Hi Phil. Excellent summary of the current mess! Yes, TextMorphs are the "views" , Editors handle the insertion/selection/menu logic, and Paragraphs lay out the text.
I've replaced Paragraph, with Pango Layouts to reuse a more customizable layout engine, until some kind soul rewrites completely Paragraph (and friends) to be as easy to use (and powerfull) as Pango (which i doubt it will happen in the next decade). Denis, unfortunately i had to handle other stuff related to my phd, and still couldn't release Gaucho/Shapes, I'm working on it now again. Here's a presentation i gave @ the pharo conf [1]. Glad to hear that you want to try to use it for Presently, will be out soon. [1] http://app.sliderocket.com:80/app/FullPlayer.aspx?id=fcff251e-29cd-49eb-89b3-e33349139ddf On Fri, Jul 20, 2012 at 4:26 PM, p...@highoctane.be <p...@highoctane.be> wrote: > So, there is the damn caret drawing code: > > Paragraph>>displaySelectionInLine: line on: aCanvas > | leftX rightX w caretColor | > selectionStart ifNil: [^self]. "No selection" > aCanvas isShadowDrawing ifTrue: [ ^self ]. "don't draw selection with shadow" > selectionStart = selectionStop > ifTrue: > ["Only show caret on line where clicked" > > selectionStart textLine ~= line ifTrue: [^self]] > ifFalse: > ["Test entire selection before or after here" > > (selectionStop stringIndex < line first > or: [selectionStart stringIndex > (line last + 1)]) ifTrue: [^self]. "No > selection on this line" > (selectionStop stringIndex = line first > and: [selectionStop textLine ~= line]) ifTrue: [^self]. "Selection ends on > line above" > (selectionStart stringIndex = (line last + 1) > and: [selectionStop textLine ~= line]) ifTrue: [^self]]. "Selection begins on > line below" > leftX := (selectionStart stringIndex < line first > ifTrue: [line ] > ifFalse: [selectionStart ])left. > rightX := (selectionStop stringIndex > (line last + 1) or: > [selectionStop stringIndex = (line last + 1) > and: [selectionStop textLine ~= line]]) > ifTrue: [line right] > ifFalse: [selectionStop left]. > selectionStart = selectionStop > ifTrue: > [rightX := rightX + 1. > w := self caretWidth. > caretRect := (leftX-w) @ line top corner: (rightX+w)@ line bottom. > self showCaret ifFalse:[^self]. > caretColor := self insertionPointColor. > 1 to: w > do: > [:i | > "Draw caret triangles at top and bottom" > > aCanvas fillRectangle: ((leftX - w + i - 1) @ (line top + i - 1) > extent: ((w - i) * 2 + 3) @ 1) > color: caretColor. > aCanvas fillRectangle: ((leftX - w + i - 1) @ (line bottom - i) > extent: ((w - i) * 2 + 3) @ 1) > color: caretColor]. > aCanvas fillRectangle: (leftX @ line top corner: rightX @ line bottom) > color: caretColor] > ifFalse: > [caretRect := nil. > aCanvas fillRectangle: (leftX @ line top corner: rightX @ line bottom) > color: self selectionColor] > > > > > Paragraph class>>insertionPointColor has the color. I was fed up of blue, > turned it red :-) > This one is hardcoded and could take a hint from the selection color > twiceDarker for example. > > Phil > > 2012/7/20 Denis Kudriashov <dionisi...@gmail.com<mailto:dionisi...@gmail.com>> > Hello > > 2012/7/20 Fernando Olivero > <fernando.oliv...@usi.ch<mailto:fernando.oliv...@usi.ch>> > Hi Sean, you can take a look at Athens-PangoCairo (in squeaksource). > > Using NativeBoost, i'm using the Pango layout library [1], and the > Pango-Cairo binding [2], to avoid laying out text using the outdated > (and messy) stuff in the image. > > Check out the classes: ParagraphDescription & AthensPangoCairoParagraph. > > I'm using them as the basis for the TextShape,LabelShape, and > EditableTextShape in Shapes / Gaucho ( using TextEditor, > SingleLineEditor ). > > Maybe somebody can do the same for Morphic? use Pango to layout the > text, and code a new TextMorph on top of it? > > How I can try your code? > Do you have ready image to play with it? > > I am very interested with clean and simple alternative to morphic. I want it > for Presenty framework. > > (But I really like morphic as live user interface environment) > > Best regards, > Denis > > > > > > > -- > Philippe Back > Dramatic Performance Improvements > Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail: > p...@highoctane.be<mailto:p...@highoctane.be> | Web: http://philippeback.eu | > Blog: http://philippeback.be > > High Octane SPRL > rue cour Boisacq 101 > 1301 Bierges > Belgium
