private void OnRichTextBlockLoaded(object sender, RoutedEventArgs e)
{
RichTextBlockOverflow overflow = null;
bool isOverFlow = false;
if (this.rtTextBlock.HasOverflowContent)
{
overflow = new RichTextBlockOverflow();
rtTextBlock.OverflowContentTarget = overflow;
this.flipview.Items.Add(overflow);
overflow.UpdateLayout();
isOverFlow = overflow.HasOverflowContent;
while (isOverFlow)
{
RichTextBlockOverflow temp = overflow;
overflow = new RichTextBlockOverflow();
temp.OverflowContentTarget = overflow;
this.flipview.Items.Add(overflow);
overflow.UpdateLayout();
isOverFlow = overflow.HasOverflowContent;
}
}
}
//加载文章内容，以代码处理是因为文章长度不定，即处理文本溢出问题
private void loadcontent()
{
stPanel.Children.Clear();
// 为了支持文本分块，使用RichTextBlock
RichTextBlock tbContent = new RichTextBlock();
tbContent.Width = CT_WIDTH;
tbContent.Height = CT_HEIGHT;
tbContent.TextWrapping = TextWrapping.Wrap;
tbContent.Margin = new Thickness(CT_MARGIN, 0, CT_MARGIN, CT_MARGIN + 20);
Paragraph ph = new Paragraph();
Run txtRun = new Run();
txtRun.Text = _viewmodel.one.ContentstrContent;
ph.Inlines.Add(txtRun);
tbContent.Blocks.Add(ph);
if(Window.Current.Bounds.Height == 1080)
tbContent.FontSize = Convert.ToDouble(32);
else if (Window.Current.Bounds.Height == 1440)
tbContent.FontSize = Convert.ToDouble(38);
else
tbContent.FontSize = Convert.ToDouble(20);
stPanel.Children.Add(tbContent);
// 更新一下状态，方便获取是否有溢出的文本
tbContent.UpdateLayout();
bool isflow = tbContent.HasOverflowContent;
// 因为除了第一个文本块是RichTextBlock，
// 后面的都是RichTextBlockOverflow一个一个接起来的
// 所以我们需要两个变量
RichTextBlockOverflow oldFlow = null, newFlow = null;
if (isflow)
{
oldFlow = new RichTextBlockOverflow();
oldFlow.Width = CT_WIDTH;
oldFlow.Height = CT_HEIGHT;
oldFlow.Margin = new Thickness(CT_MARGIN, 0, CT_MARGIN, CT_MARGIN + 20);
tbContent.OverflowContentTarget = oldFlow;
stPanel.Children.Add(oldFlow);
oldFlow.UpdateLayout();
// 继续判断是否还有溢出
isflow = oldFlow.HasOverflowContent;
}
while (isflow)
{
newFlow = new RichTextBlockOverflow();
newFlow.Height = CT_HEIGHT;
newFlow.Width = CT_WIDTH;
newFlow.Margin = new Thickness(CT_MARGIN, 0, CT_MARGIN, CT_MARGIN + 20);
oldFlow.OverflowContentTarget = newFlow;
stPanel.Children.Add(newFlow);
newFlow.UpdateLayout();
// 继续判断是否还有溢出的文本
isflow = newFlow.HasOverflowContent;
// 当枪一个变量填充了文本后，
// 把第一个变量的引用指向当前RichTextBlockOverflow
// 确保OverflowContentTarget属性可以前后相接
oldFlow = newFlow;
}
}
