#include <ddtPanningWidget.hpp>

Inheritance diagram for DdtPanningWidget:

Signals
void	UpdatePosition (double scroll_fraction_x, double scroll_fraction_y)

Protected Attributes
bool	show_axes

int	show_status = 1

float	rotation_deg

float	zoom_factor

bool	mouse_drag_active

QLabel *	preview_image_label

QImage	preview_image

QRect	selection_rectangle

QRect	max_selection_rectangle

int	origin_x

int	origin_y

QRubberBand *	rubberband

Properties
bool	ShowAxes

	DdtPanningWidget (QWidget *parent=nullptr)

	~DdtPanningWidget ()

void	set_show_axes (const bool show)

bool	get_show_axes () const

void	set_rotation_deg (const float rotation)

float	get_rotation_deg () const

bool	eventFilter (QObject obj, QEvent event)

void	SetImage (const QImage &image, const QTransform &transform, const double rotation)

void	ImageWidgetViewChanged (const QRectF &visible_image_rect, const int current_image_width, const int current_image_height)

void	ClearMagnifiedImage ()

Additional Inherited Members
Public Member Functions inherited from DdtWidget
virtual	~DdtWidget ()=default

	DdtWidget (QWidget *parent=nullptr)
	DdtWidget.

QWidget *	AddParentWidget (QLayout *child_layout)
	AddParentWidget This will add the given layout to a QGroupBox Widget to integrate in the parent layout.

void	connect (const QObject sender, const char signal, const QObject receiver, const char member)
	connect Group of overloaded functions that use the QObject::connect method with the Qt::QueuedConnection flag. This defines Qt Signal and Slots connection the same way thought out the QApplication.

void	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

void	connect (const QObject sender, const char signal, const char *member)

template<typename Func1 , typename Func2 >
void	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot)
	connect Template version of QObject::connection with fixed Qt::QueuedConnection flag. Normally used to connect a signal with a lambda function.

Detailed Description

Class for the Panning Widget that can be used to pan the image currently displayed in an Image Widget

Constructor & Destructor Documentation

◆ DdtPanningWidget()

DdtPanningWidget::DdtPanningWidget ( QWidget * parent = nullptr )

explicit

Constructor

Parameters

parent Pointer to the parent widget

◆ ~DdtPanningWidget()

DdtPanningWidget::~DdtPanningWidget ( )

default

Destructor

Member Function Documentation

◆ ClearMagnifiedImage

void DdtPanningWidget::ClearMagnifiedImage ( )

slot

Slot which is called to clear the magnified preview image, e.g. when a binary table is loaded.

◆ eventFilter()

bool DdtPanningWidget::eventFilter	(	QObject *	obj,
		QEvent *	event )

protected

Event filter that will be called especially when mouse events reach the widget

Parameters

obj	Pointer to the object
event	Pointer to the event that occurred

◆ get_rotation_deg()

float DdtPanningWidget::get_rotation_deg ( ) const

Rerieve the rotation angle (in degrees) that is used for the compass display

Returns: the rotation angle (in degrees)

◆ get_show_axes()

bool DdtPanningWidget::get_show_axes ( ) const

Retrieve the state of the show_axes flag

Returns: true if the compass axes should be plotted in the pan preview

◆ ImageWidgetViewChanged

void DdtPanningWidget::ImageWidgetViewChanged	(	const QRectF &	visible_image_rect,
		const int	current_image_width,
		const int	current_image_height )

slot

Slot which is called when the position in the image widget was changed (e.g. by scrolling, resizing, zoom)

Parameters

visible_image_rect	Rectangle of the currently visible part of the image
current_image_width	Total width of the image currently displayed
current_image_height	Total height of the image currently displayed

◆ set_rotation_deg()

void DdtPanningWidget::set_rotation_deg ( const float rotation )

Sets the rotation angle (in degrees) to be used for the compass display

Parameters

rotation the rotation angle to be set (in degrees)

◆ set_show_axes()

void DdtPanningWidget::set_show_axes ( const bool show )

Sets status of the flag that decides if compass axis should be shown at all

Parameters

show	if true the axes of the compass will be displayed in the preview image

◆ SetImage

void DdtPanningWidget::SetImage	(	const QImage &	image,
		const QTransform &	transform,
		const double	rotation )

slot

Slot which is called when a new image was loaded in the image widget

Parameters

image	Pointer to the new preview image
transform	Transformation to be used for drawing the compass
rotation	The rotation angle for the compass display

◆ UpdatePosition

void DdtPanningWidget::UpdatePosition	(	double	scroll_fraction_x,
		double	scroll_fraction_y )

signal

Signal which is sent when the selection rectangle is moved

Parameters

scroll_fraction_x	Fraction of the width to which the selection rectangle was moved
scroll_fraction_y	Fraction of the height to which the selection rectangle was moved

Member Data Documentation

◆ max_selection_rectangle

QRect DdtPanningWidget::max_selection_rectangle

protected

Maximum rectangle that is available for the preview window

◆ mouse_drag_active

bool DdtPanningWidget::mouse_drag_active

protected

Flag which indicates that a mouse drag operation is in progress

◆ origin_x

int DdtPanningWidget::origin_x

protected

Origin of the x coordinate since the preview image might be smaller then the widget

◆ origin_y

int DdtPanningWidget::origin_y

protected

Origin of the y coordinate since the preview image might be smaller then the widget

◆ preview_image

QImage DdtPanningWidget::preview_image

protected

QImage that holds the preview image shown in the widget

◆ preview_image_label

QLabel* DdtPanningWidget::preview_image_label

protected

QLabel which is used to display the preview image that can be used to navigate the current view

◆ rotation_deg

float DdtPanningWidget::rotation_deg

protected

Rotation angle (in degrees) to be used for the compass display

◆ rubberband

QRubberBand* DdtPanningWidget::rubberband

protected

Rubberband object to display the selection rectangle in the widget

◆ selection_rectangle

QRect DdtPanningWidget::selection_rectangle

protected

Rectangle holding the current pan rectangle

◆ show_axes

bool DdtPanningWidget::show_axes

protected

Flag to decide if compass axes should be displayed in the widget

◆ show_status

int DdtPanningWidget::show_status = 1

protected

Status indicating which axes are to be shown 0 - show none 1 - show compass and x/y axes 2 - only show compass 3 - only show x/y axes

◆ zoom_factor

float DdtPanningWidget::zoom_factor

protected

Current zoom factor

Property Documentation

◆ ShowAxes

bool DdtPanningWidget::ShowAxes

readwrite

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

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

Signals

Protected Attributes

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DdtPanningWidget()

◆ ~DdtPanningWidget()

Member Function Documentation

◆ ClearMagnifiedImage

◆ eventFilter()

◆ get_rotation_deg()

◆ get_show_axes()

◆ ImageWidgetViewChanged

◆ set_rotation_deg()

◆ set_show_axes()

◆ SetImage

◆ UpdatePosition

Member Data Documentation

◆ max_selection_rectangle

◆ mouse_drag_active

◆ origin_x

◆ origin_y

◆ preview_image

◆ preview_image_label

◆ rotation_deg

◆ rubberband

◆ selection_rectangle

◆ show_axes

◆ show_status

◆ zoom_factor

Property Documentation

◆ ShowAxes