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Add easy way to add progress indicator overlay to a widget

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Adds a way to 'attach' a progress indicator to a parent, so it
automatically keeps itself centered on the parent.
Also adds shortcut methods to BaseTreeView.

Change-Id: I962a9300d89ef5d1e03298d670e0cee781d3a4e5
Reviewed-by: hjk <hjk@theqtcompany.com>
This commit is contained in:
Eike Ziller
2015-01-16 11:59:54 +01:00
parent 7fec1199f3
commit bafdf36f80
4 changed files with 85 additions and 8 deletions
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46
src/libs/utils/progressindicator.cpp
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@@ -29,26 +29,40 @@
****************************************************************************/
#include "progressindicator.h"
#include "qtcassert.h"
#include "stylehelper.h"
#include <QEvent>
#include <QPainter>
#include <QPixmap>
using namespace Utils;
ProgressIndicator::ProgressIndicator(Size size, QWidget *parent)
ProgressIndicator::ProgressIndicator(IndicatorSize size, QWidget *parent)
: QWidget(parent),
m_rotation(0)
{
setAttribute(Qt::WA_TransparentForMouseEvents);
m_timer.setSingleShot(false);
connect(&m_timer, &QTimer::timeout, this, &ProgressIndicator::step);
setIndicatorSize(size);
}
void ProgressIndicator::setIndicatorSize(ProgressIndicator::IndicatorSize size)
{
m_size = size;
m_rotationStep = size == Small ? 45 : 30;
m_timer.setInterval(size == Small ? 100 : 80);
m_pixmap.load(StyleHelper::dpiSpecificImageFile(
size == Small ? QLatin1String(":/utils/images/progressindicator_small.png")
: QLatin1String(":/utils/images/progressindicator_big.png")));
m_timer.setInterval(size == Small ? 100 : 80);
m_timer.setSingleShot(false);
connect(&m_timer, &QTimer::timeout, this, &ProgressIndicator::step);
updateGeometry();
}
ProgressIndicator::IndicatorSize ProgressIndicator::indicatorSize() const
{
return m_size;
}
QSize ProgressIndicator::sizeHint() const
@@ -56,6 +70,16 @@ QSize ProgressIndicator::sizeHint() const
return m_pixmap.size() / m_pixmap.devicePixelRatio();
}
void ProgressIndicator::attachToWidget(QWidget *parent)
{
if (parentWidget())
parentWidget()->removeEventFilter(this);
setParent(parent);
parent->installEventFilter(this);
resizeToParent();
raise();
}
void ProgressIndicator::paintEvent(QPaintEvent *)
{
QPainter p(this);
@@ -82,9 +106,23 @@ void ProgressIndicator::hideEvent(QHideEvent *)
m_timer.stop();
}
bool ProgressIndicator::eventFilter(QObject *obj, QEvent *ev)
{
if (obj == parent() && ev->type() == QEvent::Resize) {
resizeToParent();
}
return QWidget::eventFilter(obj, ev);
}
void ProgressIndicator::step()
{
m_rotation = (m_rotation + m_rotationStep + 360) % 360;
update();
}
void ProgressIndicator::resizeToParent()
{
QTC_ASSERT(parentWidget(), return);
setGeometry(QRect(QPoint(0, 0), parentWidget()->size()));
}