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ui: graph zoom buttons

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Added simple zoom buttons to graph
This commit is contained in:
Manuel Dobusch
2017-01-26 16:33:49 +01:00
parent 9583b6bbea
commit cdde712a2c
4 changed files with 101 additions and 30 deletions
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src/lib_gui/qt/view/QtGraphView.cpp
+58
View File
@@ -40,6 +40,10 @@ QtGraphView::QtGraphView(ViewLayout* viewLayout)
, m_refreshFunctor(std::bind(&QtGraphView::doRefreshView, this))
, m_focusInFunctor(std::bind(&QtGraphView::doFocusIn, this, std::placeholders::_1))
, m_focusOutFunctor(std::bind(&QtGraphView::doFocusOut, this, std::placeholders::_1))
, m_zoomInButton()
, m_zoomOutButton()
, m_zoomInButtonSpeed(20.0f)
, m_zoomOutButtonSpeed(-20.0f)
{
}
@@ -68,9 +72,26 @@ void QtGraphView::initView()
view->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
view->viewport()->setCursor(Qt::ArrowCursor);
getView()->setMouseWheelCallback(std::bind(&QtGraphView::onMouseWheelEvent, this, std::placeholders::_1));
widget->layout()->addWidget(view);
m_zoomInButton = new QPushButton(widget);
m_zoomInButton->setObjectName("zoom_in_button");
m_zoomInButton->setText("+");
m_zoomInButton->setGeometry(QRect(5, 5, 25, 25));
m_zoomInButton->setAutoRepeat(true);
m_zoomInButton->setToolTip("Zoom in (Shift + Mousewheel forward)");
connect(m_zoomInButton, SIGNAL(pressed()), this, SLOT(zoomInPressed()));
m_zoomOutButton = new QPushButton(widget);
m_zoomOutButton->setObjectName("zoom_out_button");
m_zoomOutButton->setText("-");
m_zoomOutButton->setGeometry(QRect(5, 34, 25, 25));
m_zoomOutButton->setAutoRepeat(true);
m_zoomOutButton->setToolTip("Zoom out (Shift + Mousewheel back)");
connect(m_zoomOutButton, SIGNAL(pressed()), this, SLOT(zoomOutPressed()));
connect(view, SIGNAL(emptySpaceClicked()), this, SLOT(clickedInEmptySpace()));
m_scrollSpeedChangeListenerHorizontal.setScrollBar(view->horizontalScrollBar());
@@ -147,6 +168,34 @@ void QtGraphView::clickedInEmptySpace()
}
}
void QtGraphView::zoomInPressed()
{
zoom(m_zoomInButtonSpeed);
}
void QtGraphView::zoomOutPressed()
{
zoom(m_zoomOutButtonSpeed);
}
void QtGraphView::onMouseWheelEvent(QWheelEvent* event)
{
bool zoomDefault = ApplicationSettings::getInstance()->getControlsGraphZoomOnMouseWheel();
bool shiftPressed = event->modifiers() == Qt::ShiftModifier;
if (zoomDefault != shiftPressed)
{
if (event->delta() != 0.0f)
{
zoom(event->delta());
}
}
else
{
// QGraphicsView::wheelEvent(event);
}
}
void QtGraphView::switchToNewGraphData()
{
m_oldGraph = m_graph;
@@ -723,3 +772,12 @@ void QtGraphView::doFocusOut(const std::vector<Id>& tokenIds)
}
}
}
void QtGraphView::zoom(const float delta)
{
QtGraphicsView* view = getView();
if (view != NULL)
{
view->updateZoom(delta);
}
}