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139 lines
3.4 KiB
139 lines
3.4 KiB
// vim: set tabstop=4 shiftwidth=4 noexpandtab
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/*
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Copyright (c) 2003 Jos van den Oever
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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// Qt
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#include <qlabel.h>
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#include <qtextedit.h>
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#include <qfileinfo.h>
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// KDE
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#include <kdeversion.h>
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#include <klocale.h>
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// Local
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#include "gvcore/document.h"
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#include "metaedit.moc"
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namespace Gwenview {
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// FIXME: Why doesn't MetaEdit inherits from QTextEdit rather than QVBox?
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MetaEdit::MetaEdit(QWidget *parent, Document *gvp, const char *name)
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: QVBox(parent, name)
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, mEmpty(true)
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, mDocument(gvp)
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{
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mCommentEdit=new QTextEdit(this);
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mCommentEdit->installEventFilter(this);
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connect(mCommentEdit, SIGNAL(modificationChanged(bool)),
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this, SLOT(setModified(bool)));
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connect(mDocument,SIGNAL(loaded(const KURL&)),
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this,SLOT(updateContent()) );
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connect(mCommentEdit, SIGNAL(textChanged()),
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this, SLOT(updateDoc()) );
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updateContent();
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mCommentEdit->setMinimumHeight(int (mCommentEdit->fontMetrics().height() * 1.5) );
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}
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MetaEdit::~MetaEdit() {
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}
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bool MetaEdit::eventFilter(QObject*, QEvent *event) {
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if (mEmpty
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&& (mDocument->commentState()==Document::WRITABLE)
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&& (event->type()==QEvent::FocusIn || event->type()==QEvent::FocusOut)
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) {
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setEmptyText();
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}
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return false;
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}
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void MetaEdit::setModified(bool m) {
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if (m && mEmpty) {
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mEmpty = false;
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}
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}
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void MetaEdit::updateContent() {
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if (mDocument->isNull()) {
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setMessage(i18n("No image selected."));
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return;
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}
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if (mDocument->commentState() == Document::NONE) {
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setMessage(i18n("This image cannot be commented."));
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return;
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}
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QString comment=mDocument->comment();
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mEmpty = comment.isEmpty();
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if (mEmpty) {
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setEmptyText();
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return;
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}
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setComment(comment);
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}
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void MetaEdit::updateDoc() {
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if ((mDocument->commentState()==Document::WRITABLE) && mCommentEdit->isModified()) {
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mDocument->setComment(mCommentEdit->text());
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mCommentEdit->setModified(false);
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}
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}
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void MetaEdit::setEmptyText() {
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Q_ASSERT(mDocument->commentState()!=Document::NONE);
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if (mDocument->commentState()==Document::WRITABLE) {
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if (mCommentEdit->hasFocus()) {
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setComment("");
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} else {
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setMessage(i18n("Type here to add a comment to this image."));
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}
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} else {
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setMessage(i18n("No comment available."));
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}
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}
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/**
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* Use mCommentEdit to show the comment and let the user edit it
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*/
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void MetaEdit::setComment(const QString& comment) {
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Q_ASSERT(mDocument->commentState()!=Document::NONE);
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mCommentEdit->setTextFormat(QTextEdit::PlainText);
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mCommentEdit->setReadOnly(mDocument->commentState()==Document::READ_ONLY);
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mCommentEdit->setText(comment);
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}
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/**
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* Use mCommentEdit to display a read-only message
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*/
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void MetaEdit::setMessage(const QString& msg) {
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mCommentEdit->setTextFormat(QTextEdit::RichText);
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mCommentEdit->setReadOnly(true);
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mCommentEdit->setText(QString("<i>%1</i>").arg(msg));
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}
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} // namespace
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