1 // 2 // "$Id: Fl_Tile.H 7981 2010-12-08 23:53:04Z greg.ercolano $" 3 // 4 // Tile header file for the Fast Light Tool Kit (FLTK). 5 // 6 // Copyright 1998-2010 by Bill Spitzak and others. 7 // 8 // This library is free software; you can redistribute it and/or 9 // modify it under the terms of the GNU Library General Public 10 // License as published by the Free Software Foundation; either 11 // version 2 of the License, or (at your option) any later version. 12 // 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 // Library General Public License for more details. 17 // 18 // You should have received a copy of the GNU Library General Public 19 // License along with this library; if not, write to the Free Software 20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 21 // USA. 22 // 23 // Please report all bugs and problems on the following page: 24 // 25 // http://www.fltk.org/str.php 26 // 27 28 /* \file 29 Fl_Tile widget . */ 30 31 #ifndef Fl_Tile_H 32 #define Fl_Tile_H 33 34 #include "Fl_Group.H" 35 36 /** 37 The Fl_Tile class lets you resize the children by dragging 38 the border between them: 39 40 <P ALIGN=CENTER>\image html Fl_Tile.png </P> 41 \image latex Fl_Tile.png "Fl_Tile" width=4cm 42 43 <P>For the tiling to work correctly, the children of an 44 Fl_Tile must cover the entire area of the widget, but not 45 overlap. This means that all children must touch each 46 other at their edges, and no gaps can't be left inside the 47 Fl_Tile. 48 49 <P>Fl_Tile does not normailly draw any graphics of its own. 50 The "borders" which can be seen in the snapshot above 51 are actually part of the children. Their boxtypes have been set 52 to FL_DOWN_BOX creating the impression of 53 "ridges" where the boxes touch. What you see are 54 actually two adjacent FL_DOWN_BOX's drawn next to each 55 other. All neighboring widgets share the same edge - the widget's 56 thick borders make it appear as though the widgets aren't actually 57 touching, but they are. If the edges of adjacent widgets do not 58 touch, then it will be impossible to drag the corresponding 59 edges.</P> 60 61 <P>Fl_Tile allows objects to be resized to zero dimensions. 62 To prevent this you can use the resizable() to limit where 63 corners can be dragged to.</P> 64 65 <P>Even though objects can be resized to zero sizes, they must 66 initially have non-zero sizes so the Fl_Tile can figure out 67 their layout. If desired, call position() after creating the 68 children but before displaying the window to set the borders where you 69 want. 70 71 <P>Note on resizable(Fl_Widget &w) : 72 The "resizable" child widget (which should be invisible) limits where the 73 border can be dragged to. If you don't set it, it will be possible to 74 drag the borders right to the edge, and thus resize objects on the edge 75 to zero width or height. The resizable() widget is not 76 resized by dragging any borders. See also void Fl_Group::resizable(Fl_Widget &w) 77 78 */ 79 class FL_EXPORT Fl_Tile : public Fl_Group { 80 public: 81 int handle(int); 82 /** 83 Creates a new Fl_Tile widget using the given position, size, 84 and label string. The default boxtype is FL_NO_BOX. 85 86 <P>The destructor <I>also deletes all the children</I>. This allows a 87 whole tree to be deleted at once, without having to keep a pointer to 88 all the children in the user code. A kludge has been done so the 89 Fl_Tile and all of it's children can be automatic (local) 90 variables, but you must declare the Fl_Tile <I>first</I>, so 91 that it is destroyed last. 92 */ Fl_Group(X,Y,W,H,l)93 Fl_Tile(int X,int Y,int W,int H,const char*l=0) : Fl_Group(X,Y,W,H,l) {} 94 void resize(int, int, int, int); 95 void position(int, int, int, int); 96 }; 97 98 #endif 99 100 // 101 // End of "$Id: Fl_Tile.H 7981 2010-12-08 23:53:04Z greg.ercolano $". 102 // 103