gtkcurve.html

最新gtk中文资料集

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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>a <a class="link" href="GtkCurve.html" title="GtkCurve"><span class="type">GtkCurve</span></a>.
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<td><p><span class="term"><em class="parameter"><code>gamma_</code></em>&#160;:</span></p></td>
<td>the gamma value.


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<div class="refsect2" lang="en">
<a name="id4402803"></a><h3>
<a name="gtk-curve-set-range"></a>gtk_curve_set_range ()</h3>
<a class="indexterm" name="id4402816"></a><pre class="programlisting">void                gtk_curve_set_range                 (<a class="link" href="GtkCurve.html" title="GtkCurve">GtkCurve</a> *curve,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> min_x,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> max_x,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> min_y,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> max_y);</pre>
<p>
Sets the minimum and maximum x and y values of the curve.
The curve is also reset with a call to <a class="link" href="GtkCurve.html#gtk-curve-reset"><code class="function">gtk_curve_reset()</code></a>.
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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>a <a class="link" href="GtkCurve.html" title="GtkCurve"><span class="type">GtkCurve</span></a>.
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<td><p><span class="term"><em class="parameter"><code>min_x</code></em>&#160;:</span></p></td>
<td>the minimum x value.
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<td><p><span class="term"><em class="parameter"><code>max_x</code></em>&#160;:</span></p></td>
<td>the maximum x value.
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<td><p><span class="term"><em class="parameter"><code>min_y</code></em>&#160;:</span></p></td>
<td>the minimum y value.
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<td><p><span class="term"><em class="parameter"><code>max_y</code></em>&#160;:</span></p></td>
<td>the maximum y value.


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<div class="refsect2" lang="en">
<a name="id4402969"></a><h3>
<a name="gtk-curve-get-vector"></a>gtk_curve_get_vector ()</h3>
<a class="indexterm" name="id4402982"></a><pre class="programlisting">void                gtk_curve_get_vector                (<a class="link" href="GtkCurve.html" title="GtkCurve">GtkCurve</a> *curve,
                                                         int veclen,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> vector[]);</pre>
<p>
Returns a vector of points representing the curve.
</p>
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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>a <a class="link" href="GtkCurve.html" title="GtkCurve"><span class="type">GtkCurve</span></a>.
</td>
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<td><p><span class="term"><em class="parameter"><code>veclen</code></em>&#160;:</span></p></td>
<td>the number of points to calculate.
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<td><p><span class="term"><em class="parameter"><code>vector</code></em>&#160;:</span></p></td>
<td>returns the points.


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<div class="refsect2" lang="en">
<a name="id4403081"></a><h3>
<a name="gtk-curve-set-vector"></a>gtk_curve_set_vector ()</h3>
<a class="indexterm" name="id4403094"></a><pre class="programlisting">void                gtk_curve_set_vector                (<a class="link" href="GtkCurve.html" title="GtkCurve">GtkCurve</a> *curve,
                                                         int veclen,
                                                         <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> vector[]);</pre>
<p>
Sets the vector of points on the curve.
The curve type is set to <code class="literal">GTK_CURVE_TYPE_FREE</code>.
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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>a <a class="link" href="GtkCurve.html" title="GtkCurve"><span class="type">GtkCurve</span></a>.
</td>
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<td><p><span class="term"><em class="parameter"><code>veclen</code></em>&#160;:</span></p></td>
<td>the number of points.
</td>
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<td><p><span class="term"><em class="parameter"><code>vector</code></em>&#160;:</span></p></td>
<td>the points on the curve.


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<div class="refsect2" lang="en">
<a name="id4403203"></a><h3>
<a name="gtk-curve-set-curve-type"></a>gtk_curve_set_curve_type ()</h3>
<a class="indexterm" name="id4403216"></a><pre class="programlisting">void                gtk_curve_set_curve_type            (<a class="link" href="GtkCurve.html" title="GtkCurve">GtkCurve</a> *curve,
                                                         <a class="link" href="gtk-Standard-Enumerations.html#GtkCurveType">GtkCurveType</a> type);</pre>
<p>
Sets the type of the curve. The curve will remain unchanged except when
changing from a free curve to a linear or spline curve, in which case the
curve will be changed as little as possible.
</p>
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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>a <a class="link" href="GtkCurve.html" title="GtkCurve"><span class="type">GtkCurve</span></a>.
</td>
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<td><p><span class="term"><em class="parameter"><code>type</code></em>&#160;:</span></p></td>
<td>the type of the curve.


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<div class="refsect1" lang="en">
<a name="id4403297"></a><h2>Property Details</h2>
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<a name="id4403308"></a><h3>
<a name="GtkCurve--curve-type"></a>The <code class="literal">"curve-type"</code> property</h3>
<a class="indexterm" name="id4403324"></a><pre class="programlisting">  "curve-type"               <a class="link" href="gtk-Standard-Enumerations.html#GtkCurveType">GtkCurveType</a>          : Read / Write</pre>
<p>Is this curve linear, spline interpolated, or free-form.</p>
<p>Default value: GTK_CURVE_TYPE_LINEAR</p>
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<div class="refsect2" lang="en">
<a name="id4403352"></a><h3>
<a name="GtkCurve--max-x"></a>The <code class="literal">"max-x"</code> property</h3>
<a class="indexterm" name="id4403368"></a><pre class="programlisting">  "max-x"                    <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a>                : Read / Write</pre>
<p>Maximum possible X value.</p>
<p>Default value: 1</p>
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<div class="refsect2" lang="en">
<a name="id4403395"></a><h3>
<a name="GtkCurve--max-y"></a>The <code class="literal">"max-y"</code> property</h3>
<a class="indexterm" name="id4403411"></a><pre class="programlisting">  "max-y"                    <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a>                : Read / Write</pre>
<p>Maximum possible value for Y.</p>
<p>Default value: 1</p>
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<div class="refsect2" lang="en">
<a name="id4403439"></a><h3>
<a name="GtkCurve--min-x"></a>The <code class="literal">"min-x"</code> property</h3>
<a class="indexterm" name="id4403455"></a><pre class="programlisting">  "min-x"                    <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a>                : Read / Write</pre>
<p>Minimum possible value for X.</p>
<p>Default value: 0</p>
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<div class="refsect2" lang="en">
<a name="id4403482"></a><h3>
<a name="GtkCurve--min-y"></a>The <code class="literal">"min-y"</code> property</h3>
<a class="indexterm" name="id4403498"></a><pre class="programlisting">  "min-y"                    <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a>                : Read / Write</pre>
<p>Minimum possible value for Y.</p>
<p>Default value: 0</p>
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<div class="refsect1" lang="en">
<a name="id4403527"></a><h2>Signal Details</h2>
<div class="refsect2" lang="en">
<a name="id4403537"></a><h3>
<a name="GtkCurve-curve-type-changed"></a>The <code class="literal">"curve-type-changed"</code> signal</h3>
<a class="indexterm" name="id4403553"></a><pre class="programlisting">void                user_function                      (<a class="link" href="GtkCurve.html" title="GtkCurve">GtkCurve</a> *curve,
                                                        <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"
>gpointer</a>  user_data)      : Run First</pre>
<p>
Emitted when the curve type has been changed.
The curve type can be changed explicitly with a call to
<a class="link" href="GtkCurve.html#gtk-curve-set-curve-type"><code class="function">gtk_curve_set_curve_type()</code></a>. It is also changed as a side-effect of
calling <a class="link" href="GtkCurve.html#gtk-curve-reset"><code class="function">gtk_curve_reset()</code></a> or <a class="link" href="GtkCurve.html#gtk-curve-set-gamma"><code class="function">gtk_curve_set_gamma()</code></a>.
</p>
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<td><p><span class="term"><em class="parameter"><code>curve</code></em>&#160;:</span></p></td>
<td>the object which received the signal.

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<td><p><span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></p></td>
<td>user data set when the signal handler was connected.</td>
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<div class="refsect1" lang="en">
<a name="id4403659"></a><h2>See Also</h2>
<p>
</p>
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<td><p><span class="term"><a class="link" href="GtkGammaCurve.html" title="GtkGammaCurve"><span class="type">GtkGammaCurve</span></a></span></p></td>
<td><p>a subclass for editing gamma curves.</p></td>
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<p>

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<div class="refsect1" lang="en">
<a name="id4403690"></a><div class="refsect2" lang="en"><a name="id4403691"></a></div>
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<div class="refsect2" lang="en"><a name="id4403692"></a></div>
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