/// <summary>
/// 处理打开文档或插入文档
/// </summary>
/// <param name="IsInsertFile"></param>
public void LoadOrInsertFile(bool IsInsertFile, string FileName)
{
try
{
if (File.Exists(FileName) == false)
{
return;
}
string FileExt = System.IO.Path.GetExtension(FileName).ToUpper(); //文件扩展名
TextRange range = null;
if (IsInsertFile)
{
range = _rtf.Selection;
}
else
{
range = new TextRange(_rtf.Document.ContentStart, _rtf.Document.ContentEnd);
//用户输入了些东西
if (MySuperEditorHelper.IsPrintableString(range.Text))
{
MessageBoxResult ret = MessageBox.Show("保存旧文档吗?", "保存文档", MessageBoxButton.YesNo);
if (ret == MessageBoxResult.Yes)
{
SaveToFile(true);
}
}
CurFileName = FileName;
}
//打开文件
using (FileStream fs = new FileStream(FileName, FileMode.Open))
{
switch (FileExt)
{
case ".XAMLPACKAGE":
range.Load(fs, DataFormats.XamlPackage);
break;
case ".XAML":
range.Load(fs, DataFormats.Xaml);
break;
case ".RTF":
range.Load(fs, DataFormats.Rtf);
break;
case ".TXT":
default:
//由于TextRange对象不能直接装入Unicode字符，所以，采用其他方法进行处理
range.Text = MySuperEditorHelper.LoadStringFromTextFile(fs);
break;
}
}
}
catch (Exception ex)
{
throw ex;
}
}
private void SynchronzieFontFamilies()
{
Object obj = null;
//显示当前字体
if (RichTextBox1.Selection.IsEmpty) //如果当前没选中文字
{
TextRange nearestChar = rtfManager.GetPrevChar(RichTextBox1.CaretPosition);
if ((nearestChar != null) && MySuperEditorHelper.IsTwoByteChineseChar(nearestChar.Text))
//是汉字,获取离光标最近字符的字体
obj = nearestChar.GetPropertyValue(TextElement.FontFamilyProperty);
else
//不是汉字,或者文档为空直接调用RichTextBox默认功能实现
obj = RichTextBox1.Selection.GetPropertyValue(TextElement.FontFamilyProperty);
}
else //如果当前选中文字
obj = RichTextBox1.Selection.GetPropertyValue(TextElement.FontFamilyProperty);
if (obj is FontFamily) //设置字体下拉框选项为当前字体
{
String FontName = MySuperEditorHelper.GetLocaliteFontName((FontFamily)obj);
//此句居然会引发TabControl的SelectionChanged事件？真是诡异！
cboFontFamilies.Text = FontName;
}
}
private void OnPaste(object sender, ExecutedRoutedEventArgs e)
{
//提取剪贴板数据
IDataObject dataObject = Clipboard.GetDataObject();
//检查数据是否为设备无关位图
if (dataObject != null && dataObject.GetData(DataFormats.Dib) != null)
{
//将Dib转换为Bitmap
Stream imageData = Clipboard.GetDataObject().GetData(DataFormats.Dib) as Stream;
System.Drawing.Bitmap bmp = MySuperEditorHelper.CreateBitmapFromDib(imageData);
//创建WPF的Image控件，并将其插入到当前光标位置
System.Windows.Controls.Image imageControl = new System.Windows.Controls.Image();
imageControl.Source = MySuperEditorHelper.BitmapToImageSource(bmp);
imageControl.Width = bmp.Width;
imageControl.Height = bmp.Height;
//如果当前有选中的，则先清空它，之后再插入图片，这样一来，就实现了“替换”的效果
if (String.IsNullOrEmpty(RichTextBox1.Selection.Text) == false)
{
RichTextBox1.Selection.Text = "";
}
InlineUIContainer container = new InlineUIContainer(imageControl, RichTextBox1.Selection.Start);
}
else
{
RichTextBox1.Paste();
}
if (Clipboard.ContainsData(DataFormats.Bitmap))
{
//如果粘贴的是图片，则设置为左对齐（因为默认情况下，粘贴图片是居中对齐）
EditingCommands.AlignLeft.Execute(null, RichTextBox1);
TextRange selection = RichTextBox1.Selection;
//取消选中状态，光标移动到最后
selection.Select(selection.End, selection.End);
}
}
/// <summary>
/// 新建文档
/// </summary>
public void NewDocument()
{
try
{
TextRange range = new TextRange(_rtf.Document.ContentStart, _rtf.Document.ContentEnd);
if (MySuperEditorHelper.IsPrintableString(range.Text))
{
MessageBoxResult ret = MessageBox.Show("保存旧文档吗?", "保存文档", MessageBoxButton.YesNo);
if (ret == MessageBoxResult.Yes)
{
SaveToFile(true);
}
}
range.Text = "";
CurFileName = "无标题";
}
catch (Exception ex)
{
throw ex;
}
}
private void SynchronzieFontFamilies()
{
Object obj = null;
//显示当前字体
if (RichTextBox1.Selection.IsEmpty) //如果当前没选中文字
{
TextRange nearestChar = rtfManager.GetPrevChar(RichTextBox1.CaretPosition);
if ((nearestChar != null) && MySuperEditorHelper.IsTwoByteChineseChar(nearestChar.Text))
{
//是汉字,获取离光标最近字符的字体
obj = nearestChar.GetPropertyValue(TextElement.FontFamilyProperty);
}
else
{
//不是汉字,或者文档为空直接调用RichTextBox默认功能实现
obj = RichTextBox1.Selection.GetPropertyValue(TextElement.FontFamilyProperty);
}
}
else //如果当前选中文字
{
obj = RichTextBox1.Selection.GetPropertyValue(TextElement.FontFamilyProperty);
}
}
/// <summary>
/// 使用一个列表框显示系统字体
/// </summary>
/// <param name="lst"></param>
private void LoadSystemFontsToListBox(ComboBox cbo)
{
foreach (FontFamily family in Fonts.SystemFontFamilies)
cbo.Items.Add(MySuperEditorHelper.GetLocaliteFontName(family));
}