nsxiv/window.c

219 lines
5.1 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 <string.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include "sxiv.h"
#include "window.h"
static Cursor arrow;
static Cursor hand;
static GC bgc;
void win_open(win_t *win) {
win_env_t *e;
XClassHint *classhint;
XColor bgcol;
int gmask;
if (!win)
return;
e = &win->env;
if (!(e->dpy = XOpenDisplay(NULL)))
DIE("could not open display");
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);
if (!XAllocNamedColor(e->dpy, DefaultColormap(e->dpy, e->scr), BG_COLOR,
&bgcol, &bgcol))
DIE("could not allocate color: %s", BG_COLOR);
win->bgcol = bgcol.pixel;
win->pm = 0;
win->fullscreen = 0;
/* determine window offsets, width & height */
if (!options->geometry)
gmask = 0;
else
gmask = XParseGeometry(options->geometry, &win->x, &win->y,
&win->w, &win->h);
if (!(gmask & WidthValue))
win->w = WIN_WIDTH;
if (win->w > e->scrw)
win->w = e->scrw;
if (!(gmask & HeightValue))
win->h = WIN_HEIGHT;
if (win->h > e->scrh)
win->h = e->scrh;
if (!(gmask & XValue))
win->x = (e->scrw - win->w) / 2;
if (!(gmask & YValue))
win->y = (e->scrh - win->h) / 2;
win->xwin = XCreateWindow(e->dpy, RootWindow(e->dpy, e->scr),
win->x, win->y, win->w, win->h, 0,
e->depth, InputOutput, e->vis, 0, None);
if (win->xwin == None)
DIE("could not create window");
XSelectInput(e->dpy, win->xwin, StructureNotifyMask | KeyPressMask |
ButtonPressMask | ButtonReleaseMask | Button2MotionMask);
arrow = XCreateFontCursor(e->dpy, XC_left_ptr);
hand = XCreateFontCursor(e->dpy, XC_fleur);
bgc = XCreateGC(e->dpy, win->xwin, 0, None);
win_set_title(win, "sxiv");
if ((classhint = XAllocClassHint())) {
classhint->res_name = "sxiv";
classhint->res_class = "sxiv";
XSetClassHint(e->dpy, win->xwin, classhint);
XFree(classhint);
}
XMapWindow(e->dpy, win->xwin);
XFlush(e->dpy);
if (options->fullscreen)
win_toggle_fullscreen(win);
}
void win_close(win_t *win) {
if (!win)
return;
XFreeCursor(win->env.dpy, arrow);
XFreeCursor(win->env.dpy, hand);
XFreeGC(win->env.dpy, bgc);
XDestroyWindow(win->env.dpy, win->xwin);
XCloseDisplay(win->env.dpy);
}
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);
}
int win_configure(win_t *win, XConfigureEvent *c) {
int changed;
if (!win)
return 0;
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;
return changed;
}
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);
}
void win_clear(win_t *win) {
win_env_t *e;
XGCValues gcval;
if (!win)
return;
e = &win->env;
if (win->pm)
XFreePixmap(e->dpy, win->pm);
win->pm = XCreatePixmap(e->dpy, win->xwin, e->scrw, e->scrh, e->depth);
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);
}
void win_draw(win_t *win) {
if (!win)
return;
XSetWindowBackgroundPixmap(win->env.dpy, win->xwin, win->pm);
XClearWindow(win->env.dpy, win->xwin);
}
void win_set_cursor(win_t *win, win_cur_t cursor) {
if (!win)
return;
switch (cursor) {
case CURSOR_HAND:
XDefineCursor(win->env.dpy, win->xwin, hand);
break;
case CURSOR_ARROW:
default:
XDefineCursor(win->env.dpy, win->xwin, arrow);
break;
}
}