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fltk/documentation/Fl_Text_Display.html
Michael R Sweet 70ca1d156b Fl_Value_Slider::draw_bg() didn't always apply the clipping 
rectangle (STR #235)

fl_filename_relative() returned the wrong string if the absolute
pathname was equal to the current working directory (STR #224)

Fl_Help_Dialog didn't correctly restore the scroll position when
going forward/back in the link history if the file changed (STR
#218)

glutGetModifiers() did not mask off extra state bits, confusing
some GLUT-based applications (STR #213)

Fixed mouse capture problems on MacOS X (STR #209, STR #229)

Fl_Sys_Menu_Bar is now built into the library for MacOS X (STR
#229)

Fl_Menu_ now provides item_pathname() methods to get the
"pathname" of a menu item, e.g. "File/Quit" (STR #283)

Fl_Text_Display now provides cursor_color() methods to get and
set the cursor color (STR #271)

Fl_Scroll didn't honor FL_NO_BOX (STR #305)

FLUID declaration blocks didn't support public/private
definitions (STR #301)


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2004-03-11 05:17:12 +00:00

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<HTML>
<BODY>
<!-- NEW PAGE -->
<H2><A name="Fl_Text_Display">class Fl_Text_Display</A></H2>
<HR>
<H3>Class Hierarchy</H3>
<UL>
<PRE>
<A href="Fl_Group.html">Fl_Group</A>
|
+----<B>Fl_Text_Display</B>----<A HREF="Fl_Text_Buffer.html">Fl_Text_Buffer</A>
|
+----<A href="Fl_Text_Editor.html">Fl_Text_Editor</A>
</PRE>
</UL>
<H3>Include Files</H3>
<UL>
<PRE>
#include &lt;FL/Fl_Text_Display.H&gt;
</PRE>
</UL>
<H3>Description</H3>
<P>This is the FLTK text display widget. It allows the user to
view multiple lines of text and supports highlighting and
scrolling. The buffer that is displayed in the widget is managed
by the <A HREF="Fl_Text_Buffer.html"><TT>Fl_Text_Buffer</TT></A>
class.
<H3>Methods</H3>
<TABLE CELLPADDING="10">
<TR VALIGN="TOP"><TD><UL>
<LI><A HREF="#Fl_Text_Display.Fl_Text_Display">Fl_Text_Display</A></LI>
<LI><A HREF="#Fl_Text_Display.~Fl_Text_Display">~Fl_Text_Display</A></LI>
<LI><A HREF="#Fl_Text_Display.buffer">buffer</A></LI>
<LI><A HREF="#Fl_Text_Display.cursor_color">cursor_color</A></LI>
<LI><A HREF="#Fl_Text_Display.cursor_style">cursor_style</A></LI>
<LI><A HREF="#Fl_Text_Display.hide_cursor">hide_cursor</A></LI>
<LI><A HREF="#Fl_Text_Display.highlight_data">highlight_data</A></LI>
<LI><A HREF="#Fl_Text_Display.in_selection">in_selection</A></LI>
<LI><A HREF="#Fl_Text_Display.insert">insert</A></LI>
<LI><A HREF="#Fl_Text_Display.insert_position">insert_position</A></LI>
<LI><A HREF="#Fl_Text_Display.move_down">move_down</A></LI>
</UL></TD><TD><UL>
<LI><A HREF="#Fl_Text_Display.move_left">move_left</A></LI>
<LI><A HREF="#Fl_Text_Display.move_right">move_right</A></LI>
<LI><A HREF="#Fl_Text_Display.move_up">move_up</A></LI>
<LI><A HREF="#Fl_Text_Display.next_word">next_word</A></LI>
<LI><A HREF="#Fl_Text_Display.overstrike">overstrike</A></LI>
<LI><A HREF="#Fl_Text_Display.position_style">position_style</A></LI>
<LI><A HREF="#Fl_Text_Display.previous_word">previous_word</A></LI>
<LI><A HREF="#Fl_Text_Display.redisplay_range">redisplay_range</A></LI>
<LI><A HREF="#Fl_Text_Display.scrollbar_align">scrollbar_align</A></LI>
</UL></TD><TD><UL>
<LI><A HREF="#Fl_Text_Display.scrollbar_width">scrollbar_width</A></LI>
<LI><A HREF="#Fl_Text_Display.scroll">scroll</A></LI>
<LI><A HREF="#Fl_Text_Display.show_cursor">show_cursor</A></LI>
<LI><A HREF="#Fl_Text_Display.show_insert_position">show_insert_position</A></LI>
<LI><A HREF="#Fl_Text_Display.textcolor">textcolor</A></LI>
<LI><A HREF="#Fl_Text_Display.textfont">textfont</A></LI>
<LI><A HREF="#Fl_Text_Display.textsize">textsize</A></LI>
<LI><A HREF="#Fl_Text_Display.word_end">word_end</A></LI>
<LI><A HREF="#Fl_Text_Display.word_start">word_start</A></LI>
</UL></TD></TR>
</TABLE>
<H4><A NAME="Fl_Text_Display.Fl_Text_Display">Fl_Text_Display(int X, int Y, int W, int H, const char *l = 0);</A></H4>
<P>Creates a new text display widget.
<H4><A NAME="Fl_Text_Display.~Fl_Text_Display">~Fl_Text_Display();</A></H4>
<P>Destroys a text display widget.
<H4><A NAME="Fl_Text_Display.buffer">void buffer(Fl_Text_Buffer* buf);<BR>
void buffer(Fl_Text_Buffer&amp; buf);<BR>
Fl_Text_Buffer* buffer();</A></H4>
<P>Sets or gets the current text buffer associated with the text widget.
Multiple text widgets can be associated with the same text buffer.
<H4><A NAME="Fl_Text_Display.cursor_color">void cursor_color(Fl_Color c);</A><br>
Fl_Color cursor_color();</H4>
<P>Sets or gets the text cursor color.
<H4><A NAME="Fl_Text_Display.cursor_style">void cursor_style(int style);</A></H4>
<P>Sets the text cursor style to one of the following:
<UL>
<LI><CODE>Fl_Text_Display::NORMAL_CURSOR</CODE> - Shows an I beam.
<LI><CODE>Fl_Text_Display::CARET_CURSOR</CODE> - Shows a caret under the text.
<LI><CODE>Fl_Text_Display::DIM_CURSOR</CODE> - Shows a dimmed I beam.
<LI><CODE>Fl_Text_Display::BLOCK_CURSOR</CODE> - Shows an unfilled box around the current
character.
<LI><CODE>Fl_Text_Display::HEAVY_CURSOR</CODE> - Shows a thick I beam.
</UL>
<H4><A NAME="Fl_Text_Display.hide_cursor">void hide_cursor();</A></H4>
<P>Hides the text cursor.
<H4><A NAME="Fl_Text_Display.highlight_data">void highlight_data(Fl_Text_Buffer *styleBuffer,
Style_Table_Entry *styleTable, int nStyles, char
unfinishedStyle, Unfinished_Style_Cb unfinishedHighlightCB, void
*cbArg);</A></H4>
<P>Sets the text buffer, text styles, and callbacks to use when
displaying text in the widget. Style buffers cannot be shared
between widgets and are often used to do syntax highlighting.
The editor example from <A HREF="editor.html">Chapter 4</A>
shows how to use the <CODE>highlight_data()</CODE> method.
<H4><A NAME="Fl_Text_Display.in_selection">int in_selection(int x, int y);</A></H4>
<P>Returns non-zero if the specified mouse position is inside the current
selection.
<H4><A NAME="Fl_Text_Display.insert">void insert(const char* text);</A></H4>
<P>Inserts text at the current insert position.
<H4><A NAME="Fl_Text_Display.insert_position">void insert_position(int newPos);<BR>
int insert_position()</A></H4>
<P>Sets or gets the current insert position.
<H4><A NAME="Fl_Text_Display.move_down">int move_down();</A></H4>
<P>Moves the current insert position down one line.
<H4><A NAME="Fl_Text_Display.move_left">int move_left();</A></H4>
<P>Moves the current insert position left one character.
<H4><A NAME="Fl_Text_Display.move_right">int move_right();</A></H4>
<P>Moves the current insert position right one character.
<H4><A NAME="Fl_Text_Display.move_up">int move_up();</A></H4>
<P>Moves the current insert position up one line.
<H4><A NAME="Fl_Text_Display.next_word">void next_word(void);</A></H4>
<P>Moves the current insert position right one word.
<H4><A NAME="Fl_Text_Display.overstrike">void overstrike(const char* text);</A></H4>
<P>Replaces text at the current insert position.
<H4><A NAME="Fl_Text_Display.position_style">int position_style(int lineStartPos, int lineLen, int lineIndex,
int dispIndex);</A></H4>
<P>Returns the style associated with the character at position
<CODE>lineStartPos + lineIndex</CODE>.
<H4><A NAME="Fl_Text_Display.previous_word">void previous_word(void);</A></H4>
<P>Moves the current insert position left one word.
<H4><A NAME="Fl_Text_Display.redisplay_range">void redisplay_range(int start, int end);</A></H4>
<P>Marks text from <CODE>start</CODE> to <CODE>end</CODE> as needing a redraw.
<H4><A NAME="Fl_Text_Display.scrollbar_align">void scrollbar_align(Fl_Align a);<BR>
Fl_Align scrollbar_align();</A></H4>
<P>Sets or gets where scrollbars are attached to the widget -
<CODE>FL_ALIGN_LEFT</CODE> and <CODE>FL_ALIGN_RIGHT</CODE> for
the vertical scrollbar and <CODE>FL_ALIGN_TOP</CODE> and
<CODE>FL_ALIGN_BOTTOM</CODE> for the horizontal scrollbar.
<H4><A NAME="Fl_Text_Display.scrollbar_width">void scrollbar_width(int w);<BR>
int scrollbar_width();</A></H4>
<P>Sets or gets the width/height of the scrollbars.
<H4><A NAME="Fl_Text_Display.scroll">void scroll(int topLineNum, int horizOffset);</A></H4>
<P>Scrolls the current buffer to start at the specified line and column.
<H4><A NAME="Fl_Text_Display.show_cursor">void show_cursor(int b = 1);</A></H4>
<P>Shows or hides the text cursor.
<H4><A NAME="Fl_Text_Display.show_insert_position">void show_insert_position();</A></H4>
<P>Scrolls the text buffer to show the current insert position.
<H4><A NAME="Fl_Text_Display.textcolor">void textcolor(unsigned n);<BR>
Fl_Color textcolor() const;</A></H4>
<P>Sets or gets the default color of text in the widget.
<H4><A NAME="Fl_Text_Display.textfont">void textfont(uchar s);<BR>
Fl_Font textfont() const;</A></H4>
<P>Sets or gets the default font used when drawing text in the widget.
<H4><A NAME="Fl_Text_Display.textsize">void textsize(uchar s);<BR>
uchar textsize() const;</A></H4>
<P>Sets or gets the default size of text in the widget.
<H4><A NAME="Fl_Text_Display.word_end">int word_end(int pos);</A></H4>
<P>Moves the insert position to the end of the current word.
<H4><A NAME="Fl_Text_Display.word_start">int word_start(int pos);</A></H4>
<P>Moves the insert position to the beginning of the current word.
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