/* -*- 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 <sal/config.h>

#include <string_view>

#include <svx/sidebar/InspectorTextPanel.hxx>

#include <svl/languageoptions.hxx>
#include <com/sun/star/awt/FontSlant.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>

using namespace css;

namespace svx::sidebar
{
VclPtr<vcl::Window>
InspectorTextPanel::Create(vcl::Window* pParent,
                           const css::uno::Reference<css::frame::XFrame>& rxFrame)
{
    if (pParent == nullptr)
        throw lang::IllegalArgumentException("no parent Window given to InspectorTextPanel::Create",
                                             nullptr, 0);
    if (!rxFrame.is())
        throw lang::IllegalArgumentException("no XFrame given to InspectorTextPanel::Create",
                                             nullptr, 1);

    return VclPtr<InspectorTextPanel>::Create(pParent, rxFrame);
}

InspectorTextPanel::InspectorTextPanel(vcl::Window* pParent,
                                       const css::uno::Reference<css::frame::XFrame>& rxFrame)
    : PanelLayout(pParent, "InspectorTextPanel", "svx/ui/inspectortextpanel.ui", rxFrame)
    , mpListBoxStyles(m_xBuilder->weld_tree_view("listbox_fonts"))
{
    mpListBoxStyles->set_size_request(-1, -1);
    float fWidth = mpListBoxStyles->get_approximate_digit_width();
    std::vector<int> aWidths;
    aWidths.push_back(fWidth * 34);
    aWidths.push_back(fWidth * 34);
    mpListBoxStyles->set_column_fixed_widths(aWidths);
}

static bool GetPropertyValues(const OUString& rPropName, const uno::Any& rAny, OUString& rString)
{
    // Hide Asian and Complex properties
    if (!SvtLanguageOptions().IsCJKFontEnabled() && rPropName.indexOf("Asian") != -1)
        return false;
    if (!SvtLanguageOptions().IsCTLFontEnabled() && rPropName.indexOf("Complex") != -1)
        return false;

    if (bool bValue; rAny >>= bValue)
    {
        rString = OUString::boolean(bValue);
    }
    else if (OUString aValue; (rAny >>= aValue) && !(aValue.isEmpty()))
    {
        rString = aValue;
    }
    else if (awt::FontSlant eValue; rAny >>= eValue)
    {
        rString = (eValue == awt::FontSlant_ITALIC) ? OUStringLiteral(u"italic")
                                                    : OUStringLiteral(u"normal");
    }
    else if (tools::Long nValueLong; rAny >>= nValueLong)
    {
        if (rPropName.indexOf("Color") != -1)
            rString = "0x" + OUString::number(nValueLong, 16);
        else
            rString = OUString::number(nValueLong);
    }
    else if (double fValue; rAny >>= fValue)
    {
        if (rPropName.indexOf("Weight") != -1)
            rString
                = (fValue > 100) ? std::u16string_view(u"bold") : std::u16string_view(u"normal");
        else
            rString = OUString::number((round(fValue * 100)) / 100.00);
    }
    else if (short nValueShort; rAny >>= nValueShort)
    {
        rString = OUString::number(nValueShort);
    }
    else
        return false;

    return true;
}

static void FillBox_Impl(weld::TreeView& rListBoxStyles, const TreeNode& rCurrent,
                         const weld::TreeIter* pParent)
{
    std::unique_ptr<weld::TreeIter> pResult = rListBoxStyles.make_iterator();
    const OUString& rName = rCurrent.sNodeName;
    OUString sPairValue;

    if (!(rCurrent.NodeType != TreeNode::SimpleProperty
          || GetPropertyValues(rName, rCurrent.aValue, sPairValue)))
        return;

    rListBoxStyles.insert(pParent, -1, &rName, nullptr, nullptr, nullptr, false, pResult.get());
    rListBoxStyles.set_sensitive(*pResult, !rCurrent.isGrey, 0);
    rListBoxStyles.set_text_emphasis(*pResult, rCurrent.NodeType == TreeNode::Category, 0);

    if (rCurrent.NodeType == TreeNode::SimpleProperty)
    {
        rListBoxStyles.set_text(*pResult, sPairValue, 1);
        rListBoxStyles.set_sensitive(*pResult, !rCurrent.isGrey, 1);
        rListBoxStyles.set_text_emphasis(*pResult, false, 1);
    }

    for (const TreeNode& rChildNode : rCurrent.children)
        FillBox_Impl(rListBoxStyles, rChildNode, pResult.get());
}

void InspectorTextPanel::updateEntries(const std::vector<TreeNode>& rStore)
{
    mpListBoxStyles->freeze();
    mpListBoxStyles->clear();
    for (const TreeNode& rChildNode : rStore)
    {
        FillBox_Impl(*mpListBoxStyles, rChildNode, nullptr);
    }

    mpListBoxStyles->thaw();

    weld::TreeView* pTreeDiagram = mpListBoxStyles.get();
    pTreeDiagram->all_foreach([pTreeDiagram](weld::TreeIter& rEntry) {
        pTreeDiagram->expand_row(rEntry);
        return false;
    });

    std::unique_ptr<weld::TreeIter> pEntry = mpListBoxStyles->make_iterator();
    if (!mpListBoxStyles->get_iter_first(*pEntry))
        return;
    if (!mpListBoxStyles->iter_next(*pEntry))
        return;
    mpListBoxStyles->collapse_row(*pEntry); // Collapse "Default Paragraph Style"
}

InspectorTextPanel::~InspectorTextPanel() { disposeOnce(); }

void InspectorTextPanel::dispose()
{
    mpListBoxStyles.reset();

    PanelLayout::dispose();
}

} // end of namespace svx::sidebar

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