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// This program is free software; you can redistribute
// it and/or modify it under the terms of the GNU
// General Public License as published by the Free
// Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will
// be useful, but WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General
// Public License along with this program; if not,
// write to the Free Software Foundation, Inc., 675
// Mass Ave, Cambridge, MA 02139, USA.
/**
* @file main.cpp
* This file is included in all four plug-ins (PTAdjust, PTCorrect, PTPerspect, and PTRemap)
* Includes the main entry point for the plug-ins
* @date January 2007
*/
#include "main.h"
SPBasicSuite *sSPBasic = NULL;
StaticData *gData = NULL;
ParamData *gParam = NULL;
FilterRecord *gFr = NULL;
int16 *gResult = NULL;
/**
* Display a message box
* @param[in] fmt formatted string to display
* @param[in] ... additional items to add to string
* @return 1
* @todo error check for memory overflow on buf
**/
int display(const char *fmt, ...)
{
int BuffSize = 0;
char buf[400];
va_list ap;
va_start(ap, fmt);
BuffSize = sizeof(buf)/sizeof(char);
#if _MSC_VER >= 1400
vsprintf_s(buf, BuffSize, fmt, ap);
#else
vsprintf(buf, fmt, ap);
#endif
MessageBox(NULL, buf, "Info", MB_OK);
va_end(ap);
return 1;
}
/**
* Init Parameters
* @return none
**/
static void initParameters()
{
}
/**
* Init Data
* @return none
**/
static void initData()
{
memset(gData, 0, sizeof(StaticData));
memInit(memStatic);
memInit(memDynamic);
gData->dll.initDLL = false;
}
/**
* Lock Data
* @param[in] data pointer to the data to lock
* @return none
**/
static void lockData(int32 *data)
{
bool init = false;
BufferProcs *bufferProcs = gFr->bufferProcs;
if (*data == NULL)
{
// create handle
BufferID h;
if (bufferProcs->allocateProc(sizeof(StaticData), &h))
{
*gResult = memFullErr;
display("lockData: allocateProc");
return;
}
*data = (int32)h;
init = true;
}
gData = (StaticData *)bufferProcs->lockProc((BufferID)(*data), true);
if (gData == NULL)
{
*gResult = memFullErr;
display("lockData: lockProc");
return;
}
if (init)
{
initData();
}
return;
}
/**
* Unlock Data
* @param[in] data pointer to the data to unlock
* @return none
**/
static void unlockData(int32 *data)
{
if (*data != NULL)
{
gFr->bufferProcs->unlockProc((BufferID)(*data));
}
}
/**
* Lock the Parameters
* @return none
**/
static void lockParameters()
{
bool init = false;
BufferProcs *bufferProcs = gFr->bufferProcs;
if (gFr->parameters == NULL)
{
// create handle
BufferID h;
if (bufferProcs->allocateProc(sizeof(ParamData), &h))
{
*gResult = memFullErr;
display("lockParameters: allocateProc");
return;
}
gFr->parameters = (Handle)h;
init = true;
}
// lock handle
gParam = (ParamData *)bufferProcs->lockProc((BufferID)(gFr->parameters), true);
if (gParam == NULL)
{
*gResult = memFullErr;
display("lockParameters: lockProc");
return;
}
if (init)
{
initParameters();
}
}
/**
* Unlock the Parameters
* @return none
**/
static void unlockParameters()
{
if (gFr->parameters != NULL)
{
gFr->bufferProcs->unlockProc((BufferID)(gFr->parameters));
}
}
/**
* Lock Data, Parameters, memStatic, and memDynamic
* @param[in] data pointer to the handle to lock
* @return none
**/
static void lockHandles(int32 *data)
{
lockData(data);
lockParameters();
memLockHandles(memStatic);
memLockHandles(memDynamic);
}
/**
* Unlock Data, Parameters, memStatic, and memDynamic
* @param[in] data pointer to the handle to unlock
* @return none
**/
static void unlockHandles(int32 *data)
{
memUnlockHandles(memDynamic);
memFreeAll(memDynamic);
memUnlockHandles(memStatic);
unlockParameters();
unlockData(data);
}
/**
* Do Continue
* @return none
**/
static void DoContinue(void)
{
gFr->inRect.top = 0;
gFr->inRect.bottom = 0;
gFr->inRect.left = 0;
gFr->inRect.right = 0;
gFr->outRect.top = 0;
gFr->outRect.bottom = 0;
gFr->outRect.left = 0;
gFr->outRect.right = 0;
gFr->maskRect.top = 0;
gFr->maskRect.bottom = 0;
gFr->maskRect.left = 0;
gFr->maskRect.right = 0;
}
/**
* Do Finish
* @return 0
**/
static int DoFinish(void)
{
return 0;
}
/**
* Check Prefs
* @return none
**/
static void checkPrefs()
{
// force dialog box if requested by script
PIDescriptorParameters *descParams = gFr->descriptorParameters;
if (!descParams)
{
return;
}
ReadDescriptorProcs *readProcs = gFr->descriptorParameters->readDescriptorProcs;
if ( !readProcs
|| !descParams->descriptor
|| descParams->playInfo != plugInDialogDisplay )
{
return;
}
gData->pan.initPrefs = false;
}
/**
* Determine if displaying dialog box
* @return 1 if displaying dialog, 0 if not
**/
static int DoStart(void)
{
// if scripting, check to see if user wants dialog box
if (gData->pan.initPrefs)
{
checkPrefs();
}
if (panTools())
{
return 1;
}
return 0;
}
/**
* Do Prepare
* @return none
**/
static void DoPrepare(void)
{
// we'll allocate our own space
gFr->bufferSpace = 0;
gFr->maxSpace = 0;
}
/**
* Do Parameters
* @return none
**/
static void DoParameters(void)
{
gData->pan.initPrefs = false;
}
/**
* the main entry point for the plugin
* @param[in] selector
* @param[in,out] filterParamBlock
* @param[in,out] data
* @param[out] result
* @return none
**/
DLLExport MACPASCAL void PluginMain(const int16 selector,
FilterRecord *filterParamBlock,
int32 *data,
int16 *result)
{
// update our global parameters
gFr = filterParamBlock;
gResult = result;
*gResult = noErr;
// handle About dialog
if (selector == filterSelectorAbout)
{
sSPBasic = ((AboutRecordPtr)filterParamBlock)->sSPBasic;
dlgAbout((AboutRecordPtr)filterParamBlock);
return;
}
sSPBasic = filterParamBlock->sSPBasic;
lockHandles(data);
if (*gResult != noErr)
{
return;
}
// do the command according to the selector
switch (selector)
{
case filterSelectorParameters:
DoParameters();
break;
case filterSelectorPrepare:
DoPrepare();
break;
case filterSelectorStart:
DoStart();
break;
case filterSelectorContinue:
DoContinue();
break;
case filterSelectorFinish:
DoFinish();
break;
}
unlockHandles(data);
}

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