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#include <stdio.h>
#include <X11/Xlib.h>
#include "generic.h"
typedef struct {
ltgenericd g;
Display *dpy;
int depth;
char *name;
int screen;
Window root;
Colormap cmap;
tcolor black, white;
} ltdisplayd, *ltdisplay;
tdisplay tdisplay_new(name, args)
char *name;
targs args;
{
ltdisplay dpy;
/* allocate memory */
dpy=(ltdisplay)titem_new(NULL, lt_display, sizeof(ltdisplayd));
if(dpy==NULL)
return(NULL);
/* check format of name */
if(strlen(name)==0)
name=NULL;
/* open the display */
if((dpy->dpy=XOpenDisplay(name))==NULL)
{
titem_free(dpy);
return(NULL);
}
/* store name, screen, root window, colormap, black and white colors */
dpy->name=(char *)strdup(name);
dpy->screen=DefaultScreen(dpy->dpy);
dpy->root=RootWindow(dpy->dpy, dpy->screen);
dpy->cmap=DefaultColormap(dpy->dpy, dpy->screen);
dpy->black=tcolor_black(dpy);
dpy->white=tcolor_white(dpy);
dpy->depth=DefaultDepth(dpy->dpy, dpy->screen);
return((tdisplay)dpy);
}
tdisplay tdisplay_create_from_xdpy(xdpy)
Display *xdpy;
{
ltdisplay dpy;
if(xdpy==NULL)
return(NULL);
dpy=(ltdisplay)titem_new(NULL, lt_display, sizeof(ltdisplayd));
if(dpy==NULL)
return(NULL);
dpy->dpy=xdpy;
dpy->name=NULL;
dpy->screen=DefaultScreen(dpy->dpy);
dpy->root=RootWindow(dpy->dpy, dpy->screen);
dpy->cmap=DefaultColormap(dpy->dpy, dpy->screen);
dpy->black=tcolor_black(dpy);
dpy->white=tcolor_white(dpy);
dpy->depth=DefaultDepth(dpy->dpy, dpy->screen);
return((tdisplay)dpy);
}
int tdisplay_free(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(0);
if(titem_type(dpy)!=lt_display)
return(0);
/* free the name */
if(dpy->name!=NULL)
free(dpy->name);
/* close it */
XCloseDisplay(dpy->dpy);
/* free the memory */
titem_free(dpy);
return(1);
}
Display *tdisplay_X(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return X display */
return(dpy->dpy);
}
Window tdisplay_XRoot(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return Root */
return(dpy->root);
}
Colormap tdisplay_XColormap(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return Colormap */
return(dpy->cmap);
}
int tdisplay_XScreen(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return screen */
return(dpy->screen);
}
tcolor tdisplay_Black(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return black color */
return(dpy->black);
}
tcolor tdisplay_White(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return white color */
return(dpy->white);
}
int tdisplay_depth(dpy)
ltdisplay dpy;
{
/* check type of dpy */
if(dpy==NULL)
return(NULL);
if(titem_type(dpy)!=lt_display)
return(NULL);
/* return depth */
return(dpy->depth);
}
double tdisplay_dpi_x(dpy)
titem dpy;
{
ltdisplay d;
int width, millimeters;
double dpi;
d=(ltdisplay)titem_display(dpy);
if(d==NULL)
return(0.0);
width=DisplayWidth(d->dpy, d->screen);
millimeters=DisplayWidthMM(d->dpy, d->screen);
dpi=width/(millimeters/25.4); /* convert to inches */
return(dpi);
}
double tdisplay_dpi_y(dpy)
titem dpy;
{
ltdisplay d;
int height, millimeters;
double dpi;
d=(ltdisplay)titem_display(dpy);
if(d==NULL)
return(0.0);
height=DisplayHeight(d->dpy, d->screen);
millimeters=DisplayHeightMM(d->dpy, d->screen);
dpi=height/(millimeters/25.4); /* convert to inches */
return(dpi);
}
tdisplay_beep(dpy)
titem dpy;
{
ltdisplay d;
d=(ltdisplay)titem_display(dpy);
if(d==NULL)
return;
XBell(d->dpy, 100);
}
int tdisplay_height(dpy)
titem dpy;
{
ltdisplay d;
d=(ltdisplay)titem_display(dpy);
if(d==NULL)
return;
return(DisplayHeight(d->dpy, d->screen));
}
int tdisplay_width(dpy)
titem dpy;
{
ltdisplay d;
d=(ltdisplay)titem_display(dpy);
if(d==NULL)
return;
return(DisplayWidth(d->dpy, d->screen));
}
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