nsxiv/window.c
2011-01-17 19:53:48 +01:00

110 lines
2.7 KiB
C

/* sxiv: window.c
* Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <X11/Xutil.h>
#include "sxiv.h"
#include "window.h"
Display *dpy;
int scr;
int scrw, scrh;
GC gc;
XColor bgcol;
void win_open(win_t *win) {
XClassHint *classhint;
XSetWindowAttributes attr;
unsigned long mask;
if (win == NULL)
return;
if (!(dpy = XOpenDisplay(NULL)))
FATAL("could not open display");
scr = DefaultScreen(dpy);
scrw = DisplayWidth(dpy, scr);
scrh = DisplayHeight(dpy, scr);
if (!XAllocNamedColor(dpy, DefaultColormap(dpy, scr), BG_COLOR,
&bgcol, &bgcol))
FATAL("could not allocate color: %s", BG_COLOR);
if (win->w > scrw)
win->w = scrw;
if (win->h > scrh)
win->h = scrh;
win->x = (scrw - win->w) / 2;
win->y = (scrh - win->h) / 2;
attr.backing_store = NotUseful;
attr.background_pixel = bgcol.pixel;
attr.save_under = False;
mask = CWBackingStore | CWBackPixel | CWSaveUnder;
win->xwin = XCreateWindow(dpy, RootWindow(dpy, scr),
win->x, win->y, win->w, win->h, 0, DefaultDepth(dpy, scr), InputOutput,
DefaultVisual(dpy, scr), mask, &attr);
if (win->xwin == None)
FATAL("could not create window");
XSelectInput(dpy, win->xwin,
StructureNotifyMask | ExposureMask | KeyPressMask);
gc = XCreateGC(dpy, win->xwin, 0, NULL);
if ((classhint = XAllocClassHint())) {
classhint->res_name = "sxvi";
classhint->res_class = "sxvi";
XSetClassHint(dpy, win->xwin, classhint);
XFree(classhint);
}
XMapWindow(dpy, win->xwin);
XFlush(dpy);
}
void win_close(win_t *win) {
if (win == NULL)
return;
XDestroyWindow(dpy, win->xwin);
XFreeGC(dpy, gc);
XCloseDisplay(dpy);
}
int win_configure(win_t *win, XConfigureEvent *cev) {
int changed;
if (win == NULL)
return 0;
changed = win->x != cev->x || win->y != cev->y ||
win->w != cev->width || win->h != cev->height;
win->x = cev->x;
win->y = cev->y;
win->w = cev->width;
win->h = cev->height;
win->bw = cev->border_width;
return changed;
}