Changeset 561 for trunk/examples/graphicsview/basicgraphicslayouts/layoutitem.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• examples/graphicsview/basicgraphicslayouts/layoutitem.cpp (modified) (7 diffs)

trunk/examples/graphicsview/basicgraphicslayouts/layoutitem.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the examples of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -44 +44 @@
 //! [0]
 LayoutItem::LayoutItem(QGraphicsItem *parent/* = 0*/)
-    : QGraphicsWidget(parent)
+    : QGraphicsLayoutItem(), QGraphicsItem(parent)
 {
-    pix = new QPixmap(QLatin1String(":/images/block.png"));
-    // Do not allow a size smaller than the pixmap with two frames around it.
-    setMinimumSize(pix->size() + QSize(12, 12));
+    m_pix = new QPixmap(QLatin1String(":/images/block.png"));
+    setGraphicsItem(this);
 }
 //! [0]
@@ -54 +53 @@
 LayoutItem::~LayoutItem()
 {
-    delete pix;
+    delete m_pix;
 }
- 
+
 //! [1]
 void LayoutItem::paint(QPainter *painter,
@@ -65 +64 @@
 
     QRectF frame(QPointF(0,0), geometry().size());
-    qreal w = pix->width();
-    qreal h = pix->height();
+    qreal w = m_pix->width();
+    qreal h = m_pix->height();
     QGradientStops stops;
 //! [1]
@@ -95 +94 @@
     painter->setBrush(QBrush(gradient));
     painter->drawRoundedRect(innerFrame, 10.0, 10.0);
-    painter->drawPixmap(pixpos, *pix);
+    painter->drawPixmap(pixpos, *m_pix);
 }
 //! [2]
+
+//! [3]
+QRectF LayoutItem::boundingRect() const
+{
+    return QRectF(QPointF(0,0), geometry().size());
+}
+//! [3]
+
+//! [4]
+void LayoutItem::setGeometry(const QRectF &geom)
+{
+    prepareGeometryChange();
+    QGraphicsLayoutItem::setGeometry(geom);
+    setPos(geom.topLeft());
+}
+//! [4]
+
+//! [5]
+QSizeF LayoutItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+{
+    switch (which) {
+    case Qt::MinimumSize:
+    case Qt::PreferredSize:
+        // Do not allow a size smaller than the pixmap with two frames around it.
+        return m_pix->size() + QSize(12, 12);
+    case Qt::MaximumSize:
+        return QSizeF(1000,1000);
+    default:
+        break;
+    }
+    return constraint;
+}
+//! [5]