libyui-ncurses  2.44.1
/usr/src/RPM/BUILD/libyui-ncurses-2.44.1/src/NCRadioButton.cc
00001 /*
00002   Copyright (C) 2000-2012 Novell, Inc
00003   This library is free software; you can redistribute it and/or modify
00004   it under the terms of the GNU Lesser General Public License as
00005   published by the Free Software Foundation; either version 2.1 of the
00006   License, or (at your option) version 3.0 of the License. This library
00007   is distributed in the hope that it will be useful, but WITHOUT ANY
00008   WARRANTY; without even the implied warranty of MERCHANTABILITY or
00009   FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
00010   License for more details. You should have received a copy of the GNU
00011   Lesser General Public License along with this library; if not, write
00012   to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
00013   Floor, Boston, MA 02110-1301 USA
00014 */
00015 
00016 
00017 /*-/
00018 
00019    File:       NCRadioButton.cc
00020 
00021    Author:     Michael Andres <ma@suse.de>
00022 
00023 /-*/
00024 
00025 #define  YUILogComponent "ncurses"
00026 #include <yui/YUILog.h>
00027 #include "NCurses.h"
00028 #include "NCRadioButton.h"
00029 #include "NCRadioButtonGroup.h"
00030 
00031 
00032 NCRadioButton::NCRadioButton( YWidget * parent,
00033                               const std::string & nlabel,
00034                               bool check )
00035         : YRadioButton( parent, nlabel )
00036         , NCWidget( parent )
00037         , checked( false )
00038 {
00039     yuiDebug() << std::endl;
00040     setLabel( nlabel );
00041     hotlabel = &label;
00042     setValue( check );
00043 }
00044 
00045 
00046 NCRadioButton::~NCRadioButton()
00047 {
00048     yuiDebug() << std::endl;
00049 }
00050 
00051 
00052 int NCRadioButton::preferredWidth()
00053 {
00054     return wGetDefsze().W;
00055 }
00056 
00057 
00058 int NCRadioButton::preferredHeight()
00059 {
00060     return wGetDefsze().H;
00061 }
00062 
00063 
00064 void NCRadioButton::setEnabled( bool do_bv )
00065 {
00066     NCWidget::setEnabled( do_bv );
00067     YRadioButton::setEnabled( do_bv );
00068 }
00069 
00070 
00071 void NCRadioButton::setSize( int newwidth, int newheight )
00072 {
00073     wRelocate( wpos( 0 ), wsze( newheight, newwidth ) );
00074 }
00075 
00076 
00077 void NCRadioButton::setLabel( const std::string & nlabel )
00078 {
00079     label  = NCstring( nlabel );
00080     label.stripHotkey();
00081     defsze = wsze( label.height(), label.width() + 4 );
00082     YRadioButton::setLabel( nlabel );
00083     Redraw();
00084 }
00085 
00086 
00087 void NCRadioButton::setValue( bool newval )
00088 {
00089     if ( newval != checked )
00090     {
00091         checked = newval;
00092 
00093         if ( checked && buttonGroup() )
00094         {
00095             buttonGroup()->uncheckOtherButtons( this );
00096         }
00097 
00098         Redraw();
00099     }
00100 }
00101 
00102 
00103 void NCRadioButton::wRedraw()
00104 {
00105     if ( !win )
00106         return;
00107 
00108     const NCstyle::StWidget & style( widgetStyle() );
00109 
00110     win->bkgdset( style.plain );
00111 
00112     win->printw( 0, 0, "( ) " );
00113 
00114     label.drawAt( *win, style, wpos( 0, 4 ) );
00115 
00116     win->bkgdset( style.data );
00117 
00118     win->printw( 0, 1, "%c", ( checked ? 'x' : ' ' ) );
00119 }
00120 
00121 
00122 NCursesEvent NCRadioButton::wHandleInput( wint_t key )
00123 {
00124     NCursesEvent ret;
00125     bool oldChecked = checked;
00126     NCRadioButtonGroup * group;
00127 
00128     switch ( key )
00129     {
00130         case KEY_HOTKEY:
00131         case KEY_SPACE:
00132         case KEY_RETURN:
00133             setValue( true );
00134 
00135             if ( notify() && oldChecked != checked )
00136                 ret = NCursesEvent::ValueChanged;
00137 
00138             break;
00139 
00140         case KEY_UP:
00141             group = dynamic_cast<NCRadioButtonGroup *>( buttonGroup() );
00142 
00143             if ( group )
00144                 group->focusPrevButton();
00145 
00146             break;
00147 
00148         case KEY_DOWN:
00149             group = dynamic_cast<NCRadioButtonGroup *>( buttonGroup() );
00150 
00151             if ( group )
00152                 group->focusNextButton();
00153 
00154             break;
00155     }
00156 
00157     return ret;
00158 }
00159 
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