mirror of https://github.com/fltk/fltk
278 lines
8.5 KiB
C++
278 lines
8.5 KiB
C++
//
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// "$Id$"
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//
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// Input header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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/* \file
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Fl_Input widget . */
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#ifndef Fl_Input_H
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#define Fl_Input_H
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#include "Fl_Input_.H"
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/**
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This is the FLTK text input widget. It displays a single line
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of text and lets the user edit it. Normally it is drawn with an
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inset box and a white background. The text may contain any
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characters, and will correctly display any UTF text, using
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^X notation for unprintable control characters. It assumes the
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font can draw any characters of the used scripts, which is true
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for standard fonts under MSWindows and Mac OS X.
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Characters can be input using the keyboard or the character palette/map.
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Character composition is done using dead keys and/or a compose
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key as defined by the operating system.
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<P>
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<TABLE WIDTH=90% BORDER=1 SUMMARY="Fl_Input keyboard and mouse bindings.">
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<CAPTION ALIGN=TOP>Fl_Input keyboard and mouse bindings.</CAPTION>
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<TR><TD NOWRAP="NOWRAP" WIDTH="1%">
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<B>Mouse button 1</B>
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</TD><TD>
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Moves the cursor to this point.
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Drag selects characters.
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Double click selects words.
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Triple click selects all line.
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Shift+click extends the selection.
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When you select text it is automatically copied to the selection buffer.
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</TD></TR><TR><TD NOWRAP="NOWRAP">
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<B>Mouse button 2</B>
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</TD><TD>
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Insert the selection buffer at the point clicked.
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You can also select a region and replace it with the selection buffer
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by selecting the region with mouse button 2.
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</TD></TR><TR><TD NOWRAP="NOWRAP">
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<B>Mouse button 3</B>
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</TD><TD>
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Currently acts like button 1.
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</TD></TR><TR><TD NOWRAP="NOWRAP">
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<B>Backspace</B>
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</TD><TD>
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Deletes one character to the left, or deletes the selected region.
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</TD></TR><TR><TD NOWRAP="NOWRAP">
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<B>Delete</B>
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</TD><TD>
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Deletes one character to the right, or deletes the selected region.
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Combine with Shift for equivalent of ^X (copy+cut).
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</TD></TR><TR><TD NOWRAP="NOWRAP">
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<B>Enter</b>
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</TD><TD>
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May cause the callback, see when().
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</TD></TR></TABLE>
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<P>
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<TABLE WIDTH="90%" BORDER="1" SUMMARY="Fl_Input platform specific keyboard bindings.">
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<CAPTION ALIGN=TOP>Fl_Input platform specific keyboard bindings.</CAPTION>
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<TR>
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<TD NOWRAP="NOWRAP" WIDTH="1%"><B> Windows/Linux </B></TD>
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<TD NOWRAP="NOWRAP" WIDTH="1%"><B> Mac </B></TD>
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<TD NOWRAP="NOWRAP" ><B> Function </B></TD>
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</TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^A </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-A </B></TD>
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<TD>
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<B>Selects all text in the widget.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^C </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-C </B></TD>
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<TD>
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<B>Copy the current selection to the clipboard.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^I </B></TD>
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<TD NOWRAP="NOWRAP"><B> ^I </B></TD>
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<TD>
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<B>Insert a tab.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^J </B></TD>
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<TD NOWRAP="NOWRAP"><B> ^J </B></TD>
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<TD>
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<B>Insert a Line Feed.</B> <BR>
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(Similar to literal 'Enter' character)
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^L </B></TD>
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<TD NOWRAP="NOWRAP"><B> ^L </B></TD>
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<TD>
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<B>Insert a Form Feed.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^M </B></TD>
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<TD NOWRAP="NOWRAP"><B> ^M </B></TD>
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<TD>
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<B>Insert a Carriage Return.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^V,<BR>Shift-Insert </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-V </B></TD>
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<TD>
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<B>Paste the clipboard.</B> <BR>
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(Macs keyboards don't have "Insert" keys,
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but if they did, Shift-Insert would work)
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^X,<BR>Shift-Delete </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-X,<BR>Shift-Delete </B></TD>
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<TD>
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<B>Cut.</B> <BR>
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Copy the selection to the clipboard and delete it.
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(If there's no selection, Shift-Delete acts like Delete)
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> ^Z </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-Z </B></TD>
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<TD>
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<B>Undo.</B> <BR>
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This is a single-level undo mechanism, but all adjacent
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deletions and insertions are concatenated into a single "undo".
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Often this will undo a lot more than you expected.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Shift-^Z </B></TD>
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<TD NOWRAP="NOWRAP"><B> Shift-Command-Z </B></TD>
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<TD>
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<B>Redo.</B> <BR>
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Currently same behavior as ^Z.
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Reserved for future multilevel undo/redo.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Arrow Keys </B></TD>
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<TD NOWRAP="NOWRAP"><B> Arrow Keys </B></TD>
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<TD>
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<B>Standard cursor movement.</B> <BR>
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Home </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-Up,<BR>Command-Left </B></TD>
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<TD>
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<B>Move to start of line.</B> <BR>
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> End </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-Down,<BR>Command-Right </B></TD>
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<TD>
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<B>Move to end of line.</B> <BR>
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B>Ctrl-Home</B></TD>
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<TD NOWRAP="NOWRAP"><B>Command-Up,<BR>Command-PgUp,<BR>Ctrl-Left</B></TD>
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<TD>
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<B>Move to top of document/field.</B> <BR>
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In single line input, moves to start of line.
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In multiline input, moves to start of top line.
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Ctrl-End </B></TD>
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<TD NOWRAP="NOWRAP"><B> Command-End,<BR>Command-PgDn,<BR>Ctrl-Right</B></TD>
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<TD>
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<B>Move to bottom of document/field.</B> <BR>
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In single line input, moves to end of line.
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In multiline input, moves to end of last line.
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Ctrl-Left </B></TD>
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<TD NOWRAP="NOWRAP"><B> Alt-Left </B></TD>
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<TD>
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<B>Word left.</B> <BR>
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Ctrl-Right </B></TD>
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<TD NOWRAP="NOWRAP"><B> Alt-Right </B></TD>
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<TD>
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<B>Word right.</B> <BR>
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Can be combined with Shift to extend selection.
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Ctrl-Backspace </B></TD>
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<TD NOWRAP="NOWRAP"><B> Alt-Backspace </B></TD>
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<TD>
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<B>Delete word left.</B>
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</TD></TR><TR>
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<TD NOWRAP="NOWRAP"><B> Ctrl-Delete </B></TD>
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<TD NOWRAP="NOWRAP"><B> Alt-Delete </B></TD>
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<TD>
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<B>Delete word right.</B>
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</TD></TR></TABLE>
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*/
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class FL_EXPORT Fl_Input : public Fl_Input_ {
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int handle_key();
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int shift_position(int p);
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int shift_up_down_position(int p);
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void handle_mouse(int keepmark=0);
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// Private keyboard functions
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int kf_lines_up(int repeat_num);
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int kf_lines_down(int repeat_num);
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int kf_page_up();
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int kf_page_down();
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int kf_insert_toggle();
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int kf_delete_word_right();
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int kf_delete_word_left();
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int kf_delete_sol();
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int kf_delete_eol();
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int kf_delete_char_right();
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int kf_delete_char_left();
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int kf_move_sol();
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int kf_move_eol();
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int kf_clear_eol();
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int kf_move_char_left();
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int kf_move_char_right();
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int kf_move_word_left();
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int kf_move_word_right();
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int kf_move_up_and_sol();
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int kf_move_down_and_eol();
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int kf_top();
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int kf_bottom();
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int kf_select_all();
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int kf_undo();
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int kf_redo();
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int kf_copy();
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int kf_paste();
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int kf_copy_cut();
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protected:
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void draw();
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public:
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int handle(int);
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Fl_Input(int,int,int,int,const char * = 0);
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};
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#endif
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//
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// End of "$Id$".
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//
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