|
|
#include "barpresenter.h"
|
|
|
#include "bar_p.h"
|
|
|
#include "barlabel_p.h"
|
|
|
#include "barvalue_p.h"
|
|
|
#include "qbarset.h"
|
|
|
#include <QDebug>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
BarPresenter::BarPresenter(QBarChartSeries *series, QGraphicsItem *parent) :
|
|
|
BarPresenterBase(series, parent)
|
|
|
{
|
|
|
mBarDefaultWidth = 15;
|
|
|
}
|
|
|
|
|
|
void BarPresenter::layoutChanged()
|
|
|
{
|
|
|
// Scale bars to new layout
|
|
|
// Layout for bars:
|
|
|
if (mSeries->countSets() <= 0) {
|
|
|
qDebug() << "No sets in model!";
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (childItems().count() == 0) {
|
|
|
qDebug() << "WARNING: BarPresenter::layoutChanged called before graphics items are created!";
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// TODO: better way to auto-layout?
|
|
|
// Use reals for accurancy (we might get some compiler warnings... :)
|
|
|
int categoryCount = mSeries->countCategories();
|
|
|
int setCount = mSeries->countSets();
|
|
|
|
|
|
qreal tW = mWidth;
|
|
|
qreal tH = mHeight;
|
|
|
qreal tM = mSeries->max();
|
|
|
qreal scale = (tH/tM);
|
|
|
qreal tC = categoryCount+1;
|
|
|
qreal xStepPerSet = (tW/tC);
|
|
|
|
|
|
// Scaling.
|
|
|
int itemIndex(0);
|
|
|
int labelIndex(0);
|
|
|
|
|
|
for (int category=0; category < categoryCount; category++) {
|
|
|
qreal xPos = xStepPerSet * category + ((tW + mBarDefaultWidth*setCount)/(categoryCount*2));
|
|
|
qreal yPos = mHeight;
|
|
|
for (int set = 0; set < setCount; set++) {
|
|
|
qreal barHeight = mSeries->valueAt(set,category) * scale;
|
|
|
Bar* bar = mBars.at(itemIndex);
|
|
|
|
|
|
// TODO: width settable per bar?
|
|
|
bar->resize(mBarDefaultWidth, barHeight);
|
|
|
bar->setBrush(mSeries->setAt(set)->brush());
|
|
|
bar->setPos(xPos, yPos-barHeight);
|
|
|
itemIndex++;
|
|
|
xPos += mBarDefaultWidth;
|
|
|
}
|
|
|
|
|
|
// TODO: Layout for labels, remove magic number
|
|
|
xPos = xStepPerSet * category + ((tW + mBarDefaultWidth*setCount)/(categoryCount*2));
|
|
|
BarLabel* label = mLabels.at(labelIndex);
|
|
|
label->setPos(xPos, mHeight + 20);
|
|
|
labelIndex++;
|
|
|
}
|
|
|
|
|
|
// Position floating values
|
|
|
itemIndex = 0;
|
|
|
for (int category=0; category < mSeries->countCategories(); category++) {
|
|
|
qreal xPos = xStepPerSet * category + ((tW + mBarDefaultWidth*setCount)/(categoryCount*2));
|
|
|
qreal yPos = mHeight;
|
|
|
for (int set=0; set < mSeries->countSets(); set++) {
|
|
|
qreal barHeight = mSeries->valueAt(set,category) * scale;
|
|
|
BarValue* value = mFloatingValues.at(itemIndex);
|
|
|
|
|
|
// TODO: remove hard coding, apply layout
|
|
|
value->resize(100,50);
|
|
|
value->setPos(xPos, yPos-barHeight/2);
|
|
|
value->setPen(QPen(QColor(255,255,255,255)));
|
|
|
|
|
|
if (mSeries->valueAt(set,category) != 0) {
|
|
|
value->setValueString(QString::number(mSeries->valueAt(set,category)));
|
|
|
} else {
|
|
|
value->setValueString(QString(""));
|
|
|
}
|
|
|
|
|
|
itemIndex++;
|
|
|
xPos += mBarDefaultWidth;
|
|
|
}
|
|
|
}
|
|
|
mLayoutDirty = true;
|
|
|
}
|
|
|
|
|
|
#include "moc_barpresenter.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
