Canvas Class Reference

The Canvas class represents a custom widget for drawing on a canvas. More...

#include <canvas.h>

Inheritance diagram for Canvas:

Public Member Functions
	Canvas (QWidget *parent=nullptr)
	Constructs a new Canvas object.
void	clearImage ()
	Clears the image on the canvas.
void	restartCanvas ()
	Restarts the canvas by clearing the image and resetting the drawing state.
Eigen::MatrixXd	getMatrix ()
	Gets the matrix representation of the image on the canvas.
bool	isDrawing ()
	Checks if the user is currently drawing on the canvas.

Protected Member Functions
void	mousePressEvent (QMouseEvent *event) override
	Handles the mouse press event.
void	mouseMoveEvent (QMouseEvent *event) override
	Handles the mouse move event.
void	mouseReleaseEvent (QMouseEvent *event) override
	Handles the mouse release event.

Detailed Description

The Canvas class represents a custom widget for drawing on a canvas.

This class extends QLabel and provides functionality for drawing on a canvas using the mouse.

Constructor & Destructor Documentation

Canvas()

Canvas::Canvas ( QWidget *  parent = nullptr )

explicit

Constructs a new Canvas object.

Parameters

parent

The parent widget.

Member Function Documentation

clearImage()

void Canvas::clearImage

(

)

Clears the image on the canvas.

getMatrix()

Eigen::MatrixXd Canvas::getMatrix

(

)

Gets the matrix representation of the image on the canvas.

Returns

The matrix representation of the image.

isDrawing()

bool Canvas::isDrawing ( )

inline

Checks if the user is currently drawing on the canvas.

Returns

True if the user is drawing, false otherwise.

mouseMoveEvent()

void Canvas::mouseMoveEvent ( QMouseEvent *  event )

overrideprotected

Handles the mouse move event.

Parameters

event

The mouse event.

mousePressEvent()

void Canvas::mousePressEvent ( QMouseEvent *  event )

overrideprotected

Handles the mouse press event.

Parameters

event

The mouse event.

mouseReleaseEvent()

void Canvas::mouseReleaseEvent ( QMouseEvent *  event )

overrideprotected

Handles the mouse release event.

Parameters

event

The mouse event.

restartCanvas()

void Canvas::restartCanvas

(

)

Restarts the canvas by clearing the image and resetting the drawing state.

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

• tools/paint/canvas.h
• tools/paint/canvas.cpp