A toolbar is a panel that contains a set of controls, usually represented by small icons. It's purpose is to provide quick access to frequently used commands or options. Within a TQMainWindow the user can drag toolbars within and between the dock areas. Toolbars can also be dragged out of any dock area to float freely as top-level windows.
To use TQToolBar you simply create a TQToolBar as a child of a TQMainWindow, create a number of TQToolButton widgets (or other widgets) in left to right (or top to bottom) order and call addSeparator() when you want a separator. When a toolbar is floated the caption used is the label given in the constructor call. This can be changed with setLabel().
If you create a new widget on an already visible TQToolBar, this widget will automatically become visible without needing a show() call. (This differs from every other TQt widget container. We recommend calling show() anyway since we hope to fix this anomaly in a future release.)
TQToolBars, like QDockWindows, are located in QDockAreas or float as top-level windows. TQMainWindow provides four QDockAreas (top, left, right and bottom). When you create a new toolbar (as in the example above) as a child of a TQMainWindow the toolbar will be added to the top dock area. You can move it to another dock area (or float it) by calling TQMainWindow::moveDockWindow(). QDock areas lay out their windows in Lines.
If the main window is resized so that the area occupied by the toolbar is too small to show all its widgets a little arrow button (which looks like a right-pointing chevron, '»') will appear at the right or bottom of the toolbar depending on its orientation. Clicking this button pops up a menu that shows the 'overflowing' items. TQToolButtons are represented in the menu using their textLabel property, other QButton subclasses are represented using their text property, and QComboBoxes are represented as submenus, with the caption text being used in the submenu item.
Usually a toolbar will get precisely the space it needs. However, with setHorizontalStretchable(), setVerticalStretchable() or setStretchableWidget() you can tell the main window to expand the toolbar to fill all available space in the specified orientation.
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The toolbar arranges its buttons either horizontally or vertically (see orientation() for details). Generally, QDockArea will set the orientation correctly for you, but you can set it yourself with setOrientation() and track any changes by connecting to the orientationChanged() signal.
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You can use the clear() method to remove all items from a toolbar.
The toolbar is called \fIname\fR and is a child of \fIparent\fR and is managed by \fImainWindow\fR. The \fIlabel\fR and \fInewLine\fR parameters are passed straight to TQMainWindow::addDockWindow(). \fIname\fR and the widget flags \fIf\fR are passed on to the QDockWindow constructor.
Constructs an empty toolbar called \fIname\fR, with parent \fIparent\fR, in its \fIparent\fR's top dock area, without any label and without requiring a newline.
The request to stretch might occur because TQMainWindow right-justifies the dock area the toolbar is in, or because this toolbar's isVerticalStretchable() or isHorizontalStretchable() is set to TRUE.
