--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ST80FormReader.st Sat Dec 11 02:38:34 1993 +0100
@@ -0,0 +1,134 @@
+"
+ COPYRIGHT (c) 1993 by Claus Gittinger
+ All Rights Reserved
+
+ This software is furnished under a license and may be used
+ only in accordance with the terms of that license and with the
+ inclusion of the above copyright notice. This software may not
+ be provided or otherwise made available to, or used by, any
+ other person. No title to or ownership of the software is
+ hereby transferred.
+"
+
+ImageReader subclass:#ST80FormReader
+ instanceVariableNames:''
+ classVariableNames:''
+ poolDictionaries:''
+ category:'Graphics-Support'
+!
+
+ST80FormReader comment:'
+
+COPYRIGHT (c) 1993 by Claus Gittinger
+ All Rights Reserved
+
+this class provides methods for loading and saving st80-bitmap-file images.
+
+$Header: /cvs/stx/stx/libview2/ST80FormReader.st,v 1.1 1993-12-11 01:38:34 claus Exp $
+written Nov 93 by claus
+'!
+
+!ST80FormReader methodsFor:'writing to file'!
+
+save:image onFile:aFileName
+ "save image as XBM file on aFileName"
+
+ |reverseBits bits srcIndex rowBytes|
+
+ outStream := FileStream newFileNamed:aFileName.
+ outStream isNil ifTrue:[
+ 'create error' printNewline.
+ ^ nil
+ ].
+
+ width := image width.
+ height := image height.
+ photometric := image photometric.
+ samplesPerPixel := image samplesPerPixel.
+ bitsPerSample := image bitsPerSample.
+ colorMap := image colorMap.
+
+ ((samplesPerPixel ~~ 1)
+ or:[((bitsPerSample at:1) ~~ 1)
+ or:[(photometric ~~ #blackIs0) and:[photometric ~~ #whiteIs0]]]) ifTrue:[
+ self error:'can only save Depth1Images'.
+ outStream close.
+ ^ nil.
+ ].
+
+ outStream binary.
+ outStream nextPutWord:1.
+ outStream nextPutWord:width.
+ outStream nextPutWord:height.
+ outStream nextPutWord:0.
+ outStream nextPutWord:0.
+ outStream nextPutBytes:(data size) from:data.
+
+ outStream close
+
+ "ST80FormReader save:(Image fromFile:'bitmaps/SBrowser.xbm') onFile:'test.form'"
+! !
+
+!ST80FormReader class methodsFor:'testing'!
+
+isValidImageFile:aFileName
+ "return true, if aFileName contains an st80-bitmap-file image"
+
+ |line inStream index1 index2 keyword|
+
+ inStream := FileStream readonlyFileNamed:aFileName.
+ inStream isNil ifTrue:[^ false].
+
+ inStream binary.
+ code := inStream nextWord.
+ code == 1 ifFalse:[
+ inStream close.
+ ^ false
+ ].
+ inStream close.
+ ^ true
+! !
+
+!ST80FormReader methodsFor:'reading from file'!
+
+fromFile:aFileName
+ |code
+ offsetX offsetY
+ index "{ Class: SmallInteger }"
+ dstIndex "{ Class: SmallInteger }"
+ bytesPerRow
+ lo "{ Class: SmallInteger }"
+ hi "{ Class: SmallInteger }"
+ val "{ Class: SmallInteger }"
+ reverseBits|
+
+ inStream := FileStream readonlyFileNamed:aFileName.
+ inStream isNil ifTrue:[
+ 'open error' printNewline.
+ ^ nil
+ ].
+
+ inStream binary.
+ code := inStream nextWord.
+ code isNil ifTrue:[
+ inStream close.
+ ^ nil
+ ].
+
+ width := inStream nextWord.
+ height := inStream nextWord.
+ offsetX := inStream nextWord.
+ offsetY := inStream nextWord.
+
+ nBytes := width + 15 // 16 * 2 * height.
+ data := ByteArray new:nBytes.
+ inStream nextBytes:nBytes.
+
+ inStream close.
+
+ photometric := #whiteIs0.
+ samplesPerPixel := 1.
+ bitsPerSample := #(1)
+
+ "ST80FormReader fromFile:''"
+! !
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/STFormRdr.st Sat Dec 11 02:38:34 1993 +0100
@@ -0,0 +1,134 @@
+"
+ COPYRIGHT (c) 1993 by Claus Gittinger
+ All Rights Reserved
+
+ This software is furnished under a license and may be used
+ only in accordance with the terms of that license and with the
+ inclusion of the above copyright notice. This software may not
+ be provided or otherwise made available to, or used by, any
+ other person. No title to or ownership of the software is
+ hereby transferred.
+"
+
+ImageReader subclass:#ST80FormReader
+ instanceVariableNames:''
+ classVariableNames:''
+ poolDictionaries:''
+ category:'Graphics-Support'
+!
+
+ST80FormReader comment:'
+
+COPYRIGHT (c) 1993 by Claus Gittinger
+ All Rights Reserved
+
+this class provides methods for loading and saving st80-bitmap-file images.
+
+$Header: /cvs/stx/stx/libview2/Attic/STFormRdr.st,v 1.1 1993-12-11 01:38:34 claus Exp $
+written Nov 93 by claus
+'!
+
+!ST80FormReader methodsFor:'writing to file'!
+
+save:image onFile:aFileName
+ "save image as XBM file on aFileName"
+
+ |reverseBits bits srcIndex rowBytes|
+
+ outStream := FileStream newFileNamed:aFileName.
+ outStream isNil ifTrue:[
+ 'create error' printNewline.
+ ^ nil
+ ].
+
+ width := image width.
+ height := image height.
+ photometric := image photometric.
+ samplesPerPixel := image samplesPerPixel.
+ bitsPerSample := image bitsPerSample.
+ colorMap := image colorMap.
+
+ ((samplesPerPixel ~~ 1)
+ or:[((bitsPerSample at:1) ~~ 1)
+ or:[(photometric ~~ #blackIs0) and:[photometric ~~ #whiteIs0]]]) ifTrue:[
+ self error:'can only save Depth1Images'.
+ outStream close.
+ ^ nil.
+ ].
+
+ outStream binary.
+ outStream nextPutWord:1.
+ outStream nextPutWord:width.
+ outStream nextPutWord:height.
+ outStream nextPutWord:0.
+ outStream nextPutWord:0.
+ outStream nextPutBytes:(data size) from:data.
+
+ outStream close
+
+ "ST80FormReader save:(Image fromFile:'bitmaps/SBrowser.xbm') onFile:'test.form'"
+! !
+
+!ST80FormReader class methodsFor:'testing'!
+
+isValidImageFile:aFileName
+ "return true, if aFileName contains an st80-bitmap-file image"
+
+ |line inStream index1 index2 keyword|
+
+ inStream := FileStream readonlyFileNamed:aFileName.
+ inStream isNil ifTrue:[^ false].
+
+ inStream binary.
+ code := inStream nextWord.
+ code == 1 ifFalse:[
+ inStream close.
+ ^ false
+ ].
+ inStream close.
+ ^ true
+! !
+
+!ST80FormReader methodsFor:'reading from file'!
+
+fromFile:aFileName
+ |code
+ offsetX offsetY
+ index "{ Class: SmallInteger }"
+ dstIndex "{ Class: SmallInteger }"
+ bytesPerRow
+ lo "{ Class: SmallInteger }"
+ hi "{ Class: SmallInteger }"
+ val "{ Class: SmallInteger }"
+ reverseBits|
+
+ inStream := FileStream readonlyFileNamed:aFileName.
+ inStream isNil ifTrue:[
+ 'open error' printNewline.
+ ^ nil
+ ].
+
+ inStream binary.
+ code := inStream nextWord.
+ code isNil ifTrue:[
+ inStream close.
+ ^ nil
+ ].
+
+ width := inStream nextWord.
+ height := inStream nextWord.
+ offsetX := inStream nextWord.
+ offsetY := inStream nextWord.
+
+ nBytes := width + 15 // 16 * 2 * height.
+ data := ByteArray new:nBytes.
+ inStream nextBytes:nBytes.
+
+ inStream close.
+
+ photometric := #whiteIs0.
+ samplesPerPixel := 1.
+ bitsPerSample := #(1)
+
+ "ST80FormReader fromFile:''"
+! !