author | Claus Gittinger <cg@exept.de> |
Thu, 01 Oct 1998 12:50:21 +0200 | |
changeset 1078 | fc33e172bbbc |
parent 1064 | 27f923c3b93d |
child 1082 | 9b629fdac9ec |
permissions | -rw-r--r-- |
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1 |
" |
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2 |
COPYRIGHT (c) 1992 by Claus Gittinger |
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3 |
All Rights Reserved |
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4 |
|
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5 |
This software is furnished under a license and may be used |
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6 |
only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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8 |
be provided or otherwise made available to, or used by, any |
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9 |
other person. No title to or ownership of the software is |
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10 |
hereby transferred. |
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" |
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2 | 13 |
|
14 |
ImageReader subclass:#PBMReader |
|
200 | 15 |
instanceVariableNames:'' |
16 |
classVariableNames:'' |
|
17 |
poolDictionaries:'' |
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259 | 18 |
category:'Graphics-Images-Support' |
2 | 19 |
! |
20 |
||
21 | 21 |
!PBMReader class methodsFor:'documentation'! |
22 |
||
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23 |
copyright |
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24 |
" |
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25 |
COPYRIGHT (c) 1992 by Claus Gittinger |
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26 |
All Rights Reserved |
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27 |
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This software is furnished under a license and may be used |
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29 |
only in accordance with the terms of that license and with the |
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30 |
inclusion of the above copyright notice. This software may not |
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31 |
be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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35 |
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! |
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37 |
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21 | 38 |
documentation |
39 |
" |
|
32 | 40 |
this class provides methods for loading and saving Portable BitMap-file |
41 |
images (Jef Poskanzers portable bitmap package). |
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200 | 42 |
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46 | 43 |
Reading is supported for 1bit (pbm), greyscale (pgm) and 24bit (ppm) formats. |
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(i.e. P1, P3, P4, P5, P6 and P7 formats) |
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|
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Writing is (currently) only supported for the binary formats; |
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i.e. 1-bit images as (pbm P4), 8-bit gray as (pgm P5) and 24-bit images as (pnm P6). |
46 | 48 |
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Q: should we broil this one to perfection and base all others on |
46 | 50 |
pipe-readers to the various pbmplus converters ? |
200 | 51 |
|
52 |
[See also:] |
|
234 | 53 |
Image Form Icon |
200 | 54 |
BlitImageReader FaceReader GIFReader JPEGReader PCXReader |
210 | 55 |
ST80FormReader SunRasterReader TargaReader TIFFReader WindowsIconReader |
209 | 56 |
XBMReader XPMReader XWDReader |
21 | 57 |
" |
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! ! |
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!PBMReader class methodsFor:'initialization'! |
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initialize |
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"install myself in the Image classes fileFormat table |
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for the `.pbm', '.pgm' and '.pnm' extensions." |
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MIMETypes defineImageType:'image/x-portable-bitmap' suffix:'pbm' reader:self. |
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MIMETypes defineImageType:'image/x-portable-graymap' suffix:'pgm' reader:self. |
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MIMETypes defineImageType:'image/x-portable-anymap' suffix:'pnm' reader:self. |
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MIMETypes defineImageType:'image/x-portable-pixmap' suffix:'ppm' reader:self. |
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"Modified: / 1.2.1997 / 15:02:14 / cg" |
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"Created: / 3.2.1998 / 17:19:59 / cg" |
21 | 73 |
! ! |
2 | 74 |
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713 | 75 |
!PBMReader class methodsFor:'testing'! |
76 |
||
77 |
canRepresent:anImage |
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"return true, if anImage can be represented in my file format. |
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Currently, only 1bit B&W, 8bit-grey and 24bit RGB images are supported." |
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|depth photometric| |
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82 |
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anImage photometric == #rgb ifTrue:[ |
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^ depth==24 |
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]. |
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(depth := anImage depth) == 1 ifTrue:[^ true]. |
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depth == 8 ifTrue:[ |
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photometric := anImage photometric. |
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^ (photometric == #blackIs0) or:[photometric == #whiteIs0] |
|
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]. |
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^ false |
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92 |
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"Modified: 17.10.1997 / 20:20:52 / cg" |
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! |
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95 |
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isValidImageFile:aFileName |
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"return true, if aFileName contains a PBM image (which I can read)" |
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98 |
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|inStream pnmType| |
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100 |
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inStream := self streamReadingFile:aFileName. |
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inStream isNil ifTrue:[^ false]. |
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inStream text. |
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inStream next ~~ $P ifTrue:[^ false]. |
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105 |
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pnmType := inStream next. |
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(#( $1 $3 $4 $5 $6 $7) includes:pnmType) ifFalse:[^ false]. |
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^ true |
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109 |
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"Created: / 3.2.1998 / 17:29:07 / cg" |
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"Modified: / 7.9.1998 / 15:40:47 / cg" |
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! ! |
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113 |
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!PBMReader methodsFor:'private'! |
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115 |
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skipPBMJunkOn:aStream |
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"this method removes any superfluous characters from the input stream." |
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118 |
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| char foundNL| |
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120 |
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[ |
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char := aStream peek. |
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[char == $#] whileTrue:[ |
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"Start of a comment. Skip to end-of-line." |
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"/ foundNL := (aStream skipUpTo: Character cr) notNil. |
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foundNL := (aStream skipThrough: Character cr) notNil. |
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foundNL ifFalse: [ |
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128 |
"Must be EOF" |
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^self |
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130 |
]. |
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char := aStream peek |
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132 |
]. |
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aStream atEnd not and: [char isSeparator] |
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] whileTrue: [aStream next] |
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135 |
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"Created: / 3.2.1998 / 17:20:37 / cg" |
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"Modified: / 7.9.1998 / 15:49:07 / cg" |
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138 |
! |
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139 |
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skipXPMJunkOn:aStream |
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141 |
"this method removes any superfluous characters from the input stream." |
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142 |
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143 |
| char | |
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144 |
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145 |
[ |
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146 |
char := aStream peek. |
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147 |
aStream atEnd not and: [char isSeparator not] |
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148 |
] whileTrue: [aStream next]. |
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149 |
|
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150 |
[aStream atEnd not and: [char isSeparator]] whileTrue: [ |
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151 |
aStream next. char := aStream peek |
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152 |
]. |
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153 |
aStream atEnd ifTrue: [^char]. |
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154 |
(char isDigit) ifTrue: [ ^char ]. |
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155 |
(char == $") ifTrue: [ |
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156 |
aStream next. |
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157 |
char := aStream peek. |
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158 |
(char isLetterOrDigit |
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159 |
or: [(char == $#) |
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160 |
or: [char == Character space]]) ifFalse:[ |
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161 |
^ self skipXPMJunkOn: aStream |
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162 |
] ifTrue: [^char] |
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163 |
]. |
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164 |
|
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165 |
|
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166 |
^self skipXPMJunkOn: aStream. |
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167 |
|
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168 |
"Created: / 3.2.1998 / 17:20:54 / cg" |
713 | 169 |
! ! |
170 |
||
200 | 171 |
!PBMReader methodsFor:'reading from file'! |
172 |
||
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173 |
fromStream:aStream |
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174 |
"read a Portable bitmap file format as of Jeff Poskanzers Portable Bitmap Package. |
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175 |
supported are PBM, PGB and PNM files." |
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176 |
|
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177 |
| pnmType | |
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178 |
|
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179 |
inStream := aStream. |
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180 |
inStream text. |
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181 |
|
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182 |
inStream next == $P ifFalse:[ |
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183 |
^ self fileFormatError:'not PNM format'. |
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184 |
]. |
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185 |
pnmType := inStream next. |
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186 |
|
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187 |
(pnmType == $1) ifTrue: [ |
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188 |
^ self readDepth1AsciiPBMStream:aStream |
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189 |
]. |
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190 |
(pnmType == $3) ifTrue: [ |
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191 |
^ self readDepth24AsciiPBMStream:aStream |
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192 |
]. |
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193 |
(pnmType == $4) ifTrue: [ |
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194 |
^ self readDepth1PBMStream:aStream |
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195 |
]. |
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196 |
(pnmType == $5) ifTrue: [ |
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197 |
^ self readDepth8PGMStream:aStream |
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198 |
]. |
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199 |
(pnmType == $6) ifTrue: [ |
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200 |
^ self readDepth24PPMStream:aStream |
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201 |
]. |
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202 |
(pnmType == $7) ifTrue: [ |
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203 |
^ self readDepth8PPMStream:aStream |
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204 |
]. |
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205 |
^ self fileFormatError:'No recognized PNM file format'. |
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206 |
|
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207 |
" |
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208 |
PBMReader fromFile:'bitmaps/testimg.ppm' |
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209 |
PBMReader fromFile:'../../fileIn/bitmaps/keyboard.pbm' |
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210 |
PBMReader fromFile:'/home2/cg/ppm2fli_b1-92/jeff.001' |
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211 |
" |
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212 |
|
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213 |
"Created: / 3.2.1998 / 17:25:34 / cg" |
1064
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214 |
"Modified: / 7.9.1998 / 15:44:29 / cg" |
807
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215 |
! |
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|
216 |
|
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217 |
readDepth1AsciiPBMStream:aStream |
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218 |
"import portable bitmap ascii (PBM, P1 format); P1 is already read" |
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219 |
|
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220 |
|n bits rowIdx dstIdx bytesPerRow char| |
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221 |
|
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|
222 |
self skipPBMJunkOn:aStream. |
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|
223 |
width := Integer readFrom:aStream. |
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|
224 |
width > 0 ifFalse: [ |
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|
225 |
^ self fileFormatError:'Invalid width'. |
807
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226 |
]. |
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227 |
|
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228 |
self skipPBMJunkOn:aStream. |
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|
229 |
height := Integer readFrom:aStream. |
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|
230 |
height > 0 ifFalse: [ |
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|
231 |
^ self fileFormatError:'Invalid height'. |
807
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232 |
]. |
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|
233 |
|
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234 |
aStream nextLine "skipThrough: Character cr". |
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|
235 |
|
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|
236 |
bytesPerRow := (width + 7) // 8. |
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|
237 |
data := ByteArray new:bytesPerRow * height. |
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|
238 |
rowIdx := 1. |
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|
239 |
|
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|
240 |
1 to:height do:[:row | |
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|
241 |
dstIdx := rowIdx. |
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|
242 |
bits := 0. n := 0. |
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|
243 |
1 to:width do:[:col | |
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|
244 |
char := aStream next. |
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245 |
[char notNil and:[char isSeparator]] whileTrue:[ |
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|
246 |
char := aStream next |
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247 |
]. |
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|
248 |
bits := bits bitShift:1. |
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|
249 |
char == $1 ifTrue:[ |
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|
250 |
bits := bits bitOr:1 |
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251 |
]. |
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|
252 |
n := n + 1. |
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|
253 |
n == 8 ifTrue:[ |
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|
254 |
data at:dstIdx put:bits. |
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|
255 |
dstIdx := dstIdx + 1. |
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|
256 |
bits := 0. |
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|
257 |
n := 0. |
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|
258 |
]. |
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|
259 |
]. |
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|
260 |
n ~~ 0 ifTrue:[ |
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|
261 |
data at:dstIdx put:bits. |
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|
262 |
]. |
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|
263 |
rowIdx := rowIdx + bytesPerRow |
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|
264 |
]. |
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|
265 |
|
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|
266 |
photometric := #whiteIs0. |
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|
267 |
samplesPerPixel := 1. |
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|
268 |
bitsPerSample := #(1). |
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|
269 |
|
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|
270 |
"Created: / 3.2.1998 / 17:21:22 / cg" |
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|
271 |
"Modified: / 3.2.1998 / 17:56:32 / cg" |
807
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|
272 |
! |
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|
273 |
|
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|
274 |
readDepth1PBMStream:aStream |
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|
275 |
"import portable bitmap (PBM, P4 format); P4 is already read" |
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|
276 |
|
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|
277 |
|bytesPerRow| |
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|
278 |
|
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|
279 |
self skipPBMJunkOn:aStream. |
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|
280 |
width := Integer readFrom:aStream onError:0. |
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|
281 |
width > 0 ifFalse: [ |
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|
282 |
^ self fileFormatError:'Invalid width'. |
807
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|
283 |
]. |
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|
284 |
|
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|
285 |
self skipPBMJunkOn:aStream. |
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|
286 |
height := Integer readFrom:aStream onError:0. |
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|
287 |
height > 0 ifFalse: [ |
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|
288 |
^ self fileFormatError:'Invalid height'. |
807
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|
289 |
]. |
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|
290 |
|
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|
291 |
aStream nextLine "skipThrough: Character cr". |
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|
292 |
|
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|
293 |
bytesPerRow := width // 8. |
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|
294 |
((width \\ 8) ~~ 0) ifTrue:[ |
855f41b1ec1a
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|
295 |
bytesPerRow := bytesPerRow + 1 |
855f41b1ec1a
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|
296 |
]. |
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changeset
|
297 |
|
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|
298 |
"/ the rest is the binary image data ... |
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|
299 |
aStream binary. |
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|
300 |
data := ByteArray uninitializedNew:(bytesPerRow*height). |
855f41b1ec1a
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|
301 |
aStream nextBytes:(data size) into:data. |
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|
302 |
|
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|
303 |
photometric := #blackIs0. |
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|
304 |
samplesPerPixel := 1. |
855f41b1ec1a
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changeset
|
305 |
bitsPerSample := #(1). |
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changeset
|
306 |
|
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changeset
|
307 |
"Created: / 3.2.1998 / 17:21:37 / cg" |
811
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changeset
|
308 |
"Modified: / 3.2.1998 / 17:56:59 / cg" |
807
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changeset
|
309 |
! |
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changeset
|
310 |
|
855f41b1ec1a
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changeset
|
311 |
readDepth24AsciiPBMStream:aStream |
855f41b1ec1a
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changeset
|
312 |
"import ascii portable pixmap (PBM, P3 format); P3 is already read" |
855f41b1ec1a
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changeset
|
313 |
|
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changeset
|
314 |
|maxval |
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changeset
|
315 |
nBytes "{Class: SmallInteger }" |
855f41b1ec1a
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|
316 |
v "{Class: SmallInteger }" |
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changeset
|
317 |
c| |
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changeset
|
318 |
|
855f41b1ec1a
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parents:
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diff
changeset
|
319 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
320 |
width := Integer readFrom:aStream. |
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
321 |
width > 0 ifFalse: [ |
811
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diff
changeset
|
322 |
^ self fileFormatError:'Invalid width'. |
807
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
323 |
]. |
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
324 |
|
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
325 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
326 |
height := Integer readFrom:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
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parents:
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diff
changeset
|
327 |
height > 0 ifFalse: [ |
811
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Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
328 |
^ self fileFormatError:'Invalid height'. |
807
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
329 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
330 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
331 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
332 |
maxval := Integer readFrom:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
333 |
maxval >= 256 ifTrue: [ |
811
86a93acb3be7
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
334 |
^ self fileFormatError:'Invalid format'. |
807
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
335 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
336 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
337 |
aStream skipThrough: Character cr. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
338 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
339 |
nBytes := width*height*3. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
340 |
data := ByteArray new:nBytes. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
341 |
1 to:nBytes do:[:i | |
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
342 |
aStream skipSeparators. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
343 |
v := 0. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
344 |
c := aStream next. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
345 |
[c isDigit] whileTrue:[ |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
346 |
v := v * 10 + (c digitValue). |
855f41b1ec1a
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Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
347 |
c := aStream next. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
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diff
changeset
|
348 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
349 |
data at:i put:v |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
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diff
changeset
|
350 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
351 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
352 |
photometric := #rgb. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
353 |
samplesPerPixel := 3. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
354 |
bitsPerSample := #(8 8 8). |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
355 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
356 |
"Created: / 3.2.1998 / 17:21:55 / cg" |
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
357 |
"Modified: / 3.2.1998 / 17:57:30 / cg" |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
358 |
! |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
359 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
360 |
readDepth24PPMStream:aStream |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
361 |
"import portable pixmap (PPM, P6 format); P6 is already read" |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
362 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
363 |
| maxval | |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
364 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
365 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
366 |
width := Integer readFrom:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
367 |
width > 0 ifFalse: [ |
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
368 |
^ self fileFormatError:'Invalid width'. |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
369 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
370 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
371 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
372 |
height := Integer readFrom:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
373 |
height > 0 ifFalse: [ |
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
374 |
^ self fileFormatError:'Invalid height'. |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
375 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
376 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
377 |
self skipPBMJunkOn:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
378 |
maxval := Integer readFrom:aStream. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
379 |
maxval >= 256 ifTrue: [ |
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
380 |
^ self fileFormatError:'Invalid format'. |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
381 |
]. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
382 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
383 |
aStream skipThrough: Character cr. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
384 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
385 |
"/ the rest is the binary image data ... |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
386 |
aStream binary. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
387 |
data := ByteArray uninitializedNew:(width*height*3). |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
388 |
aStream nextBytes:(data size) into:data. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
389 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
390 |
photometric := #rgb. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
391 |
samplesPerPixel := 3. |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
392 |
bitsPerSample := #(8 8 8). |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
393 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
394 |
"Created: / 3.2.1998 / 17:22:18 / cg" |
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
395 |
"Modified: / 3.2.1998 / 17:57:26 / cg" |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
396 |
! |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
397 |
|
200 | 398 |
readDepth8PGMStream:aStream |
506 | 399 |
"import portable gray map (PGM, P5 format); P5 is already read" |
200 | 400 |
|
401 |
|maxval| |
|
402 |
||
403 |
self skipPBMJunkOn:aStream. |
|
404 |
width := Integer readFrom:aStream. |
|
405 |
width > 0 ifFalse:[ |
|
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
406 |
^ self fileFormatError:'Invalid width'. |
200 | 407 |
]. |
408 |
self skipPBMJunkOn:aStream. |
|
409 |
height := Integer readFrom:aStream. |
|
410 |
height > 0 ifFalse:[ |
|
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
411 |
^ self fileFormatError:'Invalid height'. |
200 | 412 |
]. |
413 |
self skipPBMJunkOn:aStream. |
|
414 |
maxval := Integer readFrom:aStream. |
|
415 |
maxval >= 256 ifTrue:[ |
|
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
416 |
^ self fileFormatError:'Invalid format'. |
200 | 417 |
]. |
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
418 |
aStream nextLine "skipThrough: Character cr". |
523 | 419 |
|
420 |
"/ the rest is the binary image data ... |
|
200 | 421 |
aStream binary. |
523 | 422 |
data := ByteArray uninitializedNew:(width*height). |
423 |
aStream nextBytes:(data size) into:data. |
|
200 | 424 |
|
425 |
photometric := #blackIs0. |
|
426 |
samplesPerPixel := 1. |
|
427 |
bitsPerSample := #(8). |
|
506 | 428 |
|
811
86a93acb3be7
use common fileFormatError reporter
Claus Gittinger <cg@exept.de>
parents:
807
diff
changeset
|
429 |
"Modified: / 3.2.1998 / 17:57:21 / cg" |
1064
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
430 |
! |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
431 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
432 |
readDepth8PPMStream:aStream |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
433 |
"import portable pixmap (PPM, P7 format); P7 is already read" |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
434 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
435 |
| maxval bitsRed bitsGreen bitsBlue| |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
436 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
437 |
aStream skipSeparators. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
438 |
bitsRed := aStream next - $0. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
439 |
bitsGreen := aStream next - $0. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
440 |
bitsBlue := aStream next - $0. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
441 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
442 |
self skipPBMJunkOn:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
443 |
width := Integer readFrom:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
444 |
width > 0 ifFalse: [ |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
445 |
^ self fileFormatError:'Invalid width'. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
446 |
]. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
447 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
448 |
self skipPBMJunkOn:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
449 |
height := Integer readFrom:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
450 |
height > 0 ifFalse: [ |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
451 |
^ self fileFormatError:'Invalid height'. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
452 |
]. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
453 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
454 |
self skipPBMJunkOn:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
455 |
maxval := Integer readFrom:aStream. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
456 |
maxval >= 256 ifTrue: [ |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
457 |
^ self fileFormatError:'Invalid format'. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
458 |
]. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
459 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
460 |
aStream skipThrough: Character cr. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
461 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
462 |
"/ the rest is the binary image data ... |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
463 |
aStream binary. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
464 |
data := ByteArray uninitializedNew:(width*height*1). |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
465 |
aStream nextBytes:(data size) into:data. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
466 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
467 |
photometric := #rgb. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
468 |
samplesPerPixel := 3. |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
469 |
bitsPerSample := (Array with:bitsRed with:bitsGreen with:bitsBlue). |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
470 |
|
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
471 |
"Created: / 7.9.1998 / 15:44:05 / cg" |
27f923c3b93d
added P7 format support (8bit rgb).
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
472 |
"Modified: / 7.9.1998 / 15:50:36 / cg" |
200 | 473 |
! ! |
474 |
||
2 | 475 |
!PBMReader methodsFor:'writing to file'! |
476 |
||
477 |
save:image onFile:aFileName |
|
478 |
"save image as PBM/PGM/PNM file on aFileName" |
|
479 |
||
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
480 |
|bitsPerPixel| |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
481 |
|
1078
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
482 |
image mask notNil ifTrue:[ |
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
483 |
Image informationLostQuerySignal |
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
484 |
raiseWith:image |
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
485 |
errorString:('PBM format does not support an imageMask'). |
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
486 |
]. |
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
487 |
|
2 | 488 |
outStream := FileStream newFileNamed:aFileName. |
489 |
outStream isNil ifTrue:[ |
|
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
490 |
'PBMReader [error]: file create error' errorPrintNL. |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
491 |
^ Image fileCreationErrorSignal |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
492 |
raiseWith:image |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
493 |
errorString:('file creation error: ' , aFileName asString). |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
494 |
]. |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
495 |
|
2 | 496 |
width := image width. |
497 |
height := image height. |
|
498 |
photometric := image photometric. |
|
499 |
samplesPerPixel := image samplesPerPixel. |
|
500 |
bitsPerSample := image bitsPerSample. |
|
501 |
colorMap := image colorMap. |
|
46 | 502 |
data := image bits. |
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
503 |
bitsPerPixel := image bitsPerPixel. |
2 | 504 |
|
505 |
photometric == #rgb ifTrue:[ |
|
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
506 |
^ self writePNMFileOn:outStream |
2 | 507 |
]. |
508 |
samplesPerPixel == 1 ifTrue:[ |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
509 |
(bitsPerPixel == 1) ifTrue:[ |
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
510 |
^ self writePBMFileOn:outStream |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
511 |
]. |
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
512 |
(bitsPerPixel == 8) ifTrue:[ |
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
513 |
^ self writePGMFileOn:outStream |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
514 |
]. |
2 | 515 |
]. |
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
516 |
^ Image cannotRepresentImageSignal |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
517 |
raiseWith:image |
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
518 |
errorString:('PBMReader cannot represent this image'). |
46 | 519 |
|
520 |
" |
|
521 |
|img| |
|
522 |
||
523 |
img := Image fromFile:'bitmaps/SBrowser.xbm'. |
|
524 |
img inspect. |
|
525 |
PBMReader save:img onFile:'test.pbm'. |
|
526 |
img := Image fromFile:'test.pbm'. |
|
527 |
img inspect. |
|
528 |
||
529 |
||
530 |
|img mono| |
|
531 |
||
532 |
img := Image fromFile:'bitmaps/garfield.gif'. |
|
533 |
img inspect. |
|
534 |
mono := img asMonochromeFormOn:Display. |
|
535 |
img := mono asImage. |
|
536 |
img inspect. |
|
537 |
PBMReader save:img onFile:'test.pbm'. |
|
538 |
img := Image fromFile:'test.pbm'. |
|
539 |
img inspect. |
|
540 |
" |
|
461
bacef118f54a
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
398
diff
changeset
|
541 |
|
1078
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
542 |
"Modified: / 30.9.1998 / 23:30:43 / cg" |
21 | 543 |
! |
544 |
||
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
545 |
writeCommonHeader:format on:aStream |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
546 |
"common header for P4, P5 and P5 formats" |
46 | 547 |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
548 |
aStream nextPutAll:format; cr. |
884 | 549 |
aStream nextPutAll:'# From Smalltalk/X on '. |
550 |
aStream nextPutAll:(Date today printString). |
|
551 |
aStream nextPutAll:' at '; nextPutAll:(Time now printString). |
|
46 | 552 |
aStream cr. |
884 | 553 |
aStream nextPutAll:(width printString); space; nextPutAll:(height printString). |
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
554 |
|
884 | 555 |
"Created: / 14.10.1997 / 20:01:05 / cg" |
556 |
"Modified: / 1.4.1998 / 14:30:47 / cg" |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
557 |
! |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
558 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
559 |
writePBMFileOn:aStream |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
560 |
"Saves the receivers image on the file fileName in Portable Bitmap format." |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
561 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
562 |
self writeCommonHeader:'P4' on:aStream. |
46 | 563 |
aStream cr. |
564 |
||
565 |
aStream binary. |
|
566 |
photometric == #blackIs0 ifTrue:[ |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
567 |
aStream nextPutAll:data. |
46 | 568 |
] ifFalse:[ |
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
569 |
data invert. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
570 |
aStream nextPutAll:data. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
571 |
data invert. |
46 | 572 |
]. |
573 |
aStream close. |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
574 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
575 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
576 |
|i i2| |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
577 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
578 |
i := Image fromFile:'bitmaps/SBrowser.xbm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
579 |
PBMReader save:i onFile:'foo.pbm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
580 |
i2 := Image fromFile:'foo.pbm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
581 |
i2 inspect. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
582 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
583 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
584 |
"Modified: 14.10.1997 / 20:06:49 / cg" |
21 | 585 |
! |
586 |
||
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
587 |
writePGMFileOn:aStream |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
588 |
"Saves the receivers image on the file fileName in Portable Greymap format." |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
589 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
590 |
self writeCommonHeader:'P5' on:aStream. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
591 |
aStream space. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
592 |
aStream nextPutAll:255 printString. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
593 |
aStream cr. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
594 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
595 |
data size ~~ (width * height) ifTrue:[ |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
596 |
"/ self halt:'data size mismatch'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
597 |
]. |
200 | 598 |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
599 |
aStream binary. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
600 |
photometric == #blackIs0 ifTrue:[ |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
601 |
aStream nextPutAll:data. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
602 |
] ifFalse:[ |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
603 |
data invert. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
604 |
aStream nextPutAll:data. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
605 |
data invert. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
606 |
]. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
607 |
aStream close. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
608 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
609 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
610 |
|i gI i2| |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
611 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
612 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
613 |
gI := i asFloydSteinbergDitheredGrayImageDepth:8. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
614 |
PBMReader save:gI onFile:'foo.pgm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
615 |
i2 := Image fromFile:'foo.pgm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
616 |
i2 inspect. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
617 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
618 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
619 |
"Modified: 14.10.1997 / 20:06:58 / cg" |
200 | 620 |
! |
621 |
||
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
622 |
writePNMFileOn:aStream |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
623 |
"Saves the receivers image on the file fileName in Portable Anymap format." |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
624 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
625 |
self writeCommonHeader:'P6' on:aStream. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
626 |
aStream space. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
627 |
aStream nextPutAll:255 printString. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
628 |
aStream cr. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
629 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
630 |
data size ~~ (width * height * 3) ifTrue:[ |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
631 |
"/ self halt:'data size mismatch'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
632 |
]. |
200 | 633 |
|
709
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
634 |
aStream binary. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
635 |
aStream nextPutAll:data. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
636 |
aStream close. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
637 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
638 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
639 |
|i i2| |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
640 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
641 |
i := Image fromFile:'bitmaps/granite.tiff'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
642 |
PBMReader save:i onFile:'foo.pnm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
643 |
i2 := Image fromFile:'foo.pnm'. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
644 |
i2 inspect. |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
645 |
" |
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
646 |
|
813553f7bd20
added write for P4, P5 and P6 formats.
Claus Gittinger <cg@exept.de>
parents:
679
diff
changeset
|
647 |
"Modified: 14.10.1997 / 20:07:08 / cg" |
2 | 648 |
! ! |
649 |
||
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
650 |
!PBMReader class methodsFor:'documentation'! |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
651 |
|
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
652 |
version |
1078
fc33e172bbbc
raise informationLostSignal before attemting to write the file
Claus Gittinger <cg@exept.de>
parents:
1064
diff
changeset
|
653 |
^ '$Header: /cvs/stx/stx/libview2/PBMReader.st,v 1.36 1998-10-01 10:50:21 cg Exp $' |
807
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
654 |
! ! |
855f41b1ec1a
oops - all readers were lost from 1.28 to 1.29
Claus Gittinger <cg@exept.de>
parents:
806
diff
changeset
|
655 |
PBMReader initialize! |