QDirEdit.cpp

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/*  Copyright (C) 2009 Jens-Malte Gottfried

    This file is part of Tuchulcha.

    Tuchulcha is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Tuchulcha 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with Tuchulcha.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "QDirEdit.h"
#include <QCompleter>
#include <QDirModel>
#include <QFileDialog>
#include <QToolButton>
#include <QtEvents>

void QDirEdit::_init() {
    // initial values
    _files = false;
    _writeFile = false;

    // tool button to open browse dialog
    _browseButton = new QToolButton(this);
    _browseButton->setText(tr("..."));
    _browseButton->setCursor(QCursor(Qt::ArrowCursor));
    _browseButton->setFocusPolicy(Qt::NoFocus);
    QObject::connect(
            _browseButton, SIGNAL(clicked()),this, SLOT(fileDialog()));

    // completer
    QCompleter* complt = new QCompleter(this);
    complt->setModel(new QDirModel(
            QStringList(),
            QDir::AllDirs | QDir::NoDotAndDotDot,
            QDir::Name, complt));
    setCompleter(complt);
}

QDirEdit::QDirEdit(QWidget* p) :
        QLineEdit(p) {
    _init();
}

QDirEdit::QDirEdit(const QString& content, QWidget* p) :
        QLineEdit(content, p) {
    _init();
}

void QDirEdit::fileDialog() {
    emit dialogOpen(true);
    QString newVal;
    if (_files) {
        if (_writeFile)
            newVal = QFileDialog::getSaveFileName(
                    this,tr("select file to save to"), text());
        else {
            QStringList list = QFileDialog::getOpenFileNames(
                this, tr("select one or more file(s) to open"), text());
            if (list.size() > 0) {
                newVal = list.join(";");
            }
        }
    }
    else
        newVal = QFileDialog::getExistingDirectory(
                this, tr("select directory"),text());
    emit dialogOpen(false);
    if(!newVal.isEmpty())
    setText(newVal);
}

void QDirEdit::acceptFiles(bool files, bool write) {
    _files = files;
    _writeFile = write;
    QDirModel* dirModel = qobject_cast<QDirModel*>(completer()->model());
    Q_ASSERT(dirModel);
    if (_files)
        dirModel->setFilter(
                QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot);
    else
        dirModel->setFilter(
                QDir::AllDirs               | QDir::NoDotAndDotDot);
}

void QDirEdit::resizeEvent(QResizeEvent* e) {
    // make the tool button fit on the right side
    int h = e->size().height();
    // move the line edit to make room for the tool button
    setContentsMargins(0, 0, h, 0);
    // put the tool button in its place
    _browseButton->resize(h, h);
    _browseButton->move(width() - h, 0);
}