Hide the extension widget using the QWidget::hide() function, making the application only show the simple search options when it starts. When the user wants to access the advanced search options, the dialog only needs to change the visibility of the extension widget. Qt’s layout management takes care of the dialog’s appearance.
The code of the window widget’s constructor usually looks something like this: Foo::Foo(QWidget* parent) : QWidget(parent) { ui->setupUi(this); } which expands to something like this:, * */ #ifndef CIRCLEBAR_H #define CIRCLEBAR_H #include class CircleBar : public QWidget { Q_OBJECT public: CircleBar( int value = 0, QWidget *parent = 0 ); int value() const; int heightForWidth( int) const; QSize sizeHint() const; public slots: void setValue( int); signals: void valueChanged( int); protected: void paintEvent …
A combination of using QWidget::setSizePolicy () and QBoxLayout::setStretch () (or more likely QBoxLayout::insertWidget (…
int stretch = 0, …)) will allow you to acheive the behaviour you refer to where only certain objects expand to fill available space, while others remain a constant size.
Qt Development General and Desktop [SOLVED] Extending widgets [SOLVED] Extending widgets . This topic has been deleted. Only users with topic management privileges can see it. nitzan. last edited by nitzan . I’m trying to figure out what’s the best way to extend a widget . I want to have a QLabel with a hover behavior, and as it seems from …
A plugin in Qt is a class stored in a shared library that can be loaded by a QPluginLoader at run-time. When you create plugins in Qt , they either extend a Qt application or Qt itself. Writing a plugin that extends Qt itself is achieved by inheriting one of the plugin base classes, reimplementing functions from that class, and adding a macro.
The QtWebKit module makes it possible for developers to extend and combine features found in Qt and WebKit . This hybrid C++ / Web design is becoming popular for a variety of reasons, including the fact that it allows teams to leverage the large community of skilled web developers.
Subclassing QWidget . Many custom widgets are simply a combination of existing widgets , whether they are built-in Qt widgets or other custom widgets such as HexSpinBox.Custom widgets that are built by composing existing widgets can usually be developed in Qt Designer:. Create a new form using the Widget template.
Qt Widgets . Classes to extend Qt GUI with C++ widgets . Framework Add-Ons. Qt is an unbelievably comprehensive framework full of features beyond the essentials all designed to provide you with a truly professional development experience. Active Qt . Classes for applications which use ActiveX and COM.
