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  My Gimp 3.0 Plug-in (group_selected_layers)
Posted by: Newman - 11-15-2024, 04:46 AM - Forum: Gimp 2.99 & Gimp 3.0 - Replies (11)

Plug-in: group-selected-layers
Description: nests all currently selected layers inside a new group layer.  

Tested and working on version 2.99.19 - commit fe6e1d7

Any feedback welcome Smile


Code:
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
#  SAMPLE PLUG-IN USED AS REFERENCE/TEMPLATE: test-file-plug-ins.py 2021-2024 Jacob Boerema
#
# Tested and working on version 2.99.19 - commit fe6e1d7
#
# Script path:
# ~/.config/GIMP/2.99/plug-ins/group_selected_layers/group_selected_layers.py


import sys

import gi
gi.require_version('Gimp', '3.0')
from gi.repository import Gimp

from gi.repository import GLib

VERSION = "0.2"
AUTHORS = "newinput"
COPYRIGHT = "newinput"
YEARS   = "2023-2024"

class GroupSelectedLayers (Gimp.PlugIn):

  def __init__(self):
      Gimp.PlugIn.__init__(self)
      self.test_cfg = None
      self.log = None

  ## GimpPlugIn virtual methods ##
  def do_set_i18n(self, _name):
      # We don't support internationalization here...
      return False

  def do_query_procedures(self):
      return [ 'group-selected-layers' ]

  def do_create_procedure(self, name):

      if name == 'group-selected-layers':
          procedure = Gimp.ImageProcedure.new(self, name,
                                              Gimp.PDBProcType.PLUGIN,
                                              self.group_selected_layers, None)
          procedure.set_image_types("*")
          procedure.set_sensitivity_mask(Gimp.ProcedureSensitivityMask.ALWAYS)
          procedure.set_menu_label('group-selected-layers-label')
          procedure.add_menu_path('<Image>/Filters/Development/Python-Fu/')
          procedure.set_documentation('Run group-selected-layers',
                                      'Run group-selected-layers',
                                      name)

      else:
          return None

      procedure.set_attribution(AUTHORS, COPYRIGHT, YEARS)
      return procedure

  def group_selected_layers(self, procedure, run_mode, image,
                       n_drawables, config, run_data):

      # => create new group
      new_group = Gimp.GroupLayer.new(image, "my-new-group")

      # => record currently selected layers
      #
      #    (is needed since inserting a new layer replaces the current selection with just the newly inserted layer)
      #  
      selected_layers = image.get_selected_layers()
      parents = []

      for layer in selected_layers:
          parent = layer.get_parent()
          if parent not in parents:
              parents.append(parent)

      # if same parents
      #     if all selected layers are under the same parent layer, nest the new group layer inside of it
      if len(parents) == 1:                
          new_group_parent = parents[0]
          topmost_position = min([image.get_item_position(layer) for layer in selected_layers])

      # if different parents
      #     if selected layers are nested under different parent layers, insert group layer in the main stack, unnested
      elif len(parents) > 1:              
          new_group_parent = None
          topmost_position = 0

      # if no parents found (should not happen)
      #     use main stack as default here to try and not break anything. should not be able to reach this point ever though.
      else:
          new_group_parent = None
          topmost_position = 0
          print("ERROR: could not get any parents from selected layers")


      # => insert new group into image
      image.insert_layer(
              new_group,           # group to insert
              new_group_parent,    # parent nest group inside of. None = unnested
              topmost_position     # index/stack-postition within parent (0 = insert as topmost layer within parent)
      )

      for selected_layer in selected_layers:
          image.reorder_item(
                  selected_layer,  # layer to reorder
                  new_group,       # parent to nest inside
                  -1               # index/stack-postition within parent (-1 = insert as bottommost layer within parent)
          )

      return procedure.new_return_values(Gimp.PDBStatusType.SUCCESS, GLib.Error())


Gimp.main(GroupSelectedLayers.__gtype__, sys.argv)

Edit: a better version of the script is posted later on in this thread

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  Is layer Composite Space the wrong way round in GIMP?
Posted by: jez9999 - 11-14-2024, 05:02 PM - Forum: General questions - Replies (4)

I've been looking into the GIMP Layers tab's "Composite Space" option, and I'm rather confused by it.  Given a background of white pixels and a foreground of black pixels at 50% opacity, I'd expect the RGB linear colour space to give me sample merged pixels of 128,128,128 because that's about 50% of 255,255,255.  However, with RGB (linear) selected I actually get pixels of 188,188,188 - significantly lighter.

   

When I select RGB (perceptual), though, I actually get the result I'd have expected from the linear model; pixels are darker at 128,128,128 - half way between white and black.

   

Is this a bug with GIMP's options here being the wrong way round, or am I misunderstanding something?

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  Change Default Text
Posted by: DarrellS - 11-14-2024, 04:28 PM - Forum: General questions - Replies (3)

How do you change the default text in version 2.10.38 (revision 1)?

I would like my text to be bold without having to click the Bold button every time I create text.

I wouldn't need to do this but ever since Gimp updated on it's own to this version, my text has been so thin I can hardly read it. It looks like the same font but it looks different than the text that was created using the earlier version.

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  non-destructive filter not OK?
Posted by: Dsbbw2020 - 11-14-2024, 09:58 AM - Forum: Gimp 2.99 & Gimp 3.0 - Replies (2)

Hello,

Description of the problem:

I want to use the recipe for "Freaky Details" (https://www.gimp-forum.net/Thread-Look-m...-Gimp-2-10), That is:

 - Make two copies of your original image (three layers total)
 - Color>Invert the top layer
 - Filters>Blur>Selective Gaussian blur the top layer (radius around 5 px, max delta around 0.2)
 - Add a layer group at the top, and move the top two layers in it
 - Set the color-inverted layer to Vivid light mode
 - Set the layer group to Overlay mode

If I do so in Gimp3.0 RC1 everything is OK

Next I change the original image with the function: color -> exposure (+ or - , both tested)
After applying the recipe the result is now unexpected. Sie screen1.jpg.

If I remove the non-destructive filter (exposure) from the top image (the inverted one) everything is OK.
See screen2.jpg.

   

   

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  Controlling Hue Chroma ?
Posted by: Alpha504 - 11-14-2024, 07:45 AM - Forum: Scripting questions - Replies (6)

Hi,

I would like to modify the hue-chroma of some images.

I tried the following function:


Code:
(gimp-drawable-hue-chroma drawable MODE-REPLACE -60 20 0 100.0)

But it gives me an error:


Code:
Error: eval: unbound variable: gimp-drawable-hue-chroma

If someone knows which command to use and what are the parameters ?

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  Resize and convert a SVG image using a gimp script ?
Posted by: Alpha504 - 11-12-2024, 04:24 PM - Forum: Scripting questions - Replies (9)

I'm using gimp 2.10 on a Debian 12 system.

My gimp script successfully convert the SVG to PNG, but it doesn't resize it.

Here is my script ~/.config/GIMP/2.10/scripts/convertresize.scm:

Code:
(define (convertresize in_filename out_filename width height)
   (let* (
           (image (car (gimp-file-load RUN-NONINTERACTIVE in_filename "")))
           (drawable (car (gimp-image-get-active-layer image)))
           (gimp-image-scale-full image width height INTERPOLATION-CUBIC)
           (gimp-layer-resize-to-image-size drawable)
       )
       (gimp-file-save RUN-NONINTERACTIVE image drawable out_filename out_filename)
       (gimp-image-delete image)
   )
)

 I launch it with the following command:
Code:
gimp -i -b '(convertresize "./image.svg" "./image.png" 24 24)' -b '(gimp-quit 0)'

So, if someone knows what I'm doing wrong ?

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  Missing DLL
Posted by: gasMask - 11-12-2024, 02:48 PM - Forum: Gimp 2.99 & Gimp 3.0 - Replies (4)

Windows 10 64 bit, GIMP 3 RC1 

Hi,

I just installed GIMP 3 RC1. The first thing I did was hook up a pattern folder in the Preferences dialog.
   

When I restarted GIMP 3, I get a slew of repeated errors, one for each file I suppose, listed in the console.
   
Is this an issue? Do I need to report it? Is there a fix?

Thanks for your attention.
Charles

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  Gimp 3.0.0. rc1 AppImage
Posted by: Tas_mania - 11-11-2024, 10:15 PM - Forum: Alternate Gimp packagings - Replies (28)

It's now released and I made a test appimage. This is still work in progress for the developers.
Debian-derived systems could try Gimp 3.rc1 from my github.



   

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  Is it possible to edit a Photoshop mockup file in Gimp on a Macbook?
Posted by: Lognill - 11-11-2024, 09:09 PM - Forum: General questions - Replies (2)

I'm new to Gimp. Is it possible to edit a Photoshop mockup file in Gimp on a Macbook? In Photoshop, I was able to just double click the "Edit Me" section/thumbnail and a new tab would open where I can place my design, but I can't do the same in Gimp. I want to attach a screenshot to give an example, but I couldn't due to the file being too large. Watching videos to help me reduce the screenshot file was no help either.

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  Printing problems
Posted by: Thunderace7 - 11-11-2024, 05:43 PM - Forum: Windows - Replies (7)

Hi.
I'm using Gimp 2.10.38 on a Windows 11 PC and I am having trouble printing photos.  I load the photo and edit it but the colour changes I make are not reflected in the printed photo.  I am using a Canon Pixma TS8350 printer and have updated the drivers.
The photo I am trying to print is coming out a little pale and with a slight blue hue.  I used the Curves tool to increase green and red and these changes are shown in the screen image.  When I print the picture the printed image is no different from the original.  I am probably doing something wrong but I can't see what it is.
Thanks.
Chris.

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