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transmission/gtk/util.c

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005-2007 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "tr_prefs.h"
#include "tr_torrent.h"
#include "util.h"
#define BESTDECIMAL(d) (10.0 > (d) ? 2 : (100.0 > (d) ? 1 : 0))
static void
errcb(GtkWidget *wind, int resp, gpointer data);
gboolean
strbool(const char *str) {
switch(str[0]) {
case 'y':
case 'Y':
case '1':
case 'j':
case 'e':
return TRUE;
default:
if(0 == g_ascii_strcasecmp("on", str))
return TRUE;
break;
}
return FALSE;
}
static const char *sizestrs[] = {
N_("B"), N_("KiB"), N_("MiB"), N_("GiB"), N_("TiB"), N_("PiB"), N_("EiB"),
};
char *
readablesize(guint64 size) {
int ii;
double small = size;
for(ii = 0; ii + 1 < ALEN(sizestrs) && 1024.0 <= small / 1024.0; ii++)
small /= 1024.0;
if(1024.0 <= small) {
small /= 1024.0;
ii++;
}
return g_strdup_printf("%.*f %s", BESTDECIMAL(small), small,
gettext(sizestrs[ii]));
}
#define SECONDS(s) ((s) % 60)
#define MINUTES(s) ((s) / 60 % 60)
#define HOURS(s) ((s) / 60 / 60 % 24)
#define DAYS(s) ((s) / 60 / 60 / 24 % 7)
#define WEEKS(s) ((s) / 60 / 60 / 24 / 7)
char *
readabletime(int secs) {
if(60 > secs)
return g_strdup_printf(_("%i %s"),
SECONDS(secs), ngettext("second", "seconds", SECONDS(secs)));
else if(60 * 60 > secs)
return g_strdup_printf(_("%i %s %i %s"),
MINUTES(secs), ngettext("minute", "minutes", MINUTES(secs)),
SECONDS(secs), ngettext("second", "seconds", SECONDS(secs)));
else if(60 * 60 * 24 > secs)
return g_strdup_printf(_("%i %s %i %s"),
HOURS(secs), ngettext("hour", "hours", HOURS(secs)),
MINUTES(secs), ngettext("minute", "minutes", MINUTES(secs)));
else if(60 * 60 * 24 * 7 > secs)
return g_strdup_printf(_("%i %s %i %s"),
DAYS(secs), ngettext("day", "days", DAYS(secs)),
HOURS(secs), ngettext("hour", "hours", HOURS(secs)));
else
return g_strdup_printf(_("%i %s %i %s"),
WEEKS(secs), ngettext("week", "weeks", WEEKS(secs)),
DAYS(secs), ngettext("hour", "hours", DAYS(secs)));
}
char *
ratiostr(guint64 down, guint64 up) {
double ratio;
if(0 == up && 0 == down)
return g_strdup(_("N/A"));
if(0 == down)
/* this is a UTF-8 infinity symbol */
return g_strdup(_("\xE2\x88\x9E"));
ratio = (double)up / (double)down;
return g_strdup_printf("%.*f", BESTDECIMAL(ratio), ratio);
}
gboolean
mkdir_p(const char *name, mode_t mode) {
struct stat sb;
char *parent;
gboolean ret;
int oerrno;
if(0 != stat(name, &sb)) {
if(ENOENT != errno)
return FALSE;
parent = g_path_get_dirname(name);
ret = mkdir_p(parent, mode);
oerrno = errno;
g_free(parent);
errno = oerrno;
return (ret ? (0 == mkdir(name, mode)) : FALSE);
}
if(!S_ISDIR(sb.st_mode)) {
errno = ENOTDIR;
return FALSE;
}
return TRUE;
}
GList *
dupstrlist( GList * list )
{
GList * ii, * ret;
ret = NULL;
for( ii = g_list_first( list ); NULL != ii; ii = ii->next )
{
ret = g_list_append( ret, g_strdup( ii->data ) );
}
return ret;
}
char *
joinstrlist(GList *list, char *sep) {
GList *ii;
int len;
char *ret, *dest;
if(0 > (len = strlen(sep) * (g_list_length(list) - 1)))
return NULL;
for(ii = g_list_first(list); NULL != ii; ii = ii->next)
len += strlen(ii->data);
dest = ret = g_new(char, len + 1);
for(ii = g_list_first(list); NULL != ii; ii = ii->next) {
dest = g_stpcpy(dest, ii->data);
if(NULL != ii->next)
dest = g_stpcpy(dest, sep);
}
return ret;
}
void
freestrlist(GList *list) {
GList *ii;
if(NULL != list) {
for(ii = g_list_first(list); NULL != ii; ii = ii->next)
g_free(ii->data);
g_list_free(list);
}
}
char *
urldecode(const char *str, int len) {
int ii, jj;
char *ret;
char buf[3];
if(0 >= len)
len = strlen(str);
for(ii = jj = 0; ii < len; ii++, jj++)
if('%' == str[ii])
ii += 2;
ret = g_new(char, jj + 1);
buf[2] = '\0';
for(ii = jj = 0; ii < len; ii++, jj++) {
switch(str[ii]) {
case '%':
if(ii + 2 < len) {
buf[0] = str[ii+1];
buf[1] = str[ii+2];
ret[jj] = g_ascii_strtoull(buf, NULL, 16);
}
ii += 2;
break;
case '+':
ret[jj] = ' ';
default:
ret[jj] = str[ii];
}
}
ret[jj] = '\0';
return ret;
}
GList *
checkfilenames(int argc, char **argv) {
char *pwd = g_get_current_dir();
int ii, cd;
char *dirstr, *filestr;
GList *ret = NULL;
for(ii = 0; ii < argc; ii++) {
dirstr = g_path_get_dirname(argv[ii]);
if(!g_path_is_absolute(argv[ii])) {
filestr = g_build_filename(pwd, dirstr, NULL);
g_free(dirstr);
dirstr = filestr;
}
cd = chdir(dirstr);
g_free(dirstr);
if(0 > cd)
continue;
dirstr = g_get_current_dir();
filestr = g_path_get_basename(argv[ii]);
ret = g_list_append(ret, g_build_filename(dirstr, filestr, NULL));
g_free(dirstr);
g_free(filestr);
}
chdir(pwd);
g_free(pwd);
return ret;
}
guint
addactionflag(const char *action) {
if(NULL == action)
return TR_TORNEW_SAVE_COPY;
else if(0 == strcmp("copy", action))
return TR_TORNEW_SAVE_COPY;
else if(0 == strcmp("move", action))
return TR_TORNEW_SAVE_MOVE;
else
return 0;
}
const char *
addactionname( guint flag )
{
static char name[6];
snprintf( name, sizeof name, "%s",
( TR_TORNEW_SAVE_COPY & flag ? "copy" :
( TR_TORNEW_SAVE_MOVE & flag ? "move" :
"leave" ) ) );
return name;
}
const char *
getdownloaddir( void )
{
static char * wd = NULL;
const char * dir;
dir = tr_prefs_get( PREF_ID_DIR );
if( NULL == dir )
{
if( NULL == wd )
{
wd = g_new( char, MAX_PATH_LENGTH + 1 );
if( NULL == getcwd( wd, MAX_PATH_LENGTH + 1 ) )
{
snprintf( wd, MAX_PATH_LENGTH + 1, "." );
}
}
dir = wd;
}
return dir;
}
void
windowsizehack( GtkWidget * wind, GtkWidget * scroll, GtkWidget * view,
callbackfunc_t func, void * arg )
{
GtkRequisition req;
gint width, height;
GdkScreen * screen;
gtk_widget_realize( wind );
gtk_widget_size_request( view, &req );
height = req.height;
gtk_widget_size_request( scroll, &req );
height -= req.height;
gtk_widget_size_request( wind, &req );
height += req.height;
screen = gtk_widget_get_screen( wind );
width = MIN( req.width, gdk_screen_get_width( screen ) / 2 );
height = MIN( height, gdk_screen_get_height( screen ) / 5 * 4 );
if( height > req.width )
{
height = MIN( height, width * 8 / 5 );
}
else
{
height = MAX( height, width * 5 / 8 );
}
if( height > req.width )
{
height = MIN( height, width * 8 / 5 );
}
else
{
height = MAX( height, width * 5 / 8 );
}
if( NULL != func )
{
func( arg );
}
gtk_widget_show_now( wind );
gtk_window_resize( GTK_WINDOW( wind ), width, height );
gtk_window_set_focus( GTK_WINDOW( wind ), NULL );
}
struct action *
action_new( int id, int flags, const char * label, const char * stock )
{
struct action * act;
act = g_new0( struct action, 1 );
act->id = id;
act->flags = flags;
act->label = g_strdup( label );
act->stock = g_strdup( stock );
act->tool = NULL;
act->menu = NULL;
return act;
}
void
action_free( struct action * act )
{
g_free( act->label );
g_free( act->stock );
g_free( act );
}
GtkWidget *
action_maketool( struct action * act, const char * key,
GCallback func, gpointer data )
{
GtkToolItem * item;
item = gtk_tool_button_new_from_stock( act->stock );
if( NULL != act->label )
{
gtk_tool_button_set_label( GTK_TOOL_BUTTON( item ), act->label );
}
g_object_set_data( G_OBJECT( item ), key, act );
g_signal_connect( item, "clicked", func, data );
gtk_widget_show( GTK_WIDGET( item ) );
return GTK_WIDGET( item );
}
GtkWidget *
action_makemenu( struct action * act, const char * actkey,
GtkAccelGroup * accel, const char * path, guint keyval,
GCallback func, gpointer data )
{
GtkWidget * item, * label;
GdkModifierType mod;
GtkStockItem stock;
const char * name;
char * joined;
mod = GDK_CONTROL_MASK;
name = act->label;
if( NULL == act->stock )
{
item = gtk_menu_item_new_with_label( act->label );
}
else
{
item = gtk_image_menu_item_new_from_stock( act->stock, NULL );
if( NULL == act->label )
{
if( gtk_stock_lookup( act->stock, &stock ) )
{
name = stock.label;
if( 0 == keyval )
{
keyval = stock.keyval;
mod = stock.modifier;
}
}
}
else
{
label = gtk_bin_get_child( GTK_BIN( item ) );
gtk_label_set_text( GTK_LABEL( label ), act->label );
}
}
if( NULL != accel && 0 < keyval && NULL != name )
{
joined = g_strjoin( "/", path, name, NULL );
gtk_accel_map_add_entry( joined, keyval, mod );
gtk_widget_set_accel_path( item, joined, accel );
g_free( joined );
}
g_object_set_data( G_OBJECT( item ), actkey, act );
g_signal_connect( item, "activate", func, data );
gtk_widget_show( item );
return item;
}
void
errmsg( GtkWindow * wind, const char * format, ... )
{
GtkWidget * dialog;
va_list ap;
va_start( ap, format );
dialog = verrmsg_full( wind, NULL, NULL, format, ap );
va_end( ap );
if( NULL != wind && !GTK_WIDGET_MAPPED( GTK_WIDGET( wind ) ) )
{
g_signal_connect_swapped( wind, "map",
G_CALLBACK( gtk_widget_show ), dialog );
}
else
{
gtk_widget_show( dialog );
}
}
GtkWidget *
errmsg_full( GtkWindow * wind, callbackfunc_t func, void * data,
const char * format, ... )
{
GtkWidget * dialog;
va_list ap;
va_start( ap, format );
dialog = verrmsg_full( wind, func, data, format, ap );
va_end( ap );
return dialog;
}
GtkWidget *
verrmsg_full( GtkWindow * wind, callbackfunc_t func, void * data,
const char * format, va_list ap )
{
GtkWidget *dialog;
char *msg;
GList *funcdata;
msg = g_strdup_vprintf(format, ap);
if(NULL == wind)
dialog = gtk_message_dialog_new(
NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
else
dialog = gtk_message_dialog_new(wind,
GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
if(NULL == func)
funcdata = NULL;
else
funcdata = g_list_append(g_list_append(NULL, func), data);
g_signal_connect(dialog, "response", G_CALLBACK(errcb), funcdata);
g_free(msg);
return dialog;
}
static void
errcb(GtkWidget *widget, int resp SHUTUP, gpointer data) {
GList *funcdata;
callbackfunc_t func;
if(NULL != data) {
funcdata = g_list_first(data);
func = funcdata->data;
data = funcdata->next->data;
func(data);
g_list_free(funcdata);
}
gtk_widget_destroy(widget);
}
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