OverlayLabelController Class Reference

The OverlayLabelController class controlls appearance of InfoLabelWidget (position, show/hide) on top of some scroll area. More...

Inheritance diagram for OverlayLabelController:

Collaboration diagram for OverlayLabelController:

Public Member Functions
	OverlayLabelController (QObject *parent=0)
void	setArea (QAbstractScrollArea *area)
void	setShown (bool shown)
	Shows/removes a label from the controlled widget. More...
void	setText (const QString &text)

Protected Member Functions
bool	eventFilter (QObject *obj, QEvent *event)

Private Member Functions
void	updateLabelGeometry ()

Private Attributes
QAbstractScrollArea *	m_area
OverlayLabelWidget *	m_label
QString	m_text

Detailed Description

The OverlayLabelController class controlls appearance of InfoLabelWidget (position, show/hide) on top of some scroll area.

Definition at line 27 of file OverlayLabelController.h.

Constructor & Destructor Documentation

OverlayLabelController()

OverlayLabelController::OverlayLabelController

(

QObject *

parent = 0

)

Definition at line 22 of file OverlayLabelController.cpp.

    : QObject(parent), m_label(0), m_area(0)
{
}

Member Function Documentation

eventFilter()

bool OverlayLabelController::eventFilter ( QObject *  obj, QEvent *  event  )

protected

Definition at line 57 of file OverlayLabelController.cpp.

{
    if (event->type() == QEvent::Resize)
        updateLabelGeometry();
 
    return QObject::eventFilter(obj, event);
}

References updateLabelGeometry().

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setArea()

void OverlayLabelController::setArea

(

QAbstractScrollArea *

area

)

Definition at line 32 of file OverlayLabelController.cpp.

{
    m_area = area;
    m_area->installEventFilter(this);
}

References m_area.

Referenced by FitParameterWidget::FitParameterWidget().

setShown()

void OverlayLabelController::setShown

(

bool

shown

)

Shows/removes a label from the controlled widget.

Definition at line 40 of file OverlayLabelController.cpp.

{
    if (shown) {
        ASSERT(m_area);
        if (!m_label) {
            m_label = new OverlayLabelWidget(m_area);
            m_label->setText(m_text);
            updateLabelGeometry();
            m_label->show();
        }
 
    } else {
        delete m_label;
        m_label = 0;
    }
}

References ASSERT, m_area, m_label, m_text, OverlayLabelWidget::setText(), and updateLabelGeometry().

Referenced by FitParameterWidget::updateInfoLabel().

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setText()

void OverlayLabelController::setText

(

const QString &

text

)

Definition at line 27 of file OverlayLabelController.cpp.

{
    m_text = text;
}

References m_text.

Referenced by FitParameterWidget::FitParameterWidget().

updateLabelGeometry()

void OverlayLabelController::updateLabelGeometry ( )

private

Definition at line 65 of file OverlayLabelController.cpp.

{
    if (!m_label || !m_area)
        return;
    m_label->setRectangle(QRect(0, 0, m_area->width(), m_area->height()));
    m_label->setPosition(0, 0);
}

References m_area, m_label, OverlayLabelWidget::setPosition(), and OverlayLabelWidget::setRectangle().

Referenced by eventFilter(), and setShown().

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Member Data Documentation

m_area

QAbstractScrollArea* OverlayLabelController::m_area

private

Definition at line 45 of file OverlayLabelController.h.

Referenced by setArea(), setShown(), and updateLabelGeometry().

m_label

OverlayLabelWidget* OverlayLabelController::m_label

private

Definition at line 44 of file OverlayLabelController.h.

Referenced by setShown(), and updateLabelGeometry().

m_text

QString OverlayLabelController::m_text

private

Definition at line 46 of file OverlayLabelController.h.

Referenced by setShown(), and setText().

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

• /home/www/ba/GUI/coregui/Views/InfoWidgets/OverlayLabelController.h
• /home/www/ba/GUI/coregui/Views/InfoWidgets/OverlayLabelController.cpp