zeniba-nsxiv/window.c

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/* 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.
*/
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#include <stdlib.h>
#include <stdio.h>
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#include <string.h>
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#include <X11/Xutil.h>
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#include "sxiv.h"
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#include "options.h"
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#include "window.h"
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GC bgc;
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void win_open(win_t *win) {
win_env_t *e;
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XClassHint *classhint;
XColor bgcol;
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if (!win)
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return;
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e = &win->env;
if (!(e->dpy = XOpenDisplay(NULL)))
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DIE("could not open display");
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e->scr = DefaultScreen(e->dpy);
e->scrw = DisplayWidth(e->dpy, e->scr);
e->scrh = DisplayHeight(e->dpy, e->scr);
e->vis = DefaultVisual(e->dpy, e->scr);
e->cmap = DefaultColormap(e->dpy, e->scr);
e->depth = DefaultDepth(e->dpy, e->scr);
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if (!XAllocNamedColor(e->dpy, DefaultColormap(e->dpy, e->scr), BG_COLOR,
&bgcol, &bgcol))
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DIE("could not allocate color: %s", BG_COLOR);
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win->bgcol = bgcol.pixel;
win->pm = 0;
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win->w = MIN(options->winw, e->scrw);
win->h = MIN(options->winh, e->scrh);
win->x = (e->scrw - win->w) / 2;
win->y = (e->scrh - win->h) / 2;
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win->xwin = XCreateWindow(e->dpy, RootWindow(e->dpy, e->scr),
win->x, win->y, win->w, win->h, 0,
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e->depth, InputOutput, e->vis, 0, None);
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if (win->xwin == None)
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DIE("could not create window");
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XSelectInput(e->dpy, win->xwin,
StructureNotifyMask | KeyPressMask | ButtonPressMask);
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bgc = XCreateGC(e->dpy, win->xwin, 0, None);
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win_set_title(win, "sxiv");
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if ((classhint = XAllocClassHint())) {
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classhint->res_name = "sxiv";
classhint->res_class = "sxiv";
XSetClassHint(e->dpy, win->xwin, classhint);
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XFree(classhint);
}
XMapWindow(e->dpy, win->xwin);
XFlush(e->dpy);
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}
void win_close(win_t *win) {
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if (!win)
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return;
XDestroyWindow(win->env.dpy, win->xwin);
XCloseDisplay(win->env.dpy);
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}
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void win_set_title(win_t *win, const char *title) {
if (!win)
return;
if (!title)
title = "sxiv";
XStoreName(win->env.dpy, win->xwin, title);
XSetIconName(win->env.dpy, win->xwin, title);
}
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int win_configure(win_t *win, XConfigureEvent *c) {
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int changed;
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if (!win)
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return 0;
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changed = win->w != c->width || win->h != c->height;
win->x = c->x;
win->y = c->y;
win->w = c->width;
win->h = c->height;
win->bw = c->border_width;
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return changed;
}
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void win_toggle_fullscreen(win_t *win) {
XEvent ev;
XClientMessageEvent *cm;
if (!win)
return;
win->fullscreen ^= 1;
memset(&ev, 0, sizeof(ev));
ev.type = ClientMessage;
cm = &ev.xclient;
cm->window = win->xwin;
cm->message_type = XInternAtom(win->env.dpy, "_NET_WM_STATE", False);
cm->format = 32;
cm->data.l[0] = win->fullscreen;
cm->data.l[1] = XInternAtom(win->env.dpy, "_NET_WM_STATE_FULLSCREEN", False);
cm->data.l[2] = XInternAtom(win->env.dpy, "_NET_WM_STATE_ABOVE", False);
cm->data.l[3] = 0;
XSendEvent(win->env.dpy, DefaultRootWindow(win->env.dpy), False,
SubstructureNotifyMask, &ev);
}
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void win_clear(win_t *win) {
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win_env_t *e;
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XGCValues gcval;
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if (!win)
return;
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e = &win->env;
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if (win->pm)
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XFreePixmap(e->dpy, win->pm);
win->pm = XCreatePixmap(e->dpy, win->xwin, e->scrw, e->scrh, e->depth);
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gcval.foreground = win->fullscreen ? BlackPixel(e->dpy, e->scr) : win->bgcol;
XChangeGC(e->dpy, bgc, GCForeground, &gcval);
XFillRectangle(e->dpy, win->pm, bgc, 0, 0, e->scrw, e->scrh);
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}
void win_draw(win_t *win) {
if (!win)
return;
XSetWindowBackgroundPixmap(win->env.dpy, win->xwin, win->pm);
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XClearWindow(win->env.dpy, win->xwin);
}