summaryrefslogtreecommitdiffstats
path: root/src/charts/legend/legendlayout_p.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/charts/legend/legendlayout_p.h')
-rw-r--r--src/charts/legend/legendlayout_p.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/charts/legend/legendlayout_p.h b/src/charts/legend/legendlayout_p.h
new file mode 100644
index 00000000..ec96aa31
--- /dev/null
+++ b/src/charts/legend/legendlayout_p.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** 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
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt Enterprise Chart API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef LEGENDLAYOUT_H
+#define LEGENDLAYOUT_H
+#include <QGraphicsLayout>
+#include "qchartglobal.h"
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+class QLegend;
+class LegendMarkerItem;
+
+class LegendLayout : public QGraphicsLayout
+{
+public:
+
+ LegendLayout(QLegend *legend);
+ virtual ~LegendLayout();
+
+ void setGeometry(const QRectF &rect);
+
+ void setOffset(qreal x, qreal y);
+ QPointF offset() const;
+
+ void invalidate();
+protected:
+ QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
+ int count() const { return 0; }
+ QGraphicsLayoutItem *itemAt(int) const { return 0; };
+ void removeAt(int) {};
+
+private:
+ void setAttachedGeometry(const QRectF &rect);
+ void setDettachedGeometry(const QRectF &rect);
+
+ struct LegendWidthStruct {
+ LegendMarkerItem *item;
+ qreal width;
+ };
+ static bool widthLongerThan(const LegendWidthStruct *item1,
+ const LegendWidthStruct *item2);
+
+private:
+ QLegend *m_legend;
+ qreal m_offsetX;
+ qreal m_offsetY;
+ qreal m_minOffsetX;
+ qreal m_minOffsetY;
+ qreal m_maxOffsetX;
+ qreal m_maxOffsetY;
+ qreal m_width;
+ qreal m_height;
+};
+
+QT_CHARTS_END_NAMESPACE
+
+#endif