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112 lines
2.9 KiB
112 lines
2.9 KiB
/* |
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* KFontInst - KDE Font Installer |
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* |
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* Copyright 2003-2007 Craig Drummond <craig@kde.org> |
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* |
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* ---- |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; see the file COPYING. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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*/ |
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#include "ActionLabel.h" |
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#include <KIconLoader> |
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#include <QLabel> |
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#include <QTimer> |
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#include <QPixmap> |
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#include <QMatrix> |
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namespace KFI |
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{ |
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// Borrowed from kolourpaint... |
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static QMatrix matrixWithZeroOrigin(const QMatrix &matrix, int width, int height) |
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{ |
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QRect newRect(matrix.mapRect(QRect(0, 0, width, height))); |
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return QMatrix(matrix.m11(), matrix.m12(), matrix.m21(), matrix.m22(), |
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matrix.dx() - newRect.left(), matrix.dy() - newRect.top()); |
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} |
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static QMatrix rotateMatrix(int width, int height, double angle) |
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{ |
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QMatrix matrix; |
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matrix.translate(width/2, height/2); |
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matrix.rotate(angle); |
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return matrixWithZeroOrigin(matrix, width, height); |
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} |
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static const int constNumIcons=8; |
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static int theUsageCount; |
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static QPixmap *theIcons[constNumIcons]; |
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CActionLabel::CActionLabel(QWidget *parent) |
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: QLabel(parent) |
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{ |
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static const int constIconSize(48); |
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setMinimumSize(constIconSize, constIconSize); |
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setMaximumSize(constIconSize, constIconSize); |
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setAlignment(Qt::AlignCenter); |
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if(0==theUsageCount++) |
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{ |
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QImage img(KIconLoader::global()->loadIcon("application-x-font-ttf", KIconLoader::NoGroup, 32).toImage()); |
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double increment=360.0/constNumIcons; |
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for(int i=0; i<constNumIcons; ++i) |
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theIcons[i]=new QPixmap(QPixmap::fromImage(0==i ? img : img.transformed(rotateMatrix(img.width(), img.height(), increment*i)))); |
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} |
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setPixmap(*theIcons[0]); |
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itsTimer=new QTimer(this); |
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connect(itsTimer, &QTimer::timeout, this, &CActionLabel::rotateIcon); |
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} |
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CActionLabel::~CActionLabel() |
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{ |
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if(0==--theUsageCount) |
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for(int i=0; i<constNumIcons; ++i) |
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{ |
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delete theIcons[i]; |
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theIcons[i]=nullptr; |
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} |
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} |
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void CActionLabel::startAnimation() |
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{ |
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itsCount=0; |
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setPixmap(*theIcons[0]); |
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itsTimer->start(1000/constNumIcons); |
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} |
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void CActionLabel::stopAnimation() |
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{ |
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itsTimer->stop(); |
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itsCount=0; |
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setPixmap(*theIcons[itsCount]); |
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} |
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void CActionLabel::rotateIcon() |
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{ |
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if(++itsCount==constNumIcons) |
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itsCount=0; |
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setPixmap(*theIcons[itsCount]); |
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} |
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} |
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