150 lines
4.9 KiB
C++
150 lines
4.9 KiB
C++
// PartialsSpecgramGraphicsFrameItem class implementation
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//
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// The QGraphicsItem-derived partial frame graphics item in a Spectrogram scene
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//
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// QATSH Copyright 2009 Jean-Philippe MEURET <jpmeuret@free.fr>
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#include <iostream>
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#include <QtGui/QItemSelectionModel>
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#include <QtGui/QPen>
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#include <QtGui/QGraphicsSceneHoverEvent>
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#include "ColorMap.h"
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#include "PartialsSpecgramGraphicsScene.h"
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#include "PartialsSpecgramGraphicsFrameItem.h"
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PartialsSpecgramGraphicsFrameItem::PartialsSpecgramGraphicsFrameItem(qreal t1, qreal f1, qreal t2, qreal f2,
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double ampl, const ColorMap* pcmAmplColorMap,
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int nPartialIndex, int nFrameIndex,
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QGraphicsItem* parent)
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: QGraphicsLineItem(t1, f1, t2, f2, parent), _dAmplitude(ampl),
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_nPartialIndex(nPartialIndex), _nFrameIndex(nFrameIndex), _pcmAmplColorMap(pcmAmplColorMap)
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{
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// Fixme: call setAmplitude ?
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}
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PartialsSpecgramGraphicsFrameItem::~PartialsSpecgramGraphicsFrameItem()
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{
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}
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QPainterPath PartialsSpecgramGraphicsFrameItem::shape() const
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{
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// Re-implement shape for user-friendly item selection
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// (1 pixel height is really too thin to easily click on).
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// As for Qt 4.5.2, seems default shape implementation doesn't work as documented ...
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// that should be just what follows, IIUC.
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QPainterPath qpPath = QGraphicsLineItem::shape();
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qpPath.addRect(boundingRect());
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return qpPath;
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}
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QRectF PartialsSpecgramGraphicsFrameItem::boundingRect() const
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{
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// Re-implement boundingRect for user-friendly item selection
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// (1 pixel height is really too thin to easily click on).
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QRectF qRect = QGraphicsLineItem::boundingRect();
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qRect.setBottom(5.0);
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qRect.setTop(-5.0);
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return qRect;
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}
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double PartialsSpecgramGraphicsFrameItem::amplitude() const
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{
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return _dAmplitude;
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}
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void PartialsSpecgramGraphicsFrameItem::setAmplitude(double dAmpl)
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{
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_dAmplitude = dAmpl;
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setPen(QPen(_pcmAmplColorMap->color(_dAmplitude)));
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}
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int PartialsSpecgramGraphicsFrameItem::partialIndex() const
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{
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return _nPartialIndex;
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}
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void PartialsSpecgramGraphicsFrameItem::setPartialIndex(int nPartialIndex)
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{
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_nPartialIndex = nPartialIndex;
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}
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int PartialsSpecgramGraphicsFrameItem::frameIndex() const
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{
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return _nFrameIndex;
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}
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void PartialsSpecgramGraphicsFrameItem::setFrameIndex(int nFrameIndex)
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{
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_nFrameIndex = nFrameIndex;
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}
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void PartialsSpecgramGraphicsFrameItem::highlight(bool bOn)
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{
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setPen(bOn ? QPen(Qt::white) : QPen(_pcmAmplColorMap->color(_dAmplitude)));
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}
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void PartialsSpecgramGraphicsFrameItem::select(bool bOn)
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{
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//std::cout << "PartialsSpecgramGraphicsFrameItem::select " << bOn << std::endl;
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highlight(bOn);
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setSelected(bOn);
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}
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void PartialsSpecgramGraphicsFrameItem::hoverEnterEvent(QGraphicsSceneHoverEvent* qEvent)
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{
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const QPointF qpMse = qEvent->lastPos();
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const QPointF qpScn = qEvent->lastScenePos();
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//const QPointF qpScr = qEvent->lastScreenPos();
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const QPointF qpPos = scenePos();
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const QRectF qrRect = boundingRect();
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// std::cout << "PartialsSpecgramGraphicsFrameItem::hoverEnterEvent(t="
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// << qpPos.x() << ", f=" << qpPos.y() << ") : "
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// << "mse.t=" << qpMse.x() << ", mse.f=" << qpMse.y()
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// << ", scn.t=" << qpScn.x() << ", scn.f=" << qpScn.y()
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// << ", rec.t=" << qrRect.x() << ", rec.f=" << qrRect.y()
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// << ", rec.dt=" << qrRect.width() << ", rec.df=" << qrRect.height() << std::endl;
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//<< ", scr.t=" << qpScr.x() << ", scr.f=" << qpScr.y() << std::endl;
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highlight(pen().color() != Qt::white);
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//update();
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//QGraphicsLineItem::hoverEnterEvent(qEvent);
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}
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void PartialsSpecgramGraphicsFrameItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* qEvent)
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{
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// std::cout << "PartialsSpecgramGraphicsFrameItem::hoverLeaveEvent : "
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// << "isSelected=" << isSelected() << std::endl;
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highlight(pen().color() != Qt::white);
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//update();
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//GraphicsLineItem::hoverLeaveEvent(qEvent);
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}
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void PartialsSpecgramGraphicsFrameItem::mousePressEvent(QGraphicsSceneMouseEvent* qEvent)
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{
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// std::cout << "PartialsSpecgramGraphicsFrameItem::mousePressEvent : "
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// << "keyMods=" << std::hex << qEvent->modifiers() << std::dec << std::endl;
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//QGraphicsLineItem::mousePressEvent(qEvent); // usefull ?
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PartialsSpecgramGraphicsScene* pScene = static_cast<PartialsSpecgramGraphicsScene*>(scene());
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const Qt::KeyboardModifiers keyMods = qEvent->modifiers();
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QItemSelectionModel::SelectionFlags selCmd;
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if (keyMods & Qt::ControlModifier || keyMods & Qt::ShiftModifier)
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selCmd = QItemSelectionModel::Toggle;
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else
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selCmd = QItemSelectionModel::Clear | QItemSelectionModel::Select;
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pScene->selectPartialFrame(partialIndex(), frameIndex(), selCmd);
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}
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void PartialsSpecgramGraphicsFrameItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* qEvent)
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{
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QGraphicsLineItem::mouseReleaseEvent(qEvent);
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}
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void PartialsSpecgramGraphicsFrameItem::mouseMoveEvent(QGraphicsSceneMouseEvent* qEvent)
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{
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QGraphicsLineItem::mouseMoveEvent(qEvent);
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}
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