void QtGradientStopsModel::deleteStops()
{
QList<QtGradientStop *> selected = selectedStops();
QListIterator<QtGradientStop *> itSel(selected);
while (itSel.hasNext()) {
QtGradientStop *stop = itSel.next();
removeStop(stop);
}
QtGradientStop *current = currentStop();
if (current)
removeStop(current);
}
void QtGradientStopsModel::clear()
{
QList<QtGradientStop *> stopsList = stops().values();
QListIterator<QtGradientStop *> it(stopsList);
while (it.hasNext())
removeStop(it.next());
}
QgsVectorGradientColorRampV2Dialog::QgsVectorGradientColorRampV2Dialog( QgsVectorGradientColorRampV2* ramp, QWidget* parent )
: QDialog( parent ), mRamp( ramp )
{
setupUi( this );
connect( btnColor1, SIGNAL( clicked() ), this, SLOT( setColor1() ) );
connect( btnColor2, SIGNAL( clicked() ), this, SLOT( setColor2() ) );
// handle stops
QgsVectorGradientColorRampV2::StopsMap stops = ramp->stops();
groupStops->setChecked( !stops.isEmpty() );
QgsVectorGradientColorRampV2::StopsMap::iterator i;
QList<QTreeWidgetItem *> items;
for ( i = stops.begin(); i != stops.end(); ++i )
{
QStringList lst;
lst << "." << QString::number( i.key()*100, 'f', 0 );
QTreeWidgetItem* item = new QTreeWidgetItem( lst );
setStopColor( item, i.value() );
item->setData( 0, StopOffsetRole, i.key() );
items.append( item );
}
treeStops->insertTopLevelItems( 0, items );
treeStops->resizeColumnToContents( 0 );
treeStops->sortByColumn( 1, Qt::AscendingOrder );
treeStops->setSortingEnabled( true );
connect( groupStops, SIGNAL( toggled( bool ) ), this, SLOT( toggledStops( bool ) ) );
connect( btnAddStop, SIGNAL( clicked() ), this, SLOT( addStop() ) );
connect( btnRemoveStop, SIGNAL( clicked() ), this, SLOT( removeStop() ) );
connect( treeStops, SIGNAL( itemDoubleClicked( QTreeWidgetItem*, int ) ), this, SLOT( stopDoubleClicked( QTreeWidgetItem*, int ) ) );
updatePreview();
}
QgsVectorGradientColorRampV2Dialog::QgsVectorGradientColorRampV2Dialog( QgsVectorGradientColorRampV2* ramp, QWidget* parent )
: QDialog( parent ), mRamp( ramp ), mCurrentItem( 0 )
{
setupUi( this );
#ifdef Q_WS_MAC
setWindowModality( Qt::WindowModal );
#endif
connect( btnColor1, SIGNAL( colorChanged( const QColor& ) ), this, SLOT( setColor1( const QColor& ) ) );
connect( btnColor2, SIGNAL( colorChanged( const QColor& ) ), this, SLOT( setColor2( const QColor& ) ) );
// handle stops
updateStops();
connect( groupStops, SIGNAL( toggled( bool ) ), this, SLOT( toggledStops( bool ) ) );
connect( btnAddStop, SIGNAL( clicked() ), this, SLOT( addStop() ) );
connect( btnRemoveStop, SIGNAL( clicked() ), this, SLOT( removeStop() ) );
connect( treeStops, SIGNAL( itemDoubleClicked( QTreeWidgetItem*, int ) ), this, SLOT( stopDoubleClicked( QTreeWidgetItem*, int ) ) );
// fill type combobox
cboType->blockSignals( true );
cboType->addItem( tr( "Discrete" ) );
cboType->addItem( tr( "Continous" ) );
if ( mRamp->isDiscrete() )
cboType->setCurrentIndex( 0 );
else
cboType->setCurrentIndex( 1 );
cboType->blockSignals( false );
// information button if needed
// QPushButton* button = buttonBox->addButton( tr( "Information" ), QDialogButtonBox::ActionRole );
if ( mRamp->info().isEmpty() )
btnInformation->setEnabled( false );
// else
// connect( button, SIGNAL( pressed() ), this, SLOT( showInformation() ) );
updatePreview();
}
void GradientPreview::mouseReleaseEvent(QMouseEvent *m)
{
qApp->restoreOverrideCursor();
QRect insideRect = QRect(10, 43, width()-20, 13);
if (isEditable)
{
QRect fpo;
if (m->button() == Qt::LeftButton)
{
if ((Mpressed) && (ActStop > 0) && (ActStop != static_cast<int>(StopM.count()-1)) && (outside || !insideRect.contains(m->pos())))
{
onlyselect = false;
fill_gradient.removeStop(ActStop);
ActStop = 0;
repaint();
QList<VColorStop*> cstops = fill_gradient.colorStops();
emit selectedStop(cstops.at(ActStop));
}
if ((m->y() < height()) && (m->y() > 43) && (m->x() > 0) && (m->x() < width()) && (ActStop == -1))
{
QList<VColorStop*> cstops = fill_gradient.colorStops();
double newStop = static_cast<double>((m->x() - 10)) / (static_cast<double>(width())-20);
QColor stopColor = (cstops.count() > 0) ? cstops.at(0)->color : QColor(255, 255, 255);
QString stopName = (cstops.count() > 0) ? cstops.at(0)->name : QString("White");
int stopShade = (cstops.count() > 0) ? cstops.at(0)->shade : 100;
fill_gradient.addStop(stopColor, newStop, 0.5, 1.0, stopName, stopShade);
repaint();
onlyselect = false;
cstops = fill_gradient.colorStops();
for (int yg = 0; yg < static_cast<int>(StopM.count()); ++yg)
{
fpo = QRect(static_cast<int>(StopM[yg])-4, 43, 8, 13);
if (fpo.contains(m->pos()))
{
ActStop = yg;
emit selectedStop(cstops.at(ActStop));
repaint();
break;
}
}
}
}
else if (m->button() == Qt::RightButton)
{
Mpressed = false;
QList<VColorStop*> cstops = fill_gradient.colorStops();
int stop = -1;
for (int yg = 0; yg < static_cast<int>(StopM.count()); ++yg)
{
fpo = QRect(static_cast<int>(StopM[yg])-4, 43, 8, 13);
if (fpo.contains(m->pos()))
{
stop = yg;
break;
}
}
contextStop = stop;
mPos = m->pos();
QMenu *pmen = new QMenu();
setCursor(QCursor(Qt::ArrowCursor));
pmen->addAction( tr("Add Stop"), this, SLOT(addStop()));
if (stop != -1)
pmen->addAction( tr("Remove Stop"), this, SLOT(removeStop()));
pmen->exec(QCursor::pos());
delete pmen;
}
}
Mpressed = false;
if ((!onlyselect) && (ActStop >= 0)){
emit gradientChanged();
QList<VColorStop*> cstops = fill_gradient.colorStops();
emit currStep(cstops.at(ActStop)->rampPoint);
}
}
void QtGradientStopsModel::moveStops(double newPosition)
{
QtGradientStop *current = currentStop();
if (!current)
return;
double newPos = newPosition;
if (newPos > 1)
newPos = 1;
else if (newPos < 0)
newPos = 0;
if (newPos == current->position())
return;
double offset = newPos - current->position();
QtGradientStop *first = firstSelected();
QtGradientStop *last = lastSelected();
if (first && last) { // multiselection
double maxOffset = 1.0 - last->position();
double minOffset = -first->position();
if (offset > maxOffset)
offset = maxOffset;
else if (offset < minOffset)
offset = minOffset;
}
if (offset == 0)
return;
bool forward = (offset > 0) ? false : true;
PositionStopMap stopList;
QList<QtGradientStop *> selected = selectedStops();
QListIterator<QtGradientStop *> it(selected);
while (it.hasNext()) {
QtGradientStop *stop = it.next();
stopList[stop->position()] = stop;
}
stopList[current->position()] = current;
PositionStopMap::ConstIterator itStop = forward ? stopList.constBegin() : stopList.constEnd();
while (itStop != (forward ? stopList.constEnd() : stopList.constBegin())) {
if (!forward)
--itStop;
QtGradientStop *stop = itStop.value();
double pos = stop->position() + offset;
if (pos > 1)
pos = 1;
if (pos < 0)
pos = 0;
if (current == stop)
pos = newPos;
QtGradientStop *oldStop = at(pos);
if (oldStop && !stopList.values().contains(oldStop))
removeStop(oldStop);
moveStop(stop, pos);
if (forward)
++itStop;
}
}
