bool GetKeysAction::GetNextKey(DescriptorTypeID &type)
{
if(m_pDescParams == NULL)
return false;
int32 flags = 0;
return !!m_pReadProcs->getKeyProc(m_Token, &m_CurKey, &type, &flags);
}
//-------------------------------------------------------------------------------
//
// ReadScriptParameters
//
// See if we were called by the Photoshop scripting system and return the value
// in displayDialog if the user wants to see our dialog.
//
//-------------------------------------------------------------------------------
OSErr ReadScriptParameters(Boolean* displayDialog)
{
OSErr err = noErr;
PIReadDescriptor token = NULL;
DescriptorKeyID key = 0;
DescriptorTypeID type = 0;
int32 flags = 0;
DescriptorKeyIDArray array = { keyPSGamma, keyPSInvert, 0 };
double gamma;
Boolean invert;
if (displayDialog != NULL)
*displayDialog = gData->queryForParameters;
else
return errMissingParameter;
if (!*displayDialog)
{
PIDescriptorParameters* descParams = gFilterRecord->descriptorParameters;
if (descParams == NULL) return err;
ReadDescriptorProcs* readProcs = gFilterRecord->descriptorParameters->readDescriptorProcs;
if (readProcs == NULL) return err;
if (descParams->descriptor != NULL)
{
token = readProcs->openReadDescriptorProc(descParams->descriptor, array);
if (token != NULL)
{
while(readProcs->getKeyProc(token, &key, &type, &flags) && !err)
{
switch (key)
{
case keyPSGamma:
err = readProcs->getFloatProc(token, &gamma);
if (!err)
gParams->gamma = gamma;
break;
case keyPSInvert:
err = readProcs->getBooleanProc(token, &invert);
if (!err)
gParams->invert = invert != FALSE;
break;
default:
err = readErr;
break;
}
}
err = readProcs->closeReadDescriptorProc(token);
gFilterRecord->handleProcs->disposeProc(descParams->descriptor);
descParams->descriptor = NULL;
}
*displayDialog = descParams->playInfo == plugInDialogDisplay;
}
}
return err;
}
//-------------------------------------------------------------------------------
//
// ReadScriptParamsOnRead
//
// Checks the parameters against scripting-returned parameters, if any, and
// updates the globals to match ones provided by the scripting system.
//
// Inputs:
// void Pointer to global structure.
//
// Outputs:
// returns TRUE If you should pop your dialog.
// returns FALSE If you should not pop your dialog.
//
// gResult Will return any fatal error.
//
//-------------------------------------------------------------------------------
Boolean ReadScriptParamsOnRead (void) {
DescriptorKeyID key = 0;
DescriptorTypeID type = 0;
DescriptorKeyIDArray array = { NULLID };
int32 flags = 0;
OSErr stickyError = noErr;
Boolean returnValue = true;
PIDescriptorParameters * descParams = gFormatRecord->descriptorParameters;
if (descParams == NULL) {
return returnValue;
}
ReadDescriptorProcs * readProcs = descParams->readDescriptorProcs;
if (readProcs == NULL) {
return returnValue;
}
if (descParams->descriptor == NULL) {
return returnValue;
}
PIReadDescriptor token = readProcs->openReadDescriptorProc(descParams->descriptor, array);
if (token == NULL) {
return returnValue;
}
while (readProcs->getKeyProc(token, &key, &type, &flags)) {
switch (key) {
case keyMyFoo:
// readProcs->getBooleanProc(token, &gData->fooValueForRead);
break; // check keys here
}
}
stickyError = readProcs->closeReadDescriptorProc(token); // closes & disposes.
// Dispose the parameter block descriptor:
sPSHandle->Dispose(descParams->descriptor);
descParams->descriptor = NULL;
if (stickyError) {
if (stickyError == errMissingParameter) {// missedParamErr == -1715
;
}
/* (descriptorKeyIDArray != NULL)
missing parameter somewhere. Walk IDarray to find which one. */
else {
*gResult = stickyError;
}
}
returnValue = descParams->playInfo == plugInDialogDisplay;
// return TRUE if want to show our Dialog
return returnValue;
}
//-------------------------------------------------------------------------------
//
// ReadScriptParamsOnWrite
//
// Checks the parameters against scripting-returned parameters, if any, and
// updates the globals to match ones provided by the scripting system.
//
// Inputs:
// void Pointer to global structure.
//
// Outputs:
// returns TRUE If you should pop your dialog.
// returns FALSE If you should not pop your dialog.
//
// gResult Will return any fatal error.
//
//-------------------------------------------------------------------------------
Boolean ReadScriptParamsOnWrite (void) {
DescriptorKeyID key = 0;
DescriptorTypeID type = 0;
DescriptorKeyIDArray array = { NULLID };
int32 flags = 0;
OSErr stickyError = noErr;
Boolean returnValue = true;
PIDescriptorParameters * descParams = gFormatRecord->descriptorParameters;
if (descParams == NULL) {
return returnValue;
}
ReadDescriptorProcs * readProcs = gFormatRecord->descriptorParameters->readDescriptorProcs;
if (readProcs == NULL) {
return returnValue;
}
if (descParams->descriptor == NULL) {
return returnValue;
}
PIReadDescriptor token = readProcs->openReadDescriptorProc(descParams->descriptor, array);
if (token == NULL) {
return returnValue;
}
while (readProcs->getKeyProc(token, &key, &type, &flags)) {
switch (key) {
case keyMyBar:
// readProcs->getBooleanProc(token, &gData->barValueForWrite);
break;
}
}
stickyError = readProcs->closeReadDescriptorProc(token); // closes & disposes.
// Dispose the parameter block descriptor:
sPSHandle->Dispose(descParams->descriptor);
descParams->descriptor = NULL;
returnValue = descParams->playInfo == plugInDialogDisplay;
// return TRUE if want to show our Dialog
return returnValue;
}
//-------------------------------------------------------------------------------
//
// ReadScriptParameters
//
// See if we were called by the Photoshop scripting system and return the value
// in displayDialog if the user wants to see our dialog.
//
//-------------------------------------------------------------------------------
OSErr ReadScriptParameters(Boolean* displayDialog)
{
OSErr err = noErr;
PIReadDescriptor token = NULL;
DescriptorKeyID key = 0;
DescriptorTypeID type = 0;
DescriptorUnitID units;
int32 flags = 0;
double percent;
DescriptorEnumID disposition;
Boolean ignoreSelection;
DescriptorKeyIDArray array = { keyAmount, keyDisposition, 0 };
if (displayDialog != NULL)
*displayDialog = gData->queryForParameters;
else
return errMissingParameter;
PIDescriptorParameters* descParams = gFilterRecord->descriptorParameters;
if (descParams == NULL) return err;
ReadDescriptorProcs* readProcs = gFilterRecord->descriptorParameters->readDescriptorProcs;
if (readProcs == NULL) return err;
if (descParams->descriptor != NULL)
{
token = readProcs->openReadDescriptorProc(descParams->descriptor, array);
if (token != NULL)
{
while(readProcs->getKeyProc(token, &key, &type, &flags) && !err)
{
switch (key)
{
case keyAmount:
err = readProcs->getUnitFloatProc(token, &units, &percent);
if (!err)
gParams->percent = (int16)percent;
break;
case keyDisposition:
err = readProcs->getEnumeratedProc(token, &disposition);
if (!err)
{
gParams->disposition = ScriptToDialog(disposition);
CopyColor(gData->color,
gData->colorArray[gParams->disposition]);
}
break;
case keyIgnoreSelection:
err = readProcs->getBooleanProc(token, &ignoreSelection);
if (!err)
gParams->ignoreSelection = ignoreSelection;
break;
default:
err = readErr;
break;
}
}
err = readProcs->closeReadDescriptorProc(token);
gFilterRecord->handleProcs->disposeProc(descParams->descriptor);
descParams->descriptor = NULL;
}
*displayDialog = descParams->playInfo == plugInDialogDisplay;
}
return err;
}