#include <ddtGraphicsView.hpp>

Inheritance diagram for DdtGraphicsView:

Signals
void	CursorPosition (double x, double y, bool mouse_clicked)

void	GraphicalElement (double x1, double y1, double x2, double y2, QString draw_mode)

void	GraphicalTextElement (double x1, double y1, double x2, double y2, QString draw_mode, QString text)

void	StatisticRectangle (double x1, double y1, double x2, double y2)

void	SlitElement (double target_x, double target_y, double slit_x, double slit_y, double x_offset, double y_offset)

void	CalculateHistogramReferenceLine (const QPointF p1, const QPointF p2)

void	CalculateDistanceLine (const QPointF p1, const QPointF p2)

void	MouseDecrementScale ()

void	MouseIncrementScale ()

void	LayerIncrement (const int inc)

void	LayerDecrement (const int dec)

	DdtGraphicsView (QWidget *parent=nullptr)

	~DdtGraphicsView () override

void	SetConvertPixelToDegrees (const double conv_pixel_degrees)

void	SetDrawMode (const QString mode)

QString	GetDrawMode () const

void	SetDrawSlitLine (const bool draw_line)

void	SetStatisticRect (const double x1, const double y1, const double x2, const double y2)

void	SetOverlayImageFile (const QString filename)

void	AddStatisticRectToScene ()

void	AddSlitElementToScene ()

void	AddReferenceLineElementToScene ()

void	AddDistanceLineElementToScene ()

void	UpdateAllStatistics ()

void	UpdateCursorInfo ()

void	ClearTextItemFocus ()

void	mouseMoveEvent (QMouseEvent *event) override

void	mousePressEvent (QMouseEvent *event) override

void	mouseReleaseEvent (QMouseEvent *event) override

void	mouseDoubleClickEvent (QMouseEvent *event) override

void	keyPressEvent (QKeyEvent *event) override

void	wheelEvent (QWheelEvent *event) override

void	drawForeground (QPainter *painter, const QRectF &rect) override

bool	IsHandleGraphicalElement () const

void	AddTextItem ()

void	ReferenceLineHandleHoldingShift ()

Detailed Description

Class to serve as graphic view inside the image widget, derived from the QGraphicsView. The mouse events (move, press) are overwritten.

Constructor & Destructor Documentation

◆ DdtGraphicsView()

DdtGraphicsView::DdtGraphicsView ( QWidget * parent = nullptr )

explicit

Constructor

Parameters

parent Pointer to the parent widget

◆ ~DdtGraphicsView()

DdtGraphicsView::~DdtGraphicsView ( )

overridedefault

Destructor

Member Function Documentation

◆ AddDistanceLineElementToScene()

void DdtGraphicsView::AddDistanceLineElementToScene ( )

Re-add the distance line element to the scene for the case it was removed by a refresh procedure

◆ AddReferenceLineElementToScene()

void DdtGraphicsView::AddReferenceLineElementToScene ( )

Re-add the reference line element to the scene for the case it was removed by a refresh procedure

◆ AddSlitElementToScene()

void DdtGraphicsView::AddSlitElementToScene ( )

Re-add the slit element to the scene, for the case it was removed by a refresh procedure

◆ AddStatisticRectToScene()

void DdtGraphicsView::AddStatisticRectToScene ( )

Re-add the statistic rectangle to the scene, for the case it was removed by a refresh procedure

◆ AddTextItem()

void DdtGraphicsView::AddTextItem ( )

protected

Re-add the textItem for text input (necessary in case of a running data stream input)

◆ CalculateDistanceLine

void DdtGraphicsView::CalculateDistanceLine	(	const QPointF	p1,
		const QPointF	p2 )

signal

Signals send when a distance line was drawn

◆ CalculateHistogramReferenceLine

void DdtGraphicsView::CalculateHistogramReferenceLine	(	const QPointF	p1,
		const QPointF	p2 )

signal

Signals send when a reference line was drawn

◆ ClearTextItemFocus

void DdtGraphicsView::ClearTextItemFocus ( )

slot

Slot which is called when the Graphical Element dialog is closed. It clears the focus of a text item if present.

◆ CursorPosition

void DdtGraphicsView::CursorPosition	(	double	x,
		double	y,
		bool	mouse_clicked )

signal

Signal that is emitted to report the cursor position.

Parameters

x	mouse x coordinate
y	mouse y coordinate
mouse_clicked	flag, if mouse button was clicked

◆ drawForeground()

void DdtGraphicsView::drawForeground	(	QPainter *	painter,
		const QRectF &	rect )

overrideprotected

Draw the foreground layer. This is automatically called when the view is updated.

Parameters

painter	the painter to use for drawing
rect	the exposed rectangle

◆ GetDrawMode()

QString DdtGraphicsView::GetDrawMode ( ) const

Returns the current draw mode for graphical elements

Returns: the current draw mode

◆ GraphicalElement

void DdtGraphicsView::GraphicalElement	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		QString	draw_mode )

signal

Signal that is emitted to report a graphical element's dimensions and type.

Parameters

x1	mouse x coordinate of first position
y1	mouse y coordinate of first position
x2	mouse x coordinate of second position
y2	mouse y coordinate of second position
draw_mode	string identifying the graphical element

◆ GraphicalTextElement

void DdtGraphicsView::GraphicalTextElement	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		QString	draw_mode,
		QString	text )

signal

◆ IsHandleGraphicalElement()

bool DdtGraphicsView::IsHandleGraphicalElement ( ) const

protected

Check if draw mode is to be handled as for graphical elements

◆ keyPressEvent()

void DdtGraphicsView::keyPressEvent ( QKeyEvent * event )

overrideprotected

Event handler to receive keyboard events

Parameters

event Key event

Clearing the focus triggers the focusOutEvent of the text_item. This emits the signal GraphicsTextItemLostFocus that calls the connected slot HandleText(). Note: Do not call HandleText() directly!

◆ LayerDecrement

void DdtGraphicsView::LayerDecrement ( const int dec )

signal

Signal emitted to decrement the layer (plane) in a cube image

Parameters

dec	the decrement value. A value of 0 will set the layer to the first one.

◆ LayerIncrement

void DdtGraphicsView::LayerIncrement ( const int inc )

signal

Signal emitted to increment the layer (plane) in a cube image

Parameters

inc	the increment value. A value of 0 will set the layer to the last one.

◆ MouseDecrementScale

void DdtGraphicsView::MouseDecrementScale ( )

signal

Signal emitted when zooming in by mouse wheel

◆ mouseDoubleClickEvent()

void DdtGraphicsView::mouseDoubleClickEvent ( QMouseEvent * event )

overrideprotected

Event handler to receive mouse press events.

Parameters

event the mouse press event

◆ MouseIncrementScale

void DdtGraphicsView::MouseIncrementScale ( )

signal

Signal emitted when zooming out by mouse wheel

◆ mouseMoveEvent()

void DdtGraphicsView::mouseMoveEvent ( QMouseEvent * event )

overrideprotected

Event handler to receive mouse move events.

Parameters

event the mouse move event

◆ mousePressEvent()

void DdtGraphicsView::mousePressEvent ( QMouseEvent * event )

overrideprotected

Event handler to receive mouse press events.

Parameters

event the mouse press event

◆ mouseReleaseEvent()

void DdtGraphicsView::mouseReleaseEvent ( QMouseEvent * event )

overrideprotected

Event handler to receive mouse release events.

Parameters

event the mouse press event

◆ ReferenceLineHandleHoldingShift()

void DdtGraphicsView::ReferenceLineHandleHoldingShift ( )

protected

◆ SetConvertPixelToDegrees()

void DdtGraphicsView::SetConvertPixelToDegrees ( const double conv_pixel_degrees )

Set the value for the factor to convert pixel distances to degrees

Parameters

conv_pixel_degrees the factor to be used to convert pixel distances to degrees

◆ SetDrawMode()

void DdtGraphicsView::SetDrawMode ( const QString mode )

Sets the current draw mode for graphical elements

Parameters

mode	the current draw mode

◆ SetDrawSlitLine()

void DdtGraphicsView::SetDrawSlitLine ( const bool draw_line )

Sets the draw slit line flag

Parameters

draw_line indicating if the slit line shall be drawn

◆ SetOverlayImageFile()

void DdtGraphicsView::SetOverlayImageFile ( const QString filename )

Sets the current overlay image file name

Parameters

filename the current overlay image file name

◆ SetStatisticRect()

void DdtGraphicsView::SetStatisticRect	(	const double	x1,
		const double	y1,
		const double	x2,
		const double	y2 )

Sets the current draw mode for graphical elements

Parameters

x1	the x coordinate of top left corner
y1	the y coordinate of top left corner
x2	the x coordinate of bottom right corner
y2	the y coordinate of bottom right corner

◆ SlitElement

void DdtGraphicsView::SlitElement	(	double	target_x,
		double	target_y,
		double	slit_x,
		double	slit_y,
		double	x_offset,
		double	y_offset )

signal

◆ StatisticRectangle

void DdtGraphicsView::StatisticRectangle	(	double	x1,
		double	y1,
		double	x2,
		double	y2 )

signal

◆ UpdateAllStatistics()

void DdtGraphicsView::UpdateAllStatistics ( )

Update all statistics

◆ UpdateCursorInfo()

void DdtGraphicsView::UpdateCursorInfo ( )

Update the cursor info

◆ wheelEvent()

void DdtGraphicsView::wheelEvent ( QWheelEvent * event )

overrideprotected

Event handler for mouse wheel events.

Parameters

event the scroll wheel event

The documentation for this class was generated from the following files:

datavisualisation/widgetsdialogs/src/include/ddt/widgets/ddtGraphicsView.hpp
datavisualisation/widgetsdialogs/src/widgets/ddtGraphicsView.cpp