The View menu also provide the option to make the application guess the icon state and mode from an image's file name. You can navigate between the available styles using the View menu. Only the macOS style differs by using 32 pixels instead of 16 pixels for toolbar buttons. The predefined sizes are style dependent, but most of the styles have the same values. The application allows you to manipulate the icon size with some predefined sizes and a spin box. The application provides a sub directory containing sets of images explicitly designed to illustrate how Qt renders an icon in different modes and states. An image can be excluded from this set by checking off the related checkbox. When an image is loaded into the application, it is converted into a pixmap and becomes a part of the set of pixmaps available to the icon. With the Icons application you get a preview of an icon's generated pixmaps reflecting its different states, modes and size.
Such pixmaps are used by Qt widgets to show an icon representing a particular action. You can, for example, use the QIcon's states to display differing pixmaps depending on whether the tool button or menu entry is checked or not.Ī QIcon can generate smaller, larger, active, disabled, and selected pixmaps from the set of pixmaps it is given. When a tool button or menu entry is checked, the QIcon's state is On, otherwise it's Off. The most common usage of QIcon's states are when displaying checkable tool buttons or menu entries (see QAbstractButton::setCheckable() and QAction::setCheckable()). QIcon's states are QIcon::On and QIcon::Off, which will display the pixmap when the widget is in the respective state. Display the pixmap when the user is not interacting with the icon, but the functionality represented by the icon is available.ĭisplay the pixmap when the functionality represented by the icon is available and the user is interacting with the icon, for example, moving the mouse over it or clicking it.ĭisplay the pixmap when the functionality represented by the icon is not available.ĭisplay the pixmap when the icon is selected.
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