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gtkballs/src/theme.c
wdlkmpx 373a362b01 theme.c/h: consistent indentation
2021-01-14 23:39:30 +08:00

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/* theme.c - functions related to theme handling
*
* This program is free software; you can redistribute it and/or
* modif (y 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.
*/
#include <gtk/gtk.h>
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include "theme.h"
#include "themerc.h"
#include "game.h"
#include "gtkutils.h" /* ut_simple_message... */
#include "prefs.h"
GtkbTheme *gtkbTheme=NULL;
/* some file/dir names */
gchar *INSTALLPATH=DATADIR "/gtkballs/themes/";
gchar *THEMEPREFIX="/.gtkballs/themes/";
#define DELTA(d, h) \
d = h < 0 ? (d > -h ? d + h : 0) : (d + h < 255 ? d + h : 255)
void hilight_pixbuff8(GdkPixbuf *pb, gint dr, gint dg, gint db)
{
/* pb created with 8b/rgb without alpha */
gint i;
gint nc = gdk_pixbuf_get_n_channels(pb);
gint delta = nc - 3;
gint w = gdk_pixbuf_get_width(pb);
gint l = w * gdk_pixbuf_get_height(pb);
gint d = gdk_pixbuf_get_rowstride(pb) - w * nc;
guchar *data = gdk_pixbuf_get_pixels(pb);
for (i = 0; i < l; i++) {
if (i && (i%w == 0)) {
data += d;
}
DELTA(*data, dr);
data++;
DELTA(*data, dg);
data++;
DELTA(*data, db);
data += delta + 1;
}
}
gchar *find_theme_path(gchar *themename)
{
gchar *homedir;
gchar *themepath;
struct stat buf;
if ((homedir = getenv("HOME")) &&
(themepath = g_strconcat(homedir, THEMEPREFIX, themename, G_DIR_SEPARATOR_S, NULL))) {
if (!stat(themepath, &buf) && S_ISDIR(buf.st_mode)) {
return themepath;
}
g_free (themepath);
}
if ((themepath = g_strconcat(INSTALLPATH, themename, G_DIR_SEPARATOR_S, NULL))) {
if (!stat(themepath, &buf) && S_ISDIR(buf.st_mode)) {
return themepath;
}
g_free (themepath);
}
return NULL;
}
gint gtkb_load_pixmap(GtkbPixmap *pixmap, gchar *path, gchar *pixmapname)
{
gchar *fname;
GError *error = NULL;
gint rv = 1;
if (!(fname = g_strconcat(path, pixmapname, NULL))) {
return 0;
}
if (pixmap->pixbuf) {
g_object_unref(pixmap->pixbuf);
}
pixmap->pixbuf = gdk_pixbuf_new_from_file(fname, &error);
if (!pixmap->pixbuf) {
ut_simple_message_box(error->message);
g_error_free (error);
rv = 0;
} else {
pixmap->xsize = gdk_pixbuf_get_width (pixmap->pixbuf);
pixmap->ysize = gdk_pixbuf_get_height (pixmap->pixbuf);
}
g_free (fname);
return rv;
}
void gtkb_pixmap_free(GtkbPixmap pixmap) {
if (pixmap.pixbuf) {
g_object_unref(pixmap.pixbuf);
}
}
void gtkb_theme_free(GtkbTheme *theme)
{
gint i, j;
if (!theme) {
return;
}
gtkb_pixmap_free(theme->emptycell);
gtkb_pixmap_free(theme->hemptycell);
for (i = 0; i < 8; i++) {
gtkb_pixmap_free(theme->paws[i]);
}
if (theme->balls) {
for (i = 0; i < theme->numballs; i++) {
gtkb_pixmap_free(theme->balls[i].ball);
gtkb_pixmap_free(theme->balls[i].small);
if (theme->balls[i].jump) {
for (j = 0; j < theme->balls[i].jumpphases; j++) {
gtkb_pixmap_free(theme->balls[i].jump[j]);
}
g_free (theme->balls[i].jump);
if (theme->balls[i].jumpdelays) {
g_free (theme->balls[i].jumpdelays);
}
}
if (theme->balls[i].destroy) {
for (j = 0; j < theme->balls[i].destroyphases; j++) {
gtkb_pixmap_free(theme->balls[i].destroy[j]);
}
g_free (theme->balls[i].destroy);
if (theme->balls[i].destroydelays) {
g_free (theme->balls[i].destroydelays);
}
}
}
}
g_free (theme->balls);
g_free (theme);
}
/* warning! tmpname will be free()'d! */
gint gtkb_load_pixmap_from(gchar **trc, gchar *themepath, gchar *tmpname, GtkbPixmap *pixmap)
{
gchar *val;
gint ret;
val = trc_get_str(trc, tmpname);
g_free (tmpname);
if (val == NULL) {
return 0;
}
ret = gtkb_load_pixmap(pixmap, themepath, val);
g_free (val);
return ret;
}
#define CHECKRET(ret, cond) \
if (ret == cond) { \
gtkb_theme_free(theme); \
trc_close(trc); \
return NULL; \
}
void gtkb_make_hl_pixmap(GtkbTheme *theme) {
if (theme->hemptycell.pixbuf) {
gtkb_pixmap_free(theme->hemptycell);
}
theme->hemptycell.pixbuf = gdk_pixbuf_copy(theme->emptycell.pixbuf);
theme->hemptycell.xsize = theme->emptycell.xsize;
theme->hemptycell.ysize = theme->emptycell.ysize;
hilight_pixbuff8(theme->hemptycell.pixbuf, prefs_get_hl_dr(), prefs_get_hl_dg(), prefs_get_hl_db());
}
GtkbTheme *gtkb_load_theme(gchar *themepath)
{
gchar **trc, *opt;
gchar *paws[] = {"down_up", "left_right", "up_down", "right_left",
"down_right", "down_left", "up_right", "up_left", NULL};
gint i, j, ret;
GtkbTheme *theme;
opt = g_strconcat(themepath, "themerc", NULL);
trc = trc_open(opt); /* open theme description file */
g_free (opt);
if (!trc) {
return NULL;
}
theme = g_new0(GtkbTheme, 1);
/* find and load "empty cell" pixmap. */
opt = trc_get_str(trc, "cell");
CHECKRET(opt, NULL);
ret = gtkb_load_pixmap(&theme->emptycell, themepath, opt);
g_free (opt);
CHECKRET(ret, 0);
/*
theme->hemptycell.pixbuf = gdk_pixbuf_copy(theme->emptycell.pixbuf);
theme->hemptycell.xsize = theme->emptycell.xsize;
theme->hemptycell.ysize = theme->emptycell.ysize;
CHECKRET(theme->hemptycell.pixbuf, NULL);
hilight_pixbuff8(theme->hemptycell.pixbuf, prefs_get_hl_dr(), prefs_get_hl_dg(), prefs_get_hl_db());
*/
gtkb_make_hl_pixmap(theme);
/* find and load "footprints" pixmaps. */
for (i = 0; paws[i]; i++) {
CHECKRET(gtkb_load_pixmap_from(trc, themepath, g_strconcat("paw.", paws[i], NULL),
&theme->paws[i]), 0);
}
/* query number of available balls in theme */
theme->numballs = trc_get_uint(trc, "ball.numbers");
CHECKRET(theme->numballs, -1);
if (theme->numballs < rules_get_colors()) {
CHECKRET(0, 0); /* yes, i know. its ugly =) */
}
theme->balls = g_new0(GtkbBall, theme->numballs);
/* find and load all balls data. */
for (i = 0; i < theme->numballs; i++) {
CHECKRET(gtkb_load_pixmap_from(trc, themepath, g_strdup_printf("ball.%d.still", i + 1),
&theme->balls[i].ball), 0);
CHECKRET(gtkb_load_pixmap_from(trc, themepath, g_strdup_printf("ball.%d.small", i + 1),
&theme->balls[i].small), 0);
opt = g_strdup_printf("ball.%d.jump.numbers", i + 1);
theme->balls[i].jumpphases = trc_get_uint(trc, opt);
g_free (opt);
CHECKRET(theme->balls[i].jumpphases, -1);
if (theme->balls[i].jumpphases < 2) {
CHECKRET(0, 0); /* yes, i know. its ugly =) */
}
theme->balls[i].jump = g_new0(GtkbPixmap, theme->balls[i].jumpphases);
theme->balls[i].jumpdelays = g_new0(gint, theme->balls[i].jumpphases);
for (j = 0; j < theme->balls[i].jumpphases; j++) {
CHECKRET(gtkb_load_pixmap_from(trc, themepath,
g_strdup_printf("ball.%d.jump.%d", i + 1, j + 1),
&theme->balls[i].jump[j]), 0);
opt = g_strdup_printf("ball.%d.jump.%d.usec", i + 1, j + 1);
theme->balls[i].jumpdelays[j] = trc_get_uint(trc, opt);
g_free (opt);
CHECKRET(theme->balls[i].jumpdelays[j], -1);
}
opt = g_strdup_printf("ball.%d.destroy.numbers", i + 1);
theme->balls[i].destroyphases = trc_get_uint(trc, opt);
g_free (opt);
CHECKRET(theme->balls[i].destroyphases, -1);
if (theme->balls[i].destroyphases < 2) {
CHECKRET(0, 0); /* yes, i know. its ugly =) */
}
if (theme->balls[i].destroyphases > theme->maxdestphases) {
theme->maxdestphases = theme->balls[i].destroyphases;
}
theme->balls[i].destroy = g_new0(GtkbPixmap, theme->balls[i].destroyphases);
theme->balls[i].destroydelays = g_new0(gint, theme->balls[i].destroyphases);
for (j = 0; j < theme->balls[i].destroyphases; j++) {
CHECKRET(gtkb_load_pixmap_from(trc, themepath,
g_strdup_printf("ball.%d.destroy.%d", i + 1, j + 1),
&theme->balls[i].destroy[j]), 0);
opt = g_strdup_printf("ball.%d.destroy.%d.usec", i + 1, j + 1);
theme->balls[i].destroydelays[j] = trc_get_uint(trc, opt);
g_free (opt);
CHECKRET(theme->balls[i].destroydelays[j], -1);
}
}
trc_close(trc);
return theme;
}
gint load_theme(gchar *themename)
{
gchar *themepath;
GtkbTheme *theme;
if (!(themepath = find_theme_path(themename))) {
return 0;
}
theme = gtkb_load_theme(themepath);
g_free (themepath);
if (!theme) {
return 0;
}
gtkb_theme_free(gtkbTheme);
gtkbTheme = theme;
return 1;
}
gint gtkb_theme_free_handler(GtkWidget *widget, gpointer data)
{
gtkb_theme_free(gtkbTheme);
gtkbTheme = NULL;
return 0;
}
gint gtkb_theme_get_balls_num(void)
{
return gtkbTheme ? gtkbTheme->numballs : 0;
}
/* returns board coordinate of the pointer */
gint gtkb_theme_get_coord_at_x(gint x)
{
if (gtkbTheme) {
return (x - 1) / gtkbTheme->emptycell.xsize;
}
return -1;
}
gint gtkb_theme_get_coord_at_y(gint y)
{
if (gtkbTheme) {
return (y - 1) / gtkbTheme->emptycell.ysize;
}
return -1;
}
gint theme_get_width(void) {
return gtkbTheme->emptycell.xsize;
}
gint theme_get_height(void) {
return gtkbTheme->emptycell.xsize;
}
/* find all available themes. */
gchar **get_available_themes(void)
{
DIR *directory;
struct dirent *dir_entry;
struct stat entry_stat;
gchar *entry, *currdir, *hdir, *rcentry;
gint i, j, num, flag;
gchar **tlist = NULL;
if (getenv("HOME")) {
hdir = g_strconcat(getenv("HOME"), THEMEPREFIX, NULL);
} else {
hdir = g_strdup("./"); /* FIXME: does it work on non unix os? */
}
for (j = 0, currdir = INSTALLPATH, num = 0; j < 2; j++, currdir = hdir)
{
if (!(directory = opendir(currdir))) {
continue;
}
while((dir_entry = readdir(directory)))
{
if (!strncmp(dir_entry->d_name, ".", 2) ||
!strncmp(dir_entry->d_name, "..", 3)) {
continue;
}
entry = g_strconcat(currdir, dir_entry->d_name, NULL);
if (!stat(entry, &entry_stat) && S_ISDIR(entry_stat.st_mode)) {
rcentry = g_strconcat(entry, G_DIR_SEPARATOR_S, "themerc", NULL);
if (!stat(rcentry, &entry_stat)) {
flag = 0;
for (i=0; i < num && !flag; i++) {
if (!strcmp(tlist[i], dir_entry->d_name)) {
flag++;
}
}
if (!flag) {
num++;
tlist = g_realloc(tlist, num * sizeof(gchar *));
tlist[num-1] = g_strdup(dir_entry->d_name);
}
}
g_free (rcentry);
}
g_free (entry);
}
closedir(directory);
}
g_free (hdir);
tlist = g_realloc(tlist, (num + 1) * sizeof(gchar *));
tlist[num] = NULL;
return tlist;
}
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