SvgGLView Class Reference

#include <svgview.h>

Inheritance diagram for SvgGLView:

[legend]Collaboration diagram for SvgGLView:

[legend]List of all members.

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Detailed Description

Definition at line 75 of file svgview.h.

Public Member Functions
	SvgGLView (const QString &file, QWidget *parent=0)
virtual QSize	sizeHint () const
Protected Member Functions
virtual void	paintEvent (QPaintEvent *event)
virtual void	wheelEvent (QWheelEvent *event)
Private Attributes
QSvgRenderer *	doc

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Constructor & Destructor Documentation

SvgGLView::SvgGLView	(	const QString &	file,
		QWidget *	parent = 0
	)

Definition at line 125 of file svgview.cpp.

References QObject::connect(), doc, SIGNAL, SLOT, and QWidget::update().

    : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
{
    doc = new QSvgRenderer(file, this);
    connect(doc, SIGNAL(repaintNeeded()),
            this, SLOT(update()));
}

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Member Function Documentation

QSize SvgGLView::sizeHint

(

)

const [virtual]

Reimplemented from QWidget.

Definition at line 139 of file svgview.cpp.

References QSvgRenderer::defaultSize(), doc, and QWidget::sizeHint().

{
    if (doc)
        return doc->defaultSize();
    return QGLWidget::sizeHint();
}

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void SvgGLView::paintEvent

(

QPaintEvent *

event

)

[protected, virtual]

Handles paint events passed in the event parameter. Will cause the virtual paintGL() function to be called.

The widget's rendering context will become the current context and initializeGL() will be called if it hasn't already been called.

Reimplemented from QGLWidget.

Definition at line 133 of file svgview.cpp.

References doc, p, and QSvgRenderer::render().

{
    QPainter p(this);
    doc->render(&p);
}

void SvgGLView::wheelEvent

(

QWheelEvent *

event

)

[protected, virtual]

This event handler, for event event, can be reimplemented in a subclass to receive wheel events for the widget.

If you reimplement this handler, it is very important that you ignore() the event if you do not handle it, so that the widget's parent can interpret it.

The default implementation ignores the event.

See also:

QWheelEvent::ignore(), QWheelEvent::accept(), event(), QWheelEvent

Reimplemented from QWidget.

Definition at line 146 of file svgview.cpp.

References QSvgRenderer::defaultSize(), QWheelEvent::delta(), diff(), doc, QWidget::height(), QSize::height(), int, QWidget::resize(), QWidget::size(), QSize::width(), and QWidget::width().

{
    const double diff = 0.1;
    QSize size = doc->defaultSize();
    int width  = size.width();
    int height = size.height();
    if (e->delta() > 0) {
        width = int(this->width()+this->width()*diff);
        height = int(this->height()+this->height()*diff);
    } else {
        width  = int(this->width()-this->width()*diff);
        height = int(this->height()-this->height()*diff);
    }
    resize(width, height);
}

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Member Data Documentation

QSvgRenderer* SvgGLView::doc [private]

Definition at line 88 of file svgview.h.

Referenced by paintEvent(), sizeHint(), SvgGLView(), and wheelEvent().

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

• examples/painting/svgviewer/svgview.h
• examples/painting/svgviewer/svgview.cpp

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