2002-05-08 16:44:52 +04:00
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<HTML>
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<BODY>
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2001-11-28 21:00:17 +03:00
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<!-- NEW PAGE -->
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2002-05-08 16:44:52 +04:00
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2002-03-24 20:26:00 +03:00
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<H2><A name="Fl_Input_">class Fl_Input_</A></H2>
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2002-05-08 16:44:52 +04:00
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1999-01-13 22:28:54 +03:00
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<HR>
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1999-01-13 22:28:54 +03:00
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<H3>Class Hierarchy</H3>
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<UL><PRE>
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1999-01-13 22:28:54 +03:00
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<A href=Fl_Widget.html#Fl_Widget>Fl_Widget</A>
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1998-12-29 17:21:17 +03:00
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1999-01-13 22:28:54 +03:00
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+----<B>Fl_Input_</B>
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1998-12-29 17:21:17 +03:00
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2002-04-11 15:52:43 +04:00
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+----<A href=Fl_Input.html#Fl_Input>Fl_Input</A>
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</PRE></UL>
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1999-01-13 22:28:54 +03:00
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<H3>Include Files</H3>
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<UL><PRE>
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1999-01-13 22:28:54 +03:00
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#include <FL/Fl_Input_.H>
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</PRE></UL>
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1999-01-13 22:28:54 +03:00
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<H3>Description</H3>
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<P>This is a virtual base class below <A
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href="Fl_Input.html#Fl_Input"><TT>Fl_Input</TT></A>. It has all
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the same interfaces, but lacks the <TT>handle()</TT> and
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<TT>draw()</TT> method. You may want to subclass it if you are
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one of those people who likes to change how the editing keys
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2001-11-29 22:24:00 +03:00
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work.
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<P>This can act like any of the subclasses of Fl_Input, by
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setting <TT>type()</TT> to one of the following values:</P>
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<UL><PRE>
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1998-12-29 17:21:17 +03:00
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#define FL_NORMAL_INPUT 0
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#define FL_FLOAT_INPUT 1
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#define FL_INT_INPUT 2
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#define FL_MULTILINE_INPUT 4
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#define FL_SECRET_INPUT 5
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</PRE></UL>
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1999-01-13 22:28:54 +03:00
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<H3>Methods</H3>
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<CENTER>
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<TABLE width="90%" summary="Fl_Input_ methods.">
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<TR><TD align="left" valign="top">
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<UL>
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<LI><A href="#Fl_Input_.Fl_Input_">Fl_Input_</A></LI>
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<LI><A href="#Fl_Input_.~Fl_Input_">~Fl_Input_</A></LI>
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<LI><A href="#Fl_Input_.copy">copy</A></LI>
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<LI><A href="#Fl_Input_.copy_cuts">copy_cuts</A></LI>
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</UL>
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</TD><TD align="left" valign="top">
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<UL>
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<LI><A href="#Fl_Input_.cut">cut</A></LI>
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<LI><A href="#Fl_Input_.drawtext">drawtext</A></LI>
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<LI><A href="#Fl_Input_.handletext">handletext</A></LI>
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<LI><A href="#Fl_Input_.input_type">input_type</A></LI>
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</UL>
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</TD><TD align="left" valign="top">
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<UL>
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<LI><A href="#Fl_Input_.insert">insert</A></LI>
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<LI><A href="#Fl_Input_.lineboundary">lineboundary</A></LI>
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<LI><A href="#Fl_Input_.mark">mark</A></LI>
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<LI><A href="#Fl_Input_.maybe_do_callback">maybe_do_callback</A></LI>
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</UL>
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</TD><TD align="left" valign="top">
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<UL>
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<LI><A href="#Fl_Input_.maximum_size">maximum_size</A></LI>
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<LI><A href="#Fl_Input_.position">position</A></LI>
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<LI><A href="#Fl_Input_.readonly">readonly</A></LI>
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<LI><A href="#Fl_Input_.replace">replace</A></LI>
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</UL>
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</TD><TD align="left" valign="top">
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<UL>
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<LI><A href="#Fl_Input_.undo">undo</A></LI>
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<LI><A href="#Fl_Input_.up_down_position">up_down_position</A></LI>
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<LI><A href="#Fl_Input_.wordboundary">wordboundary</A></LI>
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</UL>
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</TD></TR>
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</TABLE>
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</CENTER>
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<H4><A name="Fl_Input_.Fl_Input_">Fl_Input_::Fl_Input_(int x, int y, int
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w, int h, const char *label = 0)</A></H4>
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<P>Creates a new <TT>Fl_Input_</TT> widget using the given
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position, size, and label string. The default boxtype is
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<TT>FL_DOWN_BOX</TT>.
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<H4><A name="Fl_Input_.~Fl_Input_">virtual Fl_Input_::~Fl_Input_()</A></H4>
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<P>The destructor removes the widget and any value associated with it.
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<H4><A name="Fl_Input_.wordboundary">int Fl_Input_::wordboundary(int i)
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const</A></H4>
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<P>Returns true if position <TT>i</TT> is at the start or end of a word.
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<H4><A name="Fl_Input_.lineboundary">int Fl_Input_::lineboundary(int i)
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const</A></H4>
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<P>Returns true if position <TT>i</TT> is at the start or end of a line.
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<H4><A name="Fl_Input_.drawtext">void Fl_Input_::drawtext(int,int,int,int)</A></H4>
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<P>Draw the text in the passed bounding box. If <TT>damage()
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& FL_DAMAGE_ALL</TT> is true, this assumes the area has
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already been erased to <TT>color()</TT>. Otherwise it does
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minimal update and erases the area itself.
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<H4><A name="Fl_Input_.handletext">void Fl_Input_::handletext(int
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e,int,int,int,int)</A></H4>
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<P>Default handler for all event types. Your <TT>handle()</TT>
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method should call this for all events that it does not handle
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completely. You must pass it the same bounding box as passed to
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<TT>draw()</TT>. Handles <TT>FL_PUSH</TT>, <TT>FL_DRAG</TT>,
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<TT>FL_RELEASE</TT> to select text, handles <TT>FL_FOCUS</TT>
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and <TT>FL_UNFOCUS</TT> to show and hide the cursor.
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<H4><A name="Fl_Input_.up_down_position">int
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Fl_Input_::up_down_position(int i, int keepmark=0)</A></H4>
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<P>Do the correct thing for arrow keys. Sets the position (and
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mark if <I>keepmark</I> is zero) to somewhere in the same line
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as <I>i</I>, such that pressing the arrows repeatedly will cause
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the point to move up and down.
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<H4><A name="Fl_Input_.maybe_do_callback">void
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Fl_Input_::maybe_do_callback()</A></H4>
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<P>Does the callback if <TT>changed()</TT> is true or if
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<TT>when() & FL_WHEN_NOT_CHANGED</TT> is non-zero. You
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should call this at any point you think you should generate a
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callback.
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2000-06-21 01:01:37 +04:00
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<H4><A name="Fl_Input_.maximum_size">void Fl_Input_::maximum_size(int m)<BR>
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int Fl_Input_::maximum_size() const</A></H4>
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2000-06-21 01:01:37 +04:00
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<P>Sets or returns the maximum length of the input field.
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<H4><A name="Fl_Input_.position">int Fl_Input_::position() const
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<BR>int Fl_Input_::position(int new_position, int new_mark)
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<BR>int Fl_Input_::position(int new_position_and_new_mark)</A></H4>
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<P>The input widget maintains two pointers into the string. The
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"position" is where the cursor is. The
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"mark" is the other end of the selected text. If they
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are equal then there is no selection. Changing this does not
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affect the clipboard (use <TT>copy()</TT> to do that).
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<P>Changing these values causes a <TT>redraw()</TT>. The new
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values are bounds checked. The return value is non-zero if the
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new position is different than the old one. <TT>position(n)</TT>
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is the same as <TT>position(n,n)</TT>. <TT>mark(n)</TT> is the
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same as <TT>position(position(),n)</TT>.</P>
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<H4><A name="Fl_Input_.mark">int Fl_Input_::mark() const
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<BR> int Fl_Input_::mark(int new_mark)</A></H4>
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<P>Gets or sets the current selection mark. <TT>mark(n)</TT> is
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the same as <TT>position(position(),n)</TT>.
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<H4><A name="Fl_Input_.replace">int Fl_Input_::replace(int a, int b,
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const char *insert, int length=0)</A></H4>
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<P>This call does all editing of the text. It deletes the region
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between <TT>a</TT> and <TT>b</TT> (either one may be less or
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equal to the other), and then inserts the string <TT>insert</TT>
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at that point and leaves the <TT>mark()</TT> and
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<TT>position()</TT> after the insertion. Does the callback if
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<TT>when() & FL_WHEN_CHANGED</TT> and there is a change.
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<P>Set <TT>start</TT> and <TT>end</TT> equal to not delete
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anything. Set <TT>insert</TT> to <TT>NULL</TT> to not insert
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anything.</P>
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<P><TT>length</TT> must be zero or <TT>strlen(insert)</TT>, this
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saves a tiny bit of time if you happen to already know the
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length of the insertion, or can be used to insert a portion of a
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string or a string containing nul's.</P>
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<P><TT>a</TT> and <TT>b</TT> are clamped to the
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0..<TT>size()</TT> range, so it is safe to pass any values.</P>
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<P><TT>cut()</TT> and <TT>insert()</TT> are just inline
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functions that call <TT>replace()</TT>.</P>
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<H4><A name="Fl_Input_.cut">int Fl_Input_::cut()
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<BR> int Fl_Input_::cut(int n)
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<BR> int Fl_Input_::cut(int a, int b);</A></H4>
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<P><TT>Fl_Input_::cut()</TT> deletes the current selection.
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<TT>cut(n)</TT> deletes <TT>n</TT> characters after the
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<TT>position()</TT>. <TT>cut(-n)</TT> deletes <TT>n</TT>
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characters before the <TT>position()</TT>. <TT>cut(a,b)</TT>
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deletes the characters between offsets <TT>a</TT> and
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<TT>b</TT>. <TT>A</TT>, <TT>b</TT>, and <TT>n</TT> are all
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clamped to the size of the string. The mark and point are left
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where the deleted text was.
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<P>If you want the data to go into the clipboard, do
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<TT>Fl_Input_::copy()</TT> before calling
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<TT>Fl_Input_::cut()</TT>, or do <TT>Fl_Input_::copy_cuts()</TT>
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afterwards.</P>
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<H4><A name="Fl_Input_.insert">int Fl_Input_::insert(const char *t,int
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l=0)</A></H4>
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<P>Insert the string <TT>t</TT> at the current position, and
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leave the mark and position after it. If <TT>l</TT> is not zero
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then it is assumed to be <TT>strlen(t)</TT>.
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<H4><A name="Fl_Input_.copy">int Fl_Input_::copy()</A></H4>
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<P>Put the current selection between <TT>mark()</TT> and
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<TT>position()</TT> into the clipboard. Does not replace the
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old clipboard contents if <TT>position()</TT> and
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<TT>mark()</TT> are equal.
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<H4><A name="Fl_Input_.undo">int Fl_Input_::undo()</A></H4>
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<P>Does undo of several previous calls to <TT>replace()</TT>.
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Returns non-zero if any change was made.
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<H4><A name="Fl_Input_.copy_cuts">int Fl_Input_::copy_cuts()</A></H4>
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<P>Copy all the previous contiguous cuts from the undo
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information to the clipboard. This is used to make ^K work.
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2002-05-10 19:42:44 +04:00
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<H4><A name="Fl_Input_.input_type">int Fl_Input_::input_type() const
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<BR>void Fl_Input_::input_type(int)</A></H4>
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<P>Gets or sets the input field type.
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2002-05-10 19:42:44 +04:00
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<H4><A name="Fl_Input_.readonly">int Fl_Input_::readonly() const
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<BR>void Fl_Input_::readonly(int)</A></H4>
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<P>Gets or sets the read-only state of the input field.
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</BODY>
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</HTML>
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