mtpaint 3.49.12- April 2016

[wjaguar]

From what I see, options in 'Image->Preferences' are inaccessible through CLI:

OK, I'll open it for scripting.
However:

echo 'undoMBlimit=128' >> ~/.mtpaint

is a perfectly legitimate solution.
And anyway, the idea was that user's own copy of mtPaint is already configured to his satisfaction.

2. I can't save an image as JPEG (if source image was of a different type), because for some reason JPEG2000 takes precedence over it:

Thanks for noticing this mistake. Now, among matches from the beginning, the shortest will be preferred, instead of the first. Patch is attached.

Btw, any chance for exit code other than 0 in case if an error occured?

Done in the same patch (exit code 1 if error in scripting mode).

[wjaguar]

what library do you recommend for jpeg-2000 support?

Neither. Both are extremely ugly and wasteful.
Jasper is more widespread, and stable (because unmaintained). OpenJPEG has had version 2.0 released in December 2012 but I haven't even tested compiling with it - maybe it had improved, but I've lost all hope already.

[don570]

I've made new debian packages for Ubuntu lucid, precise and Trusty tahr.

They work well with scripts

I could use the system clipboard to transfer an image back and forth
between mtpaint and libreOffice writer.

I tested wacom tablet with Ubuntu trusty tahr and it worked well.
The locales worked as well.



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[SFR]

Thanks a lot for the patch, Dmitry - both things are working fine now:

Code: Select all

# ./mtpaint --cmd -file/open=photo.jpg -image/rotate=45; echo $?
Loading JPEG image - Please Wait ...
********************
You have not allocated enough memory in the Preferences window for this operation.
[ OK ]
1
# 
# ./mtpaint --cmd -file/open=image.png -file/as format=jpeg; echo $?
Loading PNG image - Please Wait ...
********************
Saving JPEG image - Please Wait ...
********************
0
# 

OK, I'll open it for scripting.
However:

echo 'undoMBlimit=128' >> ~/.mtpaint

is a perfectly legitimate solution.
And anyway, the idea was that user's own copy of mtPaint is already configured to his satisfaction.

Oh, it's not so crucial - after all the end effect will be practically the same in both cases.

Thanks again &
Greetings!

[don570]

version 3.44.88 available on first post

tested with the following commands in terminal...

...To convert to tif

mtpaint --cmd -file/open=/root/Juncker.jpg -file/as format=tif

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Here is output of a 45 degree rotation...

mtpaint --cmd -file/open=/root/Juncker.jpg -image/free=45 -file/as format=tif

[don570]

For people using Ubuntu Lucid , Precise or Trusty Tahr

I made the debian packages again for mtpaint version 3.44.88
and posted on first post.

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Its possible to have an interesting mirror effect with a single command.
Start with a single image called head.tif in home folder.
Combine the operations on a single line. Red is the color A. 'zad' is
name of output file. As an exercise put a gausian blur in the command
line as well.

Code: Select all

mtpaint --cmd -file/open=head.tif -image/free=45  -image/resize=mirror w=x2 -file/as=zad

[don570]

Here's another example of several operations in a line.
(90 degree rotation, edge effect , then convert to greyscale)

Code: Select all

-image/'Rotate Anti-Clockwise' -effects/edge=mt   -effects/greyscale

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Another example:
Resize a document while the Color A is green

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-image/'Resize Canvas ...' w=x1.5

[don570]

inkscapelite program is useful. Here's an example....

Make a vertical border in inkscapelite, such as following...



Save graphic to your Home folder /root in SVG format.
Launch terminal and write..

Code: Select all

mtpaint --cmd -file/open=border.svg -image/free=45  -image/resize=mirror w=x2 -file/as=zad

The result is a diamond shape that shows transparency.
The output file is PNG format , not SVG
because mtpaint can't save to SVG format (but can open it.)

[don570]

If you don't want to use inkscapelite it is still possible to obtain an
image that shows transparency.

To explain, here is an image that has been rotated 45 degrees
and mirrored.

Code: Select all

-image/free=45  -image/resize=mirror w=x2

It shows transparency because it has already been saved to disk with
transparency number = zero (0) i.e. black is transparent color.
Red is the color A



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We can make output more transparent by making Color A = black i.e. 0
before we apply script line..

Code: Select all

-image/free=45  -image/resize=mirror w=x2

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[jamesbond]

wjaguar, thank you for your previous fix.

I've found another one. I sent an email to your sourceforge email. Let's see which one gets to you first If the email works next time I'll only report it from that channel.

There is an issue with freetype text option, starting from 3.44.81 (commit 42f0a48488d53a5abd8ff0df7795005cd8fac261).

cheers!

[wjaguar]

There is an issue with freetype text option, starting from 3.44.81

From 3.44.80, in fact. Thanks, you've uncovered a really nasty memory-corruption bug: I forgot to allocate in-tape memory for one kind of V-code widgets. Patch is attached (should be applicable to any version from 3.44.80 onwards).

[don570]

Here are some script lines that worked when I tested.

This divides up image into segment areas

Code: Select all

 -image/segment  threshold=7   

... and this will remove an area of solid paint and put a halo effect around it

Code: Select all

-effect/difference outer=77 inner=9

[don570]

Here is script that will process (=scale) a folder of png images
/root/my_images/*.png
The names of output files are changed with a suffix
so that they can be easily spotted.
The original images are untouched.
The script can be easily modified to change format and suffix.
Whitespace is allowed in names.

Code: Select all

#!/bin/bash

for ZAD in /root/my_images/*.png ;do
  SUFFIX=_mod
  mtpaint --cmd -file/open="$ZAD" -image/scale w=x0.5 -file/as="$ZAD"$SUFFIX 
  mv -f  "$ZAD"$SUFFIX.png   "${ZAD%.png}"$SUFFIX.png
done

[wjaguar]

I added some more scripting capabilities to mtPaint.
Through use of invisible - yet scriptable - dialogs, select and copy/paste now can be done from script. Like this:

Code: Select all

-s/select x=10 y=10 width=63 height=63 -e/copy -e/save/1
-e/paste x=200 y=200 swap
-e/centre x=100 y=100
-s/select x0=20 y0=20 x1=50 y1=50 -s/outline -s/ellipse

Color selectors now also are scriptable. Like this:

Code: Select all

-p/edit=a colour=blue =b c=#55AAFF alpha=255 sel=85 mask=0
-p/pal =1 col=#007FFF =10 col=#7FFF00 from=1 to=10 scale=srgb

Palette indices for A and B can be selected either through the regular color chooser in Edit menu, or through invisible items in Palette menu. Like this:

Code: Select all

-e/col a=10 b=20
-p/a=10 -p/b=20

The latter two (Palette->A and Palette->B), when editing an utility channel, switch to setting channel value.

[don570]

Code: Select all

colour=blue

Americans spell the word colour as color
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Do you support all the SVG colors?

bsvg-0.1d.tar.gz

Code: Select all

bsvg -C [lists svg 'named colors' (1 color per line)]
bsvg firefox red pink - [prints to stdout and does not create file]

SVG 'named colors' (148):

aliceblue antiquewhite aqua aquamarine
azure beige bisque black
blanchedalmond blue blueviolet brown
burlywood cadetblue chartreuse chocolate
coral cornflowerblue cornsilk crimson
cyan darkblue darkcyan darkgoldenrod
darkgray darkgreen darkgrey darkkhaki
darkmagenta darkolivegreen darkorange darkorchid
darkred darksalmon darkseagreen darkslateblue
darkslategray darkslategrey darkturquoise darkviolet
deeppink deepskyblue dimgray dimgrey
dodgerblue firebrick floralwhite forestgreen
fuchsia gainsboro ghostwhite gold
goldenrod gray green greenyellow
grey honeydew hotpink indianred
indigo ivory khaki lavender
lavenderblush lawngreen lemonchiffon lightblue
lightcoral lightcyan lightgoldenrodyello lightgray
lightgreen lightgrey lightpink lightsalmon
lightseagreen lightskyblue lightslategray lightslategrey
lightsteelblue lightyellow lime limegreen
linen magenta maroon mediumaquamarine
mediumblue mediumorchid mediumpurple mediumseagreen
mediumslateblue mediumspringgreen mediumturquoise mediumvioletred
midnightblue mintcream mistyrose moccasin
navajowhite navy oldlace olive
olivedrab orange orangered orchid
palegoldenrod palegreen paleturquoise palevioletred
papayawhip peachpuff peru pink
plum powderblue purple red
rosybrown royalblue saddlebrown salmon
sandybrown seagreen seashell sienna
silver skyblue slateblue slategray
slategrey snow springgreen steelblue
tan teal thistle tomato
turquoise violet wheat white
whitesmoke yellow yellowgreen none 

[wjaguar]

Do you support all the SVG colors?

Most likely, yes and then some - it is gdk_color_parse() doing the conversion, which in GTK+1 calls XParseColor() and in GTK+2, pango_color_parse(). Either function knows 750+ color names:
/usr/share/X11/rgb.txt
pango-X.Y.Z/pango/pango_color_table.h

[don570]

I describe how to add a line of text to the top
of a folder of images

http://www.murga-linux.com/puppy/viewto ... 333#802333



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[don570]

New version 3.44.89 available on first post
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[jamesbond]

From 3.44.80, in fact. Thanks, you've uncovered a really nasty memory-corruption bug: I forgot to allocate in-tape memory for one kind of V-code widgets. Patch is attached (should be applicable to any version from 3.44.80 onwards).

Quick as always, thank you wjaguar.

[don570]

New debian versions (Lucid,Precise and Tahr) 3.44.89

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When I tested these with my Wacom bamboo tablet I found an odd behaviour.
It occurs in Ubuntu and Puppy linux.

Steps to reproduce:

1) Install recent version of mtpaint.
2) Check that wacom driver is installed
3) Set up the wacom driver and make sure that pressure is working in test area.
4) Use a brush (16 pt ) in image. I see that pressure is definitely working.
5) Set down my wacom pen and start painting with my mouse or try to paint a line
with line tool using my mouse.

Painting with mouse is now impossible until the user unticks size,flow boxes
preferences > tablet

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