pangocairo.xml

GTK+-2.0源码之pango-1.15.6.tar.gz

<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> the newly created <link linkend="PangoLayout"><type>PangoLayout</type></link>. Free with
  <link linkend="g-object-unref"><function>g_object_unref()</function></link>.

</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-update-layout" role="function" condition="since:1.10"/>pango_cairo_update_layout ()</title>
<indexterm role="1.10"><primary>pango_cairo_update_layout</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_update_layout       (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoLayout">PangoLayout</link> *layout);</programlisting>
<para>
Updates the private <link linkend="PangoContext"><type>PangoContext</type></link> of a <link linkend="PangoLayout"><type>PangoLayout</type></link> created with
<link linkend="pango-cairo-create-layout"><function>pango_cairo_create_layout()</function></link> to match the current transformation
and target surface of a Cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>layout</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoLayout"><type>PangoLayout</type></link>, from <link linkend="pango-cairo-create-layout"><function>pango_cairo_create_layout()</function></link>
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-show-glyph-string" role="function" condition="since:1.10"/>pango_cairo_show_glyph_string ()</title>
<indexterm role="1.10"><primary>pango_cairo_show_glyph_string</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_show_glyph_string   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoFont">PangoFont</link> *font,
                                             <link linkend="PangoGlyphString">PangoGlyphString</link> *glyphs);</programlisting>
<para>
Draws the glyphs in <parameter>glyphs</parameter> in the specified cairo context.
The origin of the glyphs (the left edge of the baseline) will
be drawn at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>font</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoFont"><type>PangoFont</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>glyphs</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoGlyphString"><type>PangoGlyphString</type></link>
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-show-layout-line" role="function" condition="since:1.10"/>pango_cairo_show_layout_line ()</title>
<indexterm role="1.10"><primary>pango_cairo_show_layout_line</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_show_layout_line    (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoLayoutLine">PangoLayoutLine</link> *line);</programlisting>
<para>
Draws a <link linkend="PangoLayoutLine"><type>PangoLayoutLine</type></link> in the specified cairo context.
The origin of the glyphs (the left edge of the line) will
be drawn at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>line</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoLayoutLine"><type>PangoLayoutLine</type></link>
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-show-layout" role="function" condition="since:1.10"/>pango_cairo_show_layout ()</title>
<indexterm role="1.10"><primary>pango_cairo_show_layout</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_show_layout         (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoLayout">PangoLayout</link> *layout);</programlisting>
<para>
Draws a <link linkend="PangoLayoutLine"><type>PangoLayoutLine</type></link> in the specified cairo context.
The top-left corner of the <link linkend="PangoLayout"><type>PangoLayout</type></link> will be drawn
at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>layout</parameter>&nbsp;:</term>
<listitem><simpara> a Pango layout
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-show-error-underline" role="function" condition="since:1.14"/>pango_cairo_show_error_underline ()</title>
<indexterm role="1.14"><primary>pango_cairo_show_error_underline</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_show_error_underline
                                            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> x,
                                             <link linkend="double">double</link> y,
                                             <link linkend="double">double</link> width,
                                             <link linkend="double">double</link> height);</programlisting>
<para>
Draw a squiggly line in the specified cairo context that approximately
covers the given rectangle in the style of an underline used to indicate a
spelling error.  (The width of the underline is rounded to an integer
number of up/down segments and the resulting rectangle is centered in the
original rectangle)</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>x</parameter>&nbsp;:</term>
<listitem><simpara> The X coordinate of one corner of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>y</parameter>&nbsp;:</term>
<listitem><simpara> The Y coordinate of one corner of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>width</parameter>&nbsp;:</term>
<listitem><simpara> Non-negative width of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>height</parameter>&nbsp;:</term>
<listitem><simpara> Non-negative height of the rectangle
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.14
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-glyph-string-path" role="function" condition="since:1.10"/>pango_cairo_glyph_string_path ()</title>
<indexterm role="1.10"><primary>pango_cairo_glyph_string_path</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_glyph_string_path   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoFont">PangoFont</link> *font,
                                             <link linkend="PangoGlyphString">PangoGlyphString</link> *glyphs);</programlisting>
<para>
Adds the glyphs in <parameter>glyphs</parameter> to the current path in the specified
cairo context. The origin of the glyphs (the left edge of the baseline)
will be at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>font</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoFont"><type>PangoFont</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>glyphs</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoGlyphString"><type>PangoGlyphString</type></link>
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-layout-line-path" role="function" condition="since:1.10"/>pango_cairo_layout_line_path ()</title>
<indexterm role="1.10"><primary>pango_cairo_layout_line_path</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_layout_line_path    (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoLayoutLine">PangoLayoutLine</link> *line);</programlisting>
<para>
Adds the text in <link linkend="PangoLayoutLine"><type>PangoLayoutLine</type></link> to the current path in the
specified cairo context.  The origin of the glyphs (the left edge
of the line) will be at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>line</parameter>&nbsp;:</term>
<listitem><simpara> a <link linkend="PangoLayoutLine"><type>PangoLayoutLine</type></link>
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-layout-path" role="function" condition="since:1.10"/>pango_cairo_layout_path ()</title>
<indexterm role="1.10"><primary>pango_cairo_layout_path</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_layout_path         (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="PangoLayout">PangoLayout</link> *layout);</programlisting>
<para>
Adds the text in a <link linkend="PangoLayout"><type>PangoLayout</type></link> to the current path in the
specified cairo context.  The top-left corner of the <link linkend="PangoLayout"><type>PangoLayout</type></link>
will be at the current point of the cairo context.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>layout</parameter>&nbsp;:</term>
<listitem><simpara> a Pango layout
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.10
</para></refsect2>
<refsect2>
<title><anchor id="pango-cairo-error-underline-path" role="function" condition="since:1.14"/>pango_cairo_error_underline_path ()</title>
<indexterm role="1.14"><primary>pango_cairo_error_underline_path</primary></indexterm><programlisting><link linkend="void">void</link>        pango_cairo_error_underline_path
                                            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> x,
                                             <link linkend="double">double</link> y,
                                             <link linkend="double">double</link> width,
                                             <link linkend="double">double</link> height);</programlisting>
<para>
Add a squiggly line to the current path in the specified cairo context that
approximately covers the given rectangle in the style of an underline used
to indicate a spelling error.  (The width of the underline is rounded to an
integer number of up/down segments and the resulting rectangle is centered
in the original rectangle)</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>cr</parameter>&nbsp;:</term>
<listitem><simpara> a Cairo context
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>x</parameter>&nbsp;:</term>
<listitem><simpara> The X coordinate of one corner of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>y</parameter>&nbsp;:</term>
<listitem><simpara> The Y coordinate of one corner of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>width</parameter>&nbsp;:</term>
<listitem><simpara> Non-negative width of the rectangle
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>height</parameter>&nbsp;:</term>
<listitem><simpara> Non-negative height of the rectangle
</simpara></listitem></varlistentry>
</variablelist><para>Since  1.14
</para></refsect2>

</refsect1>




</refentry>