private void Overflow(RichTextBlockOverflow rtbo)
{
void Flow()
{
if (rtbo.HasOverflowContent && rtbo.OverflowContentTarget == null)
{
var index = IndexOf(rtbo);
var target = new RichTextBlockOverflow
{
MaxWidth = 800
};
target.SetBinding(RichTextBlockOverflow.PaddingProperty, _bindings.PaddingBinding);
rtbo.OverflowContentTarget = target;
Insert(index + 1, rtbo.OverflowContentTarget);
target.UpdateLayout();
Overflow(target);
}
else if (!rtbo.HasOverflowContent && rtbo.OverflowContentTarget != null)
{
Remove(rtbo.OverflowContentTarget);
rtbo.OverflowContentTarget = null;
}
}
rtbo.SizeChanged += (s, e) =>
{
Flow();
};
Flow();
// rtbo.RegisterPropertyChangedCallback(RichTextBlockOverflow.HasOverflowContentProperty, HasOverflowContentPropertyChanged);
}
public PageItem(PageItem block)
{
Bg = new Border();
Block = new RichTextBlockOverflow();
Bg.Child = Block;
SetOverTarget(block);
}
public ContinuationPageFormat(RichTextBlockOverflow textLinkContainer, FontFamily textEditorFontFamily, double textEditorFontSize, string headerText, string footerText)
{
InitializeComponent();
if (!string.IsNullOrEmpty(headerText))
{
Header.Visibility = Visibility.Visible;
Header.Margin = new Thickness(0, 0, 0, textEditorFontSize + 6);
HeaderTextBlock.Text = headerText;
HeaderTextBlock.FontFamily = textEditorFontFamily;
HeaderTextBlock.FontSize = textEditorFontSize + 4;
}
else
{
Header.Visibility = Visibility.Collapsed;
HeaderTextBlock.FontFamily = textEditorFontFamily;
HeaderTextBlock.FontSize = textEditorFontSize + 4;
}
if (!string.IsNullOrEmpty(footerText))
{
Footer.Visibility = Visibility.Visible;
FooterTextBlock.Text = footerText;
FooterTextBlock.FontFamily = textEditorFontFamily;
FooterTextBlock.FontSize = textEditorFontSize;
}
else
{
Footer.Visibility = Visibility.Collapsed;
FooterTextBlock.FontFamily = textEditorFontFamily;
FooterTextBlock.FontSize = textEditorFontSize;
}
textLinkContainer.OverflowContentTarget = ContinuationPageLinkedContainer;
}
private void AddPages(Size containerSize, RichTextBlock layout)
{
if (_flip.Items != null)
{
_flip.Items.Add(new FlipViewItem {
Content = layout
});
layout.Measure(containerSize);
if (layout.HasOverflowContent)
{
var richTextBlockOverflow = new RichTextBlockOverflow();
layout.OverflowContentTarget = richTextBlockOverflow;
_flip.Items.Add(new FlipViewItem()
{
Content = richTextBlockOverflow
});
richTextBlockOverflow.Measure(containerSize);
while (richTextBlockOverflow.HasOverflowContent)
{
var newRichTextBlockOverflow = new RichTextBlockOverflow();
richTextBlockOverflow.OverflowContentTarget = newRichTextBlockOverflow;
richTextBlockOverflow = newRichTextBlockOverflow;
_flip.Items.Add(new FlipViewItem()
{
Content = richTextBlockOverflow
});
richTextBlockOverflow.Measure(containerSize);
}
}
}
}
/// <summary>
/// This function creates and adds one print preview page to the internal cache of print preview
/// pages stored in printPreviewPages.
/// </summary>
/// <param name="lastRTBOAdded">Last RichTextBlockOverflow element added in the current content</param>
/// <param name="printPageDescription">Printer's page description</param>
protected virtual RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
// XAML element that is used to represent to "printing page"
FrameworkElement page;
// The link container for text overflowing in this page
RichTextBlockOverflow textLink;
// Check if this is the first page ( no previous RichTextBlockOverflow)
if (lastRTBOAdded == null)
{
// If this is the first page add the specific scenario content
page = firstPage;
//Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
StackPanel footer = (StackPanel)page.FindName("Footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
else
{
// Flow content (text) from previous pages
page = new ContinuationPage(lastRTBOAdded);
}
// Set "paper" width
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("PrintableArea");
// Get the margins size
// If the ImageableRect is smaller than the app provided margins use the ImageableRect
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * ApplicationContentMarginLeft * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * ApplicationContentMarginTop * 2);
// Set-up "printable area" on the "paper"
printableArea.Width = firstPage.Width - marginWidth;
printableArea.Height = firstPage.Height - marginHeight;
// Add the (newley created) page to the print canvas which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
PrintCanvas.Children.Add(page);
PrintCanvas.InvalidateMeasure();
PrintCanvas.UpdateLayout();
// Find the last text container and see if the content is overflowing
textLink = (RichTextBlockOverflow)page.FindName("ContinuationPageLinkedContainer");
// Check if this is the last page
/*if (!textLink.HasOverflowContent && textLink.Visibility == Windows.UI.Xaml.Visibility.Visible)
* {
* StackPanel footer = (StackPanel)page.FindName("Footer");
* footer.Visibility = Windows.UI.Xaml.Visibility.Visible;
* }*/
// Add the page to the page preview collection
printPreviewPages.Add(page);
return(textLink);
}
public ContinuationPage(RichTextBlockOverflow textLinkContainer)
{
this.InitializeComponent();
textLinkContainer.OverflowContentTarget = ContinuationPageLinkedContainer;
}
public PrintPage(RichTextBlockOverflow textLinkContainer)
: this()
{
if (textLinkContainer == null)
{
throw new ArgumentNullException(nameof(textLinkContainer));
}
textLinkContainer.OverflowContentTarget = textOverflow;
}
private void RichTextBlockOverflow_Loaded(object sender, RoutedEventArgs e)
{
RichTextBlockOverflow flow = sender as RichTextBlockOverflow;
if (flow != null)
{
flow.Width = PerfectColumnWith;
}
}
private void ShowContent(string selectionText)
{
bool hasSelection = !string.IsNullOrEmpty(selectionText);
selectionMode = hasSelection;
// Hide/show images depending by the selected text
StackPanel header = (StackPanel)firstPage.FindName("Header");
header.Visibility = hasSelection ? Windows.UI.Xaml.Visibility.Collapsed : Windows.UI.Xaml.Visibility.Visible;
Grid pageContent = (Grid)firstPage.FindName("PrintableArea");
pageContent.RowDefinitions[0].Height = GridLength.Auto;
Image scenarioImage = (Image)firstPage.FindName("ScenarioImage");
scenarioImage.Visibility = hasSelection ? Windows.UI.Xaml.Visibility.Collapsed : Windows.UI.Xaml.Visibility.Visible;
// Expand the middle paragraph on the full page if printing only selected text
RichTextBlockOverflow firstLink = (RichTextBlockOverflow)firstPage.FindName("FirstLinkedContainer");
firstLink.SetValue(Grid.ColumnSpanProperty, hasSelection ? 2 : 1);
// Clear(hide) current text and add only the selection if a selection exists
RichTextBlock mainText = (RichTextBlock)firstPage.FindName("TextContent");
RichTextBlock textSelection = (RichTextBlock)firstPage.FindName("TextSelection");
// Main (default) scenario text
mainText.Visibility = hasSelection ? Windows.UI.Xaml.Visibility.Collapsed : Windows.UI.Xaml.Visibility.Visible;
mainText.OverflowContentTarget = hasSelection ? null : firstLink;
// Scenario text-blocks used for displaying selection
textSelection.OverflowContentTarget = hasSelection ? firstLink : null;
textSelection.Visibility = hasSelection ? Windows.UI.Xaml.Visibility.Visible : Windows.UI.Xaml.Visibility.Collapsed;
textSelection.Blocks.Clear();
// Force the visual root to go through layout so that the linked containers correctly distribute the content inside them.
PrintCanvas.InvalidateArrange();
PrintCanvas.InvalidateMeasure();
PrintCanvas.UpdateLayout();
// Add the text selection if any
if (hasSelection)
{
Run inlineText = new Run();
inlineText.Text = selectionText;
Paragraph paragraph = new Paragraph();
paragraph.Inlines.Add(inlineText);
textSelection.Blocks.Add(paragraph);
}
}
protected override RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
RichTextBlockOverflow textLink = base.AddOnePrintPreviewPage(lastRTBOAdded, printPageDescription);
// Don't show footer in selection mode
if (selectionMode)
{
FrameworkElement page = (FrameworkElement)printPreviewPages[printPreviewPages.Count - 1];
StackPanel footer = (StackPanel)page.FindName("Footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
return(textLink);
}
/// <summary>
/// This function creates and adds one print preview page to the internal cache of print preview
/// pages stored in printPreviewPages.
/// </summary>
/// <param name="lastRTBOAdded">Last RichTextBlockOverflow element added in the current content.</param>
/// <param name="printPageDescription">Printer's page description</param>
/// <returns>The link container for text overflowing in this page.</returns>
protected virtual RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
// XAML element that is used to represent to "printing page".
FrameworkElement page = FirstPage;
// The link container for text overflowing in this page.
RichTextBlockOverflow textLink;
// Check if this is the first page ( no previous RichTextBlockOverflow).
if (lastRTBOAdded == null)
{
// Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout.
(page.FindName("Footer") as StackPanel).Visibility = Visibility.Collapsed;
}
// Set "paper" width.
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
var printableArea = page.FindName("PrintableArea") as Grid;
// Get the margins size.
// If the ImageableRect is smaller than the app provided margins use the ImageableRect.
double marginWidth = 0;
double marginHeight = 0;
// Set-up "printable area" on the "paper".
printableArea.Width = FirstPage.Width - marginWidth;
printableArea.Height = FirstPage.Height - marginHeight;
// Add the (newley created) page to the print canvas which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
PrintCanvas.Children.Add(page);
PrintCanvas.InvalidateMeasure();
PrintCanvas.UpdateLayout();
// Find the last text container and see if the content is overflowing.
textLink = page.FindName("ContinuationPageLinkedContainer") as RichTextBlockOverflow;
// Check if this is the last page.
if (!textLink.HasOverflowContent && textLink.Visibility == Visibility.Visible)
{
(page.FindName("Footer") as StackPanel).Visibility = Visibility.Visible;
}
// Add the page to the page preview collection.
PrintPreviewPages.Add(page);
return(textLink);
}
private void checkOverflow(object sender, RoutedEventArgs e)
{
RichTextBlockOverflow textBlock = (RichTextBlockOverflow)sender;
if (textBlock.HasOverflowContent)
{
RichTextBlockOverflow overflow = new RichTextBlockOverflow();
overflow.Margin = new Thickness(50);
overflow.Loaded -= loadedEventHandler;
overflow.Loaded += loadedEventHandler;
textBlock.OverflowContentTarget = overflow;
Overflows.Add(overflow);
flipView.Items.Add(overflow);
}
}
/// <summary>
/// This function creates and adds one print preview page to the internal cache of print preview
/// pages stored in printPreviewPages.
/// </summary>
/// <param name="lastRTBOAdded">Last RichTextBlockOverflow element added in the current content</param>
/// <param name="printPageDescription">Printer's page description</param>
protected virtual RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
// XAML element that is used to represent to "printing page"
FrameworkElement page;
RichTextBlockOverflow textLink;
page = firstPage;
// Set "paper" width
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("printableArea");
// Get the margins size
// If the ImageableRect is smaller than the app provided margins use the ImageableRect
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * ApplicationContentMarginLeft * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * ApplicationContentMarginTop * 2);
// Set-up "printable area" on the "paper"
printableArea.Width = firstPage.Width - marginWidth;
printableArea.Height = firstPage.Height - marginHeight;
// Add the (newley created) page to the printing root which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
PrintingRoot.Children.Add(page);
PrintingRoot.InvalidateMeasure();
PrintingRoot.UpdateLayout();
// Find the last text container and see if the content is overflowing
textLink = (RichTextBlockOverflow)page.FindName("continuationPageLinkedContainer");
// Check if this is the last page
if (!textLink.HasOverflowContent && textLink.Visibility == Windows.UI.Xaml.Visibility.Visible)
{
//StackPanel footer = (StackPanel)page.FindName("footer");
//footer.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
// Add the page to the page preview collection
printPreviewPages.Add(page);
return(textLink);
}
protected virtual RichTextBlockOverflow RenderOverflow(FrameworkElement target)
{
var tmp = new RichTextBlockOverflow();
if (target is RichTextBlock richBlock)
{
richBlock.OverflowContentTarget = tmp;
}
else if (target is RichTextBlockOverflow of)
{
of.OverflowContentTarget = tmp;
}
tmp.Padding = Padding;
return(tmp);
}
private RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
FrameworkElement page;
RichTextBlockOverflow link;
if (lastRTBOAdded == null)
{
page = page1;
StackPanel footer = (StackPanel)page.FindName("footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
else
{
page = new ContinuationPage(lastRTBOAdded);
}
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("printableArea");
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * left * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * top * 2);
printableArea.Width = page1.Width - marginWidth;
printableArea.Height = page1.Height - marginHeight;
PrintContainer.Children.Add(page);
PrintContainer.InvalidateMeasure();
PrintContainer.UpdateLayout();
// Find the last text container and see if the content is overflowing
link = (RichTextBlockOverflow)page.FindName("continuationPageLinkedContainer");
// Check if this is the last page
if (!link.HasOverflowContent && link.Visibility == Windows.UI.Xaml.Visibility.Visible)
{
StackPanel footer = (StackPanel)page.FindName("footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
// Add the page to the page preview collection
pages.Add(page);
return(link);
}
private Task Process(Size containerSize)
{
if (_flip.Items != null && _flip.Items.Count == 0)
{
if (_lines != null)
{
var layout = CreateLayout();
AddParagraph(layout);
AddLines(layout);
AddPages(containerSize, layout);
_lines = null;
}
}
else
{
foreach (var obj in _flip.Items.AsNotNull())
{
(obj as FrameworkElement).Measure(containerSize);
}
while (((_flip.Items[_flip.Items.Count - 1] as FlipViewItem).Content as RichTextBlockOverflow).HasOverflowContent)
{
var richTextBlockOverflow = (_flip.Items[_flip.Items.Count - 1] as FlipViewItem).Content as RichTextBlockOverflow;
var newRichTextBlockOverflow = new RichTextBlockOverflow();
richTextBlockOverflow.OverflowContentTarget = newRichTextBlockOverflow;
richTextBlockOverflow = newRichTextBlockOverflow;
_flip.Items.Add(new FlipViewItem()
{
Content = richTextBlockOverflow
});
richTextBlockOverflow.Measure(containerSize);
}
// Удаление избыточных элементов RichTextBlockOverflow
while (!((_flip.Items[_flip.Items.Count - 2] as FlipViewItem).Content as RichTextBlockOverflow).HasOverflowContent)
{
_flip.Items.RemoveAt(_flip.Items.Count - 1);
}
}
return(Task.FromResult(true));
}
public void SetContent(ReaderPage readerPage)
{
var textBlock = new RichTextBlockOverflow();
if (readerPage.ContentControl is RichTextBlock rtb)
{
rtb.OverflowContentTarget = textBlock;
}
else if (readerPage.ContentControl is RichTextBlockOverflow of)
{
of.OverflowContentTarget = textBlock;
}
textBlock.Margin = Padding;
this.Content = textBlock;
ContentControl = textBlock;
}
/// <summary>
/// Creates a print preview page and adds it to the internal list.
/// </summary>
private RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastOverflowAdded, PrintPageDescription printPageDescription)
{
PrintPage printPage;
// Check if this is the first page.
if (lastOverflowAdded == null)
{
printPage = _firstPrintPage;
}
else
{
// Flow content from previous pages.
printPage = new PrintPage(lastOverflowAdded);
// Remove the duplicate OverflowContentTarget.
printPage.TextContent.OverflowContentTarget = null;
}
// Set page size.
ApplyPrintPageDescription(printPageDescription, printPage);
// Add title.
var titleTextBlock = (TextBlock)printPage.FindName("title");
if (titleTextBlock != null)
{
titleTextBlock.Text = Title;
}
// Add page number
_pageNumber += 1;
var pageNumberTextBlock = (TextBlock)printPage.FindName("pageNumber");
if (pageNumberTextBlock != null)
{
pageNumberTextBlock.Text = string.Format("- {0} -", _pageNumber);
}
// Add the page to the page preview collection
_printPreviewPages.Add(printPage);
// The link container for text overflowing in this page
return(printPage.TextOverflow);
}
protected virtual RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
FrameworkElement page;
RichTextBlockOverflow textLink;
if (lastRTBOAdded == null)
{
page = firstPage;
StackPanel footer = (StackPanel)page.FindName("Footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
else
{
page = new ContinuationPage(lastRTBOAdded);
}
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("PrintableArea");
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * ApplicationContentMarginLeft * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * ApplicationContentMarginTop * 2);
printableArea.Width = firstPage.Width - marginWidth;
printableArea.Height = firstPage.Height - marginHeight;
PrintCanvas.Children.Add(page);
PrintCanvas.InvalidateMeasure();
PrintCanvas.UpdateLayout();
textLink = (RichTextBlockOverflow)page.FindName("ContinuationPageLinkedContainer");
if (!textLink.HasOverflowContent && textLink.Visibility == Windows.UI.Xaml.Visibility.Visible)
{
StackPanel footer = (StackPanel)page.FindName("Footer");
footer.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
printPreviewPages.Add(page);
return(textLink);
}
protected virtual void AddPrintPreviewPages(PrintPageDescription printPageDescription)
{
Canvas page;
Grid content;
BuildBasicLayout(printPageDescription, out page, out content);
RichTextBlockOverflow rtbo = new RichTextBlockOverflow();
RichTextBlock rtbl = new RichTextBlock();
rtbl.SetValue(Grid.RowProperty, 2);
rtbl = CreateReservationBoardingPass(rtbl);
int a = rtbl.Blocks.Count();
rtbl.Foreground = new SolidColorBrush(Colors.Black);
content.Children.Add(rtbl);
page.Children.Add(content);
_printPreviewPages.Add(page);
if (this._type == PrintJobType.MultiPage)
{
BuildBasicLayout(printPageDescription, out page, out content);
rtbl = new RichTextBlock();
rtbl.SetValue(Grid.RowProperty, 2);
rtbl = CreateReservationInvoice(rtbl);
rtbl.Foreground = new SolidColorBrush(Colors.Black);
content.Children.Add(rtbl);
page.Children.Add(content);
_printPreviewPages.Add(page);
}
// Add the newley created page to the printing root which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
PrintingRoot.InvalidateMeasure();
PrintingRoot.UpdateLayout();
}
void OnRichTextBlockSizeChanged(object sender, SizeChangedEventArgs args)
{
RichTextBlock richTextBlock = sender as RichTextBlock;
if (richTextBlock.ActualHeight == 0)
{
return;
}
// Get rid of all previous RichTextBlockOverflow objects
while (stackPanel.Children.Count > 1)
{
stackPanel.Children.RemoveAt(1);
}
if (!richTextBlock.HasOverflowContent)
{
return;
}
// Create first RichTextBlockOverflow
RichTextBlockOverflow richTextBlockOverflow = new RichTextBlockOverflow();
richTextBlock.OverflowContentTarget = richTextBlockOverflow;
stackPanel.Children.Add(richTextBlockOverflow);
// Measure it
richTextBlockOverflow.Measure(new Size(richTextBlockOverflow.Width, this.ActualHeight));
// If it has overflow content, repeat the process
while (richTextBlockOverflow.HasOverflowContent)
{
RichTextBlockOverflow newRichTextBlockOverflow = new RichTextBlockOverflow();
richTextBlockOverflow.OverflowContentTarget = newRichTextBlockOverflow;
richTextBlockOverflow = newRichTextBlockOverflow;
stackPanel.Children.Add(richTextBlockOverflow);
richTextBlockOverflow.Measure(new Size(richTextBlockOverflow.Width, this.ActualHeight));
}
}
//This method does all of the heavy lifting for us, calculating the size of the page,
//setting margins, and saving them to the pages List<>.
private RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
//This method does all of the heavy lifting for us, calculating the size of the
//page, setting margins, and saving them to the pages List<>.
FrameworkElement page;
RichTextBlockOverflow link;
if (lastRTBOAdded == null)
{
page = page1;
}
else
{
page = new ContinuesPage(lastRTBOAdded);
}
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("printableArea");
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * left * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * top * 2);
printableArea.Width = page1.Width - marginWidth;
printableArea.Height = page1.Height - marginHeight;
PrintContainer.Children.Add(page);
PrintContainer.InvalidateMeasure();
PrintContainer.UpdateLayout();
// Find the last text container and see if the content is overflowing
link = (RichTextBlockOverflow)page.FindName("continuationPageLinkedContainer");
// Add the page to the page preview collection
pages.Add(page);
return(link);
}
private void GenerateReceiptPages(PrintPageDescription printPageDescription, RichTextBlockOverflow previousOverflowContainer = null)
{
FrameworkElement page;
if (previousOverflowContainer == null)
{
page = _firstPage;
}
else
{
page = new ReceiptContinuationPreviewPage(previousOverflowContainer);
}
PreparePrintPage(printPageDescription, page, page);
var overflowContainer = (RichTextBlockOverflow)page.FindName("continuationPageLinkedContainer");
if (overflowContainer.HasOverflowContent)
{
GenerateReceiptPages(printPageDescription, overflowContainer);
}
}
protected override void OnApplyTemplate()
{
Label = GetTemplateChild(nameof(Label)) as RichTextBlock;
OverflowArea = GetTemplateChild(nameof(OverflowArea)) as RichTextBlockOverflow;
TitleLabel = GetTemplateChild(nameof(TitleLabel)) as Run;
SubtitleLabel = GetTemplateChild(nameof(SubtitleLabel)) as Run;
ContentLabel = GetTemplateChild(nameof(ContentLabel)) as Run;
Texture = GetTemplateChild(nameof(Texture)) as Image;
Button = GetTemplateChild(nameof(Button)) as Button;
Run1 = GetTemplateChild(nameof(Run1)) as Run;
Run2 = GetTemplateChild(nameof(Run2)) as Run;
Run3 = GetTemplateChild(nameof(Run3)) as Run;
Label.OverflowContentTarget = OverflowArea;
Button.Click += Button_Click;
_templateApplied = true;
if (_message != null)
{
UpdateMessage(_message);
}
}
protected override RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
// Check if we need to hide/show text & images for this scenario
// Since all is rulled by the first page (page flow), here is where we must start
if (lastRTBOAdded == null)
{
// Get a refference to page objects
Grid pageContent = (Grid)firstPage.FindName("printableArea");
Image scenarioImage = (Image)firstPage.FindName("scenarioImage");
RichTextBlock mainText = (RichTextBlock)firstPage.FindName("textContent");
RichTextBlockOverflow firstLink = (RichTextBlockOverflow)firstPage.FindName("firstLinkedContainer");
RichTextBlockOverflow continuationLink = (RichTextBlockOverflow)firstPage.FindName("continuationPageLinkedContainer");
// Hide(collapse) and move elements in different grid cells depending by the viewable content(only text, only pictures)
scenarioImage.Visibility = ShowImage ? Windows.UI.Xaml.Visibility.Visible : Windows.UI.Xaml.Visibility.Collapsed;
firstLink.SetValue(Grid.ColumnSpanProperty, ShowImage ? 1 : 2);
scenarioImage.SetValue(Grid.RowProperty, ShowText ? 2 : 1);
scenarioImage.SetValue(Grid.ColumnProperty, ShowText ? 1 : 0);
pageContent.ColumnDefinitions[0].Width = new GridLength(ShowText ? 6 : 4, GridUnitType.Star);
pageContent.ColumnDefinitions[1].Width = new GridLength(ShowText ? 4 : 6, GridUnitType.Star);
// Break the text flow if the app is not printing text in order not to spawn pages with blank content
mainText.Visibility = ShowText ? Windows.UI.Xaml.Visibility.Visible : Windows.UI.Xaml.Visibility.Collapsed;
continuationLink.Visibility = ShowText ? Windows.UI.Xaml.Visibility.Visible : Windows.UI.Xaml.Visibility.Collapsed;
// Hide header if printing only images
StackPanel header = (StackPanel)firstPage.FindName("header");
header.Visibility = ShowText ? Windows.UI.Xaml.Visibility.Visible : Windows.UI.Xaml.Visibility.Collapsed;
}
//Continue with the rest of the base printing layout processing (paper size, printable page size)
return(base.AddOnePrintPreviewPage(lastRTBOAdded, printPageDescription));
}
public PageItem(Border bg, RichTextBlockOverflow block)
{
Bg = bg;
Block = block;
}
/// <summary>
/// “导出”的关键方法，用于添加打印选项和设置打印页面
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PrintDocument_Paginate(object sender, PaginateEventArgs e)
{
PrintTaskOptions printingOptions = e.PrintTaskOptions;
PrintPageDescription printPageDescription = printingOptions.GetPageDescription(0);
RememberInlineUIElementsLayout(htmlBlock);
//创建新打印页面
page = new PageToPrint
{
Width = printPageDescription.PageSize.Width,
Height = printPageDescription.PageSize.Height,
VerticalAlignment = VerticalAlignment.Top
};
printPanel.Children.Add(page);
printPanel.InvalidateMeasure();
printPanel.UpdateLayout();
//设置新页面
pagesToPrint = new List <UIElement>();
//记录RichTextBlock中每个控件的大小
RememberInlineUIElementsLayout(htmlBlock);
//将控件迁移到打印页面
newsPanel.Width = newsPanel.ActualWidth;
newsPanel.Height = printPageDescription.PageSize.Height;
oldCanvasSize = newsCanvas.ActualHeight;
headerPanel.Width = headerPanel.ActualWidth;
htmlBlock.Width = htmlBlock.ActualWidth;
htmlBlock.Height = printPageDescription.PageSize.Height - headerPanel.ActualHeight;
grid = new Grid()
{
Width = newsPanel.Width,
Height = newsPanel.Height,
VerticalAlignment = VerticalAlignment.Top
};
contentGrid.Children.Remove(newsPanel);
grid.Children.Add(newsPanel);
page.PrintableContentViewBox.Child = grid;
UpdateInlineUIElementsLayout(htmlBlock, new Size(htmlBlock.Width, htmlBlock.Height));
//更新布局
page.InvalidateMeasure();
page.UpdateLayout();
//将页面添加到页面列表
pagesToPrint.Add(page);
bool hasOverflowContent = false;
RichTextBlockOverflow richTextBlockOverflow = null;
if (htmlBlock.HasOverflowContent)
{
hasOverflowContent = true;
richTextBlockOverflow = new RichTextBlockOverflow
{
Height = grid.ActualHeight,
Width = grid.Width,
VerticalAlignment = VerticalAlignment.Top,
};
htmlBlock.OverflowContentTarget = richTextBlockOverflow;
}
while (hasOverflowContent)
{
ContinueonPageToPrint continueonPageToPrint = new ContinueonPageToPrint()
{
Width = printPageDescription.PageSize.Width,
Height = printPageDescription.PageSize.Height,
VerticalAlignment = VerticalAlignment.Top
};
printPanel.Children.Add(continueonPageToPrint);
printPanel.InvalidateMeasure();
printPanel.UpdateLayout();
Grid overFlowGrid = new Grid()
{
Width = grid.Width,
Height = grid.Height
};
StackPanel stackPanel = new StackPanel()
{
Height = newsPanel.Height,
Width = newsPanel.Width
};
stackPanel.Children.Add(richTextBlockOverflow);
continueonPageToPrint.PrintableContentViewBox.Child = stackPanel;
continueonPageToPrint.InvalidateMeasure();
continueonPageToPrint.UpdateLayout();
pagesToPrint.Add(continueonPageToPrint);
if (richTextBlockOverflow.HasOverflowContent)
{
hasOverflowContent = true;
var oldRichTextBlockOverflow = richTextBlockOverflow;
richTextBlockOverflow = new RichTextBlockOverflow
{
Height = grid.ActualHeight,
Width = htmlBlock.Width,
VerticalAlignment = VerticalAlignment.Top,
};
oldRichTextBlockOverflow.OverflowContentTarget = richTextBlockOverflow;
}
else
{
hasOverflowContent = false;
}
}
printDocument.SetPreviewPageCount(pagesToPrint.Count, PreviewPageCountType.Final);
}
private void CreateReceiptPages(PrintPageDescription printPageDescription, Reservation reservation, RichTextBlockOverflow previousOverflowElement)
{
FrameworkElement page;
if (previousOverflowElement == null)
{
page = new ReceiptPreviewPage();
}
else
{
page = new ReceiptContinuationPreviewPage(previousOverflowElement);
}
PreparePrintPage(printPageDescription, reservation, page, page);
// Find the last text container and see if the content is overflowing
var overflowContainer = (RichTextBlockOverflow)page.FindName("continuationPageLinkedContainer");
while (overflowContainer.HasOverflowContent)
{
CreateReceiptPages(printPageDescription, reservation, overflowContainer);
}
}
/// <summary>
/// This function creates and adds one print preview page to the internal cache of print preview
/// pages stored in _printPreviewPages.
/// </summary>
/// <param name="lastRTBOAdded">Last RichTextBlockOverflow element added in the current content</param>
/// <param name="printPageDescription">Printer's page description</param>
private static RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription, int count)
{
// XAML element that is used to represent to "printing page"
FrameworkElement page;
// The link container for text overflowing in this page
RichTextBlockOverflow textLink;
// Check if this is the first page ( no previous RichTextBlockOverflow)
if (lastRTBOAdded == null)
{
// If this is the first page add the specific scenario content
page = _firstPage[count];
// Hide headr and footer if not provided
StackPanel header = (StackPanel)page.FindName("Header");
if (!string.IsNullOrEmpty(_headerText))
{
header.Visibility = Visibility.Visible;
TextBlock headerTextBlock = (TextBlock)page.FindName("HeaderTextBlock");
headerTextBlock.Text = _headerText;
}
else
{
header.Visibility = Visibility.Collapsed;
}
StackPanel footer = (StackPanel)page.FindName("Footer");
if (!string.IsNullOrEmpty(_footerText))
{
footer.Visibility = Visibility.Visible;
TextBlock footerTextBlock = (TextBlock)page.FindName("FooterTextBlock");
footerTextBlock.Text = _footerText;
}
else
{
footer.Visibility = Visibility.Collapsed;
}
}
else
{
// Flow content (text) from previous pages
page = new ContinuationPageFormat(lastRTBOAdded,
new FontFamily(EditorSettingsService.EditorFontFamily),
EditorSettingsService.EditorFontSize,
_headerText,
_footerText);
}
// Set "paper" width
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
Grid printableArea = (Grid)page.FindName("PrintableArea");
// Get the margins size
// If the ImageableRect is smaller than the app provided margins use the ImageableRect
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width, printPageDescription.PageSize.Width * _applicationContentMarginLeft * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height, printPageDescription.PageSize.Height * _applicationContentMarginTop * 2);
// Set-up "printable area" on the "paper"
printableArea.Width = _firstPage[count].Width - marginWidth;
printableArea.Height = _firstPage[count].Height - marginHeight;
// Add the (newley created) page to the print canvas which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
PrintCanvas.Children.Add(page);
PrintCanvas.InvalidateMeasure();
PrintCanvas.UpdateLayout();
// Find the last text container and see if the content is overflowing
textLink = (RichTextBlockOverflow)page.FindName("ContinuationPageLinkedContainer");
// Check if this is the last page
if (!textLink.HasOverflowContent && textLink.Visibility == Visibility.Visible)
{
PrintCanvas.UpdateLayout();
}
// Add the page to the page preview collection
_printPreviewPages.Add(page);
return(textLink);
}
protected virtual RichTextBlockOverflow AddOnePrintPreviewPage(RichTextBlockOverflow lastRTBOAdded, PrintPageDescription printPageDescription)
{
// Create a cavase which represents the page
Canvas page = new Canvas();
page.Width = printPageDescription.PageSize.Width;
page.Height = printPageDescription.PageSize.Height;
// Create a grid which contains the actual content to be printed
Grid content = new Grid();
// Get the margins size
// If the ImageableRect is smaller than the app provided margins use the ImageableRect
double marginWidth = Math.Max(printPageDescription.PageSize.Width - printPageDescription.ImageableRect.Width,
printPageDescription.PageSize.Width * ApplicationContentMarginLeft * 2);
double marginHeight = Math.Max(printPageDescription.PageSize.Height - printPageDescription.ImageableRect.Height,
printPageDescription.PageSize.Height * ApplicationContentMarginTop * 2);
// Set content size based on the given margins
content.Width = printPageDescription.PageSize.Width - marginWidth;
content.Height = printPageDescription.PageSize.Height - marginHeight;
// Set content margins
content.SetValue(Canvas.LeftProperty, marginWidth / 2);
content.SetValue(Canvas.TopProperty, marginHeight / 2);
// Add the RowDefinitions to the Grid which is a content to be printed
RowDefinition rowDef = new RowDefinition();
rowDef.Height = new GridLength(0.7, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(0.8, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(2.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(3.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(1.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(0.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(0.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
rowDef = new RowDefinition();
rowDef.Height = new GridLength(0.5, GridUnitType.Star);
content.RowDefinitions.Add(rowDef);
// Add the ColumnDefinitions to the Grid which is a content to be printed
ColumnDefinition colDef = new ColumnDefinition();
colDef.Width = new GridLength(100, GridUnitType.Star);
content.ColumnDefinitions.Add(colDef);
// Create the "Windows 8 SDK Sample" header which consists of an image and text in a stack panel
// and add it to the content grid
//Image windowsLogo = new Image();
//windowsLogo.Source = new BitmapImage(new Uri("ms-appx:///Assets/SmallLogo.png"));
//TextBlock headerText = new TextBlock();
//headerText.TextWrapping = TextWrapping.Wrap;
//headerText.Text = "I Love Notes";
//headerText.FontSize = 20;
//headerText.Foreground = new SolidColorBrush(Colors.Black);
//StackPanel sp = new StackPanel();
//sp.Orientation = Orientation.Horizontal;
//sp.Children.Add(windowsLogo);
//sp.Children.Add(headerText);
StackPanel outerPanel = new StackPanel();
outerPanel.Orientation = Orientation.Vertical;
outerPanel.VerticalAlignment = Windows.UI.Xaml.VerticalAlignment.Top;
//outerPanel.Children.Add(sp);
outerPanel.SetValue(Grid.RowProperty, 1);
TextBlock sampleTitle = new TextBlock();
sampleTitle.TextWrapping = TextWrapping.Wrap;
sampleTitle.Text = _noteForPrinting.NoteBook.Title;
sampleTitle.FontSize = 22;
sampleTitle.FontWeight = FontWeights.Bold;
sampleTitle.Foreground = new SolidColorBrush(Colors.Black);
outerPanel.Children.Add(sampleTitle);
content.Children.Add(outerPanel);
// Create Microsoft image used to end each page and add it to the content grid
Image microsoftLogo = new Image();
microsoftLogo.Source = new BitmapImage(new Uri("ms-appx:///Assets/SmallLogo.png"));
microsoftLogo.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Left;
microsoftLogo.SetValue(Grid.RowProperty, 6);
content.Children.Add(microsoftLogo);
// Add the copywrite notice and add it to the content grid
TextBlock copyrightNotice = new TextBlock();
copyrightNotice.Text = "© 2012 Microsoft. All rights reserved.";
copyrightNotice.FontSize = 16;
copyrightNotice.TextWrapping = TextWrapping.Wrap;
copyrightNotice.Foreground = new SolidColorBrush(Colors.Black);
copyrightNotice.SetValue(Grid.RowProperty, 7);
copyrightNotice.SetValue(Grid.ColumnSpanProperty, 2);
content.Children.Add(copyrightNotice);
// If lastRTBOAdded is null then we know we are creating the first page.
bool isFirstPage = lastRTBOAdded == null;
FrameworkElement previousLTCOnPage = null;
RichTextBlockOverflow rtbo = new RichTextBlockOverflow();
// Create the linked containers and and add them to the content grid
if (isFirstPage)
{
// The first linked container in a chain of linked containers is is always a RichTextBlock
if (ShowText)
{
RichTextBlock rtbl = new RichTextBlock();
rtbl.SetValue(Grid.RowProperty, 2);
rtbl = AddContentToRTBl(rtbl);
int a = rtbl.Blocks.Count();
rtbl.Foreground = new SolidColorBrush(Colors.Black);
content.Children.Add(rtbl);
// Save the RichTextBlock as the last linked container added to this page
previousLTCOnPage = rtbl;
}
if (ShowImage)
{
if (_noteForPrinting.Images.Count > 0)
{
StackPanel imgList = new StackPanel();
if (ShowText)
{
imgList.Orientation = Orientation.Horizontal;
}
else
{
imgList.Orientation = Orientation.Vertical;
}
imgList.SetValue(Grid.RowProperty, 3);
for (var i = 0; i < _noteForPrinting.Images.Count; i++)
{
Image pic = new Image();
pic.Source = new BitmapImage(new Uri(_noteForPrinting.Images[i].ToBaseUrl()));
pic.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Left;
pic.Margin = new Thickness(2);
if (ShowText)
{
pic.Width = pic.Height = 250;
imgList.Children.Add(pic);
//content.RowDefinitions[3].Height = new GridLength(2.5, GridUnitType.Star);
}
else
{
pic.Width = pic.Height = 350;
imgList.Children.Add(pic);
//page.Children.Add(pic);
}
}
if (ShowText)
{
content.Children.Add(imgList);
}
else
{
page.Children.Add(imgList);
}
}
}
if (ShowTags)
{
StringBuilder sb = new StringBuilder();
foreach (var tag in _noteForPrinting.Tags)
{
sb.AppendFormat("[{0}] ", tag);
}
RichTextBlock rtbl = new RichTextBlock();
rtbl.SetValue(Grid.RowProperty, 5);
var run = new Run();
run.Text = sb.ToString();
Paragraph para = new Paragraph();
para.FontSize = 16;
para.Inlines.Add(run);
rtbl.Foreground = new SolidColorBrush(Colors.Black);
rtbl.Blocks.Add(para);
content.Children.Add(rtbl);
}
}
else if (ShowText)
{
// This is not the first page so the first element on this page has to be a
// RichTextBoxOverflow that links to the last RichTextBlockOverflow added to
// the previous page.
rtbo = new RichTextBlockOverflow();
rtbo.SetValue(Grid.RowProperty, 2);
content.Children.Add(rtbo);
// Keep text flowing from the previous page to this page by setting the linked text container just
// created (rtbo) as the OverflowContentTarget for the last linked text container from the previous page
lastRTBOAdded.OverflowContentTarget = rtbo;
// Save the RichTextBlockOverflow as the last linked container added to this page
previousLTCOnPage = rtbo;
}
if (ShowText)
{
// Create the next linked text container for on this page.
rtbo = new RichTextBlockOverflow();
rtbo.SetValue(Grid.RowProperty, 3);
// If this linked container is not on the first page make it span 2 columns.
if (!isFirstPage || !ShowImage)
{
// Add the RichTextBlockOverflow to the content to be printed.
content.Children.Add(rtbo);
}
// Add the new RichTextBlockOverflow to the chain of linked text containers. To do this we much check
// to see if the previous container is a RichTextBlock or RichTextBlockOverflow.
if (previousLTCOnPage is RichTextBlock)
{
((RichTextBlock)previousLTCOnPage).OverflowContentTarget = rtbo;
}
else
{
((RichTextBlockOverflow)previousLTCOnPage).OverflowContentTarget = rtbo;
}
// Save the last linked text container added to the chain
previousLTCOnPage = rtbo;
// Create the next linked text container for on this page.
rtbo = new RichTextBlockOverflow();
rtbo.SetValue(Grid.RowProperty, 4);
content.Children.Add(rtbo);
// Add the new RichTextBlockOverflow to the chain of linked text containers. We don't have to check
// the type of the previous linked container this time because we know it's a RichTextBlockOverflow element
((RichTextBlockOverflow)previousLTCOnPage).OverflowContentTarget = rtbo;
}
// We are done creating the content for this page. Add it to the Canvas which represents the page
page.Children.Add(content);
// Add the newley created page to the printing root which is part of the visual tree and force it to go
// through layout so that the linked containers correctly distribute the content inside them.
//PrintingRoot.Children.Add(page);
//PrintingRoot.InvalidateMeasure();
//PrintingRoot.UpdateLayout();
// Add the newley created page to the list of pages
printPreviewPages.Add(page);
// Return the last linked container added to the page
return(rtbo);
}
