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xlib.c
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xlib.c
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#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "chrono.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
Display *display;
char *display_name;
int winX = 200;
int winY = 200;
int winW = 180;
int winH = 20;
Window root_window;
Window window;
GC gc;
int text_item_size;
XTextItem text_item;
unsigned int borderless;
unsigned int sticky;
void xlibInit(void) {
if (use_x11) {
XSetErrorHandler(xlibErrorFunc);
XSetIOErrorHandler(xlibIOErrorFunc);
xlibWindowInit();
}
}
int xlibErrorFunc(Display *display, XErrorEvent *error) {
printf("Error code %d: ", error->error_code);
switch(error->error_code) {
case BadRequest: // 1
printf("bad request code\n");
break;
case BadValue: // 2
printf("int parameter out of range\n");
break;
case BadWindow: // 3
printf("parameter not a Window\n");
break;
case BadPixmap: // 4
printf("parameter not a Pixmap\n");
break;
case BadAtom: // 5
printf("parameter not an Atom\n");
break;
case BadCursor: // 6
printf("parameter not a Cursor\n");
break;
case BadFont: // 7
printf("parameter not a Font\n");
break;
case BadMatch: // 8
printf("parameter mismatch\n");
break;
case BadDrawable: // 9
printf("parameter not a Pixmap or Window\n");
break;
case BadAccess: // 10
printf("depending on context:\n");
break;
case BadAlloc: // 11
printf("insufficient resources\n");
break;
case BadColor: // 12
printf("no such colormap\n");
break;
case BadGC: // 13
printf("parameter not a GC\n");
break;
case BadIDChoice: // 14
printf("choice not in range or already used\n");
break;
case BadName: // 15
printf("font or color name doesn't exist\n");
break;
case BadLength: // 16
printf("request length incorrect\n");
break;
case BadImplementation: // 17
printf("server is defective / bad implementation\n");
break;
}
return 0;
}
int xlibIOErrorFunc(Display *dsp) {
return 0;
}
void xlibKeysCheck(void) {
if (XPending(display)) {
XEvent xev;
XNextEvent(display, &xev);
switch (xev.type) {
case KeyPress:
if (debug && use_x11)
printf("keycode: %u\n", xev.xkey.keycode);
if (xev.xkey.keycode == 40) { // 'D'
debug = !debug;
printf("debug: %u\n", debug);
}
else if (xev.xkey.keycode == 9 || xev.xkey.keycode == 24) // <escape> & 'q'
endmainloop = 1;
else if (xev.xkey.keycode == 27) // 'r'
TimeReset();
else if (xev.xkey.keycode == 33 || xev.xkey.keycode == 65) { // 'p' & <space>
paused = !paused;
gettimeofday(&tv0, NULL);
if (paused)
tv_paused_start = tv0;
else {
tv_paused_current = tv0;
timersub(&tv_paused_current, &tv_paused_start, &tv_diff);
timeradd(&tv_paused, &tv_diff, &tv_paused);
}
TimeUpdate();
xlibTimeStringUpdate();
}
else if (xev.xkey.keycode == 39) // 's'
seconds_only = !seconds_only;
break;
case ButtonPress:
if (xev.xbutton.button == 1) {
paused = !paused;
if (paused) {
gettimeofday(&tv0, NULL);
tv_paused_start = tv0;
}
else {
gettimeofday(&tv_paused_current, NULL);
timersub(&tv_paused_current, &tv_paused_start, &tv_diff);
timeradd(&tv_paused, &tv_diff, &tv_paused);
}
}
else if (xev.xbutton.button == 2)
endmainloop = 1;
else if (xev.xbutton.button == 3)
TimeReset();
break;
}
}
}
void xlibTimeStringUpdate(void) {
memset(text_item.chars, 0, text_item_size);
if (years)
sprintf(text_item.chars, "%dy", years);
if (months)
sprintf(text_item.chars, "%s%dm", text_item.chars, months);
if (days)
sprintf(text_item.chars, "%s%dd", text_item.chars, days);
if (seconds_only)
sprintf(text_item.chars, "%s%02d:%02d:%02d", text_item.chars,
tm0->tm_hour, tm0->tm_min, tm0->tm_sec);
else {
if (countdown)
sprintf(text_item.chars, "%s%02d:%02d:%02d.%03lu", text_item.chars,
tm0->tm_hour, tm0->tm_min, tm0->tm_sec, tv_countdown.tv_usec/1000);
else
sprintf(text_item.chars, "%s%02d:%02d:%02d.%03lu", text_item.chars,
tm0->tm_hour, tm0->tm_min, tm0->tm_sec, tv_current.tv_usec/1000);
}
text_item.nchars = strlen(text_item.chars);
XClearArea(display, window, 4, 4, winW-4, winH-4, True);
XDrawText(display, window, gc, 4, 15, &text_item, 1);
}
void xlibWindowInit(void) {
display = XOpenDisplay(display_name);
if (display == NULL) {
fprintf(stderr, "Cannot open a X display \"%s\"\n", display_name);
exit(1);
}
Screen *screen = XDefaultScreenOfDisplay(display);
int screen_num = XScreenNumberOfScreen(screen);
int screen_depth = XDefaultDepthOfScreen(screen);
root_window = XDefaultRootWindow(display);
XSetWindowAttributes wattr;
//wattr.background_pixel = BlackPixel(display, screen_num);
//wattr.background_pixel = 0xaaaa00;
wattr.background_pixel = 0x081018;
wattr.event_mask = KeyPressMask | ButtonPressMask;
wattr.cursor = None;
window = XCreateWindow(display, RootWindow(display, screen_num),
winX, winY, winW, winH, 2, screen_depth, InputOutput, DefaultVisual(display, screen_num),
CWBackPixel | CWCursor | CWEventMask, &wattr);
XSizeHints wmsize;
wmsize.flags = USPosition | USSize;
XSetWMNormalHints(display, window, &wmsize);
XWMHints wmhint;
wmhint.initial_state = NormalState;
wmhint.flags = StateHint;
XSetWMHints(display, window, &wmhint);
XTextProperty wname;
XTextProperty iname;
if (!window_title) {
window_title = (char *)malloc(strlen(PACKAGE_STRING)+1);
sprintf(window_title, "%s", PACKAGE_STRING);
}
char *icon_name = PACKAGE_NAME;
XStringListToTextProperty(&window_title, 1, &wname);
XSetWMName(display, window, &wname);
XStringListToTextProperty(&icon_name, 1, &iname);
XSetWMIconName(display, window, &iname);
XFontStruct *xfont;
xfont = XLoadQueryFont(display, "9x15");
if (xfont == NULL) {
fprintf(stderr, "chrono error: XLoadQueryFont(\"9x15\") cannot retrieve X11 font\n");
exit(1);
}
XGCValues gcv;
gcv.foreground = 0xa0a0a0;
gcv.background = 0x000000;
gcv.font = xfont->fid;
gc = XCreateGC(display, window, GCForeground | GCBackground, &gcv);
//text_item_size = strlen("10000 days 00:00:00.000")+1;
text_item_size = 32;
text_item.chars = (char *)malloc(text_item_size);
memset(text_item.chars, 0, text_item_size);
sprintf(text_item.chars, "00:00:00 ");
text_item.nchars = strlen(text_item.chars);
text_item.delta = 0;
text_item.font = xfont->fid;
XMapWindow(display, window);
if (borderless) {
Atom window_type = XInternAtom(display, "_NET_WM_WINDOW_TYPE", False);
long value = XInternAtom(display, "_NET_WM_WINDOW_TYPE_DOCK", False);
XChangeProperty(display, window, window_type,
XA_ATOM, 32, PropModeReplace, (unsigned char *)&value, 1);
}
if (sticky) {
Atom wmStateSticky = XInternAtom(display, "_NET_WM_STATE_STICKY", 1);
Atom wmNetWmState = XInternAtom(display, "_NET_WM_STATE", 1);
XClientMessageEvent xclient;
memset( &xclient, 0, sizeof (xclient) );
xclient.type = ClientMessage;
xclient.window = window;
xclient.message_type = wmNetWmState;
xclient.format = 32;
xclient.data.l[0] = _NET_WM_STATE_ADD;
xclient.data.l[1] = wmStateSticky;
xclient.data.l[3] = 0;
xclient.data.l[4] = 0;
XSendEvent( display, root_window, False,
SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient );
}
}