private void PrintPreview_Click(object sender, RoutedEventArgs e)
{
var printdialog = new PrintDialog();
if (printdialog.ShowDialog() != true) { return; }
var doc = new FixedDocument();
doc.DocumentPaginator.PageSize = new Size(printdialog.PrintableAreaWidth, printdialog.PrintableAreaHeight);
var queue = printdialog.PrintQueue;
var caps = queue.GetPrintCapabilities();
var area = caps.PageImageableArea;
var marginwidth = (printdialog.PrintableAreaWidth - caps.PageImageableArea.ExtentWidth) / 2.0;
var marginheight = (printdialog.PrintableAreaHeight - caps.PageImageableArea.ExtentHeight) / 2.0;
double gutter;
if (!Double.TryParse(GutterWidthTextbox.Text, out gutter)) { gutter = 0.25; }
// Translate inches to device independent pixels
gutter *= 96.0;
var opts = new PrintOptions
{
PrintableWidth = area.ExtentWidth,
PrintableHeight = area.ExtentHeight,
MarginWidth = marginwidth,
MarginHeight = marginheight,
Gutter = gutter
};
var category = (CardCategory)DataContext;
category.AddPagesToDocument(doc, opts, category.SelectedCards);
var preview = new PrintPreview();
preview.Document = doc;
preview.ShowDialog();
}
public void AddPagesToDocument(FixedDocument doc, PrintOptions options, IEnumerable<dynamic> cards)
{
// Measure the cards to find out how many fit on a page
var cardui_measure = this.LoadXaml();
var adjustedwidth = options.PrintableWidth + options.Gutter;
var adjustedheight = options.PrintableHeight + options.Gutter;
var cardsperrow = Math.Floor(adjustedwidth / (cardui_measure.Width + options.Gutter));
var rotcardsperrow = Math.Floor(adjustedwidth / (cardui_measure.Height + options.Gutter));
var cardspercol = Math.Floor(adjustedheight / (cardui_measure.Height + options.Gutter));
var rotcardspercol = Math.Floor(adjustedheight / (cardui_measure.Width + options.Gutter));
var cardsperpage = cardsperrow * cardspercol;
var rotcardsperpage = rotcardsperrow * rotcardspercol;
bool shouldrotate = rotcardsperpage > cardsperpage;
var actualcardsperpage = (shouldrotate) ? rotcardsperpage : cardsperpage;
var actualcardsperrow = (shouldrotate) ? rotcardsperrow : cardsperrow;
var actualcardwidth = (shouldrotate) ? cardui_measure.Height : cardui_measure.Width;
var actualcardheight = (shouldrotate) ? cardui_measure.Width : cardui_measure.Height;
var cardsthispage = 0;
FixedPage page = null;
Canvas canvas = null;
// Add the cards to pages.
foreach (var card in cards)
{
uint cardcount;
if (fixedprint)
{
cardcount = printcount;
}
else
{
var carddict = (IDictionary<string, object>)card;
if (!UInt32.TryParse((string)carddict[printcountattribute], out cardcount))
{
cardcount = 1;
}
}
for (uint i = 0; i < cardcount; i++)
{
if (page == null)
{
page = new FixedPage();
canvas = new Canvas();
page.Children.Add(canvas);
}
var cardui = this.LoadXaml();
cardui.DataContext = card;
cardui.Measure(new Size(cardui.Width, cardui.Height));
cardui.Arrange(new Rect(0, 0, cardui.Width, cardui.Height));
if (shouldrotate) { cardui.RenderTransform = new RotateTransform(90); }
var xpos = cardsthispage % ((int)actualcardsperrow);
var ypos = cardsthispage / ((int)actualcardsperrow);
canvas.Children.Add(cardui);
Canvas.SetLeft(cardui, ((actualcardwidth + options.Gutter) * xpos) + options.MarginWidth + ((shouldrotate) ? actualcardwidth : 0.0));
Canvas.SetTop(cardui, ((actualcardheight + options.Gutter) * ypos) + options.MarginHeight);
// If we've reached the max number of cards on this page, close it out.
cardsthispage++;
if (cardsthispage == actualcardsperpage)
{
cardsthispage = 0;
var pagecontent = new PageContent();
pagecontent.Child = page;
doc.Pages.Add(pagecontent);
page = null;
}
}
}
if (page != null)
{
var pagecontent = new PageContent();
pagecontent.Child = page;
doc.Pages.Add(pagecontent);
}
}
