Include #define statements for strings that are used as possible values

by SVI Huygens in these cases:
* sensor type (microscope type)
* STED depletion mode
* SPIM excitation mode
* scatter model
* reliability level of specific microscopic parameters

By itself, the inclusion of these comments and #define lines does not change
the functionality of the ics library, but they can be useful as reference for
other implementations that are reading and writing ics files to be exchanged
with Huygens.

libics.h

@@ -108,6 +108,100 @@ extern "C" {
 #define ICS_LINE_LENGTH 1024 /* maximum length of the lines in the .ics file. */
 #define ICS_MAXPATHLEN 512   /* maximum length of the file names.             */
 
+/* The following definitions are used by SVI Huygens. They are included as a
+   reference to which strings may be encountered in ics files written by
+   Huygens. */
+
+/* Define sensor type identifying text strings: */
+
+/* This is an incoherent Wide Field microscope: */
+#define ICS_SENSOR_TYPE_INCOH_WF      "IncohWFMicr"
+/* For backwards compatibility, use ICS_SENSOR_TYPE_INCOH_WF instead: */
+#define ICS_SENSOR_TYPE_INCOH_CONV    "IncohConvMicr"
+/* This is an incoherent confocal microscope: */
+#define ICS_SENSOR_TYPE_INCOH_CONF    "IncohConfMicr"
+/* These are multi photon systems: */
+#define ICS_SENSOR_TYPE_MPHOT_WF      "MPhotonWFMicr"
+#define ICS_SENSOR_TYPE_MPHOT_CONF    "MPhotonConfMicr"
+/* This is a 4Pi excitation system: */
+#define ICS_SENSOR_TYPE_4PI           "4PiMicr"
+/* This is a scanning disk confocal microscope: */
+#define ICS_SENSOR_TYPE_NDCM          "NipkowConfMicr"
+/* This is a scanning SoRa disk confocal microscope: */
+#define ICS_SENSOR_TYPE_SORA          "SoRaConfMicr"
+/* This is a STED microscope: */
+#define ICS_SENSOR_TYPE_STED          "STEDMicr"
+/* This is a Structured Illumination microscope: */
+#define ICS_SENSOR_TYPE_SI            "SIMicr"
+/* This is a SPIM microscope: */
+#define ICS_SENSOR_TYPE_SPIM          "SPIMMicr"
+/* This is a (VT-)iSIM confocal microscope (iSIM): */
+#define ICS_SENSOR_TYPE_ISIM          "ISIMConfMicr"
+/* This is a rescan confocal microscope (RCM): */
+#define ICS_SENSOR_TYPE_RCM           "RescanConfMicr"
+/* This is a detector array microscope (AiryScan, NanoSpad): */
+#define ICS_SENSOR_TYPE_ARRDET        "ArrDetConfMicr"
+/* This is a total internal reflection microsope (TIRF): */
+#define ICS_SENSOR_TYPE_TIRF          "TIRFMicr"
+/* This is a special type used for 3d SMLM calibration data: */
+#define ICS_SENSOR_TYPE_SMLM          "SmlmMicr"
+/* This is a brightfield microscope: */
+#define ICS_SENSOR_TYPE_BRIGHT        "Brightfield"
+/* This is a Jack-of-all-trades: */
+#define ICS_SENSOR_TYPE_GENERIC       "Generic"
+
+/* Define STED depletion modes */
+/* Depletion with a pulse laser. */
+#define ICS_STED_MODE_VORTEX_PULSED   "VortexPulsed"
+/* Depletion with a CW laser. */
+#define ICS_STED_MODE_VORTEX_CW       "VortexCW"
+/* Depletion with a CW laser and gated detection */
+#define ICS_STED_MODE_VORTEX_CW_GATED "VortexCWGated"
+/* Abberior stedycon. */
+#define ICS_STED_MODE_ABB_STEDYCON    "AbberiorStedycon"
+/* Should be last in list. */
+#define ICS_STED_MODE_LAST            "StedLast"
+
+/* Define SPIM excitation types */
+#define ICS_SPIM_EXC_SCANNING         "Scanning"
+#define ICS_SPIM_EXC_SCANNING_ANNULUS "ScanningAnnulus"
+#define ICS_SPIM_EXC_SCANNING_LATTICE "ScanningLattice"
+#define ICS_SPIM_EXC_CYLINDER         "Cylinder"
+#define ICS_SPIM_EXC_GAUSS            "Gauss"
+#define ICS_SPIM_EXC_GAUSS_MUVI       "GaussMuVi"
+#define ICS_SPIM_EXC_GAUSS_FLAT       "GaussFlat"
+#define ICS_SPIM_EXC_LAST             "SpimLast"
+
+/* Define scatter models. */
+#define ICS_SCATTER_MODEL_NONE        "None"
+#define ICS_SCATTER_MODEL_EXP_2D      "Exp2D"
+#define ICS_SCATTER_MODEL_GAUSS_2D    "Gauss2D"
+#define ICS_SCATTER_MODEL_MIXED_2D    "Mixed2D"
+#define ICS_SCATTER_MODEL_EXP_1D      "Exp1D"
+#define ICS_SCATTER_MODEL_LAST        "ScatterLast"
+
+/* Define reliability levels of the microscopic parameters */
+#define ICS_TRUST_SAMPLING_X          "reported"
+#define ICS_TRUST_SAMPLING_Y          "reported"
+#define ICS_TRUST_SAMPLING_Z          "reported"
+#define ICS_TRUST_SAMPLING_T          "reported"
+#define ICS_TRUST_MICR_TYPE           "reported"
+#define ICS_TRUST_CHAN_CNT            "default"
+#define ICS_TRUST_IMAGE_DIR           "default"
+#define ICS_TRUST_NUM_APERTURE        "reported"
+#define ICS_TRUST_OBJ_QUALITY         "default"
+#define ICS_TRUST_RI_MEDIA            "reported"
+#define ICS_TRUST_RI_LENS             "reported"
+#define ICS_TRUST_PINH_RADIUS         "reported"
+#define ICS_TRUST_PINH_SPC            "reported"
+#define ICS_TRUST_EX_LAMBDA           "reported"
+#define ICS_TRUST_EM_LAMBDA           "reported"
+#define ICS_TRUST_PHOTON_CNT          "reported"
+#define ICS_TRUST_IFACE_PRIM          "default"
+#define ICS_TRUST_IFACE_SCND          "default"
+
+/* End of definitions that are used specifically by SVI Huygens. */
+
 
 /* These are the known data types for imels. If you use another type, you can't
    use the top-level functions: */