qdecoration_qws.cpp

Go to the documentation of this file.

/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qdecoration_qws.h"

#include "qapplication.h"
#include "qdrawutil.h"
#include "qpainter.h"
#include "qregion.h"
#include "qwhatsthis.h"

#include "qmenu.h"
#include "private/qwidget_p.h"
#include "qwsmanager_qws.h"

QT_BEGIN_NAMESPACE

int QDecoration::regionAt(const QWidget *w, const QPoint &point)
{
    int regions[] = {
        TopLeft, Top, TopRight, Left, Right, BottomLeft, Bottom, BottomRight, // Borders first
        Menu, Title, Help, Minimize, Normalize, Maximize, Close,                         // then buttons
        None
    };

//     char *regions_str[] = {
//         "TopLeft", "Top", "TopRight", "Left", "Right", "BottomLeft", "Bottom", "BottomRight",
//         "Menu", "Title", "Help", "Minimize", "Normalize", "Maximize", "Close",
//         "None"
//     };

    // First check to see if within all regions at all
    QRegion reg = region(w, w->geometry(), All);
    if (!reg.contains(point)) {
        return None;
    }

    int i = 0;
    while (regions[i]) {
        reg = region(w, w->geometry(), regions[i]);
        if (reg.contains(point)) {
//            qDebug("In region %s", regions_str[i]);
            return regions[i];
        }
        ++i;
    }
    return None;
}

#ifndef QT_NO_MENU

void QDecoration::buildSysMenu(QWidget *widget, QMenu *menu)
{
    QDecorationAction *act = new QDecorationAction(QLatin1String("Restore"),
                                                   menu, Maximize);
    act->setEnabled(widget->windowState() & Qt::WindowMaximized);
    menu->addAction(act);
    act = new QDecorationAction(QLatin1String("Move"), menu, Move);
    act->setEnabled(!(widget->windowState() & Qt::WindowMaximized));
    menu->addAction(act);
    menu->addAction(new QDecorationAction(QLatin1String("Size"), menu, Resize));
    act = new QDecorationAction(QLatin1String("Minimize"), menu, Minimize);
    menu->addAction(act);
    act = new QDecorationAction(QLatin1String("Maximize"), menu, Maximize);
    act->setDisabled(widget->windowState() & Qt::WindowMaximized);
    menu->addAction(act);
    menu->addSeparator();
    menu->addAction(new QDecorationAction(QLatin1String("Close"), menu, Close));
}

void QDecoration::menuTriggered(QWidget *widget, QAction *action)
{
    QDecorationAction *decAction = static_cast<QDecorationAction *>(action);
    regionClicked(widget, decAction->reg);
}
#endif // QT_NO_MENU

void QDecoration::regionClicked(QWidget *widget, int reg)
{
    switch(reg) {
    case Move:
        startMove(widget);
        break;
    case Resize:
        startResize(widget);
        break;
    case Help:
#ifndef QT_NO_WHATSTHIS
        if (QWhatsThis::inWhatsThisMode())
            QWhatsThis::leaveWhatsThisMode();
        else
            QWhatsThis::enterWhatsThisMode();
#endif
        break;
    case Close:
        widget->close();
        break;
    case Normalize:
        widget->showNormal();
        break;
    case Maximize:
        if (widget->windowState() & Qt::WindowMaximized)
            widget->showNormal();
        else
            widget->showMaximized();
        break;
    }
}

void QDecoration::regionDoubleClicked(QWidget *widget, int reg)
{
    switch(reg)
    {
        case Title: {
            if (widget->windowState() & Qt::WindowMaximized)
                widget->showNormal();
            else
                widget->showMaximized();
            break;
        }
    }
}

void QDecoration::startMove(QWidget *widget)
{
#ifdef QT_NO_QWS_MANAGER
    Q_UNUSED(widget);
#else
    QWSManager *manager = widget->d_func()->topData()->qwsManager;
    if (manager)
        manager->startMove();
#endif
}

void QDecoration::startResize(QWidget *widget)
{
#ifdef QT_NO_QWS_MANAGER
    Q_UNUSED(widget);
#else
    QWSManager *manager = widget->d_func()->topData()->qwsManager;
    if (manager)
        manager->startResize();
#endif
}


QT_END_NAMESPACE