bool CanvasPicker::eventFilter(QObject *object, QEvent *e)
{
if (object != (QObject *)plot()->canvas())
return false;
Graph *g = plot();
QList<QwtPlotMarker *> lines = g->linesList();
switch(e->type())
{
case QEvent::MouseButtonPress:
{
const QMouseEvent *me = (const QMouseEvent *)e;
if (!(me->modifiers() & Qt::ShiftModifier))
g->deselect();
emit selectPlot();
bool allAxisDisabled = true;
for (int i=0; i < QwtPlot::axisCnt; i++){
if (g->axisEnabled(i)){
allAxisDisabled = false;
break;
}
}
int dist, point;
g->closestCurve(me->pos().x(), me->pos().y(), dist, point);
if (me->button() == Qt::LeftButton && (g->drawLineActive())){
startLinePoint = me->pos();
return true;
}
if (!g->zoomOn() && selectMarker(me)){
if (me->button() == Qt::RightButton)
emit showMarkerPopupMenu();
return true;
}
if (me->button() == Qt::LeftButton && !g->zoomOn() &&
!g->hasPanningMagnifierEnabled() && !g->activeTool() && !g->selectedCurveLabels()){
QDrag *drag = new QDrag(plot());
QMimeData *mimeData = new QMimeData;
QPoint p = plot()->canvas()->mapToParent(me->pos());
mimeData->setText(QString::number(abs(plot()->x() - p.x())) + ";" +
QString::number(abs(plot()->y() - p.y())));
drag->setMimeData(mimeData);
drag->setPixmap(plot()->multiLayer()->windowIcon().pixmap(16));
drag->exec();
return true;
}
return !(me->modifiers() & Qt::ShiftModifier);
}
break;
case QEvent::MouseButtonDblClick:
{
if (d_editing_marker) {
return d_editing_marker->eventFilter(g->canvas(), e);
} else if (g->selectedMarker()) {
if (lines.contains(g->selectedMarker())){
emit viewLineDialog();
return true;
}
} else if (g->isPiePlot()){
emit showPlotDialog(0);
return true;
} else {
const QMouseEvent *me = (const QMouseEvent *)e;
int dist, point;
QwtPlotItem *c = g->closestCurve(me->pos().x(), me->pos().y(), dist, point);
if (c && dist < 10)
emit showPlotDialog(g->curveIndex(c));
else
emit showPlotDialog(-1);
return true;
}
}
break;
case QEvent::MouseMove:
{
const QMouseEvent *me = (const QMouseEvent *)e;
if (me->state() != Qt::LeftButton)
return true;
QPoint pos = me->pos();
QwtPlotItem *c = g->selectedCurveLabels();
if (c){
if (c->rtti() == QwtPlotItem::Rtti_PlotSpectrogram)
((Spectrogram *)c)->moveLabel(pos);
else
((DataCurve *)c)->moveLabels(pos);
return true;
}
if (plot()->drawLineActive()) {
drawLineMarker(pos, g->drawArrow());
return true;
}
return false;
}
break;
case QEvent::MouseButtonRelease:
{
const QMouseEvent *me = (const QMouseEvent *)e;
if (g->drawLineActive()) {
ApplicationWindow *app = g->multiLayer()->applicationWindow();
if (!app)
return true;
ArrowMarker mrk;
mrk.attach(g);
mrk.setStartPoint(startLinePoint);
mrk.setEndPoint(QPoint(me->x(), me->y()));
mrk.setColor(app->defaultArrowColor);
mrk.setWidth(app->defaultArrowLineWidth);
mrk.setStyle(app->defaultArrowLineStyle);
mrk.setHeadLength(app->defaultArrowHeadLength);
mrk.setHeadAngle(app->defaultArrowHeadAngle);
mrk.fillArrowHead(app->defaultArrowHeadFill);
mrk.drawEndArrow(g->drawArrow());
mrk.drawStartArrow(false);
g->addArrow(&mrk);
g->drawLine(false);
mrk.detach();
g->replot();
return true;
}
return false;
}
break;
case QEvent::KeyPress:
{
int key = ((const QKeyEvent *)e)->key();
QwtPlotMarker *selectedMarker = g->selectedMarker();
if (lines.contains(selectedMarker) &&
(key == Qt::Key_Enter || key == Qt::Key_Return)){
emit viewLineDialog();
return true;
}
}
break;
default:
break;
}
return QObject::eventFilter(object, e);
}
void jsBridge::dragResource(QString hash) {
Resource *res = Resource::fromHash(hash);
if (res == NULL)
return;
QString mime = res->mimeType();
QString fileName = res->getFileName();
QByteArray data = res->getData();
QPixmap pix;
if (res->isImage()) {
pix.loadFromData(data);
} else if (res->isPDF()) {
pix.load(":/img/application-pdf.png");
} else {
pix.load(":/img/application-octet-stream.png");
}
delete res;
if (fileName.isEmpty())
fileName = hash;
if (mime == "application/pdf") {
if (!fileName.endsWith(".pdf", Qt::CaseInsensitive))
fileName += ".pdf";
} else if (mime == "image/jpeg") {
if (!fileName.endsWith(".jpg", Qt::CaseInsensitive) && !fileName.endsWith(".jpeg", Qt::CaseInsensitive))
fileName += ".jpg";
} else if (mime == "image/png") {
if (!fileName.endsWith(".png", Qt::CaseInsensitive))
fileName += ".png";
} else if (mime == "image/gif") {
if (!fileName.endsWith(".gif", Qt::CaseInsensitive))
fileName += ".gif";
}
QString tmpl = QDir::tempPath() + QDir::separator() + fileName;
QFile* f = new QFile(tmpl);
if (!f->open(QIODevice::WriteOnly))
return;
f->write(data);
f->close();
files.enqueue(f);
QTimer::singleShot(60000, this, SLOT(removeTmpFile()));
QDrag *drag = new QDrag(new QWidget());
QMimeData *mimeData = new QMimeData;
QFileInfo fileInfo(tmpl);
QUrl url = QUrl::fromLocalFile(fileInfo.absoluteFilePath());
mimeData->setUrls(QList<QUrl>() << url);
drag->setMimeData(mimeData);
if (!pix.isNull())
drag->setPixmap(pix.scaled(128,128, Qt::KeepAspectRatio, Qt::SmoothTransformation));
drag->exec(Qt::CopyAction | Qt::MoveAction);
}
//mouse has been clicked (creates a mouse event with position event->pos()
void MainWindow::mousePressEvent(QMouseEvent *event)
{
LEDLabel *child = static_cast<LEDLabel*>(childAt(event->pos()));
// What type of object have you pressed?
QString PressedClassName = child->metaObject()->className();
qDebug() << "type: " << PressedClassName;
QString QLabelType = "LEDLabel";
if (!child){
qDebug() << "Got to !Child";
return;}
//Exit if you didn't click a LEDLabel Type. If you press the background
//instead of LED Label, will clear the selected LEDs
else if (PressedClassName != QLabelType)
{
if (ui->actionSelect_Mode->isChecked())
{
clearSelectedLEDs();
}
return;
}
for (int m = 0; m < LEDs.size(); m++)
{
if(LEDs.at(m) == child)
{
setActiveLED(m); // Which #ID LED we pressed
}
}
ui->displayText->setText(QString("Selected LED %1").arg(getActiveLED()));
QPixmap pixmap = *child->pixmap();
//In select mode, any label which we click on will be selected or deselected
if (ui->actionSelect_Mode->isChecked())
{
selectLED(child);
}
// In this mode, will re-order selectedLEDs in accordance to distance.
else if (ui->actionAssign_IDs->isChecked())
{
//User selects 1st LED, and the algorithm
//finds next ones until end of selected group.
qDebug() << "Got Here";
if (selectedLEDs.empty() == false){
for (int i = 0; i < selectedLEDs.size(); i++)
{
if (child == selectedLEDs.at(i))
{
getOrderedLED(child);
}
}
}
}
//In this mode, a drag is started. Code primarily borrowed from "Draggable
//Icons" Qt Example:
//http://doc.qt.io/qt-5/qtwidgets-draganddrop-draggableicons-example.html
else if (ui->actionMove_and_Add_Mode->isChecked())
{
QByteArray itemData;
QDataStream dataStream(&itemData, QIODevice::WriteOnly);
dataStream << pixmap << QPoint(event->pos() - child->pos());
QMimeData *mimeData = new QMimeData;
mimeData->setData("application/x-dnditemdata", itemData);
QDrag *drag = new QDrag(this);
drag->setMimeData(mimeData);
drag->setPixmap(pixmap);
drag->setHotSpot(event->pos() - child->pos());
child->setShade(true);
if (drag->exec(Qt::CopyAction | Qt::MoveAction, Qt::CopyAction) !=
Qt::MoveAction) {
child->show();
child->setPixmap(pixmap);
qDebug() << "didn't work??";
}
}
}