--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/drawMapTest/qaspectratiolayout.h Tue Dec 07 22:02:09 2010 +0300
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2009 Nokia Corporation.
+ */
+
+#ifndef QASPECTRATIOLAYOUT_H_
+#define QASPECTRATIOLAYOUT_H_
+
+#include <QLayout>
+#include <QPointer>
+#include <QRect>
+#include <QWidgetItem>
+#include <QLayoutItem>
+
+
+class QAspectRatioLayout : public QLayout
+{
+ Q_OBJECT
+
+public:
+ QAspectRatioLayout(QWidget* parent, int spacing =-1);
+ QAspectRatioLayout(int spacing = -1);
+ ~QAspectRatioLayout();
+
+ /* Convenience method */
+ virtual void add(QLayoutItem* item);
+
+/* http://doc.trolltech.com/qlayout.html#addItem */
+ virtual void addItem(QLayoutItem* item);
+ /* http://doc.trolltech.com/qlayout.html#addWidget */
+ virtual void addWidget(QWidget* widget);
+ /* http://doc.trolltech.com/qlayout.html#takeAt */
+ virtual QLayoutItem* takeAt(int index);
+ /* http://doc.trolltech.com/qlayout.html#itemAt */
+ virtual QLayoutItem* itemAt(int index) const;
+ /* http://doc.trolltech.com/qlayout.html#count */
+ virtual int count() const;
+
+ /*
+ * These are ours since we do have only one item.
+ */
+ virtual QLayoutItem* replaceItem(QLayoutItem* item);
+ virtual QLayoutItem* take();
+ virtual bool hasItem() const;
+
+/* http://doc.trolltech.com/qlayout.html#expandingDirections */
+ virtual Qt::Orientations expandingDirections() const;
+
+ /*
+ * This method contains most of the juice of this article.
+ * http://doc.trolltech.com/qlayoutitem.html#setGeometry
+ */
+ virtual void setGeometry(const QRect& rect);
+ /* http://doc.trolltech.com/qlayoutitem.html#geometry */
+ virtual QRect geometry();
+
+ /* http://doc.trolltech.com/qlayoutitem.html#sizeHint */
+ virtual QSize sizeHint() const;
+ /* http://doc.trolltech.com/qlayout.html#minimumSize */
+ virtual QSize minimumSize() const;
+ /* http://doc.trolltech.com/qlayoutitem.html#hasHeightForWidth */
+ virtual bool hasHeightForWidth() const;
+
+private:
+ /* Saves the last received rect. */
+ void setLastReceivedRect(const QRect& rect);
+ /* Used to initialize the object. */
+ void init(int spacing);
+ /* Calculates the maximum size for the item from the assigned size. */
+ QSize calculateProperSize(QSize from) const;
+ /* Calculates the center location from the assigned size and
+ * the items size. */
+ QPoint calculateCenterLocation(QSize from, QSize itemSize) const;
+ /* Check if two QRects are equal */
+ bool areRectsEqual(const QRect& a, const QRect& b) const;
+ /* Contains item reference */
+ QLayoutItem* item;
+ /*
+ * Used for caching so we won't do calculations every time
+ * setGeometry is called.
+ */
+ QRect* lastReceivedRect;
+ /* Contains geometry */
+ QRect* _geometry;
+
+};
+
+#endif /* QASPECTRATIOLAYOUT_H_ */