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transmission/gtk/util.c

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005-2008 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 <stdarg.h>
#include <stdlib.h> /* free() */
#include <string.h> /* strcmp() */
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h> /* g_unlink() */
#ifdef HAVE_GIO
#include <gio/gio.h> /* g_file_trash() */
#endif
#include <libevent/evhttp.h>
#include <libtransmission/transmission.h> /* TR_RATIO_NA, TR_RATIO_INF */
#include "conf.h"
#include "tr-prefs.h"
#include "util.h"
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;
}
char*
tr_strlratio( char * buf, double ratio, size_t buflen )
{
if( (int)ratio == TR_RATIO_NA )
g_strlcpy( buf, _( "None" ), buflen );
else if( (int)ratio == TR_RATIO_INF )
g_strlcpy( buf, "\xE2\x88\x9E", buflen );
else if( ratio < 10.0 )
g_snprintf( buf, buflen, "%'.2f", ratio );
else if( ratio < 100.0 )
g_snprintf( buf, buflen, "%'.1f", ratio );
else
g_snprintf( buf, buflen, "%'.0f", ratio );
return buf;
}
#define KILOBYTE_FACTOR 1024.0
#define MEGABYTE_FACTOR (1024.0 * 1024.0)
#define GIGABYTE_FACTOR (1024.0 * 1024.0 * 1024.0)
char*
tr_strlsize( char * buf, guint64 size, size_t buflen )
{
if( !size )
g_strlcpy( buf, _( "None" ), buflen );
#if GLIB_CHECK_VERSION(2,16,0)
else{
char * tmp = g_format_size_for_display( size );
g_strlcpy( buf, tmp, buflen );
g_free( tmp );
}
#else
else if( size < (guint64)KILOBYTE_FACTOR )
g_snprintf( buf, buflen, ngettext("%'u byte", "%'u bytes", (guint)size), (guint)size );
else {
gdouble displayed_size;
if (size < (guint64)MEGABYTE_FACTOR) {
displayed_size = (gdouble) size / KILOBYTE_FACTOR;
g_snprintf( buf, buflen, _("%'.1f KB"), displayed_size );
} else if (size < (guint64)GIGABYTE_FACTOR) {
displayed_size = (gdouble) size / MEGABYTE_FACTOR;
g_snprintf( buf, buflen, _("%'.1f MB"), displayed_size );
} else {
displayed_size = (gdouble) size / GIGABYTE_FACTOR;
g_snprintf( buf, buflen, _("%'.1f GB"), displayed_size );
}
}
#endif
return buf;
}
char*
tr_strlspeed( char * buf, double kb_sec, size_t buflen )
{
const double speed = kb_sec;
if ( speed < 1000.0 ) /* 0.0 KB to 999.9 KB */
g_snprintf( buf, buflen, _( "%'.1f KB/s" ), speed );
else if( speed < 102400.0 ) /* 0.98 MB to 99.99 MB */
g_snprintf( buf, buflen, _( "%'.2f MB/s" ), (speed/1024) );
else if( speed < 1024000.0 ) /* 100.0 MB to 999.9 MB */
g_snprintf( buf, buflen, _( "%'.1f MB/s" ), (speed/1024) );
else /* insane speeds */
g_snprintf( buf, buflen, _( "%'.2f GB/s" ), (speed/1048576) );
return buf;
}
char*
tr_strltime( char * buf, int seconds, size_t buflen )
{
int hours;
int days;
if( seconds < 0 )
seconds = 0;
if( seconds < 60 )
{
g_snprintf( buf, buflen, ngettext( "%'d second", "%'d seconds", (int)seconds ), (int) seconds );
return buf;
}
if( seconds < ( 60 * 60 ) )
{
const int minutes = ( seconds + 30 ) / 60;
g_snprintf( buf, buflen, ngettext( "%'d minute", "%'d minutes", minutes ), minutes );
return buf;
}
hours = seconds / ( 60 * 60 );
if( seconds < ( 60 * 60 * 4 ) )
{
char h[64];
char m[64];
const int minutes = ( seconds - hours * 60 * 60 + 30 ) / 60;
g_snprintf( h, sizeof(h), ngettext( "%'d hour", "%'d hours", hours ), hours );
g_snprintf( m, sizeof(m), ngettext( "%'d minute", "%'d minutes", minutes ), minutes );
g_snprintf( buf, buflen, "%s, %s", h, m );
return buf;
}
if( hours < 24 )
{
g_snprintf( buf, buflen, ngettext( "%'d hour", "%'d hours", hours ), hours );
return buf;
}
days = seconds / ( 60 * 60 * 24 );
g_snprintf( buf, buflen, ngettext( "%'d day", "%'d days", days ), days );
return buf;
}
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_locale_to_utf8( buf, -1, NULL, NULL, NULL );
}
gboolean
mkdir_p( const char * path, mode_t mode )
{
#if GLIB_CHECK_VERSION( 2, 8, 0)
return !g_mkdir_with_parents( path, mode );
#else
return !tr_mkdirp( path, mode );
#endif
}
GSList *
dupstrlist( GSList * l )
{
GSList * ret = NULL;
for( ; l!=NULL; l=l->next )
ret = g_slist_prepend( ret, g_strdup( l->data ) );
return g_slist_reverse( ret );
}
char *
joinstrlist(GSList *list, char *sep)
{
GSList *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(GSList *list)
{
g_slist_foreach (list, (GFunc)g_free, NULL);
g_slist_free (list);
}
char *
decode_uri( const char * uri )
{
char * filename = evhttp_decode_uri( uri );
char * ret = g_strdup( filename );
free( filename );
return ret;
}
GSList *
checkfilenames( int argc, char **argv )
{
int i;
GSList * 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_slist_prepend( ret, filename );
else
g_free( filename );
}
g_free( pwd );
return g_slist_reverse( ret );
}
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 );
}
static void
onErrorResponse(GtkWidget * dialog, int resp UNUSED, gpointer glist)
{
GSList * list = glist;
if( list )
{
callbackfunc_t func = list->data;
gpointer user_data = list->next->data;
func( user_data );
g_slist_free( list );
}
gtk_widget_destroy( dialog );
}
static GtkWidget *
verrmsg_full( GtkWindow * wind, callbackfunc_t func, void * data,
const char * format, va_list ap )
{
GtkWidget *dialog;
char *msg;
GSList *funcdata = NULL;
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( func ) {
funcdata = g_slist_append( funcdata, (gpointer)func );
funcdata = g_slist_append( funcdata, data );
}
g_signal_connect(dialog, "response", G_CALLBACK(onErrorResponse), funcdata);
g_free(msg);
return dialog;
}
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;
}
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;
}
gpointer
tr_object_ref_sink( gpointer object )
{
#if GLIB_CHECK_VERSION(2,10,0)
g_object_ref_sink( object );
#else
g_object_ref( object );
gtk_object_sink( GTK_OBJECT( object ) );
#endif
return object;
}
void
tr_file_trash_or_unlink( const char * filename )
{
if( filename && *filename )
{
gboolean trashed = FALSE;
#ifdef HAVE_GIO
GError * err = NULL;
GFile * file = g_file_new_for_path( filename );
trashed = g_file_trash( file, NULL, &err );
g_object_unref( G_OBJECT( file ) );
#endif
if( !trashed )
g_unlink( filename );
}
}
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