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WIP Rotational brushes now supported

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Unlike "directional" brushes, in which a 3x3 grid representing the
8 cardinal directions (45 degree steps) is used, only a single brush
image is required, and Tux Paint will rotate it between 0 and 360 degrees,
depending on the direction the mouse is going.

The brush's ".dat" file should contain a line consisting of the word
"rotate".

Note: This adds a dependency on "SDL_gfx" library (Homepage:
https://www.ferzkopp.net/wordpress/2016/01/02/sdl_gfx-sdl2_gfx/
SourceForge project page: https://sourceforge.net/projects/sdlgfx/)
as this feature use it's "rotozoom" functionality.

WIP -- Doesn't handle animated brushes correctly yet!

Closes https://sourceforge.net/p/tuxpaint/feature-requests/122/
This commit is contained in:
Bill Kendrick 2021-09-06 23:44:35 -07:00
parent 8a97e83a7b
commit a3080eef18
27 changed files with 316 additions and 110 deletions
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30
docs/gl_ES.UTF-8/EXTENDING.txt
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@ -5,7 +5,7 @@
Copyright © 2002-2021 por varios colaboradores; vexa AUTHORS (AUTORES).
http://www.tuxpaint.org/
31 de Maio de 2021
6 de Setembro de 2021
----------------------------------------------------------------------
@ -221,17 +221,27 @@ Pinceis
Engada unha liña que conteña a palabra «directional» ao ficheiro de
datos debrush's.
Pinceis direccionais animados
Rotating Brushes
Pode mesturar funcións animadas e direccionais nun pincel. Use ambas
as opcións («frames=N» e «directional»), en liñas separadas no
ficheiro «.dat» do pincel.
As of Tux Paint version 0.9.27, you may now create rotating brushes.
As the brush is used, it is rotated 360 degrees, depending on the
direction the brush is going.
Coloque o pincel de xeito que cada conxunto de formas 3x3 de
dirección estea distribuído nunha ampla imaxe PNG. Por exemplo, se o
pincel ten 30x30 e hai 5 fotogramas, sería de 450x90. (Os píxeles
máis a esquerda de 150x90 da imaxe representan as 9 formas de
dirección do primeiro cadro, por exemplo).
Engada unha liña que conteña a palabra «rotate» ao ficheiro de datos
debrush's.
Animated Directional or Rotating Brushes
You may mix both animated and either directional or rotating
features into one brush. Use both options desired ("frames=N" and
"directional" or "rotate"), in separate lines in the brush's ".dat"
file.
For directional brushes, lay the brush out so that each 3x3 set of
directional shapes are laid out across a wide PNG image. For
example, if the brush is 30x30 and there are 5 frames, it would be
450x90. (The leftmost 150x90 pixels of the image represent the 9
direction shapes for the first frame, for example.)
Coloque os ficheiros PNG de pincel (e calquera ficheiro de texto de
datos) no directorio «brushes».