Referencia de la Clase PaintWidget

#include <quickpaintwidget.h>

Diagrama de herencias de PaintWidget

Lista de todos los miembros.

Slots públicos
void	setWindow (int x, int y, int w, int h)
void	setClipRect (int x, int y, int w, int h)
void	drawPoint (int x, int y)
void	moveTo (int x, int y)
void	lineTo (int x, int y)
void	drawLine (int x1, int y1, int x2, int y2)
void	drawRect (int x, int y, int w, int h)
void	drawRoundRect (int x, int y, int w, int h, int xRnd, int yRnd)
void	drawEllipse (int x, int y, int w, int h)
void	drawArc (int x, int y, int w, int h, int a, int alen)
void	drawPie (int x, int y, int w, int h, int a, int alen)
void	drawChord (int x, int y, int w, int h, int a, int alen)
void	fillRect (int x, int y, int w, int h)
void	eraseRect (int x, int y, int w, int h)
void	drawText (int x, int y, const QString &text)
int	drawText (int x, int y, int w, int h, const QString &text, bool wordWrap)
void	drawPixmap (int x, int y, const QPixmap &pixmap)
int	textWidth (const QString &text)
int	textHeight ()
int	textAscent ()
int	textDescent ()
void	flush ()
void	erase ()
Señales
void	updateContents ()
Métodos públicos
	PaintWidget (QWidget *parent=0, const char *name=0)
	~PaintWidget ()
void	setPenColor (const QString &color)
void	setBrushColor (const QString &color)
void	setBackgroundColor (const QString &color)
void	setPenWidth (int width)
QString	penColor () const
QString	brushColor () const
QString	backgroundColorEx () const
int	penWidth () const
void	setFontFamily (const QString &family)
void	setPointSize (int size)
QString	fontFamily () const
int	pointSize () const
void	setPaletteBackgroundColor (const QColor &color)
QPixmap	canvasPixmap () const
QPixmap	erasePixmap () const
void	setErasePixmap (const QPixmap &pm)
Métodos protegidos
void	resizeEvent (QResizeEvent *e)
void	paintEvent (QPaintEvent *e)
Propiedades
QString	penColor
QString	brushColor
QString	backgroundColor
QString	fontFamily
int	pointSize
int	penWidth
QPixmap	pixmap
QPixmap	erasePixmap

---

Documentación del constructor y destructor

PaintWidget::PaintWidget	(	QWidget *	parent = 0,
		const char *	name = 0
	)

PaintWidget::~PaintWidget

(

)

---

Documentación de las funciones miembro

QString PaintWidget::backgroundColorEx

(

)

const

QString PaintWidget::brushColor

(

)

const

QPixmap PaintWidget::canvasPixmap

(

)

const [inline]

void PaintWidget::drawArc	(	int	x,
		int	y,
		int	w,
		int	h,
		int	a,
		int	alen
	)		[slot]

void PaintWidget::drawChord	(	int	x,
		int	y,
		int	w,
		int	h,
		int	a,
		int	alen
	)		[slot]

void PaintWidget::drawEllipse	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

void PaintWidget::drawLine	(	int	x1,
		int	y1,
		int	x2,
		int	y2
	)		[slot]

void PaintWidget::drawPie	(	int	x,
		int	y,
		int	w,
		int	h,
		int	a,
		int	alen
	)		[slot]

void PaintWidget::drawPixmap	(	int	x,
		int	y,
		const QPixmap &	pixmap
	)		[slot]

void PaintWidget::drawPoint	(	int	x,
		int	y
	)		[slot]

void PaintWidget::drawRect	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

void PaintWidget::drawRoundRect	(	int	x,
		int	y,
		int	w,
		int	h,
		int	xRnd,
		int	yRnd
	)		[slot]

int PaintWidget::drawText	(	int	x,
		int	y,
		int	w,
		int	h,
		const QString &	text,
		bool	wordWrap
	)		[slot]

void PaintWidget::drawText	(	int	x,
		int	y,
		const QString &	str
	)		[slot]

Writes str at position x,y.

The y position is the base line position of the text. The text is drawn using the default font and the default foreground color.

This function is provided for convenience. You will generally get more flexible results and often higher speed by using a a painter instead.

Ver también:

setFont(), foregroundColor(), QPainter::drawText()

Draws the string str at position (x, y).

The y position is the base line position of the text. The text is drawn using the default font and the default foreground color.

This function is provided for convenience. You will generally get more flexible results and often higher speed by using a a painter instead.

Ver también:

setFont(), foregroundColor(), QPainter::drawText()

Reimplementado de QWidget.

void PaintWidget::erase

(

)

[slot]

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta.

This version erases the entire widget.

Reimplementado de QWidget.

QPixmap PaintWidget::erasePixmap

(

)

const [inline]

Returns the widget's erase pixmap.

Ver también:

setErasePixmap() eraseColor()

Reimplementado de QWidget.

void PaintWidget::eraseRect	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

void PaintWidget::fillRect	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

void PaintWidget::flush

(

)

[slot]

QString PaintWidget::fontFamily

(

)

const

void PaintWidget::lineTo	(	int	x,
		int	y
	)		[slot]

void PaintWidget::moveTo	(	int	x,
		int	y
	)		[slot]

void PaintWidget::paintEvent

(

QPaintEvent *

)

[protected, virtual]

This event handler can be reimplemented in a subclass to receive paint events.

A paint event is a request to repaint all or part of the widget. It can happen as a result of repaint() or update(), or because the widget was obscured and has now been uncovered, or for many other reasons.

Many widgets can simply repaint their entire surface when asked to, but some slow widgets need to optimize by painting only the requested region: QPaintEvent::region(). This speed optimization does not change the result, as painting is clipped to that region during event processing. QListView and QCanvas do this, for example.

Qt also tries to speed up painting by merging multiple paint events into one. When update() is called several times or the window system sends several paint events, Qt merges these events into one event with a larger region (see QRegion::unite()). repaint() does not permit this optimization, so we suggest using update() when possible.

When the paint event occurs, the update region has normally been erased, so that you're painting on the widget's background. There are a couple of exceptions and QPaintEvent::erased() tells you whether the widget has been erased or not.

The background can be set using setBackgroundMode(), setPaletteBackgroundColor() or setBackgroundPixmap(). The documentation for setBackgroundMode() elaborates on the background; we recommend reading it.

Ver también:

event(), repaint(), update(), QPainter, QPixmap, QPaintEvent

Reimplementado de QWidget.

QString PaintWidget::penColor

(

)

const

int PaintWidget::penWidth

(

)

const

int PaintWidget::pointSize

(

)

const

void PaintWidget::resizeEvent

(

QResizeEvent *

)

[protected, virtual]

This event handler can be reimplemented in a subclass to receive widget resize events. When resizeEvent() is called, the widget already has its new geometry. The old size is accessible through QResizeEvent::oldSize().

The widget will be erased and receive a paint event immediately after processing the resize event. No drawing need be (or should be) done inside this handler.

Widgets that have been created with the WNoAutoErase flag will not be erased. Nevertheless, they will receive a paint event for their entire area afterwards. Again, no drawing needs to be done inside this handler.

The default implementation calls updateMask() if the widget has automatic masking enabled.

Ver también:

moveEvent(), event(), resize(), QResizeEvent, paintEvent()

Reimplementado de QWidget.

void PaintWidget::setBackgroundColor

(

const QString &

color

)

void PaintWidget::setBrushColor

(

const QString &

color

)

void PaintWidget::setClipRect	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

void PaintWidget::setErasePixmap

(

const QPixmap &

pixmap

)

[inline, virtual]

Sets the widget's erase pixmap to pixmap.

This pixmap is used to clear the widget before paintEvent() is called.

Reimplementado de QWidget.

void PaintWidget::setFontFamily

(

const QString &

family

)

void PaintWidget::setPaletteBackgroundColor

(

const QColor &

color

)

[virtual]

Reimplementado de QWidget.

void PaintWidget::setPenColor

(

const QString &

color

)

void PaintWidget::setPenWidth

(

int

width

)

void PaintWidget::setPointSize

(

int

size

)

void PaintWidget::setWindow	(	int	x,
		int	y,
		int	w,
		int	h
	)		[slot]

int PaintWidget::textAscent

(

)

[slot]

int PaintWidget::textDescent

(

)

[slot]

int PaintWidget::textHeight

(

)

[slot]

int PaintWidget::textWidth

(

const QString &

text

)

[slot]

void PaintWidget::updateContents

(

)

[signal]

---

Documentación de propiedades

QString PaintWidget::backgroundColor [read, write]

QString PaintWidget::brushColor [read, write]

QPixmap PaintWidget::erasePixmap [read, write]

QString PaintWidget::fontFamily [read, write]

QString PaintWidget::penColor [read, write]

int PaintWidget::penWidth [read, write]

QPixmap PaintWidget::pixmap [read]

int PaintWidget::pointSize [read, write]

---

La documentación para esta clase fue generada a partir de los siguientes ficheros:

• src/qsa/src/custom/quickpaintwidget.h
• src/qsa/src/custom/quickpaintwidget.cpp