csmenu.h Source File

00001 /*
00002     Crystal Space Windowing System: menu class
00003     Copyright (C) 1998,1999 by Andrew Zabolotny <bit@eltech.ru>
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 __CSMENU_H__
00021 #define __CSMENU_H__
00022 
00023 #include "cscomp.h"
00024 
00034 
00035 #define CSMIS_CHECKED           0x00000001
00036 
00037 #define CSMIS_SEPARATOR         0x00000010
00038 
00039 #define CSMIS_NEWCOLUMN         0x00000020
00040 
00041 #define CSMIS_NOCLOSE           0x00000040
00042 
00043 #define CSMIS_DEFAULTVALUE      0
00044 
00045 // Forward declaration (for usage in csMenuItem)
00046 class csMenu;
00047 
00049 class csMenuItem : public csComponent
00050 {
00052   char *info;
00054   int underline_pos;
00056   int Style;
00058   int CommandCode;
00060   csMenu *SubMenu;
00061 
00062 public:
00064   csMenuItem (csComponent *iParent, const char *iText,
00065     int iCommandCode = 0, int iStyle = CSMIS_DEFAULTVALUE);
00066 
00068   csMenuItem (csComponent *iParent, int iStyle = CSMIS_DEFAULTVALUE);
00069 
00071   csMenuItem (csComponent *iParent, const char *iText, csMenu *iSubMenu,
00072     int iStyle = CSMIS_DEFAULTVALUE);
00073 
00075   virtual ~csMenuItem ();
00076 
00078   virtual void SuggestSize (int &w, int &h);
00079 
00081   virtual void SetText (const char *iText);
00082 
00084   virtual bool HandleEvent (iEvent &Event);
00085 
00087   virtual void Draw ();
00088 
00090   virtual bool SetRect (int xmin, int ymin, int xmax, int ymax);
00091 
00092 protected:
00094   static csPixmap *sprchecked;
00096   static csPixmap *sprsubmenu;
00097 
00099   void Init ();
00100 
00102   virtual void Press ();
00103 };
00104 
00106 enum
00107 {
00114   cscmdDeactivateMenu = 0x00000200,
00119   cscmdMenuPlaceItems,
00127   cscmdMenuCaptureMouse,
00135   cscmdMenuSetItem,
00139   cscmdMenuSetLastItem,
00147   cscmdMenuQueryDropFlag,
00155   cscmdMenuSetDropFlag,
00167   cscmdMenuItemCheck,
00175   cscmdMenuItemGetStyle,
00184   cscmdMenuItemFindId
00185 };
00186 
00188 enum csMenuFrameStyle
00189 {
00191   csmfsNone,
00193   csmfsThin,
00195   csmfsBar,
00197   csmfs3D
00198 };
00199 
00201 #define CSMS_HIDEINACTIVE       0x00000001
00202 
00203 #define CSMS_DEFAULTVALUE       CSMS_HIDEINACTIVE
00204 
00209 class csMenu : public csComponent
00210 {
00211   friend class csMenuItem;
00212 
00214   int BorderWidth,BorderHeight;
00216   int FrameStyle;
00218   int MenuStyle;
00220   csComponent *first;
00222   csComponent *last;
00224   csComponent *oldparentfocus;
00226   bool SubMenuOpened;
00228   bool fPlaceItems;
00229 
00230 public:
00232   csComponent *current;
00233 
00235   csMenu (csComponent *iParent, csMenuFrameStyle iFrameStyle = csmfs3D,
00236     int iMenuStyle = CSMS_DEFAULTVALUE);
00237 
00239   virtual void Draw ();
00240 
00242   virtual bool HandleEvent (iEvent &Event);
00243 
00245   virtual bool PreHandleEvent (iEvent &Event);
00246 
00248   bool CurrentHandleEvent (iEvent &Event);
00249 
00251   virtual void PlaceItems ();
00252 
00254   bool IsMenuBar ()
00255   { return (FrameStyle == csmfsBar); }
00256 
00258   virtual void SetState (int mask, bool enable);
00259 
00261   bool SetCurrent (csComponent *newCurrent, bool DropSubmenu = false);
00262 
00264   virtual bool SetRect (int xmin, int ymin, int xmax, int ymax);
00265 
00267   void Deactivate (int DismissCode);
00268 
00270   csComponent *GetItem (int iCommandCode);
00271 
00273   void SetCheck (int iCommandCode, bool iState);
00274 
00276   virtual void Insert (csComponent *comp);
00277 
00279   virtual void Delete (csComponent *comp);
00280 
00282   virtual void SuggestSize (int &w, int &h);
00283 
00284 private:
00286   void SetItemWidth (csComponent *start, int count, int width);
00287 
00289   virtual bool ExecuteKey (int key);
00290 };
00291 
00311 #endif // __CSMENU_H__