svtools/source/toolpanel/toolpanelcollection.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  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "toolpanelcollection.hxx"
  22 #include "paneldecklisteners.hxx"
  23
  24 #include <tools/diagnose_ex.h>
  25
  26 #include <vector>
  27
  28
  29 namespace svt
  30 {
  31
  32
  33
  34     //= ToolPanelCollection_Data
  35
  36     struct ToolPanelCollection_Data
  37     {
  38         ::std::vector< PToolPanel >                 aPanels;
  39         ::boost::optional< size_t >                 aActivePanel;
  40         PanelDeckListeners                          aListeners;
  41     };
  42
  43
  44     //= ToolPanelCollection
  45
  46
  47     ToolPanelCollection::ToolPanelCollection()
  48         :m_pData( new ToolPanelCollection_Data )
  49     {
  50     }
  51
  52
  53     ToolPanelCollection::~ToolPanelCollection()
  54     {
  55         m_pData->aListeners.Dying();
  56     }
  57
  58
  59     size_t ToolPanelCollection::GetPanelCount() const
  60     {
  61         return m_pData->aPanels.size();
  62     }
  63
  64
  65     ::boost::optional< size_t > ToolPanelCollection::GetActivePanel() const
  66     {
  67         return m_pData->aActivePanel;
  68     }
  69
  70
  71     void ToolPanelCollection::ActivatePanel( const ::boost::optional< size_t >& i_rPanel )
  72     {
  73         if ( !!i_rPanel )
  74         {
  75             OSL_ENSURE( *i_rPanel < GetPanelCount(), "ToolPanelCollection::ActivatePanel: illegal panel no.!" );
  76             if ( *i_rPanel >= GetPanelCount() )
  77                 return;
  78         }
  79
  80         if ( m_pData->aActivePanel == i_rPanel )
  81             return;
  82
  83         const ::boost::optional< size_t > aOldPanel( m_pData->aActivePanel );
  84         m_pData->aActivePanel = i_rPanel;
  85
  86         // notify listeners
  87         m_pData->aListeners.ActivePanelChanged( aOldPanel, m_pData->aActivePanel );
  88     }
  89
  90
  91     PToolPanel ToolPanelCollection::GetPanel( const size_t i_nPos ) const
  92     {
  93         OSL_ENSURE( i_nPos < m_pData->aPanels.size(), "ToolPanelCollection::GetPanel: illegal position!" );
  94         if ( i_nPos >= m_pData->aPanels.size() )
  95             return PToolPanel();
  96         return m_pData->aPanels[ i_nPos ];
  97     }
  98
  99
 100     size_t ToolPanelCollection::InsertPanel( const PToolPanel& i_pPanel, const size_t i_nPosition )
 101     {
 102         OSL_ENSURE( i_pPanel.get(), "ToolPanelCollection::InsertPanel: illegal panel!" );
 103         if ( !i_pPanel.get() )
 104             return 0;
 105
 106         // insert
 107         const size_t position = i_nPosition < m_pData->aPanels.size() ? i_nPosition : m_pData->aPanels.size();
 108         m_pData->aPanels.insert( m_pData->aPanels.begin() + position, i_pPanel );
 109
 110         // update active panel
 111         if ( !!m_pData->aActivePanel )
 112         {
 113             if ( i_nPosition <= *m_pData->aActivePanel )
 114                 ++*m_pData->aActivePanel;
 115         }
 116
 117         // notifications
 118         m_pData->aListeners.PanelInserted( i_pPanel, i_nPosition );
 119
 120         return position;
 121     }
 122
 123
 124     PToolPanel ToolPanelCollection::RemovePanel( const size_t i_nPosition )
 125     {
 126         OSL_ENSURE( i_nPosition < m_pData->aPanels.size(), "ToolPanelCollection::RemovePanel: illegal position!" );
 127         if ( i_nPosition >= m_pData->aPanels.size() )
 128             return NULL;
 129
 130         // if the active panel is going to be removed, activate another one (before the actual removal)
 131         if ( m_pData->aActivePanel == i_nPosition )
 132         {
 133             const ::boost::optional< size_t > aOldActive( m_pData->aActivePanel );
 134
 135             if ( i_nPosition + 1 < GetPanelCount() )
 136             {
 137                 ++*m_pData->aActivePanel;
 138             }
 139             else if ( i_nPosition > 0 )
 140             {
 141                 --*m_pData->aActivePanel;
 142             }
 143             else
 144             {
 145                 m_pData->aActivePanel.reset();
 146             }
 147
 148             m_pData->aListeners.ActivePanelChanged( aOldActive, m_pData->aActivePanel );
 149         }
 150
 151         // remember the removed panel for the aller
 152         PToolPanel pRemovedPanel( m_pData->aPanels[ i_nPosition ] );
 153
 154         // actually remove
 155         m_pData->aPanels.erase( m_pData->aPanels.begin() + i_nPosition );
 156
 157         if ( !!m_pData->aActivePanel )
 158         {
 159             if ( i_nPosition < *m_pData->aActivePanel )
 160             {
 161                 --*m_pData->aActivePanel;
 162             }
 163         }
 164
 165         // notify removed panel
 166         m_pData->aListeners.PanelRemoved( i_nPosition );
 167
 168         return pRemovedPanel;
 169     }
 170
 171
 172     void ToolPanelCollection::AddListener( IToolPanelDeckListener& i_rListener )
 173     {
 174         m_pData->aListeners.AddListener( i_rListener );
 175     }
 176
 177
 178     void ToolPanelCollection::RemoveListener( IToolPanelDeckListener& i_rListener )
 179     {
 180         m_pData->aListeners.RemoveListener( i_rListener );
 181     }
 182
 183
 184 } // namespace svt
 185
 186
 187 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */