d3a70a285d
- Functions warn() and die() replaced by GNU-like error(3) function - Register cleanup() with atexit(3) - Functions called by cleanup() are marked with CLEANUP and are not allowed to call exit(3)
522 lines
13 KiB
C
522 lines
13 KiB
C
/* Copyright 2011-2013 Bert Muennich
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*
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* This file is part of sxiv.
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*
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* sxiv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* sxiv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with sxiv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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#include <X11/cursorfont.h>
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#include <X11/Xatom.h>
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#include "options.h"
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#include "util.h"
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#include "window.h"
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#include "icon/data.h"
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#define _WINDOW_CONFIG
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#include "config.h"
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enum {
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H_TEXT_PAD = 5,
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V_TEXT_PAD = 1
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};
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static Cursor carrow;
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static Cursor cnone;
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static Cursor chand;
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static Cursor cwatch;
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static GC gc;
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static struct {
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int ascent;
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int descent;
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XFontStruct *xfont;
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XFontSet set;
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} font;
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static int fontheight;
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static int barheight;
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Atom atoms[ATOM_COUNT];
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static Bool fs_support;
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static Bool fs_warned;
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void win_init_font(Display *dpy, const char *fontstr)
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{
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int n;
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char *def, **missing;
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font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
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if (missing)
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XFreeStringList(missing);
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if (font.set) {
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XFontStruct **xfonts;
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char **font_names;
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font.ascent = font.descent = 0;
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XExtentsOfFontSet(font.set);
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n = XFontsOfFontSet(font.set, &xfonts, &font_names);
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while (n--) {
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font.ascent = MAX(font.ascent, (*xfonts)->ascent);
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font.descent = MAX(font.descent,(*xfonts)->descent);
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xfonts++;
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}
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} else {
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if ((font.xfont = XLoadQueryFont(dpy, fontstr)) == NULL &&
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(font.xfont = XLoadQueryFont(dpy, "fixed")) == NULL)
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{
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error(EXIT_FAILURE, 0, "Error loading font '%s'", fontstr);
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}
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font.ascent = font.xfont->ascent;
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font.descent = font.xfont->descent;
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}
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fontheight = font.ascent + font.descent;
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barheight = fontheight + 2 * V_TEXT_PAD;
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}
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unsigned long win_alloc_color(win_t *win, const char *name)
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{
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XColor col;
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if (XAllocNamedColor(win->env.dpy,
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DefaultColormap(win->env.dpy, win->env.scr),
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name, &col, &col) == 0)
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{
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error(EXIT_FAILURE, 0, "Error allocating color '%s'", name);
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}
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return col.pixel;
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}
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void win_check_wm_support(Display *dpy, Window root)
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{
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int format;
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long offset = 0, length = 16;
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Atom *data, type;
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unsigned long i, nitems, bytes_left;
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Bool found = False;
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while (!found && length > 0) {
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if (XGetWindowProperty(dpy, root, atoms[ATOM__NET_SUPPORTED],
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offset, length, False, XA_ATOM, &type, &format,
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&nitems, &bytes_left, (unsigned char**) &data))
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{
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break;
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}
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if (type == XA_ATOM && format == 32) {
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for (i = 0; i < nitems; i++) {
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if (data[i] == atoms[ATOM__NET_WM_STATE_FULLSCREEN]) {
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found = True;
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fs_support = True;
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break;
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}
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}
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}
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XFree(data);
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offset += nitems;
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length = MIN(length, bytes_left / 4);
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}
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}
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#define INIT_ATOM_(atom) \
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atoms[ATOM_##atom] = XInternAtom(e->dpy, #atom, False);
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void win_init(win_t *win)
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{
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win_env_t *e;
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memset(win, 0, sizeof(win_t));
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e = &win->env;
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if ((e->dpy = XOpenDisplay(NULL)) == NULL)
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error(EXIT_FAILURE, 0, "Error opening X display");
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e->scr = DefaultScreen(e->dpy);
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e->scrw = DisplayWidth(e->dpy, e->scr);
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e->scrh = DisplayHeight(e->dpy, e->scr);
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e->vis = DefaultVisual(e->dpy, e->scr);
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e->cmap = DefaultColormap(e->dpy, e->scr);
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e->depth = DefaultDepth(e->dpy, e->scr);
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if (setlocale(LC_CTYPE, "") == NULL || XSupportsLocale() == 0)
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error(0, 0, "No locale support");
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win_init_font(e->dpy, BAR_FONT);
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win->bgcol = win_alloc_color(win, WIN_BG_COLOR);
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win->fscol = win_alloc_color(win, WIN_FS_COLOR);
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win->selcol = win_alloc_color(win, SEL_COLOR);
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win->bar.bgcol = win_alloc_color(win, BAR_BG_COLOR);
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win->bar.fgcol = win_alloc_color(win, BAR_FG_COLOR);
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win->bar.l.size = BAR_L_LEN;
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win->bar.r.size = BAR_R_LEN;
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win->bar.l.buf = emalloc(win->bar.l.size);
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win->bar.r.buf = emalloc(win->bar.r.size);
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win->bar.h = options->hide_bar ? 0 : barheight;
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INIT_ATOM_(WM_DELETE_WINDOW);
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INIT_ATOM_(_NET_WM_NAME);
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INIT_ATOM_(_NET_WM_ICON_NAME);
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INIT_ATOM_(_NET_WM_ICON);
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INIT_ATOM_(_NET_WM_STATE);
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INIT_ATOM_(_NET_WM_STATE_FULLSCREEN);
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INIT_ATOM_(_NET_SUPPORTED);
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win_check_wm_support(e->dpy, RootWindow(e->dpy, e->scr));
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}
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void win_open(win_t *win)
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{
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int c, i, j, n;
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win_env_t *e;
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XClassHint classhint;
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unsigned long *icon_data;
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XColor col;
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char none_data[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
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Pixmap none;
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int gmask;
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XSizeHints sizehints;
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Bool fullscreen = options->fullscreen && fs_support;
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e = &win->env;
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sizehints.flags = PWinGravity;
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sizehints.win_gravity = NorthWestGravity;
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/* determine window offsets, width & height */
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if (options->geometry == NULL)
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gmask = 0;
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else
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gmask = XParseGeometry(options->geometry, &win->x, &win->y,
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&win->w, &win->h);
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if ((gmask & WidthValue) != 0)
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sizehints.flags |= USSize;
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else
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win->w = WIN_WIDTH;
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if ((gmask & HeightValue) != 0)
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sizehints.flags |= USSize;
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else
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win->h = WIN_HEIGHT;
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if ((gmask & XValue) != 0) {
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if ((gmask & XNegative) != 0) {
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win->x += e->scrw - win->w;
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sizehints.win_gravity = NorthEastGravity;
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}
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sizehints.flags |= USPosition;
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} else {
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win->x = 0;
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}
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if ((gmask & YValue) != 0) {
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if ((gmask & YNegative) != 0) {
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win->y += e->scrh - win->h;
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sizehints.win_gravity = sizehints.win_gravity == NorthEastGravity
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? SouthEastGravity : SouthWestGravity;
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}
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sizehints.flags |= USPosition;
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} else {
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win->y = 0;
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}
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win->xwin = XCreateWindow(e->dpy, RootWindow(e->dpy, e->scr),
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win->x, win->y, win->w, win->h, 0,
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e->depth, InputOutput, e->vis, 0, NULL);
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if (win->xwin == None)
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error(EXIT_FAILURE, 0, "Error creating X window");
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XSelectInput(e->dpy, win->xwin,
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ButtonReleaseMask | ButtonPressMask | KeyPressMask |
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PointerMotionMask | StructureNotifyMask);
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carrow = XCreateFontCursor(e->dpy, XC_left_ptr);
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chand = XCreateFontCursor(e->dpy, XC_fleur);
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cwatch = XCreateFontCursor(e->dpy, XC_watch);
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if (XAllocNamedColor(e->dpy, DefaultColormap(e->dpy, e->scr), "black",
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&col, &col) == 0)
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{
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error(EXIT_FAILURE, 0, "Error allocating color 'black'");
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}
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none = XCreateBitmapFromData(e->dpy, win->xwin, none_data, 8, 8);
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cnone = XCreatePixmapCursor(e->dpy, none, none, &col, &col, 0, 0);
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gc = XCreateGC(e->dpy, win->xwin, 0, None);
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n = icons[ARRLEN(icons)-1].size;
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icon_data = emalloc((n * n + 2) * sizeof(*icon_data));
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for (i = 0; i < ARRLEN(icons); i++) {
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n = 0;
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icon_data[n++] = icons[i].size;
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icon_data[n++] = icons[i].size;
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for (j = 0; j < icons[i].cnt; j++) {
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for (c = icons[i].data[j] >> 4; c >= 0; c--)
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icon_data[n++] = icon_colors[icons[i].data[j] & 0x0F];
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}
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XChangeProperty(e->dpy, win->xwin,
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atoms[ATOM__NET_WM_ICON], XA_CARDINAL, 32,
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i == 0 ? PropModeReplace : PropModeAppend,
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(unsigned char *) icon_data, n);
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}
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free(icon_data);
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win_set_title(win, "sxiv");
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classhint.res_class = "Sxiv";
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classhint.res_name = options->res_name != NULL ? options->res_name : "sxiv";
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XSetClassHint(e->dpy, win->xwin, &classhint);
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XSetWMProtocols(e->dpy, win->xwin, &atoms[ATOM_WM_DELETE_WINDOW], 1);
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sizehints.width = win->w;
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sizehints.height = win->h;
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sizehints.x = win->x;
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sizehints.y = win->y;
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XSetWMNormalHints(win->env.dpy, win->xwin, &sizehints);
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win->h -= win->bar.h;
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win->buf.w = e->scrw;
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win->buf.h = e->scrh;
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win->buf.pm = XCreatePixmap(e->dpy, win->xwin,
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win->buf.w, win->buf.h, e->depth);
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XSetForeground(e->dpy, gc, fullscreen ? win->fscol : win->bgcol);
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XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
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XSetWindowBackgroundPixmap(e->dpy, win->xwin, win->buf.pm);
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XMapWindow(e->dpy, win->xwin);
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XFlush(e->dpy);
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if (fullscreen)
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win_toggle_fullscreen(win);
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}
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CLEANUP void win_close(win_t *win)
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{
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XFreeCursor(win->env.dpy, carrow);
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XFreeCursor(win->env.dpy, cnone);
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XFreeCursor(win->env.dpy, chand);
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XFreeCursor(win->env.dpy, cwatch);
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XFreeGC(win->env.dpy, gc);
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XDestroyWindow(win->env.dpy, win->xwin);
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XCloseDisplay(win->env.dpy);
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}
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bool win_configure(win_t *win, XConfigureEvent *c)
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{
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bool changed;
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changed = win->w != c->width || win->h + win->bar.h != c->height;
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win->x = c->x;
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win->y = c->y;
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win->w = c->width;
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win->h = c->height - win->bar.h;
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win->bw = c->border_width;
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return changed;
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}
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void win_toggle_fullscreen(win_t *win)
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{
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XEvent ev;
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XClientMessageEvent *cm;
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if (!fs_support) {
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if (!fs_warned) {
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error(0, 0, "No fullscreen support");
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fs_warned = True;
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}
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return;
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}
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win->fullscreen = !win->fullscreen;
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memset(&ev, 0, sizeof(ev));
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ev.type = ClientMessage;
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cm = &ev.xclient;
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cm->window = win->xwin;
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cm->message_type = atoms[ATOM__NET_WM_STATE];
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cm->format = 32;
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cm->data.l[0] = win->fullscreen;
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cm->data.l[1] = atoms[ATOM__NET_WM_STATE_FULLSCREEN];
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cm->data.l[2] = cm->data.l[3] = 0;
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XSendEvent(win->env.dpy, DefaultRootWindow(win->env.dpy), False,
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SubstructureNotifyMask | SubstructureRedirectMask, &ev);
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}
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void win_toggle_bar(win_t *win)
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{
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if (win->bar.h != 0) {
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win->h += win->bar.h;
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win->bar.h = 0;
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} else {
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win->bar.h = barheight;
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win->h -= win->bar.h;
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}
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}
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void win_clear(win_t *win)
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{
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win_env_t *e;
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e = &win->env;
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if (win->w > win->buf.w || win->h + win->bar.h > win->buf.h) {
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XFreePixmap(e->dpy, win->buf.pm);
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win->buf.w = MAX(win->buf.w, win->w);
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win->buf.h = MAX(win->buf.h, win->h + win->bar.h);
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win->buf.pm = XCreatePixmap(e->dpy, win->xwin,
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win->buf.w, win->buf.h, e->depth);
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}
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XSetForeground(e->dpy, gc, win->fullscreen ? win->fscol : win->bgcol);
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XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
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}
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void win_draw_bar(win_t *win)
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{
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int len, olen, x, y, w, tw;
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char rest[3];
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const char *dots = "...";
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win_env_t *e;
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win_bar_t *l, *r;
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if ((l = &win->bar.l)->buf == NULL || (r = &win->bar.r)->buf == NULL)
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return;
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e = &win->env;
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y = win->h + font.ascent + V_TEXT_PAD;
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w = win->w;
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XSetForeground(e->dpy, gc, win->bar.bgcol);
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XFillRectangle(e->dpy, win->buf.pm, gc, 0, win->h, win->w, win->bar.h);
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XSetForeground(e->dpy, gc, win->bar.fgcol);
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XSetBackground(e->dpy, gc, win->bar.bgcol);
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if ((len = strlen(r->buf)) > 0) {
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if ((tw = win_textwidth(r->buf, len, true)) > w)
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return;
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x = win->w - tw + H_TEXT_PAD;
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w -= tw;
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if (font.set)
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XmbDrawString(e->dpy, win->buf.pm, font.set, gc, x, y, r->buf, len);
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else
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XDrawString(e->dpy, win->buf.pm, gc, x, y, r->buf, len);
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}
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if ((len = strlen(l->buf)) > 0) {
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olen = len;
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while (len > 0 && (tw = win_textwidth(l->buf, len, true)) > w)
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len--;
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if (len > 0) {
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if (len != olen) {
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w = strlen(dots);
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if (len <= w)
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return;
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memcpy(rest, l->buf + len - w, w);
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memcpy(l->buf + len - w, dots, w);
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}
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x = H_TEXT_PAD;
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if (font.set)
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XmbDrawString(e->dpy, win->buf.pm, font.set, gc, x, y, l->buf, len);
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else
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XDrawString(e->dpy, win->buf.pm, gc, x, y, l->buf, len);
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if (len != olen)
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memcpy(l->buf + len - w, rest, w);
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}
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}
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}
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void win_draw(win_t *win)
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{
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if (win->bar.h > 0)
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win_draw_bar(win);
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XSetWindowBackgroundPixmap(win->env.dpy, win->xwin, win->buf.pm);
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XClearWindow(win->env.dpy, win->xwin);
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XFlush(win->env.dpy);
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}
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void win_draw_rect(win_t *win, int x, int y, int w, int h, bool fill, int lw,
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unsigned long col)
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{
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XGCValues gcval;
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gcval.line_width = lw;
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gcval.foreground = col;
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XChangeGC(win->env.dpy, gc, GCForeground | GCLineWidth, &gcval);
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if (fill)
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XFillRectangle(win->env.dpy, win->buf.pm, gc, x, y, w, h);
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else
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XDrawRectangle(win->env.dpy, win->buf.pm, gc, x, y, w, h);
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}
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int win_textwidth(const char *text, unsigned int len, bool with_padding)
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{
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XRectangle r;
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int padding = with_padding ? 2 * H_TEXT_PAD : 0;
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if (font.set) {
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XmbTextExtents(font.set, text, len, NULL, &r);
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return r.width + padding;
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} else {
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return XTextWidth(font.xfont, text, len) + padding;
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}
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}
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|
void win_set_title(win_t *win, const char *title)
|
|
{
|
|
if (title == NULL)
|
|
title = "sxiv";
|
|
|
|
XStoreName(win->env.dpy, win->xwin, title);
|
|
XSetIconName(win->env.dpy, win->xwin, title);
|
|
|
|
XChangeProperty(win->env.dpy, win->xwin, atoms[ATOM__NET_WM_NAME],
|
|
XInternAtom(win->env.dpy, "UTF8_STRING", False), 8,
|
|
PropModeReplace, (unsigned char *) title, strlen(title));
|
|
XChangeProperty(win->env.dpy, win->xwin, atoms[ATOM__NET_WM_ICON_NAME],
|
|
XInternAtom(win->env.dpy, "UTF8_STRING", False), 8,
|
|
PropModeReplace, (unsigned char *) title, strlen(title));
|
|
}
|
|
|
|
void win_set_cursor(win_t *win, cursor_t cursor)
|
|
{
|
|
switch (cursor) {
|
|
case CURSOR_NONE:
|
|
XDefineCursor(win->env.dpy, win->xwin, cnone);
|
|
break;
|
|
case CURSOR_HAND:
|
|
XDefineCursor(win->env.dpy, win->xwin, chand);
|
|
break;
|
|
case CURSOR_WATCH:
|
|
XDefineCursor(win->env.dpy, win->xwin, cwatch);
|
|
break;
|
|
case CURSOR_ARROW:
|
|
default:
|
|
XDefineCursor(win->env.dpy, win->xwin, carrow);
|
|
break;
|
|
}
|
|
|
|
XFlush(win->env.dpy);
|
|
}
|