Removed gtk+ docsHEAD master

author: Leo Tenenbaum <pommicket@gmail.com> 2018-08-20 21:12:06 -0400
committer: Leo Tenenbaum <pommicket@gmail.com> 2018-08-20 21:12:06 -0400
commit: 63e87c2d0c9d263f14c77b68f85c67d46ece82a9 (patch)
tree: 6260365cbf7d24f37d27669e8538227fcb72e243 /gtk+-mingw/share/gtk-doc/html/gtk3/TextWidget.html
parent: a4460f6d9453bbd7e584937686449cef3e19f052 (diff)
1 files changed, 0 insertions, 266 deletions
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-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Text Widget Overview</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
-<link rel="home" href="index.html" title="GTK+ 3 Reference Manual">
-<link rel="up" href="TextWidgetObjects.html" title="Multiline Text Editor">
-<link rel="prev" href="TextWidgetObjects.html" title="Multiline Text Editor">
-<link rel="next" href="GtkTextIter.html" title="GtkTextIter">
-<meta name="generator" content="GTK-Doc V1.18.1 (XML mode)">
-<link rel="stylesheet" href="style.css" type="text/css">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle">
-<td><a accesskey="p" href="TextWidgetObjects.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
-<td><a accesskey="u" href="TextWidgetObjects.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
-<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
-<th width="100%" align="center">GTK+ 3 Reference Manual</th>
-<td><a accesskey="n" href="GtkTextIter.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
-</tr></table>
-<div class="refentry">
-<a name="TextWidget"></a><div class="titlepage"></div>
-<div class="refnamediv"><table width="100%"><tr>
-<td valign="top">
-<h2><span class="refentrytitle">Text Widget Overview</span></h2>
-<p>Text Widget Overview — Overview of GtkTextBuffer, GtkTextView, and friends</p>
-</td>
-<td valign="top" align="right"></td>
-</tr></table></div>
-<div class="refsect1">
-<a name="id669880"></a><h2>Conceptual Overview</h2>
-<p>
-GTK+ has an extremely powerful framework for multiline text editing.  The
-primary objects involved in the process are <a class="link" href="GtkTextBuffer.html" title="GtkTextBuffer"><span class="type">GtkTextBuffer</span></a>, which represents the 
-text being edited, and <a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a>, a widget which can display a <a class="link" href="GtkTextBuffer.html" title="GtkTextBuffer"><span class="type">GtkTextBuffer</span></a>. 
-Each buffer can be displayed by any number of views.
-</p>
-<p>
-One of the important things to remember about text in GTK+ is that it's in the
-UTF-8 encoding. This means that one character can be encoded as multiple
-bytes. Character counts are usually referred to as
-<em class="firstterm">offsets</em>, while byte counts are called
-<em class="firstterm">indexes</em>. If you confuse these two, things will work fine
-with ASCII, but as soon as your buffer contains multibyte characters, bad 
-things will happen.
-</p>
-<p>
-Text in a buffer can be marked with <em class="firstterm">tags</em>. A tag is an
-attribute that can be applied to some range of text. For example, a tag might 
-be called "bold" and make the text inside the tag bold. However, the tag
-concept is more general than that; tags don't have to affect appearance. They 
-can instead affect the behavior of mouse and key presses, "lock" a range of 
-text so the user can't edit it, or countless other things. A tag is 
-represented by a <a class="link" href="GtkTextTag.html" title="GtkTextTag"><span class="type">GtkTextTag</span></a> object. One <a class="link" href="GtkTextTag.html" title="GtkTextTag"><span class="type">GtkTextTag</span></a> can be applied to any 
-number of text ranges in any number of buffers.
-</p>
-<p>
-Each tag is stored in a <a class="link" href="GtkTextTagTable.html" title="GtkTextTagTable"><span class="type">GtkTextTagTable</span></a>. A tag table defines a set of
-tags that can be used together. Each buffer has one tag table associated with
-it; only tags from that tag table can be used with the buffer. A single tag
-table can be shared between multiple buffers, however.
-</p>
-<p>
-Tags can have names, which is convenient sometimes (for example, you can name
-your tag that makes things bold "bold"), but they can also be anonymous (which
-is convenient if you're creating tags on-the-fly).
-</p>
-<p>
-Most text manipulation is accomplished with <em class="firstterm">iterators</em>,
-represented by a <a class="link" href="GtkTextIter.html" title="GtkTextIter"><span class="type">GtkTextIter</span></a>. An iterator represents a position between two 
-characters in the text buffer. <a class="link" href="GtkTextIter.html" title="GtkTextIter"><span class="type">GtkTextIter</span></a> is a struct designed to be 
-allocated on the stack; it's guaranteed to be copiable by value and never 
-contain any heap-allocated data. Iterators are not valid indefinitely; 
-whenever the buffer is modified in a way that affects the number of characters 
-in the buffer, all outstanding iterators become invalid. (Note that deleting 
-5 characters and then reinserting 5 still invalidates iterators, though you 
-end up with the same number of characters you pass through a state with a 
-different number).
-</p>
-<p>
-Because of this, iterators can't be used to preserve positions across buffer
-modifications. To preserve a position, the <a class="link" href="GtkTextMark.html" title="GtkTextMark"><span class="type">GtkTextMark</span></a> object is ideal. You
-can think of a mark as an invisible cursor or insertion point; it floats in 
-the buffer, saving a position. If the text surrounding the mark is deleted, 
-the mark remains in the position the text once occupied; if text is inserted 
-at the mark, the mark ends up either to the left or to the right of the new 
-text, depending on its <em class="firstterm">gravity</em>. The standard text 
-cursor in left-to-right languages is a mark with right gravity, because it 
-stays to the right of inserted text.
-</p>
-<p>
-Like tags, marks can be either named or anonymous. There are two marks built-in
-to <a class="link" href="GtkTextBuffer.html" title="GtkTextBuffer"><span class="type">GtkTextBuffer</span></a>; these are named <code class="literal">"insert"</code> and 
-<code class="literal">"selection_bound"</code> and refer to the insertion point and the 
-boundary of the selection which is not the insertion point, respectively. If 
-no text is selected, these two marks will be in the same position. You can 
-manipulate what is selected and where the cursor appears by moving these 
-marks around.
-<sup>[<a name="id815271" href="#ftn.id815271" class="footnote">2</a>]</sup>
-</p>
-<p>
-Text buffers always contain at least one line, but may be empty (that
-is, buffers can contain zero characters). The last line in the text
-buffer never ends in a line separator (such as newline); the other
-lines in the buffer always end in a line separator. Line separators
-count as characters when computing character counts and character
-offsets. Note that some Unicode line separators are represented with 
-multiple bytes in UTF-8, and the two-character sequence "\r\n" is also
-considered a line separator.
-</p>
-</div>
-<div class="refsect1">
-<a name="id815299"></a><h2>Simple Example</h2>
-<p>
-The simplest usage of <a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a>  might look like this:
-</p>
-<div class="informalexample">
-  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
-    <tbody>
-      <tr>
-        <td class="listing_lines" align="right"><pre>1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13</pre></td>
-        <td class="listing_code"><pre class="programlisting"><span class="usertype">GtkWidget</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">view</span><span class="symbol">;</span>
-<span class="usertype">GtkTextBuffer</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">buffer</span><span class="symbol">;</span>
-
-<span class="normal">view </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTextView.html#gtk-text-view-new">gtk_text_view_new</a></span><span class="normal"> </span><span class="symbol">();</span>
-
-<span class="normal">buffer </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTextView.html#gtk-text-view-get-buffer">gtk_text_view_get_buffer</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TEXT_VIEW</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">view</span><span class="symbol">));</span>
-
-<span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-set-text">gtk_text_buffer_set_text</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Hello, this is some text"</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">-</span><span class="number">1</span><span class="symbol">);</span>
-
-<span class="comment">/* Now you might put the view in a container and display it on the</span>
-<span class="comment"> * screen; when the user edits the text, signals on the buffer</span>
-<span class="comment"> * will be emitted, such as "changed", "insert_text", and so on.</span>
-<span class="comment"> */</span></pre></td>
-      </tr>
-    </tbody>
-  </table>
-</div>
-
-<p>
-In many cases it's also convenient to first create the buffer with 
-<a class="link" href="GtkTextBuffer.html#gtk-text-buffer-new" title="gtk_text_buffer_new ()"><code class="function">gtk_text_buffer_new()</code></a>, then create a widget for that buffer with 
-<a class="link" href="GtkTextView.html#gtk-text-view-new-with-buffer" title="gtk_text_view_new_with_buffer ()"><code class="function">gtk_text_view_new_with_buffer()</code></a>. Or you can change the buffer the widget 
-displays after the widget is created with <a class="link" href="GtkTextView.html#gtk-text-view-set-buffer" title="gtk_text_view_set_buffer ()"><code class="function">gtk_text_view_set_buffer()</code></a>.
-</p>
-</div>
-<div class="refsect1">
-<a name="id820343"></a><h2>Example of Changing Text Attributes</h2>
-<p>
-
-There are two ways to affect text attributes in <a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a>.
-You can change the default attributes for a given <a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a>, and you can 
-apply tags that change the attributes for a region of text.  For text features 
-that come from the theme — such as font and foreground color — use 
-standard <a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> functions such as <a class="link" href="GtkWidget.html#gtk-widget-modify-font" title="gtk_widget_modify_font ()"><code class="function">gtk_widget_modify_font()</code></a> or
-<code class="function">gtk_widget_override_text()</code>. For other attributes there are dedicated methods on
-<a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a> such as <a class="link" href="GtkTextView.html#gtk-text-view-set-tabs" title="gtk_text_view_set_tabs ()"><code class="function">gtk_text_view_set_tabs()</code></a>.
-
-</p>
-<div class="informalexample">
-  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
-    <tbody>
-      <tr>
-        <td class="listing_lines" align="right"><pre>1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31</pre></td>
-        <td class="listing_code"><pre class="programlisting"><span class="usertype">GtkWidget</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">view</span><span class="symbol">;</span>
-<span class="usertype">GtkTextBuffer</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">buffer</span><span class="symbol">;</span>
-<span class="usertype">GtkTextIter</span><span class="normal"> start</span><span class="symbol">,</span><span class="normal"> end</span><span class="symbol">;</span>
-<span class="usertype">PangoFontDescription</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">font_desc</span><span class="symbol">;</span>
-<span class="usertype">GdkRGBA</span><span class="normal"> rgba</span><span class="symbol">;</span>
-<span class="usertype">GtkTextTag</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">tag</span><span class="symbol">;</span>
-
-<span class="normal">view </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTextView.html#gtk-text-view-new">gtk_text_view_new</a></span><span class="normal"> </span><span class="symbol">();</span>
-
-<span class="normal">buffer </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTextView.html#gtk-text-view-get-buffer">gtk_text_view_get_buffer</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TEXT_VIEW</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">view</span><span class="symbol">));</span>
-
-<span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-set-text">gtk_text_buffer_set_text</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Hello, this is some text"</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">-</span><span class="number">1</span><span class="symbol">);</span>
-
-<span class="comment">/* Change default font throughout the widget */</span>
-<span class="normal">font_desc </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="/home/mclasen/gnome/share/gtk-doc/html/pango/pango-Fonts.html#pango-font-description-from-string">pango_font_description_from_string</a></span><span class="normal"> </span><span class="symbol">(</span><span class="string">"Serif 15"</span><span class="symbol">);</span>
-<span class="function"><a href="GtkWidget.html#gtk-widget-modify-font">gtk_widget_modify_font</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">view</span><span class="symbol">,</span><span class="normal"> font_desc</span><span class="symbol">);</span>
-<span class="function"><a href="/home/mclasen/gnome/share/gtk-doc/html/pango/pango-Fonts.html#pango-font-description-free">pango_font_description_free</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">font_desc</span><span class="symbol">);</span>
-
-<span class="comment">/* Change default color throughout the widget */</span>
-<span class="function"><a href="http://developer.gnome.org/gdk/gdk3-RGBA-Colors.html#gdk-rgba-parse">gdk_rgba_parse</a></span><span class="normal"> </span><span class="symbol">(</span><span class="string">"green"</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">rgba</span><span class="symbol">);</span>
-<span class="function"><a href="GtkWidget.html#gtk-widget-override-color">gtk_widget_override_color</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">view</span><span class="symbol">,</span><span class="normal"> <a href="gtk3-Standard-Enumerations.html#GTK-STATE-FLAG-NORMAL:CAPS">GTK_STATE_FLAG_NORMAL</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">rgba</span><span class="symbol">);</span>
-
-<span class="comment">/* Change left margin throughout the widget */</span>
-<span class="function"><a href="GtkTextView.html#gtk-text-view-set-left-margin">gtk_text_view_set_left_margin</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TEXT_VIEW</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">view</span><span class="symbol">),</span><span class="normal"> </span><span class="number">30</span><span class="symbol">);</span>
-
-<span class="comment">/* Use a tag to change the color for just one part of the widget */</span>
-<span class="normal">tag </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-create-tag">gtk_text_buffer_create_tag</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"blue_foreground"</span><span class="symbol">,</span>
-<span class="normal">                        </span><span class="string">"foreground"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"blue"</span><span class="symbol">,</span><span class="normal"> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">);</span><span class="normal">  </span>
-<span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-get-iter-at-offset">gtk_text_buffer_get_iter_at_offset</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">start</span><span class="symbol">,</span><span class="normal"> </span><span class="number">7</span><span class="symbol">);</span>
-<span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-get-iter-at-offset">gtk_text_buffer_get_iter_at_offset</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">end</span><span class="symbol">,</span><span class="normal"> </span><span class="number">12</span><span class="symbol">);</span>
-<span class="function"><a href="GtkTextBuffer.html#gtk-text-buffer-apply-tag">gtk_text_buffer_apply_tag</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buffer</span><span class="symbol">,</span><span class="normal"> tag</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">start</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">end</span><span class="symbol">);</span></pre></td>
-      </tr>
-    </tbody>
-  </table>
-</div>
-
-<p>
-
-</p>
-<p>
-The <span class="application">gtk-demo</span> application that comes with
-GTK+ contains more example code for <a class="link" href="GtkTextView.html" title="GtkTextView"><span class="type">GtkTextView</span></a>.
-</p>
-</div>
-<div class="footnotes">
-<br><hr width="100" align="left">
-<div class="footnote"><p><sup>[<a id="ftn.id815271" href="#id815271" class="para">2</a>] </sup>
-If you want to place the cursor in response to a user action, be sure to use
-<a class="link" href="GtkTextBuffer.html#gtk-text-buffer-place-cursor" title="gtk_text_buffer_place_cursor ()"><code class="function">gtk_text_buffer_place_cursor()</code></a>, which moves both at once without causing a 
-temporary selection (moving one then the other temporarily selects the range in 
-between the old and new positions).
-</p></div>
-</div>
-</div>
-<div class="footer">
-<hr>
-          Generated by GTK-Doc V1.18.1</div>
-</body>
-</html>
-\ No newline at end of file
author	Leo Tenenbaum <pommicket@gmail.com>	2018-08-20 21:12:06 -0400
committer	Leo Tenenbaum <pommicket@gmail.com>	2018-08-20 21:12:06 -0400
commit	63e87c2d0c9d263f14c77b68f85c67d46ece82a9 (patch)
tree	6260365cbf7d24f37d27669e8538227fcb72e243 /gtk+-mingw/share/gtk-doc/html/gtk3/TextWidget.html
parent	a4460f6d9453bbd7e584937686449cef3e19f052 (diff)