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// vim: set tabstop=4 shiftwidth=4 noexpandtab
/*
Copyright (c) 2003 Jos van den Oever
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 2
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.
*/
// Qt
#include <qlabel.h>
#include <qtextedit.h>
#include <qfileinfo.h>
// KDE
#include <kdeversion.h>
#include <klocale.h>
// Local
#include "gvcore/document.h"
#include "metaedit.moc"
namespace Gwenview {
// FIXME: Why doesn't MetaEdit inherits from QTextEdit rather than QVBox?
MetaEdit::MetaEdit(QWidget *parent, Document *gvp, const char *name)
: QVBox(parent, name)
, mEmpty(true)
, mDocument(gvp)
{
mCommentEdit=new QTextEdit(this);
mCommentEdit->installEventFilter(this);
connect(mCommentEdit, SIGNAL(modificationChanged(bool)),
this, SLOT(setModified(bool)));
connect(mDocument,SIGNAL(loaded(const KURL&)),
this,SLOT(updateContent()) );
connect(mCommentEdit, SIGNAL(textChanged()),
this, SLOT(updateDoc()) );
updateContent();
mCommentEdit->setMinimumHeight(int (mCommentEdit->fontMetrics().height() * 1.5) );
}
MetaEdit::~MetaEdit() {
}
bool MetaEdit::eventFilter(QObject*, QEvent *event) {
if (mEmpty
&& (mDocument->commentState()==Document::WRITABLE)
&& (event->type()==QEvent::FocusIn || event->type()==QEvent::FocusOut)
) {
setEmptyText();
}
return false;
}
void MetaEdit::setModified(bool m) {
if (m && mEmpty) {
mEmpty = false;
}
}
void MetaEdit::updateContent() {
if (mDocument->isNull()) {
setMessage(i18n("No image selected."));
return;
}
if (mDocument->commentState() == Document::NONE) {
setMessage(i18n("This image cannot be commented."));
return;
}
QString comment=mDocument->comment();
mEmpty = comment.isEmpty();
if (mEmpty) {
setEmptyText();
return;
}
setComment(comment);
}
void MetaEdit::updateDoc() {
if ((mDocument->commentState()==Document::WRITABLE) && mCommentEdit->isModified()) {
mDocument->setComment(mCommentEdit->text());
mCommentEdit->setModified(false);
}
}
void MetaEdit::setEmptyText() {
Q_ASSERT(mDocument->commentState()!=Document::NONE);
if (mDocument->commentState()==Document::WRITABLE) {
if (mCommentEdit->hasFocus()) {
setComment("");
} else {
setMessage(i18n("Type here to add a comment to this image."));
}
} else {
setMessage(i18n("No comment available."));
}
}
/**
* Use mCommentEdit to show the comment and let the user edit it
*/
void MetaEdit::setComment(const QString& comment) {
Q_ASSERT(mDocument->commentState()!=Document::NONE);
mCommentEdit->setTextFormat(QTextEdit::PlainText);
mCommentEdit->setReadOnly(mDocument->commentState()==Document::READ_ONLY);
mCommentEdit->setText(comment);
}
/**
* Use mCommentEdit to display a read-only message
*/
void MetaEdit::setMessage(const QString& msg) {
mCommentEdit->setTextFormat(QTextEdit::RichText);
mCommentEdit->setReadOnly(true);
mCommentEdit->setText(QString("<i>%1</i>").arg(msg));
}
} // namespace
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