File indexing completed on 2024-05-12 16:02:30

 /* This file is part of the KDE libraries
    SPDX-FileCopyrightText: 2007 Aurélien Gâteau <agateau@kde.org>
    SPDX-FileCopyrightText: 2012 Jean-Nicolas Artaud <jeannicolasartaud@gmail.com>
    SPDX-FileCopyrightText: 2012 Jarosław Staniek <staniek@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-only
 */
 #include "KoGroupButton.h"
 
 #include <QAction>
 #include <QStyleOptionToolButton>
 #include <QStylePainter>
 
 #include <KLocalizedString>
 
 class Q_DECL_HIDDEN KoGroupButton::Private
 {
 public:
     Private(KoGroupButton *qq, const GroupPosition position) : groupPosition(position)
     {
         // Make the policy closer to QPushButton's default but horizontal shouldn't be Fixed,
         // otherwise spacing gets broken
         qq->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
     }
     GroupPosition groupPosition;
 };
 
 KoGroupButton::KoGroupButton(GroupPosition position, QWidget* parent)
     : KisHighlightedToolButton(parent), d(new Private(this, position))
 {
 }
 
 KoGroupButton::KoGroupButton(QWidget* parent)
     : KisHighlightedToolButton(parent), d(new Private(this, NoGroup))
 {
 }
 
 KoGroupButton::~KoGroupButton()
 {
     delete d;
 }
 
 void KoGroupButton::setGroupPosition(KoGroupButton::GroupPosition groupPosition)
 {
     d->groupPosition = groupPosition;
 }
 
 KoGroupButton::GroupPosition KoGroupButton::groupPosition() const
 {
     return d->groupPosition;
 }
 
 void KoGroupButton::paintEvent(QPaintEvent* event)
 {
     if (groupPosition() == NoGroup) {
         QToolButton::paintEvent(event);
         return;
     }
     QStylePainter painter(this);
     QStyleOptionToolButton opt;
     initStyleOption(&opt);
     QStyleOptionToolButton panelOpt = opt;
 
     // Panel
     QRect& panelRect = panelOpt.rect;
     switch (groupPosition()) {
     case GroupLeft:
         panelRect.setWidth(panelRect.width() * 2);
         break;
     case GroupCenter:
         panelRect.setLeft(panelRect.left() - panelRect.width());
         panelRect.setWidth(panelRect.width() * 3);
         break;
     case GroupRight:
         panelRect.setLeft(panelRect.left() - panelRect.width());
         break;
     case NoGroup:
         Q_ASSERT(0);
     }
     if (autoRaise()) {
         if (!isChecked() && !isDown() && !(panelOpt.state & QStyle::State_MouseOver)) {
             // Use 'pushed' appearance for all buttons, but those that are not really pushed
             // are drawn with less contrast and are toned down.
             panelOpt.state |= (QStyle::State_On | QStyle::State_Sunken);
             QPalette panelPal(panelOpt.palette);
             QColor c;
             c = panelPal.color(QPalette::Button);
             c.setAlpha(50);
             panelPal.setColor(QPalette::Button, c);
             c = panelPal.color(QPalette::Window);
             c.setAlpha(50);
             panelPal.setColor(QPalette::Window, c);
             panelOpt.palette = panelPal;
             painter.setOpacity(0.5);
         }
     } else {
 
         if (!isChecked() && !isDown() && !(panelOpt.state & QStyle::State_MouseOver)) {
 
         } else {
             // only highlight the selected item
             panelOpt.state |= (QStyle::State_On | QStyle::State_Sunken);
             QPalette panelPal(panelOpt.palette);
             QColor c;
             c = panelPal.color(QPalette::Button);
             c.setAlpha(50);
             panelPal.setColor(QPalette::Button, c);
             c = panelPal.color(QPalette::Window);
             c.setAlpha(50);
             panelPal.setColor(QPalette::Window, c);
             panelOpt.palette = panelPal;
             painter.setOpacity(0.5);
         }
     }
 
 
     painter.drawPrimitive(QStyle::PE_PanelButtonTool, panelOpt);
     painter.setOpacity(1.0);
 
     // Separator
     //! @todo make specific fixes for styles such as Cleanlooks if there's practical no alternative
     const int y1 = opt.rect.top() + 1;
     const int y2 = opt.rect.bottom() - 1;
     painter.setOpacity(0.4);
     if (d->groupPosition != GroupRight) {
         const int x = opt.rect.right();
         painter.setPen(QPen(opt.palette.color(QPalette::Dark), 0));
         painter.drawLine(x, y1, x, y2);
     }
     painter.setOpacity(1.0);
 
     // Text
     painter.drawControl(QStyle::CE_ToolButtonLabel, opt);
 
     // Filtering message on tooltip text for CJK to remove accelerators.
     // Quoting ktoolbar.cpp:
     // """
     // CJK languages use more verbose accelerator marker: they add a Latin
     // letter in parenthesis, and put accelerator on that. Hence, the default
     // removal of ampersand only may not be enough there, instead the whole
     // parenthesis construct should be removed. Provide these filtering i18n
     // messages so that translators can use Transcript for custom removal.
     // """
     if (!actions().isEmpty()) {
         QAction* action = actions().first();
         setToolTip(i18nc("@info:tooltip of custom triple button", "%1", action->toolTip()));
     }
 }