1 files changed, 119 insertions, 0 deletions
diff --git a/src/charts/axis/categoryaxis/chartcategoryaxisy.cpp b/src/charts/axis/categoryaxis/chartcategoryaxisy.cpp
new file mode 100644
index 00000000..7d5ba103
--- /dev/null
+++ b/src/charts/axis/categoryaxis/chartcategoryaxisy.cpp
@@ -0,0 +1,119 @@
+/****************************************************************************
+**
+** 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 "chartcategoryaxisy_p.h"
+#include "qcategoryaxis.h"
+#include "qabstractaxis.h"
+#include "chartpresenter_p.h"
+#include "abstractchartlayout_p.h"
+#include <QGraphicsLayout>
+#include <qmath.h>
+#include <QDebug>
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+ChartCategoryAxisY::ChartCategoryAxisY(QCategoryAxis *axis, QGraphicsItem* item)
+    : VerticalAxis(axis, item, true),
+      m_axis(axis)
+{
+    QObject::connect(axis, SIGNAL(categoriesChanged()), this, SLOT(handleCategoriesChanged()));
+}
+
+ChartCategoryAxisY::~ChartCategoryAxisY()
+{
+}
+
+QVector<qreal> ChartCategoryAxisY::calculateLayout() const
+{
+    int tickCount = m_axis->categoriesLabels().count() + 1;
+    QVector<qreal> points;
+
+    if (tickCount < 2)
+        return points;
+
+    const QRectF &gridRect = gridGeometry();
+    qreal range = max() - min();
+    if (range > 0) {
+        points.resize(tickCount);
+        qreal scale = gridRect.height() / range;
+        for (int i = 0; i < tickCount; ++i) {
+            if (i < tickCount - 1) {
+                qreal y = -(m_axis->startValue(m_axis->categoriesLabels().at(i)) - min()) * scale + gridRect.bottom();
+                points[i] = y;
+            } else {
+                qreal y = -(m_axis->endValue(m_axis->categoriesLabels().at(i - 1)) - min())  * scale + gridRect.bottom();
+                points[i] = y;
+            }
+        }
+    }
+
+    return points;
+}
+
+void ChartCategoryAxisY::updateGeometry()
+{
+    setLabels(m_axis->categoriesLabels() << QString());
+    VerticalAxis::updateGeometry();
+}
+
+QSizeF ChartCategoryAxisY::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+{
+    Q_UNUSED(constraint)
+
+    QSizeF sh;
+    QSizeF base = VerticalAxis::sizeHint(which, constraint);
+    QStringList ticksList = m_axis->categoriesLabels();
+    qreal width = 0;
+    qreal height = 0; // Height is irrelevant for Y axes with interval labels
+
+    switch (which) {
+    case Qt::MinimumSize: {
+        QRectF boundingRect = ChartPresenter::textBoundingRect(axis()->labelsFont(),
+                                                               QStringLiteral("..."),
+                                                               axis()->labelsAngle());
+        width = boundingRect.width() + labelPadding() + base.width() + 1.0;
+        sh = QSizeF(width, height);
+        break;
+    }
+    case Qt::PreferredSize: {
+        qreal labelWidth = 0.0;
+        foreach (const QString& s, ticksList) {
+            QRectF rect = ChartPresenter::textBoundingRect(axis()->labelsFont(), s, axis()->labelsAngle());
+            labelWidth = qMax(rect.width(), labelWidth);
+        }
+        width = labelWidth + labelPadding() + base.width() + 1.0;
+        sh = QSizeF(width, height);
+        break;
+    }
+    default:
+        break;
+    }
+    return sh;
+}
+
+void ChartCategoryAxisY::handleCategoriesChanged()
+{
+    QGraphicsLayoutItem::updateGeometry();
+    presenter()->layout()->invalidate();
+}
+
+#include "moc_chartcategoryaxisy_p.cpp"
+
+QT_CHARTS_END_NAMESPACE