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-
- /*******************************************************************************/
- /* Copyright (C) 2009 Jonathan Moore Liles */
- /* */
- /* This program is free software; you can redistribute it and/or modify it */
- /* under the terms of the GNU General Public License as published by the */
- /* Free Software Foundation; either version 2 of the License, or (at your */
- /* option) any later version. */
- /* */
- /* This program is distributed in the hope that it will be useful, but WITHOUT */
- /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
- /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
- /* more details. */
- /* */
- /* You should have received a copy of the GNU General Public License along */
- /* with This program; see the file COPYING. If not,write to the Free Software */
- /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
- /*******************************************************************************/
-
- #pragma once
-
- #include <FL/Fl_Group.H>
- #include <FL/Fl_Pack.H>
-
- class Fl_Flowpack : public Fl_Group
- {
- int _hspacing;
- int _vspacing;
- bool _flow;
- bool _flowdown;
- int _initial_height;
- int _initial_width;
-
- public:
-
- Fl_Flowpack ( int X, int Y, int W, int H, const char *L = 0 )
- : Fl_Group( X, Y, W, H, L )
- {
- resizable( 0 );
- _hspacing = _vspacing = 0;
- _initial_width = W;
- _initial_height = H;
- _flow = true;
- _flowdown = false;
- }
-
- virtual ~Fl_Flowpack ( )
- {
- }
-
-
- void vspacing ( int v ) { _vspacing = v; }
- int vspacing ( void ) const { return _vspacing; };
-
- void hspacing ( int h ) { _hspacing = h; }
- int hspacing ( void ) const { return _hspacing; };
-
- bool flow ( void ) const { return _flow; }
- void flow ( bool v ) { _flow = v; }
-
- bool flowdown ( void ) const { return _flowdown; }
- void flowdown ( bool v ) { _flowdown = v; }
-
- void
- add ( Fl_Widget *w )
- {
- Fl_Group::add( w );
- dolayout();
- }
-
- void
- remove ( Fl_Widget *w )
- {
- Fl_Group::remove( w );
- dolayout();
- }
-
- void
- resize ( int X, int Y, int W, int H )
- {
- _initial_width = W;
- _initial_height = H;
-
- layout();
-
- Fl_Group::resize( X, Y, w(), h() );
- }
-
- void
- draw ( void )
- {
- layout();
- Fl_Group::draw();
- }
-
- void dolayout ( void )
- {
- layout();
- }
-
- void
- layout ( void )
- {
- resizable( 0 );
-
- int W;
- int H;
- int X = 0;
- int Y = 0;
- int LW = 0;
- int LH = 0;
- int LX = 0;
- int LY = 0;
- int RH = 0;
- // int RY = 0;
- int CW = 0;
-
- if ( _flow )
- {
- H = 0;
- W = 0;
- }
- else
- {
- H = _initial_height;
- W = _initial_width;
- }
-
- for ( int i = 0; i < children(); ++i )
- {
- Fl_Widget *o = child( i );
-
- if ( ! o->visible() )
- continue;
-
- if ( _flow )
- {
- if ( _flowdown )
- {
- if ( Y + o->h() <= _initial_height )
- {
- /* if it'll fit in this column, put it below the previous widget */
- X = LX;
- }
- else
- {
- Y = H;
- CW = 0;
- }
-
- CW = o->w() > CW ? o->w() : CW;
- RH = Y + o->h() > RH ? Y + o->h() : RH;
- }
- else
- {
- if ( X + o->w() >= _initial_width )
- {
- /* maybe wrap to the next row */
- H += RH + _vspacing;
- // RY = Y;
- RH = 0;
- if ( X > W )
- W = X;
-
- X = 0;
- }
- else
- {
- /* otherwise, put it in the next column */
- Y = H;
-
- }
-
- RH = o->h() > RH ? o->h() : RH;
-
- }
- }
-
- LW = o->w();
- LH = o->h();
-
- LX = X;
- LY = Y;
-
- if ( _flow )
- {
- if ( _flowdown )
- {
- Y += LH + _vspacing;
- X += CW + _hspacing;
- }
- else
- {
- Y += RH + _vspacing;
- X += LW + _hspacing;
- }
- }
- else
- {
- if ( type() == Fl_Pack::HORIZONTAL )
- {
- X += LW + _hspacing;
- LH = _initial_height;
- W = X;
- }
- else
- {
- Y += LH + _vspacing;
- LW = _initial_width;
- H = Y;
- }
- }
-
-
- if ( ! ( o->x() == x() + LX &&
- o->y() == y() + LY &&
- o->w() == LW &&
- o->h() == LH ) )
- o->resize( x() + LX,
- y() + LY,
- LW,
- LH);
- }
-
- if ( _flow )
- {
- H += RH;
- if ( X > W )
- W = X;
-
- /* if ( _flowdown ) */
- /* H = _initial_height; */
- }
-
- Fl_Group::resize( x(), y(), W, H );
- }
- };
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