#include <DrawingArea.H>

Inheritance diagram for DrawingArea:

Collaboration diagram for DrawingArea:

Public Member Functions
	DrawingArea (void)

	DrawingArea (int width, int height)

virtual	~DrawingArea (void)

void	connectDrawEvent (GCallback callBack, gpointer data)

Public Member Functions inherited from Surface
	Surface ()

	Surface (int width, int height)

virtual	~Surface (void)

GtkWidget *	getWidget (void)

cairo_surface_t *	getSurface (void)

void	setSurface (cairo_surface_t *surface_)

void	clear ()

Public Member Functions inherited from Widget
	Widget ()
	Construcotr. More...

	Widget (GtkWidget *w)

virtual	~Widget ()
	Destructor. More...

GtkWidget *	ref (void)

void	unref (void)

GtkWidget *	show (void)

GtkWidget *	hide (void)

bool	getVisible (void)

GtkWidget *	getWidget (void)

bool	getSensitive (void)

void	setSensitive (bool sens)

void	getSize (int &width, int &height)

virtual void	setSize (int width, int height)

void	getLocationSize (int &x, int &y, int &width, int &height)

void	queueDraw ()

GdkWindow *	getWindow ()

void	connect (const char *event, GCallback callback, gpointer data)

void	connectAfter (const char *event, GCallback callback, gpointer data)

void	connectExposeEventCallback (GCallback callback, void *data)

void	connectExposeEventCallback (GtkWidget w, GCallback callback, void data)

void	connectConfigureEventCallback (GCallback callback, void *data)

void	connectConfigureEventCallback (GtkWidget w, GCallback callback, void data)

Widget &	operator<< (DragNDrop &dnd)

Widget &	operator>> (DragNDrop &dnd)

Private Member Functions
void	init (void)

virtual void	move (GtkWidget *widget, gdouble x, gdouble y)

virtual void	leaveEvent ()

virtual void	draw (GtkWidget *widget, gdouble x, gdouble y)

virtual void	erase (GtkWidget *widget, gdouble x, gdouble y)

Static Private Member Functions
static gint	buttonPressEvent (GtkWidget widget, GdkEventButton event, gpointer data)

static gint	motionNotifyEvent (GtkWidget widget, GdkEventMotion event, gpointer data)

static gint	leaveEventStatic (GtkWidget widget, GdkEventMotion event, gpointer data)

Additional Inherited Members
Protected Member Functions inherited from Surface
virtual gboolean	configureEvent (GdkEventConfigure *event)

virtual bool	exposeEvent ()

void	destroySurface (void)

void	init (int width, int height)

void	connectDamagedCallback (GCallback callback, void *data)

Protected Member Functions inherited from Widget
virtual bool	checkDropValidity (GtkWidget w, GtkWidget sourceWidget, int info, const unsigned char *selectionStoredData)

virtual bool	dragDataReceived (GtkWidget w, GtkWidget sourceWidget, int info, const unsigned char *selectionStoredData, int length)

virtual void	dragLeave (GtkWidget w, GtkWidget sourceWidget)

virtual bool	dragMotion (GtkWidget w, GtkWidget sourceWidget, int x, int y)

virtual int	chooseTheTargetToUse (GtkWidget w, GtkWidget sourceWidget, DragNDrop &dnd)

virtual void	dragDataGet (GtkWidget w, GtkSelectionData selectionData, guint info)

virtual void	dragDataDelete (GtkWidget *w)

virtual void	dragBegin (GtkWidget *w)

virtual void	dragEnd (GtkWidget *w)

Static Protected Member Functions inherited from Surface
static gboolean	configureEventStatic (GtkWidget widget, GdkEventConfigure event, gpointer data)

static gboolean	exposeEventStatic (GtkWidget widget, GdkEventExpose event, gpointer data)

Protected Attributes inherited from Surface
cairo_surface_t *	surface
	The backing surface for the drawing area. More...

Protected Attributes inherited from Widget
GtkWidget *	widget
	The container based widget. More...

Detailed Description

DrawingArea

This class allows the user to draw within a window by moving the mouse. It uses a backing pixmap to store drawing strokes.

Examples:: DrawingAreaTest.C.

Definition at line 29 of file DrawingArea.H.

Constructor & Destructor Documentation

◆ DrawingArea() [1/2]

DrawingArea::DrawingArea ( void )

inline

Constructor Create a drawing of default size (200 by 200)

Definition at line 152 of file DrawingArea.H.

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◆ DrawingArea() [2/2]

DrawingArea::DrawingArea	(	int	width,
		int	height
	)

inline

Constructor Create a drawing area of particular size

Definition at line 159 of file DrawingArea.H.

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◆ ~DrawingArea()

virtual DrawingArea::~DrawingArea ( void )

inlinevirtual

Destructor

Definition at line 165 of file DrawingArea.H.

Member Function Documentation

◆ buttonPressEvent()

static gint DrawingArea::buttonPressEvent	(	GtkWidget *	widget,
		GdkEventButton *	event,
		gpointer	data
	)

inlinestaticprivate

Handler for when the button is pressed

Parameters

widget	Which widget the button is pressed in.
event	The event to handle
data	The user data which is a pointer to this class.

Returns: TRUE to continue processing the event

Definition at line 37 of file DrawingArea.H.

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◆ connectDrawEvent()

void DrawingArea::connectDrawEvent	(	GCallback	callBack,
		gpointer	data
	)

inline

Definition at line 168 of file DrawingArea.H.

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◆ draw()

virtual void DrawingArea::draw	(	GtkWidget *	widget,
		gdouble	x,
		gdouble	y
	)

inlineprivatevirtual

Draw a rectangle on the screen

Parameters

widget	The widget to draw on.
x	The ordinate to draw to.
y	The coordinate to draw to.

Reimplemented in SelectionArea.

Definition at line 110 of file DrawingArea.H.

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◆ erase()

virtual void DrawingArea::erase	(	GtkWidget *	widget,
		gdouble	x,
		gdouble	y
	)

inlineprivatevirtual

Erase a rectangle on the screen

Parameters

widget	The widget to draw on.
x	The ordinate to draw to.
y	The coordinate to draw to.

Reimplemented in SelectionArea.

Definition at line 133 of file DrawingArea.H.

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◆ init()

void DrawingArea::init ( void )

inlineprivate

Create a valid drawing area of particular size

Definition at line 81 of file DrawingArea.H.

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◆ leaveEvent()

virtual void DrawingArea::leaveEvent ( )

inlineprivatevirtual

The mouse has left.

Reimplemented in SelectionArea.

Definition at line 100 of file DrawingArea.H.

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◆ leaveEventStatic()

static gint DrawingArea::leaveEventStatic	(	GtkWidget *	widget,
		GdkEventMotion *	event,
		gpointer	data
	)

inlinestaticprivate

Notifies when the mouse has left the widget.

Definition at line 72 of file DrawingArea.H.

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◆ motionNotifyEvent()

static gint DrawingArea::motionNotifyEvent	(	GtkWidget *	widget,
		GdkEventMotion *	event,
		gpointer	data
	)

inlinestaticprivate

Definition at line 48 of file DrawingArea.H.

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◆ move()

virtual void DrawingArea::move	(	GtkWidget *	widget,
		gdouble	x,
		gdouble	y
	)

inlineprivatevirtual

Move the brush. Moves the brush without drawing.

Parameters

widget	The widget to move the brush on.
x	The ordinate to draw to.
y	The coordinate to draw to.

Reimplemented in SelectionArea.

Definition at line 94 of file DrawingArea.H.

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

/tmp/gtkiostream/include/DrawingArea.H

Public Member Functions

Private Member Functions

Static Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DrawingArea() [1/2]

◆ DrawingArea() [2/2]

◆ ~DrawingArea()

Member Function Documentation

◆ buttonPressEvent()

◆ connectDrawEvent()

◆ draw()

◆ erase()

◆ init()

◆ leaveEvent()

◆ leaveEventStatic()

◆ motionNotifyEvent()

◆ move()