libyui

/data/gitorious.org/libyui/libyui-master/src/YLayoutBox.h

00001 /**************************************************************************
00002 Copyright (C) 2000 - 2010 Novell, Inc.
00003 All Rights Reserved.
00004 
00005 This program is free software; you can redistribute it and/or modify
00006 it under the terms of the GNU General Public License as published by
00007 the Free Software Foundation; either version 2 of the License, or
00008 (at your option) any later version.
00009 
00010 This program is distributed in the hope that it will be useful,
00011 but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 GNU General Public License for more details.
00014 
00015 You should have received a copy of the GNU General Public License along
00016 with this program; if not, write to the Free Software Foundation, Inc.,
00017 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00018 
00019 **************************************************************************/
00020 
00021 
00022 /*---------------------------------------------------------------------\
00023 |                                                                      |
00024 |                      __   __    ____ _____ ____                      |
00025 |                      \ \ / /_ _/ ___|_   _|___ \                     |
00026 |                       \ V / _` \___ \ | |   __) |                    |
00027 |                        | | (_| |___) || |  / __/                     |
00028 |                        |_|\__,_|____/ |_| |_____|                    |
00029 |                                                                      |
00030 |                               core system                            |
00031 |                                                        (C) SuSE GmbH |
00032 \----------------------------------------------------------------------/
00033 
00034   File:         YLayoutBox.h
00035 
00036   Author:       Stefan Hundhammer <sh@suse.de>
00037 
00038 /-*/
00039 
00040 #ifndef YLayoutBox_h
00041 #define YLayoutBox_h
00042 
00043 #include <vector>
00044 #include "YWidget.h"
00045 
00046 using std::vector;
00047 
00048 class YLayoutBoxPrivate;
00049 
00050 
00051 class YLayoutBox : public YWidget
00052 {
00053 public:
00054     typedef vector<int> sizeVector;
00055     typedef vector<int> posVector;
00056 
00057 protected:
00063     YLayoutBox( YWidget * parent, YUIDimension dim );
00064 
00065 public:
00069     virtual ~YLayoutBox();
00070 
00075     virtual const char * widgetClass() const;
00076 
00081     YUIDimension primary() const;
00082 
00086     YUIDimension secondary() const;
00087 
00091     bool debugLayout() const;
00092 
00096     void setDebugLayout( bool deb = true );
00097 
00103     virtual int preferredSize( YUIDimension dim );
00104 
00110     virtual int preferredWidth();
00111 
00117     virtual int preferredHeight();
00118 
00128     virtual void setSize( int newWidth, int newHeight );
00129 
00138     virtual bool stretchable( YUIDimension dimension ) const;
00139 
00145     virtual void moveChild( YWidget * child, int newX, int newY ) = 0;
00146 
00151     static bool isLayoutStretch( YWidget * child, YUIDimension dimension );
00152 
00153 
00154 protected:
00155 
00159     int childrenTotalWeight( YUIDimension dimension );
00160 
00165     int childrenMaxPreferredSize( YUIDimension dimension );
00166 
00171     int totalNonWeightedChildrenPreferredSize( YUIDimension dimension );
00172 
00176     int countNonWeightedChildren( YUIDimension dimension );
00177 
00182     int countStretchableChildren( YUIDimension dimension );
00183 
00189     int countLayoutStretchChildren( YUIDimension dimension );
00190 
00198     YWidget * findDominatingChild();
00199 
00204     void calcPrimaryGeometry    ( int           newSize,
00205                                   sizeVector &  childSize,
00206                                   posVector  &  childPos );
00207 
00212     void calcSecondaryGeometry  ( int           newSize,
00213                                   sizeVector &  childSize,
00214                                   posVector  &  childPos );
00215 
00223     void doResize( sizeVector & width,
00224                    sizeVector & height,
00225                    posVector  & x_pos,
00226                    posVector  & y_pos  );
00227 
00228 
00229 private:
00230 
00231     ImplPtr<YLayoutBoxPrivate>  priv;
00232 };
00233 
00234 
00235 typedef YLayoutBox YVBox;
00236 typedef YLayoutBox YHBox;
00237 
00238 
00239 #endif // YLayoutBox_h
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