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Diffstat (limited to 'dbaccess/source/ui/control/marktree.cxx')
| -rw-r--r-- | dbaccess/source/ui/control/marktree.cxx | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/dbaccess/source/ui/control/marktree.cxx b/dbaccess/source/ui/control/marktree.cxx new file mode 100644 index 000000000..9bf664fa6 --- /dev/null +++ b/dbaccess/source/ui/control/marktree.cxx @@ -0,0 +1,206 @@ +/* -*- 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 <vcl/treelistentry.hxx> +#include <vcl/svapp.hxx> +#include <vcl/settings.hxx> +#include <vcl/event.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() +{ + m_pCheckButton.reset(); + 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.reset( new SvLBoxButtonData( this ) ); + EnableCheckButton( m_pCheckButton.get() ); +} + +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 = pChildLoop->NextSibling(); + } + + 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 = pChildLoop->NextSibling(); + } + } + 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 = pEntry->NextSibling(); + } +} + +void OMarkableTreeListBox::CheckButtonHdl() +{ + checkedButton_noBroadcast(GetHdlEntry()); +} + +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 = _pEntry->NextSibling(); + 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 = pEntry->NextSibling(); + while(pChildEntry && pChildEntry != pSiblingEntry) + { + SetCheckButtonState(pChildEntry,eState); + pChildEntry = GetModel()->Next(pChildEntry); + } + } + pEntry = NextSelected(pEntry); + } + CheckButtons(); +} + +} // namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |