/*
This file is part of Filter Foundry, a filter plugin for Adobe Photoshop
Copyright (C) 2003-5 Toby Thain, toby@telegraphics.com.au
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* This is PLATFORM INDEPENDENT user interface code - mainly dialog logic */
#include "ff.h"
#include "piproperties.h"
#include "node.h"
#include "funcs.h"
#include "y.tab.h"
#include "choosefile.h"
PSPixelMap preview_pmap;
PSPixelMask preview_pmask;
Handle preview_handle;
UIRECT preview_rect;
int preview_w,preview_h;
Point preview_scroll;
Boolean preview_complete = false;
Boolean setup_preview(FilterRecordPtr pb){
//dbg("setup_preview");
if(pb->displayPixels && pb->advanceState){
preview_w = MIN(preview_rect.right - preview_rect.left - 2,pb->filterRect.right - pb->filterRect.left);
preview_h = MIN(preview_rect.bottom - preview_rect.top - 2,pb->filterRect.bottom - pb->filterRect.top);
preview_pmap.version = 1;
preview_pmap.bounds.left = preview_pmap.bounds.top = 0;
preview_pmap.bounds.right = preview_w;
preview_pmap.bounds.bottom = preview_h;
preview_pmap.imageMode = nplanes>1 ? plugInModeRGBColor : plugInModeGrayScale;
preview_pmap.rowBytes = nplanes*preview_w;
preview_pmap.colBytes = nplanes;
preview_pmap.planeBytes = 1; /*interleaved*/
// preview_pmap.baseAddr = preview_data;
/* baseAddr must be set before using pixelmap */
//---------------------------------------------------------------------------
// Fields new in version 1:
//---------------------------------------------------------------------------
preview_pmap.mat = NULL;
if(nplanes==4){
preview_pmask.next = NULL;
// preview_pmask.maskData = preview_data+3;
preview_pmask.rowBytes = preview_pmap.rowBytes;
preview_pmask.colBytes = nplanes;
preview_pmask.maskDescription = kSimplePSMask;
preview_pmap.masks = &preview_pmask;
}else
preview_pmap.masks = NULL;
preview_handle = PINEWHANDLE((long)preview_h * preview_pmap.rowBytes);
}else
preview_handle = NULL;
return preview_handle != NULL;
//---------------------------------------------------------------------------
// Fields new in version 2:
//---------------------------------------------------------------------------
// preview_pmap.pixelOverlays;
// preview_pmap.colorManagementOptions;
// setup(pb); // prepare for evaluations
}
void dispose_preview(){
if(preview_handle){
PIDISPOSEHANDLE(preview_handle);
preview_handle = NULL;
}
}
void recalc_preview(FilterRecordPtr pb,DIALOGREF dp){
extern int srcradused,needinput;
extern double zoomfactor;
OSErr e;
int j,n,scaledw,scaledh,imgw,imgh;
Rect r,outRect;
Ptr outrow;
if(preview_handle){
/* size of previewed area, of source image; but no larger than filtered area (selection) */
scaledw = zoomfactor*preview_w;
if(scaledw > (pb->filterRect.right - pb->filterRect.left))
scaledw = (pb->filterRect.right - pb->filterRect.left);
scaledh = zoomfactor*preview_h;
if(scaledh > (pb->filterRect.bottom - pb->filterRect.top))
scaledh = (pb->filterRect.bottom - pb->filterRect.top);
/* scale clipped preview area down again - this becomes the pixel size of preview */
imgw = scaledw/zoomfactor;
if(imgw > preview_w)
imgw = preview_w;
imgh = scaledh/zoomfactor;
if(imgh > preview_h)
imgh = preview_h;
// Use to set the phase of the checkerboard:
preview_pmap.maskPhaseRow = preview_scroll.v/zoomfactor;
preview_pmap.maskPhaseCol = preview_scroll.h/zoomfactor;
/* compute source data rectangle (inRect) */
/* centre preview on filtered part of input image, adding scroll offset */
r.left = (pb->filterRect.left+pb->filterRect.right-scaledw)/2 + preview_scroll.h;
/* make sure it does not go outside the input area */
if(r.left < pb->filterRect.left)
r.left = pb->filterRect.left;
else if(r.left > pb->filterRect.right-scaledw)
r.left = pb->filterRect.right-scaledw;
r.right = r.left + scaledw;
/* now compute for vertical */
r.top = (pb->filterRect.top+pb->filterRect.bottom-scaledh)/2 + preview_scroll.v;
if(r.top < pb->filterRect.top)
r.top = pb->filterRect.top;
else if(r.top > pb->filterRect.bottom-scaledh)
r.top = pb->filterRect.bottom-scaledh;
r.bottom = r.top + scaledh;
/* if formulae need random access to image - src(), rad() - we must request entire area: */
if(srcradused){
SETRECT(pb->inRect,0,0,pb->imageSize.h,pb->imageSize.v);
}else
pb->inRect = r;
pb->outRect = pb->inRect;
SETRECT(pb->maskRect,0,0,0,0);
pb->inLoPlane = pb->outLoPlane = 0;
pb->inHiPlane = pb->outHiPlane = nplanes-1;
//dbg("recalc_preview: about to call advanceState()");
if( !needinput || !(e = pb->advanceState()) ){
Ptr outptr = PILOCKHANDLE(preview_handle,false);
int blankrows = (preview_h-imgh)/2,
blankcols = (preview_w-imgw)/2;
INITRANDSEED();
//dbg("recalc_preview: about to call process()");
SETRECT(outRect,0,0,imgw,imgh);
e = process_scaled(pb,false,
&pb->inRect,&r,&outRect,
outptr+preview_pmap.rowBytes*blankrows+nplanes*blankcols,preview_pmap.rowBytes,
zoomfactor);
if(blankrows){
memset(outptr
,0xff,preview_pmap.
rowBytes*blankrows
);
n = preview_h - blankrows - imgh; /* blank rows below preview */
memset(outptr
+preview_pmap.
rowBytes*(blankrows
+imgh
),0xff,preview_pmap.
rowBytes*n
);
}
if(blankcols){
n = preview_w - blankcols - imgw; /* blank columns on right side of preview */
outrow = outptr+preview_pmap.rowBytes*blankrows;
for( j = blankrows ; j < preview_h - blankrows ; ++j ){
memset(outrow
,0xff,nplanes
*blankcols
);
memset(outrow
+nplanes
*(blankcols
+imgw
),0xff,nplanes
*n
);
outrow += preview_pmap.rowBytes;
}
}
if(!e){
preview_complete = true;
#ifdef WIN_ENV
{
extern HWND preview_hwnd;
HDC hdc = GetDC(preview_hwnd);
//dbg("recalc_preview: about to call drawpreview()");
drawpreview(dp,hdc,outptr);
ReleaseDC(preview_hwnd,hdc);
}
#else
{
GrafPtr saveport;
GetPort(&saveport);
SetPortDialogPort(dp);
drawpreview(dp,NULL,outptr);
SetPort(saveport);
}
#endif
}
PIUNLOCKHANDLE(preview_handle);
}else{ char s[0x100];
sprintf(s
,"recalc_preview: advanceState failed (%d)\n\
inRect=(%d,%d,%d,%d) filterRect=(%d,%d,%d,%d) inLoPlane=%d inHiPlane=%d ",
e,
pb->inRect.left,pb->inRect.top,pb->inRect.right,pb->inRect.bottom,
pb->filterRect.left,pb->filterRect.top,pb->filterRect.right,pb->filterRect.bottom,
pb->inLoPlane,pb->inHiPlane);
dbg(s);
}
}
}
OSErr drawpreview(DIALOGREF dp,void *hdc,Ptr imageptr){
int32 watchsusp;
OSErr e = noErr;
VRect srcRect;
UIRECT imagebounds;
if(preview_handle && preview_complete){
srcRect = preview_pmap.bounds;
imagebounds.left = (preview_rect.left+preview_rect.right-preview_w)/2;
imagebounds.top = (preview_rect.top+preview_rect.bottom-preview_h)/2;
imagebounds.right = imagebounds.left + preview_w;
imagebounds.bottom = imagebounds.top + preview_h;
preview_pmap.baseAddr = imageptr;//PILOCKHANDLE(preview_handle,false);
preview_pmask.maskData = imageptr+3;
if(gpb->propertyProcs->getPropertyProc){
gpb->propertyProcs->getPropertyProc(kPhotoshopSignature,propWatchSuspension,0,&watchsusp,NULL);
gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp+1,NULL);
}
e = gpb->displayPixels(&preview_pmap,&srcRect,imagebounds.top,imagebounds.left,hdc);
if(gpb->propertyProcs->getPropertyProc)
gpb->propertyProcs->setPropertyProc(kPhotoshopSignature,propWatchSuspension,0,watchsusp,NULL);
}
return e;
}
#if 0
// old process-then-scale preview code
if(scaleddata = PINEWHANDLE((long)nplanes*scaledw*scaledh)){
Ptr scaledptr = PILOCKHANDLE(scaleddata,false);
//process(pb,false,&pb->inRect,&r,&r,outptr,preview_pmap.rowBytes)
long scaledrb = (long)nplanes*scaledw;
if(!(e = process(pb,false,&pb->inRect,&r,&r,scaledptr,scaledrb)){
/* copy data from scaledptr to outptr, scaling as we go */
if(zoomfactor == 1.)
memcpy(outptr
,scaledptr
,(long)nplanes
*preview_w
*preview_h
);
else{
int blankrows = (preview_h-imgh)/2,
blankcols = (preview_w-imgw)/2;
memset(outptr
,0xff,preview_pmap.
rowBytes*blankrows
);
memset(outptr
+preview_pmap.
rowBytes*(preview_h
-blankrows
),0xff,preview_pmap.
rowBytes*blankrows
);
outrow = outptr+preview_pmap.rowBytes*blankrows;
for( j=blankrows,y=0. ; j<preview_h-blankrows ; ++j,y+=zoomfactor ){
memset(outrow
,0xff,nplanes
*blankcols
);
memset(outrow
+nplanes
*(preview_w
-blankcols
),0xff,nplanes
*blankcols
);
outrow += nplanes*blankcols;
inrow = scaledptr + scaledrb*(int)y;
for( i=blankcols,x = 0. ; i<(preview_w-blankcols) ; ++i,x+=zoomfactor){
inpix = inrow + nplanes*(int)x ;
for(k=0;k<nplanes;++k)
*outrow++ = inpix[k];
}
outrow += nplanes*blankcols;
}
}
}
PIDISPOSEHANDLE(scaleddata);
}else e = memFullErr;
#endif