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Abstract baseclass for all preview widgets which shall be used via KFileDialog::setPreviewWidget(const KPreviewWidgetBase *). Ownership will be transferred to KFileDialog, so you have to create the preview with "new" and let KFileDialog delete it.
Just derive your custom preview widget from KPreviewWidgetBase and implement all the pure virtual methods. The slot showPreview(const KURL &) is called every time the file selection changes.
| KPreviewWidgetBase (QWidget *parent, const char *name=0)
| KPreviewWidgetBase |
Constructor. Construct the user interface of your preview widget here and pass the KFileDialog this preview widget is going to be used in as the parent.
Parameters:
| parent | The KFileDialog this preview widget is going to be used in |
| void showPreview (const KURL &url)
| showPreview |
[pure virtual slot]
This slot is called everytime the user selects another file in the file dialog. Implement the stuff necessary to reflect the change here.
Parameters:
| url | The URL of the currently selected file. |
| void clearPreview ()
| clearPreview |
[pure virtual slot]
Reimplement this to clear the preview. This is called when e.g. the selection is cleared or when multiple selections exist, or the directory is changed.
| void virtual_hook ( int, void* )
| virtual_hook |
[protected virtual]