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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 "conf.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);
int
tr_strcmp( const char * a, const char * b )
{
if( a && b ) return strcmp( a, b );
if( a ) return 1;
if( b ) return -1;
return 0;
}
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;
if( !size )
return g_strdup_printf( _("None") );
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]));
}
char *
readablespeed (double KiBps)
{
const guint64 bps = KiBps * 1024;
char * str = readablesize (bps);
char * ret = bps ? g_strdup_printf ("%s/s", str) : g_strdup( str );
g_free (str);
return ret;
}
#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)
char *
readabletime(int secs) {
if(60 > secs)
return g_strdup_printf(_("%i %s"),
SECONDS(secs), ngettext("sec", "secs", SECONDS(secs)));
else if(60 * 60 > secs)
return g_strdup_printf(_("%i %s %i %s"),
MINUTES(secs), ngettext("min", "mins", MINUTES(secs)),
SECONDS(secs), ngettext("sec", "secs", SECONDS(secs)));
else if(60 * 60 * 24 > secs)
return g_strdup_printf(_("%i %s %i %s"),
HOURS(secs), ngettext("hr", "hrs", HOURS(secs)),
MINUTES(secs), ngettext("min", "mins", MINUTES(secs)));
else
return g_strdup_printf(_("%i %s %i %s"),
DAYS(secs), ngettext("day", "days", DAYS(secs)),
HOURS(secs), ngettext("hr", "hrs", HOURS(secs)));
}
char *
rfc822date (guint64 epoch_msec)
{
const time_t secs = epoch_msec / 1000;
const struct tm tm = *localtime (&secs);
char buf[128];
strftime (buf, sizeof(buf), "%a, %d %b %Y %T %Z", &tm);
return g_strdup (buf);
}
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)
{
#if GLIB_CHECK_VERSION(2,8,0)
return !g_mkdir_with_parents( name, mode );
#else
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;
#endif
}
GList *
dupstrlist( GList * l )
{
GList * ret = NULL;
for( ; l!=NULL; l=l->next )
ret = g_list_prepend( ret, g_strdup( l->data ) );
return g_list_reverse( ret );
}
char *
joinstrlist(GList *list, char *sep)
{
GList *l;
GString *gstr = g_string_new (NULL);
for (l=list; l!=NULL; l=l->next) {
g_string_append (gstr, (char*)l->data);
if (l->next != NULL)
g_string_append (gstr, (sep));
}
return g_string_free (gstr, FALSE);
}
void
freestrlist(GList *list)
{
g_list_foreach (list, (GFunc)g_free, NULL);
g_list_free (list);
}
char *
urldecode(const char *str, int len) {
int ii, jj;
char *ret;
if( len <= 0 )
len = strlen( str );
for(ii = jj = 0; ii < len; ii++, jj++)
if('%' == str[ii])
ii += 2;
ret = g_new(char, jj + 1);
for(ii = jj = 0; ii < len; ii++, jj++) {
switch(str[ii]) {
case '%':
if(ii + 2 < len) {
char buf[3] = { str[ii+1], str[ii+2], '\0' };
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 )
{
int i;
GList * ret = NULL;
char * pwd = g_get_current_dir( );
for( i=0; i<argc; ++i )
{
char * filename = g_path_is_absolute( argv[i] )
? g_strdup ( argv[i] )
: g_build_filename( pwd, argv[i], NULL );
if( g_file_test( filename, G_FILE_TEST_EXISTS ) )
ret = g_list_append( ret, filename );
else
g_free( filename );
}
g_free( pwd );
return ret;
}
enum tr_torrent_action
toraddaction( const char * action )
{
if( !action || !strcmp( "copy", action ) )
return TR_TOR_COPY;
if( !strcmp( "move", action ) )
return TR_TOR_MOVE;
return TR_TOR_LEAVE;
}
const char *
toractionname( enum tr_torrent_action action )
{
switch( action )
{
case TR_TOR_COPY:
return "copy";
case TR_TOR_MOVE:
return "move";
default:
return "leave";
}
}
char *
getdownloaddir( void )
{
static char * wd = NULL;
char * dir = pref_string_get( PREF_KEY_DIR_DEFAULT );
if ( dir == NULL ) {
if( wd == NULL )
wd = g_get_current_dir();
dir = g_strdup( wd );
}
return dir;
}
/**
* don't use more than 50% the height of the screen, nor 80% the width.
* but don't be too small, either -- set the minimums to 500 x 300
*/
void
sizingmagic( GtkWindow * wind,
GtkScrolledWindow * scroll,
GtkPolicyType hscroll,
GtkPolicyType vscroll )
{
int width;
int height;
GtkRequisition req;
GdkScreen * screen = gtk_widget_get_screen( GTK_WIDGET( wind ) );
gtk_scrolled_window_set_policy( scroll, GTK_POLICY_NEVER,
GTK_POLICY_NEVER );
gtk_widget_size_request( GTK_WIDGET( wind ), &req );
req.height = MAX( req.height, 300 );
height = MIN( req.height, gdk_screen_get_height( screen ) / 5 * 4 );
gtk_scrolled_window_set_policy( scroll, GTK_POLICY_NEVER, vscroll );
gtk_widget_size_request( GTK_WIDGET( wind ), &req );
req.width = MAX( req.width, 500 );
width = MIN( req.width, gdk_screen_get_width( screen ) / 2 );
gtk_window_set_default_size( wind, width, height );
gtk_scrolled_window_set_policy( scroll, hscroll, vscroll );
}
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, (void *) 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 = (callbackfunc_t) funcdata->data;
data = funcdata->next->data;
func(data);
g_list_free(funcdata);
}
gtk_widget_destroy(widget);
}
typedef void (PopupFunc)(GtkWidget*, GdkEventButton*);
/* pop up the context menu if a user right-clicks.
if the row they right-click on isn't selected, select it. */
gboolean
on_tree_view_button_pressed (GtkWidget * view,
GdkEventButton * event,
gpointer func)
{
GtkTreeView * tv = GTK_TREE_VIEW( view );
if (event->type == GDK_BUTTON_PRESS && event->button == 3)
{
GtkTreeSelection * selection = gtk_tree_view_get_selection(tv);
GtkTreePath *path;
if (gtk_tree_view_get_path_at_pos (tv,
(gint) event->x,
(gint) event->y,
&path, NULL, NULL, NULL))
{
if (!gtk_tree_selection_path_is_selected (selection, path))
{
gtk_tree_selection_unselect_all (selection);
gtk_tree_selection_select_path (selection, path);
}
gtk_tree_path_free(path);
}
((PopupFunc*)func)(view, event);
return TRUE;
}
return FALSE;
}
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