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gimp/devel-docs/libgimp/xml/gimptexttool.xml
2010-08-11 01:23:21 -04:00

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<refentry id="libgimp-gimptexttool">
<refmeta>
<refentrytitle role="top_of_page">gimptexttool</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>LIBGIMP Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>gimptexttool</refname>
<refpurpose>Functions for controlling the text tool.</refpurpose>
<!--[<xref linkend="desc" endterm="desc.title"/>]-->
</refnamediv>
<refsynopsisdiv role="synopsis">
<title role="synopsis.title">Synopsis</title>
<synopsis>
<link linkend="gint32">gint32</link> <link linkend="gimp-text-fontname">gimp_text_fontname</link> (<link linkend="gint32">gint32</link> image_ID,
<link linkend="gint32">gint32</link> drawable_ID,
<link linkend="gdouble">gdouble</link> x,
<link linkend="gdouble">gdouble</link> y,
const <link linkend="gchar">gchar</link> *text,
<link linkend="gint">gint</link> border,
<link linkend="gboolean">gboolean</link> antialias,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *fontname);
<link linkend="gboolean">gboolean</link> <link linkend="gimp-text-get-extents-fontname">gimp_text_get_extents_fontname</link> (const <link linkend="gchar">gchar</link> *text,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *fontname,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height,
<link linkend="gint">gint</link> *ascent,
<link linkend="gint">gint</link> *descent);
<link linkend="gint32">gint32</link> <link linkend="gimp-text">gimp_text</link> (<link linkend="gint32">gint32</link> image_ID,
<link linkend="gint32">gint32</link> drawable_ID,
<link linkend="gdouble">gdouble</link> x,
<link linkend="gdouble">gdouble</link> y,
const <link linkend="gchar">gchar</link> *text,
<link linkend="gint">gint</link> border,
<link linkend="gboolean">gboolean</link> antialias,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *foundry,
const <link linkend="gchar">gchar</link> *family,
const <link linkend="gchar">gchar</link> *weight,
const <link linkend="gchar">gchar</link> *slant,
const <link linkend="gchar">gchar</link> *set_width,
const <link linkend="gchar">gchar</link> *spacing,
const <link linkend="gchar">gchar</link> *registry,
const <link linkend="gchar">gchar</link> *encoding);
<link linkend="gboolean">gboolean</link> <link linkend="gimp-text-get-extents">gimp_text_get_extents</link> (const <link linkend="gchar">gchar</link> *text,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *foundry,
const <link linkend="gchar">gchar</link> *family,
const <link linkend="gchar">gchar</link> *weight,
const <link linkend="gchar">gchar</link> *slant,
const <link linkend="gchar">gchar</link> *set_width,
const <link linkend="gchar">gchar</link> *spacing,
const <link linkend="gchar">gchar</link> *registry,
const <link linkend="gchar">gchar</link> *encoding,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height,
<link linkend="gint">gint</link> *ascent,
<link linkend="gint">gint</link> *descent);
</synopsis>
</refsynopsisdiv>
<refsect1 role="desc">
<title role="desc.title">Description</title>
<para>
Functions for controlling the text tool.
</para>
</refsect1>
<refsect1 role="details">
<title role="details.title">Details</title>
<refsect2>
<title><anchor id="gimp-text-fontname" role="function"/>gimp_text_fontname ()</title>
<indexterm><primary>gimp_text_fontname</primary></indexterm><programlisting><link linkend="gint32">gint32</link> gimp_text_fontname (<link linkend="gint32">gint32</link> image_ID,
<link linkend="gint32">gint32</link> drawable_ID,
<link linkend="gdouble">gdouble</link> x,
<link linkend="gdouble">gdouble</link> y,
const <link linkend="gchar">gchar</link> *text,
<link linkend="gint">gint</link> border,
<link linkend="gboolean">gboolean</link> antialias,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *fontname);</programlisting>
<para>
Add text at the specified location as a floating selection or a new
layer.
</para>
<para>
This tool requires a fontname matching an installed PangoFT2 font.
You can specify the fontsize in units of pixels or points, and the
appropriate metric is specified using the size_type argument. The x
and y parameters together control the placement of the new text by
specifying the upper left corner of the text bounding box. If the
specified drawable parameter is valid, the text will be created as a
floating selection attached to the drawable. If the drawable
parameter is not valid (-1), the text will appear as a new layer.
Finally, a border can be specified around the final rendered text.
The border is measured in pixels. Parameter size-type is not used
and is currently ignored. If you need to display a font in points,
divide the size in points by 72.0 and multiply it by the image's
vertical resolution.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>image_ID</parameter>&nbsp;:</term>
<listitem><simpara> The image.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>drawable_ID</parameter>&nbsp;:</term>
<listitem><simpara> The affected drawable: (-1 for a new text layer).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>x</parameter>&nbsp;:</term>
<listitem><simpara> The x coordinate for the left of the text bounding box.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>y</parameter>&nbsp;:</term>
<listitem><simpara> The y coordinate for the top of the text bounding box.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>text</parameter>&nbsp;:</term>
<listitem><simpara> The text to generate (in UTF-8 encoding).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>border</parameter>&nbsp;:</term>
<listitem><simpara> The size of the border.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>antialias</parameter>&nbsp;:</term>
<listitem><simpara> Antialiasing.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter>&nbsp;:</term>
<listitem><simpara> The size of text in either pixels or points.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size_type</parameter>&nbsp;:</term>
<listitem><simpara> The units of specified size.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>fontname</parameter>&nbsp;:</term>
<listitem><simpara> The name of the font.
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> The new text layer or -1 if no layer was created.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="gimp-text-get-extents-fontname" role="function"/>gimp_text_get_extents_fontname ()</title>
<indexterm><primary>gimp_text_get_extents_fontname</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> gimp_text_get_extents_fontname (const <link linkend="gchar">gchar</link> *text,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *fontname,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height,
<link linkend="gint">gint</link> *ascent,
<link linkend="gint">gint</link> *descent);</programlisting>
<para>
Get extents of the bounding box for the specified text.
</para>
<para>
This tool returns the width and height of a bounding box for the
specified text string with the specified font information. Ascent
and descent for the specified font are returned as well. Parameter
size-type is not used and is currently ignored. If you need to
display a font in points, divide the size in points by 72.0 and
multiply it by the vertical resolution of the image you are taking
into account.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>text</parameter>&nbsp;:</term>
<listitem><simpara> The text to generate (in UTF-8 encoding).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter>&nbsp;:</term>
<listitem><simpara> The size of text in either pixels or points.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size_type</parameter>&nbsp;:</term>
<listitem><simpara> The units of specified size.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>fontname</parameter>&nbsp;:</term>
<listitem><simpara> The name of the font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>width</parameter>&nbsp;:</term>
<listitem><simpara> The width of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>height</parameter>&nbsp;:</term>
<listitem><simpara> The height of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>ascent</parameter>&nbsp;:</term>
<listitem><simpara> The ascent of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>descent</parameter>&nbsp;:</term>
<listitem><simpara> The descent of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> TRUE on success.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="gimp-text" role="function" condition="deprecated:"/>gimp_text ()</title>
<indexterm role="deprecated"><primary>gimp_text</primary></indexterm><programlisting><link linkend="gint32">gint32</link> gimp_text (<link linkend="gint32">gint32</link> image_ID,
<link linkend="gint32">gint32</link> drawable_ID,
<link linkend="gdouble">gdouble</link> x,
<link linkend="gdouble">gdouble</link> y,
const <link linkend="gchar">gchar</link> *text,
<link linkend="gint">gint</link> border,
<link linkend="gboolean">gboolean</link> antialias,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *foundry,
const <link linkend="gchar">gchar</link> *family,
const <link linkend="gchar">gchar</link> *weight,
const <link linkend="gchar">gchar</link> *slant,
const <link linkend="gchar">gchar</link> *set_width,
const <link linkend="gchar">gchar</link> *spacing,
const <link linkend="gchar">gchar</link> *registry,
const <link linkend="gchar">gchar</link> *encoding);</programlisting>
<warning><para><literal>gimp_text</literal> is deprecated and should not be used in newly-written code.</para></warning>
<para>
This procedure is deprecated! Use <link linkend="gimp-text-fontname"><function>gimp_text_fontname()</function></link> instead.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>image_ID</parameter>&nbsp;:</term>
<listitem><simpara> The image.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>drawable_ID</parameter>&nbsp;:</term>
<listitem><simpara> The affected drawable: (-1 for a new text layer).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>x</parameter>&nbsp;:</term>
<listitem><simpara> The x coordinate for the left of the text bounding box.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>y</parameter>&nbsp;:</term>
<listitem><simpara> The y coordinate for the top of the text bounding box.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>text</parameter>&nbsp;:</term>
<listitem><simpara> The text to generate (in UTF-8 encoding).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>border</parameter>&nbsp;:</term>
<listitem><simpara> The size of the border.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>antialias</parameter>&nbsp;:</term>
<listitem><simpara> Antialiasing.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter>&nbsp;:</term>
<listitem><simpara> The size of text in either pixels or points.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size_type</parameter>&nbsp;:</term>
<listitem><simpara> The units of specified size.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>foundry</parameter>&nbsp;:</term>
<listitem><simpara> The font foundry.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>family</parameter>&nbsp;:</term>
<listitem><simpara> The font family.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>weight</parameter>&nbsp;:</term>
<listitem><simpara> The font weight.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>slant</parameter>&nbsp;:</term>
<listitem><simpara> The font slant.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>set_width</parameter>&nbsp;:</term>
<listitem><simpara> The font set-width.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>spacing</parameter>&nbsp;:</term>
<listitem><simpara> The font spacing.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>registry</parameter>&nbsp;:</term>
<listitem><simpara> The font registry.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>encoding</parameter>&nbsp;:</term>
<listitem><simpara> The font encoding.
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> The new text layer or -1 if no layer was created.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="gimp-text-get-extents" role="function" condition="deprecated:"/>gimp_text_get_extents ()</title>
<indexterm role="deprecated"><primary>gimp_text_get_extents</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> gimp_text_get_extents (const <link linkend="gchar">gchar</link> *text,
<link linkend="gdouble">gdouble</link> size,
<link linkend="GimpSizeType">GimpSizeType</link> size_type,
const <link linkend="gchar">gchar</link> *foundry,
const <link linkend="gchar">gchar</link> *family,
const <link linkend="gchar">gchar</link> *weight,
const <link linkend="gchar">gchar</link> *slant,
const <link linkend="gchar">gchar</link> *set_width,
const <link linkend="gchar">gchar</link> *spacing,
const <link linkend="gchar">gchar</link> *registry,
const <link linkend="gchar">gchar</link> *encoding,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height,
<link linkend="gint">gint</link> *ascent,
<link linkend="gint">gint</link> *descent);</programlisting>
<warning><para><literal>gimp_text_get_extents</literal> is deprecated and should not be used in newly-written code.</para></warning>
<para>
This procedure is deprecated! Use <link linkend="gimp-text-get-extents-fontname"><function>gimp_text_get_extents_fontname()</function></link>
instead.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>text</parameter>&nbsp;:</term>
<listitem><simpara> The text to generate (in UTF-8 encoding).
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter>&nbsp;:</term>
<listitem><simpara> The size of text in either pixels or points.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size_type</parameter>&nbsp;:</term>
<listitem><simpara> The units of specified size.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>foundry</parameter>&nbsp;:</term>
<listitem><simpara> The font foundry.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>family</parameter>&nbsp;:</term>
<listitem><simpara> The font family.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>weight</parameter>&nbsp;:</term>
<listitem><simpara> The font weight.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>slant</parameter>&nbsp;:</term>
<listitem><simpara> The font slant.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>set_width</parameter>&nbsp;:</term>
<listitem><simpara> The font set-width.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>spacing</parameter>&nbsp;:</term>
<listitem><simpara> The font spacing.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>registry</parameter>&nbsp;:</term>
<listitem><simpara> The font registry.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>encoding</parameter>&nbsp;:</term>
<listitem><simpara> The font encoding.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>width</parameter>&nbsp;:</term>
<listitem><simpara> The width of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>height</parameter>&nbsp;:</term>
<listitem><simpara> The height of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>ascent</parameter>&nbsp;:</term>
<listitem><simpara> The ascent of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>descent</parameter>&nbsp;:</term>
<listitem><simpara> The descent of the specified font.
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> TRUE on success.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
<refsect1><refsect2 /><refsect2 /></refsect1>
</refentry>