diff options
Diffstat (limited to 'docs/reference/gtk/tmpl/gtkrc.sgml')
| -rw-r--r-- | docs/reference/gtk/tmpl/gtkrc.sgml | 63 |
1 files changed, 61 insertions, 2 deletions
diff --git a/docs/reference/gtk/tmpl/gtkrc.sgml b/docs/reference/gtk/tmpl/gtkrc.sgml index 1282268b6c..0751551aa6 100644 --- a/docs/reference/gtk/tmpl/gtkrc.sgml +++ b/docs/reference/gtk/tmpl/gtkrc.sgml @@ -441,6 +441,15 @@ elements are: </listitem> </varlistentry> <varlistentry> + <term><literal>color[<replaceable>"color-name"</replaceable>] = <replaceable>color specification</replaceable></literal></term> + <listitem> + <para> + Since 2.10, this element can be used to defines symbolic colors. See below for + the syntax of color specifications. + </para> + </listitem> + </varlistentry> + <varlistentry> <term><literal>engine <replaceable>"engine"</replaceable> { <replaceable>engine-specific settings</replaceable> }</literal></term> <listitem> @@ -520,8 +529,7 @@ state of the widget. The states are: <para><anchor id="color-format"/> Colors can be specified as a string containing a color name (GTK+ knows -all names from the X color database -<filename>/usr/lib/X11/rgb.txt</filename>), +all names from the X color database <filename>/usr/lib/X11/rgb.txt</filename>), in one of the hexadecimal forms <literal>#rrrrggggbbbb</literal>, <literal>#rrrgggbbb</literal>, <literal>#rrggbb</literal>, or <literal>#rgb</literal>, where <literal>r</literal>, @@ -532,6 +540,56 @@ hex digits, or they can be specified as a triplet <literal>g</literal> and <literal>b</literal> are either integers in the range 0-65535 or floats in the range 0.0-1.0. </para> +<para> +Since 2.10, colors can also be specified by refering to a symbolic color, as +follows: <literal>@<!-- -->color-name</literal>, or by using expressions to combine +colors. The following expressions are currently supported: + <variablelist> + <varlistentry> + <term>mix (<replaceable>factor</replaceable>, <replaceable>color1</replaceable>, <replaceable>color2</replaceable>)</term> + <listitem><para> + Computes a new color by mixing <replaceable>color1</replaceable> and + <replaceable>color2</replaceable>. The <replaceable>factor</replaceable> + determines how close the new color is to <replaceable>color1</replaceable>. + A factor of 1.0 gives pure <replaceable>color1</replaceable>, a factor of + 0.0 gives pure <replaceable>color2</replaceable>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term>shade (<replaceable>factor</replaceable>, <replaceable>color</replaceable>)</term> + <listitem><para> + Computes a lighter or darker variant of <replaceable>color</replaceable>. + A <replaceable>factor</replaceable> of 1.0 leaves the color unchanged, smaller + factors yield darker colors, larger factors yield lighter colors. + </para></listitem> + </varlistentry> + + <varlistentry> + <term>lighter (<replaceable>color</replaceable>)</term> + <listitem><para> + This is an abbreviation for + <literal>shade (1.3, <replaceable>color</replaceable>)</literal>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term>darker (<replaceable>color</replaceable>)</term> + <listitem><para> + This is an abbreviation for + <literal>shade (0.7, <replaceable>color</replaceable>)</literal>. + </para></listitem> + </varlistentry> + </variablelist> +</para> +<para> +Here are some examples of color expressions: +<informalexample><programlisting> + mix (0.5, "red", "blue") + shade (1.5, mix (0.3, "#0abbc0", { 0.3, 0.5, 0.9 })) + lighter (@<!-- -->foreground) +</programlisting></informalexample> +</para> <para> In a <literal>stock</literal> definition, icon sources are specified as a @@ -744,6 +802,7 @@ specific portions of a RC file. @GTK_RC_TOKEN_STOCK: @GTK_RC_TOKEN_LTR: @GTK_RC_TOKEN_RTL: +@GTK_RC_TOKEN_COLOR: @GTK_RC_TOKEN_LAST: <!-- ##### FUNCTION gtk_rc_scanner_new ##### --> |