HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/legend/legendscroller.cpp

Fix crash when changing the values to empty model with logarithmic axis...

Fix crash when changing the values to empty model with logarithmic axis One zero or negative value invalidates the whole layout for logarithmic axes, but this wasn't taken into account when replacing the points. Task-number: QTRD-1914 Reviewed-by: Mika Salmela

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r2199:07ffd59c3233


                r2427:b3d485323aa9

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             legendscroller.cpp
        
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             / src / legend / legendscroller.cpp
          
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        sauimone
    
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      /****************************************************************************

      **

      ** Copyright (C) 2012 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 Commercial Charts Add-on.

      **

      ** $QT_BEGIN_LICENSE$

      ** Licensees holding valid Qt Commercial licenses may use this file in

      ** accordance with the Qt Commercial 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

      ** $QT_END_LICENSE$

      **

      ****************************************************************************/

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      #include <QDebug>

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      #include <QGraphicsSceneMouseEvent>

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      #include <QGraphicsScene>

      #include <QLegendMarker>

      #include "qlegendmarker_p.h"

      #include "legendmarkeritem_p.h"

      #include "legendscroller_p.h"

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      QTCOMMERCIALCHART_BEGIN_NAMESPACE

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      LegendScroller::LegendScroller(QChart *chart) : QLegend(chart)

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      {

      }

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      void LegendScroller::setOffset(const QPointF &point)

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      {

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          d_ptr->setOffset(point);

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      }

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      QPointF LegendScroller::offset() const

      {

          return d_ptr->offset();

      }

      void LegendScroller::mousePressEvent(QGraphicsSceneMouseEvent *event)

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      {

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          Scroller::handleMousePressEvent(event);

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      }

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      void LegendScroller::mouseMoveEvent(QGraphicsSceneMouseEvent *event)

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      {

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          Scroller::handleMouseMoveEvent(event);

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      }

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      void LegendScroller::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

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      {

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          Scroller::handleMouseReleaseEvent(event);

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        sauimone
    
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          if (!event->isAccepted()) {

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              QList<QGraphicsItem *> items = scene()->items(event->scenePos());

              foreach (QGraphicsItem *i, items) {

                  if (d_ptr->m_markerHash.contains(i)) {

                      QLegendMarker *marker = d_ptr->m_markerHash.value(i);

                      emit marker->clicked();

                  }

              }

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          event->accept();

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          }

      }

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      #include "moc_legendscroller_p.cpp"

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      QTCOMMERCIALCHART_END_NAMESPACE

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sauimone Legend can now handle clicked and do scrolling	r2183	/****************************************************************************
		**
		** Copyright (C) 2012 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 Commercial Charts Add-on.
		**
		** $QT_BEGIN_LICENSE$
		** Licensees holding valid Qt Commercial licenses may use this file in
		** accordance with the Qt Commercial 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
		** $QT_END_LICENSE$
		**
		****************************************************************************/

sauimone better implementation of mouse event handling in legend	r2197	#include <QDebug>
sauimone Legend can now handle clicked and do scrolling	r2183	#include <QGraphicsSceneMouseEvent>
sauimone better implementation of mouse event handling in legend	r2197	#include <QGraphicsScene>
		#include <QLegendMarker>
		#include "qlegendmarker_p.h"
		#include "legendmarkeritem_p.h"
		#include "legendscroller_p.h"
sauimone Legend can now handle clicked and do scrolling	r2183
		QTCOMMERCIALCHART_BEGIN_NAMESPACE

sauimone moving mouse event handling logic to scroller	r2199	LegendScroller::LegendScroller(QChart *chart) : QLegend(chart)
sauimone Legend can now handle clicked and do scrolling	r2183	{
		}

sauimone better implementation of mouse event handling in legend	r2197	void LegendScroller::setOffset(const QPointF &point)
sauimone Legend can now handle clicked and do scrolling	r2183	{
sauimone better implementation of mouse event handling in legend	r2197	d_ptr->setOffset(point);
sauimone Legend can now handle clicked and do scrolling	r2183	}

sauimone better implementation of mouse event handling in legend	r2197	QPointF LegendScroller::offset() const
		{
		return d_ptr->offset();
		}

		void LegendScroller::mousePressEvent(QGraphicsSceneMouseEvent *event)
sauimone Legend can now handle clicked and do scrolling	r2183	{
sauimone moving mouse event handling logic to scroller	r2199	Scroller::handleMousePressEvent(event);
sauimone Legend can now handle clicked and do scrolling	r2183	}

sauimone better implementation of mouse event handling in legend	r2197	void LegendScroller::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
sauimone Legend can now handle clicked and do scrolling	r2183	{
sauimone moving mouse event handling logic to scroller	r2199	Scroller::handleMouseMoveEvent(event);
sauimone Legend can now handle clicked and do scrolling	r2183	}

sauimone better implementation of mouse event handling in legend	r2197	void LegendScroller::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
sauimone Legend can now handle clicked and do scrolling	r2183	{
sauimone moving mouse event handling logic to scroller	r2199	Scroller::handleMouseReleaseEvent(event);
sauimone Legend can now handle clicked and do scrolling	r2183
sauimone moving mouse event handling logic to scroller	r2199	if (!event->isAccepted()) {
sauimone better implementation of mouse event handling in legend	r2197	QList<QGraphicsItem *> items = scene()->items(event->scenePos());

		foreach (QGraphicsItem *i, items) {
		if (d_ptr->m_markerHash.contains(i)) {
		QLegendMarker *marker = d_ptr->m_markerHash.value(i);
		emit marker->clicked();
		}
		}
sauimone moving mouse event handling logic to scroller	r2199	event->accept();
sauimone Legend can now handle clicked and do scrolling	r2183	}
		}

sauimone better implementation of mouse event handling in legend	r2197
		#include "moc_legendscroller_p.cpp"
sauimone Legend can now handle clicked and do scrolling	r2183	QTCOMMERCIALCHART_END_NAMESPACE