pango-freetype-fonts-and-rendering.html

GTK+-2.0源码之pango-1.15.6.tar.gz

<tr>
<td>
<span class="term"><em class="parameter"><code>y</code></em>&#160;:</span></td>
<td>         the y position of baseline (in Pango units)
</td>
</tr>
</tbody>
</table></div>
<p>Since  1.6
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2879608"></a><h3>
<a name="pango-ft2-render-layout"></a>pango_ft2_render_layout ()</h3>
<a class="indexterm" name="id2879621"></a><pre class="programlisting">void        pango_ft2_render_layout         (FT_Bitmap *bitmap,
                                             <a href="pango-Layout-Objects.html#PangoLayout">PangoLayout</a> *layout,
                                             int x,
                                             int y);</pre>
<p>
Render a <a href="pango-Layout-Objects.html#PangoLayout"><span class="type">PangoLayout</span></a> onto a FreeType2 bitmap</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>bitmap</code></em>&#160;:</span></td>
<td>    a <span class="type">FT_Bitmap</span> to render the layout onto
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>layout</code></em>&#160;:</span></td>
<td>    a <a href="pango-Layout-Objects.html#PangoLayout"><span class="type">PangoLayout</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>x</code></em>&#160;:</span></td>
<td>         the X position of the left of the layout (in pixels)
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>y</code></em>&#160;:</span></td>
<td>         the Y position of the top of the layout (in pixels)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2879755"></a><h3>
<a name="pango-ft2-render-layout-subpixel"></a>pango_ft2_render_layout_subpixel ()</h3>
<a class="indexterm" name="id2879771"></a><pre class="programlisting">void        pango_ft2_render_layout_subpixel
                                            (FT_Bitmap *bitmap,
                                             <a href="pango-Layout-Objects.html#PangoLayout">PangoLayout</a> *layout,
                                             int x,
                                             int y);</pre>
<p>
Render a <a href="pango-Layout-Objects.html#PangoLayout"><span class="type">PangoLayout</span></a> onto a FreeType2 bitmap, with he
location specified in fixed-point Pango units rather than
pixels. (Using this will avoid extra inaccuracies from
rounding to integer pixels multiple times, even if the
final glyph positions are integers.)</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>bitmap</code></em>&#160;:</span></td>
<td>    a <span class="type">FT_Bitmap</span> to render the layout onto
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>layout</code></em>&#160;:</span></td>
<td>    a <a href="pango-Layout-Objects.html#PangoLayout"><span class="type">PangoLayout</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>x</code></em>&#160;:</span></td>
<td>         the X position of the left of the layout (in Pango units)
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>y</code></em>&#160;:</span></td>
<td>         the Y position of the top of the layout (in Pango units)
</td>
</tr>
</tbody>
</table></div>
<p>Since  1.6
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2879915"></a><h3>
<a name="pango-ft2-get-unknown-glyph"></a>pango_ft2_get_unknown_glyph ()</h3>
<a class="indexterm" name="id2879930"></a><pre class="programlisting"><a href="pango-Glyph-Storage.html#PangoGlyph">PangoGlyph</a>  pango_ft2_get_unknown_glyph     (<a href="pango-Fonts.html#PangoFont">PangoFont</a> *font);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_get_unknown_glyph</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Return the index of a glyph suitable for drawing unknown characters with
<em class="parameter"><code>font</code></em>, or <a href="pango-Glyph-Storage.html#PANGO-GLYPH-EMPTY:CAPS"><code class="literal">PANGO_GLYPH_EMPTY</code></a> if no suitable glyph found.
</p>
<p>
If you want to draw an unknown-box for a character that is not covered
by the font,
use <a href="pango-Glyph-Storage.html#PANGO-GET-UNKNOWN-GLYPH:CAPS"><code class="function">PANGO_GET_UNKNOWN_GLYPH()</code></a> instead.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>font</code></em>&#160;:</span></td>
<td> a <a href="pango-Fonts.html#PangoFont"><span class="type">PangoFont</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a glyph index into <em class="parameter"><code>font</code></em>, or <a href="pango-Glyph-Storage.html#PANGO-GLYPH-EMPTY:CAPS"><code class="literal">PANGO_GLYPH_EMPTY</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2880063"></a><h3>
<a name="pango-ft2-font-get-kerning"></a>pango_ft2_font_get_kerning ()</h3>
<a class="indexterm" name="id2880078"></a><pre class="programlisting">int         pango_ft2_font_get_kerning      (<a href="pango-Fonts.html#PangoFont">PangoFont</a> *font,
                                             <a href="pango-Glyph-Storage.html#PangoGlyph">PangoGlyph</a> left,
                                             <a href="pango-Glyph-Storage.html#PangoGlyph">PangoGlyph</a> right);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_font_get_kerning</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Retrieves kerning information for a combination of two glyphs.
</p>
<p>
Use <a href="PangoFcFont.html#pango-fc-font-kern-glyphs"><code class="function">pango_fc_font_kern_glyphs()</code></a> instead.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>font</code></em>&#160;:</span></td>
<td> a <a href="pango-Fonts.html#PangoFont"><span class="type">PangoFont</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>left</code></em>&#160;:</span></td>
<td> the left <a href="pango-Glyph-Storage.html#PangoGlyph"><span class="type">PangoGlyph</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>right</code></em>&#160;:</span></td>
<td> the right <a href="pango-Glyph-Storage.html#PangoGlyph"><span class="type">PangoGlyph</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> The amount of kerning (in Pango units) to apply for
the given combination of glyphs.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2880234"></a><h3>
<a name="pango-ft2-font-get-face"></a>pango_ft2_font_get_face ()</h3>
<a class="indexterm" name="id2880249"></a><pre class="programlisting">FT_Face     pango_ft2_font_get_face         (<a href="pango-Fonts.html#PangoFont">PangoFont</a> *font);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_font_get_face</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Returns the native FreeType2 <span class="type">FT_Face</span> structure used for this <a href="pango-Fonts.html#PangoFont"><span class="type">PangoFont</span></a>.
This may be useful if you want to use FreeType2 functions directly.
</p>
<p>
Use <a href="PangoFcFont.html#pango-fc-font-lock-face"><code class="function">pango_fc_font_lock_face()</code></a> instead; when you are done with a
face from <a href="PangoFcFont.html#pango-fc-font-lock-face"><code class="function">pango_fc_font_lock_face()</code></a> you must call
<a href="PangoFcFont.html#pango-fc-font-unlock-face"><code class="function">pango_fc_font_unlock_face()</code></a>.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>font</code></em>&#160;:</span></td>
<td> a <a href="pango-Fonts.html#PangoFont"><span class="type">PangoFont</span></a>
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a pointer to a <span class="type">FT_Face</span> structure, with the size set correctly
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2880386"></a><h3>
<a name="pango-ft2-font-get-coverage"></a>pango_ft2_font_get_coverage ()</h3>
<a class="indexterm" name="id2880403"></a><pre class="programlisting"><a href="pango-Coverage-Maps.html#PangoCoverage">PangoCoverage</a>* pango_ft2_font_get_coverage  (<a href="pango-Fonts.html#PangoFont">PangoFont</a> *font,
                                             <a href="pango-Text-Attributes.html#PangoLanguage">PangoLanguage</a> *language);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_font_get_coverage</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Gets the <a href="pango-Coverage-Maps.html#PangoCoverage"><span class="type">PangoCoverage</span></a> for a <span class="type">PangoFT2Font</span>. Use <a href="pango-Fonts.html#pango-font-get-coverage"><code class="function">pango_font_get_coverage()</code></a> instead.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>font</code></em>&#160;:</span></td>
<td> a <span class="type">PangoFT2Font</span>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>language</code></em>&#160;:</span></td>
<td> a language tag.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a <a href="pango-Coverage-Maps.html#PangoCoverage"><span class="type">PangoCoverage</span></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2880542"></a><h3>
<a name="pango-ft2-font-map-for-display"></a>pango_ft2_font_map_for_display ()</h3>
<a class="indexterm" name="id2880558"></a><pre class="programlisting"><a href="pango-Fonts.html#PangoFontMap">PangoFontMap</a>* pango_ft2_font_map_for_display
                                            (void);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_font_map_for_display</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Returns a <a href="pango-FreeType-Fonts-and-Rendering.html#PangoFT2FontMap"><span class="type">PangoFT2FontMap</span></a>. This font map is cached and should
not be freed. If the font map is no longer needed, it can
be released with <a href="pango-FreeType-Fonts-and-Rendering.html#pango-ft2-shutdown-display"><code class="function">pango_ft2_shutdown_display()</code></a>. Use of the
global PangoFT2 fontmap is deprecated; use <a href="pango-FreeType-Fonts-and-Rendering.html#pango-ft2-font-map-new"><code class="function">pango_ft2_font_map_new()</code></a>
instead.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a <a href="pango-FreeType-Fonts-and-Rendering.html#PangoFT2FontMap"><span class="type">PangoFT2FontMap</span></a>.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2880653"></a><h3>
<a name="pango-ft2-shutdown-display"></a>pango_ft2_shutdown_display ()</h3>
<a class="indexterm" name="id2880669"></a><pre class="programlisting">void        pango_ft2_shutdown_display      (void);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">pango_ft2_shutdown_display</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
Free the global fontmap. (See <a href="pango-FreeType-Fonts-and-Rendering.html#pango-ft2-font-map-for-display"><code class="function">pango_ft2_font_map_for_display()</code></a>)
Use of the global PangoFT2 fontmap is deprecated.</p>
<p>

</p>
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