Files
cantata/widgets/toolbutton.cpp
2014-05-01 20:45:00 +00:00

138 lines
4.1 KiB
C++

/*
* Cantata
*
* Copyright (c) 2011-2014 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "toolbutton.h"
#include "icon.h"
#include "gtkstyle.h"
#include "config.h"
#include "utils.h"
#include <QMenu>
#include <QStylePainter>
#include <QStyleOptionToolButton>
#include <QApplication>
#include <QPainter>
#include <QPainterPath>
const double ToolButton::constTouchScaleFactor=1.334;
#ifdef Q_OS_MAC
static QPainterPath buildPath(const QRectF &r, double radius)
{
QPainterPath path;
double diameter(radius*2);
path.moveTo(r.x()+r.width(), r.y()+r.height()-radius);
path.arcTo(r.x()+r.width()-diameter, r.y(), diameter, diameter, 0, 90);
path.arcTo(r.x(), r.y(), diameter, diameter, 90, 90);
path.arcTo(r.x(), r.y()+r.height()-diameter, diameter, diameter, 180, 90);
path.arcTo(r.x()+r.width()-diameter, r.y()+r.height()-diameter, diameter, diameter, 270, 90);
return path;
}
#endif
ToolButton::ToolButton(QWidget *parent)
: QToolButton(parent)
#ifdef USE_SYSTEM_MENU_ICON
, hideMenuIndicator(GtkStyle::isActive())
#else
, hideMenuIndicator(true)
#endif
{
Icon::init(this);
#ifdef Q_OS_MAC
setStyleSheet("QToolButton {border: 0}");
#endif
setFocusPolicy(Qt::NoFocus);
}
void ToolButton::paintEvent(QPaintEvent *e)
{
#ifdef Q_OS_MAC
if (isDown() || isChecked()) {
QPainter p(this);
QColor col(palette().color(QPalette::WindowText));
QRect r(rect());
QPainterPath path=buildPath(QRectF(r.x()+1.5, r.y()+0.5, r.width()-2, r.height()-1), 2.5);
p.setRenderHint(QPainter::Antialiasing, true);
p.setPen(col);
p.drawPath(path);
col.setAlphaF(0.1);
p.fillPath(path, col);
}
#endif
#if QT_VERSION > 0x050000
// Hack to work-around Qt5 sometimes leaving toolbutton in 'raised' state.
QStylePainter p(this);
QStyleOptionToolButton opt;
initStyleOption(&opt);
if (hideMenuIndicator) {
opt.features=QStyleOptionToolButton::None;
}
if (opt.state&QStyle::State_MouseOver && this!=QApplication::widgetAt(QCursor::pos())) {
opt.state&=~QStyle::State_MouseOver;
}
p.drawComplexControl(QStyle::CC_ToolButton, opt);
#else
if (menu() && hideMenuIndicator) {
QStylePainter p(this);
QStyleOptionToolButton opt;
initStyleOption(&opt);
opt.features=QStyleOptionToolButton::None;
p.drawComplexControl(QStyle::CC_ToolButton, opt);
} else {
QToolButton::paintEvent(e);
}
#endif
}
QSize ToolButton::sizeHint() const
{
if (sh.isValid()) {
return sh;
}
ensurePolished();
QSize plainSize;
QSize menuSize;
if (menu()) {
QStyleOptionToolButton opt;
initStyleOption(&opt);
opt.features=QStyleOptionToolButton::None;
plainSize = style()->sizeFromContents(QStyle::CT_ToolButton, &opt, opt.iconSize, this).expandedTo(QApplication::globalStrut());
menuSize = QToolButton::sizeHint();
} else {
plainSize = menuSize = QToolButton::sizeHint();
}
int sz=qMax(plainSize.width(), plainSize.height());
sh=QSize(Utils::touchFriendly() ? sz*constTouchScaleFactor : (hideMenuIndicator ? sz : menuSize.width()), sz);
return sh;
}
void ToolButton::setMenu(QMenu *m)
{
QToolButton::setMenu(m);
sh=QSize();
setPopupMode(InstantPopup);
}