Q3ToolBarSeparator Class Reference

Inheritance diagram for Q3ToolBarSeparator:

[legend]Collaboration diagram for Q3ToolBarSeparator:

[legend]List of all members.

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Detailed Description

Definition at line 90 of file q3toolbar.cpp.

Public Slots
void	setOrientation (Qt::Orientation)
Public Member Functions
	Q3ToolBarSeparator (Qt::Orientation, Q3ToolBar *parent, const char *name=0)
QSize	sizeHint () const
Qt::Orientation	orientation () const
Protected Member Functions
void	changeEvent (QEvent *)
void	paintEvent (QPaintEvent *)
Private Attributes
Qt::Orientation	orient

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Constructor & Destructor Documentation

Q3ToolBarSeparator::Q3ToolBarSeparator	(	Qt::Orientation	,
		Q3ToolBar *	parent,
		const char *	name = 0
	)

Definition at line 154 of file q3toolbar.cpp.

References QObject::connect(), QSizePolicy::Minimum, QObject::parent(), setOrientation(), QWidget::setSizePolicy(), SIGNAL, and SLOT.

    : QWidget(parent, name)
{
    connect(parent, SIGNAL(orientationChanged(Qt::Orientation)),
             this, SLOT(setOrientation(Qt::Orientation)));
    setOrientation(o);
    setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum));
}

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Member Function Documentation

QSize Q3ToolBarSeparator::sizeHint

(

)

const [virtual]

Reimplemented from QWidget.

Definition at line 190 of file q3toolbar.cpp.

References getStyleOption(), Qt::Horizontal, orient, QStyle::pixelMetric(), QStyle::PM_ToolBarSeparatorExtent, and QWidget::style().

{
    QStyleOption opt = getStyleOption(this);
    int extent = style()->pixelMetric(QStyle::PM_ToolBarSeparatorExtent, &opt, this);
    if (orient == Qt::Horizontal)
        return QSize(extent, 0);
    else
        return QSize(0, extent);
}

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Qt::Orientation Q3ToolBarSeparator::orientation

(

)

const [inline]

Definition at line 97 of file q3toolbar.cpp.

References orient.

Referenced by getStyleOption().

{ return orient; }

void Q3ToolBarSeparator::setOrientation

(

Qt::Orientation

)

[slot]

Definition at line 166 of file q3toolbar.cpp.

References orient.

Referenced by changeEvent(), and Q3ToolBarSeparator().

{
    orient = o;
}

void Q3ToolBarSeparator::changeEvent

(

QEvent *

ev

)

[protected, virtual]

This event handler can be reimplemented to handle state changes.

The state being changed in this event can be retrieved through event event.

Change events include: QEvent::ToolBarChange, QEvent::ActivationChange, QEvent::EnabledChange, QEvent::FontChange, QEvent::StyleChange, QEvent::PaletteChange, QEvent::WindowTitleChange, QEvent::IconTextChange, QEcvent::ModifiedChange, QEvent::MouseTrackingChange, QEvent::ParentChange, QEvent::WindowStateChange, QEvent::LanguageChange, QEvent::LocaleChange, QEvent::LayoutDirectionChange.

Reimplemented from QWidget.

Definition at line 171 of file q3toolbar.cpp.

References QWidget::changeEvent(), orient, setOrientation(), QEvent::StyleChange, and QEvent::type().

{
    if(ev->type() == QEvent::StyleChange)
        setOrientation(orient);
    QWidget::changeEvent(ev);
}

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void Q3ToolBarSeparator::paintEvent

(

QPaintEvent *

)

[protected, virtual]

This event handler can be reimplemented in a subclass to receive paint events which are passed in the event parameter.

A paint event is a request to repaint all or part of the widget. It can happen as a result of repaint() or update(), or because the widget was obscured and has now been uncovered, or for many other reasons.

Many widgets can simply repaint their entire surface when asked to, but some slow widgets need to optimize by painting only the requested region: QPaintEvent::region(). This speed optimization does not change the result, as painting is clipped to that region during event processing. QListView and QTableView do this, for example.

Qt also tries to speed up painting by merging multiple paint events into one. When update() is called several times or the window system sends several paint events, Qt merges these events into one event with a larger region (see QRegion::united()). repaint() does not permit this optimization, so we suggest using update() whenever possible.

When the paint event occurs, the update region has normally been erased, so that you're painting on the widget's background.

The background can be set using setBackgroundRole() and setPalette().

From Qt 4.0, QWidget automatically double-buffers its painting, so there's no need to write double-buffering code in paintEvent() to avoid flicker.

Note: Under X11 it is possible to toggle the global double buffering by calling qt_x11_set_global_double_buffer(). Example usage:

    ...
    extern void qt_x11_set_global_double_buffer(bool);
    qt_x11_set_global_double_buffer(false);
    ...

See also:

event(), repaint(), update(), QPainter, QPixmap, QPaintEvent, {Analog Clock Example}

Reimplemented from QWidget.

Definition at line 200 of file q3toolbar.cpp.

References QStyle::drawPrimitive(), getStyleOption(), p, QStyle::PE_Q3DockWindowSeparator, and QWidget::style().

{
    QPainter p(this);
    QStyleOption opt = getStyleOption(this);
    style()->drawPrimitive(QStyle::PE_Q3DockWindowSeparator, &opt, &p, this);
}

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Member Data Documentation

Qt::Orientation Q3ToolBarSeparator::orient [private]

Definition at line 105 of file q3toolbar.cpp.

Referenced by changeEvent(), orientation(), setOrientation(), and sizeHint().

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The documentation for this class was generated from the following file:

• src/qt3support/widgets/q3toolbar.cpp

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