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Add possibility to set reverse values to axes...
Add possibility to set reverse values to axes Added support for reverse axis. This works with line, spline, scatter and area series with cartesian chart. QBarCategoryAxis is not supported, nor different bar series. Change-Id: I60f21372ea9cee7b49918d7d99de24671bdc42c3 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

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polarchartaxis.cpp
124 lines | 3.6 KiB | text/x-c | CppLexer
/ src / charts / axis / polarchartaxis.cpp
Miikka Heikkinen
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r2483 /****************************************************************************
**
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Copyright header changes...
r2776 ** Copyright (C) 2015 The Qt Company Ltd
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r2483 ** All rights reserved.
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r2776 ** For any questions to The Qt Company, please use contact form at http://qt.io
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r2483 **
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Updated license headers...
r2740 ** This file is part of the Qt Charts module.
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r2483 **
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r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
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Copyright header changes...
r2776 ** agreement between you and The Qt Company.
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r2483 **
** If you have questions regarding the use of this file, please use
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Updated license headers...
r2740 ** contact form at http://qt.io
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r2483 **
****************************************************************************/
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Fix include syntax...
r2714 #include <private/polarchartaxis_p.h>
#include <private/qabstractaxis_p.h>
#include <private/chartpresenter_p.h>
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r2483
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r2712 QT_CHARTS_BEGIN_NAMESPACE
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PolarChartAxis::PolarChartAxis(QAbstractAxis *axis, QGraphicsItem *item, bool intervalAxis)
: ChartAxisElement(axis, item, intervalAxis)
{
}
PolarChartAxis::~PolarChartAxis()
{
}
void PolarChartAxis::setGeometry(const QRectF &axis, const QRectF &grid)
{
Q_UNUSED(grid);
setAxisGeometry(axis);
if (isEmpty())
return;
QVector<qreal> layout = calculateLayout();
updateLayout(layout);
}
QRectF PolarChartAxis::gridGeometry() const
{
return QRectF();
}
void PolarChartAxis::updateLayout(QVector<qreal> &layout)
{
int diff = ChartAxisElement::layout().size() - layout.size();
if (animation()) {
switch (presenter()->state()) {
Miikka Heikkinen
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r2504 case ChartPresenter::ZoomInState:
case ChartPresenter::ZoomOutState:
case ChartPresenter::ScrollUpState:
case ChartPresenter::ScrollLeftState:
case ChartPresenter::ScrollDownState:
case ChartPresenter::ScrollRightState:
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r2483 case ChartPresenter::ShowState:
animation()->setAnimationType(AxisAnimation::DefaultAnimation);
break;
}
// Update to "old" geometry before starting animation to avoid incorrectly sized
// axes lingering in wrong position compared to series plot before animation can kick in.
// Note that the position mismatch still exists even with this update, but it will be
// far less ugly.
updateGeometry();
}
if (diff > 0)
deleteItems(diff);
else if (diff < 0)
createItems(-diff);
if (animation()) {
animation()->setValues(ChartAxisElement::layout(), layout);
presenter()->startAnimation(animation());
} else {
setLayout(layout);
updateGeometry();
}
}
bool PolarChartAxis::isEmpty()
{
return !axisGeometry().isValid() || qFuzzyIsNull(min() - max());
}
void PolarChartAxis::deleteItems(int count)
{
QList<QGraphicsItem *> gridLines = gridItems();
QList<QGraphicsItem *> labels = labelItems();
QList<QGraphicsItem *> shades = shadeItems();
QList<QGraphicsItem *> axis = arrowItems();
for (int i = 0; i < count; ++i) {
if (gridItems().size() == 1 || (((gridLines.size() + 1) % 2) && gridLines.size() > 0))
delete(shades.takeLast());
delete(gridLines.takeLast());
delete(labels.takeLast());
delete(axis.takeLast());
}
}
void PolarChartAxis::handleShadesBrushChanged(const QBrush &brush)
{
foreach (QGraphicsItem *item, shadeItems())
static_cast<QGraphicsPathItem *>(item)->setBrush(brush);
}
void PolarChartAxis::handleShadesPenChanged(const QPen &pen)
{
foreach (QGraphicsItem *item, shadeItems())
static_cast<QGraphicsPathItem *>(item)->setPen(pen);
}
#include "moc_polarchartaxis_p.cpp"
Titta Heikkala
Qt Charts project file structure change...
r2712 QT_CHARTS_END_NAMESPACE