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[Aaronyang] 写给自己的WPF4.5 笔记15[AyArc诞生-WPF版本绚丽的环状图,Ay制作,AyWindow强势预览]

时间:2015-03-12 06:19:11      阅读:306      评论:0      收藏:0      [点我收藏+]

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 我的文章一定要做到对读者负责,否则就是失败的文章  ---------   www.ayjs.net    aaronyang技术分享

Ay.Framework.WPF-AyWindow强势预览,点击前往


1. AyArcChart效果图:DEMO下载

技术分享

2. 使用用法:

新建一个WPF项目AyArcChartDemo,并拷贝AyArcChart用户控件xaml,由于我使用的是Arc控件,所以我们还需要引入Expression的部分dll

技术分享

2.1 绝佳第一次使用

 讲解几个ayarc重要的属性

     ArcSource指定一个 ObservableCollection<AyArcModel>的数据源

     ArcThickness指定环形的宽度,默认为16。double类型

     ArcMarginLeft指定环形的间距,建议最大值为5,默认值等于1。double类型

     ArcWidth指定环形的宽度和高度,环形宽度是等于高度的,默认等于200。   double类型

     TipFontSize内部提示的字体大小  FontSize类型

   TipFontWeight内部提示的字体厚度 FontWeight类型

我们在后台创建一个数据源,指定在窗体加载时候Loaded

using Ay.Framework.WPF.Controls;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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 AyArcChartDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        List<string> co = new List<string> { "#7EDD7A", "#23E3FD", "#F16A6A", "#F98F56", "#888788" };
        List<string> names = new List<string> { "偏冷", "舒适", "偏热", "很好" };
        List<double> values = new List<double> { 47, 58, 100, 99, 10 };
        BrushConverter converter = new BrushConverter();
        ObservableCollection<AyArcModel> a = new ObservableCollection<AyArcModel>();
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            for (int i = 0; i < 4; i++)
            {
                AyArcModel m = new AyArcModel();
                m.NameValue = values[i];
                m.Color = (Brush)converter.ConvertFromString(co[i]);
                m.Name = names[i];
                a.Add(m);
            }
            arc.ArcSource = a;

        }
    }
}

前台代码(www.ayjs.net):

<Window x:Class="AyArcChartDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Ay 环形图DEMO www.ayjs.net" Height="450" Width="650"
        xmlns:ed="http://schemas.microsoft.com/expression/2010/drawing"
        xmlns:us="clr-namespace:Ay.Framework.WPF.Controls" Loaded="Window_Loaded" WindowStartupLocation="CenterScreen"
        >
    <Grid x:Name="LayoutRoot">
        <Grid Width="220" Height="220">
            <us:AyArcChart x:Name="arc" ArcThickness="18" ArcMarginLeft="1" ArcWidth="200" TipFontSize="16" TipFontWeight="Bold">

            </us:AyArcChart>
        </Grid>
    </Grid>
</Window>

效果图:

技术分享

OK到目前为止,你已经会基本使用AyArcChart了

接下来,我们来看看实时更新集合中的value值,看看AyArcChart有什么变化

我们增加一个定时器,1秒一次更新集合中对象的NameValue值

前台增加一个自动更新按钮btnUpdateAuto,添加单击事件btnUpdateAuto_Click

<Window x:Class="AyArcChartDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Ay 环形图DEMO www.ayjs.net" Height="450" Width="650"
        xmlns:ed="http://schemas.microsoft.com/expression/2010/drawing"
        xmlns:us="clr-namespace:Ay.Framework.WPF.Controls" Loaded="Window_Loaded" WindowStartupLocation="CenterScreen"
        >
    <Grid x:Name="LayoutRoot">
        <Grid Width="220" Height="220">
            <us:AyArcChart x:Name="arc" ArcThickness="18" ArcMarginLeft="1" ArcWidth="200" TipFontSize="16" TipFontWeight="Bold">

            </us:AyArcChart>
        </Grid>
        <StackPanel>
            <StackPanel Orientation="Horizontal">
                <Button Content="自动更新" HorizontalAlignment="Left"  VerticalAlignment="Top" Width="100" Height="25" Click="btnUpdateAuto_Click" x:Name="btnUpdateAuto"/>
            </StackPanel>            
        </StackPanel>
       
    </Grid>
</Window>

后台:

    private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            for (int i = 0; i < 4; i++)
            {
                AyArcModel m = new AyArcModel();
                m.NameValue = values[i];
                m.Color = (Brush)converter.ConvertFromString(co[i]);
                m.Name = names[i];
                a.Add(m);
            }
            arc.ArcSource = a;
            UpdateDataTimer = new System.Windows.Threading.DispatcherTimer();
            UpdateDataTimer.Tick += new EventHandler(UpdateDataTime);//起个Timer一直获取当前时间
            UpdateDataTimer.Interval = new TimeSpan(0, 0, 0, 1, 0);
        }

        private void UpdateDataTime(object sender, EventArgs e)
        {
            Random suiji = new Random();
            a[0].NameValue = suiji.Next(100, 1200);
            a[1].NameValue = suiji.Next(100, 1200);
            a[2].NameValue = suiji.Next(100, 1200);
            a[3].NameValue = suiji.Next(100, 1200);
        }

        private void btnUpdateAuto_Click(object sender, EventArgs e)
        {
            if (UpdateDataTimer.IsEnabled)
            {
                UpdateDataTimer.Stop();
                btnUpdateAuto.Content = "自动更新";
            }
            else
            {

                UpdateDataTimer.Start();
                btnUpdateAuto.Content = "取消自动更新";
            }
        }

现在1秒1次更新集合中4个对象的namevalue中,界面上arc自动就动画方式的调节百分比比例了。

技术分享

接下来,我们增加随机颜色,前台增加一个按钮btnColorChanged,并增加一个单击事件

         <Button Content="随机颜色" HorizontalAlignment="Left"  VerticalAlignment="Top" Width="100" Height="25" x:Name="btnColorChanged" Click="btnColorChanged_Click"/>

后台

   private void btnColorChanged_Click(object sender, RoutedEventArgs e)
        {
            Random rd = new Random();
            for (int i = 0; i < 4; i++)
            {
                //byte aa = (byte)rd.Next(256);
                byte r = (byte)rd.Next(256);
                byte g = (byte)rd.Next(256);
                byte b = (byte)rd.Next(256);
                //Color cr = Color.FromArgb(aa, r, g, b);
                Color cr = Color.FromRgb(r, g, b);
                var brush = new SolidColorBrush(cr);
                a[i].Color = brush;
            }

        }

效果图:

技术分享

OK,到目前你就心动了,你就out了,还有,我增加了环形宽度变化的动画

接下来,我们再增加几个文本框,来调整AyArcChart的属性

    <StackPanel>
            <StackPanel Orientation="Horizontal">
                <Button Content="自动更新" HorizontalAlignment="Left"  VerticalAlignment="Top" Width="100" Height="25" Click="btnUpdateAuto_Click" x:Name="btnUpdateAuto"/>
                <Button Content="随机颜色" HorizontalAlignment="Left"  VerticalAlignment="Top" Width="100" Height="25" x:Name="btnColorChanged" Click="btnColorChanged_Click"/>
            </StackPanel>

            <StackPanel Orientation="Horizontal" Height="40" >
                <Label Content="环形宽度:" VerticalAlignment="Center"/>
                <TextBox VerticalContentAlignment="Center"  Height="24"  TextWrapping="Wrap" Text="{Binding ArcThickness,ElementName=arc,Mode=TwoWay}" VerticalAlignment="Center" Width="43"/>
                <Label Content="边框间距:" VerticalAlignment="Center"/>
                <TextBox VerticalContentAlignment="Center"  Height="24"  TextWrapping="Wrap" Text="{Binding ArcMarginLeft,ElementName=arc,Mode=TwoWay}" VerticalAlignment="Center" Width="32"/>
                <Label Content="中间字号:"  VerticalAlignment="Center"/>
                <TextBox VerticalContentAlignment="Center"  Height="24"  TextWrapping="Wrap" Text="{Binding TipFontSize, ElementName=arc, Mode=TwoWay}" VerticalAlignment="Center" Width="32"/>
                <Label Content="中间粗细:" VerticalAlignment="Center"/>
                <ComboBox x:Name="cboFontWeights" Height="22" Width="83" VerticalAlignment="Center"/>
            </StackPanel>
        </StackPanel>

接下来,后台的窗体的Loaded事件时候绑定cboFontWeights的下拉值

                cboFontWeights.Items.Add(FontWeights.Black);
                cboFontWeights.Items.Add(FontWeights.Bold);
                cboFontWeights.Items.Add(FontWeights.DemiBold);
                cboFontWeights.Items.Add(FontWeights.ExtraBlack);
                cboFontWeights.Items.Add(FontWeights.ExtraBold);
                cboFontWeights.Items.Add(FontWeights.ExtraLight);
                cboFontWeights.Items.Add(FontWeights.Heavy);
                cboFontWeights.Items.Add(FontWeights.Light);
                cboFontWeights.Items.Add(FontWeights.Medium);
                cboFontWeights.Items.Add(FontWeights.Regular);
                cboFontWeights.Items.Add(FontWeights.SemiBold);
                cboFontWeights.Items.Add(FontWeights.Thin);
                cboFontWeights.Items.Add(FontWeights.UltraBlack);
                cboFontWeights.Items.Add(FontWeights.UltraBold);
                cboFontWeights.Items.Add(FontWeights.Normal);
                cboFontWeights.Items.Add(FontWeights.UltraLight);
                cboFontWeights.SelectedItem = FontWeights.Normal;

修改AyArcChart的TipFontWeight属性,绑定这个下拉框

 <us:AyArcChart x:Name="arc" ArcThickness="30" ArcMarginLeft="1" ArcWidth="200" TipFontSize="16" TipFontWeight="{Binding ElementName=cboFontWeights,Path=SelectedValue,Mode=TwoWay}">

 </us:AyArcChart>

效果图:

技术分享

OK,现在我说下,我AyArcChart诞生的过程

1.当时我借用Arc这个控件,试图调整StartAngle,EndAngle的属性,OK,指定弧度的环就出来了,我使用了ArcThickness控制了每个环的宽度

2.第一步,我是用了Grid,然后Grid中放置了4个Arc,分别调整了颜色Arc的Fill属性,厚度,重点要设置  Stretch="None" 

 <ed:Arc ArcThickness="{Binding ArcThickness,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}"
                        StartAngle="{Binding StartAngle}" x:Name="ayarc"
                        EndAngle="{Binding EndAngle}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Stretch="None" 
                        Fill="{Binding Color}"
                        >

首先我们就因此手动尝试做一个静态的ArcChart,但是如何让每个Arc都动画的方式过渡StartAngle,EndAngle值呢,以及如何计算百分比,我当然喜欢用户提供一个数据集合,例如a,b,c     那么先求和,然后每个数除以和再乘以360就得到最终的角度。ok,我设置了起始度数为10,所以第一个arc的StartAngle就是10,假如EndAngle是70,那么常规,下一个arc的起始角度就是 70,然后EndAngle假如是180,那么下一个角度就是180到370(算出来的度数+起始度数)

ok有人问我间距怎么出来了,我设置了一个变量ArcMarginLeft,我只要算出起始角度,然后    ArcMarginLeft+起始角度+算出来的起始角度,就是新的起始角度,但是结束角度应该是起始角度(不包含ArcMarginLeft的值),这是每个arc的起始角度就会少了一点,出现了间距。

       =============潇洒的版权线==========www.ayjs.net===== Aaronyang ========= AY =========== 安徽 六安 杨洋 ==========   未经允许不许转载 =========

ok,为了使用户可以提供ObservableCollection<AyArcModel>,我肯定前台要使用能有指定集合数据的ItemsControl的控件,我选择了Listbox,接着我将容器设置成了Grid

 <ListBox Name="arcContainer" Background="Transparent"  BorderThickness="0"  ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Hidden">
            <ListBox.ItemsPanel>
                <ItemsPanelTemplate>
                    <Grid Background="Transparent" x:Name="mainLayout" Width="{Binding ArcWidth,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}" Height="{Binding ArcWidth,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}"/>
                </ItemsPanelTemplate>
            </ListBox.ItemsPanel>

并绑定了宽高,这里有个技巧,我设置了背景色为transparent,因为grid后,所有的item都会叠在一个层次上面,盖在了一起,为了让里面的内容可以单击,我必须设置成transparent,接着一个技巧,使用DataTemplate指定数据类型,如此绑定后,只要是这个类型的,就会应用模板

        <ListBox.Resources>
                <DataTemplate DataType="{x:Type arc:AyArcModel}">
                    <Grid>
                        <ed:Arc ArcThickness="{Binding ArcThickness,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}"
                        StartAngle="{Binding StartAngle}" x:Name="ayarc"
                        EndAngle="{Binding EndAngle}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Stretch="None" 
                        Fill="{Binding Color}"
                        >
                            <ed:Arc.ToolTip>
                                <ToolTip>
                                    <Border Background="White" Margin="-6,-4" Padding="10">
                                        <StackPanel Orientation="Horizontal">
                                            <TextBlock Foreground="{Binding Color}" FontWeight="{Binding TipFontWeight,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}"  HorizontalAlignment="Right" FontSize="20" Text="{Binding Name}">
                                            </TextBlock>
                                            <TextBlock Grid.Column="1" FontWeight="{Binding TipFontWeight,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=UserControl}}" FontSize="20">
                                                <TextBlock.Text>
                                                    <MultiBinding StringFormat=":{0}%">
                                                        <Binding Path="Percent"></Binding>
                                                    </MultiBinding>
                                                </TextBlock.Text>
                                            </TextBlock>
                                        </StackPanel>
                                    </Border>
                                </ToolTip>
                            </ed:Arc.ToolTip>
                        </ed:Arc>

                    </Grid>
                    <DataTemplate.Triggers>
                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,
                                     AncestorType={x:Type ListBoxItem}}, Path=IsMouseOver}"   Value="True">
                            <DataTrigger.EnterActions>
                                <BeginStoryboard   Storyboard="{StaticResource ArcHoverOn}"/>
                            </DataTrigger.EnterActions>
                            <DataTrigger.ExitActions>
                                <BeginStoryboard Storyboard="{StaticResource ArcHoverOff}"/>
                            </DataTrigger.ExitActions>
                        </DataTrigger>

                    </DataTemplate.Triggers>
                </DataTemplate>
            </ListBox.Resources>

还有个技巧,如何在DataTemplate中知道item的鼠标移入了,我是用了DataTrigger的Binding,找到父节点,找到ListBoxItem,然后判断属性,接着执行透明度的过渡动画,并且提示,我是用了ToolTip,中嵌套了Border,设置margin,覆盖原来的tooltip的背景色,然后padding,给内容设置边距。这里ToolTip的颜色改变没啥好讲的。

接着如何让Item有动画效果?

我在用户控件的loaded事件中。

  private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            arcContainer.ItemsSource = ArcSource;
            arcContainerTip.ItemsSource = ArcSource;
            base.UpdateLayout();
            ExecuteDataChangedAnimation();
        }
  private void ExecuteDataChangedAnimation()
        {
            CircleEase ce = new CircleEase();
            ce.EasingMode = EasingMode.EaseOut;
            for (int i = 0; i < arcContainer.Items.Count; i++)
            {
                ListBoxItem listitem = (ListBoxItem)(arcContainer.ItemContainerGenerator.ContainerFromItem(arcContainer.Items[i]));
                AyArcModel am = ArcSource[i];
                Arc myarc = GetChild<Arc>(listitem);

                DoubleAnimationUsingKeyFrames dakeyframe1 = new DoubleAnimationUsingKeyFrames();
                Storyboard.SetTarget(dakeyframe1, myarc);
                Storyboard.SetTargetProperty(dakeyframe1, new PropertyPath("StartAngle"));
                EasingDoubleKeyFrame ed1 = new EasingDoubleKeyFrame(am.StartAnimationAngle, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(700)), ce);
                dakeyframe1.KeyFrames.Add(ed1);
                DoubleAnimationUsingKeyFrames dakeyframe = new DoubleAnimationUsingKeyFrames();
                Storyboard.SetTarget(dakeyframe, myarc);
                Storyboard.SetTargetProperty(dakeyframe, new PropertyPath("EndAngle"));
                EasingDoubleKeyFrame ed = new EasingDoubleKeyFrame(am.EndAnimationAngle, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(700)), ce);
                dakeyframe.KeyFrames.Add(ed);
                sbLoad.Children.Add(dakeyframe1);
                sbLoad.Children.Add(dakeyframe);
            }
            sbLoad.Begin();
        }

       =============潇洒的版权线==========www.ayjs.net===== Aaronyang ========= AY =========== 安徽 六安 杨洋 ==========   未经允许不许转载 =========

读取ListBox的Item,由于默认Item是拿不到的,我们使用base.UpdateLayout();先强制绘制,然后Item就可以拿到了,接着找到Arc,并绑定动画就Ok了,所以动画绑定完成后,故事版Begin一下,就会出现Arc的角度的过渡动画了。

还有个技巧,依赖属性的值变化回调函数

 public static readonly DependencyProperty ArcThicknessProperty =
            DependencyProperty.Register("ArcThickness", typeof(double), typeof(AyArcChart), new PropertyMetadata(16.00, BindArcThicknessAnimation));


        public static bool IsArcFirst = true;
        private static void BindArcThicknessAnimation(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if (!IsArcFirst)
            {
                AyArcChart aychart = (AyArcChart)d;
                double newArcThickness = (double)e.NewValue;
                aychart.StoryWhenArcThickChanged((double)e.OldValue, newArcThickness);
            }
            else
            {
                IsArcFirst = false;
            }

例如宽度变化后,触发了BindArcThicknessAnimation回调函数,这里我没有直接写故事版,应为这里的回调函数是个static的方法

所以如果在这里写动画代码,就会很累,索性我就重新写了个方法,然后将d转换成控件,然后调用d的那个新定义的方法就OK了。避免了静态方法的问题。

最后一个问题是

 BrushConverter converter = new BrushConverter();

可以通过这个自带的转换器,转换十六进制的颜色为color对象

  Color = (Brush)converter.ConvertFromString("#000000");

   

       =============潇洒的版权线==========www.ayjs.net===== Aaronyang ========= AY =========== 安徽 六安 杨洋 ==========   未经允许不许转载 =========

       -------------------小小的推荐,作者的肯定,读者的支持。推不推荐不重要,重要的是希望大家能把WPF推广出去,别让这么好的技术消失了,求求了,让我们为WPF技术做一份贡献。--------------------

 

 关于AyArcChart的控件,我已经封装到Ay.Framework.WPF类库中,Ay.Framework.WPF我已经做出了很多优秀的封装

我来秀秀我的AyWindow控件,AyPopUpWindow

技术分享

AyContextMenu

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AyMenu

技术分享

AyFontRadioButton

 技术分享

AyButton,支持图标指定,位置指定,使用的FontAwesome第三方字体

 技术分享高清图片 技术分享

支持全系统换主题,支持全系统所有打开窗口动画方式过渡背景,过渡窗体内容,支持24种过渡动画,支持窗体出场和入场动画,所有控件样式和颜色分离

技术分享

支持多屏幕拓展,一键方法绑定。可投影到指定屏幕。

支持时间自定义控件,支持多种格式,是否显示周几。

技术分享

排版支持多种控件。还有一些未完成控件,先写到这里,祝大家晚安。

[Aaronyang] 写给自己的WPF4.5 笔记15[AyArc诞生-WPF版本绚丽的环状图,Ay制作,AyWindow强势预览]

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原文地址:http://www.cnblogs.com/AaronYang/p/4277432.html

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