问题
With gimp fu, I can save the content of one layer (at least, that is how I interprete the definition of gimp_file_save
because it takes the parameter drawable
).
Now, I have the following script:
from gimpfu import *
def write_text():
width = 400
height = 100
img = gimp.Image(width, height, RGB)
img.disable_undo()
gimp.set_foreground( (255, 100, 20) )
gimp.set_background( ( 0, 15, 40) )
background_layer = gimp.Layer(
img,
'Background',
width,
height,
RGB_IMAGE,
100,
NORMAL_MODE)
img.add_layer(background_layer, 0)
background_layer.fill(BACKGROUND_FILL)
text_layer = pdb.gimp_text_fontname(
img,
None,
60,
40,
'Here is some text',
0,
True,
30,
PIXELS,
'Courier New'
)
drawable = pdb.gimp_image_active_drawable(img)
# Either export text layer ...
# pdb.gimp_file_save(img, drawable, '/temp/tq84_write_text.png', '?')
# .... or background layer:
pdb.gimp_file_save(img, background_layer, '/temp/tq84_write_text.png', '?')
register(
proc_name = 'tq84_write_text',
blurb = 'tq84_write_text',
help = 'Create some text',
author = 'Rene Nyffenegger',
copyright = 'Rene Nyffenegger',
date = '2014',
label = '<Toolbox>/Xtns/Languages/Python-Fu/_TQ84/_Text',
imagetypes = '',
params = [],
results = [],
function = write_text
)
main()
When I use pdb.gimp_file_save(img, drawable, '/temp/tq84_write_text.png', '?')
to save the image, It will only export the "text" layer. Yet, If I use pdb.gimp_file_save(img, background_layer, '/temp/tq84_write_text.png', '?')
it will only export the background. So, how can I export both layers into one image (as the menu File -> Export As
would do).
回答1:
What is done internally, even by GIMP file-expoerter plug-ins for all formnats is: duplicate the image, merge all visible layers, them save the resulting drawable.
This is easier, and take less resources than it sounds. Effectively you just have to replace your save line
pdb.gimp_file_save(img, background_layer, '/temp/tq84_write_text.png', '?')
by
new_image = pdb.gimp_image_duplicate(img)
layer = pdb.gimp_image_merge_visible_layers(new_image, CLIP_TO_IMAGE)
pdb.gimp_file_save(new_img, layer, '/temp/tq84_write_text.png', '?')
pdb.gimp_image_delete(new_image)
(The last call just "deletes" the new image from program memory, freeing up the resources, of course)
回答2:
I have found out that if you pass None
as the drawable
argument to gimp_xcf_save()
, GIMP (at least version 2.8) will save all layers of the image to the XCF file:
pdb.gimp_xcf_save(0, image, None, 'file.xcf', 'file.xcf')
回答3:
What I found easiest was to flatten the image then just save using the first layer:
img.flatten()
pdb.gimp_file_save(img, img.layers[0], 'image.jpg', '?')
来源:https://stackoverflow.com/questions/26803732/how-do-i-save-export-all-layers-with-gimps-script-fu