Squeak-dev April 2020

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235 discussions

The Inbox: Morphic-spfa.1641.mcz
by commits＠source.squeak.org 02 Apr '20

02 Apr '20

A new version of Morphic was added to project The Inbox: http://source.squeak.org/inbox/Morphic-spfa.1641.mcz ==================== Summary ==================== Name: Morphic-spfa.1641 Author: spfa Time: 2 April 2020, 11:31:57.845097 pm UUID: be701ee2-5637-c34d-8765-d2527e1d5785 Ancestors: Morphic-mt.1640 Add inst. var. lastParenLocation to TextEditor #stateArray (used to transfer state to a newly installed editor). This ensures that #clearParens works as expected in all circumstances. =============== Diff against Morphic-mt.1640 =============== Item was changed: ----- Method: TextEditor>>stateArray (in category 'initialize-release') ----- stateArray ^ {ChangeText. FindText. history ifNil: [TextEditorCommandHistory new]. "Convert old instances" self markIndex to: self pointIndex - 1. self startOfTyping. + emphasisHere. + lastParenLocation}! - emphasisHere}! Item was changed: ----- Method: TextEditor>>stateArrayPut: (in category 'initialize-release') ----- stateArrayPut: stateArray | sel | ChangeText := stateArray at: 1. FindText := stateArray at: 2. history := stateArray at: 3. sel := stateArray at: 4. self selectFrom: sel first to: sel last. beginTypeInIndex := stateArray at: 5. + emphasisHere := stateArray at: 6. + lastParenLocation := stateArray at: 7! - emphasisHere := stateArray at: 6!

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Fun things to do with SqueakMQTT
by tim Rowledge 02 Apr '20

02 Apr '20

Living waaaaay out in the middle of nowhere (it isn't a joke that I have an underground laboratory in the middle of the rainforest on a Pacific island) we have a well and a septic system. One of the problems we face is too-frequent minor electrical glitches that can trip circuit breakers. That's annoying for in-house stuff but if the breaker/gcfi for the septic system pump trips then poop don't pump and after a day or two a shrieking alarm wakes us up - because of course it happens at night. So to monitor the power actually at the pump and get a warning when it is absent - before the shriek - I adapted one of the little ESP8266 wifi SBCs I've been using for temp/humidity monitoring in the house. Since I don't really care about the outside temp/humidity for this purpose I just removed the sensor and the relevant code and reflashed a board so it simply reports status; and of course if there is not power it can't report anything. At the Squeak end I simply track the last timestamp received from that unit and if nothing has come in for 30 minutes it notifies me. Of course this is really nothing like as sophisticated as the usage LabWare put an extension of my MQTT code to; that's monitoring the power grid for Scottish Power and apparently several US states. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Strange OpCodes: XER: Exclusive ERror

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The Trunk: Morphic-mt.1640.mcz
by commits＠source.squeak.org 02 Apr '20

02 Apr '20

Marcel Taeumel uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-mt.1640.mcz ==================== Summary ==================== Name: Morphic-mt.1640 Author: mt Time: 2 April 2020, 7:04:01.023784 pm UUID: efcf5cf1-ceb9-784e-ab5a-af7de2dc2c71 Ancestors: Morphic-mt.1639 Fixes a drag-and-drop bug for lists with frequently updating elements, which might not yield any visual changes ... but the model claims so. So, if you are just about to drop something, then the list changes, then the mouse button goes up ... that drop would fail because the potential drop row got reset --- even though the user did see the changing list and could as well abort the dragging manually. Hover rows and drop rows are kind of similar concepts here. And we see that the hover row did not get reset but the drop row did, which was kind of strange anyway. We might want to bring both concepts closer together in the future. Look for "hoverRow: nil" for that other reset. =============== Diff against Morphic-mt.1639 =============== Item was changed: ----- Method: PluggableListMorph>>updateList: (in category 'updating') ----- updateList: modelList "Keeps the current filter as it is." fullList := modelList. - self resetPotentialDropRow. self updateListFilter.!

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The Trunk: Morphic-mt.1639.mcz
by commits＠source.squeak.org 02 Apr '20

02 Apr '20

Marcel Taeumel uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-mt.1639.mcz ==================== Summary ==================== Name: Morphic-mt.1639 Author: mt Time: 2 April 2020, 9:57:01.627769 am UUID: f6179063-73e6-7d47-b156-db672067b49a Ancestors: Morphic-eem.1638 Fixes some unnecessary visual updates in lists, which caused extra (maybe expensive) model access: (1) Menu invocation for list items should first check whether to update the selection and then ask the model #okToChange. (2) Avoid scrolling to the selection to be visible if there is no change in the selection index. Only make users aware of changes. Models can still force such scrolling with de-selecting and immediately selecting an item. --- If list contents changed, the list filter got updated and tried to re-select the same element in the (maybe filtered) list. That caused the redunant updates and scrolling. (3) To make (2) work, the must not clear the selectedRow in LazyListMorph because PluggableListMorph has no own tracking of the selected row. =============== Diff against Morphic-eem.1638 =============== Item was changed: ----- Method: LazyListMorph>>listChanged (in category 'layout') ----- listChanged "set newList to be the list of strings to display" listItems := nil. listIcons := nil. listFilterOffsets := nil. maxWidth := nil. + "selectedRow := nil. --- avoid reset to keep UI stable. See PluggableListMorph >> #selectionIndex and #selectionIndex:." - selectedRow := nil. selectedRows := PluggableSet integerSet. preSelectedRow := nil. self layoutChanged. self changed. ! Item was changed: ----- Method: PluggableListMorph>>mouseDown: (in category 'event handling') ----- mouseDown: evt | selectors row | row := self rowAtLocation: evt position. evt yellowButtonPressed "First check for option (menu) click" ifTrue: [ + ((self selectionIndex ~= row + and: [self class menuRequestUpdatesSelection]) + and: [model okToChange]) ifTrue: [ + "Models depend on the correct selection:" + self changeModelSelection: (self modelIndexFor: row)]. - (self class menuRequestUpdatesSelection and: [model okToChange]) ifTrue: [ - "Models depend on the correct selection:" - self selectionIndex = row - ifFalse: [self changeModelSelection: (self modelIndexFor: row)]]. ^ self yellowButtonActivity: evt shiftPressed]. row = 0 ifTrue: [^super mouseDown: evt]. "self dragEnabled ifTrue: [aMorph highlightForMouseDown]." selectors := Array with: #click: with: (doubleClickSelector ifNotNil:[#doubleClick:]) with: nil with: (self dragEnabled ifTrue:[#startDrag:] ifFalse:[nil]). evt hand waitForClicksOrDrag: self event: evt selectors: selectors threshold: HandMorph dragThreshold "pixels".! Item was changed: ----- Method: PluggableListMorph>>selectionIndex: (in category 'selection') ----- selectionIndex: viewIndex "Called internally to select the index-th item." + self selectionIndex = viewIndex ifTrue: [^ self]. + self unhighlightSelection. self listMorph selectedRow: (viewIndex min: self listSize). self highlightSelection. self scrollSelectionIntoView.!

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Minor but annoying styling bug
by Stéphane Rollandin 01 Apr '20

01 Apr '20

Hello, There is a minor but irritating bug in parentheses emphasing. To see it, please load the attached morph (a workspace) in a 5.3 image. On the line indicated by the arrow, an opening parenthesis that gets automatically highlighted in bold will stay so instead of reverting to normal. To try it: erase that line, type anything, open a parenthesis (and if you have auto-enclose on as it is by default, remove the closing one that just appeared) then type a closing parenthesis. The first one is now bold. Keep typing: it will stay bold. This rather annoying, because there is no simple way to revert to normal emphasis: one needs to type another parenthesis and erase the bold one. This happens only on some lines, and it seems also only if bold text is already present before and after these lines. Stef

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