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Diffstat (limited to 'src/charts/legend/legendlayout_p.h')
-rw-r--r-- | src/charts/legend/legendlayout_p.h | 84 |
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 |