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UCommands.inc1.p
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UCommands.inc1.p
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{Photoshop version 1.0.1, file: UCommands.inc1.p
Computer History Museum, www.computerhistory.org
This material is (C)Copyright 1990 Adobe Systems Inc.
It may not be distributed to third parties.
It is licensed for non-commercial use according to
www.computerhistory.org/softwarelicense/photoshop/ }
{$I UAssembly.a.inc}
{$I UFloat.a.inc}
{$I UDither.a.inc}
{*****************************************************************************}
{$S AInit}
PROCEDURE ScanPouchFiles (theType: OSType;
PROCEDURE TestIt (fileName: TFileName));
LABEL
1;
CONST
kGeneralType = '8BPI';
VAR
fi: FailInfo;
name: Str255;
index: INTEGER;
refNum: INTEGER;
pb: ParamBlockRec;
PROCEDURE CleanUp (error: INTEGER; message: LONGINT);
BEGIN
GOTO 1
END;
BEGIN
FOR index := 1 TO 32767 DO
BEGIN
WITH pb DO
BEGIN
ioNamePtr := @name;
ioVRefNum := gPouchRefNum;
ioFVersNum := 0;
ioFDirIndex := index
END;
IF PBGetFInfo (@pb, FALSE) <> noErr THEN LEAVE;
IF (pb.ioFlFndrInfo.fdType = theType) OR
(pb.ioFlFndrInfo.fdType = kGeneralType) THEN
IF LENGTH (name) <= kFileNameLength THEN
BEGIN
refNum := OpenResFile (name);
IF refNum <> -1 THEN
BEGIN
CatchFailures (fi, CleanUp);
TestIt (name);
Success (fi);
1: CloseResFile (refNum)
END
END
END
END;
{*****************************************************************************}
{$S AInit}
PROCEDURE AddNameToMenu (command: INTEGER; name: Str255);
VAR
mark: CHAR;
item: INTEGER;
count: INTEGER;
oldName: Str255;
menu: MenuHandle;
compare: INTEGER;
cmdMenu: INTEGER;
cmdItem: INTEGER;
BEGIN
CmdToMenuItem (command, cmdMenu, cmdItem);
GetItemMark (GetResMenu (cmdMenu), cmdItem, mark);
menu := GetResMenu (ORD (mark));
count := CountMItems (menu);
item := 1;
WHILE item <= count DO
BEGIN
GetItem (menu, item, oldName);
compare := RelString (name, oldName, TRUE, TRUE);
IF compare <= 0 THEN LEAVE;
item := item + 1
END;
IF item > count THEN
BEGIN
AppendMenu (menu, 'Dummy');
SetItem (menu, item, name)
END
ELSE IF compare <> 0 THEN
BEGIN
InsMenuItem (menu, 'Dummy', item - 1);
SetItem (menu, item, name)
END
END;
{*****************************************************************************}
{$S AInit}
PROCEDURE InitPlugInList (kind: ResType;
loVersion, hiVersion: INTEGER;
VAR first: HPlugInInfo;
command: INTEGER);
PROCEDURE AddPlugIn (name: Str255;
fileName: TFileName;
resourceID: INTEGER;
version: INTEGER);
VAR
aPlugInInfo: HPlugInInfo;
BEGIN
aPlugInInfo := HPlugInInfo (NewHandle (SIZEOF (TPlugInInfo)));
FailMemError;
WITH aPlugInInfo^^ DO
BEGIN
fName := name;
fFileName := fileName;
fKind := kind;
fResourceID := resourceID;
fVersion := version;
fData := 0;
fParameters := NIL;
fNext := first
END;
first := aPlugInInfo;
AddNameToMenu (command, name)
END;
PROCEDURE TestIt (fileName: TFileName);
TYPE
IntegerPtr = ^INTEGER;
VAR
h: Handle;
name: Str255;
index: INTEGER;
count: INTEGER;
version: INTEGER;
resourceID: INTEGER;
ignoreType: ResType;
BEGIN
count := Count1Resources (kind);
FOR index := 1 TO count DO
BEGIN
SetResLoad (FALSE);
h := Get1IndResource (kind, index);
SetResLoad (TRUE);
IF h <> NIL THEN
BEGIN
GetResInfo (h, resourceID, ignoreType, name);
FailResError;
IF LENGTH (name) <> 0 THEN
BEGIN
h := Get1Resource ('PiMI', resourceID);
IF h <> NIL THEN
BEGIN
version := IntegerPtr (h^)^;
IF (version >= loVersion) AND
(version <= hiVersion) THEN
AddPlugIn (name, fileName, resourceID, version)
END
END
END
END
END;
BEGIN
first := NIL;
IF NOT gFinderPrinting THEN
BEGIN
TestIt ('');
ScanPouchFiles (kind, TestIt)
END
END;
{*****************************************************************************}
{$S AInit}
PROCEDURE CheckForNoPlugIns (command: INTEGER);
VAR
mark: CHAR;
name: Str255;
count: INTEGER;
cmdMenu: INTEGER;
cmdItem: INTEGER;
subMenu: MenuHandle;
mainMenu: MenuHandle;
BEGIN
CmdToMenuItem (command, cmdMenu, cmdItem);
mainMenu := GetResMenu (cmdMenu);
GetItemMark (mainMenu, cmdItem, mark);
subMenu := GetResMenu (ORD (mark));
count := CountMItems (subMenu);
IF count = 0 THEN
BEGIN
SetItemCmd (mainMenu, cmdItem, CHR (noMark));
SetItemMark (mainMenu, cmdItem, CHR (noMark))
END
END;
{*****************************************************************************}
{$S ASelCommand}
FUNCTION IsPlugIn (name: Str255;
first: HPlugInInfo;
VAR info: HPlugInInfo): BOOLEAN;
BEGIN
info := first;
WHILE info <> NIL DO
BEGIN
IF EqualString (name, info^^.fName, TRUE, TRUE) THEN
BEGIN
IsPlugIn := TRUE;
EXIT (IsPlugIn)
END;
info := info^^.fNext
END;
IsPlugIn := FALSE
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE GetCenterPoint (view: TImageView; VAR center: Point);
VAR
r: Rect;
BEGIN
view.fFrame.GetViewedRect (r);
center.h := BSR (ORD4 (r.right) + r.left, 1);
center.v := BSR (ORD4 (r.bottom) + r.top, 1);
view.CvtView2Image (center)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE SetTopLeft (view: TImageView; top, left: INTEGER);
BEGIN
SetCtlValue (view.fFrame.fScrollBars [h], left);
SetCtlValue (view.fFrame.fScrollBars [v], top);
view.fFrame.ScrlToSBars (TRUE)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE SetCenterPoint (view: TImageView; center: Point);
VAR
r: Rect;
tl: Point;
BEGIN
tl := center;
view.CvtImage2View (tl, kRoundDown);
r := view.fFrame.fContentRect;
tl.h := tl.h - BSR (r.right - r.left, 1);
tl.v := tl.v - BSR (r.bottom - r.top, 1);
SetTopLeft (view, tl.v, tl.h)
END;
{*****************************************************************************}
{$S ADoCommand}
FUNCTION MakeMonochromeArray (rArray, gArray, bArray: TVMArray): TVMArray;
VAR
rPtr: Ptr;
gPtr: Ptr;
bPtr: Ptr;
mPtr: Ptr;
fi: FailInfo;
row: INTEGER;
mArray: TVMArray;
PROCEDURE CleanUp (error: INTEGER; message: LONGINT);
BEGIN
IF rPtr <> NIL THEN rArray.DoneWithPtr;
IF gPtr <> NIL THEN gArray.DoneWithPtr;
IF bPtr <> NIL THEN bArray.DoneWithPtr;
rArray.Flush;
gArray.Flush;
bArray.Flush;
mArray.Free
END;
BEGIN
mArray := NewVMArray (rArray.fBlockCount, rArray.fLogicalSize, 1);
CatchFailures (fi, CleanUp);
FOR row := 0 TO mArray.fBlockCount - 1 DO
BEGIN
UpdateProgress (row, mArray.fBlockCount);
rPtr := NIL;
gPtr := NIL;
bPtr := NIL;
rPtr := rArray.NeedPtr (row, row, FALSE);
gPtr := gArray.NeedPtr (row, row, FALSE);
bPtr := bArray.NeedPtr (row, row, FALSE);
mPtr := mArray.NeedPtr (row, row, TRUE);
DoMakeMonochrome (rPtr, gGrayLUT.R,
gPtr, gGrayLUT.G,
bPtr, gGrayLUT.B,
mPtr, mArray.fLogicalSize);
rArray.DoneWithPtr;
gArray.DoneWithPtr;
bArray.DoneWithPtr;
mArray.DoneWithPtr
END;
UpdateProgress (1, 1);
Success (fi);
rArray.Flush;
gArray.Flush;
bArray.Flush;
mArray.Flush;
MakeMonochromeArray := mArray;
END;
{*****************************************************************************}
{$S ADoCommand}
FUNCTION CopyHalftoneRect (srcBuffer: TVMArray;
r: Rect;
depth: INTEGER): TVMArray;
VAR
dr: Rect;
srcPtr: Ptr;
dstPtr: Ptr;
fi: FailInfo;
row: INTEGER;
map: TLookUpTable;
rowBytes: INTEGER;
dstBuffer: TVMArray;
PROCEDURE CleanUp (error: INTEGER; message: LONGINT);
BEGIN
IF srcPtr <> NIL THEN srcBuffer.DoneWithPtr;
srcBuffer.Flush;
dstBuffer.Free
END;
BEGIN
{$IFC qDebug}
IF (depth <> 1) AND (depth <> 8) THEN
ProgramBreak ('Bad depth passed to CopyHalftoneRect');
{$ENDC}
IF depth = 8 THEN
rowBytes := r.right - r.left
ELSE
rowBytes := BSL (BSR (r.right - r.left + 15, 4), 1);
dstBuffer := NewVMArray (r.bottom - r.top, rowBytes, 1);
CatchFailures (fi, CleanUp);
dr := r;
dr.top := 0;
dr.bottom := 1;
FOR row := r.top TO r.bottom - 1 DO
BEGIN
srcPtr := NIL;
srcPtr := srcBuffer.NeedPtr (row, row, FALSE);
dstPtr := dstBuffer.NeedPtr (row - r.top, row - r.top, TRUE);
DoHalftone (srcPtr, 0, dstPtr, rowBytes, depth, dr, 1);
srcBuffer.DoneWithPtr;
dstBuffer.DoneWithPtr
END;
srcPtr := NIL;
srcBuffer.Flush;
dstBuffer.Flush;
IF depth = 8 THEN
BEGIN
map [0] := CHR (255);
map [1] := CHR ( 0);
dstBuffer.MapBytes (map)
END;
Success (fi);
CopyHalftoneRect := dstBuffer
END;
{*****************************************************************************}
{$S ASelCommand}
PROCEDURE TBufferCommand.IBufferCommand (itsCommand: INTEGER;
view: TImageView);
VAR
channel: INTEGER;
BEGIN
fView := view;
fDoc := TImageDocument (view.fDocument);
FOR channel := 0 TO kMaxChannels - 1 DO
fBuffer [channel] := NIL;
ICommand (itsCommand)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TBufferCommand.Free; OVERRIDE;
VAR
channel: INTEGER;
BEGIN
FOR channel := 0 TO kMaxChannels - 1 DO
FreeObject (fBuffer [channel]);
INHERITED Free
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TBufferCommand.SwapAllChannels;
VAR
save: TVMArray;
channel: INTEGER;
BEGIN
FOR channel := 0 TO fDoc.fChannels - 1 DO
BEGIN
save := fBuffer [channel];
fBuffer [channel] := fDoc.fData [channel];
fDoc.fData [channel] := save
END
END;
{*****************************************************************************}
{$S ASelCommand}
PROCEDURE TFloatCommand.IFloatCommand (itsCommand: INTEGER;
view: TImageView);
VAR
channel: INTEGER;
BEGIN
fSwapMask := FALSE;
fFloatMask := NIL;
FOR channel := 0 TO 2 DO
BEGIN
fFloatData [channel] := NIL;
fFloatBelow [channel] := NIL
END;
IBufferCommand (itsCommand, view);
fWasFloating := fDoc.fSelectionFloating AND
NOT fDoc.fExactFloat AND
(fDoc.fFloatChannel = view.fChannel);
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.Free; OVERRIDE;
VAR
channel: INTEGER;
BEGIN
FreeObject (fFloatMask);
FOR channel := 0 TO 2 DO
BEGIN
FreeObject (fFloatData [channel]);
FreeObject (fFloatBelow [channel])
END;
IF fDoc.fFloatCommand = SELF THEN
BEGIN
fDoc.fFloatCommand := NIL;
IF NOT fDoc.fSelectionFloating OR fDoc.fExactFloat THEN
fDoc.FreeFloat
END;
INHERITED Free
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.SwapFloat;
VAR
saveRect: Rect;
channel: INTEGER;
saveExact: BOOLEAN;
saveArray: TVMArray;
BEGIN
saveExact := fDoc.fExactFloat;
fDoc.fExactFloat := fExactFloat;
fExactFloat := saveExact;
saveRect := fDoc.fFloatRect;
fDoc.fFloatRect := fFloatRect;
fFloatRect := saveRect;
IF (fFloatMask <> NIL) OR fSwapMask THEN
BEGIN
saveArray := fDoc.fFloatMask;
fDoc.fFloatMask := fFloatMask;
fFloatMask := saveArray
END;
FOR channel := 0 TO 2 DO
BEGIN
IF fFloatData [channel] <> NIL THEN
BEGIN
saveArray := fDoc.fFloatData [channel];
fDoc.fFloatData [channel] := fFloatData [channel];
fFloatData [channel] := saveArray
END;
IF fFloatBelow [channel] <> NIL THEN
BEGIN
saveArray := fDoc.fFloatBelow [channel];
fDoc.fFloatBelow [channel] := fFloatBelow [channel];
fFloatBelow [channel] := saveArray
END
END
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.MakeMapLegal (VAR map: TLookUpTable);
VAR
gray: INTEGER;
BEGIN
IF fDoc.fMode = IndexedColorMode THEN
FOR gray := 0 TO 255 DO
IF ORD (map [gray]) >= 128 THEN
map [gray] := CHR (255)
ELSE
map [gray] := CHR (0)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.FloatSelection (duplicate: BOOLEAN);
VAR
r: Rect;
fi: FailInfo;
row: INTEGER;
page: INTEGER;
width: INTEGER;
height: INTEGER;
channel: INTEGER;
map: TLookUpTable;
channels: INTEGER;
aVMArray: TVMArray;
bVMArray: TVMArray;
cVMArray: TVMArray;
PROCEDURE CleanUp (error: INTEGER; message: LONGINT);
BEGIN
fDoc.FreeFloat
END;
BEGIN
IF fWasFloating THEN
BEGIN
fDoc.fFloatCommand := SELF;
EXIT (FloatSelection)
END;
fDoc.FreeFloat;
CatchFailures (fi, CleanUp);
r := fDoc.fSelectionRect;
width := r.right - r.left;
height := r.bottom - r.top;
fDoc.fSelectionFloating := TRUE;
fDoc.fExactFloat := NOT duplicate;
fDoc.fFloatCommand := SELF;
fDoc.fFloatChannel := fView.fChannel;
fDoc.fFloatRect := r;
IF fDoc.fSelectionMask <> NIL THEN
BEGIN
aVMArray := fDoc.fSelectionMask.CopyArray (1);
fDoc.fFloatMask := aVMArray
END;
IF fDoc.fFloatChannel = kRGBChannels THEN
channels := 3
ELSE
channels := 1;
FOR channel := 0 TO channels - 1 DO
BEGIN
aVMArray := NewVMArray (height, width, 1);
fDoc.fFloatBelow [channel] := aVMArray
END;
FOR channel := 0 TO channels - 1 DO
BEGIN
IF channels = 3 THEN
aVMArray := fDoc.fData [channel] .
CopyRect (r, channels - channel)
ELSE
aVMArray := fDoc.fData [fDoc.fFloatChannel] .
CopyRect (r, channels - channel);
fDoc.fFloatData [channel] := aVMArray;
bVMArray := fDoc.fFloatBelow [channel];
IF duplicate THEN
aVMArray.MoveArray (bVMArray)
ELSE
BEGIN
bVMArray.SetBytes (fView.BackgroundByte (channel));
cVMArray := fDoc.fFloatMask;
IF cVMArray <> NIL THEN
BEGIN
map := gInvertLUT;
MakeMapLegal (map);
FOR row := 0 TO height - 1 DO
BEGIN
BlockMove (cVMArray.NeedPtr (row, row, FALSE),
gBuffer,
width);
DoMapBytes (gBuffer, width, map);
DoBlendBelow (gBuffer,
aVMArray.NeedPtr (row, row, FALSE),
bVMArray.NeedPtr (row, row, TRUE),
width,
0,
-1);
aVMArray.DoneWithPtr;
bVMArray.DoneWithPtr;
cVMArray.DoneWithPtr
END;
aVMArray.Flush;
bVMArray.Flush;
cVMArray.Flush
END
END
END;
Success (fi)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.ComputeOverlap (VAR r: Rect);
BEGIN
r := fDoc.fFloatRect;
fDoc.SectBoundsRect (r)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.CopyOverlapArea (into: BOOLEAN;
buffer: TVMArray;
image: TVMArray);
VAR
r1: Rect;
r2: Rect;
BEGIN
IF into THEN
buffer.Undefine
ELSE
buffer.Preload (2);
ComputeOverlap (r1);
r2 := r1;
OffsetRect (r2, -fDoc.fFloatRect.left, -fDoc.fFloatRect.top);
IF into THEN
image.MoveRect (buffer, r1, r2)
ELSE
buffer.MoveRect (image, r2, r1)
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.CopyOverlapAreas (into: BOOLEAN;
buffer0: TVMArray;
buffer1: TVMArray;
buffer2: TVMArray);
BEGIN
IF fDoc.fFloatChannel = kRGBChannels THEN
BEGIN
CopyOverlapArea (into, buffer0, fDoc.fData [0]);
CopyOverlapArea (into, buffer1, fDoc.fData [1]);
CopyOverlapArea (into, buffer2, fDoc.fData [2])
END
ELSE
CopyOverlapArea (into, buffer0, fDoc.fData [fDoc.fFloatChannel])
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE TFloatCommand.CopyBelow (into: BOOLEAN);
BEGIN
CopyOverlapAreas (into, fDoc.fFloatBelow [0],
fDoc.fFloatBelow [1],
fDoc.fFloatBelow [2])
END;
{*****************************************************************************}
{$S ADoCommand}
PROCEDURE GetPasteControls (doc: TImageDocument;
VAR controls: TPasteControls);
VAR
band: INTEGER;
BEGIN
IF doc.fPasteControls <> NIL THEN
controls := HPasteControls (doc.fPasteControls)^^
ELSE
WITH controls DO
BEGIN
FOR band := 0 TO 3 DO
BEGIN
fSrcMin [band] := 0;
fSrcMax [band] := 255;
fDstMin [band] := 0;
fDstMax [band] := 255
END;
fMode := PasteNormal;
fBlend := 100;
fFuzz := 0;
fMat := -1
END
END;
{*****************************************************************************}
{$S ADoCommand}
FUNCTION BuildMaskLUT (VAR map: TLookUpTable;
lower: INTEGER;
upper: INTEGER;
fuzz: INTEGER): BOOLEAN;
VAR
g1: INTEGER;
g2: INTEGER;
g3: INTEGER;
gap: INTEGER;
gray: INTEGER;
ignore: BOOLEAN;
BEGIN
IF upper >= lower THEN
BEGIN
DoSetBytes (@map, 256, 255);
gap := fuzz + 1;
IF lower <> 0 THEN
BEGIN
g1 := lower - BSR (gap + 1, 1);
g2 := lower + BSR (gap , 1);
FOR gray := 0 TO g2 - 1 DO
IF gray <= g1 THEN
map [gray] := CHR (0)