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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "RowTimelineCommentItem.h"
#include "TimelineConstants.h"
#include "TimelineItem.h"
#include "RowTree.h"
#include "StudioPreferences.h"
#include <QtWidgets/qstyleoption.h>
#include <QtGui/qevent.h>
#include <QtGui/qtextcursor.h>
#include <QtGui/qpainter.h>
#include <QtGui/qtextoption.h>
#include <QtGui/qtextdocument.h>
static const int MAX_COMMENT_SIZE = 2000; // Should be enough
RowTimelineCommentItem::RowTimelineCommentItem(QGraphicsItem *parent)
: QGraphicsTextItem(parent)
, m_acceptOnFocusOut(true)
{
setTextInteractionFlags(Qt::TextEditorInteraction);
setTextWidth(MAX_COMMENT_SIZE);
setDefaultTextColor(CStudioPreferences::textColor());
setVisible(false);
}
QString RowTimelineCommentItem::label() const
{
return m_label;
}
void RowTimelineCommentItem::setLabel(const QString &label)
{
setPlainText(label);
if (m_label != label) {
m_label = label;
emit labelChanged(m_label);
}
}
RowTree *RowTimelineCommentItem::parentRow() const
{
return m_rowTree;
}
void RowTimelineCommentItem::setParentRow(RowTree *row)
{
m_rowTree = row;
}
int RowTimelineCommentItem::type() const
{
// Enable the use of qgraphicsitem_cast with this item.
return TimelineItem::TypeRowTimelineCommentItem;
}
void RowTimelineCommentItem::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
// prevents flickering when the row is just inserted to the layout
if (m_rowTree && !m_rowTree->y())
return;
// Paint background
QRectF r = boundingRect();
r.adjust(-TimelineConstants::RULER_EDGE_OFFSET,
TimelineConstants::ROW_TEXT_OFFSET_Y, 0,
TimelineConstants::ROW_TEXT_OFFSET_Y);
painter->fillRect(r, CStudioPreferences::timelineRowCommentBgColor());
// Remove the HasFocus style state, to prevent the dotted line from being drawn.
QStyleOptionGraphicsItem *style = const_cast<QStyleOptionGraphicsItem *>(option);
style->state &= ~QStyle::State_HasFocus;
QGraphicsTextItem::paint(painter, option, widget);
}
void RowTimelineCommentItem::focusOutEvent(QFocusEvent *event)
{
if (m_acceptOnFocusOut)
validateLabel();
else
setPlainText(m_label);
// Remove possible selection
QTextCursor cursor = textCursor();
cursor.clearSelection();
setTextCursor(cursor);
QGraphicsTextItem::focusOutEvent(event);
// Next time default to accepting
m_acceptOnFocusOut = true;
}
void RowTimelineCommentItem::keyPressEvent(QKeyEvent *event)
{
int key = event->key();
if (key == Qt::Key_Return || key == Qt::Key_Enter) {
m_acceptOnFocusOut = true;
clearFocus();
event->accept();
return;
} else if (key == Qt::Key_Escape) {
m_acceptOnFocusOut = false;
clearFocus();
event->accept();
return;
}
QGraphicsTextItem::keyPressEvent(event);
}
QRectF RowTimelineCommentItem::boundingRect() const
{
return QRectF(0, 0, parentItem()->boundingRect().width(),
TimelineConstants::ROW_H);
}
void RowTimelineCommentItem::validateLabel()
{
QString text = toPlainText().trimmed();
text = text.left(MAX_COMMENT_SIZE);
setLabel(text);
}
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