author | Claus Gittinger <cg@exept.de> |
Wed, 28 Jan 1998 16:50:17 +0100 | |
changeset 607 | bf216b414680 |
parent 591 | dfa5c6178f6d |
child 615 | 3be71f2a9b9b |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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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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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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CharacterArray subclass:#Text |
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instanceVariableNames:'string runs' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Collections-Text' |
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! |
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!Text class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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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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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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! |
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documentation |
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" |
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Texts add emphasis information to a string. |
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Texts and strings should behave interchanchably to the outside |
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world, except that texts keep per-character emphasis information. |
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(strings return nil, when asked for an elements emphasis). |
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Use #string, to get a texts underlying string without any emphasis |
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information. |
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Currently, the following attributes are supported: |
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#bold |
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#italic |
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#underline |
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#strikeout |
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(#color -> aColor) |
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(#backgroundColor -> aColor) |
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Attributes may be combined (pass an array of above) as emphasis. |
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See examples. |
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This class is not yet fully implemented - being constructed. |
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[author:] |
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Claus Gittinger |
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[see also:] |
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CharacterArray String RunArray |
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! |
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examples |
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plain string (for comparison): |
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[exBegin] |
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Dialog |
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warn:'hello' |
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[exEnd] |
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emphasized strings as dialog titles: |
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[exBegin] |
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Dialog |
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warn:((Text string:'hello') allBold) |
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[exEnd] |
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[exBegin] |
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Dialog |
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warn:(Text string:'hello' emphasis:#italic) |
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[exEnd] |
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[exBegin] |
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Dialog |
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warn:(Text string:'hello' emphasis:#(bold underline)) |
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[exEnd] |
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[exBegin] |
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Dialog |
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warn:(Text string:'hello' |
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emphasis:(Array with:#bold |
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with:#strikeout |
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with:(#color->Color red))) |
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[exEnd] |
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[exBegin] |
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Dialog |
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warn:(Text string:'hello' |
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emphasis:(Array with:#bold |
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with:#strikeout |
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with:(#color->Color red) |
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with:(#backgroundColor->Color yellow))) |
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[exEnd] |
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[exBegin] |
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Dialog |
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warn:(Text string:'hello' color:(Color red)) |
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[exEnd] |
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in an editTextView: |
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[exBegin] |
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|t v| |
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t := 'The quick brown fox jumps over the lazy dog' asText. |
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t emphasizeFrom:(t findString:'quick') count:5 with:#bold. |
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t emphasizeFrom:(t findString:'brown') count:9 |
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with:(Array with:#color->(Color name:'brown') |
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with:#bold). |
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t emphasizeFrom:(t findString:'lazy') count:4 |
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with:(Array with:#color->(Color red) |
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with:#italic). |
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t emphasizeFrom:(t findString:'dog') count:3 with:#underline. |
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v := HVScrollableView for:EditTextView. |
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v contents:t. |
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v width:450. |
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v open. |
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[exEnd] |
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" |
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! ! |
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!Text class methodsFor:'initialization'! |
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initialize |
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"initialize the class" |
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" |
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consider this a kludge: |
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I want to inherit behavior from CharacterArray, but not |
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its implementation (indexed access). |
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" |
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self flags:(Behavior flagRegular) |
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Text initialize |
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"Modified: 12.5.1996 / 17:53:50 / cg" |
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! ! |
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!Text class methodsFor:'instance creation'! |
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fromString:aString |
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"create a Text instance, for the characters in aString, |
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without emphasis." |
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^ super new string:aString emphasis:nil |
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Text fromString:'hello' |
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"Modified: 12.5.1996 / 17:05:34 / cg" |
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! |
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new |
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"create a new empty Text instance. |
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Redefined for string-protocol compatibility" |
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^ super new string:(String new) emphasis:nil |
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"Text new" |
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"Modified: 12.5.1996 / 17:05:17 / cg" |
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"Modified: 31.12.1996 / 12:39:57 / stefan" |
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! |
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new:size |
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"create a new empty Text instance. |
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Redefined for string-protocol compatibility" |
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^ self string:(String new:size) |
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"Created: 12.5.1996 / 11:57:27 / cg" |
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"Modified: 12.5.1996 / 17:05:17 / cg" |
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! |
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string:aString |
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"create a Text instance, for the characters in aString, |
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without emphasis." |
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^ super new string:aString emphasis:nil |
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" |
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Text string:'hello' |
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" |
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"Modified: 12.5.1996 / 17:05:00 / cg" |
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! |
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string:aString color:aColor |
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"create a Text instance, for the characters in aString, |
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which are colored as aColor (only the foregroundColor is affected). |
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This is a shortCut for creating an emphasis of (#color->aColor)" |
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^ super new string:aString emphasis:(#color->aColor) |
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" |
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Dialog |
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information:(Text string:'hello' color:(Color red)) |
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" |
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"Created: 12.5.1996 / 17:03:20 / cg" |
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"Modified: 27.2.1997 / 10:13:36 / cg" |
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! |
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string:aString emphasis:attribute |
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"create a Text instance, for the characters in aString, |
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which are emphasized as described by attribute." |
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^ super new string:aString emphasis:attribute |
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" |
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Text string:'hello' emphasis:#bold |
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|
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Dialog |
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information:(Text string:'hello' emphasis:#bold) |
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|
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Dialog |
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information:(Text string:'hello' emphasis:#italic) |
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|
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Dialog |
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information:(Text string:'hello' emphasis:#underline) |
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Dialog |
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information:(Text string:'hello' emphasis:#strikeout) |
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" |
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"Modified: 12.5.1996 / 17:16:03 / cg" |
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! |
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|
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string:aString emphasisCollection:attributeCollection |
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"create a Text instance, for the characters in aString, |
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which are individually emphasized as described by attributeCollection." |
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^ super new string:aString emphasisCollection:attributeCollection |
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|
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" |
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Text |
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string:'hello' |
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emphasisCollection:#(#bold #bold #italic #italic #italic) |
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|
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Dialog |
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information:(Text |
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string:'hello' |
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emphasisCollection:#(#bold #bold #italic #italic #(#underline italic))) |
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" |
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261 |
|
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"Created: 14.5.1996 / 14:02:18 / cg" |
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"Modified: 14.5.1996 / 15:01:28 / cg" |
345
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renamed to #string:foregroundColor:backgroundColor:
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! |
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|
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string:aString foregroundColor:fgColor backgroundColor:bgColor |
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"create a Text instance, for the characters in aString, |
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which are colored in fgColor on bgColor. |
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This is a shortCut for creating an emphasis of |
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#( #color->fgColor) (#backgroundColor->bgColor)" |
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271 |
|
466
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272 |
^ super new |
345
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string:aString |
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emphasis:(Array with:#color->fgColor |
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with:#backgroundColor->bgColor) |
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|
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" |
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Dialog |
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279 |
information:(Text string:'hello' |
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foregroundColor:(Color red) |
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backgroundColor:(Color yellow)) |
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" |
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283 |
|
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"Modified: 11.5.1996 / 14:21:01 / cg" |
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"Created: 16.5.1996 / 12:37:24 / cg" |
395 | 286 |
! |
287 |
||
288 |
string:aString runs:aRun |
|
289 |
"create a Text instance, for the characters in aString, |
|
290 |
which are individually emphasized as described by attributeCollection." |
|
291 |
||
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292 |
^ super new string:aString emphasisCollection:aRun. |
304 | 293 |
! ! |
294 |
||
454
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!Text class methodsFor:'emphasis helper'! |
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296 |
|
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addEmphasis:e1 to:e2 |
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"merge two emphasis's into one" |
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299 |
|
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300 |
|ne| |
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301 |
|
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e1 isNil ifTrue:[^ e2]. |
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e2 isNil ifTrue:[^ e1]. |
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e1 == e2 ifTrue:[^ e1]. |
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305 |
|
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306 |
(e1 isSymbol |
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or:[e1 isAssociation]) ifTrue:[ |
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308 |
(e2 isSymbol |
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or:[e2 isAssociation]) ifTrue:[ |
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^ Array with:e1 with:e2 |
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311 |
]. |
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312 |
(e2 includes:e1) ifTrue:[^ e2]. |
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313 |
^ e2 copyWith:e1 |
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314 |
]. |
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315 |
(e2 isSymbol |
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316 |
or:[e2 isAssociation]) ifTrue:[ |
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317 |
(e1 includes:e2) ifTrue:[^ e1]. |
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318 |
^ e1 copyWith:e2 |
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319 |
]. |
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320 |
"/ ould use: |
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321 |
"/ ^ (e1 asSet addAll:e2; asArray) |
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322 |
|
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323 |
"/ but we do it manually, to preserve the |
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324 |
"/ order. (should create longer runs, while editing) |
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325 |
|
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326 |
ne := e1. |
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327 |
e2 do:[:e | |
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328 |
(ne includes:e) ifFalse:[ |
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329 |
ne := ne copyWith:e |
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330 |
] |
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|
331 |
]. |
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|
332 |
^ ne. |
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|
333 |
|
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334 |
" |
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335 |
Text addEmphasis:#bold to:#bold |
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336 |
Text addEmphasis:#bold to:#italic |
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337 |
Text addEmphasis:#bold to:#(italic strikeout) |
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338 |
Text addEmphasis:#italic to:#(italic strikeout) |
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339 |
Text addEmphasis:#(italic strikeout) to:#bold |
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340 |
Text addEmphasis:#(italic strikeout) to:#italic |
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341 |
Text addEmphasis:#(italic strikeout) to:#(bold underline) |
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342 |
Text addEmphasis:(#color->Color red) to:#(bold underline) |
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343 |
" |
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|
344 |
|
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|
345 |
"Modified: 14.5.1996 / 17:15:44 / cg" |
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346 |
! |
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|
347 |
|
339 | 348 |
emphasis:e1 includes:e2 |
349 |
"return true, if e1 includes e2. |
|
350 |
e2 should be a single emphasis." |
|
351 |
||
352 |
e1 isNil ifTrue:[^ false]. |
|
353 |
e2 isNil ifTrue:[^ false]. |
|
354 |
e1 == e2 ifTrue:[^ true]. |
|
355 |
||
356 |
(e1 isSymbol |
|
357 |
or:[e1 isAssociation]) ifTrue:[ |
|
358 |
^ false |
|
359 |
]. |
|
360 |
(e2 isSymbol |
|
361 |
or:[e2 isAssociation]) ifTrue:[ |
|
362 |
^ (e1 includes:e2) |
|
363 |
]. |
|
364 |
^ false |
|
365 |
||
366 |
" |
|
367 |
Text emphasis:#bold includes:#bold |
|
368 |
Text emphasis:#bold includes:#ialic |
|
369 |
Text emphasis:#(italic strikeout) includes:#bold |
|
370 |
Text emphasis:#(italic strikeout) includes:#italic |
|
371 |
" |
|
372 |
||
373 |
"Modified: 14.5.1996 / 17:45:11 / cg" |
|
374 |
! |
|
375 |
||
407 | 376 |
extractEmphasis:key from:e |
377 |
"if key is included in the emphasis, e then return the key. |
|
378 |
Otherwise, if a n association with that key is included, return the value. |
|
379 |
Otherwise, return nil." |
|
380 |
||
381 |
e isNil ifTrue:[^ nil]. |
|
382 |
key == e ifTrue:[^ e]. |
|
383 |
"/ e isSymbol ifTrue:[^ nil]. |
|
384 |
||
385 |
e isAssociation ifTrue:[ |
|
386 |
e key == key ifTrue:[^ e value]. |
|
387 |
^ nil |
|
388 |
]. |
|
389 |
(e includes:key) ifTrue:[^ key]. |
|
390 |
e do:[:entry | |
|
391 |
entry isAssociation ifTrue:[ |
|
392 |
entry key == key ifTrue:[ |
|
393 |
^ entry value |
|
394 |
] |
|
395 |
] |
|
396 |
]. |
|
397 |
^ nil |
|
398 |
||
399 |
" |
|
400 |
Text extractEmphasis:#bold from:#bold |
|
401 |
Text extractEmphasis:#bold from:#italic |
|
402 |
Text extractEmphasis:#bold from:#(italic strikeout) |
|
403 |
Text extractEmphasis:#bold from:#(italic bold) |
|
404 |
Text extractEmphasis:#color from:(#color->Color red) |
|
405 |
Text extractEmphasis:#color from:(#foo->Color red) |
|
406 |
" |
|
407 |
||
408 |
"Modified: 14.5.1996 / 17:45:11 / cg" |
|
409 |
"Created: 11.7.1996 / 09:49:58 / cg" |
|
410 |
! |
|
411 |
||
336
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|
412 |
removeEmphasis:e1 from:e2 |
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413 |
"remove an emphasis; if it was not in e1, do nothing" |
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changeset
|
414 |
|
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changeset
|
415 |
|ne| |
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changeset
|
416 |
|
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changeset
|
417 |
e1 isNil ifTrue:[^ nil]. |
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|
418 |
e2 isNil ifTrue:[^ e1]. |
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|
419 |
e1 == e2 ifTrue:[^ nil]. |
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changeset
|
420 |
|
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|
421 |
(e2 isSymbol |
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changeset
|
422 |
or:[e2 isAssociation]) ifTrue:[ |
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|
423 |
(e1 includes:e2) ifTrue:[^ nil]. |
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|
424 |
^ e2 |
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|
425 |
]. |
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|
426 |
(e1 isSymbol |
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changeset
|
427 |
or:[e1 isAssociation]) ifTrue:[ |
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changeset
|
428 |
(e2 includes:e1) ifTrue:[ |
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|
429 |
ne := e2 copyWithout:e1. |
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|
430 |
ne size == 1 ifTrue:[^ ne at:1]. |
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|
431 |
ne size == 0 ifTrue:[^ nil]. |
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|
432 |
^ ne |
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changeset
|
433 |
]. |
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changeset
|
434 |
^ e2 |
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changeset
|
435 |
]. |
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changeset
|
436 |
|
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Claus Gittinger <cg@exept.de>
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335
diff
changeset
|
437 |
"/ ould use: |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
438 |
"/ ^ (e2 asSet removeAll:e1; asArray) |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
439 |
|
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
440 |
"/ but we do it manually, to preserve the |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
441 |
"/ order. (should create longer runs, while editing) |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
442 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
443 |
ne := e2. |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
444 |
e1 do:[:e | |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
445 |
(ne includes:e) ifTrue:[ |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
446 |
ne := ne copyWithout:e |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
447 |
] |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
448 |
]. |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
449 |
ne size == 1 ifTrue:[^ ne at:1]. |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
450 |
ne size == 0 ifTrue:[^ nil]. |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
451 |
^ ne. |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
452 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
453 |
" |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
454 |
Text removeEmphasis:#bold from:#bold |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
455 |
Text removeEmphasis:#bold from:#italic |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
456 |
Text removeEmphasis:#bold from:#(italic strikeout) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
457 |
Text removeEmphasis:#italic from:#(italic strikeout) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
458 |
Text removeEmphasis:#(italic strikeout) from:#bold |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
459 |
Text removeEmphasis:#(italic strikeout) from:#italic |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
460 |
Text removeEmphasis:#(italic strikeout) from:#(bold underline) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
461 |
Text removeEmphasis:#(italic strikeout bold) from:#(bold underline) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
462 |
Text removeEmphasis:#(italic strikeout bold underline) from:#(bold underline) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
463 |
Text removeEmphasis:(#color->Color red) from:#(bold underline) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
464 |
" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
465 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
466 |
"Modified: 14.5.1996 / 17:23:46 / cg" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
467 |
! ! |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
468 |
|
304 | 469 |
!Text methodsFor:'comparing'! |
470 |
||
471 |
= aStringOrText |
|
472 |
"compare the receiver and the argument, ignoring emphasis" |
|
473 |
||
384 | 474 |
aStringOrText isString ifFalse:[^ false]. |
304 | 475 |
^ string = aStringOrText string |
476 |
||
477 |
||
478 |
" |
|
479 |
'hello' asText = 'hello' |
|
480 |
'hello' asText = 'hello' asText |
|
481 |
'hello' asText allBold = 'hello' |
|
482 |
" |
|
483 |
||
384 | 484 |
"Modified: 4.6.1996 / 11:14:58 / cg" |
304 | 485 |
! ! |
486 |
||
487 |
!Text methodsFor:'converting'! |
|
488 |
||
489 |
asText |
|
343 | 490 |
"return the receiver itself - it is already a text object" |
491 |
||
304 | 492 |
^ self |
493 |
||
494 |
"Created: 11.5.1996 / 14:08:36 / cg" |
|
343 | 495 |
"Modified: 16.5.1996 / 11:15:12 / cg" |
304 | 496 |
! |
497 |
||
498 |
at:characterIndex |
|
343 | 499 |
"return the plain character at characterIndex" |
500 |
||
304 | 501 |
^ string at:characterIndex |
502 |
||
503 |
"Created: 11.5.1996 / 14:25:41 / cg" |
|
343 | 504 |
"Modified: 16.5.1996 / 11:15:33 / cg" |
304 | 505 |
! |
506 |
||
507 |
at:characterIndex put:aCharacter |
|
343 | 508 |
"change the character at characterIndex to be aCharacter. |
509 |
The emphasis (if any) of that character remains unchanged." |
|
510 |
||
304 | 511 |
^ string at:characterIndex put:aCharacter |
512 |
||
513 |
"Created: 11.5.1996 / 14:25:49 / cg" |
|
343 | 514 |
"Modified: 16.5.1996 / 11:15:57 / cg" |
304 | 515 |
! ! |
516 |
||
517 |
!Text methodsFor:'copying'! |
|
518 |
||
519 |
, aStringOrText |
|
343 | 520 |
"concatenate the receivers characters with the arguments characters, |
521 |
and return string or text object containing those characters. |
|
522 |
If either the receiver or the argument contains emphasis information, |
|
523 |
a text object will be returned. Otherwise, a string (i.e. without emphasis) |
|
524 |
is returned." |
|
304 | 525 |
|
408 | 526 |
aStringOrText hasChangeOfEmphasis ifTrue:[ |
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
527 |
^ self species new |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
528 |
string:(string , aStringOrText) |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
529 |
emphasisCollection:(runs , aStringOrText emphasisCollection) |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
530 |
]. |
408 | 531 |
runs notNil "self hasChangeOfEmphasis" ifTrue:[ |
532 |
^ self species new |
|
533 |
string:(string , aStringOrText) |
|
534 |
emphasisCollection:(runs copy add:nil withOccurrences:(aStringOrText size); yourself) |
|
535 |
]. |
|
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
536 |
^ string , aStringOrText string |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
537 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
538 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
539 |
('hello' asText allBold) , ' world' |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
540 |
'hello' , (' world' asText allBold) |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
541 |
'hello' , ' world' |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
542 |
('hello' asText allBold) , (' world' asText allBold) |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
543 |
" |
304 | 544 |
|
408 | 545 |
"Modified: 11.7.1996 / 13:22:39 / cg" |
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
546 |
! |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
547 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
548 |
concatenateFromString:aString |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
549 |
"return the concatenation of aString and myself. |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
550 |
This may be a Text (if I have emphasis) or a string (if not)." |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
551 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
552 |
self hasChangeOfEmphasis ifTrue:[ |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
553 |
^ self species new |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
554 |
string:(aString , string) |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
555 |
emphasisCollection:((RunArray new:(aString size)) , runs). |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
556 |
]. |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
557 |
^ aString , string |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
558 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
559 |
"Modified: 14.5.1996 / 15:56:05 / cg" |
394 | 560 |
! |
561 |
||
454
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
562 |
copyFrom:start to:stop |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
563 |
"return the subcollection starting at index start, anInteger and ending |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
564 |
at stop, anInteger." |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
565 |
|
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
566 |
self hasChangeOfEmphasis ifTrue:[ |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
567 |
^ self species new |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
568 |
string:(string copyFrom:start to:stop) |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
569 |
emphasisCollection:(runs copyFrom:start to:stop). |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
570 |
]. |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
571 |
^ string copyFrom:start to:stop |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
572 |
|
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
573 |
"Modified: 14.5.1996 / 15:56:05 / cg" |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
574 |
"Created: 22.10.1996 / 21:01:16 / cg" |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
575 |
! |
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
576 |
|
394 | 577 |
postCopy |
578 |
string := string copy. |
|
579 |
runs := runs copy |
|
307 | 580 |
! ! |
581 |
||
582 |
!Text methodsFor:'displaying'! |
|
583 |
||
584 |
displayOn:aGC x:x0 y:y opaque:opaque |
|
585 |
"display the receiver on a GC" |
|
586 |
||
393 | 587 |
|savedFont savedPaint savedBgPaint font color boldFont italicFont boldItalicFont |
315 | 588 |
bgPaint |
310 | 589 |
bold italic underline strikeout |
590 |
pos "{ Class: SmallInteger }" |
|
591 |
endPos "{ Class: SmallInteger }" |
|
410
3d42216e96b0
oops - x can be float in displayOn... in case of scaling in the GC
Claus Gittinger <cg@exept.de>
parents:
409
diff
changeset
|
592 |
x |
310 | 593 |
l "{ Class: SmallInteger }" |
360 | 594 |
yL k value device| |
307 | 595 |
|
596 |
savedFont := aGC basicFont. |
|
597 |
savedPaint := aGC paint. |
|
315 | 598 |
savedBgPaint := aGC backgroundPaint. |
307 | 599 |
|
600 |
pos := 1. |
|
601 |
x := x0. |
|
602 |
runs runsDo:[:len :emphasis | |
|
603 |
color := nil. |
|
604 |
bold := italic := underline := strikeout := false. |
|
315 | 605 |
bgPaint := savedBgPaint. |
307 | 606 |
|
607 |
emphasis isSymbol ifTrue:[ |
|
608 |
emphasis == #bold ifTrue:[bold := true] |
|
609 |
ifFalse:[emphasis == #italic ifTrue:[italic := true] |
|
610 |
ifFalse:[emphasis == #underline ifTrue:[underline := true] |
|
611 |
ifFalse:[emphasis == #strikeout ifTrue:[strikeout := true] |
|
612 |
]]] |
|
613 |
] ifFalse:[ |
|
614 |
(emphasis isMemberOf:Association) ifTrue:[ |
|
315 | 615 |
value := emphasis value. |
616 |
k := emphasis key. |
|
617 |
k == #color ifTrue:[ |
|
618 |
color := value |
|
619 |
] ifFalse:[k == #backgroundColor ifTrue:[ |
|
620 |
bgPaint := value |
|
621 |
]] |
|
307 | 622 |
] ifFalse:[ |
623 |
emphasis notNil ifTrue:[ |
|
624 |
emphasis do:[:entry | |
|
625 |
entry == #bold ifTrue:[bold := true] |
|
626 |
ifFalse:[entry == #italic ifTrue:[italic := true] |
|
627 |
ifFalse:[entry == #underline ifTrue:[underline := true] |
|
628 |
ifFalse:[entry == #strikeout ifTrue:[strikeout := true] |
|
629 |
ifFalse:[ |
|
630 |
(entry isMemberOf:Association) ifTrue:[ |
|
315 | 631 |
value := entry value. |
632 |
k := entry key. |
|
633 |
k == #color ifTrue:[ |
|
634 |
color := value |
|
635 |
] ifFalse:[k == #backgroundColor ifTrue:[ |
|
636 |
bgPaint := value |
|
637 |
]] |
|
307 | 638 |
] |
315 | 639 |
]]]] |
307 | 640 |
] |
641 |
] |
|
642 |
] |
|
643 |
]. |
|
644 |
||
360 | 645 |
device := aGC graphicsDevice. |
646 |
||
307 | 647 |
color isNil ifTrue:[ |
648 |
color := savedPaint. |
|
649 |
] ifFalse:[ |
|
360 | 650 |
color := color on:device. |
307 | 651 |
]. |
304 | 652 |
|
307 | 653 |
bold ifTrue:[ |
393 | 654 |
italic ifTrue:[ |
655 |
boldItalicFont isNil ifTrue:[ |
|
656 |
boldItalicFont := savedFont asBold asItalic on:device |
|
657 |
]. |
|
658 |
font := boldItalicFont. |
|
659 |
] ifFalse:[ |
|
660 |
boldFont isNil ifTrue:[ |
|
661 |
boldFont := savedFont asBold on:device |
|
662 |
]. |
|
663 |
font := boldFont. |
|
664 |
] |
|
307 | 665 |
] ifFalse:[ |
666 |
italic ifTrue:[ |
|
667 |
italicFont isNil ifTrue:[ |
|
360 | 668 |
italicFont := savedFont asItalic on:device |
307 | 669 |
]. |
670 |
font := italicFont. |
|
671 |
] ifFalse:[ |
|
672 |
font := savedFont |
|
673 |
] |
|
674 |
]. |
|
675 |
aGC basicFont:font. |
|
315 | 676 |
aGC paint:color on:bgPaint. |
307 | 677 |
|
310 | 678 |
endPos := pos + len - 1. |
307 | 679 |
opaque ifTrue:[ |
310 | 680 |
aGC displayOpaqueString:string from:pos to:endPos x:x y:y. |
307 | 681 |
] ifFalse:[ |
310 | 682 |
aGC displayString:string from:pos to:endPos x:x y:y. |
307 | 683 |
]. |
591
dfa5c6178f6d
care to use deviceFont in width-query
Claus Gittinger <cg@exept.de>
parents:
549
diff
changeset
|
684 |
l := (aGC font on:aGC device) widthOf:string from:pos to:endPos. |
307 | 685 |
|
686 |
underline ifTrue:[ |
|
310 | 687 |
yL := y+1. |
688 |
aGC displayLineFromX:x y:yL toX:x+l-1 y:yL |
|
689 |
]. |
|
690 |
strikeout ifTrue:[ |
|
691 |
yL := y-(font ascent//2). |
|
692 |
aGC displayLineFromX:x y:yL toX:x+l-1 y:yL |
|
307 | 693 |
]. |
694 |
||
695 |
x := x + l. |
|
310 | 696 |
pos := endPos + 1 |
304 | 697 |
]. |
307 | 698 |
|
699 |
aGC basicFont:savedFont. |
|
316 | 700 |
aGC paint:savedPaint on:savedBgPaint. |
307 | 701 |
|
591
dfa5c6178f6d
care to use deviceFont in width-query
Claus Gittinger <cg@exept.de>
parents:
549
diff
changeset
|
702 |
"Created: / 12.5.1996 / 11:14:30 / cg" |
dfa5c6178f6d
care to use deviceFont in width-query
Claus Gittinger <cg@exept.de>
parents:
549
diff
changeset
|
703 |
"Modified: / 14.11.1997 / 21:49:33 / cg" |
304 | 704 |
! ! |
705 |
||
706 |
!Text methodsFor:'emphasis'! |
|
707 |
||
708 |
allBold |
|
709 |
"make all characters bold" |
|
710 |
||
406 | 711 |
self emphasizeAllWith:#bold |
304 | 712 |
|
713 |
" |
|
714 |
(Text string:'hello') allBold |
|
715 |
" |
|
716 |
||
406 | 717 |
"Modified: 10.7.1996 / 12:07:51 / cg" |
304 | 718 |
! |
719 |
||
335
4adf1b6b4063
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Claus Gittinger <cg@exept.de>
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316
diff
changeset
|
720 |
emphasis |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
721 |
"return the emphasis" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
722 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
723 |
^ runs |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
724 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
725 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
726 |
(Text string:'hello') allBold emphasis |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
727 |
'hello' emphasis |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
728 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
729 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
730 |
"Modified: 11.5.1996 / 14:22:31 / cg" |
4adf1b6b4063
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Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
731 |
"Created: 14.5.1996 / 13:59:03 / cg" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
732 |
! |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
733 |
|
304 | 734 |
emphasisAt:characterIndex |
735 |
"return the emphasis at some index" |
|
736 |
||
737 |
^ runs at:characterIndex |
|
738 |
||
739 |
" |
|
740 |
(Text string:'hello') allBold emphasisAt:2 |
|
741 |
" |
|
742 |
||
743 |
"Modified: 11.5.1996 / 14:22:31 / cg" |
|
744 |
! |
|
745 |
||
336
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
746 |
emphasisAt:characterIndex add:newEmphasis |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
747 |
"add to the emphasis at some index. return the receiver" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
748 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
749 |
|e| |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
750 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
751 |
e := runs at:characterIndex. |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
752 |
e := self class addEmphasis:newEmphasis to:e. |
5fd5fcc38eaa
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parents:
335
diff
changeset
|
753 |
runs at:characterIndex put:e |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
754 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
755 |
" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
756 |
(Text string:'hello') allBold emphasisAt:2 add:#italic |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
757 |
" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
758 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
759 |
"Created: 14.5.1996 / 16:48:39 / cg" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
760 |
"Modified: 14.5.1996 / 17:13:47 / cg" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
761 |
! |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
762 |
|
307 | 763 |
emphasisAt:characterIndex put:emphasis |
764 |
"change the emphasis at some index. return the receiver" |
|
765 |
||
766 |
runs at:characterIndex put:emphasis |
|
767 |
||
768 |
" |
|
769 |
(Text string:'hello') allBold emphasisAt:2 put:#italic |
|
770 |
" |
|
771 |
||
772 |
"Modified: 12.5.1996 / 12:40:31 / cg" |
|
773 |
! |
|
774 |
||
336
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
775 |
emphasisAt:characterIndex remove:emphasisToRemove |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
776 |
"remove from the emphasis at some index. return the receiver" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
777 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
778 |
|e| |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
779 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
780 |
e := runs at:characterIndex. |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
781 |
e := self class removeEmphasis:emphasisToRemove from:e. |
5fd5fcc38eaa
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Claus Gittinger <cg@exept.de>
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335
diff
changeset
|
782 |
runs at:characterIndex put:e |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
783 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
784 |
" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
785 |
(Text string:'hello') |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
786 |
allBold emphasisAt:2 remove:#bold |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
787 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
788 |
(Text string:'hello' emphasis:#(bold italic)) |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
789 |
emphasisAt:2 remove:#bold |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
790 |
" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
791 |
|
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
792 |
"Created: 14.5.1996 / 16:48:39 / cg" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
793 |
"Modified: 14.5.1996 / 17:25:04 / cg" |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
794 |
! |
5fd5fcc38eaa
helpers to add/remove emphasis
Claus Gittinger <cg@exept.de>
parents:
335
diff
changeset
|
795 |
|
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
796 |
emphasisCollection |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
797 |
"return the emphasis" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
798 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
799 |
^ runs |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
800 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
801 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
802 |
(Text string:'hello') allBold emphasis |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
803 |
'hello' emphasis |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
804 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
805 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
806 |
"Created: 14.5.1996 / 13:59:03 / cg" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
807 |
"Modified: 14.5.1996 / 15:02:11 / cg" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
808 |
! |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
809 |
|
304 | 810 |
emphasizeAllWith:emphasis |
811 |
"change the emphasis of all characters" |
|
812 |
||
813 |
runs := RunArray new:(string size) withAll:emphasis |
|
814 |
||
815 |
" |
|
816 |
(Text string:'hello') allBold emphasizeAllWith:#italic |
|
817 |
" |
|
818 |
||
819 |
"Modified: 11.5.1996 / 14:22:52 / cg" |
|
820 |
! |
|
821 |
||
343 | 822 |
emphasizeFrom:start count:count with:emphasis |
823 |
"change the emphasis of a range of characters, given startIndex and count." |
|
824 |
||
825 |
self emphasizeFrom:start to:(start+count-1) with:emphasis |
|
826 |
||
827 |
" |
|
828 |
(Text string:'hello world') |
|
829 |
emphasizeFrom:1 count:5 with:#bold; |
|
830 |
emphasizeFrom:7 count:5 with:#italic |
|
831 |
" |
|
832 |
||
833 |
"Modified: 11.5.1996 / 14:30:02 / cg" |
|
834 |
"Created: 16.5.1996 / 10:52:27 / cg" |
|
835 |
! |
|
836 |
||
304 | 837 |
emphasizeFrom:start to:stop with:emphasis |
838 |
"change the emphasis of a range of characters" |
|
839 |
||
840 |
|newRuns| |
|
841 |
||
842 |
newRuns := RunArray new. |
|
843 |
||
844 |
"/ for now - a q&d hack |
|
845 |
1 to:start-1 do:[:i | |
|
846 |
newRuns add:(runs at:i). |
|
847 |
]. |
|
848 |
newRuns add:emphasis withOccurrences:(stop - start + 1). |
|
849 |
stop+1 to:string size do:[:i | |
|
850 |
newRuns add:(runs at:i) |
|
851 |
]. |
|
852 |
runs := newRuns |
|
853 |
||
854 |
" |
|
855 |
(Text string:'hello world') |
|
856 |
emphasizeFrom:1 to:5 with:#bold; |
|
857 |
emphasizeFrom:7 to:11 with:#italic |
|
858 |
" |
|
859 |
||
860 |
"Modified: 11.5.1996 / 14:30:02 / cg" |
|
347 | 861 |
! |
862 |
||
863 |
emphasizeFrom:start with:emphasis |
|
864 |
"change the emphasis of some characters upTo the end" |
|
865 |
||
866 |
self emphasizeFrom:start to:(self size) with:emphasis |
|
867 |
||
868 |
" |
|
869 |
(Text string:'hello world') |
|
870 |
emphasizeFrom:1 count:5 with:#bold; |
|
871 |
emphasizeFrom:7 with:#italic |
|
872 |
" |
|
873 |
||
874 |
"Modified: 11.5.1996 / 14:30:02 / cg" |
|
875 |
"Created: 17.5.1996 / 15:15:32 / cg" |
|
304 | 876 |
! ! |
877 |
||
878 |
!Text methodsFor:'printing & storing'! |
|
879 |
||
343 | 880 |
printOn:aStream |
881 |
"print the receivers characters (including emphasis) on |
|
409 | 882 |
aStream. |
883 |
Notice, that some streams simply ignore the emphasis |
|
884 |
(Transcript currently does)." |
|
343 | 885 |
|
409 | 886 |
|pos nextPos| |
407 | 887 |
|
888 |
pos := 1. |
|
343 | 889 |
|
407 | 890 |
runs runsDo:[:len :emphasis | |
409 | 891 |
nextPos := pos + len. |
407 | 892 |
|
893 |
aStream emphasis:emphasis. |
|
409 | 894 |
aStream nextPutAll:string startingAt:pos to:nextPos - 1. |
895 |
pos := nextPos |
|
343 | 896 |
]. |
304 | 897 |
|
343 | 898 |
" |
407 | 899 |
Transcript showCR:'hello world'. |
900 |
Transcript showCR:'hello world' asText allBold. |
|
901 |
Transcript showCR:('hello world' asText emphasizeAllWith:#italic). |
|
343 | 902 |
" |
304 | 903 |
|
409 | 904 |
"Modified: 12.7.1996 / 10:15:47 / cg" |
304 | 905 |
! |
906 |
||
907 |
storeOn:aStream |
|
343 | 908 |
"append a printed representation from which the receiver can be reconstructed |
909 |
to aStream." |
|
910 |
||
304 | 911 |
aStream nextPutAll:'(Text string:'. |
912 |
string storeOn:aStream. |
|
307 | 913 |
aStream nextPutAll:' runs:'. |
304 | 914 |
runs storeOn:aStream. |
915 |
aStream nextPutAll:')'. |
|
916 |
||
917 |
"Created: 11.5.1996 / 14:27:09 / cg" |
|
343 | 918 |
"Modified: 16.5.1996 / 11:23:32 / cg" |
304 | 919 |
! ! |
920 |
||
921 |
!Text methodsFor:'private accessing'! |
|
922 |
||
923 |
string:aString emphasis:emphasis |
|
343 | 924 |
"set the string and emphasis. The emphasis is applied to all characters." |
925 |
||
428 | 926 |
string := aString string. |
927 |
runs := RunArray new:string size withAll:emphasis |
|
304 | 928 |
|
929 |
" |
|
930 |
|t| |
|
931 |
||
932 |
t := Text new string:'hello' emphasis:#bold. |
|
933 |
t emphasisAt:2. |
|
934 |
" |
|
935 |
||
343 | 936 |
"Modified: 16.5.1996 / 11:24:03 / cg" |
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
937 |
! |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
938 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
939 |
string:aString emphasisCollection:emphasisCollection |
343 | 940 |
"set the string and emphasis collection. |
941 |
The emphasis collection contains per-character information." |
|
942 |
||
428 | 943 |
string := aString string. |
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
944 |
runs := emphasisCollection asRunArray |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
945 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
946 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
947 |
|t| |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
948 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
949 |
t := Text new string:'hello' emphasisCollection:(#bold #bold #bold #italic #italic). |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
950 |
t emphasisAt:2. |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
951 |
" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
952 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
953 |
"Created: 14.5.1996 / 14:03:29 / cg" |
343 | 954 |
"Modified: 16.5.1996 / 11:24:21 / cg" |
304 | 955 |
! ! |
956 |
||
957 |
!Text methodsFor:'queries'! |
|
958 |
||
307 | 959 |
bitsPerCharacter |
343 | 960 |
"return the underlying strings bitsPerCharacter |
961 |
(i.e. is it a regular String or a TwoByteString)" |
|
962 |
||
307 | 963 |
^ string bitsPerCharacter |
304 | 964 |
|
307 | 965 |
"Created: 12.5.1996 / 15:44:04 / cg" |
343 | 966 |
"Modified: 16.5.1996 / 11:24:54 / cg" |
304 | 967 |
! |
968 |
||
969 |
hasChangeOfEmphasis |
|
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
970 |
"return true, if the receiver contains non-empty emphasis information" |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
971 |
|
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
972 |
^ (runs notNil |
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
973 |
and:[(runs findFirst:[:e | e notNil]) ~~ 0]) |
304 | 974 |
|
975 |
"Created: 11.5.1996 / 14:03:19 / cg" |
|
335
4adf1b6b4063
concatenating mixed texts & strings
Claus Gittinger <cg@exept.de>
parents:
316
diff
changeset
|
976 |
"Modified: 14.5.1996 / 15:51:01 / cg" |
304 | 977 |
! |
978 |
||
307 | 979 |
heightOn:aGC |
980 |
"return the number of device units, required on aGC's device" |
|
981 |
||
982 |
^ aGC font heightOf:string |
|
983 |
||
984 |
"Created: 12.5.1996 / 11:02:03 / cg" |
|
985 |
! |
|
986 |
||
304 | 987 |
indexOf:aCharacter startingAt:index |
343 | 988 |
"search aCharacters index in the underlying string" |
989 |
||
304 | 990 |
^ string indexOf:aCharacter startingAt:index |
991 |
||
992 |
"Created: 11.5.1996 / 13:58:56 / cg" |
|
343 | 993 |
"Modified: 16.5.1996 / 11:25:12 / cg" |
304 | 994 |
! |
995 |
||
307 | 996 |
isText |
343 | 997 |
"return true if this is a Text object - always true here" |
998 |
||
307 | 999 |
^ true |
1000 |
||
1001 |
"Created: 12.5.1996 / 10:56:24 / cg" |
|
343 | 1002 |
"Modified: 16.5.1996 / 11:25:29 / cg" |
307 | 1003 |
! |
1004 |
||
304 | 1005 |
occurrencesOf:aCharacter |
343 | 1006 |
"count & return the number of occurrences of aCharacter in the |
1007 |
underlying string" |
|
1008 |
||
304 | 1009 |
^ string occurrencesOf:aCharacter |
1010 |
||
1011 |
"Created: 11.5.1996 / 13:58:46 / cg" |
|
343 | 1012 |
"Modified: 16.5.1996 / 11:25:51 / cg" |
304 | 1013 |
! |
1014 |
||
1015 |
size |
|
343 | 1016 |
"return the number of characters in the underlying string" |
1017 |
||
304 | 1018 |
^ string size |
1019 |
||
1020 |
"Created: 11.5.1996 / 14:25:15 / cg" |
|
343 | 1021 |
"Modified: 16.5.1996 / 11:26:08 / cg" |
304 | 1022 |
! |
1023 |
||
1024 |
string |
|
343 | 1025 |
"return the receiver without any emphasis information |
1026 |
i.e. the underlying string." |
|
1027 |
||
304 | 1028 |
^ string |
1029 |
||
1030 |
"Created: 11.5.1996 / 13:58:38 / cg" |
|
343 | 1031 |
"Modified: 16.5.1996 / 11:26:30 / cg" |
307 | 1032 |
! |
1033 |
||
1034 |
widthOn:aGC |
|
1035 |
"return the number of device units, required on aGC's device" |
|
1036 |
||
450 | 1037 |
|savedFont boldFont italicFont bold italic pos f l device| |
307 | 1038 |
|
404
14cf34141532
use #graphicsDevice instead of #device.
Claus Gittinger <cg@exept.de>
parents:
395
diff
changeset
|
1039 |
device := aGC graphicsDevice. |
14cf34141532
use #graphicsDevice instead of #device.
Claus Gittinger <cg@exept.de>
parents:
395
diff
changeset
|
1040 |
|
14cf34141532
use #graphicsDevice instead of #device.
Claus Gittinger <cg@exept.de>
parents:
395
diff
changeset
|
1041 |
savedFont := aGC basicFont on:device. |
307 | 1042 |
|
1043 |
pos := 1. |
|
1044 |
l := 0. |
|
1045 |
runs runsDo:[:len :emphasis | |
|
1046 |
emphasis isSymbol ifTrue:[ |
|
1047 |
bold := emphasis == #bold. |
|
1048 |
italic := emphasis == #italic. |
|
1049 |
] ifFalse:[ |
|
308 | 1050 |
(emphasis isNil |
1051 |
or:[emphasis isMemberOf:Association]) ifTrue:[ |
|
307 | 1052 |
bold := italic := false |
1053 |
] ifFalse:[ |
|
1054 |
bold := emphasis includesIdentical:#bold. |
|
1055 |
italic := emphasis includesIdentical:#italic. |
|
1056 |
] |
|
1057 |
]. |
|
1058 |
||
1059 |
bold ifTrue:[ |
|
1060 |
boldFont isNil ifTrue:[ |
|
360 | 1061 |
boldFont := savedFont asBold on:device |
307 | 1062 |
]. |
1063 |
f := boldFont. |
|
1064 |
] ifFalse:[ |
|
1065 |
italic ifTrue:[ |
|
1066 |
italicFont isNil ifTrue:[ |
|
360 | 1067 |
italicFont := savedFont asItalic on:device |
307 | 1068 |
]. |
1069 |
f := italicFont |
|
1070 |
] ifFalse:[ |
|
1071 |
f := savedFont |
|
1072 |
] |
|
1073 |
]. |
|
1074 |
l := l + (f widthOf:string from:pos to:(pos + len - 1)). |
|
1075 |
pos := pos + len |
|
1076 |
]. |
|
1077 |
||
1078 |
^ l |
|
1079 |
||
404
14cf34141532
use #graphicsDevice instead of #device.
Claus Gittinger <cg@exept.de>
parents:
395
diff
changeset
|
1080 |
"Modified: 5.7.1996 / 17:54:58 / cg" |
307 | 1081 |
! ! |
1082 |
||
1083 |
!Text methodsFor:'replacing'! |
|
1084 |
||
1085 |
replaceFrom:start to:stop with:aCollection startingAt:startIndex |
|
343 | 1086 |
"replace a range of characters, from another string or text object. |
607 | 1087 |
The corresponding characters' emphasis information is also copied. |
1088 |
Return the receiver." |
|
343 | 1089 |
|
307 | 1090 |
|idx| |
1091 |
||
1092 |
aCollection isString ifTrue:[ |
|
1093 |
aCollection hasChangeOfEmphasis ifTrue:[ |
|
1094 |
string replaceFrom:start to:stop with:aCollection startingAt:startIndex. |
|
1095 |
idx := startIndex. |
|
1096 |
start to:stop do:[:col | |
|
1097 |
self emphasisAt:col put:(aCollection emphasisAt:idx). |
|
1098 |
idx := idx + 1. |
|
1099 |
]. |
|
1100 |
^ self. |
|
1101 |
] |
|
1102 |
]. |
|
1103 |
||
1104 |
string replaceFrom:start to:stop with:aCollection startingAt:startIndex. |
|
1105 |
self emphasizeFrom:start to:stop with:nil |
|
1106 |
||
1107 |
" |
|
1108 |
((Text string:'hello') allBold emphasisAt:2 put:#italic) |
|
1109 |
copyFrom:1 to:3 |
|
1110 |
" |
|
1111 |
||
607 | 1112 |
"Modified: / 28.1.1998 / 16:50:06 / cg" |
304 | 1113 |
! ! |
1114 |
||
454
ffc79ebcbb20
oops - copyFrom:to: clobbered the emphasis
Claus Gittinger <cg@exept.de>
parents:
450
diff
changeset
|
1115 |
!Text class methodsFor:'documentation'! |
304 | 1116 |
|
1117 |
version |
|
607 | 1118 |
^ '$Header: /cvs/stx/stx/libbasic2/Text.st,v 1.35 1998-01-28 15:50:17 cg Exp $' |
304 | 1119 |
! ! |
314 | 1120 |
Text initialize! |