dbaccess/source/ui/control/marktree.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 #include "marktree.hxx"
  21 #include "dbu_control.hrc"
  22 #include <vcl/svapp.hxx>
  23 #include <vcl/settings.hxx>
  24
  25 namespace dbaui
  26 {
  27     using namespace ::com::sun::star::uno;
  28     using namespace ::com::sun::star::lang;
  29
  30
  31 OMarkableTreeListBox::OMarkableTreeListBox( vcl::Window* pParent, WinBits nWinStyle )
  32     : DBTreeListBox(pParent, nWinStyle)
  33 {
  34
  35     InitButtonData();
  36 }
  37
  38 OMarkableTreeListBox::~OMarkableTreeListBox()
  39 {
  40     disposeOnce();
  41 }
  42
  43 void OMarkableTreeListBox::dispose()
  44 {
  45     delete m_pCheckButton;
  46     DBTreeListBox::dispose();
  47 }
  48
  49 void OMarkableTreeListBox::Paint(vcl::RenderContext& rRenderContext, const Rectangle& _rRect)
  50 {
  51     if (!IsEnabled())
  52     {
  53         vcl::Font aOldFont = rRenderContext.GetFont();
  54         vcl::Font aNewFont(aOldFont);
  55
  56         StyleSettings aSystemStyle = Application::GetSettings().GetStyleSettings();
  57         aNewFont.SetColor(aSystemStyle.GetDisableColor());
  58
  59         rRenderContext.SetFont(aNewFont);
  60         DBTreeListBox::Paint(rRenderContext, _rRect);
  61         rRenderContext.SetFont(aOldFont);
  62     }
  63     else
  64         DBTreeListBox::Paint(rRenderContext, _rRect);
  65 }
  66
  67 void OMarkableTreeListBox::InitButtonData()
  68 {
  69     m_pCheckButton = new SvLBoxButtonData( this );
  70     EnableCheckButton( m_pCheckButton );
  71 }
  72
  73 void OMarkableTreeListBox::KeyInput( const KeyEvent& rKEvt )
  74 {
  75     // only if there are spaces
  76     if (rKEvt.GetKeyCode().GetCode() == KEY_SPACE && !rKEvt.GetKeyCode().IsShift() && !rKEvt.GetKeyCode().IsMod1())
  77     {
  78         SvTreeListEntry* pCurrentHandlerEntry = GetHdlEntry();
  79         if(pCurrentHandlerEntry)
  80         {
  81             SvButtonState eState = GetCheckButtonState( pCurrentHandlerEntry);
  82             if(eState == SV_BUTTON_CHECKED)
  83                 SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_UNCHECKED);
  84             else
  85                 SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_CHECKED);
  86
  87             CheckButtonHdl();
  88         }
  89         else
  90             DBTreeListBox::KeyInput(rKEvt);
  91     }
  92     else
  93         DBTreeListBox::KeyInput(rKEvt);
  94 }
  95
  96 SvButtonState OMarkableTreeListBox::implDetermineState(SvTreeListEntry* _pEntry)
  97 {
  98     SvButtonState eState = GetCheckButtonState(_pEntry);
  99     if (!GetModel()->HasChildren(_pEntry))
 100         // nothing to do in this bottom-up routine if there are no children ...
 101         return eState;
 102
 103     // loop through the children and check their states
 104     sal_uInt16 nCheckedChildren = 0;
 105     sal_uInt16 nChildrenOverall = 0;
 106
 107     SvTreeListEntry* pChildLoop = GetModel()->FirstChild(_pEntry);
 108     while (pChildLoop)
 109     {
 110         SvButtonState eChildState = implDetermineState(pChildLoop);
 111         if (SV_BUTTON_TRISTATE == eChildState)
 112             break;
 113
 114         if (SV_BUTTON_CHECKED == eChildState)
 115             ++nCheckedChildren;
 116         ++nChildrenOverall;
 117
 118         pChildLoop = SvTreeList::NextSibling(pChildLoop);
 119     }
 120
 121     if (pChildLoop)
 122     {
 123         // we did not finish the loop because at least one of the children is in tristate
 124         eState = SV_BUTTON_TRISTATE;
 125
 126         // but this means that we did not finish all the siblings of pChildLoop,
 127         // so their checking may be incorrect at the moment
 128         // -> correct this
 129         while (pChildLoop)
 130         {
 131             implDetermineState(pChildLoop);
 132             pChildLoop = SvTreeList::NextSibling(pChildLoop);
 133         }
 134     }
 135     else
 136         // none if the children are in tristate
 137         if (nCheckedChildren)
 138             // we have at least one child checked
 139             if (nCheckedChildren != nChildrenOverall)
 140                 // not all children are checked
 141                 eState = SV_BUTTON_TRISTATE;
 142             else
 143                 // all children are checked
 144                 eState = SV_BUTTON_CHECKED;
 145         else
 146             // no children are checked
 147             eState = SV_BUTTON_UNCHECKED;
 148
 149     // finally set the entry to the state we just determined
 150     SetCheckButtonState(_pEntry, eState);
 151
 152     return eState;
 153 }
 154
 155 void OMarkableTreeListBox::CheckButtons()
 156 {
 157     SvTreeListEntry* pEntry = GetModel()->First();
 158     while (pEntry)
 159     {
 160         implDetermineState(pEntry);
 161         pEntry = SvTreeList::NextSibling(pEntry);
 162     }
 163 }
 164
 165 void OMarkableTreeListBox::CheckButtonHdl()
 166 {
 167     checkedButton_noBroadcast(GetHdlEntry());
 168     if (m_aCheckButtonHandler.IsSet())
 169         m_aCheckButtonHandler.Call(this);
 170 }
 171
 172 void OMarkableTreeListBox::checkedButton_noBroadcast(SvTreeListEntry* _pEntry)
 173 {
 174     SvButtonState eState = GetCheckButtonState( _pEntry);
 175     if (GetModel()->HasChildren(_pEntry)) // if it has children, check those too
 176     {
 177         SvTreeListEntry* pChildEntry = GetModel()->Next(_pEntry);
 178         SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(_pEntry);
 179         while(pChildEntry && pChildEntry != pSiblingEntry)
 180         {
 181             SetCheckButtonState(pChildEntry, eState);
 182             pChildEntry = GetModel()->Next(pChildEntry);
 183         }
 184     }
 185
 186     SvTreeListEntry* pEntry = IsSelected(_pEntry) ? FirstSelected() : NULL;
 187     while(pEntry)
 188     {
 189         SetCheckButtonState(pEntry,eState);
 190         if(GetModel()->HasChildren(pEntry))   // if it has children, check those too
 191         {
 192             SvTreeListEntry* pChildEntry = GetModel()->Next(pEntry);
 193             SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(pEntry);
 194             while(pChildEntry && pChildEntry != pSiblingEntry)
 195             {
 196                 SetCheckButtonState(pChildEntry,eState);
 197                 pChildEntry = GetModel()->Next(pChildEntry);
 198             }
 199         }
 200         pEntry = NextSelected(pEntry);
 201     }
 202     CheckButtons();
 203 }
 204
 205 } // namespace
 206
 207 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */