The Q3FilePreview class provides file previewing in Q3FileDialog . 更多...
| 头： | #include <Q3FilePreview> |
| Q3FilePreview () | |
| virtual | ~Q3FilePreview () |
| virtual void | previewUrl (const Q3Url & url ) = 0 |
The Q3FilePreview class provides file previewing in Q3FileDialog .
This class is an abstract base class which is used to implement widgets that can display a preview of a file in a Q3FileDialog .
You must derive the preview widget from both QWidget and from this class. Then you must reimplement this class's previewUrl () function, which is called by the file dialog if the preview of a file (specified as a URL) should be shown.
另请参阅 Q3FileDialog::setPreviewMode (), Q3FileDialog::setContentsPreview (), Q3FileDialog::setInfoPreview (), Q3FileDialog::setInfoPreviewEnabled (), Q3FileDialog::setContentsPreviewEnabled ().
构造 Q3FilePreview .
[虚拟]
Q3FilePreview::
~Q3FilePreview
()
Destroys the file preview object.
[pure virtual]
void
Q3FilePreview::
previewUrl
(const
Q3Url
&
url
)
此函数被调用通过 Q3FileDialog if a preview for the url should be shown. Reimplement this function to provide file previewing.