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This is a base class for scanning dialogs. You can derive from this class and implement your own dialog. An implementation is available in kdegraphics/libkscan.
Application developers that wish to add scanning support to their program
can use the static method KScanDialog::getScanDialog() to get an instance
of the user's preferred scanning dialog.
Typical usage looks like this (e.g. in a slotShowScanDialog() method):
if ( !m_scanDialog ) {
m_scanDialog = KScanDialog::getScanDialog( this, "scandialog" );
if ( !m_scanDialog ) // no scanning support installed?
return;
connect( m_scanDialog, SIGNAL( finalImage( const QImage&, int )),
SLOT( slotScanned( const QImage&, int ) ));
}
if ( m_scanDialog->setup() ) // only if scanner configured/available
m_scanDialog->show();
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This will create and show a non-modal scanning dialog. Connect to more signals if you like.
If you implement an own scan-dialog, you also have to implement a KScanDialogFactory.
| KScanDialog * getScanDialog ( QWidget *parent=0L,
const char *name=0, bool modal=false )
| getScanDialog |
[static]
Returns: the user's preferred scanning dialog, or 0L if no scan-support
is available. Pass a suitable parent widget, if you like. If you
don't you have to 'delete' the returned pointer yourself.
| ~KScanDialog ()
| ~KScanDialog |
| bool setup ()
| setup |
[virtual]
Reimplement this if you need to set up some things, before showing the dialog, e.g. to ask the user for the scanner device to use. If you return false (e.g. there is no device available or the user aborted device selection), the dialog will not be shown.
Returns true by default.
| KScanDialog ( int dialogFace=Tabbed, int buttonMask = Close|Help,
QWidget *parent=0L, const char *name=0, bool modal=false )
| KScanDialog |
[protected]
Constructs the scan dialog. If you implement an own dialog, you can customize it with the usual KDialogBase flags.
See also: KDialogBase
| int id ()
| id |
[protected const]
Returns: the current id for an image. You can use that in your subclass for the signals. The id is used in the signals to let people know which preview and which text-recognition belongs to which scan.
See also: nextId, finalImage, preview, textRecognized
| int nextId ()
| nextId |
[protected]
Returns: the id for the next image. You can use that in your subclass for the signals.
See also: id, finalImage, preview, textRecognized
| void preview ( const QImage&, int id )
| preview |
[signal]
Informs you that an image has been previewed.
| void finalImage ( const QImage&, int id )
| finalImage |
[signal]
Informs you that an image has scanned. id is the same as in the
preview() signal, if this image had been previewed before.
Note, that those id's may not be properly implemented in the current libkscan.
| void textRecognized ( const QString&, int id )
| textRecognized |
[signal]
Informs you that the image with the id id has been run through
text-recognition. The text is in the QString parameter. In the future,
a compound document, using rich text will be used instead.