1 files changed, 137 insertions, 0 deletions
diff --git a/src/charts/barchart/vertical/stacked/stackedbarchartitem.cpp b/src/charts/barchart/vertical/stacked/stackedbarchartitem.cpp
new file mode 100644
index 00000000..953bb455
--- /dev/null
+++ b/src/charts/barchart/vertical/stacked/stackedbarchartitem.cpp
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "stackedbarchartitem_p.h"
+#include "bar_p.h"
+#include "qbarset_p.h"
+#include "qabstractbarseries_p.h"
+#include "qbarset.h"
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+StackedBarChartItem::StackedBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) :
+    AbstractBarChartItem(series, item)
+{
+    connect(series, SIGNAL(labelsPositionChanged(QAbstractBarSeries::LabelsPosition)),
+            this, SLOT(handleLabelsPositionChanged()));
+    connect(series, SIGNAL(labelsFormatChanged(QString)), this, SLOT(positionLabels()));
+}
+
+void StackedBarChartItem::initializeLayout()
+{
+    qreal categoryCount = m_series->d_func()->categoryCount();
+    qreal setCount = m_series->count();
+    qreal barWidth = m_series->d_func()->barWidth();
+
+    m_layout.clear();
+    for(int category = 0; category < categoryCount; category++) {
+        for (int set = 0; set < setCount; set++) {
+            QRectF rect;
+            QPointF topLeft;
+            QPointF bottomRight;
+
+            if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) {
+                topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, domain()->minY()), m_validData);
+                bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, domain()->minY()), m_validData);
+            } else {
+                topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, 0), m_validData);
+                bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, 0), m_validData);
+            }
+
+            if (!m_validData)
+                 return;
+
+            rect.setTopLeft(topLeft);
+            rect.setBottomRight(bottomRight);
+            m_layout.append(rect.normalized());
+        }
+    }
+}
+
+QVector<QRectF> StackedBarChartItem::calculateLayout()
+{
+    QVector<QRectF> layout;
+    // Use temporary qreals for accuracy
+    qreal categoryCount = m_series->d_func()->categoryCount();
+    qreal setCount = m_series->count();
+    qreal barWidth = m_series->d_func()->barWidth();
+
+    for(int category = 0; category < categoryCount; category++) {
+        qreal positiveSum = 0;
+        qreal negativeSum = 0;
+        for (int set = 0; set < setCount; set++) {
+            qreal value = m_series->barSets().at(set)->at(category);
+            QRectF rect;
+            QPointF topLeft;
+            QPointF bottomRight;
+            if (value < 0) {
+                bottomRight = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, value + negativeSum), m_validData);
+                if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain)
+                    topLeft = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, set ? negativeSum : domain()->minY()), m_validData);
+                else
+                    topLeft = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, set ? negativeSum : 0), m_validData);
+                negativeSum += value;
+            } else {
+                topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, value + positiveSum), m_validData);
+                if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain)
+                    bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, set ? positiveSum : domain()->minY()), m_validData);
+                else
+                    bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, set ? positiveSum : 0), m_validData);
+                positiveSum += value;
+            }
+
+            rect.setTopLeft(topLeft);
+            rect.setBottomRight(bottomRight);
+            layout.append(rect.normalized());
+        }
+    }
+    return layout;
+}
+
+void StackedBarChartItem::handleLabelsPositionChanged()
+{
+    positionLabels();
+}
+
+void StackedBarChartItem::positionLabels()
+{
+    for (int i = 0; i < m_layout.count(); i++) {
+        QGraphicsTextItem *label = m_labels.at(i);
+        qreal xPos = m_layout.at(i).center().x() - label->boundingRect().center().x();
+        qreal yPos = 0;
+
+        int offset = m_bars.at(i)->pen().width() / 2 + 2;
+        if (m_series->labelsPosition() == QAbstractBarSeries::LabelsCenter)
+            yPos = m_layout.at(i).center().y() - label->boundingRect().center().y();
+        else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsInsideEnd)
+            yPos = m_layout.at(i).top() - offset;
+        else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsInsideBase)
+            yPos = m_layout.at(i).bottom() - label->boundingRect().height() + offset;
+        else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsOutsideEnd)
+            yPos = m_layout.at(i).top() - label->boundingRect().height() + offset;
+
+        label->setPos(xPos, yPos);
+        label->setZValue(zValue() + 1);
+    }
+}
+
+#include "moc_stackedbarchartitem_p.cpp"
+
+QT_CHARTS_END_NAMESPACE