diff options
| -rw-r--r-- | src/uca-camera.c | 103 | ||||
| -rw-r--r-- | src/uca-camera.h | 4 |
2 files changed, 107 insertions, 0 deletions
diff --git a/src/uca-camera.c b/src/uca-camera.c index 1cc414a..a9be591 100644 --- a/src/uca-camera.c +++ b/src/uca-camera.c @@ -136,6 +136,27 @@ const gchar *uca_camera_props[N_BASE_PROPERTIES] = { static GParamSpec *camera_properties[N_BASE_PROPERTIES] = { NULL, }; static GStaticMutex access_lock = G_STATIC_MUTEX_INIT; +static gboolean str_to_boolean (const gchar *s); + +#define DEFINE_CAST(suffix, trans_func) \ +static void \ +value_transform_##suffix (const GValue *src_value, \ + GValue *dest_value) \ +{ \ + const gchar* src = g_value_get_string (src_value); \ + g_value_set_##suffix (dest_value, trans_func (src)); \ +} + +DEFINE_CAST (uchar, atoi) +DEFINE_CAST (int, atoi) +DEFINE_CAST (long, atol) +DEFINE_CAST (uint, atoi) +DEFINE_CAST (uint64, atoi) +DEFINE_CAST (ulong, atol) +DEFINE_CAST (float, atof) +DEFINE_CAST (double, atof) +DEFINE_CAST (boolean, str_to_boolean) + struct _UcaCameraPrivate { gboolean cancelling_recording; @@ -152,6 +173,12 @@ struct _UcaCameraPrivate { GValueArray *v_binnings; }; +static gboolean +str_to_boolean (const gchar *s) +{ + return g_ascii_strncasecmp (s, "true", 4) == 0; +} + static void uca_camera_set_property_unit (GParamSpec *pspec, UcaUnit unit) { @@ -645,6 +672,82 @@ buffer_thread (UcaCamera *camera) } /** + * uca_camera_parse_arg_props: + * @camera: A #UcaCamera object + * @argv: Array of property assignment strings in the form of `prop=value` + * @argc: Length of @argv + * @error: Location to store a #UcaCameraError error or %NULL + * + * Parses the assignment array @argv and sets the property to the given value. + * If an error occures, @error is set and %FALSE is returned. + * + * Returns: %TRUE on success. + */ +gboolean +uca_camera_parse_arg_props (UcaCamera *camera, gchar **argv, guint argc, GError **error) +{ + GRegex *assignment; + + assignment = g_regex_new ("\\s*([A-Za-z0-9-]*)=(.*)\\s*", 0, 0, error); + + if (*error) + return FALSE; + + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_UCHAR, value_transform_uchar); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_INT, value_transform_int); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_UINT, value_transform_uint); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_UINT64, value_transform_uint64); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_LONG, value_transform_long); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_ULONG, value_transform_ulong); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_FLOAT, value_transform_float); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DOUBLE, value_transform_double); + g_value_register_transform_func (G_TYPE_STRING, G_TYPE_BOOLEAN, value_transform_boolean); + + for (guint i = 0; i < argc; i++) { + GMatchInfo *match; + gboolean success = TRUE; + + g_regex_match (assignment, argv[i], 0, &match); + + if (g_match_info_matches (match)) { + GParamSpec *pspec; + GValue value = {0}; + + gchar *prop = g_match_info_fetch (match, 1); + gchar *string_value = g_match_info_fetch (match, 2); + + g_value_init (&value, G_TYPE_STRING); + g_value_set_string (&value, string_value); + + pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (camera), prop); + + if (pspec != NULL) { + GValue target_value = {0}; + + g_value_init (&target_value, pspec->value_type); + g_value_transform (&value, &target_value); + g_object_set_property (G_OBJECT (camera), prop, &target_value); + } + else { + g_set_error (error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_IMPLEMENTED, + "No property `%s' found", prop); + success = FALSE; + } + + g_match_info_free (match); + g_free (prop); + g_free (string_value); + + if (!success) + return FALSE; + } + } + + g_regex_unref (assignment); + return TRUE; +} + +/** * uca_camera_start_recording: * @camera: A #UcaCamera object * @error: Location to store a #UcaCameraError error or %NULL diff --git a/src/uca-camera.h b/src/uca-camera.h index 45b48ca..d98a871 100644 --- a/src/uca-camera.h +++ b/src/uca-camera.h @@ -149,6 +149,10 @@ struct _UcaCameraClass { UcaCamera * uca_camera_new (const gchar *type, GError **error); +gboolean uca_camera_parse_arg_props (UcaCamera *camera, + gchar **argv, + guint argc, + GError **error); void uca_camera_start_recording (UcaCamera *camera, GError **error); void uca_camera_stop_recording (UcaCamera *camera, |