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/*
* Cantata
*
* Copyright (c) 2011-2022 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 "gtkstyle.h"
#include "config.h"
#include "proxystyle.h"
#include "utils.h"
#include <QApplication>
#include <QCache>
#include <QFile>
#include <QPainter>
#include <QProcess>
#include <QTextStream>
#include <qglobal.h>
#if defined Q_OS_WIN || defined Q_OS_MAC || defined QT_NO_STYLE_GTK
#define NO_GTK_SUPPORT
#endif
bool GtkStyle::isActive()
{
static bool usingGtkStyle = false;
#if defined Q_OS_WIN || defined Q_OS_MAC || defined QT_NO_STYLE_GTK
static bool init = false;
if (!init) {
init = true;
usingGtkStyle = QApplication::style()->inherits("QGtkStyle");
if (usingGtkStyle) {
QCoreApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
}
}
#endif
return usingGtkStyle;
}
void GtkStyle::drawSelection(const QStyleOptionViewItem& opt, QPainter* painter, double opacity)
{
static const int constMaxDimension = 32;
static QCache<QString, QPixmap> cache(30000);
if (opt.rect.width() < 2 || opt.rect.height() < 2) {
return;
}
int width = qMin(constMaxDimension, opt.rect.width());
QString key = QString::number(width) + QChar(':') + QString::number(opt.rect.height());
QPixmap* pix = cache.object(key);
if (!pix) {
pix = new QPixmap(width, opt.rect.height());
QStyleOptionViewItem styleOpt(opt);
pix->fill(Qt::transparent);
QPainter p(pix);
styleOpt.state = opt.state;
styleOpt.state &= ~(QStyle::State_Selected | QStyle::State_MouseOver);
styleOpt.state |= QStyle::State_Selected | QStyle::State_Enabled | QStyle::State_Active;
styleOpt.viewItemPosition = QStyleOptionViewItem::OnlyOne;
styleOpt.rect = QRect(0, 0, opt.rect.width(), opt.rect.height());
QApplication::style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &styleOpt, &p, nullptr);
p.end();
cache.insert(key, pix, pix->width() * pix->height());
}
double opacityB4 = painter->opacity();
painter->setOpacity(opacity);
if (opt.rect.width() > pix->width()) {
int half = qMin(opt.rect.width() >> 1, pix->width() >> 1);
painter->drawPixmap(opt.rect.x(), opt.rect.y(), pix->copy(0, 0, half, pix->height()));
if ((half * 2) != opt.rect.width()) {
painter->drawTiledPixmap(opt.rect.x() + half, opt.rect.y(), (opt.rect.width() - ((2 * half))), opt.rect.height(), pix->copy(half - 1, 0, 1, pix->height()));
}
painter->drawPixmap((opt.rect.x() + opt.rect.width()) - half, opt.rect.y(), pix->copy(half, 0, half, pix->height()));
}
else {
painter->drawPixmap(opt.rect, *pix);
}
painter->setOpacity(opacityB4);
}
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