26c355b6a0
converted html tags to doxygen rationalised doxygen comments renamed Fl_Slider::scrollvalue() and Fl_Scrollbar::value() parameters git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6683 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
//
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// "$Id$"
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//
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// Scroll bar header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2009 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_Scrollbar widget . */
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#ifndef Fl_Scrollbar_H
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#define Fl_Scrollbar_H
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#include "Fl_Slider.H"
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/**
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The Fl_Scrollbar widget displays a slider with arrow buttons at
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the ends of the scrollbar. Clicking on the arrows move up/left and
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down/right by linesize(). Scrollbars also accept FL_SHORTCUT events:
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the arrows move by linesize(), and vertical scrollbars take Page
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Up/Down (they move by the page size minus linesize()) and Home/End
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(they jump to the top or bottom).
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Scrollbars have step(1) preset (they always return integers). If
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desired you can set the step() to non-integer values. You will then
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have to use casts to get at the floating-point versions of value()
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from Fl_Slider.
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\image html scrollbar.gif
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\image latex scrollbar.eps "Fl_Scrollbar" width=4cm
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*/
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class FL_EXPORT Fl_Scrollbar : public Fl_Slider {
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int linesize_;
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int pushed_;
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static void timeout_cb(void*);
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void increment_cb();
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protected:
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void draw();
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public:
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Fl_Scrollbar(int X,int Y,int W,int H, const char *L = 0);
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~Fl_Scrollbar();
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int handle(int);
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/**
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Gets the integer value (position) of the slider in the scrollbar.
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You can get the floating point value with Fl_Slider::value().
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\see Fl_Scrollbar::value(int p)
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\see Fl_Scrollbar::value(int pos, int size, int first, int total)
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*/
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int value() const {return int(Fl_Slider::value());}
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/**
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Sets the value (position) of the slider in the scrollbar.
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\see Fl_Scrollbar::value()
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\see Fl_Scrollbar::value(int pos, int size, int first, int total)
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*/
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int value(int p) {return int(Fl_Slider::value((double)p));}
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/**
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Sets the position, size and range of the slider in the scrollbar.
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\param[in] pos position, first line displayed
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\param[in] size window size, number of lines displayed
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\param[in] first number of first line
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\param[in] total total number of lines
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You should call this every time your window changes size, your data
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changes size, or your scroll position changes (even if in response
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to a callback from this scrollbar).
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All necessary calls to redraw() are done.
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Calls Fl_Slider::scrollvalue(int pos, int size, int first, int total).
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*/
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int value(int pos, int size, int first, int total) {
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return scrollvalue(pos, size, first, total);
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}
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/**
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Get the size of step, in lines, that the arror keys move.
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*/
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int linesize() const {return linesize_;}
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/**
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This number controls how big the steps are that the arrow keys do.
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In addition page up/down move by the size last sent to value()
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minus one linesize(). The default is 16.
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*/
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void linesize(int i) {linesize_ = i;}
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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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