public async void ZamenaPic(string textNaZamenu1, StorageFile file)
{
if (file != null)
{
using (IRandomAccessStream fileStream = await file.OpenAsync(Windows.Storage.FileAccessMode.Read))
{
string textToFind = textNaZamenu1;
if (textToFind != null)
{
RichEditBox richEditBox = new RichEditBox();
richEditBox.Document.SetText(Windows.UI.Text.TextSetOptions.FormatRtf, stringRich);
ITextRange searchRange = richEditBox.Document.GetRange(0, 0);
if (searchRange.FindText(textToFind, TextConstants.MaxUnitCount, FindOptions.Word) > 0)
{
await new MessageDialog(searchRange.EndPosition.ToString()).ShowAsync();
// searchRange.SetText(TextSetOptions.FormatRtf, zamena);
BitmapImage image = new BitmapImage();
await image.SetSourceAsync(fileStream);
searchRange.InsertImage(100, 100, 0, VerticalCharacterAlignment.Baseline, "img", fileStream);
}
string ss = String.Empty;
richEditBox.TextDocument.GetText(Windows.UI.Text.TextGetOptions.FormatRtf, out ss);
stringRich = ss;
}
}
}
}
private void FindAndHighlightText(string textToFind)
{
ClearAllHighlightedWords();
ITextRange searchRange = editor.Document.GetRange(0, TextConstants.MaxUnitCount);
searchRange.Move(0, 0);
bool textFound = true;
do
{
if (searchRange.FindText(textToFind, TextConstants.MaxUnitCount, FindOptions.None) < 1)
{
textFound = false;
}
else
{
ITextRange ss = searchRange.GetClone();
m_highlightedWords.Add(searchRange.GetClone());
ITextCharacterFormat charFormatting = searchRange.CharacterFormat;
charFormatting.BackgroundColor = Colors.Yellow;
searchRange.CharacterFormat = charFormatting;
}
} while (textFound);
}
private void FindBoxHighlightMatches()
{
FindBoxRemoveHighlights();
string textToFind = findBox.Text;
if (textToFind != null)
{
ITextRange searchRange = editor.Document.GetRange(0, 0);
while (searchRange.FindText(textToFind, TextConstants.MaxUnitCount, FindOptions.None) > 0)
{
searchRange.CharacterFormat.BackgroundColor = Colors.Yellow;
}
}
}
private void FindBoxHighlightMatches()
{
FindBoxRemoveHighlights();
Color highlightBackgroundColor = (Color)App.Current.Resources["SystemColorHighlightColor"];
Color highlightForegroundColor = (Color)App.Current.Resources["SystemColorHighlightTextColor"];
string textToFind = findBox.Text;
if (textToFind != null)
{
ITextRange searchRange = editor.Document.GetRange(0, 0);
while (searchRange.FindText(textToFind, TextConstants.MaxUnitCount, FindOptions.None) > 0)
{
searchRange.CharacterFormat.BackgroundColor = highlightBackgroundColor;
searchRange.CharacterFormat.ForegroundColor = highlightForegroundColor;
}
}
}
private void HighlightSearchBoxMatches()
{
ClearHighlights();
Color highlightBackgroundColor = Colors.Orange;
string?textToFind = SearchTextBox.Text;
if (textToFind != null)
{
ITextRange searchRange = CodeEditor.Document.GetRange(0, 0);
FindOptions findOptions = MatchCaseToggleButton.IsChecked !.Value ? FindOptions.Case : FindOptions.None;
findOptions = MatchWordToggleButton.IsChecked !.Value ? FindOptions.Word : findOptions;
while (searchRange.FindText(textToFind, TextConstants.MaxUnitCount, findOptions) > 0)
{
searchRange.CharacterFormat.BackgroundColor = highlightBackgroundColor;
}
}
}
// 高亮显示用户搜索的字符
private void btnSearch_Click(object sender, RoutedEventArgs e)
{
// 清除高亮字符的高亮效果
ITextCharacterFormat charFormat;
for (int i = 0; i < _highlightedWords.Count; i++)
{
charFormat = _highlightedWords[i].CharacterFormat;
charFormat.BackgroundColor = Colors.Transparent;
_highlightedWords[i].CharacterFormat = charFormat;
}
_highlightedWords.Clear();
// 获取全部文本，并将操作点移动到文本的起点
ITextRange searchRange = txtEditor.Document.GetRange(0, TextConstants.MaxUnitCount);
searchRange.Move(0, 0);
bool textFound = true;
do
{
// 在全部文本中搜索指定的字符串
if (searchRange.FindText(txtSearch.Text, TextConstants.MaxUnitCount, FindOptions.None) < 1)
{
textFound = false;
}
else
{
_highlightedWords.Add(searchRange.GetClone());
// 实体化一个 ITextCharacterFormat，指定字符背景颜色为黄色
ITextCharacterFormat charFormatting = searchRange.CharacterFormat;
charFormatting.BackgroundColor = Colors.Orange;
// 设置指定文本的字符格式（高亮效果）
searchRange.CharacterFormat = charFormatting;
}
} while (textFound);
}
private void HighlightLinks()
{
string textContent;
this.Document.GetText(TextGetOptions.None, out textContent);
int start = 0;
int end = textContent.Length;
ITextRange range = this.Document.GetRange(start, end);
range.CharacterFormat.Underline = UnderlineType.None;
range.CharacterFormat.ForegroundColor = this.textForegroundColor;
if (this.Document.Selection == null)
{
return;
}
int startPosition = this.Document.Selection.StartPosition;
int endPosition = this.Document.Selection.EndPosition;
foreach (string uri in RegexHelper.FindUris(textContent))
{
int result = range.FindText(uri, end - start, FindOptions.None);
if (result > 0)
{
this.Document.Selection.SetRange(range.StartPosition, range.EndPosition);
range.CharacterFormat.Underline = UnderlineType.Single;
range.CharacterFormat.ForegroundColor = this.hyperlinkForegroundColor;
range.ScrollIntoView(PointOptions.None);
}
}
this.Document.Selection.SetRange(startPosition, endPosition);
}