QWindowsVistaAnimation Class Reference

#include <qwindowsvistastyle_p.h>

Inheritance diagram for QWindowsVistaAnimation:

Public Functions
virtual void	paint (QPainter *painter, const QStyleOption *option)
	QWindowsVistaAnimation ()
bool	running () const
void	setRunning (bool val)
void	setStartTime (const QTime &startTime)
void	setWidget (QWidget *widget)
const QTime &	startTime () const
QWidget *	widget () const
virtual	~QWindowsVistaAnimation ()

Protected Functions
void	drawBlendedImage (QPainter *painter, QRect rect, float value)

Protected Variables
QImage	_primaryImage
bool	_running
QImage	_secondaryImage
QTime	_startTime
QImage	_tempImage
QPointer< QWidget >	_widget

Detailed Description

Definition at line 140 of file qwindowsvistastyle_p.h.

Constructors and Destructors

QWindowsVistaAnimation()

QWindowsVistaAnimation::QWindowsVistaAnimation ( )

inline

Definition at line 143 of file qwindowsvistastyle_p.h.

: _running(true) { }

~QWindowsVistaAnimation()

virtual QWindowsVistaAnimation::~QWindowsVistaAnimation ( )

inlinevirtual

Definition at line 144 of file qwindowsvistastyle_p.h.

{ }

Functions

drawBlendedImage()

void QWindowsVistaAnimation::drawBlendedImage ( QPainter *  painter, QRect  rect, float  alpha  )

protected

Warning

This function is not part of the public interface.

Helperfunction to paint the current transition state between two animation frames.

The result is a blended image consisting of ((alpha)*_primaryImage)

• ((1-alpha)*_secondaryImage)

Definition at line 216 of file qwindowsvistastyle.cpp.

Referenced by setStartTime().

                                                                                        {
    if (_secondaryImage.isNull() || _primaryImage.isNull())
        return;

    if (_tempImage.isNull())
        _tempImage = _secondaryImage;

    const int a = qRound(alpha*256);
    const int ia = 256 - a;
    const int sw = _primaryImage.width();
    const int sh = _primaryImage.height();
    const int bpl = _primaryImage.bytesPerLine();
    switch(_primaryImage.depth()) {
    case 32:
        {
            uchar *mixed_data = _tempImage.bits();
            const uchar *back_data = _primaryImage.bits();
            const uchar *front_data = _secondaryImage.bits();
            for (int sy = 0; sy < sh; sy++) {
                quint32* mixed = (quint32*)mixed_data;
                const quint32* back = (const quint32*)back_data;
                const quint32* front = (const quint32*)front_data;
                for (int sx = 0; sx < sw; sx++) {
                    quint32 bp = back[sx];
                    quint32 fp = front[sx];
                    mixed[sx] =  qRgba ((qRed(bp)*ia + qRed(fp)*a)>>8,
                                        (qGreen(bp)*ia + qGreen(fp)*a)>>8,
                                        (qBlue(bp)*ia + qBlue(fp)*a)>>8,
                                        (qAlpha(bp)*ia + qAlpha(fp)*a)>>8);
                }
                mixed_data += bpl;
                back_data += bpl;
                front_data += bpl;
            }
        }
    default:
        break;
    }
    painter->drawImage(rect, _tempImage);
}

paint()

void QWindowsVistaAnimation::paint ( QPainter *  painter, const QStyleOption *  option  )

virtual

Reimplemented in QWindowsVistaPulse, and QWindowsVistaTransition.

Definition at line 201 of file qwindowsvistastyle.cpp.

Referenced by QWindowsVistaStyle::drawControl(), QWindowsVistaStyle::drawPrimitive(), QWindowsVistaPulse::setAlternateImage(), QWindowsVistaTransition::setEndImage(), and setStartTime().

{
    Q_UNUSED(option);
    Q_UNUSED(painter);
}

running()

bool QWindowsVistaAnimation::running ( ) const

inline

Definition at line 146 of file qwindowsvistastyle_p.h.

{ return _running; }

setRunning()

void QWindowsVistaAnimation::setRunning ( bool  val )

inline

Definition at line 148 of file qwindowsvistastyle_p.h.

{ _running = val; }

setStartTime()

void QWindowsVistaAnimation::setStartTime ( const QTime &  startTime )

inline

Definition at line 150 of file qwindowsvistastyle_p.h.

Referenced by QWindowsVistaStyle::drawComplexControl(), QWindowsVistaStyle::drawControl(), and QWindowsVistaStyle::drawPrimitive().

{ _startTime = startTime; }

setWidget()

void QWindowsVistaAnimation::setWidget ( QWidget *  widget )

inline

Definition at line 149 of file qwindowsvistastyle_p.h.

Referenced by QWindowsVistaStyle::drawComplexControl(), QWindowsVistaStyle::drawControl(), and QWindowsVistaStyle::drawPrimitive().

{ _widget = widget; }

startTime()

const QTime& QWindowsVistaAnimation::startTime ( ) const

inline

Definition at line 147 of file qwindowsvistastyle_p.h.

Referenced by setStartTime().

{ return _startTime; }

widget()

QWidget* QWindowsVistaAnimation::widget ( ) const

inline

Definition at line 145 of file qwindowsvistastyle_p.h.

Referenced by setWidget(), QWindowsVistaStylePrivate::startAnimation(), and QWindowsVistaStylePrivate::widgetAnimation().

{ return _widget; }

Properties

_primaryImage

QImage QWindowsVistaAnimation::_primaryImage

protected

Definition at line 157 of file qwindowsvistastyle_p.h.

Referenced by QWindowsVistaPulse::setPrimaryImage(), and QWindowsVistaTransition::setStartImage().

_running

bool QWindowsVistaAnimation::_running

protected

Definition at line 160 of file qwindowsvistastyle_p.h.

Referenced by running(), and setRunning().

_secondaryImage

QImage QWindowsVistaAnimation::_secondaryImage

protected

Definition at line 158 of file qwindowsvistastyle_p.h.

Referenced by QWindowsVistaPulse::setAlternateImage(), and QWindowsVistaTransition::setEndImage().

_startTime

QTime QWindowsVistaAnimation::_startTime

protected

Definition at line 155 of file qwindowsvistastyle_p.h.

Referenced by setStartTime(), and startTime().

_tempImage

QImage QWindowsVistaAnimation::_tempImage

protected

Definition at line 159 of file qwindowsvistastyle_p.h.

_widget

QPointer<QWidget> QWindowsVistaAnimation::_widget

protected

Definition at line 156 of file qwindowsvistastyle_p.h.

Referenced by setWidget(), and widget().

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

• /src/gui/styles/qwindowsvistastyle_p.h
• /src/gui/styles/qwindowsvistastyle.cpp