cslayout.h Source File

00001 /*
00002     Copyright (C) Aleksandras Gluchovas
00003     CS port by Norman Krämer <norman@users.sourceforge.net>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library 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 GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CSLAYOUT_H__
00021 #define __CSLAYOUT_H__
00022 
00023 #include "csws/csdialog.h"
00024 #include "csgeom/cspoint.h"
00025 
00030 class csLayoutConstraint
00031 {
00032 public:
00034   csComponent *comp;
00035 public:
00037   csLayoutConstraint ()
00038   { comp = NULL; }
00040   csLayoutConstraint (csComponent *comp)
00041   { this->comp = comp; }
00043   virtual ~csLayoutConstraint () {}
00045   virtual csLayoutConstraint *Clone ();
00046 };
00047 
00053 class csConstraintVector : public csVector
00054 {
00055 public:
00057   virtual int Compare (csSome Item1, csSome Item2, int Mode = 0) const
00058   {
00059     (void)Mode;
00060     csLayoutConstraint *c1 = (csLayoutConstraint *)Item1;
00061     csLayoutConstraint *c2 = (csLayoutConstraint *)Item2;
00062     return (c1->comp < c2->comp ? -1 : c1->comp > c2->comp ? 1 : 0);
00063   }
00065   virtual int CompareKey (csSome Item1, csConstSome Item2, int Mode = 0) const
00066   {
00067     (void)Mode;
00068     csLayoutConstraint *c1 = (csLayoutConstraint *)Item1;
00069     csComponent *c2 = (csComponent *)Item2;
00070     return (c1->comp < c2 ? -1 : c1->comp > c2 ? 1 : 0);
00071   }
00073   virtual bool FreeItem (csSome Item)
00074   { if (Item) delete (csLayoutConstraint *)Item; return true; }
00076   csLayoutConstraint *Get (int idx)
00077   { return (csLayoutConstraint *)csVector::Get (idx); }
00078 };
00079 
00105 class csLayout : public csDialog
00106 {
00107 protected:
00114   static bool mUseTwoPhaseLayoutingGlobally;
00115   static int mCurrentLayoutingPhase;
00117   bool bRecalcLayout;
00119   csConstraintVector vConstraints;
00121   csLayoutConstraint *lc;
00122 
00123 public:
00125   csRect insets;
00126   enum LAYOUTING_PHASES {PHASE_0 = 0, PHASE_1 = 1};
00130   csLayoutConstraint c;
00131 
00132 public:
00133   csLayout (csComponent *iParent, csDialogFrameStyle iFrameStyle = csdfsNone);
00134 
00146   virtual csLayoutConstraint *AddLayoutComponent (csComponent *comp);
00148   virtual void RemoveLayoutComponent (csComponent *comp);
00150   virtual void SuggestSize (int &sugw, int& sugh) = 0;
00152   virtual void LayoutContainer () = 0;
00155   virtual void InvalidateLayout ();
00156 
00158   virtual int GetLayoutingPhase ();
00160   virtual void SetLayoutingPhase (int phase);
00162   virtual csPoint GetPhase0Size ();
00164   virtual bool TwoPhaseLayoutingEnabled ();
00166   static void SetTwoPhaseLayoutingGlobally (bool on);
00167 
00169   virtual void Insert (csComponent *child);
00170   virtual bool HandleEvent (iEvent &Event);
00171   virtual void Draw ();
00172   virtual bool SetRect (int xmin, int ymin, int xmax, int ymax);
00173   virtual void FixSize (int &newWidth, int &newHeight);
00174 };
00175 
00180 class csLayout2 : public csLayout
00181 {
00182  public:
00183   csLayout2 (csComponent *pParent);
00184 
00185   virtual void MaximumLayoutSize (int &w, int &h) = 0;
00186   virtual float GetLayoutAlignmentX () = 0;
00187   virtual float GetLayoutAlignmentY () = 0;
00188 };
00189 
00190 #endif // __CSLAYOUT_H__