src/x11/xwellimagefont.cxx

   1 // docm_prefix(///)
   2 /****************************************************************************
   3 *  Copyright (C) 2002 by Leo Khramov
   4 *  email:   leo@xnc.dubna.su
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15  ****************************************************************************/
  16 // $Id: xwellimagefont.cxx,v 1.1.1.1 2003/01/04 11:37:22 leo Exp $
  17
  18 /// module description
  19 /// X11 version of imagefont - displays text with X11 calls, work with pixmaps
  20 /// loaded thought XWellEngine class
  21
  22 #include "xwellimagefont.h"
  23
  24 //===========================================================================
  25 /// global XWellImageFont(Images id, unsigned int ifl, unsigned int ifh, int idx, int idy)
  26 ///   Constructor of base draw text class
  27 /// tags XWellImageFont
  28 XWellImageFont::XWellImageFont(Images id, unsigned int ifl, unsigned int ifh,
  29                                int idx, int idy):
  30   WellImageFont(id,ifl,ifh,idx,idy)
  31 {
  32   xengine=(XWellEngine*) default_well_engine;
  33   font_pixmap=xengine->get_pixmap_of_image(id);
  34   mainw=xengine->get_main_window();
  35   maingc=xengine->get_main_gc();
  36 }
  37
  38 //===========================================================================
  39 /// global clear_region()
  40 ///   clear region on screen for making output
  41 /// tags XWellImageFont
  42 void XWellImageFont::clear_region()
  43 {
  44   XClearArea(disp,mainw,screen_x,screen_y,screen_l,screen_h,False);
  45 }
  46
  47 //===========================================================================
  48 /// global clear_region()
  49 ///   clear region on screen for making output
  50 /// tags XWellImageFont
  51 void XWellImageFont::clear_region(Colors idx)
  52 {
  53   unsigned long *cols=xengine->get_colors();
  54   XSetForeground(disp,maingc,cols[idx]);
  55   XFillRectangle(disp,mainw,maingc,screen_x,screen_y,screen_l,screen_h);
  56 }
  57
  58 //===========================================================================
  59 /// global draw_symbol(...)
  60 ///   draw one symbol from font image to screen
  61 /// tags XWellImageFont
  62 void XWellImageFont::draw_symbol(int ix, int iy,
  63                                 unsigned int il,
  64                                 unsigned int ih,
  65                                 char symb)
  66 {
  67   if(symb<=32 || symb>=127)
  68     return;
  69   symb-=33;  //Translate to our indexation
  70   XCopyArea(disp,font_pixmap,mainw,maingc,
  71             dx,dy+(int)symb*font_h,
  72             il,ih,ix,iy);
  73 }
  74