libreoffice/sd/source/ui/toolpanel/TaskPaneTreeNode.cxx

/* -*- 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 "taskpane/TaskPaneTreeNode.hxx"

#include "taskpane/ControlContainer.hxx"
#include "taskpane/TitledControl.hxx"

#include <vector>
#include <algorithm>

namespace sd { namespace toolpanel {

TreeNode::TreeNode( TreeNode* pParent)
: mpControlContainer (new ControlContainer(this))
, mpParent (pParent)
, maStateChangeListeners()
{
}




TreeNode::~TreeNode (void)
{
}




void TreeNode::SetParentNode (TreeNode* pNewParent)
{
    mpParent = pNewParent;
    GetWindow()->SetParent (pNewParent->GetWindow());
}




TreeNode* TreeNode::GetParentNode (void)
{
    return mpParent;
}




::Window* TreeNode::GetWindow (void)
{
    return NULL;
}




const ::Window* TreeNode::GetConstWindow (void) const
{
    return const_cast<TreeNode*>(this)->GetWindow();
}




sal_Int32 TreeNode::GetMinimumWidth (void)
{
    sal_Int32 nTotalMinimumWidth = 0;
    unsigned int nCount = mpControlContainer->GetControlCount();
    for (unsigned int nIndex=0; nIndex<nCount; nIndex++)
    {
        TreeNode* pChild = mpControlContainer->GetControl (nIndex);
        sal_Int32 nMinimumWidth = pChild->GetMinimumWidth ();
        if (nMinimumWidth > nTotalMinimumWidth)
            nTotalMinimumWidth = nMinimumWidth;
    }

    return nTotalMinimumWidth;
}




bool TreeNode::IsResizable (void)
{
    return false;
}




void TreeNode::RequestResize (void)
{
    if (mpParent != NULL)
        mpParent->RequestResize();
}




ControlContainer& TreeNode::GetControlContainer (void)
{
    return *mpControlContainer.get();
}




bool TreeNode::Expand (bool bExpansionState)
{
    bool bExpansionStateChanged (false);

    if (IsExpandable() && IsExpanded()!=bExpansionState)
    {
        if (bExpansionState)
            GetWindow()->Show();
        else
            GetWindow()->Hide();
        bExpansionStateChanged = true;

        FireStateChangeEvent (EID_EXPANSION_STATE_CHANGED);
    }

    return bExpansionStateChanged;
}




bool TreeNode::IsExpanded (void) const
{
    if (GetConstWindow()!=NULL)
        return GetConstWindow()->IsVisible();
    else
        return false;
}




bool TreeNode::IsExpandable (void) const
{
    return GetConstWindow()!=NULL;
}




void TreeNode::Show (bool bExpansionState)
{
    if (GetWindow() != NULL)
    {
        bool bWasShowing (IsShowing());
        GetWindow()->Show (bExpansionState);
        if (bWasShowing != bExpansionState)
            FireStateChangeEvent (EID_SHOWING_STATE_CHANGED);
    }
}




bool TreeNode::IsShowing (void) const
{
    const ::Window* pWindow = const_cast<TreeNode*>(this)->GetWindow();
    if (pWindow != NULL)
        return pWindow->IsVisible();
    else
        return false;
}




TaskPaneShellManager* TreeNode::GetShellManager (void)
{
    if (mpParent != NULL)
        return mpParent->GetShellManager();
    else
        return NULL;
}




::com::sun::star::uno::Reference<
    ::com::sun::star::accessibility::XAccessible> TreeNode::GetAccessibleObject (void)
{
    ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible> xAccessible;
    ::Window* pWindow = GetWindow();
    if (pWindow != NULL)
    {
        xAccessible = pWindow->GetAccessible(sal_False);
        if ( ! xAccessible.is())
        {
            ::com::sun::star::uno::Reference<
                ::com::sun::star::accessibility::XAccessible> xParent;
            if (pWindow->GetAccessibleParentWindow()!=NULL)
                xParent = pWindow->GetAccessibleParentWindow()->GetAccessible();
            xAccessible = CreateAccessibleObject(xParent);
            pWindow->SetAccessible(xAccessible);
        }
    }
    return xAccessible;
}




::com::sun::star::uno::Reference<
    ::com::sun::star::accessibility::XAccessible> TreeNode::CreateAccessibleObject (
        const ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible>& )
{
    if (GetWindow() != NULL)
        return GetWindow()->CreateAccessible();
    else
        return NULL;
}




void TreeNode::AddStateChangeListener (const Link& rListener)
{
    if (::std::find (
        maStateChangeListeners.begin(),
        maStateChangeListeners.end(),
        rListener) == maStateChangeListeners.end())
    {
        maStateChangeListeners.push_back(rListener);
    }
}




void TreeNode::FireStateChangeEvent (
    TreeNodeStateChangeEventId eEventId,
    TreeNode* pChild) const
{
    TreeNodeStateChangeEvent aEvent (*this, eEventId, pChild);
    StateChangeListenerContainer aContainerCopy(maStateChangeListeners);
    StateChangeListenerContainer::iterator aLink (aContainerCopy.begin());
    StateChangeListenerContainer::iterator aEnd (aContainerCopy.end());
    while (aLink!=aEnd)
    {
        aLink->Call (&aEvent);
        ++aLink;
    }
}



TreeNodeStateChangeEvent::TreeNodeStateChangeEvent (
    const TreeNode& rNode,
    TreeNodeStateChangeEventId eEventId,
    TreeNode* pChild)
    : mrSource(rNode),
      meEventId(eEventId),
      mpChild(pChild)
{
}


} } // end of namespace ::sd::toolpanel

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