##// END OF EJS Templates
changing order of series in qmlweather example. This is a workaround to make axis values right. Should not be order dependant, like it is now
changing order of series in qmlweather example. This is a workaround to make axis values right. Should not be order dependant, like it is now

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chartdatetimeaxisy.cpp
135 lines | 3.7 KiB | text/x-c | CppLexer
/ src / axis / datetimeaxis / chartdatetimeaxisy.cpp
Marek Rosa
Added QDateTimeAxis
r1717 /****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "chartdatetimeaxisy_p.h"
#include "chartpresenter_p.h"
#include "qdatetimeaxis.h"
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 #include "chartlayout_p.h"
Marek Rosa
Added QDateTimeAxis
r1717 #include <QGraphicsLayout>
#include <QFontMetrics>
#include <QDateTime>
Michal Klocek
Refactor animator...
r1735 #include <qmath.h>
Marek Rosa
Added QDateTimeAxis
r1717 QTCOMMERCIALCHART_BEGIN_NAMESPACE
Michal Klocek
Refactors internals...
r2273 ChartDateTimeAxisY::ChartDateTimeAxisY(QDateTimeAxis *axis, QGraphicsItem* item)
: VerticalAxis(axis, item),
Jani Honkonen
src folder: another massive victory for coding style police
r2131 m_axis(axis)
Marek Rosa
Added QDateTimeAxis
r1717 {
Michal Klocek
Refactors internals...
r2273 QObject::connect(m_axis,SIGNAL(tickCountChanged(int)),this, SLOT(handleTickCountChanged(int)));
Marek Rosa
Fixed: datetimeaxis not redrawing when datetime format changed
r2326 QObject::connect(m_axis,SIGNAL(formatChanged(QString)),this, SLOT(handleFormatChanged(QString)));
Marek Rosa
Added QDateTimeAxis
r1717 }
ChartDateTimeAxisY::~ChartDateTimeAxisY()
{
}
QVector<qreal> ChartDateTimeAxisY::calculateLayout() const
{
Michal Klocek
Refactors internals...
r2273 int tickCount = m_axis->tickCount();
Q_ASSERT(tickCount >= 2);
Marek Rosa
Added QDateTimeAxis
r1717
QVector<qreal> points;
Michal Klocek
Refactors internals...
r2273 points.resize(tickCount);
Jani Honkonen
src folder: another massive victory for coding style police
r2131 const QRectF &gridRect = gridGeometry();
Michal Klocek
Refactors internals...
r2273 const qreal deltaY = gridRect.height() / (tickCount - 1);
for (int i = 0; i < tickCount; ++i) {
Michal Klocek
Refactors axis updateGeometry handling...
r2111 int y = i * -deltaY + gridRect.bottom();
Marek Rosa
Added QDateTimeAxis
r1717 points[i] = y;
}
return points;
}
void ChartDateTimeAxisY::updateGeometry()
{
const QVector<qreal> &layout = ChartAxis::layout();
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (layout.isEmpty())
return;
Michal Klocek
Refactors internals...
r2273 setLabels(createDateTimeLabels(min(),max(), layout.size(),m_axis->format()));
Michal Klocek
Refactors axis updateGeometry handling...
r2111 VerticalAxis::updateGeometry();
Marek Rosa
Added QDateTimeAxis
r1717 }
Michal Klocek
Refactors internals...
r2273 void ChartDateTimeAxisY::handleTickCountChanged(int tick)
Marek Rosa
Added QDateTimeAxis
r1717 {
Michal Klocek
Refactors internals...
r2273 Q_UNUSED(tick)
Michal Klocek
Fixes more missing update layout calls
r2334 QGraphicsLayoutItem::updateGeometry();
Michal Klocek
Refactors internals...
r2273 if(presenter()) presenter()->layout()->invalidate();
Marek Rosa
Added QDateTimeAxis
r1717 }
Marek Rosa
Fixed: datetimeaxis not redrawing when datetime format changed
r2326 void ChartDateTimeAxisY::handleFormatChanged(const QString &format)
{
Q_UNUSED(format);
Michal Klocek
Fixes more missing update layout calls
r2334 QGraphicsLayoutItem::updateGeometry();
Marek Rosa
Fixed: datetimeaxis not redrawing when datetime format changed
r2326 if(presenter()) presenter()->layout()->invalidate();
}
Jani Honkonen
src folder: another massive victory for coding style police
r2131 QSizeF ChartDateTimeAxisY::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
Michal Klocek
Refactors layout...
r1965 {
Q_UNUSED(constraint)
Michal Klocek
Refactors axis updateGeometry handling...
r2111 QFontMetrics fn(font());
Michal Klocek
Refactors layout...
r1965 QSizeF sh;
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 QSizeF base = VerticalAxis::sizeHint(which, constraint);
Michal Klocek
Refactors internals...
r2273 QStringList ticksList = createDateTimeLabels(min(),max(),m_axis->tickCount(),m_axis->format());
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 qreal width = 0;
qreal height = 0;
Michal Klocek
Refactors layout:...
r2105
Michal Klocek
Change sizeHint of vertical axis, caculate width based on each label
r2336
Michal Klocek
Refactors internals...
r2273 if(ticksList.empty()){
return sh;
}
Michal Klocek
Change sizeHint of vertical axis, caculate width based on each label
r2336 int labelWidth = 0;
foreach(const QString& s, ticksList)
{
labelWidth=qMax(fn.width(s),labelWidth);
}
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 switch (which) {
case Qt::MinimumSize: {
width = fn.boundingRect("...").width() + labelPadding();
width += base.width();
height = fn.height();
height = qMax(height,base.height());
sh = QSizeF(width,height);
break;
Jani Honkonen
astyle and manual coding style fixes for src-folder
r2097 }
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 case Qt::PreferredSize: {
Michal Klocek
Change sizeHint of vertical axis, caculate width based on each label
r2336 width = labelWidth + labelPadding() + 2; //two pixels of tolerance
Michal Klocek
Adds sizeHints for datetimeaxis
r2137 width += base.width();
height = fn.height() * ticksList.count();
height = qMax(height,base.height());
sh = QSizeF(width,height);
break;
}
default:
Jani Honkonen
src folder: another massive victory for coding style police
r2131 break;
}
Michal Klocek
Refactors layout...
r1965
Jani Honkonen
src folder: another massive victory for coding style police
r2131 return sh;
Michal Klocek
Refactors layout...
r1965 }
Marek Rosa
Added QDateTimeAxis
r1717
Michal Klocek
Refactors internals...
r2273 #include "moc_chartdatetimeaxisy_p.cpp"
Marek Rosa
Added QDateTimeAxis
r1717 QTCOMMERCIALCHART_END_NAMESPACE