90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
// vim: set tabstop=4 shiftwidth=4 expandtab:
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/*
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Gwenview: an image viewer
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Copyright 2009 Aurélien Gâteau <agateau@kde.org>
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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, Cambridge, MA 02110-1301, USA.
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*/
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// Self
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#include "itemeditor.h"
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// Qt
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#include <QApplication>
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#include <QMimeDatabase>
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#include <QShowEvent>
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// KF
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// Local
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#include "gwenview_lib_debug.h"
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namespace Gwenview
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{
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struct ItemEditorPrivate {
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QPoint mCenter;
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};
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ItemEditor::ItemEditor(QWidget *parent)
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: KLineEdit(parent)
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, d(new ItemEditorPrivate)
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{
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setPalette(QApplication::palette());
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connect(this, &ItemEditor::textChanged, this, &ItemEditor::resizeToContents);
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setTrapReturnKey(true);
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}
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ItemEditor::~ItemEditor()
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{
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delete d;
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}
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void ItemEditor::showEvent(QShowEvent *event)
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{
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// We can't do this in PreviewItemDelegate::updateEditorGeometry() because QAbstractItemView outsmarts us by calling selectAll() on the editor if it is a
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// QLineEdit
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QMimeDatabase db;
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const QString extension = db.suffixForFileName(text());
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if (!extension.isEmpty()) {
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// The filename contains an extension. Assure that only the filename
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// gets selected.
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const int selectionLength = text().length() - extension.length() - 1;
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setSelection(0, selectionLength);
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}
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KLineEdit::showEvent(event);
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}
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void ItemEditor::resizeToContents()
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{
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if (d->mCenter.isNull()) {
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d->mCenter = geometry().center();
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}
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int textWidth = fontMetrics().boundingRect(QStringLiteral(" ") + text() + QStringLiteral(" ")).width();
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QRect rect = geometry();
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rect.setWidth(textWidth);
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rect.moveCenter(d->mCenter);
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if (rect.right() > parentWidget()->width()) {
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rect.setRight(parentWidget()->width());
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}
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if (rect.left() < 0) {
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rect.setLeft(0);
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}
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setGeometry(rect);
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}
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} // namespace
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#include "moc_itemeditor.cpp"
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