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gimp/devel-docs/libgimpwidgets/xml/gimpzoommodel.xml
2010-08-11 01:24:52 -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="GimpZoomModel">
<refmeta>
<refentrytitle role="top_of_page" id="GimpZoomModel.top_of_page">GimpZoomModel</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>LIBGIMPWIDGETS Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>GimpZoomModel</refname>
<refpurpose></refpurpose>
<!--[<xref linkend="desc" endterm="desc.title"/>]-->
</refnamediv>
<refsynopsisdiv id="GimpZoomModel.synopsis" role="synopsis">
<title role="synopsis.title">Synopsis</title>
<synopsis>
<link linkend="GimpZoomModel-struct">GimpZoomModel</link>;
enum <link linkend="GimpZoomType">GimpZoomType</link>;
<link linkend="GimpZoomModel">GimpZoomModel</link>* <link linkend="gimp-zoom-model-new">gimp_zoom_model_new</link> (void);
<link linkend="void">void</link> <link linkend="gimp-zoom-model-set-range">gimp_zoom_model_set_range</link> (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="gdouble">gdouble</link> min,
<link linkend="gdouble">gdouble</link> max);
<link linkend="void">void</link> <link linkend="gimp-zoom-model-zoom">gimp_zoom_model_zoom</link> (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="gdouble">gdouble</link> scale);
<link linkend="gdouble">gdouble</link> <link linkend="gimp-zoom-model-get-factor">gimp_zoom_model_get_factor</link> (<link linkend="GimpZoomModel">GimpZoomModel</link> *model);
<link linkend="void">void</link> <link linkend="gimp-zoom-model-get-fraction">gimp_zoom_model_get_fraction</link> (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="gint">gint</link> *numerator,
<link linkend="gint">gint</link> *denominator);
<link linkend="GtkWidget">GtkWidget</link>* <link linkend="gimp-zoom-button-new">gimp_zoom_button_new</link> (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="GtkIconSize">GtkIconSize</link> icon_size);
<link linkend="gdouble">gdouble</link> <link linkend="gimp-zoom-model-zoom-step">gimp_zoom_model_zoom_step</link> (<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="gdouble">gdouble</link> scale);
</synopsis>
</refsynopsisdiv>
<refsect1 id="GimpZoomModel.object-hierarchy" role="object_hierarchy">
<title role="object_hierarchy.title">Object Hierarchy</title>
<synopsis>
<link linkend="GObject">GObject</link>
+----GimpZoomModel
</synopsis>
</refsect1>
<refsect1 id="GimpZoomModel.properties" role="properties">
<title role="properties.title">Properties</title>
<synopsis>
&quot;<link linkend="GimpZoomModel--fraction">fraction</link>&quot; <link linkend="gchar">gchar</link>* : Read
&quot;<link linkend="GimpZoomModel--maximum">maximum</link>&quot; <link linkend="gdouble">gdouble</link> : Read / Write
&quot;<link linkend="GimpZoomModel--minimum">minimum</link>&quot; <link linkend="gdouble">gdouble</link> : Read / Write
&quot;<link linkend="GimpZoomModel--percentage">percentage</link>&quot; <link linkend="gchar">gchar</link>* : Read
&quot;<link linkend="GimpZoomModel--value">value</link>&quot; <link linkend="gdouble">gdouble</link> : Read / Write
</synopsis>
</refsect1>
<refsect1 id="GimpZoomModel.signals" role="signal_proto">
<title role="signal_proto.title">Signals</title>
<synopsis>
&quot;<link linkend="GimpZoomModel-zoomed">zoomed</link>&quot; : Run Last
</synopsis>
</refsect1>
<refsect1 id="GimpZoomModel.description" role="desc">
<title role="desc.title">Description</title>
<para>
</para>
</refsect1>
<refsect1 id="GimpZoomModel.details" role="details">
<title role="details.title">Details</title>
<refsect2 id="GimpZoomModel-struct" role="struct">
<title>GimpZoomModel</title>
<indexterm zone="GimpZoomModel-struct"><primary>GimpZoomModel</primary></indexterm><programlisting>typedef struct _GimpZoomModel GimpZoomModel;</programlisting>
<para>
</para></refsect2>
<refsect2 id="GimpZoomType" role="enum">
<title>enum GimpZoomType</title>
<indexterm zone="GimpZoomType"><primary>GimpZoomType</primary></indexterm><programlisting>typedef enum
{
GIMP_ZOOM_IN, /*&lt; desc="Zoom in" &gt;*/
GIMP_ZOOM_OUT, /*&lt; desc="Zoom out" &gt;*/
GIMP_ZOOM_IN_MORE, /*&lt; skip &gt;*/
GIMP_ZOOM_OUT_MORE, /*&lt; skip &gt;*/
GIMP_ZOOM_IN_MAX, /*&lt; skip &gt;*/
GIMP_ZOOM_OUT_MAX, /*&lt; skip &gt;*/
GIMP_ZOOM_TO /*&lt; skip &gt;*/
} GimpZoomType;
</programlisting>
<para>
</para></refsect2>
<refsect2 id="gimp-zoom-model-new" role="function">
<title>gimp_zoom_model_new ()</title>
<indexterm zone="gimp-zoom-model-new"><primary>gimp_zoom_model_new</primary></indexterm><programlisting><link linkend="GimpZoomModel">GimpZoomModel</link>* gimp_zoom_model_new (void);</programlisting>
<para>
Creates a new <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> a new <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>.
Since GIMP 2.4
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-model-set-range" role="function">
<title>gimp_zoom_model_set_range ()</title>
<indexterm zone="gimp-zoom-model-set-range"><primary>gimp_zoom_model_set_range</primary></indexterm><programlisting><link linkend="void">void</link> gimp_zoom_model_set_range (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="gdouble">gdouble</link> min,
<link linkend="gdouble">gdouble</link> max);</programlisting>
<para>
Sets the allowed range of the <parameter>model</parameter>.
</para>
<para>
Since GIMP 2.4</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>min</parameter>&nbsp;:</term>
<listitem><simpara> new lower limit for zoom factor
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>max</parameter>&nbsp;:</term>
<listitem><simpara> new upper limit for zoom factor
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-model-zoom" role="function">
<title>gimp_zoom_model_zoom ()</title>
<indexterm zone="gimp-zoom-model-zoom"><primary>gimp_zoom_model_zoom</primary></indexterm><programlisting><link linkend="void">void</link> gimp_zoom_model_zoom (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="gdouble">gdouble</link> scale);</programlisting>
<para>
Since GIMP 2.4</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>zoom_type</parameter>&nbsp;:</term>
<listitem><simpara> the <link linkend="GimpZoomType"><type>GimpZoomType</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>scale</parameter>&nbsp;:</term>
<listitem><simpara> ignored unless <parameter>zoom_type</parameter> == <link linkend="GIMP-ZOOM-TO:CAPS"><literal>GIMP_ZOOM_TO</literal></link>
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-model-get-factor" role="function">
<title>gimp_zoom_model_get_factor ()</title>
<indexterm zone="gimp-zoom-model-get-factor"><primary>gimp_zoom_model_get_factor</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link> gimp_zoom_model_get_factor (<link linkend="GimpZoomModel">GimpZoomModel</link> *model);</programlisting>
<para>
Retrieves the current zoom factor of <parameter>model</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> the current scale factor
Since GIMP 2.4
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-model-get-fraction" role="function">
<title>gimp_zoom_model_get_fraction ()</title>
<indexterm zone="gimp-zoom-model-get-fraction"><primary>gimp_zoom_model_get_fraction</primary></indexterm><programlisting><link linkend="void">void</link> gimp_zoom_model_get_fraction (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="gint">gint</link> *numerator,
<link linkend="gint">gint</link> *denominator);</programlisting>
<para>
Retrieves the current zoom factor of <parameter>model</parameter> as a fraction.
</para>
<para>
Since GIMP 2.4</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>numerator</parameter>&nbsp;:</term>
<listitem><simpara> return location for numerator
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>denominator</parameter>&nbsp;:</term>
<listitem><simpara> return location for denominator
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-button-new" role="function">
<title>gimp_zoom_button_new ()</title>
<indexterm zone="gimp-zoom-button-new"><primary>gimp_zoom_button_new</primary></indexterm><programlisting><link linkend="GtkWidget">GtkWidget</link>* gimp_zoom_button_new (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="GtkIconSize">GtkIconSize</link> icon_size);</programlisting>
<para>
</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="GimpZoomModel"><type>GimpZoomModel</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>zoom_type</parameter>&nbsp;:</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>icon_size</parameter>&nbsp;:</term>
<listitem><simpara> use 0 for a button with text labels
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> a newly created GtkButton
Since GIMP 2.4
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2 id="gimp-zoom-model-zoom-step" role="function">
<title>gimp_zoom_model_zoom_step ()</title>
<indexterm zone="gimp-zoom-model-zoom-step"><primary>gimp_zoom_model_zoom_step</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link> gimp_zoom_model_zoom_step (<link linkend="GimpZoomType">GimpZoomType</link> zoom_type,
<link linkend="gdouble">gdouble</link> scale);</programlisting>
<para>
Utility function to calculate a new scale factor.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>zoom_type</parameter>&nbsp;:</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>scale</parameter>&nbsp;:</term>
<listitem><simpara> ignored unless <parameter>zoom_type</parameter> == <link linkend="GIMP-ZOOM-TO:CAPS"><literal>GIMP_ZOOM_TO</literal></link>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> the new scale factor
Since GIMP 2.4
</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
<refsect1 id="GimpZoomModel.property-details" role="property_details">
<title role="property_details.title">Property Details</title>
<refsect2 id="GimpZoomModel--fraction"><title>The <literal>&quot;fraction&quot;</literal> property</title>
<indexterm zone="GimpZoomModel--fraction"><primary>GimpZoomModel:fraction</primary></indexterm><programlisting> &quot;fraction&quot; <link linkend="gchar">gchar</link>* : Read</programlisting>
<para></para><para>Default value: "1:1"</para>
</refsect2>
<refsect2 id="GimpZoomModel--maximum"><title>The <literal>&quot;maximum&quot;</literal> property</title>
<indexterm zone="GimpZoomModel--maximum"><primary>GimpZoomModel:maximum</primary></indexterm><programlisting> &quot;maximum&quot; <link linkend="gdouble">gdouble</link> : Read / Write</programlisting>
<para></para><para>Allowed values: [0.00390625,256]</para>
<para>Default value: 256</para>
</refsect2>
<refsect2 id="GimpZoomModel--minimum"><title>The <literal>&quot;minimum&quot;</literal> property</title>
<indexterm zone="GimpZoomModel--minimum"><primary>GimpZoomModel:minimum</primary></indexterm><programlisting> &quot;minimum&quot; <link linkend="gdouble">gdouble</link> : Read / Write</programlisting>
<para></para><para>Allowed values: [0.00390625,256]</para>
<para>Default value: 0.00390625</para>
</refsect2>
<refsect2 id="GimpZoomModel--percentage"><title>The <literal>&quot;percentage&quot;</literal> property</title>
<indexterm zone="GimpZoomModel--percentage"><primary>GimpZoomModel:percentage</primary></indexterm><programlisting> &quot;percentage&quot; <link linkend="gchar">gchar</link>* : Read</programlisting>
<para></para><para>Default value: "100%"</para>
</refsect2>
<refsect2 id="GimpZoomModel--value"><title>The <literal>&quot;value&quot;</literal> property</title>
<indexterm zone="GimpZoomModel--value"><primary>GimpZoomModel:value</primary></indexterm><programlisting> &quot;value&quot; <link linkend="gdouble">gdouble</link> : Read / Write</programlisting>
<para></para><para>Allowed values: [0.00390625,256]</para>
<para>Default value: 1</para>
</refsect2>
</refsect1>
<refsect1 id="GimpZoomModel.signal-details" role="signals">
<title role="signals.title">Signal Details</title>
<refsect2 id="GimpZoomModel-zoomed"><title>The <literal>&quot;zoomed&quot;</literal> signal</title>
<indexterm zone="GimpZoomModel-zoomed"><primary>GimpZoomModel::zoomed</primary></indexterm><programlisting><link linkend="void">void</link> user_function (<link linkend="GimpZoomModel">GimpZoomModel</link> *model,
<link linkend="gdouble">gdouble</link> old_factor,
<link linkend="gdouble">gdouble</link> new_factor,
<link linkend="gpointer">gpointer</link> user_data) : Run Last</programlisting>
<para>
Emitted when the zoom factor of the zoom model changes.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>model</parameter>&nbsp;:</term>
<listitem><simpara> the object that received the signal
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>old_factor</parameter>&nbsp;:</term>
<listitem><simpara> the zoom factor before it changes
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>new_factor</parameter>&nbsp;:</term>
<listitem><simpara> the zoom factor after it has changed.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>user_data</parameter>&nbsp;:</term>
<listitem><simpara>user data set when the signal handler was connected.</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
</refentry>