询问者
WPF 富文本编辑器如何加入字体包等问题
问题
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我用WPF编写了一个富文本编辑器，但有两个问题不能解决，望各位前辈指点！
1.textEditor.xaml前台代码如下：
<UserControl x:Class="Shanzhizi.Controls.TextEditor.textEditor"
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:ribbon="clr-namespace:Microsoft.Windows.Controls.Ribbon;assembly=RibbonControlsLibrary"
xmlns:fluent="clr-namespace:Fluent;assembly=Fluent"
xmlns:extwpftoolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit/extended"
mc:Ignorable="d" d:DesignHeight="730" d:DesignWidth="1354"
HorizontalAlignment="Left" VerticalAlignment="Top"><UserControl.Resources>
<ResourceDictionary Source="textEditorDictionary.xaml" />
</UserControl.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="690"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<ribbon:Ribbon x:Name="ribbon" FocusManager.IsFocusScope="True" Focusable="False" ><!--IsMinimized="True"-->
<ribbon:Ribbon.Resources>
<ribbon:RibbonCommand x:Key="AppMenuCommand" LabelTitle="Application Button"
SmallImageSource="ico/Notepad.png"
LargeImageSource="ico/Notepad.png"
ToolTipTitle="WPF4 Notepad"
ToolTipDescription="Notepad Application with Ribbon Sample" />
</ribbon:Ribbon.Resources><ribbon:RibbonTab x:Name="start" Label="开始">
<ribbon:RibbonGroup>
<ribbon:RibbonGroup.Resources>
<ribbon:RibbonCommand x:Key="FontStyleCommand" LabelTitle="字体"
CanExecute="FontStyleCommand_CanExecute"
Executed="FontStyleCommand_Executed"
ToolTipTitle="FontStyle"
ToolTipDescription="FontStyle selected contents" />
</ribbon:RibbonGroup.Resources>
<ribbon:RibbonComboBox Width="80" Command="{StaticResource FontStyleCommand}" x:Name="fontstylecombobox" >
</ribbon:RibbonComboBox><ribbon:RibbonGroup HasDialogLauncher="True" x:Name="fontcolor" Command="{StaticResource FontColorCommand}">
<ribbon:RibbonGroup.Resources>
<ribbon:RibbonCommand x:Key="FontColorComboBox" LabelTitle="字体颜色"
CanExecute="FontColorComboBox_CanExecute"
Executed="FontColorComboBox_Executed"
ToolTipTitle="FontColor"
ToolTipDescription="FontColor selected contents" />
</ribbon:RibbonGroup.Resources>
<ribbon:RibbonComboBox x:Name="fontcolorcombobox" Width="80" Command="{StaticResource FontColorComboBox}"> </ribbon:RibbonComboBox>
</ribbon:RibbonGroup>
</ribbon:RibbonGroup>
</ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="pagelayout" Label="页面布置"></ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="quote" Label="引用"></ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="email" Label="邮件"></ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="vetting" Label="审阅"></ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="view" Label="视图"></ribbon:RibbonTab>
<ribbon:RibbonTab x:Name="help" Label="帮助"></ribbon:RibbonTab>
</ribbon:Ribbon>
</Grid>
<RichTextBox x:Name="richtextbox" Grid.Row="1" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Visible" Width="Auto" FontSize="20" Margin="0,0,0,6"></RichTextBox>
</Grid>
</UserControl>2.textEditor.xaml.cs 后台代码：
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;
///引入控件
///using Xceed.Wpf.Toolkit;
using Microsoft.Windows.Controls.Ribbon;
using Fluent;
using Microsoft.WindowsAPICodePack.Dialogs;
using Microsoft.WindowsAPICodePack.Shell;
using Microsoft.Win32;
using System.IO;
using System.Reflection;
using System.Xml.Linq;
using System.Resources;
using System.Windows.Resources;
using System.Threading;
using System.Windows.Controls.Primitives;
namespace Shanzhizi.Controls.TextEditor
{
/// <summary>
/// textEditorControl.xaml 的交互逻辑
/// </summary>
public partial class textEditor : UserControl
{
public textEditor()
{
InitializeComponent();
#region 加载字体颜色
fontColorComboBox();
#endregion 加载字体颜色
}#region RibbonTab
#region RibbonTab 开始
#region RibbonTab 开始 字体
private void FontStyleCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
{
}
private void FontStyleCommand_Executed(object sender, ExecutedRoutedEventArgs e)
{
}#region RibbonTab 字体 设置颜色
public void fontColorComboBox()
{
PropertyInfo[] props = typeof(Colors).GetProperties();
foreach (PropertyInfo prop in props)
{
Color clr = (Color)prop.GetValue(null, null);
bool isBlack = .222 * clr.R + .707 * clr.G + .071 * clr.B > 128;
Label label = new Label();
label.Content = prop.Name;
label.Background = new SolidColorBrush(clr);
label.Foreground = isBlack ? Brushes.Black : Brushes.White;
label.Width = 80;
label.Margin = new Thickness(0, 0, 0, 0);
label.Tag = clr;
// CanvasBackgroundListBoxColor.Items.Add(label);
fontcolorcombobox.Items.Add(label);
}
}
private void FontColorComboBox_CanExecute(object sender, CanExecuteRoutedEventArgs e)
{
if (richtextbox != null && richtextbox.Selection.Text.Length > 0)
{
e.CanExecute = true;
}
}
private void FontColorComboBox_Executed(object sender, ExecutedRoutedEventArgs e)
{
if (richtextbox != null && richtextbox.Selection.Text.Length > 0)
{
// var label = fontcolorcombobox.SelectedItem as Label;
// if (label != null)
// {
// var fontcolor = label.Background as SolidColorBrush;
//richtextbox.Selection.ApplyPropertyValue(Run.ForegroundProperty, (fontcolorcombobox.SelectedItem as Label).Background.ToString());
//}
}
}
#endregion RibbonTab 字体 设置颜色
#endregion RibbonTab 字体#endregion RibbonTab
}
}以上是我编写的代码，为方便开我将其他无关代码删除：
第一个问题：加下划线的代码，该RibbonComboBox容器是用来放置字体的容器，RibbonComboBoxItem可以放置各种文本字体，但是当有很多字体时，前台代码显得比价笨重，却相当繁琐。现在在该工程目录下有一个Fonts的文字字体文件包，其中放置上百个文字字体文件，现在我想通过后台代码将该字体Fonts文件中的字体文件自动加载到前台RibbonComboBox容器中，形成RibbonComboBoxItem子项，并显示在RibbonComboBox中，当选择RibbonComboBoxItem的字体样式时，通过后台代码可将选中的文字变为相应的字体样式。
要实现这样的功能，后台代码该如何补写？希望前辈尽可能在现有基础上补写代码。
第二个问题：黑体代码。该RibbonComboBox容器是用来放置字体颜色的容器，我已经通过后台代码在该RibbonComboBox容器放入了很多颜色，代码实现如上加黑及下划线部分，并已成功宣示。当我选择该RibbonComboBox容器的颜色是，通过后台代码可将所选的文字颜色进行相应的改变。但是当我选择颜色后程序无法运行。
我要实现文本字体颜色的变化我该如何改写代码的功能实现部分（该部分已被注解），或是该代码有问题，如果有问题我应该怎样做，希望前辈尽可能在现有基础上补写代码或修改代码。
