QStyleOptionToolBar 類

QStyleOptionToolBar 類是用於繪製工具欄的描述參數。更多...

頭：	#include <QStyleOptionToolBar>
qmake:	QT += widgets
Since:	Qt 4.1
繼承：	QStyleOption

該類在 Qt 4.1 引入。

所有成員列錶，包括繼承成員

公共類型

enum	StyleOptionType { Type }
enum	StyleOptionVersion { Version }
enum	ToolBarFeature { None, Movable }
flags	ToolBarFeatures
enum	ToolBarPosition { Beginning, Middle, End, OnlyOne }

公共函數

	QStyleOptionToolBar (const QStyleOptionToolBar & other )
	QStyleOptionToolBar ()

公共變量

QStyleOptionToolBar::ToolBarFeatures	features
int	lineWidth
int	midLineWidth
QStyleOptionToolBar::ToolBarPosition	positionOfLine
QStyleOptionToolBar::ToolBarPosition	positionWithinLine
Qt::ToolBarArea	toolBarArea

詳細描述

QStyleOptionToolBar contains all the information that QStyle 函數需要繪製 QToolBar .

For performance reasons, the access to the member variables is direct (i.e., using the . or -> operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style functions.

The QStyleOptionToolBar class holds the lineWidth 和 midLineWidth for drawing the widget. It also stores information about which area the toolbar should be located in, whether it is movable or not, which position the toolbar line should have ( positionOfLine ), and the toolbar's position within the line ( positionWithinLine ).

In addition, the class provides a couple of enums: The ToolBarFeature enum is used to describe whether a toolbar is movable or not, and the ToolBarPosition enum is used to describe the position of a toolbar line, as well as the toolbar's position within the line.

對於可以如何使用樣式選項的演示範例，見樣式範例。

另請參閱 QStyleOption .

成員類型文檔編製

enum QStyleOptionToolBar:: StyleOptionType

This enum is used to hold information about the type of the style option, and is defined for each QStyleOption 子類。

常量	值	描述
`QStyleOptionToolBar::Type`	`SO_ToolBar`	提供樣式選項的類型 ( SO_ToolBar 對於此類)。

類型內部使用通過 QStyleOption ，其子類，和 qstyleoption_cast () to determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.

另請參閱 StyleOptionVersion .

enum QStyleOptionToolBar:: StyleOptionVersion

This enum is used to hold information about the version of the style option, and is defined for each QStyleOption 子類。

常量	值	描述
`QStyleOptionToolBar::Version`	`1`	1

版本的使用通過 QStyleOption 子類以實現擴展在不破壞兼容性的情況下。若使用 qstyleoption_cast ()，通常不需要校驗它。

另請參閱 StyleOptionType .

enum QStyleOptionToolBar:: ToolBarFeature
flags QStyleOptionToolBar:: ToolBarFeatures

This enum is used to describe whether a toolbar is movable or not.

常量	值	描述
`QStyleOptionToolBar::None`	`0x0`	The toolbar cannot be moved. The default value.
`QStyleOptionToolBar::Movable`	`0x1`	The toolbar is movable, and a handle will appear when holding the cursor over the toolbar's boundary.

The ToolBarFeatures type is a typedef for QFlags <ToolBarFeature>. It stores an OR combination of ToolBarFeature values.

另請參閱 features and QToolBar::isMovable ().

enum QStyleOptionToolBar:: ToolBarPosition

This enum is used to describe the position of a toolbar line, as well as the toolbar's position within the line.

The order of the positions within a line starts at the top of a vertical line, and from the left within a horizontal line. The order of the positions for the lines is always from the parent widget's boundary edges.

常量	值	描述
`QStyleOptionToolBar::Beginning`	`0`	The toolbar is located at the beginning of the line, or the toolbar line is the first of several lines. There can only be one toolbar (and only one line) with this position.
`QStyleOptionToolBar::Middle`	`1`	The toolbar is located in the middle of the line, or the toolbar line is in the middle of several lines. There can several toolbars (and lines) with this position.
`QStyleOptionToolBar::End`	`2`	The toolbar is located at the end of the line, or the toolbar line is the last of several lines. There can only be one toolbar (and only one line) with this position.
`QStyleOptionToolBar::OnlyOne`	`3`	There is only one toolbar or line. This is the default value of the positionOfLine and positionWithinLine 變量。

另請參閱 positionWithinLine and positionOfLine .

成員函數文檔編製

QStyleOptionToolBar:: QStyleOptionToolBar (const QStyleOptionToolBar & other )

構造副本為 other 樣式選項。

QStyleOptionToolBar:: QStyleOptionToolBar ()

Constructs a QStyleOptionToolBar, initializing the members variables to their default values.

成員變量文檔編製

QStyleOptionToolBar::ToolBarFeatures QStyleOptionToolBar:: features

This variable holds whether the toolbar is movable or not.

默認值為 None .

int QStyleOptionToolBar:: lineWidth

This variable holds the line width for drawing the toolbar.

默認值為 0。

int QStyleOptionToolBar:: midLineWidth

This variable holds the mid-line width for drawing the toolbar.

默認值為 0。

QStyleOptionToolBar::ToolBarPosition QStyleOptionToolBar:: positionOfLine

This variable holds the position of the toolbar line.

默認值為 QStyleOptionToolBar::OnlyOne .

QStyleOptionToolBar::ToolBarPosition QStyleOptionToolBar:: positionWithinLine

This variable holds the position of the toolbar within a line.