/*****************************************************************************
#   Copyright (C) 1994-2008 by David Gordon.
#   All rights reserved.                           
#                                                                           
#   This software is part of a beta-test version of the Consed/Autofinish
#   package.  It should not be redistributed or
#   used for any commercial purpose, including commercially funded
#   sequencing, without written permission from the author and the
#   University of Washington.
#   
#   This software is provided ``AS IS'' and any express or implied
#   warranties, including, but not limited to, the implied warranties of
#   merchantability and fitness for a particular purpose, are disclaimed.
#   In no event shall the authors or the University of Washington be
#   liable for any direct, indirect, incidental, special, exemplary, or
#   consequential damages (including, but not limited to, procurement of
#   substitute goods or services; loss of use, data, or profits; or
#   business interruption) however caused and on any theory of liability,
#   whether in contract, strict liability, or tort (including negligence
#   or otherwise) arising in any way out of the use of this software, even
#   if advised of the possibility of such damage.
#
#   Building Consed from source is error prone and not simple which is
#   why I provide executables.  Due to time limitations I cannot
#   provide any assistance in building Consed.  Even if you do not
#   modify the source, you may introduce errors due to using a
#   different version of the compiler, a different version of motif,
#   different versions of other libraries than I used, etc.  For this
#   reason, if you discover Consed bugs, I can only offer help with
#   those bugs if you first reproduce those bugs with an executable
#   provided by me--not an executable you have built.
# 
#   Modifying Consed is also difficult.  Although Consed is modular,
#   some modules are used by many other modules.  Thus making a change
#   in one place can have unforeseen effects on many other features.
#   It may takes months for you to notice these other side-effects
#   which may not seen connected at all.  It is not feasable for me to
#   provide help with modifying Consed sources because of the
#   potentially huge amount of time involved.
#
#*****************************************************************************/
//
// guicolortext.h
//
// guicolortext is essentially a wrapper for a graphics context.
// the object creates a graphics context based on the desired
// foreground & background colors (named as strings, and possibly
// obtained from application defaults), the drawable window,
// and the font struct.
//
// this object knows nothing about the app, even the higher level
// motif windows, etc.  it entirely dependent on X windows.
//
// gordon ("GUIColor")  Dec-94
//

#ifndef GUICOLORTEXT_INCLUDED
#define GUICOLORTEXT_INCLUDED


#ifdef SCCS_ID
static const char* guiColorTextSccsId = "@(#)guicolortext.h	1.9 04/19/96 04:00:30";
#endif


#include <X11/Xlib.h>
#include <Xm/Xm.h>

#include "rwcstring.h"

#include "sysdepend.h"

////////////////////////////////////////////////////////////
//
// PURPOSE: to allow consed to use an object that hides all of
//      the X-specific graphics context information
//
// HOW TO USE IT:  it is perfectly OK for the constructor to
//      have X-specific info.  Then this info is hidden in
//      its private data, and used by the gui side.
//
////////////////////////////////////////////////////////////


class GuiColorText {
 public:

   GuiColorText(const char* szForeground,
                const char* szBackground);

   GuiColorText(XFontStruct* pFont,
                           const char* szForegroundColor,
                           const char* szBackgroundColor,
                           const XGCValues    xgcvaluesAdditional,
                           const unsigned long    ulMaskAdditional);
   GuiColorText();

   // returns a gc used for drawing text with foreground, background
   // colors as specified in ctor
   GC gcGet() { finishInit(); return gcNormal_; }

   // returns a gc used for drawing text with foreground, background
   // reversed, for use as a cursor.  this will probably need to be
   // changed for visibility, perhaps by explicitly supplying colors
   // for cursor foreground & background.  for now it just reverses them.
   GC gcGetReverse() { finishInit(); return gcReverse_; }


   void changeLineWidth( const int nThickness );

   // fix for hp compiler using RWTPtrOrderedVector
   bool operator==( const GuiColorText& gct ) const {
      return( this == &gct );
   }

 public:
   // at some point we may have to deallocate/reallocate these on the
   // fly.  in that case a private data member such as "bool bGcExists"
   // will indicate status.

   // rather than just saving the widget, preserve the stuff we
   // need to make graphics context calls
   XFontStruct* pFont_;

   // X crashes (?) if you try to allocate the colormap before the
   // window is realized.  so here we defer the actual allocation
   // and GC creation until the first time a gcGet() member is called.
   bool bInitFinished_;
   void finishInit();  // called automatically by gcGet(), getCursorGC()
   // will need these as well

   RWCString soForegroundColor_;
   RWCString soBackgroundColor_;
   XGCValues    xgcvaluesAdditional_;
   unsigned long    ulMaskAdditional_;



   GC gcNormal_;
   GC gcReverse_;
};







#endif  // GUICOLORTEXT_INCLUDED