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/*
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// TQt
#include <tqlabel.h>
#include <tqtextedit.h>
#include <tqfileinfo.h>
// KDE
#include <tdeversion.h>
#include <tdelocale.h>
// Local
#include "gvcore/document.h"
#include "metaedit.moc"
namespace Gwenview {
// FIXME: Why doesn't MetaEdit inherits from TQTextEdit rather than TQVBox?
MetaEdit::MetaEdit(TQWidget *parent, Document *gvp, const char *name)
: TQVBox(parent, name)
, mEmpty(true)
, mDocument(gvp)
{
mCommentEdit=new TQTextEdit(this);
mCommentEdit->installEventFilter(this);
connect(mCommentEdit, TQ_SIGNAL(modificationChanged(bool)),
this, TQ_SLOT(setModified(bool)));
connect(mDocument,TQ_SIGNAL(loaded(const KURL&)),
this,TQ_SLOT(updateContent()) );
connect(mCommentEdit, TQ_SIGNAL(textChanged()),
this, TQ_SLOT(updateDoc()) );
updateContent();
mCommentEdit->setMinimumHeight(int (mCommentEdit->fontMetrics().height() * 1.5) );
}
MetaEdit::~MetaEdit() {
}
bool MetaEdit::eventFilter(TQObject*, TQEvent *event) {
if (mEmpty
&& (mDocument->commentState()==Document::WRITABLE)
&& (event->type()==TQEvent::FocusIn || event->type()==TQEvent::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;
}
TQString 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 TQString& comment) {
Q_ASSERT(mDocument->commentState()!=Document::NONE);
mCommentEdit->setTextFormat(TQTextEdit::PlainText);
mCommentEdit->setReadOnly(mDocument->commentState()==Document::READ_ONLY);
mCommentEdit->setText(comment);
}
/**
* Use mCommentEdit to display a read-only message
*/
void MetaEdit::setMessage(const TQString& msg) {
mCommentEdit->setTextFormat(TQTextEdit::RichText);
mCommentEdit->setReadOnly(true);
mCommentEdit->setText(TQString("<i>%1</i>").arg(msg));
}
} // namespace
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