- The old code used two QPushButtons in a QHBoxLayout to provide
Ok/Cancel buttons. This hard-codes the positions and text (and
icons) of these buttons, instead of adapting to the platform style.
The new code simply uses QDialogButtonBox, which is designed for
this purpose.
- Also, the old code connected the Ok button's clicked() signal to a
custom slot that then called QDialog::accept(). This means that the
code in the custom slot is not executed when the dialog is accepted
by other means (e.g. return press in one of the line edits
("auto-default"), though I'm not sure here).
The new code uses the idiomatic Qt way of overriding
QDialog::accept() instead, and connects the button-box's accepted()
signal to it. This is done in the .ui file, so it already works in
Designer preview.
- Finally, the old code made a manual connection from the Cancel
button to QDialog::reject().
The new code uses the Qt idiom of connecting in the .ui file
directly, using QDialogButtonBox::rejected() as the signal.
Amends
|
||
|---|---|---|
| .. | ||
| books | ||
| cachedtable | ||
| doc | ||
| drilldown | ||
| masterdetail | ||
| querymodel | ||
| relationaltablemodel | ||
| sqlbrowser | ||
| sqlwidgetmapper | ||
| tablemodel | ||
| CMakeLists.txt | ||
| README | ||
| connection.h | ||
| sql.pro | ||
README
Qt provides extensive database interoperability, with support for products from both open source and proprietary vendors. SQL support is integrated with Qt's model/view architecture, making it easier to provide GUI integration for your database applications. Documentation for these examples can be found via the Examples link in the main Qt documentation.