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path: root/src/plugins/vcsbase/vcsbaseeditorparameterwidget.cpp
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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#include "vcsbaseeditorparameterwidget.h"

#include <QtGui/QToolButton>
#include <QtGui/QHBoxLayout>

#include <QtCore/QDebug>

namespace VCSBase {
namespace Internal {

/*!
    \class VCSBase::Internal::VCSBaseEditorParameterToggleButton

    \brief ToggleButton to be inserted into VCSBase::VCSBaseEditorParameterWidget

    Inserts a single option into the argument list depending on whether it is checked.
*/

class VCSBaseEditorParameterToggleButton : public QToolButton
{
    Q_OBJECT
public:
    explicit VCSBaseEditorParameterToggleButton(QWidget *parent = 0);

    void applyToArguments(QStringList *w) const;
    void setFromArguments(const QStringList &a);

    void setOption(const QString &o)  { m_option = o; }
    QString option() const { return m_option; }

signals:
    void changed();

private:
    QString m_option;
};

VCSBaseEditorParameterToggleButton::VCSBaseEditorParameterToggleButton(QWidget *parent) :
    QToolButton(parent)
{
    setCheckable(true);
    connect(this, SIGNAL(toggled(bool)), this, SIGNAL(changed()));
}

void VCSBaseEditorParameterToggleButton::applyToArguments(QStringList *a) const
{
    if (isChecked()) {
        if (!a->contains(m_option))
            a->append(m_option);
    } else {
        a->removeAll(m_option);
    }
}

void VCSBaseEditorParameterToggleButton::setFromArguments(const QStringList &a)
{
    setChecked(a.contains(m_option));
}

} // namespace Internal

class VCSBaseEditorParameterWidgetPrivate
{
public:
    VCSBaseEditorParameterWidgetPrivate() : m_layout(0) {}

    QStringList m_baseArguments;
    QHBoxLayout *m_layout;
    QList<Internal::VCSBaseEditorParameterToggleButton *> m_toggles;
};

/*!
    \class VCSBase::VCSBaseEditorParameterWidget

    \brief A toolbar-like widget for use with VCSBase::VCSBaseEditor::setConfigurationWidget()
    influencing for example the generation of VCS diff output.

    The widget maintains a list of command line arguments (starting from baseArguments())
    which are set according to the state of the inside widgets. A change signal is provided
    that should trigger the rerun of the VCS operation.
*/

VCSBaseEditorParameterWidget::VCSBaseEditorParameterWidget(QWidget *parent) :
    QWidget(parent), d(new VCSBaseEditorParameterWidgetPrivate)
{
    d->m_layout = new QHBoxLayout(this);
    d->m_layout->setContentsMargins(3, 0, 3, 0);
    d->m_layout->setSpacing(2);
}

VCSBaseEditorParameterWidget::~VCSBaseEditorParameterWidget()
{
}

QStringList VCSBaseEditorParameterWidget::baseArguments() const
{
    return d->m_baseArguments;
}

void VCSBaseEditorParameterWidget::setBaseArguments(const QStringList &b)
{
    d->m_baseArguments = b;
}

QStringList VCSBaseEditorParameterWidget::arguments() const
{
    // Compile effective arguments
    QStringList args = d->m_baseArguments;
    foreach (const Internal::VCSBaseEditorParameterToggleButton *tb, d->m_toggles)
        tb->applyToArguments(&args);
    return args;
}

void VCSBaseEditorParameterWidget::addToggleButton(const QString &option,
                                                   const QString &label,
                                                   const QString &toolTip)
{
    Internal::VCSBaseEditorParameterToggleButton *tb = new Internal::VCSBaseEditorParameterToggleButton;
    tb->setOption(option);
    tb->setText(label);
    tb->setToolTip(toolTip);
    connect(tb, SIGNAL(changed()), this, SIGNAL(argumentsChanged()));
    d->m_layout->addWidget(tb);
    d->m_toggles.append(tb);
}

void VCSBaseEditorParameterWidget::addIgnoreWhiteSpaceButton(const QString &option)
{
    addToggleButton(option, msgIgnoreWhiteSpaceLabel(), msgIgnoreWhiteSpaceToolTip());
}

void VCSBaseEditorParameterWidget::addIgnoreBlankLinesButton(const QString &option)
{
    addToggleButton(option, msgIgnoreBlankLinesLabel(), msgIgnoreBlankLinesToolTip());
}

QString VCSBaseEditorParameterWidget::msgIgnoreWhiteSpaceLabel()
{
    return tr("Ignore whitespace");
}

QString VCSBaseEditorParameterWidget::msgIgnoreWhiteSpaceToolTip()
{
    return tr("Ignore whitespace only changes");
}

QString VCSBaseEditorParameterWidget::msgIgnoreBlankLinesLabel()
{
    return tr("Ignore blank lines ");
}

QString VCSBaseEditorParameterWidget::msgIgnoreBlankLinesToolTip()
{
    return tr("Ignore changes in blank lines");
}

} // namespace VCSBase

#include "vcsbaseeditorparameterwidget.moc"