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Message-ID: <1465744303.5045.12.camel@ssalewski.de>
Subject: GtkSourceView, using current-line style for other elements also?
From: Stefan Salewski <mail@ssalewski.de>
To: gnome-devtools@gnome.org
Date: Sun, 12 Jun 2016 17:11:43 +0200
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File classic.xml

<!-- Global Settings -->
<style name="current-line"                background="#eeeeec"/>
<style name="current-line-number"         background="#eeeeec"/>

Is my feeling correct, that these global styles can not be used for
other syntax highlight purposes? The reason for the question is, that
all predefined color files define mostly foreground colors with high
contrast to background, and I would need one available predefined very
similar to background, current-line should be ok, but using it seems
not to work. My nim.lang is fine  with my own color scheme, but I
considered making it more compatible with other existing color schemes.
And for that I would need an existing color for the vertical bars at th
e left in http://ssalewski.de/tmp/NEd-SHD.png

From sebastien.wilmet@gmail.com  Wed Jun 15 13:48:38 2016
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Date: Wed, 15 Jun 2016 15:48:32 +0200
From: =?iso-8859-1?Q?S=E9bastien?= Wilmet <swilmet@gnome.org>
To: Stefan Salewski <mail@ssalewski.de>
Subject: Re: GtkSourceView, using current-line style for other elements also?
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Hi Stefan,

On Sun, Jun 12, 2016 at 05:11:43PM +0200, Stefan Salewski wrote:
> File classic.xml
> 
> <!-- Global Settings -->
> <style name="current-line"                background="#eeeeec"/>
> <style name="current-line-number"         background="#eeeeec"/>
> 
> Is my feeling correct, that these global styles can not be used for
> other syntax highlight purposes? The reason for the question is, that
> all predefined color files define mostly foreground colors with high
> contrast to background, and I would need one available predefined very
> similar to background, current-line should be ok, but using it seems
> not to work. My nim.lang is fine  with my own color scheme, but I
> considered making it more compatible with other existing color schemes.
> And for that I would need an existing color for the vertical bars at th
> e left in http://ssalewski.de/tmp/NEd-SHD.png

Yes you can call the gtk_source_style_scheme_get_style() function.

--
Sébastien
From mail@ssalewski.de  Thu Jun 23 21:17:42 2016
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Message-ID: <1466716656.10860.10.camel@ssalewski.de>
Subject: createSourceMark()
From: Stefan Salewski <mail@ssalewski.de>
To: gnome-devtools@gnome.org
Date: Thu, 23 Jun 2016 23:17:36 +0200
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Have just added the first draft of "Goto definition" functionality to
the Nim GTK editor.

http://ssalewski.de/tmp/NEd-InputFont.png


Is it intended that createSourceMark() does only work when iter is at
the beginning of the line? For example, the code below does not
generate the visible mark (list add) as shown in the picture above when
I uncomment "discard iter.forwardChar". That behaviour may be ok, but
it was not clear to me reading the docs.

proc markLocation(view: var NimView; ln, cn: int) =
  var startIter, endIter, iter: TextIterObj
  view.freeErrors
  let buffer: gtksource.Buffer = gtksource.buffer(view.getBuffer)
  buffer.getStartIter(startIter)
  buffer.getEndIter(endIter)
  buffer.removeTagByName(ErrorTagName, startIter, endIter)
  for i in 0 .. MaxErrorTags:
    buffer.removeTagByName($i, startIter, endIter)
  buffer.removeSourceMarks(startIter, endIter, NullStr)
  view.showLinemarks = false
  var attrs = newMarkAttributes()
  var color = RGBAObj(red: 0.5, green: 0.5, blue: 0.5, alpha: 0.2)
  attrs.background = color
  attrs.iconName = "list-remove"
  view.setMarkAttributes(ErrorTagName, attrs, priority = 1)
  objectUnref(attrs)
  buffer.getIterAtLineIndex320(startIter, ln.cint, cn.cint)
  iter = startIter
  if iter.line == 0:
    discard iter.backwardLine
  else:
    discard iter.backwardLine
    discard iter.forwardLine
  #discard iter.forwardChar
  discard buffer.createSourceMark(NullStr, ErrorTagName, iter)
  let tag: TextTag = buffer.tagTable.lookup(ErrorTagName)
  assert(tag != nil)
  discard startiter.backwardChar
  if startIter.hasTag(tag):
    discard startIter.forwardToTagToggle(tag)
  discard startiter.forwardChar
  endIter = startIter
  iter = startIter
  discard iter.forwardToLineEnd
  discard endIter.forwardChar
  discard endIter.forwardFindChar(advanceErrorWord, userData = nil, limit = iter)
  buffer.applyTag(tag, startIter, endIter)
  view.showLinemarks = true


Another question, in the code above I needed 5 lines to move the cursor
at the start of the current line. Is there a simpler way?

From mail@ssalewski.de  Thu Jun 23 21:32:18 2016
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Subject: Re: GtkSourceView, using current-line style for other elements also?
From: Stefan Salewski <mail@ssalewski.de>
To: =?ISO-8859-1?Q?S=E9bastien?= Wilmet <swilmet@gnome.org>
Date: Thu, 23 Jun 2016 23:32:13 +0200
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On Wed, 2016-06-15 at 15:48 +0200, Sébastien Wilmet wrote:
> Hi Stefan,
> 
> On Sun, Jun 12, 2016 at 05:11:43PM +0200, Stefan Salewski wrote:
> > 
> > File classic.xml
> > 
> > <!-- Global Settings -->
> > <style name="current-line"                background="#eeeeec"/>
> > <style name="current-line-number"         background="#eeeeec"/>
> > 
> > Is my feeling correct, that these global styles can not be used for
> > other syntax highlight purposes? The reason for the question is,
> > that
> > all predefined color files define mostly foreground colors with
> > high
> > contrast to background, and I would need one available predefined
> > very
> > similar to background, current-line should be ok, but using it
> > seems
> > not to work. My nim.lang is fine  with my own color scheme, but I
> > considered making it more compatible with other existing color
> > schemes.
> > And for that I would need an existing color for the vertical bars
> > at th
> > e left in http://ssalewski.de/tmp/NEd-SHD.png
> Yes you can call the gtk_source_style_scheme_get_style() function.
> 

Yes, I found that myself already:

var st: gtksource.Style = gtksource.getStyle(style, "text")
assert(st != nil)
objectGet(st, "foreground", addr str, nil)

This way I can access the default text foreground and background
colors. Unfortunately it took me some hours to find that...

But it would be nice if we could use these colors

  <!-- Global Settings -->
  <style name="current-line"                background="#eeeeec"/>
  <style name="current-line-number"         background="#eeeeec"/>
  <style name="draw-spaces"                 foreground="#babdb6"/>
  <style name="background-pattern"          background="#f3f3f3"/>

  <!-- Bracket Matching -->
  <style name="bracket-match"               foreground="white" background="gray" bold="true"/>
  <style name="bracket-mismatch"            foreground="white" background="red" bold="true"/>

  <!-- Right Margin -->
  <style name="right-margin"                foreground="#000000" background="#000000"/>

  <!-- Search Matching -->
  <style name="search-match"                background="yellow"/>


in the same way as these starting with :def

  <!-- Comments -->
  <style name="def:comment"                 foreground="blue"/>


Seems not to work, in the *.lang files the map-to works not with the "Global Settings".