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cookbook: Fix opacity examples in recipe

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The recipe had examples where opacity was set using
fractional numbers. Fixed all examples to use
integers only.
This commit is contained in:
Elliot Smith 2010-11-12 09:54:12 +00:00
parent f135f2e7d5
commit 63721c5db1
1 changed files with 13 additions and 13 deletions
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26
doc/cookbook/actors.xml
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@ -276,10 +276,10 @@ on_paint (ClutterActor *actor)
<informalexample> <informalexample>
<programlisting> <programlisting>
/* 25% transparency */ /* 25% transparency */
clutter_actor_set_opacity (actor, 191.25); clutter_actor_set_opacity (actor, 191);
/* 50% transparency */ /* 50% transparency */
clutter_actor_set_opacity (actor, 122.5); clutter_actor_set_opacity (actor, 122);
/* completely transparent */ /* completely transparent */
clutter_actor_set_opacity (actor, 0); clutter_actor_set_opacity (actor, 0);
@ -325,13 +325,13 @@ clutter_actor_set_opacity (actor, 0);
<para>top-left: <code>255</code> (0% transparency)</para> <para>top-left: <code>255</code> (0% transparency)</para>
</listitem> </listitem>
<listitem> <listitem>
<para>top-right: <code>191.25</code> (25% transparency)</para> <para>top-right: <code>191</code> (25% transparency)</para>
</listitem> </listitem>
<listitem> <listitem>
<para>bottom-right: <code>122.5</code> (50% transparency)</para> <para>bottom-right: <code>122</code> (50% transparency)</para>
</listitem> </listitem>
<listitem> <listitem>
<para>bottom-left: <code>61.25</code> (75% transparency)</para> <para>bottom-left: <code>61</code> (75% transparency)</para>
</listitem> </listitem>
</itemizedlist> </itemizedlist>
@ -350,10 +350,10 @@ clutter_actor_set_opacity (actor, 0);
<para>If a container has its opacity set, any children of the <para>If a container has its opacity set, any children of the
container have their opacity combined with their parent's opacity. container have their opacity combined with their parent's opacity.
For example, if a parent has an opacity of <code>122.5</code> For example, if a parent has an opacity of <code>122</code>
(50% transparent) and the child also has an opacity of (50% transparent) and the child also has an opacity of
<code>122.5</code>, the child's <emphasis>effective</emphasis> <code>122</code>, the child's <emphasis>effective</emphasis>
opacity is 25% (<code>opacity = 61.25</code>, and it is opacity is 25% (<code>opacity = 61</code>, and it is
75% transparent).</para> 75% transparent).</para>
<para>To demonstrate the visual effect of this, here are <para>To demonstrate the visual effect of this, here are
@ -382,14 +382,14 @@ clutter_actor_set_opacity (actor, 0);
<listitem> <listitem>
<para>The middle rectangle has <code>opacity = 255</code> <para>The middle rectangle has <code>opacity = 255</code>
and is in a <type>ClutterGroup</type> with and is in a <type>ClutterGroup</type> with
<code>opacity = 122.5</code>. Notice that the parent opacity <code>opacity = 122</code>. Notice that the parent opacity
makes the rectangle appear darker, as the stage colour is showing makes the rectangle appear darker, as the stage colour is showing
through from behind.</para> through from behind.</para>
</listitem> </listitem>
<listitem> <listitem>
<para>The right-hand rectangle has <code>opacity = 122.5</code> <para>The right-hand rectangle has <code>opacity = 122</code>
and is in a <type>ClutterGroup</type> with and is in a <type>ClutterGroup</type> with
<code>opacity = 122.5</code>. Notice that the rectangle appears <code>opacity = 122</code>. Notice that the rectangle appears
to be even darker, as the stage colour is showing to be even darker, as the stage colour is showing
through both the rectangle and its parent.</para> through both the rectangle and its parent.</para>
</listitem> </listitem>
@ -405,12 +405,12 @@ clutter_actor_set_opacity (actor, 0);
<programlisting> <programlisting>
<![CDATA[ <![CDATA[
/* color with 50% transparency */ /* color with 50% transparency */
ClutterColor half_transparent_color = { 255, 0, 0, 122.5 }; ClutterColor half_transparent_color = { 255, 0, 0, 122 };
ClutterRectangle *actor = clutter_rectangle_new (); ClutterRectangle *actor = clutter_rectangle_new ();
/* set actor's transparency to 50% */ /* set actor's transparency to 50% */
clutter_actor_set_opacity (actor, 122.5); clutter_actor_set_opacity (actor, 122);
/* rectangle will be 25% opaque/75% transparent */ /* rectangle will be 25% opaque/75% transparent */
clutter_rectangle_set_color (CLUTTER_RECTANGLE (actor), clutter_rectangle_set_color (CLUTTER_RECTANGLE (actor),