/* DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS */
TW_UINT16 SANE_EnableDSUserInterface (pTW_IDENTITY pOrigin,
TW_MEMREF pData)
{
TW_UINT16 twRC = TWRC_SUCCESS;
pTW_USERINTERFACE pUserInterface = (pTW_USERINTERFACE) pData;
TRACE ("DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS\n");
if (activeDS.currentState != 4)
{
twRC = TWRC_FAILURE;
activeDS.twCC = TWCC_SEQERROR;
WARN("sequence error %d\n", activeDS.currentState);
}
else
{
activeDS.hwndOwner = pUserInterface->hParent;
if (! activeDS.windowMessage)
activeDS.windowMessage = RegisterWindowMessageA("SANE.DS ACTIVITY MESSAGE");
if (pUserInterface->ShowUI)
{
BOOL rc;
activeDS.currentState = 5; /* Transitions to state 5 */
rc = DoScannerUI();
pUserInterface->ModalUI = TRUE;
if (!rc)
{
if (activeDS.windowMessage)
PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_CLOSEDSREQ, 0);
}
#ifdef SONAME_LIBSANE
else
{
psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
activeDS.sane_param_valid = TRUE;
}
#endif
}
else
{
/* no UI will be displayed, so source is ready to transfer data */
activeDS.currentState = 6; /* Transitions to state 6 directly */
if (activeDS.windowMessage)
PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_XFERREADY, 0);
}
twRC = TWRC_SUCCESS;
activeDS.twCC = TWCC_SUCCESS;
}
return twRC;
}
/* ICAP_PIXELTYPE */
static TW_UINT16 SANE_ICAPPixelType (pTW_CAPABILITY pCapability, TW_UINT16 action)
{
TW_UINT16 twCC = TWCC_BADCAP;
#ifdef SONAME_LIBSANE
TW_UINT32 possible_values[3];
int possible_value_count;
TW_UINT32 val;
SANE_Status rc;
SANE_Int status;
SANE_String_Const *choices;
char current_mode[64];
TW_UINT16 current_pixeltype = TWPT_BW;
SANE_Char mode[64];
TRACE("ICAP_PIXELTYPE\n");
rc = sane_option_probe_mode(activeDS.deviceHandle, &choices, current_mode, sizeof(current_mode));
if (rc != SANE_STATUS_GOOD)
{
ERR("Unable to retrieve mode from sane, ICAP_PIXELTYPE unsupported\n");
return twCC;
}
sane_mode_to_pixeltype(current_mode, ¤t_pixeltype);
/* Sane does not support a concept of a default mode, so we simply cache
* the first mode we find */
if (! activeDS.PixelTypeSet)
{
activeDS.PixelTypeSet = TRUE;
activeDS.defaultPixelType = current_pixeltype;
}
switch (action)
{
case MSG_QUERYSUPPORT:
twCC = set_onevalue(pCapability, TWTY_INT32,
TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
break;
case MSG_GET:
for (possible_value_count = 0; choices && *choices && possible_value_count < 3; choices++)
{
TW_UINT16 pix;
if (sane_mode_to_pixeltype(*choices, &pix))
possible_values[possible_value_count++] = pix;
}
twCC = msg_get_enum(pCapability, possible_values, possible_value_count,
TWTY_UINT16, current_pixeltype, activeDS.defaultPixelType);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
TRACE("Setting pixeltype to %d\n", val);
if (! pixeltype_to_sane_mode(val, mode, sizeof(mode)))
return TWCC_BADVALUE;
status = 0;
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
/* Some SANE devices use 'Grayscale' instead of the standard 'Gray' */
if (rc == SANE_STATUS_INVAL && strcmp(mode, SANE_VALUE_SCAN_MODE_GRAY) == 0)
{
strcpy(mode, "Grayscale");
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
}
if (rc != SANE_STATUS_GOOD)
return sane_status_to_twcc(rc);
if (status & SANE_INFO_RELOAD_PARAMS)
psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
}
break;
case MSG_GETDEFAULT:
twCC = set_onevalue(pCapability, TWTY_UINT16, activeDS.defaultPixelType);
break;
case MSG_RESET:
current_pixeltype = activeDS.defaultPixelType;
if (! pixeltype_to_sane_mode(current_pixeltype, mode, sizeof(mode)))
return TWCC_BADVALUE;
status = 0;
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
/* Some SANE devices use 'Grayscale' instead of the standard 'Gray' */
if (rc == SANE_STATUS_INVAL && strcmp(mode, SANE_VALUE_SCAN_MODE_GRAY) == 0)
{
strcpy(mode, "Grayscale");
rc = sane_option_set_str(activeDS.deviceHandle, "mode", mode, &status);
}
if (rc != SANE_STATUS_GOOD)
return sane_status_to_twcc(rc);
if (status & SANE_INFO_RELOAD_PARAMS)
psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, current_pixeltype);
TRACE("Returning current pixeltype of %d\n", current_pixeltype);
break;
}
#endif
return twCC;
}
