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36fb075f99
1999-11-11 James Henstridge <james@daa.com.au> * doc/pygimp.sgml: updated documentation. * gimpmodule.c: applied patches from Hans Breuer to fix portability problems and also win32 compatibility. (lay_getattr): take is_rgb as a synonym for is_color/is_colour. (drw_parasite_attach): (drw_parasite_detach): change to new naming scheme. (img_parasite_attach): (img_parasite_detach): same here. (gimp_Parasite_find): (gimp_Parasite_attach): (gimp_Parasite_detach): same here. (chn_getattr): added is_rgb as a synonym for is_colour, and is_layer_mask as a synonym for layer_mask.
3016 lines
32 KiB
HTML
3016 lines
32 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//Norman Walsh//DTD DocBook HTML 1.0//EN">
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<HTML
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><HEAD
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><TITLE
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>Gimp Objects</TITLE
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CONTENT="Modular DocBook HTML Stylesheet"><LINK
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><TR
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>Gimp Python Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="gimp-module-procedures.html"
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>Prev</A
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WIDTH="80%"
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><TD
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WIDTH="10%"
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ALIGN="right"
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="GIMP-OBJECTS"
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>Gimp Objects</A
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></H1
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><P
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>Gimp-Python implements a number of special object types that
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represent the different types of parameters you can pass to a PDB
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procedure. Rather than just making these place holders, I have
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added a number of members and methods to them that allow a lot of
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configurability without directly calling PDB procedures.</P
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><P
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>There are also a couple of extra objects that allow low
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level manipulation of images. These are tile objects (working)
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and pixel regions (not quite finished).</P
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="IMAGE-OBJECT"
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>Image Object</A
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></H2
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><P
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>This is the object that represents an open image. In this
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section, <TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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> represents a generic
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image object.</P
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><DIV
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CLASS="SECT3"
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><H3
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CLASS="SECT3"
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><A
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NAME="IMAGE-OBJECT-MEMBERS"
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>Image Members</A
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></H3
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><P
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></P
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><P
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></P
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><DL
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>active_channel</I
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></TT
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></DT
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><DD
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><P
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>This is the active channel of the image. You can
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also assign to this member, or
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<TT
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CLASS="PARAMETER"
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><I
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>None</I
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></TT
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> if there is no active
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channel.</P
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>active_layer</I
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></TT
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></DT
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><DD
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><P
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>This is the active layer of the image. You can
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also assign to this member, or
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<TT
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CLASS="PARAMETER"
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><I
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>None</I
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></TT
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> if there is no active
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layer.</P
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>base_type</I
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></TT
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></DT
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><DD
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><P
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>This is the type of the image (eg RGB, INDEXED).</P
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>channels</I
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></TT
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></DT
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><DD
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><P
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>This is a list of the channels of the image.
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Altering this list has no effect, and you can not assign
|
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to this member.</P
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></DD
|
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>cmap</I
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></TT
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></DT
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><DD
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><P
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>This is the colour map for the image.</P
|
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
|
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>filename</I
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></TT
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></DT
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><DD
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><P
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>This is the filename for the image. A file load
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or save handler might assign to this.</P
|
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>height</I
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></TT
|
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></DT
|
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><DD
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><P
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>This is the height of the image. You can't assign
|
|
to this member.</P
|
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></DD
|
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>floating_selection</I
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></TT
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></DT
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><DD
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><P
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>The floating selection layer, or
|
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<TT
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CLASS="PARAMETER"
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><I
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>None</I
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></TT
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> if there is no floating
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selection.</P
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></DD
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><DT
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><TT
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CLASS="REPLACEABLE"
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><I
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>image</I
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></TT
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>.<TT
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CLASS="PARAMETER"
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><I
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>layers</I
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></TT
|
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></DT
|
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><DD
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><P
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>This is a list of the layers of the image.</P
|
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></DD
|
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><DT
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><TT
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CLASS="REPLACEABLE"
|
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><I
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>image</I
|
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></TT
|
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>.<TT
|
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CLASS="PARAMETER"
|
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><I
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>selection</I
|
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></TT
|
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></DT
|
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><DD
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><P
|
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>The selection mask for the image.</P
|
|
></DD
|
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><DT
|
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><TT
|
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CLASS="REPLACEABLE"
|
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><I
|
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>image</I
|
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></TT
|
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>.<TT
|
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CLASS="PARAMETER"
|
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><I
|
|
>width</I
|
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></TT
|
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></DT
|
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><DD
|
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><P
|
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>This is the width of the image. You can't assign
|
|
to this member.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
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><H3
|
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CLASS="SECT3"
|
|
><A
|
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NAME="IMAGE-OBJECT-METHODS"
|
|
>Image Methods</A
|
|
></H3
|
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><P
|
|
></P
|
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><P
|
|
></P
|
|
><DL
|
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><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>add_channel</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
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><I
|
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>position</I
|
|
></TT
|
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>)</DT
|
|
><DD
|
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><P
|
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>Adds <TT
|
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CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
> to
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
> in position
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>position</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>add_layer</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>position</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Adds <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
> to
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
> in position
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>position</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>add_layer_mask</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mask</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Adds the mask <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mask</I
|
|
></TT
|
|
> to
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>clean_all</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Unsets the dirty flag on the image.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>disable_undo</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Disables undo for
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>enable_undo</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Enables undo for <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
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></TT
|
|
>.
|
|
You might use these commands round a plugin, so that the
|
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plugin's actions can be undone in a single step.</P
|
|
></DD
|
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><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
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><I
|
|
>image</I
|
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></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>flatten</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Returns the resulting layer after merging all the
|
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visible layers, discarding non visible ones and
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stripping the alpha channel.</P
|
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></DD
|
|
><DT
|
|
><TT
|
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CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_component_active</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
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>Returns true if <TT
|
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CLASS="PARAMETER"
|
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><I
|
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>component</I
|
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></TT
|
|
>
|
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(one of the <TT
|
|
CLASS="LITERAL"
|
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>*_CHANNEL</TT
|
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> constants) is
|
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active.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_component_visible</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Returns true if <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>
|
|
is visible.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>set_component_active</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>active</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Sets the activeness of
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>set_component_visible</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>active</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Sets the visibility of
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>component</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>lower_channel</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Lowers <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>lower_layer</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Lowers <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>merge_visible_layers</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>type</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Merges the visible layers of
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
> using the given merge
|
|
type.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>pick_correlate_layer</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Returns the layer that is visible at the point
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,y)</I
|
|
></TT
|
|
>, or
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>None</I
|
|
></TT
|
|
> if no layer matches.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>raise_channel</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Raises <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>raise_layer</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Raises <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>remove_channel</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Removes <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
> from
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>remove_layer</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Removes <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
> from
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>remove_layer_mask</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mode</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Removes the mask from
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>, with the given
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mode</I
|
|
></TT
|
|
> (either APPLY or
|
|
DISCARD).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>resize</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>width</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>height</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Resizes the image to size <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(width,
|
|
height)</I
|
|
></TT
|
|
> and places the old contents at
|
|
position <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,y)</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT2"
|
|
><H2
|
|
CLASS="SECT2"
|
|
><A
|
|
NAME="CHANNEL-OBJECT"
|
|
>Channel Objects</A
|
|
></H2
|
|
><P
|
|
>These objects represent a Gimp Image's colour channels.
|
|
In this section, <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
> will refer
|
|
to a generic channel object.</P
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="CHANNEL-OBJECT-MEMBERS"
|
|
>Channel Members</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>colour</I
|
|
></TT
|
|
>
|
|
or
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>color</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The colour of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>height</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The height of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>width</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The width of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The image the channel belongs to, or
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>None</I
|
|
></TT
|
|
> if it isn't attached
|
|
yet.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The channel's layer (??) or
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>None</I
|
|
></TT
|
|
> if one doesn't exist.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>layer_mask</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the channel is a layer mask.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>name</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The name of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>opacity</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The opacity of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>show_masked</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The show_masked value of the channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>visible</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non-zero if the channel is visible.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="CHANNEL-OBJECT-METHODS"
|
|
>Channel Methods</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>channel</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>copy</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>returns a copy of the channel.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT2"
|
|
><H2
|
|
CLASS="SECT2"
|
|
><A
|
|
NAME="LAYER-OBJECT"
|
|
>Layer Objects</A
|
|
></H2
|
|
><P
|
|
>Layer objects represent the layers of a Gimp image. In
|
|
this section I will refer to a generic layer called
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.</P
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="LAYER-OBJECT-MEMBERS"
|
|
>Layer Members</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>apply_mask</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The apply mask setting. (non zero if the layer
|
|
mask is being composited with the layer's alpha
|
|
channel).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>bpp</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The number of bytes per pixel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>edit_mask</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The edit mask setting. (non zero if the mask is
|
|
active, rather than the layer).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>height</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The height of the layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The image the layer is part of, or
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>None</I
|
|
></TT
|
|
> if the layer isn't
|
|
attached.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_floating_selection</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if this layer is the image's floating
|
|
selection.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mask</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The layer's mask, or <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>None</I
|
|
></TT
|
|
>
|
|
if it doesn't have one.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mode</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The mode of the layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>name</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The name of the layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>opacity</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The opacity of the layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>preserve_transparency</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The layer's preserve transparency setting.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="LAYER-OBJECT-METHODS"
|
|
>Layer Methods</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>add_alpha</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Adds an alpha component to the layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>copy</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>[alpha]</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Creates a copy of the layer, optionally with an
|
|
alpha layer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>create_mask</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>type</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Creates a layer mask of type
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>type</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>resize</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Resizes the layer to <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(w,
|
|
h)</I
|
|
></TT
|
|
>, positioning the original contents at
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,y)</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>scale</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>origin</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Scales the layer to <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(w, h)</I
|
|
></TT
|
|
>,
|
|
using the specified <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>origin</I
|
|
></TT
|
|
> (local
|
|
or image).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>set_offsets</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Sets the offset of the layer, relative to the
|
|
image's origin</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>layer</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>translate</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Moves the layer to <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x, y)</I
|
|
></TT
|
|
>
|
|
relative to its current position.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT2"
|
|
><H2
|
|
CLASS="SECT2"
|
|
><A
|
|
NAME="DRAWABLE-OBJECT"
|
|
>Drawable Objects</A
|
|
></H2
|
|
><P
|
|
>Both layers and channels are drawables. Hence there are a
|
|
number of operations that can be performed on both objects.
|
|
They also have some common attributes and methods. In the
|
|
description of these attributes, I will refer to a generic
|
|
drawable called <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.</P
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="DRAWABLE-OBJECT-MEMBERS"
|
|
>Drawable Members</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>bpp</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The number of bytes per pixel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_colour</I
|
|
></TT
|
|
>
|
|
or
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_color</I
|
|
></TT
|
|
>
|
|
or
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_rgb</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the drawable is colour.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_grey</I
|
|
></TT
|
|
>
|
|
or
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_gray</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the drawable is greyscale.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>has_alpha</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the drawable has an alpha channel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>height</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The height of the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>image</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The image the drawable belongs to.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>is_indexed</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the drawable uses an indexed colour
|
|
scheme.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>mask_bounds</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The bounds of the drawable's selection.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>name</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The name of the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>offsets</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The offset of the top left hand corner of the
|
|
drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>type</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The type of the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>visible</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the drawable is visible.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>width</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The width of the drawable.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="DRAWABLE-OBJECT-METHODS"
|
|
>Drawable Methods</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>fill</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>fill_type</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Fills the drawable with given
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>fill_type</I
|
|
></TT
|
|
> (one of the
|
|
<TT
|
|
CLASS="LITERAL"
|
|
>*_FILL</TT
|
|
> constants).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>flush</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Flush the changes to the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_pixel_rgn</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
>, [<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>dirty</I
|
|
></TT
|
|
>,
|
|
[<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
>])</DT
|
|
><DD
|
|
><P
|
|
>Creates a pixel region for the drawable. It will
|
|
cover the region with origin
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,y)</I
|
|
></TT
|
|
> and dimensions <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w
|
|
x h</I
|
|
></TT
|
|
>. The <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>dirty</I
|
|
></TT
|
|
>
|
|
argument sets whether any changes to the pixel region
|
|
will be reflected in the drawable (default is TRUE).
|
|
The <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
> argument sets whether
|
|
the pixel region acts on the shadow tiles or not
|
|
(default is FALSE). If you draw on the shadow tiles,
|
|
you must call
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>merge_shadow</B
|
|
></TT
|
|
>()
|
|
for changes to take effect.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_tile</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>row</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>col</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Get a tile at <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(row,
|
|
col)</I
|
|
></TT
|
|
>. Either on or off the
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
> buffer.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_tile2</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Get the tile that contains the pixel
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x, y)</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>merge_shadow</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Merge the shadow buffer back into the
|
|
drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>update</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>Update the given portion of the drawable.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT2"
|
|
><H2
|
|
CLASS="SECT2"
|
|
><A
|
|
NAME="TILE-OBJECT"
|
|
>Tile Objects</A
|
|
></H2
|
|
><P
|
|
>Tile objects represent the way Gimp stores information. A
|
|
tile is basically just a 64x64 pixel region of the drawable.
|
|
The reason Gimp breaks the image into small pieces like this is
|
|
so that the whole image doesn't have to be loaded into memory in
|
|
order to alter one part of it. This becomes important with
|
|
larger images.</P
|
|
><P
|
|
>In Gimp-Python, you would use Tiles if you wanted to
|
|
perform some low level operation on the image, instead of using
|
|
procedures in the PDB. This type of object gives a Gimp-Python
|
|
plugin the power of a C plugin, rather than just the power of a
|
|
Script-Fu script. Tile objects are created with either the
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_tile</B
|
|
></TT
|
|
>()
|
|
or
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>get_tile2</B
|
|
></TT
|
|
>()
|
|
functions. In this section, I will refer to a generic tile
|
|
object named <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.</P
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="TILE-OBJECT-MEMBERS"
|
|
>Tile Members</A
|
|
></H3
|
|
><P
|
|
>All tile members are read only.</P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>bpp</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The number of bytes per pixel.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>dirty</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>If there have been changes to the tile since it
|
|
was last flushed.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The drawable that the tile is from.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>eheight</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The actual height of the tile.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>ewidth</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The actual width of the tile.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>ref_count</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The reference count of the tile. (this is
|
|
independent of the Python object reference
|
|
count).</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the tile is part of the shadow
|
|
buffer.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="TILE-OBJECT-METHODS"
|
|
>Tile Methods</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>flush</B
|
|
></TT
|
|
>()</DT
|
|
><DD
|
|
><P
|
|
>Flush any changes in the tile. Note that the tile
|
|
is automatically flushed when the Python object is
|
|
deleted from memory.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="TILE-OBJECT-MAPPING"
|
|
>Tile Mapping Behaviour</A
|
|
></H3
|
|
><P
|
|
>Tile objects also act as a mapping, or sequence. You
|
|
can access the pixels in the tile in one of two ways. You can
|
|
either access them with a single number, which refers to its
|
|
position in the tile
|
|
(eg. <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
><TT
|
|
CLASS="LITERAL"
|
|
>[64]</TT
|
|
>
|
|
refers to the first pixel in the second row of a 64x64 pixel
|
|
tile). The other way is with a tuple, representing the
|
|
coordinates on the tile
|
|
(eg. <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
><TT
|
|
CLASS="LITERAL"
|
|
>[0, 1]</TT
|
|
>
|
|
refers to the first pixel on the second row of the
|
|
tile).</P
|
|
><P
|
|
>The type of these subscripts is a string of length
|
|
<TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>tile</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>bpp</I
|
|
></TT
|
|
>.
|
|
When you assign to a subscript, the dirty flag is
|
|
automatically set on the tile, so you don't have to explicitly
|
|
set the flag, or flush the tile.</P
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT2"
|
|
><H2
|
|
CLASS="SECT2"
|
|
><A
|
|
NAME="PREGION-OBJECT"
|
|
>Pixel Regions</A
|
|
></H2
|
|
><P
|
|
>Pixel region objects give an interface for low level
|
|
operations to act on large regions of an image, instead of on
|
|
small 64x64 pixel tiles. In this section I will refer to a
|
|
generic pixel region called <TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>. For
|
|
an example of a pixel region's use, please see the example
|
|
plugin <TT
|
|
CLASS="FILENAME"
|
|
>whirlpinch.py</TT
|
|
>.</P
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="PREGION-OBJECT-MEMBERS"
|
|
>Pixel Region Members</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>drawable</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The drawable this pixel region is for.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>bpp</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The number of bytes per pixel for the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>rowstride</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The rowstride for the pixel region.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The x coordinate of the top left hand corner.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The y coordinate of the top left hand corner.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The width of the pixel region.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>The height of the pixel region.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>dirty</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if changes to the pixel region will be
|
|
reflected in the drawable.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>shadow</I
|
|
></TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>Non zero if the pixel region acts on the shadow
|
|
tiles of the drawable.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="PREGION-OBJECT-METHODS"
|
|
>Pixel Region Methods</A
|
|
></H3
|
|
><P
|
|
></P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>.<TT
|
|
CLASS="FUNCTION"
|
|
><B
|
|
>resize</B
|
|
></TT
|
|
>(<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>, <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>h</I
|
|
></TT
|
|
>)</DT
|
|
><DD
|
|
><P
|
|
>resize the pixel region so that it operates on the
|
|
the region with corner <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x, y)</I
|
|
></TT
|
|
>
|
|
with dimensions <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>w x h</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
><DIV
|
|
CLASS="SECT3"
|
|
><H3
|
|
CLASS="SECT3"
|
|
><A
|
|
NAME="PREGION-OBJECT-MAPPING"
|
|
>Pixel Region Mapping Behaviour</A
|
|
></H3
|
|
><P
|
|
>The pixel region acts as a mapping. The index is a
|
|
2-tuple with components that are either integers or slices.
|
|
The subscripts may be read and assigned to. The type of the
|
|
subscripts is a string containing the binary data of the
|
|
requested region. Here is a description of the posible
|
|
operations:</P
|
|
><P
|
|
></P
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>[<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>]</DT
|
|
><DD
|
|
><P
|
|
>Get/Set the pixel at
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,y)</I
|
|
></TT
|
|
></P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>[<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x1</I
|
|
></TT
|
|
>:<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x2</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y</I
|
|
></TT
|
|
>]</DT
|
|
><DD
|
|
><P
|
|
>Get/Set the row starting at <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x1,
|
|
y)</I
|
|
></TT
|
|
>, width <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x2 -
|
|
x1</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>[<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y1</I
|
|
></TT
|
|
>:<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y2</I
|
|
></TT
|
|
>]</DT
|
|
><DD
|
|
><P
|
|
>Get/Set the column starting at <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x,
|
|
y1)</I
|
|
></TT
|
|
>, height <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y2 -
|
|
y1</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="REPLACEABLE"
|
|
><I
|
|
>pr</I
|
|
></TT
|
|
>[<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x1</I
|
|
></TT
|
|
>:<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x2</I
|
|
></TT
|
|
>,
|
|
<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y1</I
|
|
></TT
|
|
>:<TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y1</I
|
|
></TT
|
|
>]</DT
|
|
><DD
|
|
><P
|
|
>Get/Set the rectangle starting at <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>(x1,
|
|
y1)</I
|
|
></TT
|
|
>, width <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>x2 - x1</I
|
|
></TT
|
|
>
|
|
and height <TT
|
|
CLASS="PARAMETER"
|
|
><I
|
|
>y2 - y1</I
|
|
></TT
|
|
>.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></DIV
|
|
></DIV
|
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><DIV
|
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><TR
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><TD
|
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WIDTH="33%"
|
|
ALIGN="left"
|
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VALIGN="top"
|
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><A
|
|
HREF="gimp-module-procedures.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
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WIDTH="34%"
|
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ALIGN="center"
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|
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><A
|
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HREF="pygimp.html"
|
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>Home</A
|
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HREF="support-modules.html"
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>Gimp Module Procedures</TD
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><TD
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> </TD
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