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cleaning up todos
cleaning up todos
sauimone - - Load All Authors

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r2189:4cb139890ac2
r2192:805641b9c3d1
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mouseeventhandler.cpp
106 lines | 2.5 KiB | text/x-c | CppLexer
/ src / legend / mouseeventhandler.cpp
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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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mouseeventhandler_p.h"
#include <QGraphicsSceneMouseEvent>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
MouseEventHandler::MouseEventHandler() :
sauimone
Kinetic scrolling is back for legend
 r2189 m_lastPos(0, 0),
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Legend can now handle clicked and do scrolling
 r2183 m_state(Idle),
m_treshold(10)
{
}
MouseEventHandler::~MouseEventHandler()
{
}
void MouseEventHandler::setMoveTreshold(qreal treshold)
{
m_treshold = treshold;
}
void MouseEventHandler::handleMousePressEvent(QGraphicsSceneMouseEvent* event)
{
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fixed mouse event delta handling
 r2188 m_lastPos = event->screenPos();
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 r2183 m_state = Pressed;
sauimone
added missing event accept/ignore to handler
 r2187 event->accept();
sauimone
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 r2183 }
void MouseEventHandler::handleMouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
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fixed mouse event delta handling
 r2188 QPointF delta = event->screenPos() - m_lastPos;
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 r2183
switch (m_state) {
case Pressed: {
// calculate treshold. If enough, change to move state and send out move deltas.
if (qAbs(delta.x()) > m_treshold || qAbs(delta.y()) > m_treshold) {
m_state = Moved;
sauimone
fixed mouse event delta handling
 r2188 m_lastPos = event->screenPos();
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Legend can now handle clicked and do scrolling
 r2183 mouseMoved(delta);
}
sauimone
added missing event accept/ignore to handler
 r2187 event->accept();
sauimone
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 r2183 break;
}
case Moved: {
sauimone
fixed mouse event delta handling
 r2188 m_lastPos = event->screenPos();
sauimone
Legend can now handle clicked and do scrolling
 r2183 mouseMoved(delta);
sauimone
added missing event accept/ignore to handler
 r2187 event->accept();
sauimone
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 r2183 break;
}
case Idle:
default: {
sauimone
added missing event accept/ignore to handler
 r2187 event->ignore();
sauimone
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 r2183 break;
}
}
}
void MouseEventHandler::handleMouseReleaseEvent(QGraphicsSceneMouseEvent* event)
{
sauimone
fixed mouse event delta handling
 r2188 m_lastPos = event->screenPos();
sauimone
Legend can now handle clicked and do scrolling
 r2183
switch (m_state) {
case Pressed:
{
m_state = Idle;
mouseClicked();
sauimone
added missing event accept/ignore to handler
 r2187 event->accept();
sauimone
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 r2183 break;
}
case Moved:
{
m_state = Idle;
sauimone
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 r2189 mouseReleased(m_lastPos);
sauimone
added missing event accept/ignore to handler
 r2187 event->accept();
sauimone
Legend can now handle clicked and do scrolling
 r2183 break;
}
default:
{
m_state = Idle;
sauimone
added missing event accept/ignore to handler
 r2187 event->ignore();
sauimone
Legend can now handle clicked and do scrolling
 r2183 break;
}
}
}
QTCOMMERCIALCHART_END_NAMESPACE