
public double MinValue
{
get { return (double)GetValue(MinValueProperty); }
set { SetValue(MinValueProperty, value); }
}
// Using a DependencyProperty as the backing store for MinValue. This enables animation, styling, binding, etc...
public static readonly DependencyProperty MinValueProperty =
DependencyProperty.Register("MinValue", typeof(double), typeof(ConningSpeedBar), new PropertyMetadata(-10d));
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
//短刻度
List<object> shortticks = new List<object>();
for (int i = 0; i < 50; i++)
{
shortticks.Add(new object());
}
ShortTicks = shortticks;
//显示刻度文字
List<string> numbers = new List<string>();
//长刻度
List<object> longticks = new List<object>();
for (int i = 0; i < 5; i++)
{
//计算长度信息，等比例地减去间隔值
string tickInfo = (MaxValue - i * (MaxValue - MinValue) / 4).ToString();
numbers.Add(tickInfo+new string(‘&‘,i+1));
longticks.Add(new object());
}
LongTicks = longticks;
TickMarks = numbers;
UpdateUICurrentvalue(CurrentValue, this) ;
}
}
}
源码地址：
https://files.cnblogs.com/files/chlm/%E5%88%BB%E5%BA%A6%E7%BA%BF.rar
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