src/Xw/Xw_def_highlight_color.cxx

   1 // Copyright (c) 1999-2012 OPEN CASCADE SAS
   2 //
   3 // The content of this file is subject to the Open CASCADE Technology Public
   4 // License Version 6.5 (the "License"). You may not use the content of this file
   5 // except in compliance with the License. Please obtain a copy of the License
   6 // at http://www.opencascade.org and read it completely before using this file.
   7 //
   8 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
   9 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
  10 //
  11 // The Original Code and all software distributed under the License is
  12 // distributed on an "AS IS" basis, without warranty of any kind, and the
  13 // Initial Developer hereby disclaims all such warranties, including without
  14 // limitation, any warranties of merchantability, fitness for a particular
  15 // purpose or non-infringement. Please see the License for the specific terms
  16 // and conditions governing the rights and limitations under the License.
  17
  18
  19 #include <Xw_Extension.h>
  20
  21 /* ifdef then trace on */
  22 #ifdef TRACE
  23 #define TRACE_DEF_HIGHLIGHT_COLOR
  24 #endif
  25
  26 /*
  27    STATUS Xw_def_highlight_color(acolormap,r,g,b):
  28    XW_EXT_COLORMAP *acolormap
  29    float r,g,b ;        Red,Green,Blue color value 0. >= x <= 1.
  30
  31         Update Highlight Color index with the specified R,G,B values .
  32         NOTE than highlight color is shared between all Windows
  33
  34         Returns ERROR if Extended Colormap is not properly defined
  35         Returns SUCCESS if Successful
  36
  37 */
  38
  39 #ifdef XW_PROTOTYPE
  40 XW_STATUS Xw_def_highlight_color (void* acolormap,
  41                                         float r,float g,float b)
  42 #else
  43 XW_STATUS Xw_def_highlight_color (acolormap,r,g,b)
  44 void *acolormap;
  45 float r,g,b ;
  46 #endif /*XW_PROTOTYPE*/
  47 {
  48 XW_EXT_COLORMAP *pcolormap = (XW_EXT_COLORMAP*)acolormap ;
  49 XColor color ;
  50 int i,cclass,index = -1,isapproximate ;
  51 XW_STATUS status = XW_SUCCESS;
  52 unsigned long highpixel;
  53
  54         if ( !Xw_isdefine_colormap(pcolormap) ) {
  55              /*ERROR*Bad EXT_COLORMAP Address*/
  56              Xw_set_error(42,"Xw_def_highlight_color",pcolormap) ;
  57              return (XW_ERROR) ;
  58         }
  59
  60         if( pcolormap->mapping == Xw_TOM_READONLY ) {
  61           cclass = StaticColor;
  62         } else {
  63           cclass = _CCLASS;
  64         }
  65
  66         switch ( cclass ) {
  67
  68             case TrueColor :
  69                 Xw_get_color_pixel(pcolormap,r,g,b,&highpixel,&isapproximate) ;
  70                 break ;
  71
  72             case PseudoColor :
  73                 if( pcolormap->mapping == Xw_TOM_COLORCUBE ) {
  74                     if( (_CGINFO.red_mult > 0) && (fabs(r-g) < 0.01) && (fabs(r-b) < 0.01) ) {
  75                       index = (int)(0.5+r*_CGINFO.red_max)*_CGINFO.red_mult;
  76                       if( _CINFO.red_max > 0 )
  77                                 index += (_CINFO.red_max+1)*(_CINFO.green_max+1)*(_CINFO.blue_max+1);
  78                     } else if( _CINFO.red_mult > 0 ) {
  79                       index = ((int)(0.5+r*_CINFO.red_max))*_CINFO.red_mult+
  80                             ((int)(0.5+g*_CINFO.green_max))*_CINFO.green_mult+
  81                             ((int)(0.5+b*_CINFO.blue_max))*_CINFO.blue_mult;
  82                     } else if( _CGINFO.red_mult > 0 ) {
  83                       float l = (r+g+b)/3.;
  84                       index = (int)(0.5+l*_CGINFO.red_max)*_CGINFO.red_mult;
  85                     } else {
  86                       index = 0;
  87                     }
  88                     highpixel = _CINFO.base_pixel + index ;
  89                 } else if( pcolormap->mapping == Xw_TOM_BESTRAMP ) {
  90                     color.red   = (unsigned short) (r * 0xFFFF) ;
  91                     color.green = (unsigned short) (g * 0xFFFF) ;
  92                     color.blue  = (unsigned short) (b * 0xFFFF) ;
  93                     color.flags = DoRed|DoGreen|DoBlue ;
  94                     for( i=0 ; i<pcolormap->maxcolor ; i++ ) {
  95                       if( (pcolormap->pixels[i] & 1) &&
  96                             ((pcolormap->define[i] == FREECOLOR) ||
  97                              (pcolormap->define[i] == HIGHCOLOR)) ) {
  98                          pcolormap->define[i] = HIGHCOLOR ;
  99                          color.pixel =  pcolormap->pixels[i] ;
 100                          XStoreColor(_CDISPLAY,_CINFO.colormap,&color) ;
 101                        }
 102                     }
 103                     highpixel = pcolormap->pixels[1];
 104                 } else if( pcolormap->mapping == Xw_TOM_SIMPLERAMP ) {
 105                     Xw_get_color_index(pcolormap,r,g,b,&index) ;
 106                     highpixel = _CINFO.base_pixel + index ;
 107                 }
 108                 break ;
 109
 110             case StaticColor :
 111                 status = Xw_alloc_color(pcolormap,r,g,b,&highpixel,&isapproximate) ;
 112                 break ;
 113         }
 114
 115         if( status ) {
 116           if( index >= 0 ) {
 117             pcolormap->define[index] = HIGHCOLOR ;
 118           }
 119           pcolormap->highpixel  = highpixel ;
 120 #ifdef BUG_PRO3709
 121           Xw_reset_attrib(NULL) ;
 122 #endif
 123         }
 124
 125 #ifdef TRACE_DEF_HIGHLIGHT_COLOR
 126 if( Xw_get_trace() ) {
 127     printf(" %d = Xw_def_highlight_color(%lx,%f,%f,%f)\n",status,(long ) pcolormap,r,g,b) ;
 128 }
 129 #endif
 130         return (status);
 131 }