Actual source code: ximpl.h

  2: /*
  3:       Defines the internal data structures for the X-windows 
  4:    implementation of the graphics functionality in PETSc.
  5: */

  7: #include <../src/sys/draw/drawimpl.h>

  9: #if !defined(_XIMPL_H)
 10: #define _XIMPL_H

 12: #include <sys/types.h>
 13: #include <X11/Xlib.h>
 14: #include <X11/Xutil.h>

 16: typedef unsigned long PixVal;

 18: typedef struct {
 19:     GC       set;
 20:     PixVal   cur_pix;
 21: } XiGC;

 23: typedef struct {
 24:   Font     fnt;
 25:   int      font_w,font_h;
 26:   int      font_descent;
 27:   PixVal   font_pix;
 28: } XiFont;

 30: typedef struct {
 31:     Display  *disp;
 32:     int      screen;
 33:     Window   win;
 34:     Visual   *vis;            /* Graphics visual */
 35:     XiGC     gc;
 36:     XiFont   *font;
 37:     int      depth;           /* Depth of visual */
 38:     int      numcolors,      /* Number of available colors */
 39:              maxcolors;       /* Current number in use */
 40:     Colormap cmap;
 41:     PixVal   foreground,background;
 42:     PixVal   cmapping[256];
 43:     int      x,y,w,h;      /* Size and location of window */
 44:     Drawable drw;
 45: } PetscDraw_X;

 47: #define XiDrawable(w) ((w)->drw ? (w)->drw : (w)->win)

 49: #define XiSetColor(Win,icolor)\
 50:   {if (icolor >= 256 || icolor < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Color value out of range");\
 51:    if ((Win)->gc.cur_pix != (Win)->cmapping[icolor]) { \
 52:      XSetForeground((Win)->disp,(Win)->gc.set,(Win)->cmapping[icolor]); \
 53:      (Win)->gc.cur_pix   = (Win)->cmapping[icolor];\
 54:   }}

 56: #define XiSetPixVal(Win,pix)\
 57:   {if ((PixVal) (Win)->gc.cur_pix != pix) { \
 58:      XSetForeground((Win)->disp,(Win)->gc.set,pix); \
 59:      (Win)->gc.cur_pix   = pix;\
 60:   }}

 62: typedef struct {
 63:   int      x,y,xh,yh,w,h;
 64: } XiRegion;

 66: typedef struct {
 67:   XiRegion Box;
 68:   int      width,HasColor,is_in;
 69:   PixVal   Hi,Lo;
 70: } XiDecoration;

 72: #endif