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#include "barpresenter_p.h"
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#include "bar_p.h"
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#include "barvalue_p.h"
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#include "qbarset.h"
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#include <QDebug>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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BarPresenter::BarPresenter(QBarSeries *series, QChart *parent) :
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BarPresenterBase(series, parent)
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{
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connect(series, SIGNAL(updatedBars()), this, SLOT(layoutChanged()));
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}
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void BarPresenter::layoutChanged()
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{
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// Scale bars to new layout
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// Layout for bars:
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if (mSeries->barsetCount() <= 0) {
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qDebug() << "No sets in model!";
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return;
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}
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if (childItems().count() == 0) {
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qDebug() << "WARNING: BarPresenter::layoutChanged called before graphics items are created!";
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return;
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}
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// Use temporary qreals for accurancy (we might get some compiler warnings... :)
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int categoryCount = mSeries->categoryCount();
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int setCount = mSeries->barsetCount();
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qreal tW = mWidth;
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qreal tH = mHeight;
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qreal tM = mSeries->max();
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qreal scale = (tH/tM);
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qreal tC = categoryCount + 1;
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qreal categoryWidth = tW/tC;
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mBarWidth = categoryWidth / (setCount+1);
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int itemIndex(0);
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for (int category=0; category < categoryCount; category++) {
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qreal xPos = categoryWidth * category + categoryWidth /2 + mBarWidth/2;
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qreal yPos = mHeight;
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for (int set = 0; set < setCount; set++) {
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qreal barHeight = mSeries->valueAt(set,category) * scale;
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Bar* bar = mBars.at(itemIndex);
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// TODO: width settable per bar?
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bar->resize(mBarWidth, barHeight);
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bar->setBrush(mSeries->barsetAt(set)->brush());
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bar->setPos(xPos, yPos-barHeight);
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itemIndex++;
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xPos += mBarWidth;
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}
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}
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// Position floating values
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itemIndex = 0;
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for (int category=0; category < mSeries->categoryCount(); category++) {
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qreal xPos = categoryWidth * category + categoryWidth/2 + mBarWidth;
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qreal yPos = mHeight;
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for (int set=0; set < mSeries->barsetCount(); set++) {
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qreal barHeight = mSeries->valueAt(set,category) * scale;
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BarValue* value = mFloatingValues.at(itemIndex);
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QBarSet* barSet = mSeries->barsetAt(set);
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value->resize(100,50); // TODO: proper layout for this.
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value->setPos(xPos, yPos-barHeight/2);
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value->setPen(barSet->floatingValuePen());
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if (mSeries->valueAt(set,category) != 0) {
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value->setValueString(QString::number(mSeries->valueAt(set,category)));
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} else {
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value->setValueString(QString(""));
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}
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itemIndex++;
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xPos += mBarWidth;
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}
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}
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update();
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}
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#include "moc_barpresenter_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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