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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "marktree.hxx"
#include "dbu_control.hrc"
#include <vcl/svapp.hxx>
#include <vcl/settings.hxx>
namespace dbaui
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
OMarkableTreeListBox::OMarkableTreeListBox( vcl::Window* pParent, WinBits nWinStyle )
: DBTreeListBox(pParent, nWinStyle)
{
InitButtonData();
}
OMarkableTreeListBox::~OMarkableTreeListBox()
{
disposeOnce();
}
void OMarkableTreeListBox::dispose()
{
delete m_pCheckButton;
DBTreeListBox::dispose();
}
void OMarkableTreeListBox::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& _rRect)
{
if (!IsEnabled())
{
vcl::Font aOldFont = rRenderContext.GetFont();
vcl::Font aNewFont(aOldFont);
StyleSettings aSystemStyle = Application::GetSettings().GetStyleSettings();
aNewFont.SetColor(aSystemStyle.GetDisableColor());
rRenderContext.SetFont(aNewFont);
DBTreeListBox::Paint(rRenderContext, _rRect);
rRenderContext.SetFont(aOldFont);
}
else
DBTreeListBox::Paint(rRenderContext, _rRect);
}
void OMarkableTreeListBox::InitButtonData()
{
m_pCheckButton = new SvLBoxButtonData( this );
EnableCheckButton( m_pCheckButton );
}
void OMarkableTreeListBox::KeyInput( const KeyEvent& rKEvt )
{
// only if there are spaces
if (rKEvt.GetKeyCode().GetCode() == KEY_SPACE && !rKEvt.GetKeyCode().IsShift() && !rKEvt.GetKeyCode().IsMod1())
{
SvTreeListEntry* pCurrentHandlerEntry = GetHdlEntry();
if(pCurrentHandlerEntry)
{
SvButtonState eState = GetCheckButtonState( pCurrentHandlerEntry);
if(eState == SvButtonState::Checked)
SetCheckButtonState( pCurrentHandlerEntry, SvButtonState::Unchecked);
else
SetCheckButtonState( pCurrentHandlerEntry, SvButtonState::Checked);
CheckButtonHdl();
}
else
DBTreeListBox::KeyInput(rKEvt);
}
else
DBTreeListBox::KeyInput(rKEvt);
}
SvButtonState OMarkableTreeListBox::implDetermineState(SvTreeListEntry* _pEntry)
{
SvButtonState eState = GetCheckButtonState(_pEntry);
if (!GetModel()->HasChildren(_pEntry))
// nothing to do in this bottom-up routine if there are no children ...
return eState;
// loop through the children and check their states
sal_uInt16 nCheckedChildren = 0;
sal_uInt16 nChildrenOverall = 0;
SvTreeListEntry* pChildLoop = GetModel()->FirstChild(_pEntry);
while (pChildLoop)
{
SvButtonState eChildState = implDetermineState(pChildLoop);
if (SvButtonState::Tristate == eChildState)
break;
if (SvButtonState::Checked == eChildState)
++nCheckedChildren;
++nChildrenOverall;
pChildLoop = SvTreeList::NextSibling(pChildLoop);
}
if (pChildLoop)
{
// we did not finish the loop because at least one of the children is in tristate
eState = SvButtonState::Tristate;
// but this means that we did not finish all the siblings of pChildLoop,
// so their checking may be incorrect at the moment
// -> correct this
while (pChildLoop)
{
implDetermineState(pChildLoop);
pChildLoop = SvTreeList::NextSibling(pChildLoop);
}
}
else
// none if the children are in tristate
if (nCheckedChildren)
// we have at least one child checked
if (nCheckedChildren != nChildrenOverall)
// not all children are checked
eState = SvButtonState::Tristate;
else
// all children are checked
eState = SvButtonState::Checked;
else
// no children are checked
eState = SvButtonState::Unchecked;
// finally set the entry to the state we just determined
SetCheckButtonState(_pEntry, eState);
return eState;
}
void OMarkableTreeListBox::CheckButtons()
{
SvTreeListEntry* pEntry = GetModel()->First();
while (pEntry)
{
implDetermineState(pEntry);
pEntry = SvTreeList::NextSibling(pEntry);
}
}
void OMarkableTreeListBox::CheckButtonHdl()
{
checkedButton_noBroadcast(GetHdlEntry());
m_aCheckButtonHandler.Call(this);
}
void OMarkableTreeListBox::checkedButton_noBroadcast(SvTreeListEntry* _pEntry)
{
SvButtonState eState = GetCheckButtonState( _pEntry);
if (GetModel()->HasChildren(_pEntry)) // if it has children, check those too
{
SvTreeListEntry* pChildEntry = GetModel()->Next(_pEntry);
SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(_pEntry);
while(pChildEntry && pChildEntry != pSiblingEntry)
{
SetCheckButtonState(pChildEntry, eState);
pChildEntry = GetModel()->Next(pChildEntry);
}
}
SvTreeListEntry* pEntry = IsSelected(_pEntry) ? FirstSelected() : nullptr;
while(pEntry)
{
SetCheckButtonState(pEntry,eState);
if(GetModel()->HasChildren(pEntry)) // if it has children, check those too
{
SvTreeListEntry* pChildEntry = GetModel()->Next(pEntry);
SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(pEntry);
while(pChildEntry && pChildEntry != pSiblingEntry)
{
SetCheckButtonState(pChildEntry,eState);
pChildEntry = GetModel()->Next(pChildEntry);
}
}
pEntry = NextSelected(pEntry);
}
CheckButtons();
}
} // namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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