qt5base-lts/tests/manual/qscreen/propertywatcher.cpp
Shawn Rutledge 78f946f6dc QScreen manual test improvements: fields resize, better formatting
It's necessary to set the fieldGrowthPolicy on the QFormLayout in order
to have expanding fields on the Mac.  Geometry formatting with
negative x and y values looks better.  Display fewer
decimal digits for double fields.

Change-Id: Icb252c0c3fb7b605253e04c3361beba124570840
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
2012-10-16 17:31:31 +02:00

88 lines
3.4 KiB
C++

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#include "propertywatcher.h"
#include <QMetaProperty>
#include <QFormLayout>
#include <QPushButton>
#include "propertyfield.h"
PropertyWatcher::PropertyWatcher(QObject *subject, QString annotation, QWidget *parent)
: QWidget(parent), m_subject(subject), m_layout(new QFormLayout)
{
setWindowTitle(QString("Properties of %1 %2 %3")
.arg(subject->metaObject()->className()).arg(subject->objectName()).arg(annotation));
setMinimumSize(450, 300);
const QMetaObject* meta = m_subject->metaObject();
for (int i = 0; i < meta->propertyCount(); ++i) {
QMetaProperty prop = meta->property(i);
if (prop.isReadable()) {
PropertyField* field = new PropertyField(m_subject, prop);
m_layout->addRow(prop.name(), field);
}
}
QPushButton *updateButton = new QPushButton("update");
connect(updateButton, &QPushButton::clicked, this, &PropertyWatcher::updateAllFields);
m_layout->addRow("", updateButton);
m_layout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
setLayout(m_layout);
connect(subject, &QObject::destroyed, this, &PropertyWatcher::subjectDestroyed);
}
PropertyWatcher::~PropertyWatcher()
{
}
void PropertyWatcher::updateAllFields()
{
QList<PropertyField *> fields = findChildren<PropertyField*>();
foreach (PropertyField *field, fields)
field->propertyChanged();
emit updatedAllFields(this);
}
void PropertyWatcher::subjectDestroyed()
{
hide();
deleteLater();
}