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/* $Id: plxwd.h,v 1.4 2007/05/17 10:37:26 ajb Exp $
Holds system header includes, prototypes of xwin driver
utility functions, and definition of the state structure.
*/
#ifndef __PLXWD_H__
#define __PLXWD_H__
#include "plplot.h"
#include "plstrm.h"
#ifdef HAVE_PTHREAD
#include <pthread.h>
#endif
/* System headers */
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
/* Specify max number of displays in use */
#define PLXDISPLAYS 100
/* Set constants for dealing with colormap. In brief:
*
* ccmap When set, turns on custom color map
*
* See Init_CustomCmap() and Init_DefaultCmap() for more info.
* Set ccmap at your own risk -- still under development.
*/
static int plplot_ccmap = 0;
/* One of these holds the display info, shared by all streams on a given */
/* display */
typedef struct {
int nstreams; /* Number of streams using display */
int ixwd; /* Specifies xwDisplay number */
char *displayName; /* Name of X display */
int screen; /* X screen */
int Padding1;
Display *display; /* X display */
Visual *visual; /* X Visual */
GC gcXor; /* Graphics context for XOR draws */
Colormap map; /* Colormap */
unsigned depth; /* display depth */
int color; /* Set to 1 if a color output device */
int ncol0; /* Number of cmap 0 colors */
int ncol0_alloc; /* Keeps track of storage for *cmap0 */
int ncol1; /* Number of cmap 1 colors */
int ncol1_alloc; /* Keeps track of storage for *cmap1 */
XColor *cmap0; /* Color entries for cmap 0 */
XColor *cmap1; /* Color entries for cmap 1 */
XColor fgcolor; /* Foreground color (if grayscale) */
Cursor xhair_cursor; /* Crosshair cursor */
int rw_cmap; /* Can we allocate r/w color cells? */
int Padding2;
} XwDisplay;
/* One of these holds the X driver state information */
typedef struct {
XwDisplay *xwd; /* Pointer to display info */
int is_main; /* Set if the toplevel X window */
int Padding1;
Window window; /* X window id */
Pixmap pixmap; /* Off-screen pixmap */
GC gc; /* Graphics context */
XColor curcolor; /* Current pen color */
long event_mask; /* Event mask */
int exit_eventloop; /* Breaks the event loop when set */
int Padding2;
long init_width; /* Initial window width */
long init_height; /* Initial window height */
unsigned width, height, border; /* Current window dimensions */
unsigned Padding3;
double xscale_init; /* initial pixels/lx (virt. coords) */
double yscale_init; /* initial pixels/ly (virt. coords) */
double xscale; /* as above, but current value */
double yscale; /* (after possible resizing) */
short xlen, ylen; /* Lengths of device coord space */
int write_to_window; /* Set if plotting direct to window */
int write_to_pixmap; /* Set if plotting to pixmap */
int instr; /* Instruction timer */
int max_instr; /* Limit before X server is queried */
PLGraphicsIn gin; /* Graphics input structure */
int locate_mode; /* Set while in locate mode */
int drawing_xhairs; /* Set during xhair draws */
XPoint xhair_x[2], xhair_y[2]; /* Crosshair lines */
void (*MasterEH) (PLStream *, XEvent *); /* Master X event handler */
#ifdef HAVE_PTHREAD
pthread_t updater; /* The X events updater thread id */
#endif
} XwDev;
#endif /* __PLXWD_H__ */
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