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Refactoring. Remove duplicated blocks of code.

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--HG--
branch : develop
This commit is contained in:
Roman Telezhynskyi 2018-04-16 13:15:16 +03:00
parent 3a42d9d6ef
commit 29b751b5a2
1 changed files with 27 additions and 28 deletions
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55
src/libs/vwidgets/vmaingraphicsview.cpp
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@ -67,6 +67,29 @@ const int GraphicsViewZoom::updateInterval = 40;
const qreal maxSceneSize = ((20.0 * 1000.0) / 25.4) * PrintDPI; // 20 meters in pixels
namespace
{
int ScrollingSteps(QWheelEvent* wheel_event)
{
SCASSERT(wheel_event != nullptr)
const QPoint numPixels = wheel_event->pixelDelta();
const QPoint numDegrees = wheel_event->angleDelta() / 8;
int numSteps = 0;
if (not numPixels.isNull())
{
numSteps = wheel_event->orientation() == Qt::Vertical ? numPixels.y() : numPixels.x();
}
else if (not numDegrees.isNull())
{
numSteps = (wheel_event->orientation() == Qt::Vertical ? numDegrees.y() : numDegrees.x()) / 15;
}
return numSteps;
}
}
//---------------------------------------------------------------------------------------------------------------------
GraphicsViewZoom::GraphicsViewZoom(QGraphicsView* view)
: QObject(view),
@ -292,21 +315,9 @@ void GraphicsViewZoom::FictiveSceneRect(QGraphicsScene *sc, QGraphicsView *view)
//---------------------------------------------------------------------------------------------------------------------
bool GraphicsViewZoom::StartVerticalScrollings(QWheelEvent *wheel_event)
{
SCASSERT(wheel_event != nullptr)
const int numSteps = ScrollingSteps(wheel_event);
const QPoint numPixels = wheel_event->pixelDelta();
const QPoint numDegrees = wheel_event->angleDelta() / 8;
int numSteps;
if (not numPixels.isNull())
{
numSteps = wheel_event->orientation() == Qt::Vertical ? numPixels.y() : numPixels.x();
}
else if (not numDegrees.isNull())
{
numSteps = (wheel_event->orientation() == Qt::Vertical ? numDegrees.y() : numDegrees.x()) / 15;
}
else
if (numSteps == 0)
{
return true;//Just ignore
}
@ -327,21 +338,9 @@ bool GraphicsViewZoom::StartVerticalScrollings(QWheelEvent *wheel_event)
//---------------------------------------------------------------------------------------------------------------------
bool GraphicsViewZoom::StartHorizontalScrollings(QWheelEvent *wheel_event)
{
SCASSERT(wheel_event != nullptr)
const int numSteps = ScrollingSteps(wheel_event);
const QPoint numPixels = wheel_event->pixelDelta();
const QPoint numDegrees = wheel_event->angleDelta() / 8;
int numSteps;
if (not numPixels.isNull())
{
numSteps = wheel_event->orientation() == Qt::Vertical ? numPixels.y() : numPixels.x();
}
else if (not numDegrees.isNull())
{
numSteps = (wheel_event->orientation() == Qt::Vertical ? numDegrees.y() : numDegrees.x()) / 15;
}
else
if (numSteps == 0)
{
return true;//Just ignore
}