##// END OF EJS Templates
updated barchart examples
updated barchart examples

File last commit:

r165:2ff4f264aa68
r170:ff886517a70e
Show More
percentbargroup.cpp
77 lines | 2.4 KiB | text/x-c | CppLexer
/ src / barchart / percentbargroup.cpp
sauimone
percent bar chart
r101 #include "percentbargroup.h"
sauimone
renamed bar.h to bar_p.h
r118 #include "bar_p.h"
sauimone
added labels to barcharts
r114 #include "barlabel_p.h"
sauimone
refactored barcharts. layout to derived classess other funtionality to base class
r126 #include "separator_p.h"
sauimone
percent bar chart
r101 #include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
sauimone
refactored barcharts. layout to derived classess other funtionality to base class
r126 PercentBarGroup::PercentBarGroup(PercentBarChartSeries& series, QGraphicsItem *parent) :
BarGroupBase(series, parent)
sauimone
percent bar chart
r101 {
}
sauimone
fixed naming mixup with percent and stacked groups
r105 void PercentBarGroup::layoutChanged()
sauimone
percent bar chart
r101 {
// Scale bars to new layout
// Layout for bars:
sauimone
model delegate for bar series. updated examples
r161 if (mModel.countRows() <= 0) {
sauimone
percent bar chart
r101 // Nothing to do.
return;
}
sauimone
bug fix in bar charts. Crashed, if layout was set before data. Also integrated to test app.
r165 if (childItems().count() == 0) {
qDebug() << "WARNING: PercentBarGroup::layoutChanged called before graphics items are created!";
return;
}
sauimone
percent bar chart
r101 // TODO: better way to auto-layout
// Use reals for accurancy (we might get some compiler warnings... :)
sauimone
model delegate for bar series. updated examples
r161 int count = mModel.countColumns();
sauimone
percent bar chart
r101 int itemIndex(0);
qreal tW = mWidth;
qreal tC = count+1;
qreal xStep = (tW/tC);
sauimone
added labels to barcharts
r114 qreal xPos = ((tW/tC) - mBarDefaultWidth / 2);
sauimone
model delegate for bar series. updated examples
r161 int labelIndex = mModel.countColumns() * mModel.countRows();
sauimone
percent bar chart
r101
sauimone
model delegate for bar series. updated examples
r161 for (int column = 0; column < mModel.countColumns(); column++) {
qreal colSum = mModel.columnSum(column);
sauimone
fixed naming mixup with percent and stacked groups
r105 qreal h = mHeight;
qreal scale = (h / colSum);
sauimone
percent bar chart
r101 qreal yPos = h;
sauimone
model delegate for bar series. updated examples
r161 for (int row=0; row < mModel.countRows(); row++) {
qreal barHeight = mModel.valueAt(row, column) * scale;
sauimone
percent bar chart
r101 Bar* bar = reinterpret_cast<Bar*> (childItems().at(itemIndex));
// TODO: width settable per bar?
bar->resize(mBarDefaultWidth, barHeight);
bar->setColor(mColors.at(row));
sauimone
theme interface to barcharts. some minor fixes
r113 bar->setPos(xPos, yPos-barHeight);
sauimone
percent bar chart
r101 itemIndex++;
yPos -= barHeight;
}
sauimone
added labels to barcharts
r114
// TODO: Layout for labels, remove magic number
BarLabel* label = reinterpret_cast<BarLabel*> (childItems().at(labelIndex));
label->setPos(xPos, mHeight + 20);
labelIndex++;
sauimone
percent bar chart
r101 xPos += xStep;
}
sauimone
refactored barcharts. layout to derived classess other funtionality to base class
r126
// Position separators
int separatorIndex = labelIndex; // Separators are after labels in childItems(). TODO: better way to store these?
xPos = xStep + xStep/2; // Initial position is between first and second group. ie one and half steps from left.
sauimone
model delegate for bar series. updated examples
r161 for (int s=0; s < mModel.countColumns() - 1; s++) {
sauimone
refactored barcharts. layout to derived classess other funtionality to base class
r126 Separator* sep = reinterpret_cast<Separator*> (childItems().at(separatorIndex));
sep->setPos(xPos,0);
sep->setSize(QSizeF(1,mHeight));
xPos += xStep;
separatorIndex++;
}
sauimone
model delegate for bar series. updated examples
r161
sauimone
percent bar chart
r101 mLayoutDirty = true;
}
QTCOMMERCIALCHART_END_NAMESPACE