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using System;
using System.Windows;
using System.Windows.Input;
namespace WpfEditor
{
public partial class FindDialog : Window
{
private TextEditorControl _textEditor;
public FindDialog(TextEditorControl textEditor)
{
InitializeComponent();
_textEditor = textEditor;
// 设置焦点到搜索文本框
SearchTextBox.Focus();
// 添加键盘事件处理
SearchTextBox.KeyDown += SearchTextBox_KeyDown;
// 如果编辑器有选中文本，将其作为默认搜索内容
string selectedText = _textEditor.GetSelectedText();
if (!string.IsNullOrEmpty(selectedText))
{
SearchTextBox.Text = selectedText;
SearchTextBox.SelectAll();
}
}
private void SearchTextBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
if (Keyboard.Modifiers == ModifierKeys.Shift)
{
FindPrevious();
}
else
{
FindNext();
}
e.Handled = true;
}
else if (e.Key == Key.Escape)
{
Close();
e.Handled = true;
}
}
private void FindNextButton_Click(object sender, RoutedEventArgs e)
{
FindNext();
}
private void FindPreviousButton_Click(object sender, RoutedEventArgs e)
{
FindPrevious();
}
private void CloseButton_Click(object sender, RoutedEventArgs e)
{
Close();
}
private void FindNext()
{
string searchText = SearchTextBox.Text;
if (string.IsNullOrEmpty(searchText))
return;
bool matchCase = MatchCaseCheckBox.IsChecked == true;
bool wholeWord = WholeWordCheckBox.IsChecked == true;
bool found = _textEditor.FindNext(searchText, matchCase, wholeWord);
if (!found)
{
MessageBox.Show("未找到指定的文本。", "查找", MessageBoxButton.OK, MessageBoxImage.Information);
}
}
private void FindPrevious()
{
string searchText = SearchTextBox.Text;
if (string.IsNullOrEmpty(searchText))
return;
bool matchCase = MatchCaseCheckBox.IsChecked == true;
bool wholeWord = WholeWordCheckBox.IsChecked == true;
bool found = _textEditor.FindPrevious(searchText, matchCase, wholeWord);
if (!found)
{
MessageBox.Show("未找到指定的文本。", "查找", MessageBoxButton.OK, MessageBoxImage.Information);
}
}
protected override void OnClosed(EventArgs e)
{
base.OnClosed(e);
_textEditor.ClearFindHighlight();
}
}
} |