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drag of selection zones
drag of selection zones
trabillard - - Load All Authors

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r1087:d404ba4b75e5
r1087:d404ba4b75e5
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VisualizationSelectionZoneItem.cpp
272 lines | 9.0 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationSelectionZoneItem.cpp
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trabillard
Display of selection zones on a graph
 r1084 #include "Visualization/VisualizationSelectionZoneItem.h"
struct VisualizationSelectionZoneItem::VisualizationSelectionZoneItemPrivate {
QCustomPlot *m_Plot;
double m_T1 = 0;
double m_T2 = 0;
QColor m_Color;
bool m_IsEditionEnabled = true;
double m_MovedOrinalT1 = 0;
double m_MovedOrinalT2 = 0;
QCPItemStraightLine *m_LeftLine;
QCPItemStraightLine *m_RightLine;
QCPItemText *m_NameLabelItem = nullptr;
enum class EditionMode { NoEdition, ResizeLeft, ResizeRight, Move };
EditionMode m_CurrentEditionMode;
VisualizationSelectionZoneItemPrivate(QCustomPlot *plot)
: m_Plot(plot), m_Color(Qt::blue), m_CurrentEditionMode(EditionMode::NoEdition)
{
}
void updatePosition(VisualizationSelectionZoneItem *item)
{
item->topLeft->setCoords(m_T1, 0);
item->bottomRight->setCoords(m_T2, 1);
}
EditionMode getEditionMode(const QPoint &pos, const VisualizationSelectionZoneItem *zoneItem)
{
auto distanceLeft = m_LeftLine->selectTest(pos, false);
auto distanceRight = m_RightLine->selectTest(pos, false);
trabillard
drag of selection zones
 r1087 auto distance = zoneItem->selectTest(pos, false);
trabillard
Display of selection zones on a graph
 r1084
if (distanceRight <= distance) {
return VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight;
}
else if (distanceLeft <= distance) {
return VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft;
}
return VisualizationSelectionZoneItemPrivate::EditionMode::Move;
}
};
VisualizationSelectionZoneItem::VisualizationSelectionZoneItem(QCustomPlot *plot)
: QCPItemRect(plot),
impl{spimpl::make_unique_impl<VisualizationSelectionZoneItemPrivate>(plot)}
{
topLeft->setTypeX(QCPItemPosition::ptPlotCoords);
topLeft->setTypeY(QCPItemPosition::ptAxisRectRatio);
bottomRight->setTypeX(QCPItemPosition::ptPlotCoords);
bottomRight->setTypeY(QCPItemPosition::ptAxisRectRatio);
impl->m_RightLine = new QCPItemStraightLine(plot);
impl->m_RightLine->point1->setParentAnchor(topRight);
impl->m_RightLine->point2->setParentAnchor(bottomRight);
impl->m_RightLine->point1->setTypeX(QCPItemPosition::ptAbsolute);
impl->m_RightLine->point1->setTypeY(QCPItemPosition::ptAbsolute);
impl->m_RightLine->point2->setTypeX(QCPItemPosition::ptAbsolute);
impl->m_RightLine->point2->setTypeY(QCPItemPosition::ptAbsolute);
impl->m_LeftLine = new QCPItemStraightLine(plot);
impl->m_LeftLine->point1->setParentAnchor(topLeft);
impl->m_LeftLine->point2->setParentAnchor(bottomLeft);
impl->m_LeftLine->point1->setTypeX(QCPItemPosition::ptAbsolute);
impl->m_LeftLine->point1->setTypeY(QCPItemPosition::ptAbsolute);
impl->m_LeftLine->point2->setTypeX(QCPItemPosition::ptAbsolute);
impl->m_LeftLine->point2->setTypeY(QCPItemPosition::ptAbsolute);
impl->m_RightLine->setSelectable(false);
impl->m_LeftLine->setSelectable(false);
// connect(this, &VisualizationSelectionZoneItem::selectionChanged, impl->m_RightLine,
// &QCPItemStraightLine::setSelected);
// connect(this, &VisualizationSelectionZoneItem::selectionChanged, impl->m_LeftLine,
// &QCPItemStraightLine::setSelected);
setColor(QColor("#E79D41"));
}
VisualizationSelectionZoneItem::~VisualizationSelectionZoneItem()
{
impl->m_Plot->removeItem(impl->m_RightLine);
impl->m_Plot->removeItem(impl->m_LeftLine);
}
void VisualizationSelectionZoneItem::setName(const QString &name)
{
if (name.isEmpty() && impl->m_NameLabelItem) {
impl->m_Plot->removeItem(impl->m_NameLabelItem);
impl->m_NameLabelItem = nullptr;
}
else if (!impl->m_NameLabelItem) {
impl->m_NameLabelItem = new QCPItemText(impl->m_Plot);
impl->m_NameLabelItem->setText(name);
impl->m_NameLabelItem->setPositionAlignment(Qt::AlignHCenter | Qt::AlignTop);
impl->m_NameLabelItem->setColor(impl->m_Color);
impl->m_NameLabelItem->position->setParentAnchor(top);
}
}
QString VisualizationSelectionZoneItem::name() const
{
if (!impl->m_NameLabelItem) {
return QString();
}
return impl->m_NameLabelItem->text();
}
SqpRange VisualizationSelectionZoneItem::range() const
{
SqpRange range;
range.m_TStart = impl->m_T1 <= impl->m_T2 ? impl->m_T1 : impl->m_T2;
range.m_TEnd = impl->m_T1 > impl->m_T2 ? impl->m_T1 : impl->m_T2;
return range;
}
void VisualizationSelectionZoneItem::setRange(double tstart, double tend)
{
impl->m_T1 = tstart;
impl->m_T2 = tend;
impl->updatePosition(this);
}
void VisualizationSelectionZoneItem::setStart(double tstart)
{
impl->m_T1 = tstart;
impl->updatePosition(this);
}
void VisualizationSelectionZoneItem::setEnd(double tend)
{
impl->m_T2 = tend;
impl->updatePosition(this);
}
void VisualizationSelectionZoneItem::setColor(const QColor &color)
{
impl->m_Color = color;
auto brushColor = color;
brushColor.setAlpha(40);
setBrush(QBrush(brushColor));
setPen(QPen(Qt::NoPen));
auto selectedBrushColor = brushColor;
selectedBrushColor.setAlpha(65);
setSelectedBrush(QBrush(selectedBrushColor));
setSelectedPen(QPen(Qt::NoPen));
auto linePen = QPen(color);
linePen.setStyle(Qt::SolidLine);
linePen.setWidth(2);
auto selectedLinePen = linePen;
selectedLinePen.setColor(color.darker(30));
impl->m_LeftLine->setPen(linePen);
impl->m_RightLine->setPen(linePen);
impl->m_LeftLine->setSelectedPen(selectedLinePen);
impl->m_RightLine->setSelectedPen(selectedLinePen);
}
void VisualizationSelectionZoneItem::setEditionEnabled(bool value)
{
impl->m_IsEditionEnabled = value;
setSelectable(value);
if (!value) {
setSelected(false);
trabillard
drag of selection zones
 r1087 impl->m_CurrentEditionMode = VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition;
trabillard
Display of selection zones on a graph
 r1084 }
}
bool VisualizationSelectionZoneItem::isEditionEnabled() const
{
return impl->m_IsEditionEnabled;
}
Qt::CursorShape
VisualizationSelectionZoneItem::curshorShapeForPosition(const QPoint &position) const
{
auto mode = impl->m_CurrentEditionMode
== VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition
? impl->getEditionMode(position, this)
: impl->m_CurrentEditionMode;
switch (mode) {
case VisualizationSelectionZoneItemPrivate::EditionMode::Move:
return Qt::SizeAllCursor;
case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft:
case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight: // fallthrough
return Qt::SizeHorCursor;
default:
return Qt::ArrowCursor;
}
}
void VisualizationSelectionZoneItem::setHovered(bool value)
{
if (value) {
auto linePen = impl->m_LeftLine->pen();
linePen.setStyle(Qt::DotLine);
linePen.setWidth(3);
auto selectedLinePen = impl->m_LeftLine->selectedPen();
;
selectedLinePen.setStyle(Qt::DotLine);
selectedLinePen.setWidth(3);
impl->m_LeftLine->setPen(linePen);
impl->m_RightLine->setPen(linePen);
impl->m_LeftLine->setSelectedPen(selectedLinePen);
impl->m_RightLine->setSelectedPen(selectedLinePen);
}
else {
setColor(impl->m_Color);
}
}
void VisualizationSelectionZoneItem::mousePressEvent(QMouseEvent *event, const QVariant &details)
{
if (isEditionEnabled()) {
impl->m_CurrentEditionMode = impl->getEditionMode(event->pos(), this);
impl->m_MovedOrinalT1 = impl->m_T1;
impl->m_MovedOrinalT2 = impl->m_T2;
}
else {
event->ignore();
}
}
void VisualizationSelectionZoneItem::mouseMoveEvent(QMouseEvent *event, const QPointF &startPos)
{
if (isEditionEnabled()) {
auto axis = impl->m_Plot->axisRect()->axis(QCPAxis::atBottom);
auto diff = axis->pixelToCoord(event->pos().x()) - axis->pixelToCoord(startPos.x());
switch (impl->m_CurrentEditionMode) {
case VisualizationSelectionZoneItemPrivate::EditionMode::Move:
setRange(impl->m_MovedOrinalT1 + diff, impl->m_MovedOrinalT2 + diff);
break;
case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeLeft:
setStart(impl->m_MovedOrinalT1 + diff);
break;
case VisualizationSelectionZoneItemPrivate::EditionMode::ResizeRight:
setEnd(impl->m_MovedOrinalT2 + diff);
break;
// default:
// unknown edition mode
}
}
else {
event->ignore();
}
}
void VisualizationSelectionZoneItem::mouseReleaseEvent(QMouseEvent *event, const QPointF &startPos)
{
if (isEditionEnabled()) {
impl->m_CurrentEditionMode = VisualizationSelectionZoneItemPrivate::EditionMode::NoEdition;
}
else {
event->ignore();
}
}