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#include "barpresenterbase.h"
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#include "bar_p.h"
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#include "barvalue_p.h"
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#include "barlabel_p.h"
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#include "separator_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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BarPresenterBase::BarPresenterBase(BarChartModel& model, QGraphicsItem *parent)
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: ChartItem(parent)
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,mBarDefaultWidth(20) // TODO: remove hard coding, when we have layout code ready
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,mLayoutSet(false)
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,mLayoutDirty(true)
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,mSeparatorsVisible(false)
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,mModel(model)
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{
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dataChanged();
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}
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void BarPresenterBase::setSeparatorsVisible(bool visible)
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{
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mSeparatorsVisible = visible;
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}
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void BarPresenterBase::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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if (!mLayoutSet) {
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qDebug() << "BarPresenterBase::paint called without layout set. Aborting.";
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return;
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}
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// if (mLayoutDirty) {
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// Layout or data has changed. Need to redraw.
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foreach(QGraphicsItem* i, childItems()) {
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i->paint(painter,option,widget);
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}
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// }
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}
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QRectF BarPresenterBase::boundingRect() const
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{
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return QRectF(0,0,mWidth,mHeight);
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}
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void BarPresenterBase::setBarWidth( int w )
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{
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mBarDefaultWidth = w;
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}
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void BarPresenterBase::dataChanged()
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{
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// TODO: performance optimizations. Do we really need to delete and create items every time data is changed or can we reuse them?
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qDebug() << "datachanged";
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// Delete old bars
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foreach (QGraphicsItem* item, childItems()) {
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delete item;
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}
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mBars.clear();
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mLabels.clear();
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mSeparators.clear();
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mFloatingValues.clear();
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// Create new graphic items for bars
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for (int c=0; c<mModel.countCategories(); c++) {
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for (int s=0; s<mModel.countSets(); s++) {
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QBarSet *set = mModel.setAt(s);
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Bar *bar = new Bar(this);
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childItems().append(bar);
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mBars.append(bar);
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connect(bar,SIGNAL(clicked()),set,SLOT(barClicked()));
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// TODO: should the event be passed to set or not?
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//connect(bar,SIGNAL(hoverEntered(QGraphicsSceneHoverEvent* event)),set,SLOT(barHoverEntered(QGraphicsSceneHoverEvent* event)));
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//connect(bar,SIGNAL(hoverLeaved(QGraphicsSceneHoverEvent* event)),set,SLOT(barHoverLeaved(QGraphicsSceneHoverEvent *event)));
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}
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}
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// Create labels
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int count = mModel.countCategories();
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for (int i=0; i<count; i++) {
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BarLabel* label = new BarLabel(this);
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label->set(mModel.label(i));
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childItems().append(label);
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mLabels.append(label);
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}
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// Create separators
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count = mModel.countCategories() - 1; // There is one less separator than columns
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for (int i=0; i<count; i++) {
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Separator* sep = new Separator(this);
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sep->setColor(QColor(255,0,0,255)); // TODO: color for separations from theme
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childItems().append(sep);
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mSeparators.append(sep);
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}
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// Create floating values
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for (int category=0; category<mModel.countCategories(); category++) {
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for (int s=0; s<mModel.countSets(); s++) {
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QBarSet *set = mModel.setAt(s);
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BarValue *value = new BarValue(*set, this);
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childItems().append(value);
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mFloatingValues.append(value);
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connect(set,SIGNAL(toggleFloatingValues()),value,SLOT(toggleVisible()));
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}
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}
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// TODO: if (autolayout) { layoutChanged() } or something
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mLayoutDirty = true;
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}
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//handlers
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void BarPresenterBase::handleModelChanged(int index)
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{
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// qDebug() << "BarPresenterBase::handleModelChanged" << index;
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dataChanged();
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}
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void BarPresenterBase::handleDomainChanged(const Domain& domain)
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{
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// qDebug() << "BarPresenterBase::handleDomainChanged";
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// TODO: Figure out the use case for this.
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// Affects the size of visible item, so layout is changed.
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// layoutChanged();
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}
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void BarPresenterBase::handleGeometryChanged(const QRectF& rect)
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{
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mWidth = rect.width();
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mHeight = rect.height();
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layoutChanged();
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mLayoutSet = true;
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setPos(rect.topLeft());
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}
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void BarPresenterBase::barHoverEntered(QGraphicsSceneHoverEvent *event)
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{
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//TODO: show tooltip (name of series, where bar belongs...)
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}
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void BarPresenterBase::barHoverLeaved(QGraphicsSceneHoverEvent *event)
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{
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//TODO: hide tooltip (name of series, where bar belongs...)
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}
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#include "moc_barpresenterbase.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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