/* This file is part of the KDE libraries Copyright (C) 2001 Frerich Raabe This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License version 2 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "karrowbutton.h" #include #include #include #include class KArrowButtonPrivate { public: Qt::ArrowType arrow; }; KArrowButton::KArrowButton(QWidget *parent, Qt::ArrowType arrow) : QPushButton(parent),d(new KArrowButtonPrivate()) { d->arrow = arrow; } KArrowButton::~KArrowButton() { delete d; } QSize KArrowButton::sizeHint() const { return QSize( 12, 12 ); } void KArrowButton::setArrowType(Qt::ArrowType a) { if (d->arrow != a) { d->arrow = a; repaint(); } } Qt::ArrowType KArrowButton::arrowType() const { return d->arrow; } void KArrowButton::paintEvent(QPaintEvent*) { QPainter p(this); const unsigned int arrowSize = 8; const unsigned int margin = 2; QStyleOptionFrame opt; opt.init(this); opt.lineWidth = 2; opt.midLineWidth = 0; p.fillRect( rect(), palette().brush( QPalette::Background ) ); style()->drawPrimitive( QStyle::PE_Frame, &opt, &p, this); if (d->arrow == Qt::NoArrow) return; if (static_cast(width()) < arrowSize + margin || static_cast(height()) < arrowSize + margin) return; // don't draw arrows if we are too small unsigned int x = 0, y = 0; if (d->arrow == Qt::DownArrow) { x = (width() - arrowSize) / 2; y = height() - (arrowSize + margin); } else if (d->arrow == Qt::UpArrow) { x = (width() - arrowSize) / 2; y = margin; } else if (d->arrow == Qt::RightArrow) { x = width() - (arrowSize + margin); y = (height() - arrowSize) / 2; } else { // arrowType == LeftArrow x = margin; y = (height() - arrowSize) / 2; } if (isDown()) { x++; y++; } QStyle::PrimitiveElement e = QStyle::PE_IndicatorArrowLeft; switch (d->arrow) { case Qt::LeftArrow: e = QStyle::PE_IndicatorArrowLeft; break; case Qt::RightArrow: e = QStyle::PE_IndicatorArrowRight; break; case Qt::UpArrow: e = QStyle::PE_IndicatorArrowUp; break; case Qt::DownArrow: e = QStyle::PE_IndicatorArrowDown; break; case Qt::NoArrow: assert( 0 ); break; } opt.state |= QStyle::State_Enabled; opt.rect = QRect( x, y, arrowSize, arrowSize); style()->drawPrimitive( e, &opt, &p, this ); } #include "karrowbutton.moc"