From 72874c0ebf2b5c8ba993ea7ecac6df407b57363f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samuel=20R=C3=B8dal?= <sroedal@trolltech.com>
Date: Fri, 28 Nov 2008 12:54:06 +0100
Subject: Better resizing of widgets.

---
 mazescene.cpp | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'mazescene.cpp')

diff --git a/mazescene.cpp b/mazescene.cpp
index fec21f2..11fbfcb 100644
--- a/mazescene.cpp
+++ b/mazescene.cpp
@@ -278,6 +278,8 @@ WallItem::WallItem(MazeScene *scene, const QPointF &a, const QPointF &b, int typ
     if (!childWidget)
         return;
 
+    childWidget->installEventFilter(scene);
+
     m_childItem = new QGraphicsProxyWidget(this);
     m_childItem->setWidget(childWidget);
     m_childItem->setCacheMode(QGraphicsItem::ItemCoordinateCache);
@@ -291,6 +293,36 @@ WallItem::WallItem(MazeScene *scene, const QPointF &a, const QPointF &b, int typ
     m_childItem->translate(-center.x(), -center.y());
 }
 
+bool MazeScene::eventFilter(QObject *target, QEvent *event)
+{
+    QWidget *widget = qobject_cast<QWidget *>(target);
+    if (!widget || event->type() != QEvent::Resize)
+        return false;
+
+    foreach (WallItem *item, m_walls) {
+        QGraphicsProxyWidget *proxy = item->childItem();
+        if (!proxy)
+            continue;
+        if (proxy->widget() == widget) {
+            QRectF rect = proxy->boundingRect();
+
+            if (QRectF(-0.5, -0.5, 1, 1).contains(proxy->mapToParent(rect).boundingRect()))
+                continue;
+
+            QPointF center = rect.center();
+
+            qreal scale = qMin(0.8 / rect.width(), 0.8 / rect.height());
+            proxy->resetMatrix();
+            proxy->translate(0, -0.05);
+            proxy->scale(scale, scale);
+            proxy->translate(-center.x(), -center.y());
+            break;
+        }
+    }
+
+    return false;
+}
+
 void ProjectedItem::setDepths(qreal za, qreal zb)
 {
     if (!m_shadowItem)
-- 
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