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// PTLens, Copyright (C) 2004, Thomas Niemann
// email: thomasn@epaperpress.com, subject=ptlens
//
// 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.
#include "main.h"
SPBasicSuite * sSPBasic = NULL;
StaticData *gData = NULL;
ParamData *gParam = NULL;
FilterRecord *gFr = NULL;
int16 *gResult;
int display(const char *fmt, ...) {
char buf[100];
va_list ap;
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
MessageBox(NULL, buf, "Info", MB_OK);
va_end(ap);
return 1;
}
static void initParameters() {}
static void initData() {
memset(gData, 0, sizeof(StaticData));
memInit(memStatic);
memInit(memDynamic);
DLL.initDLL = false;
}
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;
return;
}
*data = (int32)h;
init = true;
}
gData = (StaticData *)bufferProcs->lockProc((BufferID)(*data), true);
if (gData == NULL) {
*gResult = memFullErr;
return;
}
if (init) initData();
return;
}
static void unlockData(int32 *data) {
if (*data != NULL)
gFr->bufferProcs->unlockProc((BufferID)(*data));
}
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;
return;
}
gFr->parameters = (Handle)h;
init = true;
}
// lock handle
gParam = (ParamData *)bufferProcs->lockProc((BufferID)(gFr->parameters), true);
if (gParam == NULL) {
*gResult = memFullErr;
return;
}
if (init) initParameters();
}
static void unlockParameters() {
if (gFr->parameters != NULL)
gFr->bufferProcs->unlockProc((BufferID)(gFr->parameters));
}
static void lockHandles(int32 *data) {
lockData(data);
lockParameters();
memLockHandles(memStatic);
memLockHandles(memDynamic);
}
static void unlockHandles(int32 *data) {
memUnlockHandles(memDynamic);
memFreeAll(memDynamic);
memUnlockHandles(memStatic);
unlockParameters();
unlockData(data);
}
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;
}
static int DoFinish(void) {
return 0;
}
static void checkPrefs() {
// force dialog box if requested by script
PIDescriptorParameters* descParams = gFr->descriptorParameters;
if (!descParams) return;
ReadDescriptorProcs* readProcs = gFr->descriptorParameters->readDescriptorProcs;
if (!readProcs) return;
if (!descParams->descriptor) return;
if (descParams->playInfo != plugInDialogDisplay) return;
PAN.initPrefs = false;
}
static int DoStart(void) {
// if scripting, check to see if user wants dialog box
if (PAN.initPrefs) checkPrefs();
if (panTools()) return 1;
return 0;
}
static void DoPrepare(void) {
// we'll allocate our own space
gFr->bufferSpace = 0;
gFr->maxSpace = 0;
}
static void DoParameters(void) {
PAN.initPrefs = false;
}
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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