Visu2D Class Reference

Class for the image visualization. Allows to graphically represent data as an image. Inherits from QWidget. More...

#include <visu2d.h>

Collaboration diagram for Visu2D:

List of all members.

Public Slots

void SaveSelection ()

Saves the visualized shapes in a file.

void ReadSelection ()

Reads and loads shapes from a file.

Signals

void UpdateInfoBar (const QString &)

This signal is emitted by SetTextInfo for every mouse movement.

void UpdateStats (Selection *)

This signal is emitted when the displayed stats are not valid anymore. (here, this is because the shape has changed, but that signal could also have been emitted if the data changed).

Public Member Functions

Visu2D (QWidget *parent=0)

Constructs a new class instance.

~Visu2D ()

destructor

void SetShapeType (SHAPE_TYPE type)

Sets the selected shape's type.

void UpdateDataAndPixmap (Image *pIm, Palette *pal)

Initialize the pixmap from data and palette.

Private Member Functions

void paintEvent (QPaintEvent *p)

Receives the 'paint' events from the widget.

void mouseMoveEvent (QMouseEvent *e)

Method called for each mouse movement in the visualization.

void mousePressEvent (QMouseEvent *e)

Method called whenever a mouse-button is pressed.

void mouseReleaseEvent (QMouseEvent *e)

Method called whenever a mouse-button is released.

void DrawShapes (QPainter *p)

Draws the shape.

void HandleMouse (int type, QMouseEvent *e)

Mouse handling. Depending on the event, executes the according associated action.

void GenerateShape (int type, int x, int y)

Generate a shape.

void SetTextInfo (int x, int y)

Updates the main window informations.

Private Attributes

Image * m_pImage

Pointer to the graphical data.

QPixmap m_pxScaled

Pixmap to be displayed.

int m_visuScaleFactor

Scale factor between the data and the visualization.

Selection * m_selection

List of shapes displayed in the image.

Shape * m_tmpShape

Temporary shape, being created.

SHAPE_TYPE m_shapeType

Type of the shape.

Detailed Description

Class for the image visualization. Allows to graphically represent data as an image. Inherits from QWidget.

Definition at line 26 of file visu2d.h.

Constructor & Destructor Documentation

Visu2D::Visu2D ( QWidget * parent = 0 )

Constructs a new class instance.

Parameters:

parent

: the parent object for this widget (ie: the widget holding this widget)

Definition at line 21 of file visu2d.cpp.

References m_pImage, m_selection, m_tmpShape, and m_visuScaleFactor.

Visu2D::~Visu2D ( )

destructor

Definition at line 35 of file visu2d.cpp.

References m_selection, and m_tmpShape.

Member Function Documentation

void Visu2D::UpdateInfoBar ( const QString & _t1 ) [signal]

This signal is emitted by SetTextInfo for every mouse movement.

Definition at line 91 of file moc_visu2d.cpp.

Referenced by SetTextInfo().

void Visu2D::UpdateStats ( Selection * _t1 ) [signal]

This signal is emitted when the displayed stats are not valid anymore. (here, this is because the shape has changed, but that signal could also have been emitted if the data changed).

Definition at line 98 of file moc_visu2d.cpp.

Referenced by GenerateShape().

void Visu2D::SaveSelection ( ) [slot]

Saves the visualized shapes in a file.

Definition at line 211 of file visu2d.cpp.

References m_selection.

void Visu2D::ReadSelection ( ) [slot]

Reads and loads shapes from a file.

Definition at line 222 of file visu2d.cpp.

References m_selection.

void Visu2D::SetShapeType ( SHAPE_TYPE type )

Sets the selected shape's type.

Definition at line 66 of file visu2d.cpp.

References m_shapeType.

Referenced by WFrame::InitToolBar(), and WFrame::SetType().

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void Visu2D::UpdateDataAndPixmap	(	Image *	pIm,
		Palette *	pal
	)

Initialize the pixmap from data and palette.

Definition at line 71 of file visu2d.cpp.

References Palette::DataToIndex(), Palette::GetColor(), Image::GetData(), Image::GetSizeX(), Image::GetSizeY(), m_pImage, m_pxScaled, m_visuScaleFactor, and NB_COLORS.

Referenced by WFrame::ReadImage(), and WFrame::UpdateColorMap().

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void Visu2D::paintEvent ( QPaintEvent * p ) [private]

Receives the 'paint' events from the widget.

Definition at line 47 of file visu2d.cpp.

References DrawShapes(), and m_pxScaled.

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void Visu2D::mouseMoveEvent ( QMouseEvent * e ) [private]

Method called for each mouse movement in the visualization.

Definition at line 120 of file visu2d.cpp.

References HandleMouse(), and MOVE.

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void Visu2D::mousePressEvent ( QMouseEvent * e ) [private]

Method called whenever a mouse-button is pressed.

Definition at line 125 of file visu2d.cpp.

References HandleMouse(), and PRESS.

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void Visu2D::mouseReleaseEvent ( QMouseEvent * e ) [private]

Method called whenever a mouse-button is released.

Definition at line 130 of file visu2d.cpp.

References HandleMouse(), and RELEASE.

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void Visu2D::DrawShapes ( QPainter * p ) [private]

Draws the shape.

Parameters:

p

: low-level Qt object allowing to draw and/or display a pixmap in a QWidget

Definition at line 54 of file visu2d.cpp.

References Shape::Draw(), Selection::Draw(), m_selection, m_tmpShape, and m_visuScaleFactor.

Referenced by paintEvent().

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void Visu2D::HandleMouse	(	int	type,
		QMouseEvent *	e
	)			`[private]`

Mouse handling. Depending on the event, executes the according associated action.

Parameters:

	type,:	type of the event "PRESS \| MOVE \| RELEASE"
	e	: triggered event

Definition at line 135 of file visu2d.cpp.

References GenerateShape(), Image::IsPointInside(), m_pImage, m_visuScaleFactor, and SetTextInfo().

Referenced by mouseMoveEvent(), mousePressEvent(), and mouseReleaseEvent().

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void Visu2D::GenerateShape	(	int	type,
		int	x,
		int	y
	)			`[private]`

Generate a shape.

Parameters:

	type,:	type of the event "PRESS \| MOVE \| RELEASE"
	x,y	: event coordinates

Definition at line 171 of file visu2d.cpp.

References Selection::AllocateShape(), Selection::HandleNewShape(), Shape::Init(), m_selection, m_shapeType, m_tmpShape, Shape::ModifyEndShape(), MOVE, PRESS, RELEASE, UpdateStats(), and Shape::Validate().

Referenced by HandleMouse().

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void Visu2D::SetTextInfo	(	int	x,
		int	y
	)			`[private]`

Updates the main window informations.

Parameters:

x,y

: coordinates of the clicked point

Definition at line 159 of file visu2d.cpp.

References Image::GetData(), Image::IsPointInside(), m_pImage, and UpdateInfoBar().

Referenced by HandleMouse().

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Member Data Documentation

Image* Visu2D::m_pImage [private]

Pointer to the graphical data.

Definition at line 44 of file visu2d.h.

Referenced by HandleMouse(), SetTextInfo(), UpdateDataAndPixmap(), and Visu2D().

QPixmap Visu2D::m_pxScaled [private]

Pixmap to be displayed.

Definition at line 47 of file visu2d.h.

Referenced by paintEvent(), and UpdateDataAndPixmap().

int Visu2D::m_visuScaleFactor [private]

Scale factor between the data and the visualization.

Definition at line 50 of file visu2d.h.

Referenced by DrawShapes(), HandleMouse(), UpdateDataAndPixmap(), and Visu2D().

Selection* Visu2D::m_selection [private]

List of shapes displayed in the image.

Definition at line 53 of file visu2d.h.

Referenced by DrawShapes(), GenerateShape(), ReadSelection(), SaveSelection(), Visu2D(), and ~Visu2D().

Shape* Visu2D::m_tmpShape [private]

Temporary shape, being created.

Definition at line 56 of file visu2d.h.

Referenced by DrawShapes(), GenerateShape(), Visu2D(), and ~Visu2D().

SHAPE_TYPE Visu2D::m_shapeType [private]

Type of the shape.

Definition at line 59 of file visu2d.h.

Referenced by GenerateShape(), and SetShapeType().

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


Public Slots
void	SaveSelection ()
	Saves the visualized shapes in a file.
void	ReadSelection ()
	Reads and loads shapes from a file.
Signals
void	UpdateInfoBar (const QString &)
	This signal is emitted by SetTextInfo for every mouse movement.
void	UpdateStats (Selection *)
	This signal is emitted when the displayed stats are not valid anymore. (here, this is because the shape has changed, but that signal could also have been emitted if the data changed).
Public Member Functions
	Visu2D (QWidget *parent=0)
	Constructs a new class instance.
	~Visu2D ()
	destructor
void	SetShapeType (SHAPE_TYPE type)
	Sets the selected shape's type.
void	UpdateDataAndPixmap (Image pIm, Palette pal)
	Initialize the pixmap from data and palette.
Private Member Functions
void	paintEvent (QPaintEvent *p)
	Receives the 'paint' events from the widget.
void	mouseMoveEvent (QMouseEvent *e)
	Method called for each mouse movement in the visualization.
void	mousePressEvent (QMouseEvent *e)
	Method called whenever a mouse-button is pressed.
void	mouseReleaseEvent (QMouseEvent *e)
	Method called whenever a mouse-button is released.
void	DrawShapes (QPainter *p)
	Draws the shape.
void	HandleMouse (int type, QMouseEvent *e)
	Mouse handling. Depending on the event, executes the according associated action.
void	GenerateShape (int type, int x, int y)
	Generate a shape.
void	SetTextInfo (int x, int y)
	Updates the main window informations.
Private Attributes
Image *	m_pImage
	Pointer to the graphical data.
QPixmap	m_pxScaled
	Pixmap to be displayed.
int	m_visuScaleFactor
	Scale factor between the data and the visualization.
Selection *	m_selection
	List of shapes displayed in the image.
Shape *	m_tmpShape
	Temporary shape, being created.
SHAPE_TYPE	m_shapeType
	Type of the shape.