protected override void OnBeginPrint(PrintEventArgs e)
{
// reset...
_printElements = new ArrayList();
_pageNum = 0;
_printIndex = 0;
// go through the objects in the list and create print elements for each one...
foreach (IPrintable printObject in _printObjects)
{
// create an element...
PrintElement element = new PrintElement(printObject);
_printElements.Add(element);
// tell it to print...
printObject.Print(element);
}
}
public void Print(PrintElement element)
{
element.NewPage();
}
protected override void OnPrintPage(PrintPageEventArgs e)
{
// adjust the page number...
_pageNum++;
// now, render the header element...
float headerHeight = Header.CalculateHeight(this, e.Graphics);
Header.Draw(this, e.MarginBounds.Top, e.Graphics, e.MarginBounds);
// also, we need to calculate the footer height...
// Drawing the footer is a similar deal, except this has to appear at the bottom of the page:
float footerHeight = Footer.CalculateHeight(this, e.Graphics);
Footer.Draw(this, e.MarginBounds.Bottom - footerHeight, e.Graphics, e.MarginBounds);
// now we know the header and footer, we can adjust the page bounds...
Rectangle pageBounds = new Rectangle(e.MarginBounds.Left,
(int)(e.MarginBounds.Top + headerHeight),
e.MarginBounds.Width,
(int)(e.MarginBounds.Height - footerHeight - headerHeight));
float yPos = pageBounds.Top;
// ok, now we need to loop through the elements...
bool morePages = false;
int elementsOnPage = 0;
// registra a largura da página para calcular
// a altura do bloco de impressão
MarginBoundsWidth = e.MarginBounds.Width;
while (_printIndex < _printElements.Count)
{
// get the element...
PrintElement element = (PrintElement)_printElements[_printIndex];
if (element.isNewPage())
{
morePages = true;
_printIndex++;
elementsOnPage++;
break;
}
// how tall is the primitive?
float height = element.CalculateHeight(this, e.Graphics);
// will it fit on the page?
if (yPos + height > pageBounds.Bottom)
{
// we don't want to do this if we're the first thing on the page...
if (elementsOnPage != 0)
{
morePages = true;
break;
}
}
// now draw the element...
element.Draw(this, yPos, e.Graphics, pageBounds);
// move the ypos...
yPos += height;
//yPos = e.Graphics.ClipBounds.Bottom;
// next...
_printIndex++;
elementsOnPage++;
}
// do we have more pages?
e.HasMorePages = morePages;
}
public void Print(PrintElement element)
{
// printa o corpo do relatório
element.AddText(rowsbody);
}