@ -12,6 +12,7 @@
# include <QOpenGLWidget> # include <QOpenGLWidget>
# include <QPushButton> # include <QPushButton>
# include <QRubberBand> # include <QRubberBand>
# include <QStylePainter>
# include <QToolBar> # include <QToolBar>
# include <QToolTip> # include <QToolTip>
# include <QtConcurrent> # include <QtConcurrent>
@ -70,13 +71,13 @@ ChartsWidget::ChartsWidget(QWidget *parent) : align_timer(this), QFrame(parent)
charts_layout = new QGridLayout ( ) ; charts_layout = new QGridLayout ( ) ;
charts_layout - > setSpacing ( 10 ) ; charts_layout - > setSpacing ( 10 ) ;
QWidget * charts_container = new QWidget ( this ) ; charts_container = new QWidget ( this ) ;
QVBoxLayout * charts_main_layout = new QVBoxLayout ( charts_container ) ; QVBoxLayout * charts_main_layout = new QVBoxLayout ( charts_container ) ;
charts_main_layout - > setContentsMargins ( 0 , 0 , 0 , 0 ) ; charts_main_layout - > setContentsMargins ( 0 , 0 , 0 , 0 ) ;
charts_main_layout - > addLayout ( charts_layout ) ; charts_main_layout - > addLayout ( charts_layout ) ;
charts_main_layout - > addStretch ( 0 ) ; charts_main_layout - > addStretch ( 0 ) ;
QScrollArea * charts_scroll = new QScrollArea ( this ) ; charts_scroll = new QScrollArea ( this ) ;
charts_scroll - > setFrameStyle ( QFrame : : NoFrame ) ; charts_scroll - > setFrameStyle ( QFrame : : NoFrame ) ;
charts_scroll - > setWidgetResizable ( true ) ; charts_scroll - > setWidgetResizable ( true ) ;
charts_scroll - > setWidget ( charts_container ) ; charts_scroll - > setWidget ( charts_container ) ;
@ -84,8 +85,6 @@ ChartsWidget::ChartsWidget(QWidget *parent) : align_timer(this), QFrame(parent)
main_layout - > addWidget ( charts_scroll ) ; main_layout - > addWidget ( charts_scroll ) ;
// init settings
// init settings
use_dark_theme = QApplication : : palette ( ) . color ( QPalette : : WindowText ) . value ( ) >
QApplication : : palette ( ) . color ( QPalette : : Background ) . value ( ) ;
column_count = std : : clamp ( settings . chart_column_count , 1 , MAX_COLUMN_COUNT ) ; column_count = std : : clamp ( settings . chart_column_count , 1 , MAX_COLUMN_COUNT ) ;
max_chart_range = std : : clamp ( settings . chart_range , 1 , settings . max_cached_minutes * 60 ) ; max_chart_range = std : : clamp ( settings . chart_range , 1 , settings . max_cached_minutes * 60 ) ;
display_range = { 0 , max_chart_range } ; display_range = { 0 , max_chart_range } ;
@ -157,6 +156,17 @@ void ChartsWidget::zoomUndo() {
} }
} }
void ChartsWidget : : showValueTip ( double sec ) {
const QRect visible_rect ( - charts_container - > pos ( ) , charts_scroll - > viewport ( ) - > size ( ) ) ;
for ( auto c : charts ) {
if ( sec > = 0 & & visible_rect . contains ( QRect ( c - > mapTo ( charts_container , QPoint ( 0 , 0 ) ) , c - > size ( ) ) ) ) {
c - > showTip ( sec ) ;
} else {
c - > hideTip ( ) ;
}
}
}
void ChartsWidget : : updateState ( ) { void ChartsWidget : : updateState ( ) {
if ( charts . isEmpty ( ) ) return ; if ( charts . isEmpty ( ) ) return ;
@ -219,13 +229,14 @@ ChartView *ChartsWidget::createChart() {
chart - > setFixedHeight ( settings . chart_height ) ; chart - > setFixedHeight ( settings . chart_height ) ;
chart - > setMinimumWidth ( CHART_MIN_WIDTH ) ; chart - > setMinimumWidth ( CHART_MIN_WIDTH ) ;
chart - > setSizePolicy ( QSizePolicy : : MinimumExpanding , QSizePolicy : : Fixed ) ; chart - > setSizePolicy ( QSizePolicy : : MinimumExpanding , QSizePolicy : : Fixed ) ;
chart - > chart ( ) - > setTheme ( use_dark_theme ? QChart : : QChart : : ChartThemeDark : QChart : : ChartThemeLight ) ; chart - > chart ( ) - > setTheme ( settings . theme = = 2 ? QChart : : QChart : : ChartThemeDark : QChart : : ChartThemeLight ) ;
QObject : : connect ( chart , & ChartView : : remove , [ = ] ( ) { removeChart ( chart ) ; } ) ; QObject : : connect ( chart , & ChartView : : remove , [ = ] ( ) { removeChart ( chart ) ; } ) ;
QObject : : connect ( chart , & ChartView : : zoomIn , this , & ChartsWidget : : zoomIn ) ; QObject : : connect ( chart , & ChartView : : zoomIn , this , & ChartsWidget : : zoomIn ) ;
QObject : : connect ( chart , & ChartView : : zoomUndo , this , & ChartsWidget : : zoomUndo ) ; QObject : : connect ( chart , & ChartView : : zoomUndo , this , & ChartsWidget : : zoomUndo ) ;
QObject : : connect ( chart , & ChartView : : seriesRemoved , this , & ChartsWidget : : seriesChanged ) ; QObject : : connect ( chart , & ChartView : : seriesRemoved , this , & ChartsWidget : : seriesChanged ) ;
QObject : : connect ( chart , & ChartView : : seriesAdded , this , & ChartsWidget : : seriesChanged ) ; QObject : : connect ( chart , & ChartView : : seriesAdded , this , & ChartsWidget : : seriesChanged ) ;
QObject : : connect ( chart , & ChartView : : axisYLabelWidthChanged , & align_timer , qOverload < > ( & QTimer : : start ) ) ; QObject : : connect ( chart , & ChartView : : axisYLabelWidthChanged , & align_timer , qOverload < > ( & QTimer : : start ) ) ;
QObject : : connect ( chart , & ChartView : : hovered , this , & ChartsWidget : : showValueTip ) ;
charts . push_back ( chart ) ; charts . push_back ( chart ) ;
updateLayout ( ) ; updateLayout ( ) ;
return chart ; return chart ;
@ -329,12 +340,26 @@ bool ChartsWidget::eventFilter(QObject *obj, QEvent *event) {
bool ChartsWidget : : event ( QEvent * event ) { bool ChartsWidget : : event ( QEvent * event ) {
bool back_button = false ; bool back_button = false ;
if ( event - > type ( ) = = QEvent : : MouseButtonPress ) { switch ( event - > type ( ) ) {
QMouseEvent * ev = static_cast < QMouseEvent * > ( event ) ; case QEvent : : MouseButtonPress : {
back_button = ev - > button ( ) = = Qt : : BackButton ; QMouseEvent * ev = static_cast < QMouseEvent * > ( event ) ;
} else if ( event - > type ( ) = = QEvent : : NativeGesture ) { // MacOS emulates a back swipe on pressing the mouse back button
back_button = ev - > button ( ) = = Qt : : BackButton ;
QNativeGestureEvent * ev = static_cast < QNativeGestureEvent * > ( event ) ; break ;
back_button = ( ev - > value ( ) = = 180 ) ; }
case QEvent : : NativeGesture : {
QNativeGestureEvent * ev = static_cast < QNativeGestureEvent * > ( event ) ;
back_button = ( ev - > value ( ) = = 180 ) ;
break ;
}
case QEvent : : WindowActivate :
case QEvent : : WindowDeactivate :
case QEvent : : FocusIn :
case QEvent : : FocusOut :
showValueTip ( - 1 ) ;
break ;
default :
break ;
} }
if ( back_button ) { if ( back_button ) {
@ -346,7 +371,7 @@ bool ChartsWidget::event(QEvent *event) {
// ChartView
// ChartView
ChartView : : ChartView ( QWidget * parent ) : QChartView ( nullptr , parent ) { ChartView : : ChartView ( QWidget * parent ) : tip_label ( this ) , QChartView ( nullptr , parent ) {
series_type = ( SeriesType ) settings . chart_series_type ; series_type = ( SeriesType ) settings . chart_series_type ;
QChart * chart = new QChart ( ) ; QChart * chart = new QChart ( ) ;
chart - > setBackgroundVisible ( false ) ; chart - > setBackgroundVisible ( false ) ;
@ -358,19 +383,18 @@ ChartView::ChartView(QWidget *parent) : QChartView(nullptr, parent) {
chart - > legend ( ) - > setShowToolTips ( true ) ; chart - > legend ( ) - > setShowToolTips ( true ) ;
chart - > setMargins ( { 0 , 0 , 0 , 0 } ) ; chart - > setMargins ( { 0 , 0 , 0 , 0 } ) ;
background = new QGraphicsRectItem ( chart ) ;
background - > setBrush ( QApplication : : palette ( ) . color ( QPalette : : Base ) ) ;
background - > setPen ( Qt : : NoPen ) ;
background - > setZValue ( chart - > zValue ( ) - 1 ) ;
setChart ( chart ) ; setChart ( chart ) ;
createToolButtons ( ) ; createToolButtons ( ) ;
setRenderHint ( QPainter : : Antialiasing ) ;
// TODO: enable zoomIn/seekTo in live streaming mode.
// TODO: enable zoomIn/seekTo in live streaming mode.
setRubberBand ( can - > liveStreaming ( ) ? QChartView : : NoRubberBand : QChartView : : HorizontalRubberBand ) ; setRubberBand ( can - > liveStreaming ( ) ? QChartView : : NoRubberBand : QChartView : : HorizontalRubberBand ) ;
setMouseTracking ( true ) ; setMouseTracking ( true ) ;
QObject : : connect ( axis_x , & QValueAxis : : rangeChanged , [ this ] ( ) { resetChartCache ( ) ; } ) ;
QObject : : connect ( axis_y , & QValueAxis : : rangeChanged , [ this ] ( ) { resetChartCache ( ) ; } ) ;
QObject : : connect ( axis_y , & QAbstractAxis : : titleTextChanged , [ this ] ( ) { resetChartCache ( ) ; } ) ;
QObject : : connect ( chart , & QChart : : plotAreaChanged , [ this ] ( ) { resetChartCache ( ) ; } ) ;
QObject : : connect ( dbc ( ) , & DBCManager : : signalRemoved , this , & ChartView : : signalRemoved ) ; QObject : : connect ( dbc ( ) , & DBCManager : : signalRemoved , this , & ChartView : : signalRemoved ) ;
QObject : : connect ( dbc ( ) , & DBCManager : : signalUpdated , this , & ChartView : : signalUpdated ) ; QObject : : connect ( dbc ( ) , & DBCManager : : signalUpdated , this , & ChartView : : signalUpdated ) ;
QObject : : connect ( dbc ( ) , & DBCManager : : msgRemoved , this , & ChartView : : msgRemoved ) ; QObject : : connect ( dbc ( ) , & DBCManager : : msgRemoved , this , & ChartView : : msgRemoved ) ;
@ -447,6 +471,7 @@ void ChartView::removeIf(std::function<bool(const SigItem &s)> predicate) {
emit remove ( ) ; emit remove ( ) ;
} else if ( sigs . size ( ) ! = prev_size ) { } else if ( sigs . size ( ) ! = prev_size ) {
updateAxisY ( ) ; updateAxisY ( ) ;
resetChartCache ( ) ;
} }
} }
@ -488,15 +513,14 @@ void ChartView::resizeEvent(QResizeEvent *event) {
manage_btn_proxy - > setPos ( x , top ) ; manage_btn_proxy - > setPos ( x , top ) ;
chart ( ) - > legend ( ) - > setGeometry ( { move_icon - > sceneBoundingRect ( ) . topRight ( ) , manage_btn_proxy - > sceneBoundingRect ( ) . bottomLeft ( ) } ) ; chart ( ) - > legend ( ) - > setGeometry ( { move_icon - > sceneBoundingRect ( ) . topRight ( ) , manage_btn_proxy - > sceneBoundingRect ( ) . bottomLeft ( ) } ) ;
if ( align_to > 0 ) { if ( align_to > 0 ) {
updatePlotArea ( align_to ) ; updatePlotArea ( align_to , true ) ;
} }
QChartView : : resizeEvent ( event ) ; QChartView : : resizeEvent ( event ) ;
} }
void ChartView : : updatePlotArea ( int left_pos ) { void ChartView : : updatePlotArea ( int left_pos , bool force ) {
if ( align_to ! = left_pos | | rect ( ) ! = background - > rect ( ) ) { if ( align_to ! = left_pos | | force ) {
align_to = left_pos ; align_to = left_pos ;
background - > setRect ( rect ( ) ) ;
qreal left , top , right , bottom ; qreal left , top , right , bottom ;
chart ( ) - > layout ( ) - > getContentsMargins ( & left , & top , & right , & bottom ) ; chart ( ) - > layout ( ) - > getContentsMargins ( & left , & top , & right , & bottom ) ;
@ -505,9 +529,6 @@ void ChartView::updatePlotArea(int left_pos) {
int adjust_top = chart ( ) - > legend ( ) - > geometry ( ) . height ( ) + style ( ) - > pixelMetric ( QStyle : : PM_LayoutTopMargin ) ; int adjust_top = chart ( ) - > legend ( ) - > geometry ( ) . height ( ) + style ( ) - > pixelMetric ( QStyle : : PM_LayoutTopMargin ) ;
chart ( ) - > setPlotArea ( rect ( ) . adjusted ( align_to + left , adjust_top + top , - x_label_size . width ( ) / 2 - right , - x_label_size . height ( ) - bottom ) ) ; chart ( ) - > setPlotArea ( rect ( ) . adjusted ( align_to + left , adjust_top + top , - x_label_size . width ( ) / 2 - right , - x_label_size . height ( ) - bottom ) ) ;
chart ( ) - > layout ( ) - > invalidate ( ) ; chart ( ) - > layout ( ) - > invalidate ( ) ;
if ( can - > isPaused ( ) ) {
update ( ) ;
}
} }
} }
@ -519,6 +540,7 @@ void ChartView::updateTitle() {
auto decoration = s . series - > isVisible ( ) ? " none " : " line-through " ; auto decoration = s . series - > isVisible ( ) ? " none " : " line-through " ;
s . series - > setName ( QString ( " <span style= \" text-decoration:%1 \" ><b>%2</b> <font color= \" gray \" >%3 %4</font></span> " ) . arg ( decoration , s . sig - > name , msgName ( s . msg_id ) , s . msg_id . toString ( ) ) ) ; s . series - > setName ( QString ( " <span style= \" text-decoration:%1 \" ><b>%2</b> <font color= \" gray \" >%3 %4</font></span> " ) . arg ( decoration , s . sig - > name , msgName ( s . msg_id ) , s . msg_id . toString ( ) ) ) ;
} }
resetChartCache ( ) ;
} }
void ChartView : : updatePlot ( double cur , double min , double max ) { void ChartView : : updatePlot ( double cur , double min , double max ) {
@ -528,7 +550,7 @@ void ChartView::updatePlot(double cur, double min, double max) {
updateAxisY ( ) ; updateAxisY ( ) ;
updateSeriesPoints ( ) ; updateSeriesPoints ( ) ;
} }
scene ( ) - > invalidate ( { } , QGraphicsScene : : ForegroundLayer ) ; viewport ( ) - > update ( ) ;
} }
void ChartView : : updateSeriesPoints ( ) { void ChartView : : updateSeriesPoints ( ) {
@ -542,7 +564,11 @@ void ChartView::updateSeriesPoints() {
double pixels_per_point = ( chart ( ) - > mapToPosition ( right_pt ) . x ( ) - chart ( ) - > mapToPosition ( * begin ) . x ( ) ) / num_points ; double pixels_per_point = ( chart ( ) - > mapToPosition ( right_pt ) . x ( ) - chart ( ) - > mapToPosition ( * begin ) . x ( ) ) / num_points ;
if ( series_type = = SeriesType : : Scatter ) { if ( series_type = = SeriesType : : Scatter ) {
( ( QScatterSeries * ) s . series ) - > setMarkerSize ( std : : clamp ( pixels_per_point / 2.0 , 2.0 , 8.0 ) * devicePixelRatioF ( ) ) ; qreal size = std : : clamp ( pixels_per_point / 2.0 , 2.0 , 8.0 ) ;
if ( s . series - > useOpenGL ( ) ) {
size * = devicePixelRatioF ( ) ;
}
( ( QScatterSeries * ) s . series ) - > setMarkerSize ( size ) ;
} else { } else {
s . series - > setPointsVisible ( pixels_per_point > 20 ) ; s . series - > setPointsVisible ( pixels_per_point > 20 ) ;
} }
@ -586,6 +612,7 @@ void ChartView::updateSeries(const cabana::Signal *sig) {
} }
} }
updateAxisY ( ) ; updateAxisY ( ) ;
resetChartCache ( ) ;
} }
// auto zoom on yaxis
// auto zoom on yaxis
@ -606,16 +633,20 @@ void ChartView::updateAxisY() {
auto first = std : : lower_bound ( s . vals . begin ( ) , s . vals . end ( ) , axis_x - > min ( ) , xLessThan ) ; auto first = std : : lower_bound ( s . vals . begin ( ) , s . vals . end ( ) , axis_x - > min ( ) , xLessThan ) ;
auto last = std : : lower_bound ( first , s . vals . end ( ) , axis_x - > max ( ) , xLessThan ) ; auto last = std : : lower_bound ( first , s . vals . end ( ) , axis_x - > max ( ) , xLessThan ) ;
s . min = std : : numeric_limits < double > : : max ( ) ;
s . max = std : : numeric_limits < double > : : lowest ( ) ;
if ( can - > liveStreaming ( ) ) { if ( can - > liveStreaming ( ) ) {
for ( auto it = first ; it ! = last ; + + it ) { for ( auto it = first ; it ! = last ; + + it ) {
if ( it - > y ( ) < min ) min = it - > y ( ) ; if ( it - > y ( ) < s . min ) s . min = it - > y ( ) ;
if ( it - > y ( ) > max ) max = it - > y ( ) ; if ( it - > y ( ) > s . max ) s . max = it - > y ( ) ;
} }
} else { } else {
auto [ min_y , max_y ] = s . segment_tree . minmax ( std : : distance ( s . vals . begin ( ) , first ) , std : : distance ( s . vals . begin ( ) , last ) ) ; auto [ min_y , max_y ] = s . segment_tree . minmax ( std : : distance ( s . vals . begin ( ) , first ) , std : : distance ( s . vals . begin ( ) , last ) ) ;
min = std : : min ( min , min_y ) ; s . min = min_y ;
max = std : : max ( max , max_y ) ; s . max = max_y ;
} }
min = std : : min ( min , s . min ) ;
max = std : : max ( max , s . max ) ;
} }
if ( min = = std : : numeric_limits < double > : : max ( ) ) min = 0 ; if ( min = = std : : numeric_limits < double > : : max ( ) ) min = 0 ;
if ( max = = std : : numeric_limits < double > : : lowest ( ) ) max = 0 ; if ( max = = std : : numeric_limits < double > : : lowest ( ) ) max = 0 ;
@ -668,8 +699,9 @@ qreal ChartView::niceNumber(qreal x, bool ceiling) {
} }
void ChartView : : leaveEvent ( QEvent * event ) { void ChartView : : leaveEvent ( QEvent * event ) {
clearTrackPoints ( ) ; if ( tip_label . isVisible ( ) ) {
scene ( ) - > update ( ) ; emit hovered ( - 1 ) ;
}
QChartView : : leaveEvent ( event ) ; QChartView : : leaveEvent ( event ) ;
} }
@ -716,7 +748,7 @@ void ChartView::mouseReleaseEvent(QMouseEvent *event) {
} else if ( rubber - > width ( ) > 10 ) { } else if ( rubber - > width ( ) > 10 ) {
emit zoomIn ( min_rounded , max_rounded ) ; emit zoomIn ( min_rounded , max_rounded ) ;
} else { } else {
scene ( ) - > invalidate ( { } , QGraphicsScene : : ForegroundLayer ) ; viewport ( ) - > update ( ) ;
} }
event - > accept ( ) ; event - > accept ( ) ;
} else if ( ! can - > liveStreaming ( ) & & event - > button ( ) = = Qt : : RightButton ) { } else if ( ! can - > liveStreaming ( ) & & event - > button ( ) = = Qt : : RightButton ) {
@ -741,42 +773,17 @@ void ChartView::mouseMoveEvent(QMouseEvent *ev) {
if ( plot_area . contains ( ev - > pos ( ) ) ) { if ( plot_area . contains ( ev - > pos ( ) ) ) {
can - > seekTo ( std : : clamp ( chart ( ) - > mapToValue ( ev - > pos ( ) ) . x ( ) , 0. , can - > totalSeconds ( ) ) ) ; can - > seekTo ( std : : clamp ( chart ( ) - > mapToValue ( ev - > pos ( ) ) . x ( ) , 0. , can - > totalSeconds ( ) ) ) ;
} }
return ;
} }
auto rubber = findChild < QRubberBand * > ( ) ; auto rubber = findChild < QRubberBand * > ( ) ;
bool is_zooming = rubber & & rubber - > isVisible ( ) ; bool is_zooming = rubber & & rubber - > isVisible ( ) ;
is_scrubbing = false ;
clearTrackPoints ( ) ; clearTrackPoints ( ) ;
if ( ! is_zooming & & plot_area . contains ( ev - > pos ( ) ) ) { if ( ! is_zooming & & plot_area . contains ( ev - > pos ( ) ) ) {
QStringList text_list ;
const double sec = chart ( ) - > mapToValue ( ev - > pos ( ) ) . x ( ) ; const double sec = chart ( ) - > mapToValue ( ev - > pos ( ) ) . x ( ) ;
qreal x = - 1 ; emit hovered ( sec ) ;
for ( auto & s : sigs ) { } else if ( tip_label . isVisible ( ) ) {
if ( ! s . series - > isVisible ( ) ) continue ; emit hovered ( - 1 ) ;
// use reverse iterator to find last item <= sec.
double value = 0 ;
auto it = std : : lower_bound ( s . vals . rbegin ( ) , s . vals . rend ( ) , sec , [ ] ( auto & p , double x ) { return p . x ( ) > x ; } ) ;
if ( it ! = s . vals . rend ( ) & & it - > x ( ) > = axis_x - > min ( ) ) {
value = it - > y ( ) ;
s . track_pt = chart ( ) - > mapToPosition ( * it ) ;
x = std : : max ( x , s . track_pt . x ( ) ) ;
}
text_list . push_back ( QString ( " <span style= \" color:%1; \" >■ </span>%2: <b>%3</b> " )
. arg ( s . series - > color ( ) . name ( ) , s . sig - > name ,
s . track_pt . isNull ( ) ? " -- " : QString : : number ( value ) ) ) ;
}
if ( x < 0 ) {
x = ev - > pos ( ) . x ( ) ;
}
text_list . push_front ( QString : : number ( chart ( ) - > mapToValue ( { x , 0 } ) . x ( ) , ' f ' , 3 ) ) ;
QPointF tooltip_pt ( x + 12 , plot_area . top ( ) - 20 ) ;
QToolTip : : showText ( mapToGlobal ( tooltip_pt . toPoint ( ) ) , text_list . join ( " <br /> " ) , this , plot_area . toRect ( ) ) ;
scene ( ) - > invalidate ( { } , QGraphicsScene : : ForegroundLayer ) ;
} else {
QToolTip : : hideText ( ) ;
} }
QChartView : : mouseMoveEvent ( ev ) ; QChartView : : mouseMoveEvent ( ev ) ;
@ -787,10 +794,39 @@ void ChartView::mouseMoveEvent(QMouseEvent *ev) {
if ( rubber_rect ! = rubber - > geometry ( ) ) { if ( rubber_rect ! = rubber - > geometry ( ) ) {
rubber - > setGeometry ( rubber_rect ) ; rubber - > setGeometry ( rubber_rect ) ;
} }
scene ( ) - > invalidate ( { } , QGraphicsScene : : ForegroundLayer ) ; viewport ( ) - > update ( ) ;
} }
} }
void ChartView : : showTip ( double sec ) {
qreal x = chart ( ) - > mapToPosition ( { sec , 0 } ) . x ( ) ;
QStringList text_list ( QString : : number ( chart ( ) - > mapToValue ( { x , 0 } ) . x ( ) , ' f ' , 3 ) ) ;
for ( auto & s : sigs ) {
if ( s . series - > isVisible ( ) ) {
QString value = " -- " ;
// use reverse iterator to find last item <= sec.
auto it = std : : lower_bound ( s . vals . rbegin ( ) , s . vals . rend ( ) , sec , [ ] ( auto & p , double x ) { return p . x ( ) > x ; } ) ;
if ( it ! = s . vals . rend ( ) & & it - > x ( ) > = axis_x - > min ( ) ) {
value = QString : : number ( it - > y ( ) ) ;
s . track_pt = chart ( ) - > mapToPosition ( * it ) ;
x = std : : max ( x , s . track_pt . x ( ) ) ;
}
text_list < < QString ( " <span style= \" color:%1; \" >■ </span>%2: <b>%3</b> (%4 - %5) " )
. arg ( s . series - > color ( ) . name ( ) , s . sig - > name , value , QString : : number ( s . min ) , QString : : number ( s . max ) ) ;
}
}
QPointF tooltip_pt ( x , chart ( ) - > plotArea ( ) . top ( ) ) ;
int plot_right = mapToGlobal ( chart ( ) - > plotArea ( ) . topRight ( ) . toPoint ( ) ) . x ( ) ;
tip_label . showText ( mapToGlobal ( tooltip_pt . toPoint ( ) ) , " <p style='white-space:pre'> " + text_list . join ( " <br /> " ) + " </p> " , plot_right ) ;
viewport ( ) - > update ( ) ;
}
void ChartView : : hideTip ( ) {
clearTrackPoints ( ) ;
tip_label . hide ( ) ;
viewport ( ) - > update ( ) ;
}
void ChartView : : dragMoveEvent ( QDragMoveEvent * event ) { void ChartView : : dragMoveEvent ( QDragMoveEvent * event ) {
if ( event - > mimeData ( ) - > hasFormat ( mime_type ) ) { if ( event - > mimeData ( ) - > hasFormat ( mime_type ) ) {
event - > setDropAction ( event - > source ( ) = = this ? Qt : : MoveAction : Qt : : CopyAction ) ; event - > setDropAction ( event - > source ( ) = = this ? Qt : : MoveAction : Qt : : CopyAction ) ;
@ -818,6 +854,34 @@ void ChartView::dropEvent(QDropEvent *event) {
} }
} }
void ChartView : : resetChartCache ( ) {
chart_pixmap = QPixmap ( ) ;
viewport ( ) - > update ( ) ;
}
void ChartView : : paintEvent ( QPaintEvent * event ) {
if ( ! can - > liveStreaming ( ) ) {
if ( chart_pixmap . isNull ( ) ) {
const qreal dpr = viewport ( ) - > devicePixelRatioF ( ) ;
chart_pixmap = QPixmap ( viewport ( ) - > size ( ) * dpr ) ;
chart_pixmap . setDevicePixelRatio ( dpr ) ;
chart_pixmap . fill ( palette ( ) . color ( QPalette : : Base ) ) ;
QPainter p ( & chart_pixmap ) ;
p . setRenderHints ( QPainter : : Antialiasing ) ;
scene ( ) - > setSceneRect ( viewport ( ) - > rect ( ) ) ;
scene ( ) - > render ( & p ) ;
}
QPainter painter ( viewport ( ) ) ;
painter . setRenderHints ( QPainter : : Antialiasing ) ;
painter . drawPixmap ( QPoint ( ) , chart_pixmap ) ;
QRectF exposed_rect = mapToScene ( event - > region ( ) . boundingRect ( ) ) . boundingRect ( ) ;
drawForeground ( & painter , exposed_rect ) ;
} else {
QChartView : : paintEvent ( event ) ;
}
}
void ChartView : : drawForeground ( QPainter * painter , const QRectF & rect ) { void ChartView : : drawForeground ( QPainter * painter , const QRectF & rect ) {
// draw time line
// draw time line
qreal x = chart ( ) - > mapToPosition ( QPointF { cur_sec , 0 } ) . x ( ) ; qreal x = chart ( ) - > mapToPosition ( QPointF { cur_sec , 0 } ) . x ( ) ;
@ -1033,3 +1097,39 @@ QList<SeriesSelector::ListItem *> SeriesSelector::seletedItems() {
for ( int i = 0 ; i < selected_list - > count ( ) ; + + i ) ret . push_back ( ( ListItem * ) selected_list - > item ( i ) ) ; for ( int i = 0 ; i < selected_list - > count ( ) ; + + i ) ret . push_back ( ( ListItem * ) selected_list - > item ( i ) ) ;
return ret ; return ret ;
} }
// ValueTipLabel
ValueTipLabel : : ValueTipLabel ( QWidget * parent ) : QLabel ( parent , Qt : : ToolTip | Qt : : FramelessWindowHint ) {
setForegroundRole ( QPalette : : ToolTipText ) ;
setBackgroundRole ( QPalette : : ToolTipBase ) ;
setPalette ( QToolTip : : palette ( ) ) ;
ensurePolished ( ) ;
setMargin ( 1 + style ( ) - > pixelMetric ( QStyle : : PM_ToolTipLabelFrameWidth , nullptr , this ) ) ;
setAttribute ( Qt : : WA_ShowWithoutActivating ) ;
setTextFormat ( Qt : : RichText ) ;
setVisible ( false ) ;
}
void ValueTipLabel : : showText ( const QPoint & pt , const QString & text , int right_edge ) {
setText ( text ) ;
if ( ! text . isEmpty ( ) ) {
QSize extra ( 1 , 1 ) ;
resize ( sizeHint ( ) + extra ) ;
QPoint tip_pos ( pt . x ( ) + 12 , pt . y ( ) ) ;
if ( tip_pos . x ( ) + size ( ) . width ( ) > = right_edge ) {
tip_pos . rx ( ) = pt . x ( ) - size ( ) . width ( ) - 12 ;
}
move ( tip_pos ) ;
}
setVisible ( ! text . isEmpty ( ) ) ;
}
void ValueTipLabel : : paintEvent ( QPaintEvent * ev ) {
QStylePainter p ( this ) ;
QStyleOptionFrame opt ;
opt . init ( this ) ;
p . drawPrimitive ( QStyle : : PE_PanelTipLabel , opt ) ;
p . end ( ) ;
QLabel : : paintEvent ( ev ) ;
}
ZwX1616
2 years ago