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Handles items with same names in the same node...
Handles items with same names in the same node This case is handled by adding suffix (plugin name) when displaying items in the widget
trabillard - - Load All Authors

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r975:de303a265a7e
r1037:c90049fe7bc2
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VisualizationCursorItem.cpp
163 lines | 5.7 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationCursorItem.cpp
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trabillard
Implements cursor mode
 r960 #include <Common/DateUtils.h>
#include <Visualization/VisualizationCursorItem.h>
#include <Visualization/qcustomplot.h>
/// Width of the cursor in pixel
const auto CURSOR_WIDTH = 3;
/// Color of the cursor in the graph
const auto CURSOR_COLOR = QColor{68, 114, 196};
/// Line style of the cursor in the graph
auto CURSOR_PEN_STYLE = Qt::DotLine;
struct VisualizationCursorItem::VisualizationCursorItemPrivate {
QCustomPlot *m_Plot = nullptr;
QCPItemStraightLine *m_LineItem = nullptr;
QCPItemText *m_LabelItem = nullptr;
Qt::Orientation m_Orientation;
double m_Position = 0.0;
bool m_IsAbsolutePosition = false;
QString m_LabelText;
explicit VisualizationCursorItemPrivate(QCustomPlot *plot)
: m_Plot(plot), m_Orientation(Qt::Vertical)
{
}
void updateOrientation()
{
if (m_LineItem) {
switch (m_Orientation) {
case Qt::Vertical:
m_LineItem->point1->setTypeX(m_IsAbsolutePosition
? QCPItemPosition::ptAbsolute
: QCPItemPosition::ptPlotCoords);
m_LineItem->point1->setTypeY(QCPItemPosition::ptAxisRectRatio);
m_LineItem->point2->setTypeX(m_IsAbsolutePosition
? QCPItemPosition::ptAbsolute
: QCPItemPosition::ptPlotCoords);
m_LineItem->point2->setTypeY(QCPItemPosition::ptAxisRectRatio);
m_LabelItem->setPositionAlignment(Qt::AlignLeft | Qt::AlignTop);
break;
case Qt::Horizontal:
m_LineItem->point1->setTypeX(QCPItemPosition::ptAxisRectRatio);
m_LineItem->point1->setTypeY(m_IsAbsolutePosition
? QCPItemPosition::ptAbsolute
: QCPItemPosition::ptPlotCoords);
m_LineItem->point2->setTypeX(QCPItemPosition::ptAxisRectRatio);
m_LineItem->point2->setTypeY(m_IsAbsolutePosition
? QCPItemPosition::ptAbsolute
: QCPItemPosition::ptPlotCoords);
m_LabelItem->setPositionAlignment(Qt::AlignRight | Qt::AlignBottom);
}
}
}
void updateCursorPosition()
{
if (m_LineItem) {
switch (m_Orientation) {
case Qt::Vertical:
m_LineItem->point1->setCoords(m_Position, 0);
m_LineItem->point2->setCoords(m_Position, 1);
m_LabelItem->position->setCoords(5, 5);
break;
case Qt::Horizontal:
m_LineItem->point1->setCoords(1, m_Position);
m_LineItem->point2->setCoords(0, m_Position);
m_LabelItem->position->setCoords(-5, -5);
}
}
}
void updateLabelText()
{
if (m_LabelItem) {
m_LabelItem->setText(m_LabelText);
}
}
};
VisualizationCursorItem::VisualizationCursorItem(QCustomPlot *plot)
: impl{spimpl::make_unique_impl<VisualizationCursorItemPrivate>(plot)}
{
}
void VisualizationCursorItem::setVisible(bool value)
{
if (value != isVisible()) {
if (value) {
trabillard
fix a crash with the cursor in debug
 r975 Q_ASSERT(!impl->m_LineItem && !impl->m_LabelItem);
trabillard
Implements cursor mode
 r960
impl->m_LineItem = new QCPItemStraightLine{impl->m_Plot};
auto pen = QPen{CURSOR_PEN_STYLE};
pen.setColor(CURSOR_COLOR);
pen.setWidth(CURSOR_WIDTH);
impl->m_LineItem->setPen(pen);
impl->m_LineItem->setSelectable(false);
impl->m_LabelItem = new QCPItemText{impl->m_Plot};
impl->m_LabelItem->setColor(CURSOR_COLOR);
impl->m_LabelItem->setSelectable(false);
impl->m_LabelItem->position->setParentAnchor(impl->m_LineItem->point1);
impl->m_LabelItem->position->setTypeX(QCPItemPosition::ptAbsolute);
impl->m_LabelItem->position->setTypeY(QCPItemPosition::ptAbsolute);
auto font = impl->m_LabelItem->font();
font.setPointSize(10);
font.setBold(true);
impl->m_LabelItem->setFont(font);
impl->updateOrientation();
impl->updateLabelText();
impl->updateCursorPosition();
}
else {
trabillard
fix a crash with the cursor in debug
 r975 Q_ASSERT(impl->m_LineItem && impl->m_LabelItem);
trabillard
Implements cursor mode
 r960
// Note: the items are destroyed by QCustomPlot in removeItem
impl->m_Plot->removeItem(impl->m_LineItem);
impl->m_LineItem = nullptr;
impl->m_Plot->removeItem(impl->m_LabelItem);
impl->m_LabelItem = nullptr;
}
}
}
bool VisualizationCursorItem::isVisible() const
{
return impl->m_LineItem != nullptr;
}
void VisualizationCursorItem::setPosition(double value)
{
impl->m_Position = value;
impl->m_IsAbsolutePosition = false;
impl->updateLabelText();
impl->updateCursorPosition();
}
void VisualizationCursorItem::setAbsolutePosition(double value)
{
setPosition(value);
impl->m_IsAbsolutePosition = true;
}
void VisualizationCursorItem::setOrientation(Qt::Orientation orientation)
{
impl->m_Orientation = orientation;
impl->updateLabelText();
impl->updateOrientation();
impl->updateCursorPosition();
}
void VisualizationCursorItem::setLabelText(const QString &text)
{
impl->m_LabelText = text;
impl->updateLabelText();
}