lazarus/components/printers/qt/qtprndialogs.inc
2008-08-20 17:35:32 +00:00

130 lines
3.9 KiB
PHP

{%MainUnit ../printersdlgs.pp}
const
SExecute = 'Execute';
{TODO: WE HAVE PROBLEM WITH QPrintDialog size (second call resizes it
to screen width) if QPrintDialog is
destroyed each time, so that's the reason why we have
QtPrnDlg variable and finalization in PrintersDlgs
This is probably qt 4.3 bug.}
var
QtPrnDlg: QPrintDialogH = nil;
{ TPageSetupDialog }
function TPageSetupDialog.Execute: Boolean;
var
PgDlg: QPageSetupDialogH;
begin
Result := False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count <= 0 then Exit;
PgDlg := QPageSetupDialog_create(QtDefaultPrinter.Handle, nil);
try
Result := QPageSetupDialog_exec(PgDlg) = Ord(QDialogAccepted);
finally
QPageSetupDialog_destroy(PgDlg);
end;
end;
{ TPrinterSetupDialog }
function TPrinterSetupDialog.Execute: Boolean;
var
QtPrnSetupDlg: QPrintDialogH;
begin
Result := False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count <= 0 then Exit;
{This is called by "Properties" button on QPrintDialog,
Maybe we should call same as in TPrintDialog.Execute till
QPrinterInfo class comes in}
raise Printers.EPrinter.Create('TPrinterSetupDialog: no support for Qt 4.3 !');
end;
{ TPrintDialog }
function TPrintDialog.Execute: Boolean;
var
PrnOptions: QAbstractPrintDialogPrintDialogOptions;
Str: WideString;
i: Integer;
begin
Result := False;
if not Assigned(Printer) then Exit;
if Printer.Printers.Count <= 0 then Exit;
if QtPrnDlg = nil then
QtPrnDlg := QPrintDialog_create(QtDefaultPrinter.Handle, nil);
if Title <> '' then
Str := UTF8Decode(Title)
else
Str := UTF8Decode(DefaultTitle);
QWidget_setWindowTitle(QtPrnDlg, @Str);
if (Width > 0) and (Height > 0) then
QWidget_setBaseSize(QtPrnDlg, Width, Height);
{By default, full page printing is disabled. In this case, the origin of
the QPrinter's coordinate system coincides with the top-left corner
of the printable area. If full page printing is enabled, the origin of
the QPrinter's coordinate system coincides with the top-left corner of
the paper itself. In this case, the device metrics will report the
exact same dimensions as indicated by PageSize. It may not be
possible to print on the entire physical page because of the printer's
margins, so the application must account for the margins itself.
We can set this property from QtLCL OsPrinters too.
QtDefaultPrinter.FullPage := True;
THIS IS FIXED IN Qt-4.4, so PageRect returns correct dimensions !}
QAbstractPrintDialog_setMinMax(QtPrnDlg, MinPage, MaxPage);
QAbstractPrintDialog_setFromTo(QtPrnDlg, FromPage, ToPage);
PrnOptions := QAbstractPrintDialogPrintCollateCopies;
if (poPrintToFile in Options) then
PrnOptions := PrnOptions or QAbstractPrintDialogPrintToFile;
if (poSelection in Options) then
PrnOptions := PrnOptions or QAbstractPrintDialogPrintSelection;
if (poPageNums) in Options then
PrnOptions := PrnOptions or QAbstractPrintDialogPrintPageRange;
{this function does not have effect on Darwin}
QAbstractPrintDialog_setEnabledOptions(QtPrnDlg, PrnOptions);
QtDefaultPrinter.numCopies := Copies;
if PrintToFile then
QtDefaultPrinter.OutputFormat := QPrinterPdfFormat;
Result := QPrintDialog_exec(QtPrnDlg) = Ord(QDialogAccepted);
if Result then
begin
Collate := QtDefaultPrinter.Collate;
MinPage := QAbstractPrintDialog_minPage(QtPrnDlg);
MaxPage := QAbstractPrintDialog_maxPage(QtPrnDlg);
FromPage := QtDefaultPrinter.fromPage;
ToPage := QtDefaultPrinter.toPage;
PrintToFile := QtDefaultPrinter.OutputFormat <> QPrinterNativeFormat;
Copies := QtDefaultPrinter.numCopies;
case QtDefaultPrinter.PrintRange of
QPrinterAllPages: PrintRange := prAllPages;
QPrinterSelection: PrintRange := prSelection;
QPrinterPageRange: PrintRange := prPageNums;
else
PrintRange := prCurrentPage;
end;
end;
end;