[Pkg] The Trunk: Morphic-nice.679.mcz
commits at source.squeak.org
commits at source.squeak.org
Fri Sep 6 00:19:28 UTC 2013
Nicolas Cellier uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-nice.679.mcz
==================== Summary ====================
Name: Morphic-nice.679
Author: nice
Time: 6 September 2013, 2:16:42.752 am
UUID: 791f0232-8938-44ec-9112-73377cb605d6
Ancestors: Morphic-topa.678
Avoid using Character tab asSymbol, if it does not make sense.
=============== Diff against Morphic-topa.678 ===============
Item was changed:
----- Method: TextEditor>>inOutdent:delta: (in category 'editing keys') -----
inOutdent: aKeyboardEvent delta: delta
"Add/remove a tab at the front of every line occupied by the selection. Flushes typeahead. Derived from work by Larry Tesler back in December 1985. Now triggered by Cmd-L and Cmd-R. 2/29/96 sw"
| realStart realStop lines startLine stopLine start stop adjustStart indentation numLines oldString newString newSize |
"Operate on entire lines, but remember the real selection for re-highlighting later"
realStart := self startIndex.
realStop := self stopIndex - 1.
"Special case a caret on a line of its own, including weird case at end of paragraph"
(realStart > realStop and:
[realStart < 2 or: [(paragraph string at: realStart - 1) == Character cr or: [(paragraph string at: realStart - 1) == Character lf]]])
ifTrue:
[delta < 0
ifTrue:
[morph flash]
ifFalse:
+ [self replaceSelectionWith: Character tab asText.
- [self replaceSelectionWith: Character tab asSymbol asText.
self selectAt: realStart + 1].
^true].
lines := paragraph lines.
startLine := paragraph lineIndexOfCharacterIndex: realStart.
"start on a real line, not a wrapped line"
[startLine = 1 or: [CharacterSet crlf includes: (paragraph string at: (lines at: startLine-1) last)]] whileFalse: [startLine := startLine - 1].
stopLine := paragraph lineIndexOfCharacterIndex: (realStart max: realStop).
start := (lines at: startLine) first.
stop := (lines at: stopLine) last.
"Pin the start of highlighting unless the selection starts a line"
adjustStart := realStart > start.
"Find the indentation of the least-indented non-blank line; never outdent more"
indentation := (startLine to: stopLine) inject: 1000 into:
[:m :l |
m min: (paragraph indentationOfLineIndex: l ifBlank: [:tabs | 1000])].
indentation + delta <= 0 ifTrue: ["^false"].
numLines := stopLine + 1 - startLine.
oldString := paragraph string copyFrom: start to: stop.
newString := oldString species new: oldString size + ((numLines * delta) max: 0).
"Do the actual work"
newSize := 0.
delta > 0
ifTrue: [| tabs |
tabs := oldString species new: delta withAll: Character tab.
oldString lineIndicesDo: [:startL :endWithoutDelimiters :endL |
startL < endWithoutDelimiters ifTrue: [newString replaceFrom: 1 + newSize to: (newSize := newSize + delta) with: tabs startingAt: 1].
newString replaceFrom: 1 + newSize to: (newSize := 1 + newSize + endL - startL) with: oldString startingAt: startL]]
ifFalse: [| tab |
tab := Character tab.
oldString lineIndicesDo: [:startL :endWithoutDelimiters :endL |
| i |
i := 0.
[i + delta < 0 and: [ i + startL <= endWithoutDelimiters and: [(oldString at: i + startL) == tab]]] whileTrue: [i := i + 1].
newString replaceFrom: 1 + newSize to: (newSize := 1 + newSize + endL - (i + startL)) with: oldString startingAt: i + startL]].
newSize < newString size ifTrue: [newString := newString copyFrom: 1 to: newSize].
"Adjust the range that will be highlighted later"
adjustStart ifTrue: [realStart := (realStart + delta) max: start].
realStop := realStop + newSize - oldString size.
"Replace selection"
self selectInvisiblyFrom: start to: stop.
self replaceSelectionWith: newString asText.
self selectFrom: realStart to: realStop. "highlight only the original range"
^ true!
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