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authorTimothy Pearson <[email protected]>2011-07-10 15:24:15 -0500
committerTimothy Pearson <[email protected]>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /src/kernel/qlayoutengine_p.h
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
Add Qt3 development HEAD version
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+/****************************************************************************
+**
+** Internal header file.
+**
+** Created : 981027
+**
+** Copyright (C) 1998-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at [email protected].
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file. Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QLAYOUTENGINE_P_H
+#define QLAYOUTENGINE_P_H
+
+#ifndef QLAYOUT_H
+ #error "Need to include qlayout.h before including qlayoutengine_p.h"
+#endif
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of qlayout.cpp, qlayoutengine.cpp, qmainwindow.cpp and qsplitter.cpp.
+// This header file may change from version to version without notice,
+// or even be removed.
+//
+// We mean it.
+//
+//
+
+
+#ifndef QT_H
+#include "qabstractlayout.h"
+#endif // QT_H
+
+#ifndef QT_NO_LAYOUT
+
+struct QLayoutStruct
+{
+ inline void init( int stretchFactor = 0, int spacing = 0 ) {
+ stretch = stretchFactor;
+ minimumSize = sizeHint = spacing;
+ maximumSize = QLAYOUTSIZE_MAX;
+ expansive = FALSE;
+ empty = TRUE;
+ }
+
+ QCOORD smartSizeHint() {
+ return ( stretch > 0 ) ? minimumSize : sizeHint;
+ }
+
+ // parameters
+ int stretch;
+ QCOORD sizeHint;
+ QCOORD maximumSize;
+ QCOORD minimumSize;
+ bool expansive;
+ bool empty;
+
+ // temporary storage
+ bool done;
+
+ // result
+ int pos;
+ int size;
+};
+
+
+Q_EXPORT void qGeomCalc( QMemArray<QLayoutStruct> &chain, int start, int count,
+ int pos, int space, int spacer );
+Q_EXPORT QSize qSmartMinSize( const QWidgetItem *i );
+Q_EXPORT QSize qSmartMinSize( QWidget *w );
+Q_EXPORT QSize qSmartMaxSize( const QWidgetItem *i, int align = 0 );
+Q_EXPORT QSize qSmartMaxSize( QWidget *w, int align = 0 );
+
+
+/*
+ Modify total maximum (max) and total expansion (exp)
+ when adding boxmax/boxexp.
+
+ Expansive boxes win over non-expansive boxes.
+*/
+static inline void qMaxExpCalc( QCOORD & max, bool &exp,
+ QCOORD boxmax, bool boxexp )
+{
+ if ( exp ) {
+ if ( boxexp )
+ max = QMAX( max, boxmax );
+ } else {
+ if ( boxexp )
+ max = boxmax;
+ else
+ max = QMIN( max, boxmax );
+ }
+ exp = exp || boxexp;
+}
+
+#endif //QT_NO_LAYOUT
+#endif