diff options
Diffstat (limited to 'src/uca-camera.c')
| -rw-r--r-- | src/uca-camera.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/uca-camera.c b/src/uca-camera.c index 46e7cb7..fce3d12 100644 --- a/src/uca-camera.c +++ b/src/uca-camera.c @@ -76,6 +76,11 @@ GQuark uca_unit_quark () return g_quark_from_static_string ("uca-unit-quark"); } +GQuark uca_writable_quark () +{ + return g_quark_from_static_string ("uca-writable-quark"); +} + enum { LAST_SIGNAL }; @@ -1050,3 +1055,53 @@ uca_camera_get_unit (UcaCamera *camera, return data == NULL ? UCA_UNIT_NA : GPOINTER_TO_INT (data); } +/** + * uca_camera_set_writable: + * @camera: A #UcaCamera object + * @prop_name: Name of property + * @writable: %TRUE if property can be written during acquisition + * + * Sets a flag that defines if @prop_name can be written during an acquisition. + * + * Since: 1.6 + */ +void +uca_camera_set_writable (UcaCamera *camera, + const gchar *prop_name, + gboolean writable) +{ + GParamSpec *pspec; + + pspec = get_param_spec_by_name (camera, prop_name); + + if (pspec != NULL) { + if (g_param_spec_get_qdata (pspec, UCA_WRITABLE_QUARK) != NULL) + g_warning ("::%s is already fixed", pspec->name); + else + g_param_spec_set_qdata (pspec, UCA_WRITABLE_QUARK, GINT_TO_POINTER (writable)); + } +} + +/** + * uca_camera_is_writable_during_acquisition: + * @camera: A #UcaCamera object + * @prop_name: Name of property + * + * Check if @prop_name can be written at run-time. This is %FALSE if the + * property is read-only, if uca_camera_set_writable() has not been called or + * uca_camera_set_writable() was called with %FALSE. + * + * Returns: %TRUE if the property can be written at acquisition time. + * Since: 1.6 + */ +gboolean +uca_camera_is_writable_during_acquisition (UcaCamera *camera, + const gchar *prop_name) +{ + GParamSpec *pspec; + + pspec = get_param_spec_by_name (camera, prop_name); + + return (pspec->flags & G_PARAM_WRITABLE) && + g_param_spec_get_qdata (pspec, UCA_WRITABLE_QUARK); +} |