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mirror of https://bitbucket.org/librepilot/librepilot.git synced 2025-01-07 18:46:06 +01:00
LibrePilot/ground/openpilotgcs/src/libs/utils/pathchooser.cpp
stac 7195862d77 build: Move openpilotgcs into its own subdirectory
This will allow us to build a parent project for
qt-creator that sits above both openpilotgcs and
uavobjgenerator so that we can build both projects
at the same time.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2528 ebee16cc-31ac-478f-84a7-5cbb03baadba
2011-01-22 17:40:26 +00:00

329 lines
8.6 KiB
C++

/**
******************************************************************************
*
* @file pathchooser.cpp
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
* @brief
* @see The GNU Public License (GPL) Version 3
* @defgroup
* @{
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "pathchooser.h"
#include "basevalidatinglineedit.h"
#include "qtcassert.h"
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtCore/QSettings>
#include <QtGui/QDesktopServices>
#include <QtGui/QFileDialog>
#include <QtGui/QHBoxLayout>
#include <QtGui/QLineEdit>
#include <QtGui/QToolButton>
#include <QtGui/QPushButton>
/*static*/ const char * const Utils::PathChooser::browseButtonLabel =
#ifdef Q_WS_MAC
QT_TRANSLATE_NOOP("Utils::PathChooser", "Choose...");
#else
QT_TRANSLATE_NOOP("Utils::PathChooser", "Browse...");
#endif
namespace Utils {
// ------------------ PathValidatingLineEdit
class PathValidatingLineEdit : public BaseValidatingLineEdit
{
public:
explicit PathValidatingLineEdit(PathChooser *chooser, QWidget *parent = 0);
protected:
virtual bool validate(const QString &value, QString *errorMessage) const;
private:
PathChooser *m_chooser;
};
PathValidatingLineEdit::PathValidatingLineEdit(PathChooser *chooser, QWidget *parent) :
BaseValidatingLineEdit(parent),
m_chooser(chooser)
{
QTC_ASSERT(chooser, return);
}
bool PathValidatingLineEdit::validate(const QString &value, QString *errorMessage) const
{
return m_chooser->validatePath(value, errorMessage);
}
// ------------------ PathChooserPrivate
struct PathChooserPrivate
{
PathChooserPrivate(PathChooser *chooser);
QHBoxLayout *m_hLayout;
PathValidatingLineEdit *m_lineEdit;
PathChooser::Kind m_acceptingKind;
QString m_dialogTitleOverride;
QString m_dialogFilter;
QString m_initialBrowsePathOverride;
};
PathChooserPrivate::PathChooserPrivate(PathChooser *chooser) :
m_hLayout(new QHBoxLayout),
m_lineEdit(new PathValidatingLineEdit(chooser)),
m_acceptingKind(PathChooser::Directory)
{
}
PathChooser::PathChooser(QWidget *parent) :
QWidget(parent),
m_d(new PathChooserPrivate(this))
{
m_d->m_hLayout->setContentsMargins(0, 0, 0, 0);
connect(m_d->m_lineEdit, SIGNAL(validReturnPressed()), this, SIGNAL(returnPressed()));
connect(m_d->m_lineEdit, SIGNAL(textChanged(QString)), this, SIGNAL(changed(QString)));
connect(m_d->m_lineEdit, SIGNAL(validChanged()), this, SIGNAL(validChanged()));
connect(m_d->m_lineEdit, SIGNAL(validChanged(bool)), this, SIGNAL(validChanged(bool)));
connect(m_d->m_lineEdit, SIGNAL(editingFinished()), this, SIGNAL(editingFinished()));
m_d->m_lineEdit->setMinimumWidth(50);
m_d->m_hLayout->addWidget(m_d->m_lineEdit);
m_d->m_hLayout->setSizeConstraint(QLayout::SetMinimumSize);
addButton(tr(browseButtonLabel), this, SLOT(slotBrowse()));
setLayout(m_d->m_hLayout);
setFocusProxy(m_d->m_lineEdit);
}
PathChooser::~PathChooser()
{
delete m_d;
}
void PathChooser::addButton(const QString &text, QObject *receiver, const char *slotFunc)
{
#ifdef Q_WS_MAC
QPushButton *button = new QPushButton;
#else
QToolButton *button = new QToolButton;
#endif
button->setText(text);
connect(button, SIGNAL(clicked()), receiver, slotFunc);
m_d->m_hLayout->addWidget(button);
}
QAbstractButton *PathChooser::buttonAtIndex(int index) const
{
return findChildren<QAbstractButton*>().at(index);
}
QString PathChooser::path() const
{
return m_d->m_lineEdit->text();
}
void PathChooser::setPath(const QString &path)
{
m_d->m_lineEdit->setText(QDir::toNativeSeparators(path));
}
void PathChooser::slotBrowse()
{
emit beforeBrowsing();
QString predefined = path();
if ((predefined.isEmpty() || !QFileInfo(predefined).isDir())
&& !m_d->m_initialBrowsePathOverride.isNull()) {
predefined = m_d->m_initialBrowsePathOverride;
if (!QFileInfo(predefined).isDir())
predefined.clear();
}
if (predefined.startsWith(":"))
predefined.clear();
// Prompt for a file/dir
QString dialogTitle;
QString newPath;
switch (m_d->m_acceptingKind) {
case PathChooser::Directory:
newPath = QFileDialog::getExistingDirectory(this,
makeDialogTitle(tr("Choose a directory")), predefined);
break;
case PathChooser::File: // fall through
case PathChooser::Command:
newPath = QFileDialog::getOpenFileName(this,
makeDialogTitle(tr("Choose a file")), predefined,
m_d->m_dialogFilter);
break;
default:
;
}
// Delete trailing slashes unless it is "/"|"\\", only
if (!newPath.isEmpty()) {
newPath = QDir::toNativeSeparators(newPath);
if (newPath.size() > 1 && newPath.endsWith(QDir::separator()))
newPath.truncate(newPath.size() - 1);
setPath(newPath);
}
emit browsingFinished();
}
bool PathChooser::isValid() const
{
return m_d->m_lineEdit->isValid();
}
QString PathChooser::errorMessage() const
{
return m_d->m_lineEdit->errorMessage();
}
bool PathChooser::validatePath(const QString &path, QString *errorMessage)
{
if (path.isEmpty()) {
if (errorMessage)
*errorMessage = tr("The path must not be empty.");
return false;
}
const QFileInfo fi(path);
const bool isDir = fi.isDir();
// Check if existing
switch (m_d->m_acceptingKind) {
case PathChooser::Directory: // fall through
case PathChooser::File:
if (!fi.exists()) {
if (errorMessage)
*errorMessage = tr("The path '%1' does not exist.").arg(path);
return false;
}
break;
case PathChooser::Command: // fall through
default:
;
}
// Check expected kind
switch (m_d->m_acceptingKind) {
case PathChooser::Directory:
if (!isDir) {
if (errorMessage)
*errorMessage = tr("The path '%1' is not a directory.").arg(path);
return false;
}
break;
case PathChooser::File:
if (isDir) {
if (errorMessage)
*errorMessage = tr("The path '%1' is not a file.").arg(path);
return false;
}
break;
case PathChooser::Command:
// TODO do proper command validation
// i.e. search $PATH for a matching file
break;
default:
;
}
return true;
}
QString PathChooser::label()
{
return tr("Path:");
}
QString PathChooser::homePath()
{
#ifdef Q_OS_WIN
// Return 'users/<name>/Documents' on Windows, since Windows explorer
// does not let people actually display the contents of their home
// directory. Alternatively, create a QtCreator-specific directory?
return QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
#else
return QDir::homePath();
#endif
}
void PathChooser::setExpectedKind(Kind expected)
{
m_d->m_acceptingKind = expected;
}
PathChooser::Kind PathChooser::expectedKind() const
{
return m_d->m_acceptingKind;
}
void PathChooser::setPromptDialogTitle(const QString &title)
{
m_d->m_dialogTitleOverride = title;
}
QString PathChooser::promptDialogTitle() const
{
return m_d->m_dialogTitleOverride;
}
void PathChooser::setPromptDialogFilter(const QString &filter)
{
m_d->m_dialogFilter = filter;
}
QString PathChooser::promptDialogFilter() const
{
return m_d->m_dialogFilter;
}
void PathChooser::setInitialBrowsePathBackup(const QString &path)
{
m_d->m_initialBrowsePathOverride = path;
}
QString PathChooser::makeDialogTitle(const QString &title)
{
if (m_d->m_dialogTitleOverride.isNull())
return title;
else
return m_d->m_dialogTitleOverride;
}
} // namespace Utils