#include <Surface.H>

Inheritance diagram for Surface:

Collaboration diagram for Surface:

Public Member Functions
	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)

Protected Member Functions
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
static gboolean	configureEventStatic (GtkWidget widget, GdkEventConfigure event, gpointer data)

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

Protected Attributes
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

Examples:: CairoArrowTest.C, CairoBoxTest.C, CairoCircleTest.C, and DrawingAreaTest.C.

Definition at line 32 of file Surface.H.

Constructor & Destructor Documentation

◆ Surface() [1/2]

Surface::Surface ( )

inline

Default constructor of size 200 by 200

Definition at line 161 of file Surface.H.

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◆ Surface() [2/2]

Surface::Surface	(	int	width,
		int	height
	)

inline

Construct a surface

Parameters

width	the width of the surface
height	the height of the surface

Definition at line 168 of file Surface.H.

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◆ ~Surface()

virtual Surface::~Surface ( void )

inlinevirtual

Destructor

Definition at line 174 of file Surface.H.

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Member Function Documentation

◆ clear()

void Surface::clear ( void )

inline

Redraw the background to the surface removing all changes.

Definition at line 217 of file Surface.H.

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◆ configureEvent()

virtual gboolean Surface::configureEvent ( GdkEventConfigure * event )

inlineprotectedvirtual

Overload this method to handle configure-event signals in your classes.

Parameters

event the event which triggered this configure-event signal.

Returns: true to finish executing, false to allow other handlers to execute.

Definition at line 79 of file Surface.H.

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◆ configureEventStatic()

static gboolean Surface::configureEventStatic	(	GtkWidget *	widget,
		GdkEventConfigure *	event,
		gpointer	data
	)

inlinestaticprotected

Create a new backing surface of the appropriate size. Also call the configureEvent method of the class instance.

Parameters

widget	The widget receiving the event.
event	The event which triggered the configure-event signal
data	The instance of Surface which is associated with the widget/event

Returns: true to finish processing, false to allow other handlers to process.

Definition at line 46 of file Surface.H.

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◆ connectDamagedCallback()

void Surface::connectDamagedCallback	(	GCallback	callback,
		void *	data
	)

inlineprotected

Connect a callback function for when the surface is changed.

Parameters

callback	The callback to execute
data	The user data to pass to the callback

Definition at line 153 of file Surface.H.

◆ destroySurface()

void Surface::destroySurface ( void )

inlineprotected

Method to dereference and set the surface to null

Definition at line 121 of file Surface.H.

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◆ exposeEvent()

virtual bool Surface::exposeEvent ( )

inlineprotectedvirtual

allow overloading of the expose event.

Returns: true to finish processing, false to allow other handlers to process.

Definition at line 107 of file Surface.H.

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◆ exposeEventStatic()

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

inlinestaticprotected

Redraw the screen from the backing surface. Calls an overloadable class method expose.

Parameters

widget	The widget receiving the event.
event	The event which triggered the expose-event signal
data	The instance of Surface which is associated with the widget/event

Returns: true to finish processing, false to allow other handlers to process.

Definition at line 89 of file Surface.H.

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◆ getSurface()

cairo_surface_t* Surface::getSurface ( void )

inline

Get the backing surface

Returns: The backing suraface

Examples:: CairoBoxTest.C, and CairoCircleTest.C.

Definition at line 204 of file Surface.H.

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◆ getWidget()

GtkWidget* Surface::getWidget ( void )

inline

Get the drawing area widget

Returns: The drawing area widget

Examples:: CairoArrowTest.C, CairoBoxTest.C, CairoCircleTest.C, DrawingAreaTest.C, and SelectionAreaTest.C.

Definition at line 185 of file Surface.H.

◆ init()

void Surface::init	(	int	width,
		int	height
	)

inlineprotected

Initialise the member variables.

Parameters

width	the width of the surface
height	the height of the surface

Definition at line 134 of file Surface.H.

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◆ setSurface()

void Surface::setSurface ( cairo_surface_t * surface_ )

inline

Set the backing surface

Parameters

surface_ The new backing surface

Definition at line 209 of file Surface.H.

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Member Data Documentation

◆ surface

cairo_surface_t* Surface::surface

protected

The backing surface for the drawing area.

Definition at line 37 of file Surface.H.

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

/tmp/gtkiostream/include/Surface.H

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Surface() [1/2]

◆ Surface() [2/2]

◆ ~Surface()

Member Function Documentation

◆ clear()

◆ configureEvent()

◆ configureEventStatic()

◆ connectDamagedCallback()

◆ destroySurface()

◆ exposeEvent()

◆ exposeEventStatic()

◆ getSurface()

◆ getWidget()

◆ init()

◆ setSurface()

Member Data Documentation

◆ surface