|
|
#include "bargroup.h"
|
|
|
#include "bar_p.h"
|
|
|
#include "barlabel_p.h"
|
|
|
#include <QDebug>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
BarGroup::BarGroup(BarChartSeries& series, QGraphicsItem *parent) :
|
|
|
BarGroupBase(series,parent)
|
|
|
{
|
|
|
mBarDefaultWidth = 10;
|
|
|
}
|
|
|
|
|
|
void BarGroup::layoutChanged()
|
|
|
{
|
|
|
// Scale bars to new layout
|
|
|
// Layout for bars:
|
|
|
if (mSeries.countRows() <= 0) {
|
|
|
// Nothing to do.
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// TODO: better way to auto-layout?
|
|
|
// Use reals for accurancy (we might get some compiler warnings... :)
|
|
|
int columnCount = mSeries.countColumns();
|
|
|
int rowCount = mSeries.countRows();
|
|
|
|
|
|
qreal tW = mWidth;
|
|
|
qreal tH = mHeight;
|
|
|
qreal tM = mMax;
|
|
|
qreal scale = (tH/tM);
|
|
|
|
|
|
qreal tC = columnCount+1;
|
|
|
qreal xStepPerSeries = (tW/tC);
|
|
|
|
|
|
// Scaling.
|
|
|
int itemIndex(0);
|
|
|
int labelIndex = mSeries.countColumns() * mSeries.countRows();
|
|
|
|
|
|
for (int column=0; column < columnCount; column++) {
|
|
|
qreal xPos = xStepPerSeries * column + ((tW + mBarDefaultWidth*rowCount)/(columnCount*2));
|
|
|
qreal yPos = mHeight;
|
|
|
for (int row = 0; row < rowCount; row++) {
|
|
|
qreal barHeight = mSeries.valueAt(row, column) * scale;
|
|
|
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-barHeight); // item*posStep+startPos + series * mBarDefaultWidth, mHeight);
|
|
|
itemIndex++;
|
|
|
xPos += mBarDefaultWidth;
|
|
|
}
|
|
|
|
|
|
// TODO: Layout for labels, remove magic number
|
|
|
xPos = xStepPerSeries * column + ((tW + mBarDefaultWidth*rowCount)/(columnCount*2));
|
|
|
BarLabel* label = reinterpret_cast<BarLabel*> (childItems().at(labelIndex));
|
|
|
label->setPos(xPos, mHeight + 20);
|
|
|
labelIndex++;
|
|
|
}
|
|
|
|
|
|
mLayoutDirty = true;
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
