Actual source code: ximpl.h
1: /*
2: Defines the internal data structures for the X-windows
3: implementation of the graphics functionality in PETSc.
4: */
6: #ifndef _XIMPL_H
7: #define _XIMPL_H
8: #include <petsc/private/drawimpl.h>
10: #include <X11/Xlib.h>
11: #include <X11/Xutil.h>
13: typedef unsigned long PetscDrawXiPixVal;
15: typedef struct {
16: GC set;
17: PetscDrawXiPixVal cur_pix;
18: } PetscDrawXiGC;
20: typedef struct {
21: Font fnt;
22: int font_w, font_h;
23: int font_descent;
24: PetscDrawXiPixVal font_pix;
25: } PetscDrawXiFont;
27: typedef struct {
28: Display *disp; /* Display */
29: int screen; /* Screen of display */
30: Visual *vis; /* Graphics visual */
31: int depth; /* Depth of visual */
32: PetscDrawXiGC gc; /* Graphics context */
33: PetscDrawXiFont *font; /* Current font */
34: Window win; /* Window */
35: Drawable drw; /* Pixmap */
36: Colormap cmap; /* Colormap */
37: int cmapsize; /* Number of allocated colors */
38: PetscDrawXiPixVal foreground; /* Foreground pixel */
39: PetscDrawXiPixVal background; /* Background pixel */
40: PetscDrawXiPixVal cmapping[PETSC_DRAW_MAXCOLOR]; /* Map color -> pixel value */
41: unsigned char cpalette[PETSC_DRAW_MAXCOLOR][3]; /* Map color -> RGB value*/
42: int x, y, w, h; /* Location and size window */
43: } PetscDraw_X;
45: #define PetscDrawXiDrawable(w) ((w)->drw ? (w)->drw : (w)->win)
47: static inline void PetscDrawXiSetPixVal(PetscDraw_X *W, PetscDrawXiPixVal pix)
48: {
49: if (W->gc.cur_pix != pix) {
50: XSetForeground(W->disp, W->gc.set, pix);
51: W->gc.cur_pix = pix;
52: }
53: }
55: #if defined(PETSC_USE_DEBUG)
56: #define PetscDrawXiValidColor(W, color) PetscCheck((color) >= 0 && (color) < PETSC_DRAW_MAXCOLOR, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Color value %" PetscInt_FMT " out of range [0..%d]", (PetscInt)(color), PETSC_DRAW_MAXCOLOR - 1)
57: #else
58: #define PetscDrawXiValidColor(W, color) \
59: do { \
60: } while (0)
61: #endif
63: #define PetscDrawXiSetColor(W, color) \
64: do { \
65: PetscDrawXiValidColor(W, color); \
66: PetscDrawXiSetPixVal(W, (W)->cmapping[(color)]); \
67: } while (0)
69: PETSC_INTERN PetscErrorCode PetscDrawXiInit(PetscDraw_X *, const char[]);
70: PETSC_INTERN PetscErrorCode PetscDrawXiClose(PetscDraw_X *);
71: PETSC_INTERN PetscErrorCode PetscDrawXiFontFixed(PetscDraw_X *, int, int, PetscDrawXiFont **);
72: PETSC_INTERN PetscErrorCode PetscDrawXiColormap(PetscDraw_X *);
73: PETSC_INTERN PetscErrorCode PetscDrawXiQuickWindow(PetscDraw_X *, char *, int, int, int, int);
74: PETSC_INTERN PetscErrorCode PetscDrawXiQuickWindowFromWindow(PetscDraw_X *, Window);
75: PETSC_INTERN PetscErrorCode PetscDrawXiQuickPixmap(PetscDraw_X *);
76: PETSC_INTERN PetscErrorCode PetscDrawXiResizeWindow(PetscDraw_X *, int, int);
77: PETSC_INTERN PetscErrorCode PetscDrawXiGetGeometry(PetscDraw_X *, int *, int *, int *, int *);
79: #endif