##// END OF EJS Templates
Fix zooming in crash...
Fix zooming in crash The bounding rect has to fit inside int limits when zooming in, meaning that the height and width both have to be within the int limits (INT_MAX). QWidget::update() uses a region (based on bounding rect) that has to be compatible with QRect. The geometry change is only done if the bounding rect fulfills this requirement. Task-number: QTRD-1907 Change-Id: I4e874de355390c5fc983ac1e0976bf0d21e2d10c Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

File last commit:

r2592:621c955c10d2
r2603:1e4c29e111d4
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charttitle.cpp
88 lines | 2.2 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Enterprise Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "charttitle_p.h"
#include "chartpresenter_p.h"
#include <QFont>
#include <QFontMetrics>
#include <QDebug>
#include <QTextDocument>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartTitle::ChartTitle(QGraphicsItem *parent)
: QGraphicsTextItem(parent)
{
document()->setDocumentMargin(ChartPresenter::textMargin());
}
ChartTitle::~ChartTitle()
{
}
void ChartTitle::setText(const QString &text)
{
m_text = text;
}
QString ChartTitle::text() const
{
return m_text;
}
void ChartTitle::setGeometry(const QRectF &rect)
{
QRectF dummyRect;
QGraphicsTextItem::setHtml(ChartPresenter::truncatedText(font(), m_text, qreal(0.0), rect.width(), Qt::Horizontal, dummyRect));
setPos(rect.topLeft());
}
QSizeF ChartTitle::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
{
Q_UNUSED(constraint);
QSizeF sh;
switch (which) {
case Qt::MinimumSize: {
QRectF titleRect = ChartPresenter::textBoundingRect(font(), "...");
sh = QSizeF(titleRect.width(), titleRect.height());
break;
}
case Qt::PreferredSize:
case Qt::MaximumSize: {
QRectF titleRect = ChartPresenter::textBoundingRect(font(), m_text);
sh = QSizeF(titleRect.width(), titleRect.height());
break;
}
case Qt::MinimumDescent: {
QFontMetrics fn(font());
sh = QSizeF(0, fn.descent());
break;
}
default:
break;
}
return sh;
}
QTCOMMERCIALCHART_END_NAMESPACE