##// END OF EJS Templates
adds Andy's customer request, first call to createDaultAxis scales whole domain (if on common axis)
adds Andy's customer request, first call to createDaultAxis scales whole domain (if on common axis)

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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;
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Refactors internals...
r2273 points.resize(tickCount);
Jani Honkonen
src folder: another massive victory for coding style police
r2131 const QRectF &gridRect = gridGeometry();
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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