public float CalculateHeight()
{
float width = this.DefaultPageSettings.PaperSize.Width;
float headerHeight = 0;
if (Header != null)
{
headerHeight = Header.CalculateHeight(g, Left, width);
}
float yPos = Top + headerHeight;
int calPrintIndex = 0;
while (calPrintIndex < _printElements.Count)
{
PrintElement element = (PrintElement)_printElements[_printIndex];
float height = element.CalculateHeight(g, Left, width);
yPos += height;
calPrintIndex++;
}
float footerHeight = 0;
if (Footer != null)
{
footerHeight = Footer.CalculateHeight(g, Left, width);
}
yPos += footerHeight;
yPos += Top;
return(yPos);
}
public void AddPrintObject(IPrintable printObject)
{
PrintElement element = new PrintElement(printObject);
element.Print(g);
_printElements.Add(element);
}
private void InitEngine(string printerName = null,
PrintElement header = null, PrintElement footer = null, float top = 0, float left = 0, float right = 0)
{
if (!string.IsNullOrEmpty(printerName))
{
this.PrinterSettings.PrinterName = printerName;
}
Header = header;
Footer = footer;
_printIndex = 0;
_printElements = new ArrayList();
g = this.PrinterSettings.CreateMeasurementGraphics();
Top = top;
Left = left;
Right = right;
}
// Print...
public void Print(PrintElement element, Graphics graphics)
{
// tell the engine to draw a header... Arial
Font font = new Font("Arial", 10);
Font headFont = new Font("Arial", 12, FontStyle.Bold);
SizeF sf = graphics.MeasureString("Customer ID", font);
float maxLength = sf.Width;
element.AddMiddleText("Customer", headFont);
// now, draw the data...
element.AddPairText("Customer ID", Id.ToString(), maxLength, font, font);
element.AddPairText("Name", FirstName + " " + LastName, maxLength, font, font);
element.AddPairText("Company", Company, maxLength, font, font);
element.AddPairText("E-mail", Email, maxLength, font, font);
element.AddPairText("Phone", Phone, maxLength, font, font);
// finally, add a blank line...
//element.AddText("", font);
}
protected override void OnPrintPage(PrintPageEventArgs e)
{
float yPos = Top;// +5.9f;
bool morePages = false;
int elementsOnPage = 0;
int printIndex = 0;
while (printIndex < _printObjects.Count)
{
IPrintable printObject = (IPrintable)_printObjects[printIndex];
PrintElement printElement = new PrintElement(printObject);
printElement.Print(null);
printElement.Draw(Left, yPos, Right, e.PageBounds.Width, e.Graphics);
yPos += this.Height;
printIndex++;
elementsOnPage++;
}
e.HasMorePages = morePages;
}
// ShowPreview - show a print preview...
//public void ShowPreview()
//{
// // now, show the print dialog...
// PrintPreviewDialog dialog = new PrintPreviewDialog();
// dialog.Document = this;
// // show the dialog...
// dialog.ShowDialog();
//}
// OnBeginPrint - called when printing starts
//protected override void OnBeginPrint(PrintEventArgs e)
//{
//}
// OnPrintPage - called when printing needs to be done...
protected override void OnPrintPage(PrintPageEventArgs e)
{
//foreach (IPrintable printObject in _printObjects)
//{
// PrintElement element = new PrintElement(printObject);
// _printElements.Add(element);
// element.Print(e.Graphics);
//}
float headerHeight = 0;
if (Header != null)
{
headerHeight = Header.CalculateHeight(e.Graphics, Left, e.PageBounds.Width);
Header.Draw(Left, Top, Right, e.PageBounds.Width, e.Graphics);
}
float yPos = Top + headerHeight;
bool morePages = false;
int elementsOnPage = 0;
while (_printIndex < _printElements.Count)
{
PrintElement element = (PrintElement)_printElements[_printIndex];
float height = element.CalculateHeight(e.Graphics, Left, e.PageBounds.Width);
element.Draw(Left, yPos, Right, e.PageBounds.Width, e.Graphics);
yPos += height;
_printIndex++;
elementsOnPage++;
}
float footerHeight = 0;
if (Footer != null)
{
footerHeight = Footer.CalculateHeight(e.Graphics, Left, e.PageBounds.Width);
Footer.Draw(Left, yPos, Right, e.PageBounds.Width, e.Graphics);
}
e.HasMorePages = morePages;
yPos += footerHeight;
}
public PrintEngine(string printerName, PrintElement header, PrintElement footer, float top, float left, float right)
{
InitEngine(printerName: printerName, header: header, footer: footer, top: top, left: left, right: right);
}
public PrintEngine(PrintElement header, PrintElement footer, float top, float left, float right)
: this(null, header, footer, top, left, right)
{
}
public PrintEngine(PrintElement header, PrintElement footer) : this(header, footer, 0, 0, 0)
{
}
