private void fontFamilyBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count > 0 && fontFamilyBox.SelectedItem != null)
{
TextEditing.SetRTBValue(FontFamilyProperty, fontFamilyBox.SelectedItem.ToString(), true);
}
}
private void UpdateFontSize(bool focusRTB)
{
string text = fontSizeBox.Text;
double value;
if (double.TryParse(text, out value))
{
TextEditing.SetRTBValue(FontSizeProperty, Converter.PixelToPoint(value), focusRTB, _rtb);
bool found = false;
foreach (ComboBoxItem each in fontSizeBox.Items)
{
if (each.Content.ToString() == text)
{
each.IsSelected = true;
found = true;
break;
}
}
if (!found)
{
fontSizeBox.SelectedIndex = -1;
fontSizeBox.Text = text;
}
}
}
private void UpdateFormattingUI(RichTextBox rtb)
{
object font = TextEditing.GetRTBValue(TextElement.FontFamilyProperty, rtb);
if (font != DependencyProperty.UnsetValue)
{
fontFamilyBox.IsTextSearchEnabled = true;
fontFamilyBox.Text = font.ToString();
fontFamilyBox.IsTextSearchEnabled = false;
}
else
{
fontFamilyBox.Text = "";
fontFamilyBox.SelectedIndex = -1;
}
object fontSize = TextEditing.GetRTBValue(TextElement.FontSizeProperty, rtb);
if (fontSize != DependencyProperty.UnsetValue)
{
fontSizeBox.IsTextSearchEnabled = true;
fontSizeBox.Text = Converter.PointToPixel((double)(fontSize)).ToString();
fontSizeBox.IsTextSearchEnabled = false;
}
else
{
fontSizeBox.Text = "";
fontSizeBox.SelectedIndex = -1;
}
object fontWeight = TextEditing.GetRTBValue(FontWeightProperty, rtb);
boldButton.IsChecked = fontWeight != DependencyProperty.UnsetValue ? (FontWeight)fontWeight == FontWeights.Bold : false;
object fontStyle = TextEditing.GetRTBValue(FontStyleProperty, rtb);
italicButton.IsChecked = fontStyle != DependencyProperty.UnsetValue ? (FontStyle)fontStyle == FontStyles.Italic : false;
object textdecoration = TextEditing.GetRTBValue(TextBlock.TextDecorationsProperty, rtb);
underlineButton.IsChecked = TextEditing.ContainsTextDecoration(textdecoration, TextDecorations.Underline);
strikethroughButton.IsChecked = TextEditing.ContainsTextDecoration(textdecoration, TextDecorations.Strikethrough);
object color = TextEditing.GetRTBValue(ForegroundProperty);
if (color != DependencyProperty.UnsetValue)
{
fontColor.ActiveColor = (Brush)color;
}
object highlight = TextEditing.GetRTBValue(TextElement.BackgroundProperty);
if (highlight != DependencyProperty.UnsetValue)
{
highlightColor.ActiveColor = (Brush)highlight;
}
UpdateSelectionListType(rtb);
}
private void clearFormatting_Click(object sender, RoutedEventArgs e)
{
_rtb.BeginChange();
_rtb.Selection.ClearAllProperties();
_rtb.Selection.ApplyPropertyValue(Paragraph.MarginProperty, new Thickness(0));
TextEditing.ChangeRTBParagraphBackground(_rtb, null);
_rtb.EndChange();
UpdateFormattingUI(_rtb);
}
private static void ExecutedStrikethroughCommand(object sender, ExecutedRoutedEventArgs e)
{
ContextTextFormatter formatter = (ContextTextFormatter)sender;
if (formatter.strikethroughButton.IsChecked == true)
{
TextEditing.AddTextDecoration(TextDecorations.Strikethrough);
}
else
{
TextEditing.RemoveTextDecoration(TextDecorations.Strikethrough);
}
}
private static void ExecutedUnderlineCommand(object sender, ExecutedRoutedEventArgs e)
{
ContextTextFormatter formatter = (ContextTextFormatter)sender;
if (formatter.underlineButton.IsChecked == true)
{
TextEditing.AddTextDecoration(TextDecorations.Underline);
}
else
{
TextEditing.RemoveTextDecoration(TextDecorations.Underline);
}
}
private void fontSizeBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count > 0)
{
string newSize = (string)((ContentControl)fontSizeBox.SelectedItem).Content;
double value;
if (double.TryParse(newSize, out value))
{
TextEditing.SetRTBValue(FontSizeProperty, Converter.PixelToPoint(value), true);
}
}
}
private void UpdateFontFamily(bool focusRTB)
{
string text = fontFamilyBox.Text;
TextEditing.SetRTBValue(FontFamilyProperty, text, focusRTB, _rtb);
bool found = false;
for (int i = 0; i < fontFamilyBox.Items.Count; i++)
{
if (fontFamilyBox.Items[i].ToString() == text)
{
fontFamilyBox.SelectedIndex = i;
found = true;
break;
}
}
if (!found)
{
fontFamilyBox.SelectedIndex = -1;
fontFamilyBox.Text = text;
}
}
private void highlightColor_OnSelectedChangedEvent(object sender, EventArgs e)
{
TextEditing.SetRTBValue(TextElement.BackgroundProperty, highlightColor.SelectedColor, true, _rtb);
}
private void fontColor_OnSelectedChangedEvent(object sender, EventArgs e)
{
TextEditing.SetRTBValue(ForegroundProperty, fontColor.SelectedColor, true, _rtb);
}
