private void ShowPowerExponentPart()
{
if (this.powerExponentPart == null)
{
return;
}
this.baseNumberPanel.Children.Clear();
this.powerPanel.Children.Clear();
CommonControlCreator.CreateContentControl(this.powerExponentPart.BaseNumber, this.baseNumberPanel, this.Foreground, null);
CommonControlCreator.CreateContentControl(this.powerExponentPart.Power.Content, this.powerPanel, this.Foreground, null);
}
private void ShowFractionPart()
{
if (this.fractionPart == null)
{
return;
}
if (this.fractionPart.WithPart != null)
{
this.withPanel.Visibility = System.Windows.Visibility.Visible;
CommonControlCreator.CreateContentControl(this.fractionPart.WithPart, this.withPanel, this.Foreground, null);
}
else
{
this.withPanel.Visibility = System.Windows.Visibility.Hidden;
}
CommonControlCreator.CreateContentControl(this.fractionPart.Numerator, this.umeratorPanel, this.Foreground, null);
CommonControlCreator.CreateContentControl(this.fractionPart.Denominator, this.denominatorPanel, this.Foreground, null);
}
public static Panel CreateContentControl(QuestionContent content, Panel contentPanel, Brush foreground, ContentPartCreated contentPartCreated)
{
Panel stackPanel = contentPanel;
if (stackPanel == null)
{
stackPanel = new StackPanel();
((StackPanel)stackPanel).Orientation = Orientation.Vertical;
}
if (content.ContentType == ContentType.Html ||
content.ContentType == ContentType.FlowDocument)
{
FlowDocumentScrollViewer documentViewer = new FlowDocumentScrollViewer();
documentViewer.FocusVisualStyle = null;
documentViewer.VerticalContentAlignment = VerticalAlignment.Center;
documentViewer.VerticalAlignment = VerticalAlignment.Center;
documentViewer.HorizontalContentAlignment = HorizontalAlignment.Left;
documentViewer.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
documentViewer.Background = Brushes.Transparent;
documentViewer.FontSize = 20;
FlowDocument document = null;
if (content.ContentType == ContentType.Html)
{
document = HtmlToXamlConverter.ConvertHtmlToXaml(content.Content);
}
else
{
document = HtmlToXamlConverter.DeserializeFlowDocument(content.Content);
}
replaceTextBoxWithRichTextBox(document, content, contentPartCreated);
document.FontSize = 20;
documentViewer.Document = document;
stackPanel.Children.Add(documentViewer);
}
else
{
string questionContent = content.Content;
if (string.IsNullOrEmpty(questionContent))
{
return(stackPanel);
}
int startIndex = 0;
StackPanel itemPanel = new StackPanel();
itemPanel.Orientation = Orientation.Horizontal;
stackPanel.Children.Add(itemPanel);
bool newLine = false;
while (true)
{
startIndex = questionContent.IndexOf("_$", 0);
if (startIndex >= 0)
{
int endIndex = questionContent.IndexOf("$_", startIndex);
string placeHolder = questionContent.Substring(startIndex, endIndex - startIndex + 2);
string text = questionContent.Substring(0, startIndex);
if (!string.IsNullOrEmpty(text))
{
string[] textParts = text.Split(new char[] { '\n' });
if (textParts.Length > 1)
{
for (int i = 0; i < textParts.Length; i++)
{
string temp = textParts[i];
itemPanel.Children.Add(CreateText(temp, foreground));
if (i == textParts.Length - 1)
{
break;
}
StackPanel nextItemPanel = new StackPanel();
nextItemPanel.Orientation = Orientation.Horizontal;
stackPanel.Children.Add(nextItemPanel);
itemPanel = nextItemPanel;
}
}
else
{
itemPanel.Children.Add(CreateText(text, foreground));
}
}
//else
//{
// string[] textParts = text.Split(new char[] { '\n' });
// if (textParts.Length > 1)
// {
// foreach (string temp in textParts)
// {
// itemPanel.Children.Add(CreateText(temp));
// StackPanel nextItemPanel = new StackPanel();
// nextItemPanel.Orientation = Orientation.Horizontal;
// stackPanel.Children.Add(nextItemPanel);
// itemPanel = nextItemPanel;
// }
// }
// else
// {
// itemPanel.Children.Add(CreateText(text));
// }
//}
if (newLine)
{
StackPanel nextItemPanel = new StackPanel();
nextItemPanel.Orientation = Orientation.Horizontal;
stackPanel.Children.Add(nextItemPanel);
itemPanel = nextItemPanel;
}
newLine = false;
QuestionContentPart part = content.GetContentPart(placeHolder);
UIElement element = CommonControlCreator.CreateUIPart(part, foreground);
itemPanel.Children.Add(element);
if (contentPartCreated != null)
{
contentPartCreated(element);
}
questionContent = questionContent.Remove(0, endIndex + 2);
if (string.IsNullOrEmpty(questionContent))
{
break;
}
}
else
{
string[] textParts = questionContent.Split(new char[] { '\n' });
foreach (string text in textParts)
{
itemPanel.Children.Add(CreateText(text, foreground));
StackPanel nextItemPanel = new StackPanel();
nextItemPanel.Orientation = Orientation.Horizontal;
stackPanel.Children.Add(nextItemPanel);
itemPanel = nextItemPanel;
}
break;
}
}
}
return(stackPanel);
}