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Refactored themes; now enabled for line, scatter and pies...
Refactored themes; now enabled for line, scatter and pies Draft themes implemented for most of the series types. The themes are still missing most of the features, only the line color and line width can be defined.
Tero Ahola - - Load All Authors

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r103:399cbfcd557c
r103:399cbfcd557c
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stackedbargroup.cpp
144 lines | 3.4 KiB | text/x-c | CppLexer
/ src / barchart / stackedbargroup.cpp
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percent bar chart
 r101 #include "percentbargroup.h"
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added missing example files :)
 r96 #include "bar.h"
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
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percent bar chart
 r101 PercentBarGroup::PercentBarGroup(PercentBarChartSeries& series, QGraphicsItem *parent) :
Tero Ahola
Refactored themes; now enabled for line, scatter and pies...
 r103 QGraphicsItem(parent)
,mSeries(series)
,mLayoutSet(false)
,mLayoutDirty(true)
,mBarDefaultWidth(20) // TODO: remove hard coding, when we have layout code ready
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added missing example files :)
 r96 {
dataChanged();
}
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 r103 void PercentBarGroup::setPos(const QPointF & pos)
{
qDebug() << "PercentBarGroup::setPos";
// TODO:
}
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 r96
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 r103 void PercentBarGroup::resize(const QSize& size)
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 r96 {
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 r103 qDebug() << "PercentBarGroup::resize";
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 r96 mWidth = size.width();
mHeight = size.height();
layoutChanged();
mLayoutSet = true;
}
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percent bar chart
 r101 void PercentBarGroup::setPlotDomain(const PlotDomain& data)
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 r96 {
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percent bar chart
 r101 qDebug() << "PercentBarGroup::setPlotDomain";
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 r96 // TODO:
}
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 r103 void PercentBarGroup::setTheme(ChartTheme *theme)
{
qDebug() << "PercentBarGroup::setTheme";
// TODO:
}
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percent bar chart
 r101 void PercentBarGroup::setBarWidth( int w )
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 r96 {
mBarDefaultWidth = w;
}
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percent bar chart
 r101 int PercentBarGroup::addColor( QColor color )
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 r96 {
int colorIndex = mColors.count();
mColors.append(color);
return colorIndex;
}
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percent bar chart
 r101 void PercentBarGroup::resetColors()
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 r96 {
mColors.clear();
}
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percent bar chart
 r101 void PercentBarGroup::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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added missing example files :)
 r96 {
if (!mLayoutSet) {
qDebug() << "QBarChart::paint called without layout set. Aborting.";
return;
}
if (mLayoutDirty) {
// Layout or data has changed. Need to redraw.
foreach(QGraphicsItem* i, childItems()) {
i->paint(painter,option,widget);
}
}
}
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percent bar chart
 r101 QRectF PercentBarGroup::boundingRect() const
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 r96 {
return QRectF(0,0,mWidth,mHeight);
}
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percent bar chart
 r101 void PercentBarGroup::dataChanged()
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 r96 {
qDebug() << "QBarChart::dataChanged mSeries";
// Find out maximum and minimum of all series
mMax = mSeries.max();
mMin = mSeries.min();
// Delete old bars
// Is this correct way to delete childItems?
foreach (QGraphicsItem* item, childItems()) {
delete item;
}
// Create new graphic items for bars
int totalItems = mSeries.countTotalItems();
for (int i=0; i<totalItems; i++) {
Bar *bar = new Bar(this);
childItems().append(bar);
}
mLayoutDirty = true;
}
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percent bar chart
 r101 void PercentBarGroup::layoutChanged()
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 r96 {
// Scale bars to new layout
// Layout for bars:
if (mSeries.countRows() <= 0) {
// Nothing to do.
return;
}
// TODO: better way to auto-layout
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bar chart layout fixing
 r99 // Use reals for accurancy (we might get some compiler warnings... :)
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added missing example files :)
 r96 int count = mSeries.countColumns();
int itemIndex(0);
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fixing layout bug on stacked bar chart
 r98 qreal tW = mWidth;
qreal tC = count+1;
qreal xStep = (tW/tC);
qreal xPos = ((tW/tC) + mBarDefaultWidth / 2);
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 r96 for (int column = 0; column < mSeries.countColumns(); column++) {
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percent bar chart
 r101 qreal colSum = mSeries.columnSum(column);
qreal h = mHeight;
qreal scale = (h / colSum);
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fixing layout bug on stacked bar chart
 r98 qreal yPos = h;
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 r96 for (int row=0; row < mSeries.countRows(); row++) {
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 r98 qreal barHeight = mSeries.valueAt(row, column) * scale;
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 r96 Bar* bar = reinterpret_cast<Bar*> (childItems().at(itemIndex));
// TODO: width settable per bar?
bar->resize(mBarDefaultWidth, barHeight);
bar->setColor(mColors.at(row));
bar->setPos(xPos, yPos);
itemIndex++;
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Some fixes to bar charts. Now bars draw almost correctly
 r97 yPos -= barHeight;
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added missing example files :)
 r96 }
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fixing layout bug on stacked bar chart
 r98 xPos += xStep;
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 r96 }
mLayoutDirty = true;
}
QTCOMMERCIALCHART_END_NAMESPACE