svtools/source/control/autocmpledit.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <svtools/autocmpledit.hxx>
  11 #include <vcl/svapp.hxx>
  12
  13 AutocompleteEdit::AutocompleteEdit( vcl::Window* pParent )
  14     : Edit( pParent )
  15     , m_nCurrent( 0 )
  16 {
  17 /*    SignalConnectAutocomplete( nullptr,
  18             [this] ( Edit *const pEdit ) { this->AutoCompleteHandler( pEdit ); } ); */
  19     autocompleteSignal.connect( [this] ( Edit *const pEdit ) { this->AutoCompleteHandler( pEdit ); });
  20 }
  21
  22 void AutocompleteEdit::AddEntry( const OUString& rEntry )
  23 {
  24     m_aEntries.push_back( rEntry );
  25 }
  26
  27 void AutocompleteEdit::ClearEntries()
  28 {
  29     m_aEntries.clear();
  30     m_aMatching.clear();
  31 }
  32
  33 void AutocompleteEdit::AutoCompleteHandler( Edit* )
  34 {
  35     if( GetAutocompleteAction() != AUTOCOMPLETE_KEYINPUT )
  36         return;
  37
  38     if( Application::AnyInput( VclInputFlags::KEYBOARD ) )
  39         return;
  40
  41     OUString aCurText = GetText();
  42     Selection aSelection( GetSelection() );
  43
  44     if( aSelection.Max() != aCurText.getLength() )
  45         return;
  46
  47     sal_uInt16 nLen = ( sal_uInt16 )aSelection.Min();
  48     aCurText = aCurText.copy( 0, nLen );
  49     if( !aCurText.isEmpty() )
  50     {
  51         if( m_aEntries.size() )
  52         {
  53             if( Match( aCurText ) )
  54             {
  55                 m_nCurrent = 0;
  56                 SetText( m_aMatching[0] );
  57                 sal_uInt16 nNewLen = m_aMatching[0].getLength();
  58
  59                 Selection aSel( nLen, nNewLen );
  60                 SetSelection( aSel );
  61             }
  62         }
  63     }
  64 }
  65
  66 bool AutocompleteEdit::Match( const OUString& rText )
  67 {
  68     bool bRet = false;
  69
  70     m_aMatching.clear();
  71
  72     for( std::vector< OUString >::size_type i = 0; i < m_aEntries.size(); ++i )
  73     {
  74         if( m_aEntries[i].startsWithIgnoreAsciiCase( rText ) )
  75         {
  76             m_aMatching.push_back( m_aEntries[i] );
  77             bRet = true;
  78         }
  79     }
  80
  81     return bRet;
  82 }
  83
  84 bool AutocompleteEdit::PreNotify( NotifyEvent& rNEvt )
  85 {
  86     if( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT )
  87     {
  88         const KeyEvent& rEvent = *rNEvt.GetKeyEvent();
  89         const vcl::KeyCode& rKey = rEvent.GetKeyCode();
  90         vcl::KeyCode aCode( rKey.GetCode() );
  91
  92         if( ( aCode == KEY_UP || aCode == KEY_DOWN ) && !rKey.IsMod2() )
  93         {
  94             Selection aSelection( GetSelection() );
  95             sal_uInt16 nLen = ( sal_uInt16 )aSelection.Min();
  96
  97             if( m_aMatching.size() &&
  98                 ( ( aCode == KEY_DOWN && m_nCurrent + 1 < m_aMatching.size() )
  99                 || ( aCode == KEY_UP && m_nCurrent > 0 ) ) )
 100             {
 101                 SetText( m_aMatching[ aCode == KEY_DOWN ? ++m_nCurrent : --m_nCurrent ] );
 102                 SetSelection( Selection( nLen, GetText().getLength() ) );
 103                 return true;
 104             }
 105         }
 106     }
 107
 108     return Edit::PreNotify( rNEvt );
 109 }
 110
 111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */