502 lines
21 KiB
C++
502 lines
21 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2014 Craig Drummond <craig.p.drummond@gmail.com>
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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 "touchproxystyle.h"
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#include "utils.h"
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#include "gtkstyle.h"
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#include "flickcharm.h"
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#ifdef Q_OS_MAC
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#include "osxstyle.h"
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#endif
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#include <QSpinBox>
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#include <QComboBox>
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#include <QScrollBar>
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#include <QPainter>
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#include <QStyleOptionSpinBox>
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#include <QAbstractScrollArea>
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#include <QStyledItemDelegate>
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#include <QApplication>
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double TouchProxyStyle::constScaleFactor=1.4;
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static const char * constOnCombo="on-combo";
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static bool isOnCombo(const QWidget *w)
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{
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return w && (qobject_cast<const QComboBox *>(w) || isOnCombo(w->parentWidget()));
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}
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static void drawSpinButton(QPainter *painter, const QRect &r, const QColor &col, bool isPlus)
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{
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int length=r.height()*0.5;
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int lineWidth=length<24 ? 2 : 4;
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if (length<(lineWidth*2)) {
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length=lineWidth*2;
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} else if (length%2) {
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length++;
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}
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, false);
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painter->fillRect(r.x()+((r.width()-length)/2), r.y()+((r.height()-lineWidth)/2), length, lineWidth, col);
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if (isPlus) {
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painter->fillRect(r.x()+((r.width()-lineWidth)/2), r.y()+((r.height()-length)/2), lineWidth, length, col);
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}
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painter->restore();
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}
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class ComboItemDelegate : public QStyledItemDelegate
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{
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public:
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ComboItemDelegate(QComboBox *p) : QStyledItemDelegate(p), combo(p) { }
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virtual ~ComboItemDelegate() { }
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QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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QSize sz=QStyledItemDelegate::sizeHint(option, index);
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int minH=option.fontMetrics.height()*2;
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if (sz.height()<minH) {
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sz.setHeight(minH);
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}
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return sz;
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}
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void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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if (GtkStyle::isActive()) {
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QStyleOptionMenuItem opt = getStyleOption(option, index);
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painter->fillRect(option.rect, opt.palette.background());
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combo->style()->drawControl(QStyle::CE_MenuItem, &opt, painter, combo);
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} else {
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QStyledItemDelegate::paint(painter, option, index);
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}
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}
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static bool isSeparator(const QModelIndex &index)
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{
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return index.data(Qt::AccessibleDescriptionRole).toString() == QLatin1String("separator");
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}
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QStyleOptionMenuItem getStyleOption(const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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QStyleOptionMenuItem menuOption;
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QPalette resolvedpalette = option.palette.resolve(QApplication::palette("QMenu"));
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QVariant value = index.data(Qt::ForegroundRole);
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if (value.canConvert<QBrush>()) {
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resolvedpalette.setBrush(QPalette::WindowText, qvariant_cast<QBrush>(value));
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resolvedpalette.setBrush(QPalette::ButtonText, qvariant_cast<QBrush>(value));
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resolvedpalette.setBrush(QPalette::Text, qvariant_cast<QBrush>(value));
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}
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menuOption.palette = resolvedpalette;
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menuOption.state = QStyle::State_None;
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if (combo->window()->isActiveWindow()) {
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menuOption.state = QStyle::State_Active;
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}
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if ((option.state & QStyle::State_Enabled) && (index.model()->flags(index) & Qt::ItemIsEnabled)) {
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menuOption.state |= QStyle::State_Enabled;
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} else {
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menuOption.palette.setCurrentColorGroup(QPalette::Disabled);
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}
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if (option.state & QStyle::State_Selected) {
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menuOption.state |= QStyle::State_Selected;
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}
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menuOption.checkType = QStyleOptionMenuItem::NonExclusive;
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menuOption.checked = combo->currentIndex() == index.row();
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if (isSeparator(index)) {
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menuOption.menuItemType = QStyleOptionMenuItem::Separator;
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} else {
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menuOption.menuItemType = QStyleOptionMenuItem::Normal;
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}
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QVariant variant = index.model()->data(index, Qt::DecorationRole);
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switch (variant.type()) {
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case QVariant::Icon:
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menuOption.icon = qvariant_cast<QIcon>(variant);
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break;
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case QVariant::Color: {
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static QPixmap pixmap(option.decorationSize);
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pixmap.fill(qvariant_cast<QColor>(variant));
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menuOption.icon = pixmap;
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break;
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}
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default:
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menuOption.icon = qvariant_cast<QPixmap>(variant);
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break;
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}
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if (index.data(Qt::BackgroundRole).canConvert<QBrush>()) {
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menuOption.palette.setBrush(QPalette::All, QPalette::Background,
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qvariant_cast<QBrush>(index.data(Qt::BackgroundRole)));
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}
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menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
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.replace(QLatin1Char('&'), QLatin1String("&&"));
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menuOption.tabWidth = 0;
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menuOption.maxIconWidth = option.decorationSize.width() + 4;
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menuOption.menuRect = option.rect;
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menuOption.rect = option.rect;
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menuOption.font = combo->font();
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menuOption.fontMetrics = QFontMetrics(menuOption.font);
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return menuOption;
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}
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QComboBox *combo;
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};
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TouchProxyStyle::TouchProxyStyle(int modView, bool touchSpin, bool gtkOverlayStyleScrollbar)
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: touchStyleSpin(touchSpin)
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, sbarPlainViewWidth(-1)
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{
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spinButtonRatio=touchSpin && Utils::touchFriendly() ? 1.5 : 1.25;
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if (Utils::touchFriendly()) {
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sbarType=SB_Thin;
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sbarPlainViewWidth=Utils::scaleForDpi(2);
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} else if (gtkOverlayStyleScrollbar) {
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sbarType=SB_Gtk;
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sbarPlainViewWidth=QApplication::fontMetrics().height()/1.75;
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} else {
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sbarType=SB_Standard;
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}
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setModViewFrame(modView && (SB_Gtk==sbarType || !qApp->style()->styleHint(SH_ScrollView_FrameOnlyAroundContents, 0, 0, 0)) ? modView : 0);
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}
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TouchProxyStyle::~TouchProxyStyle()
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{
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}
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QSize TouchProxyStyle::sizeFromContents(ContentsType type, const QStyleOption *option, const QSize &size, const QWidget *widget) const
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{
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QSize sz=baseStyle()->sizeFromContents(type, option, size, widget);
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if (SB_Standard!=sbarType && CT_ScrollBar==type) {
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if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
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int extent(pixelMetric(PM_ScrollBarExtent, option, widget)),
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sliderMin(pixelMetric(PM_ScrollBarSliderMin, option, widget));
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if (sb->orientation == Qt::Horizontal) {
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sz = QSize(sliderMin, extent);
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} else {
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sz = QSize(extent, sliderMin);
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}
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}
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}
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if (touchStyleSpin && CT_SpinBox==type) {
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if (const QStyleOptionSpinBox *spinBox = qstyleoption_cast<const QStyleOptionSpinBox *>(option)) {
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if (QAbstractSpinBox::NoButtons!=spinBox->buttonSymbols) {
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#if QT_VERSION < 0x050200
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sz += QSize(0, 1);
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#endif
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#if QT_VERSION >= 0x050000
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// Qt5 does not seem to be taking special value, or suffix, into account when calculatng width...
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if (widget && qobject_cast<const QSpinBox *>(widget)) {
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const QSpinBox *spin=static_cast<const QSpinBox *>(widget);
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QString special=spin->specialValueText();
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int minWidth=0;
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if (!special.isEmpty()) {
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minWidth=option->fontMetrics.width(special+QLatin1String(" "));
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}
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QString suffix=spin->suffix()+QLatin1String(" ");
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minWidth=qMax(option->fontMetrics.width(QString::number(spin->minimum())+suffix), minWidth);
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minWidth=qMax(option->fontMetrics.width(QString::number(spin->maximum())+suffix), minWidth);
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if (minWidth>0) {
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int frameWidth=baseStyle()->pixelMetric(QStyle::PM_DefaultFrameWidth, option, 0);
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int buttonWidth=(sz.height()-(frameWidth*2))*spinButtonRatio;
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minWidth=((minWidth+(buttonWidth+frameWidth)*2)*1.05)+0.5;
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if (sz.width()<minWidth) {
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sz.setWidth(minWidth);
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}
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}
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} else
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#endif
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if (!GtkStyle::isActive()) {
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sz.setWidth(sz.width()+6);
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}
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}
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}
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} else if (CT_ToolButton==type && Utils::touchFriendly()) {
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if (const QStyleOptionToolButton *tb = qstyleoption_cast<const QStyleOptionToolButton *>(option)) {
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if (tb->text.isEmpty()) {
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sz.setWidth(sz.width()*constScaleFactor);
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}
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}
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}
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return sz;
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}
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int TouchProxyStyle::styleHint(StyleHint hint, const QStyleOption *option, const QWidget *widget, QStyleHintReturn *returnData) const
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{
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if (SH_ScrollView_FrameOnlyAroundContents==hint && SB_Standard!=sbarType) {
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return false;
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}
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return baseStyle()->styleHint(hint, option, widget, returnData);
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}
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int TouchProxyStyle::pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
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{
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if (SB_Standard!=sbarType && PM_ScrollBarExtent==metric) {
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return sbarPlainViewWidth;
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}
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return baseStyle()->pixelMetric(metric, option, widget);
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}
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QRect TouchProxyStyle::subControlRect(ComplexControl control, const QStyleOptionComplex *option, SubControl subControl, const QWidget *widget) const
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{
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if (SB_Standard!=sbarType && CC_ScrollBar==control) {
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if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
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QRect ret;
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bool horizontal(Qt::Horizontal==sb->orientation);
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int sbextent(pixelMetric(PM_ScrollBarExtent, sb, widget)),
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sliderMaxLength(horizontal ? sb->rect.width() : sb->rect.height()),
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sliderMinLength(pixelMetric(PM_ScrollBarSliderMin, sb, widget)),
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sliderLength;
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if (sb->maximum != sb->minimum) {
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uint valueRange = sb->maximum - sb->minimum;
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sliderLength = (sb->pageStep * sliderMaxLength) / (valueRange + sb->pageStep);
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if (sliderLength < sliderMinLength) {
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sliderLength = sliderMinLength;
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}
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if (sliderLength > sliderMaxLength) {
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sliderLength = sliderMaxLength;
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}
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} else {
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sliderLength = sliderMaxLength;
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}
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int sliderstart(sliderPositionFromValue(sb->minimum, sb->maximum, sb->sliderPosition, sliderMaxLength - sliderLength, sb->upsideDown));
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// Subcontrols
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switch(subControl)
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{
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case SC_ScrollBarSubLine:
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case SC_ScrollBarAddLine:
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return QRect();
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case SC_ScrollBarSubPage:
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if (horizontal) {
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ret.setRect(0, 0, sliderstart, sbextent);
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} else {
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ret.setRect(0, 0, sbextent, sliderstart);
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}
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break;
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case SC_ScrollBarAddPage:
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if (horizontal) {
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ret.setRect(sliderstart + sliderLength, 0, sliderMaxLength - sliderstart - sliderLength, sbextent);
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} else {
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ret.setRect(0, sliderstart + sliderLength, sbextent, sliderMaxLength - sliderstart - sliderLength);
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}
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break;
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case SC_ScrollBarGroove:
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ret=QRect(0, 0, sb->rect.width(), sb->rect.height());
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break;
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case SC_ScrollBarSlider:
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if (horizontal) {
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ret=QRect(sliderstart, 0, sliderLength, sbextent);
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} else {
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ret=QRect(0, sliderstart, sbextent, sliderLength);
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}
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break;
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default:
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ret = baseStyle()->subControlRect(control, option, subControl, widget);
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break;
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}
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return visualRect(sb->direction/*Qt::LeftToRight*/, sb->rect, ret);
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}
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}
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if (touchStyleSpin && CC_SpinBox==control) {
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if (const QStyleOptionSpinBox *spinBox = qstyleoption_cast<const QStyleOptionSpinBox *>(option)) {
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if (QAbstractSpinBox::NoButtons!=spinBox->buttonSymbols) {
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int border=2;
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int padBeforeButtons=GtkStyle::isActive() ? 0 : 2;
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int internalHeight=spinBox->rect.height()-(border*2);
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int internalWidth=internalHeight*spinButtonRatio;
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switch (subControl) {
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case SC_SpinBoxUp:
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return Qt::LeftToRight==spinBox->direction
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? QRect(spinBox->rect.width()-(internalWidth+border), border, internalWidth, internalHeight)
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: QRect(border, border, internalWidth, internalHeight);
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case SC_SpinBoxDown:
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return Qt::LeftToRight==spinBox->direction
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? QRect(spinBox->rect.width()-((internalWidth*2)+border), border, internalWidth, internalHeight)
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: QRect(internalWidth+border, border, internalWidth, internalHeight);
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case SC_SpinBoxEditField:
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return Qt::LeftToRight==spinBox->direction
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? QRect(border, border, spinBox->rect.width()-((internalWidth*2)+border+padBeforeButtons), internalHeight)
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: QRect(((internalWidth*2)+border), border, spinBox->rect.width()-((internalWidth*2)+border+padBeforeButtons), internalHeight);
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case SC_SpinBoxFrame:
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return spinBox->rect;
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default:
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break;
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}
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}
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}
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}
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return baseStyle()->subControlRect(control, option, subControl, widget);
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}
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void TouchProxyStyle::drawComplexControl(ComplexControl control, const QStyleOptionComplex *option, QPainter *painter, const QWidget *widget) const
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{
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if (SB_Standard!=sbarType && CC_ScrollBar==control) {
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if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
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QRect r=option->rect;
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QRect slider=subControlRect(control, option, SC_ScrollBarSlider, widget);
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if (widget && widget->property(constOnCombo).toBool()) {
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painter->fillRect(r, QApplication::palette().color(QPalette::Background)); // option->palette.background());
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} else if (!widget || widget->testAttribute(Qt::WA_OpaquePaintEvent)) {
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if (option->palette.base().color()==Qt::transparent) {
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painter->fillRect(r, QApplication::palette().color(QPalette::Base));
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} else {
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painter->fillRect(r, option->palette.base());
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}
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}
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if (slider.isValid()) {
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bool inactive=!(sb->activeSubControls&SC_ScrollBarSlider && (option->state&State_MouseOver || option->state&State_Sunken));
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#ifdef Q_OS_MAC
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QColor col(OSXStyle::self()->viewPalette().highlight().color());
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#else
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QColor col(option->palette.highlight().color());
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#endif
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if (!(option->state&State_Active)) {
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col=col.darker(115);
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}
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if (SB_Gtk==sbarType) {
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int adjust=inactive ? 3 : 1;
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if (Qt::Horizontal==sb->orientation) {
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slider.adjust(1, adjust, -1, -adjust);
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} else {
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slider.adjust(adjust, 1, -adjust, -1);
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}
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int dimension=(Qt::Horizontal==sb->orientation ? slider.height() : slider.width());
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QPainterPath path=Utils::buildPath(QRectF(slider.x()+0.5, slider.y()+0.5, slider.width()-1, slider.height()-1),
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dimension>6 ? (dimension/4.0) : (dimension/8.0));
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, true);
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painter->fillPath(path, col);
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painter->setPen(col);
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painter->drawPath(path);
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painter->restore();
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} else {
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painter->fillRect(slider, col);
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}
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}
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return;
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}
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}
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if (touchStyleSpin && CC_SpinBox==control) {
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if (const QStyleOptionSpinBox *spinBox = qstyleoption_cast<const QStyleOptionSpinBox *>(option)) {
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if (QAbstractSpinBox::NoButtons!=spinBox->buttonSymbols) {
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QStyleOptionFrame opt;
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opt.state=spinBox->state;
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opt.state|=State_Sunken;
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opt.rect=spinBox->rect;
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opt.palette=spinBox->palette;
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opt.lineWidth=baseStyle()->pixelMetric(QStyle::PM_DefaultFrameWidth, option, widget);
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opt.midLineWidth=0;
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opt.fontMetrics=spinBox->fontMetrics;
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opt.direction=spinBox->direction;
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baseStyle()->drawPrimitive(PE_PanelLineEdit, &opt, painter, 0);
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QRect plusRect=subControlRect(CC_SpinBox, spinBox, SC_SpinBoxUp, widget);
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QRect minusRect=subControlRect(CC_SpinBox, spinBox, SC_SpinBoxDown, widget);
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QColor separatorColor(spinBox->palette.foreground().color());
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separatorColor.setAlphaF(0.15);
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painter->setPen(separatorColor);
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if (Qt::LeftToRight==spinBox->direction) {
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painter->drawLine(plusRect.topLeft(), plusRect.bottomLeft());
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painter->drawLine(minusRect.topLeft(), minusRect.bottomLeft());
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} else {
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painter->drawLine(plusRect.topRight(), plusRect.bottomRight());
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painter->drawLine(minusRect.topRight(), minusRect.bottomRight());
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}
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if (option->state&State_Sunken) {
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QRect fillRect;
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if (spinBox->activeSubControls&SC_SpinBoxUp) {
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fillRect=plusRect;
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} else if (spinBox->activeSubControls&SC_SpinBoxDown) {
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fillRect=minusRect;
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}
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if (!fillRect.isEmpty()) {
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QColor col=spinBox->palette.highlight().color();
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col.setAlphaF(0.1);
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painter->fillRect(fillRect.adjusted(1, 1, -1, -1), col);
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}
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}
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drawSpinButton(painter, plusRect,
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spinBox->palette.color(spinBox->state&State_Enabled && (spinBox->stepEnabled&QAbstractSpinBox::StepUpEnabled)
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? QPalette::Current : QPalette::Disabled, QPalette::Text), true);
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drawSpinButton(painter, minusRect,
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spinBox->palette.color(spinBox->state&State_Enabled && (spinBox->stepEnabled&QAbstractSpinBox::StepDownEnabled)
|
|
? QPalette::Current : QPalette::Disabled, QPalette::Text), false);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
baseStyle()->drawComplexControl(control, option, painter, widget);
|
|
}
|
|
|
|
void TouchProxyStyle::drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const
|
|
{
|
|
if (PE_PanelScrollAreaCorner==element && option && SB_Standard!=sbarType) {
|
|
painter->fillRect(option->rect, option->palette.brush(QPalette::Base));
|
|
} else {
|
|
ProxyStyle::drawPrimitive(element, option, painter, widget);
|
|
}
|
|
}
|
|
|
|
void TouchProxyStyle::polish(QWidget *widget)
|
|
{
|
|
if (SB_Standard!=sbarType) {
|
|
if (qobject_cast<QScrollBar *>(widget)) {
|
|
if (isOnCombo(widget)) {
|
|
widget->setProperty(constOnCombo, true);
|
|
}
|
|
} else if (qobject_cast<QAbstractScrollArea *>(widget) && widget->inherits("QComboBoxListView")) {
|
|
QAbstractScrollArea *sa=static_cast<QAbstractScrollArea *>(widget);
|
|
QWidget *sb=sa->horizontalScrollBar();
|
|
if (sb) {
|
|
sb->setProperty(constOnCombo, true);
|
|
}
|
|
sb=sa->verticalScrollBar();
|
|
if (sb) {
|
|
sb->setProperty(constOnCombo, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (Utils::touchFriendly()) {
|
|
if (qobject_cast<QAbstractScrollArea *>(widget)) {
|
|
FlickCharm::self()->activateOn(widget);
|
|
} else if (qobject_cast<QComboBox *>(widget)) {
|
|
QComboBox *combo=static_cast<QComboBox *>(widget);
|
|
combo->setItemDelegate(new ComboItemDelegate(combo));
|
|
}
|
|
}
|
|
ProxyStyle::polish(widget);
|
|
}
|