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00027 #include <stdlib.h>
00028 #include <string.h>
00029
00030 #include <vlc/vlc.h>
00031 #include <vlc/intf.h>
00032 #include <vlc/vout.h>
00033
00034 #ifdef HAVE_UNISTD_H
00035 # include <unistd.h>
00036 #endif
00037
00038
00039
00040
00041 struct intf_sys_t
00042 {
00043 vlc_object_t * p_vout;
00044 input_thread_t * p_input;
00045 vlc_bool_t b_got_gesture;
00046 vlc_bool_t b_button_pressed;
00047 int i_mouse_x, i_mouse_y;
00048 int i_last_x, i_last_y;
00049 unsigned int i_pattern;
00050 int i_num_gestures;
00051 int i_threshold;
00052 int i_button_mask;
00053 };
00054
00055
00056
00057
00058 #define UP 1
00059 #define DOWN 2
00060 #define LEFT 3
00061 #define RIGHT 4
00062 #define NONE 0
00063 #define GESTURE( a, b, c, d ) (a | ( b << 4 ) | ( c << 8 ) | ( d << 12 ))
00064
00065 int E_(Open) ( vlc_object_t * );
00066 void E_(Close) ( vlc_object_t * );
00067 static int InitThread ( intf_thread_t *p_intf );
00068 static int MouseEvent ( vlc_object_t *, char const *,
00069 vlc_value_t, vlc_value_t, void * );
00070
00071
00072 static void RunIntf ( intf_thread_t *p_intf );
00073
00074
00075
00076
00077 #define THRESHOLD_TEXT N_( "Motion threshold (10-100)" )
00078 #define THRESHOLD_LONGTEXT N_( \
00079 "Amount of movement required for a mouse" \
00080 " gesture to be recorded." )
00081
00082 #define BUTTON_TEXT N_( "Trigger button" )
00083 #define BUTTON_LONGTEXT N_( \
00084 "You can set the trigger button for mouse gestures here." )
00085
00086 static char *button_list[] = { "left", "middle", "right" };
00087 static char *button_list_text[] = { N_("Left"), N_("Middle"), N_("Right") };
00088
00089 vlc_module_begin();
00090 set_shortname( _("Gestures"));
00091 set_category( CAT_INTERFACE );
00092 set_subcategory( SUBCAT_INTERFACE_CONTROL );
00093 add_integer( "gestures-threshold", 30, NULL, THRESHOLD_TEXT, THRESHOLD_LONGTEXT, VLC_TRUE );
00094 add_string( "gestures-button", "right", NULL,
00095 BUTTON_TEXT, BUTTON_LONGTEXT, VLC_FALSE );
00096 change_string_list( button_list, button_list_text, 0 );
00097 set_description( _("Mouse gestures control interface") );
00098
00099 set_capability( "interface", 0 );
00100 set_callbacks( E_(Open), E_(Close) );
00101 vlc_module_end();
00102
00103
00104
00105
00106 int E_(Open) ( vlc_object_t *p_this )
00107 {
00108 intf_thread_t *p_intf = (intf_thread_t *)p_this;
00109
00110
00111 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
00112 if( p_intf->p_sys == NULL )
00113 {
00114 return( 1 );
00115 };
00116
00117 p_intf->pf_run = RunIntf;
00118
00119 return( 0 );
00120 }
00121
00122
00123
00124
00125 static int gesture( int i_pattern, int i_num )
00126 {
00127 return ( i_pattern >> ( i_num * 4 ) ) & 0xF;
00128 }
00129
00130
00131
00132
00133 void E_(Close) ( vlc_object_t *p_this )
00134 {
00135 intf_thread_t *p_intf = (intf_thread_t *)p_this;
00136
00137
00138 free( p_intf->p_sys );
00139 }
00140
00141
00142
00143
00144
00145 static void RunIntf( intf_thread_t *p_intf )
00146 {
00147 playlist_t * p_playlist = NULL;
00148 p_intf->p_sys->p_vout = NULL;
00149
00150 if( InitThread( p_intf ) < 0 )
00151 {
00152 msg_Err( p_intf, "can't initialize intf" );
00153 return;
00154 }
00155 msg_Dbg( p_intf, "intf initialized" );
00156
00157
00158 while( !p_intf->b_die )
00159 {
00160 vlc_mutex_lock( &p_intf->change_lock );
00161
00162
00163
00164
00165 if( p_intf->p_sys->b_got_gesture )
00166 {
00167
00168 switch( p_intf->p_sys->i_pattern )
00169 {
00170 case LEFT:
00171 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
00172 FIND_ANYWHERE );
00173 if( p_playlist == NULL )
00174 {
00175 break;
00176 }
00177
00178 playlist_Prev( p_playlist );
00179 vlc_object_release( p_playlist );
00180 break;
00181 case RIGHT:
00182 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
00183 FIND_ANYWHERE );
00184 if( p_playlist == NULL )
00185 {
00186 break;
00187 }
00188
00189 playlist_Next( p_playlist );
00190 vlc_object_release( p_playlist );
00191 break;
00192 case GESTURE(UP,RIGHT,NONE,NONE):
00193 if (p_intf->p_sys->p_vout )
00194 {
00195 ((vout_thread_t *)p_intf->p_sys->p_vout)->i_changes |=
00196 VOUT_FULLSCREEN_CHANGE;
00197 }
00198 break;
00199 case GESTURE(DOWN,RIGHT,NONE,NONE):
00200
00201 p_intf->p_vlc->b_die = VLC_TRUE;
00202 break;
00203 case GESTURE(DOWN,LEFT,UP,RIGHT):
00204 msg_Dbg(p_intf, "a square!" );
00205 break;
00206 default:
00207 break;
00208 }
00209 p_intf->p_sys->i_num_gestures = 0;
00210 p_intf->p_sys->i_pattern = 0;
00211 p_intf->p_sys->b_got_gesture = VLC_FALSE;
00212 }
00213
00214
00215 vlc_mutex_unlock( &p_intf->change_lock );
00216
00217
00218
00219
00220 if( p_intf->p_sys->p_vout && p_intf->p_sys->p_vout->b_die )
00221 {
00222 var_DelCallback( p_intf->p_sys->p_vout, "mouse-moved",
00223 MouseEvent, p_intf );
00224 var_DelCallback( p_intf->p_sys->p_vout, "mouse-button-down",
00225 MouseEvent, p_intf );
00226 vlc_object_release( p_intf->p_sys->p_vout );
00227 p_intf->p_sys->p_vout = NULL;
00228 }
00229
00230 if( p_intf->p_sys->p_vout == NULL )
00231 {
00232 p_intf->p_sys->p_vout = vlc_object_find( p_intf,
00233 VLC_OBJECT_VOUT, FIND_ANYWHERE );
00234 if( p_intf->p_sys->p_vout )
00235 {
00236 var_AddCallback( p_intf->p_sys->p_vout, "mouse-moved",
00237 MouseEvent, p_intf );
00238 var_AddCallback( p_intf->p_sys->p_vout, "mouse-button-down",
00239 MouseEvent, p_intf );
00240 }
00241 }
00242
00243
00244 msleep( INTF_IDLE_SLEEP );
00245 }
00246
00247 if( p_intf->p_sys->p_vout )
00248 {
00249 var_DelCallback( p_intf->p_sys->p_vout, "mouse-moved",
00250 MouseEvent, p_intf );
00251 var_DelCallback( p_intf->p_sys->p_vout, "mouse-button-down",
00252 MouseEvent, p_intf );
00253 vlc_object_release( p_intf->p_sys->p_vout );
00254 }
00255 }
00256
00257
00258
00259
00260 static int InitThread( intf_thread_t * p_intf )
00261 {
00262 char *psz_button;
00263
00264 if( !p_intf->b_die )
00265 {
00266 input_thread_t * p_input;
00267
00268 p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT, FIND_PARENT );
00269
00270 vlc_mutex_lock( &p_intf->change_lock );
00271
00272 p_intf->p_sys->p_input = p_input;
00273 p_intf->p_sys->b_got_gesture = VLC_FALSE;
00274 p_intf->p_sys->b_button_pressed = VLC_FALSE;
00275 p_intf->p_sys->i_threshold = config_GetInt( p_intf, "gestures-threshold" );
00276 psz_button = config_GetPsz( p_intf, "gestures-button" );
00277 if ( !strcmp( psz_button, "left" ) )
00278 {
00279 p_intf->p_sys->i_button_mask = 1;
00280 }
00281 else if ( !strcmp( psz_button, "middle" ) )
00282 {
00283 p_intf->p_sys->i_button_mask = 2;
00284 }
00285 else if ( !strcmp( psz_button, "right" ) )
00286 {
00287 p_intf->p_sys->i_button_mask = 4;
00288 }
00289
00290 p_intf->p_sys->i_pattern = 0;
00291 p_intf->p_sys->i_num_gestures = 0;
00292 vlc_mutex_unlock( &p_intf->change_lock );
00293
00294 return 0;
00295 }
00296 else
00297 {
00298 return -1;
00299 }
00300 }
00301
00302
00303
00304
00305 static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
00306 vlc_value_t oldval, vlc_value_t newval, void *p_data )
00307 {
00308 vlc_value_t val;
00309 int pattern = 0;
00310
00311 signed int i_horizontal, i_vertical;
00312 intf_thread_t *p_intf = (intf_thread_t *)p_data;
00313
00314
00315 if( p_intf->p_sys->b_got_gesture ) {
00316 return VLC_SUCCESS;
00317 }
00318
00319 vlc_mutex_lock( &p_intf->change_lock );
00320 if( !strcmp(psz_var, "mouse-moved" ) && p_intf->p_sys->b_button_pressed ) {
00321 var_Get( p_intf->p_sys->p_vout, "mouse-x", &val );
00322 p_intf->p_sys->i_mouse_x = val.i_int;
00323 var_Get( p_intf->p_sys->p_vout, "mouse-y", &val );
00324 p_intf->p_sys->i_mouse_y = val.i_int;
00325 i_horizontal = p_intf->p_sys->i_mouse_x -
00326 p_intf->p_sys->i_last_x;
00327 i_horizontal = i_horizontal / p_intf->p_sys->i_threshold;
00328 i_vertical = p_intf->p_sys->i_mouse_y
00329 - p_intf->p_sys->i_last_y;
00330 i_vertical = i_vertical / p_intf->p_sys->i_threshold;
00331
00332 if ( i_horizontal < 0 )
00333 {
00334 msg_Dbg( p_intf, "left gesture(%d)", i_horizontal );
00335 pattern = LEFT;
00336 }
00337 else if ( i_horizontal > 0 )
00338 {
00339 msg_Dbg( p_intf, "right gesture(%d)", i_horizontal );
00340 pattern = RIGHT;
00341 }
00342 if ( i_vertical < 0 )
00343 {
00344 msg_Dbg( p_intf, "up gesture(%d)", i_vertical );
00345 pattern = UP;
00346 }
00347 else if ( i_vertical > 0 )
00348 {
00349 msg_Dbg( p_intf, "down gesture(%d)", i_vertical );
00350 pattern = DOWN;
00351 }
00352 if (pattern )
00353 {
00354 p_intf->p_sys->i_last_y = p_intf->p_sys->i_mouse_y;
00355 p_intf->p_sys->i_last_x = p_intf->p_sys->i_mouse_x;
00356 if( gesture(p_intf->p_sys->i_pattern, p_intf->p_sys->i_num_gestures - 1 ) != pattern )
00357 {
00358 p_intf->p_sys->i_pattern |= pattern << ( p_intf->p_sys->i_num_gestures * 4 );
00359 p_intf->p_sys->i_num_gestures++;
00360 }
00361 }
00362
00363 }
00364 if( !strcmp( psz_var, "mouse-button-down" ) && newval.i_int & p_intf->p_sys->i_button_mask
00365 && !p_intf->p_sys->b_button_pressed )
00366 {
00367 p_intf->p_sys->b_button_pressed = VLC_TRUE;
00368 var_Get( p_intf->p_sys->p_vout, "mouse-x", &val );
00369 p_intf->p_sys->i_last_x = val.i_int;
00370 var_Get( p_intf->p_sys->p_vout, "mouse-y", &val );
00371 p_intf->p_sys->i_last_y = val.i_int;
00372 }
00373 if( !strcmp( psz_var, "mouse-button-down" ) && !( newval.i_int & p_intf->p_sys->i_button_mask )
00374 && p_intf->p_sys->b_button_pressed )
00375 {
00376 p_intf->p_sys->b_button_pressed = VLC_FALSE;
00377 p_intf->p_sys->b_got_gesture = VLC_TRUE;
00378 }
00379
00380 vlc_mutex_unlock( &p_intf->change_lock );
00381
00382 return VLC_SUCCESS;
00383 }