OrcaSlicer-KX/src/slic3r/GUI/ObjectDataViewModel.cpp

///|/ Copyright (c) Prusa Research 2018 - 2023 Oleksandra Iushchenko @YuSanka, Lukáš Matěna @lukasmatena, Vojtěch Bubník @bubnikv, Enrico Turri @enricoturri1966, Lukáš Hejl @hejllukas, David Kocík @kocikdav, Tomáš Mészáros @tamasmeszaros, Vojtěch Král @vojtechkral
///|/ Copyright (c) 2020 Gianni Ceccarelli @dakkar
///|/
///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
///|/
#include "ObjectDataViewModel.hpp"
#include "slic3r/GUI/wxExtensions.hpp"
#include "wxExtensions.hpp"
#include "BitmapCache.hpp"
#include "GUI_App.hpp"
#include "GUI_Factories.hpp"
#include "GUI.hpp"
#include "I18N.hpp"
#include "PartPlate.hpp"

#include "libslic3r/Model.hpp"

#include <wx/bmpcbox.h>
#include <wx/dc.h>


namespace Slic3r {

namespace GUI {

wxDEFINE_EVENT(wxCUSTOMEVT_LAST_VOLUME_IS_DELETED, wxCommandEvent);

BitmapCache* m_bitmap_cache = nullptr;


// *****************************************************************************
// ----------------------------------------------------------------------------
// ObjectDataViewModelNode
// ----------------------------------------------------------------------------

void ObjectDataViewModelNode::init_container()
{
#ifdef __WXGTK__
    // it's necessary on GTK because of control have to know if this item will be container
    // in another case you couldn't to add subitem for this item
    // it will be produce "segmentation fault"
    m_container = true;
#endif  //__WXGTK__
}

static constexpr char LayerRootIcon[]   = "blank";
static constexpr char LayerIcon[]       = "blank";
static constexpr char WarningIcon[]     = "obj_warning";
static constexpr char WarningManifoldIcon[] = "obj_warning";
static constexpr char LockIcon[]            = "cut_";

ObjectDataViewModelNode::ObjectDataViewModelNode(PartPlate* part_plate, wxString name) :
    m_parent(nullptr),
    m_name(name),
    m_type(itPlate),
    m_part_plate(part_plate),
    m_extruder(wxEmptyString),
    m_container(true)
{
    m_plate_idx = part_plate ? part_plate->get_index() : -1;
    set_action_icon(false);
    // BBS
    set_color_icon(false);
    set_support_icon(false);
    init_container();
}

struct InfoItemAtributes {
    std::string name;
    std::string bmp_name;
};

const std::map<InfoItemType, InfoItemAtributes> INFO_ITEMS{
//           info_item Type                         info_item Name              info_item BitmapName
            { InfoItemType::CustomSupports,      {L("Support painting"),       "toolbar_support" },     },
            //{ InfoItemType::CustomSeam,          {L("Paint-on seam"),           "seam_" },             },
            { InfoItemType::MmuSegmentation,     {L("Color painting"),          "mmu_segmentation"},  },
            //{ InfoItemType::Sinking,             {L("Sinking"),                 "objlist_sinking"}, },
            { InfoItemType::CutConnectors,       {L("Cut connectors"),          "cut_connectors" },    },
};

ObjectDataViewModelNode::ObjectDataViewModelNode(ObjectDataViewModelNode*   parent,
                                                 const wxString&            sub_obj_name,
                                                 Slic3r::ModelVolumeType    type,
                                                 const bool                 is_text_volume,
                                                 const bool                 is_svg_volume,
                                                 const wxString&            extruder,
                                                 const int                  idx/* = -1*/) :
    m_parent(parent),
    m_name(sub_obj_name),
    m_type(itVolume),
    m_volume_type(type),
    m_is_text_volume(is_text_volume),
    m_is_svg_volume(is_svg_volume),
    m_idx(idx),
    m_extruder(type == Slic3r::ModelVolumeType::MODEL_PART || type == Slic3r::ModelVolumeType::PARAMETER_MODIFIER ? extruder : "")
{
    set_icons();
    init_container();
}

ObjectDataViewModelNode::ObjectDataViewModelNode(ObjectDataViewModelNode* parent, const InfoItemType info_type) :
    m_parent(parent),
    m_type(itInfo),
    m_info_item_type(info_type),
    m_extruder(wxEmptyString),
    m_name(_(INFO_ITEMS.at(info_type).name))
{
}


ObjectDataViewModelNode::ObjectDataViewModelNode(ObjectDataViewModelNode* parent, const ItemType type, const int plate_idx) :
    m_parent(parent),
    m_type(type),
    m_extruder(wxEmptyString),
    m_plate_idx(plate_idx)
{
    if (type == itSettings) {
        m_name = "Settings to modified";
    }
    else if (type == itInstanceRoot) {
        m_name = _(_devL("Instances"));
        m_extruder = parent->m_extruder;
    }
    else if (type == itInstance)
    {
        m_idx = parent->GetChildCount();
        m_name = wxString::Format(_(_devL("Instance %d")), m_idx + 1);
        m_extruder = parent->GetParent()->m_extruder;
        set_icons();
    }
    else if (type == itLayerRoot)
    {
        //BBS do not support layer range edit
        m_bmp = create_scaled_bitmap(LayerRootIcon);
        m_name = _(L("Layers"));
    }
    else if (type == itInfo)
        assert(false);

    if (type & (itInstanceRoot | itLayerRoot))
        init_container();
}

ObjectDataViewModelNode::ObjectDataViewModelNode(ObjectDataViewModelNode* parent,
                                                 const t_layer_height_range& layer_range,
                                                 const int idx /*= -1 */,
                                                 const wxString& extruder) :
    m_parent(parent),
    m_type(itLayer),
    m_idx(idx),
    m_layer_range(layer_range),
    m_extruder(extruder)
{
    const int children_cnt = parent->GetChildCount();
    if (idx < 0)
        m_idx = children_cnt;
    else
    {
        // update indexes for another Laeyr Nodes
        for (int i = m_idx; i < children_cnt; i++)
            parent->GetNthChild(i)->SetIdx(i + 1);
    }
    const std::string label_range = (boost::format(" %.2f-%.2f ") % layer_range.first % layer_range.second).str();
    m_name = _(L("Range")) + label_range + "(" + _(L("mm")) + ")";
    m_bmp = create_scaled_bitmap(LayerIcon);

    set_icons();
    init_container();
}

#ifndef NDEBUG
bool ObjectDataViewModelNode::valid()
{
	// Verify that the object was not deleted yet.
	assert(m_idx >= -1);
	return m_idx >= -1;
}

#endif /* NDEBUG */

void ObjectDataViewModelNode::sys_color_changed()
{
    m_printable_icon = m_printable == piUndef ? m_empty_bmp : create_scaled_bitmap(m_printable == piPrintable ? "check_on" : "check_off_focused");
}

void ObjectDataViewModelNode::set_icons()
{
    set_action_icon(false);
    // BBS
    set_color_icon(false);
    set_support_icon(false);

    // set extruder bitmap
    set_extruder_icon();
}

void ObjectDataViewModelNode::set_extruder_icon()
{
    if (m_type & (itInstance | itInstanceRoot | itLayerRoot) ||
        ((m_type & itVolume) && m_volume_type != Slic3r::ModelVolumeType::MODEL_PART && m_volume_type != Slic3r::ModelVolumeType::PARAMETER_MODIFIER))
        return; // don't set colored bitmap for Instance

    UpdateExtruderAndColorIcon();
}

void ObjectDataViewModelNode::set_printable_icon(PrintIndicator printable)
{
    if (m_printable == printable)
        return;
    m_printable = printable;
    m_printable_icon = m_printable == piUndef ? m_empty_bmp :
                       create_scaled_bitmap(m_printable == piPrintable ? "check_on" : "check_off_focused");
}

void ObjectDataViewModelNode::set_action_icon(bool enable)
{
    if (m_action_enable == enable)
        return;
    m_action_enable = enable;
    auto undo = enable ? "lock_normal" : "dot";
    m_action_icon_name = m_type & itPlate ? undo :
                         m_type & itObject ? undo :
                         m_type & (itVolume | itLayer) ? undo : /*m_type & itInstance*/ "set_separate_obj";
    m_action_icon = create_scaled_bitmap(m_action_icon_name);    // FIXME: pass window ptr
}

// BBS
void ObjectDataViewModelNode::set_color_icon(bool enable)
{
    if (m_color_enable == enable)
        return;
    m_color_enable = enable;
    if ((m_type & itObject) && enable)
        m_color_icon = create_scaled_bitmap("mmu_segmentation");
    else
        m_color_icon = create_scaled_bitmap("dot");
}

void ObjectDataViewModelNode::set_support_icon(bool enable)
{
    if (m_support_enable == enable)
        return;
    m_support_enable = enable;
    if ((m_type & itObject) && enable)
        m_support_icon = create_scaled_bitmap("toolbar_support");
    else
        m_support_icon = create_scaled_bitmap("dot");
}

void ObjectDataViewModelNode::set_sinking_icon(bool enable)
{
    if (m_sink_enable == enable)
        return;
    m_sink_enable = enable;
    if ((m_type & itObject) && enable)
        m_sinking_icon = create_scaled_bitmap("objlist_sinking");
    else
        m_sinking_icon = create_scaled_bitmap("dot");
}

void ObjectDataViewModelNode::set_warning_icon(const std::string& warning_icon_name)
{
    m_warning_icon_name = warning_icon_name;
    if (warning_icon_name.empty())
        m_bmp = m_empty_bmp;
}

void ObjectDataViewModelNode::update_settings_digest_bitmaps()
{
    m_bmp = m_empty_bmp;

    std::string scaled_bitmap_name = m_name.ToUTF8().data();
    scaled_bitmap_name += "-em" + std::to_string(wxGetApp().em_unit()) + (wxGetApp().dark_mode() ? "-dm" : "");

    wxBitmap *bmp = m_bitmap_cache->find(scaled_bitmap_name);
    if (bmp == nullptr) {
        std::vector<wxBitmap> bmps;
        for (auto& category : m_opt_categories)
            bmps.emplace_back(SettingsFactory::get_category_bitmap(category, false));
        bmp = m_bitmap_cache->insert(scaled_bitmap_name, bmps);
    }

    m_bmp = *bmp;
}

bool ObjectDataViewModelNode::update_settings_digest(const std::vector<std::string>& categories)
{
    if (m_type != itSettings || m_opt_categories == categories)
        return false;

    m_opt_categories = categories;
    m_name = wxEmptyString;

    for (auto& cat : m_opt_categories)
        m_name += _(cat) + "; ";
    if (!m_name.IsEmpty())
        m_name.erase(m_name.Length()-2, 2); // Delete last "; "

    update_settings_digest_bitmaps();

    return true;
}

void ObjectDataViewModelNode::msw_rescale()
{
    if (!m_action_icon_name.empty())
        m_action_icon = create_scaled_bitmap(m_action_icon_name);

    if (m_printable != piUndef)
        m_printable_icon = create_scaled_bitmap(m_printable == piPrintable ? "obj_printable" : "obj_unprintable");

    if (!m_opt_categories.empty())
        update_settings_digest_bitmaps();

    set_extruder_icon();
}

bool ObjectDataViewModelNode::SetValue(const wxVariant& variant, unsigned col)
{
    switch (col)
    {
    case colPrint:
        m_printable_icon << variant;
        return true;
    case colName: {
        DataViewBitmapText data;
        data << variant;
        m_bmp = data.GetBitmap();
        m_name = data.GetText();
        return true; }
    case colFilament: {
        DataViewBitmapText data;
        data << variant;
        m_extruder_bmp = data.GetBitmap();
        m_extruder = data.GetText() == "0" ? _(L("default")) : data.GetText();
        return true; }
    // BBS
    case colSupportPaint:
        m_support_icon << variant;
        break;
    case colSinking:
        m_sinking_icon << variant;
        break;
    case colColorPaint:
        m_color_icon << variant;
        break;
    case colEditing:
        m_action_icon << variant;
        return true;
    default:
        printf("MyObjectTreeModel::SetValue: wrong column");
    }
    return false;
}

void ObjectDataViewModelNode::SetName(const wxString &tempName) 
{ 
    if (m_name != tempName) {
        m_name = tempName; 
    }
}

void ObjectDataViewModelNode::SetIdx(const int &idx)
{
    m_idx = idx;
    // update name if this node is instance
    if (m_type == itInstance) {
        if (m_plate_idx > 0) {
            m_name = wxString::Format(_(_devL("[P%d]Instance %d")), m_plate_idx, m_idx + 1);
        }
        else {
            m_name = wxString::Format(_(_devL("Instance %d")), m_idx + 1);
        }
    }
}

void ObjectDataViewModelNode::SetPlateIdx(const int& idx)
{
    m_plate_idx = idx;
}

void ObjectDataViewModelNode::UpdateExtruderAndColorIcon(wxString extruder /*= ""*/)
{
    if (m_type == itVolume && m_volume_type != ModelVolumeType::MODEL_PART && m_volume_type != ModelVolumeType::PARAMETER_MODIFIER)
        return;
    if (extruder.empty())
        extruder = m_extruder;
    else
        m_extruder = extruder; // update extruder

    // update color icon
    size_t extruder_idx = atoi(extruder.c_str());
    if (extruder_idx == 0) {
        if (m_type & itObject);
        else if (m_type & itVolume && m_volume_type == ModelVolumeType::MODEL_PART) {
            extruder_idx = atoi(m_parent->GetExtruder().c_str());
        }
        // BBS
        else if (m_type & itVolume && m_volume_type == ModelVolumeType::PARAMETER_MODIFIER) {
            m_extruder_bmp = *get_default_extruder_color_icon();
            return;
        }
        else if (m_type & itLayer) {
            m_extruder_bmp = *get_default_extruder_color_icon();
            return;
        }
        else {
            m_extruder_bmp = wxNullBitmap;
            return;
        }
    }

    if (extruder_idx > 0) --extruder_idx;
    // Create the bitmap with color bars.
    std::vector<wxBitmap*> bmps = get_extruder_color_icons(false);// use wide icons
    if (bmps.empty()) {
        m_extruder_bmp = wxNullBitmap;
        return;
    }

    m_extruder_bmp = *bmps[extruder_idx >= bmps.size() ? 0 : extruder_idx];
}

// *****************************************************************************
// ----------------------------------------------------------------------------
// ObjectDataViewModel
// ----------------------------------------------------------------------------

static int get_root_idx(ObjectDataViewModelNode *parent_node, const ItemType root_type)
{
    // because of istance_root and layers_root are at the end of the list, so
    // start locking from the end
    for (int root_idx = parent_node->GetChildCount() - 1; root_idx >= 0; root_idx--)
    {
        // if there is SettingsItem or VolumeItem, then RootItems don't exist in current ObjectItem
        if (parent_node->GetNthChild(root_idx)->GetType() & (itSettings | itVolume))
            break;
        if (parent_node->GetNthChild(root_idx)->GetType() & root_type)
            return root_idx;
    }

    return -1;
}

ObjectDataViewModel::ObjectDataViewModel()
{
    m_bitmap_cache = new Slic3r::GUI::BitmapCache;

    m_volume_bmps = MenuFactory::get_volume_bitmaps();
    m_text_volume_bmps = MenuFactory::get_text_volume_bitmaps();
    m_svg_volume_bmps = MenuFactory::get_svg_volume_bitmaps();
    m_warning_bmp = create_scaled_bitmap(WarningIcon);
    m_warning_manifold_bmp = create_scaled_bitmap(WarningManifoldIcon);
    m_lock_bmp = create_scaled_bitmap(LockIcon);

    for (auto item : INFO_ITEMS)
        m_info_bmps[item.first] = create_scaled_bitmap(item.second.bmp_name);


    m_plate_outside = nullptr;
}

ObjectDataViewModel::~ObjectDataViewModel()
{
    for (auto object : m_objects)
			delete object;
    delete m_bitmap_cache;
    m_bitmap_cache = nullptr;
}

void ObjectDataViewModel::Init()
{
    PartPlateList& list = wxGetApp().plater()->get_partplate_list();

    if (list.get_plate_count() > 0)
        AddPlate(list.get_plate(0));

    AddOutsidePlate();
}

wxDataViewItem ObjectDataViewModel::AddPlate(PartPlate* part_plate, wxString name, bool refresh)
{
    int  plate_idx  = part_plate ? part_plate->get_index() : -1;
    wxString plate_name = name;
    if (name.empty()) {
        plate_name = _L("Plate");
        plate_name += wxString::Format(" %d", plate_idx + 1);
        if (!part_plate->get_plate_name().empty()) {
            plate_name += wxString(" (", wxConvUTF8) + from_u8(part_plate->get_plate_name()) + wxString(")", wxConvUTF8);
        }
    }
    auto plate_node = new ObjectDataViewModelNode(part_plate, plate_name);

    bool is_added = false;
    if (plate_idx >= 0) {
        for (auto iter = m_plates.begin(); iter != m_plates.end(); iter++) {
            if (plate_idx < (*iter)->m_plate_idx || (*iter)->m_plate_idx < 0) {
                m_plates.insert(iter, plate_node);
                is_added = true;
                break;
            }
        }
    }

    if (!is_added) {
        m_plates.push_back(plate_node);
    }
    
    wxDataViewItem plate_item(plate_node);
    if (refresh) {
        ItemAdded(wxDataViewItem(nullptr), plate_item);
    }

    for (int obj_idx = 0; obj_idx < m_objects.size(); obj_idx++) {
        auto obj_node = m_objects[obj_idx];
        if (part_plate && part_plate->contain_instance_totally(obj_idx, 0)) {
            ReparentObject(plate_node, obj_node);
        }
    }

    return plate_item;
}

wxDataViewItem ObjectDataViewModel::AddOutsidePlate(bool refresh)
{
    wxDataViewItem plate_item = AddPlate(nullptr, _L("Outside"));
    m_plate_outside = (ObjectDataViewModelNode*)plate_item.GetID();

    return plate_item;
}

void ObjectDataViewModel::UpdateBitmapForNode(ObjectDataViewModelNode *node)
{
    bool is_volume_node = node->GetType() & itVolume;
    int  vol_type       = static_cast<int>(node->GetVolumeType());
    is_volume_node &= (vol_type >= int(ModelVolumeType::MODEL_PART) && vol_type <= int(ModelVolumeType::SUPPORT_ENFORCER));

    if (!node->has_warning_icon() && !node->has_lock()) {
        node->SetBitmap(is_volume_node ? (
            node->is_text_volume() ? m_text_volume_bmps.at(vol_type) : 
            node->is_svg_volume() ? m_svg_volume_bmps.at(vol_type) : 
            m_volume_bmps.at(vol_type)) : m_empty_bmp);
        return;
    }

    std::string scaled_bitmap_name = std::string();
    if (node->has_warning_icon())
        scaled_bitmap_name += node->warning_icon_name();
    if (node->has_lock()) 
        scaled_bitmap_name += LockIcon;
    if (is_volume_node)
        scaled_bitmap_name += std::to_string(vol_type);
    scaled_bitmap_name += (wxGetApp().dark_mode() ? "-dm" : "-lm");

    wxBitmap* bmp = m_bitmap_cache->find(scaled_bitmap_name);
    if (bmp == nullptr) {
        std::vector<wxBitmap> bmps;
        if (node->has_warning_icon())
            bmps.emplace_back(node->warning_icon_name() == WarningIcon ? m_warning_bmp : m_warning_manifold_bmp);
        if (node->has_lock())
            bmps.emplace_back(m_lock_bmp);
        if (is_volume_node)
            bmps.emplace_back(
                node->is_text_volume() ? m_text_volume_bmps[vol_type] :
                node->is_svg_volume() ? m_svg_volume_bmps[vol_type] : 
                m_volume_bmps[vol_type]);
        bmp = m_bitmap_cache->insert(scaled_bitmap_name, bmps);
    }

    node->SetBitmap(*bmp);
}

void ObjectDataViewModel::UpdateBitmapForNode(ObjectDataViewModelNode* node, const std::string& warning_icon_name, bool has_lock)
{
    node->SetWarningIconName(warning_icon_name);
    node->SetLock(has_lock);
    UpdateBitmapForNode(node);
}

wxDataViewItem ObjectDataViewModel::AddObject(ModelObject *model_object, std::string warning_bitmap, bool has_lock, bool refresh)
{
    // get object node params
    wxString name = from_u8(model_object->name);
    int extruder = model_object->config.has("extruder") ? model_object->config.extruder() : 1;
    int plate_idx = -1;
    ObjectDataViewModelNode* plate_node = nullptr;
    for (auto plate : m_plates) {
        if (plate->m_part_plate != nullptr &&
            plate->m_part_plate->contain_instance_totally(model_object, 0))
        {
            plate_node = plate;
            plate_idx = plate->m_part_plate->get_index();
            break;
        }
    }

    // create object node
    //const wxString extruder_str = extruder == 0 ? _(L("default")) : wxString::Format("%d", extruder);
    const wxString extruder_str = wxString::Format("%d", extruder);
    auto obj_node = new ObjectDataViewModelNode(name, extruder_str, plate_idx, model_object);
    // Add warning icon if detected auto-repaire
    UpdateBitmapForNode(obj_node, warning_bitmap, has_lock);

    if (plate_node != nullptr) {
        obj_node->m_parent = plate_node;
    }
    else {
        obj_node->m_parent = m_plate_outside;
        plate_node = m_plate_outside;
    }

    m_objects.push_back(obj_node);
    plate_node->GetChildren().push_back(obj_node);

    // notify control
    wxDataViewItem child((void*)obj_node);
    wxDataViewItem parent((void*)plate_node);

    if (refresh) {
        ItemAdded(parent, child);
    }
    return child;
}

wxDataViewItem ObjectDataViewModel::AddVolumeChild( const wxDataViewItem &parent_item,
                                                    const wxString &name,
                                                    const Slic3r::ModelVolumeType volume_type,
                                                    const bool is_text_volume,
                                                    const bool is_svg_volume,
                                                    const std::string& warning_icon_name/* = std::string()*/,
                                                    const int extruder/* = 0*/,
                                                    const bool create_frst_child/* = true*/)
{
	ObjectDataViewModelNode *root = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
	if (!root) return wxDataViewItem(0);

    // get insertion position according to the existed Layers and/or Instances Items
    int insert_position = get_root_idx(root, itLayerRoot);
    if (insert_position < 0)
        insert_position = get_root_idx(root, itInstanceRoot);

    if (create_frst_child && root->m_volumes_cnt == 0)
    {
        const Slic3r::ModelVolumeType type = Slic3r::ModelVolumeType::MODEL_PART;
        const auto node = new ObjectDataViewModelNode(root, root->m_name, type, is_text_volume, is_svg_volume, root->m_extruder, 0);
        UpdateBitmapForNode(node, root->m_warning_icon_name, root->has_lock());

        insert_position < 0 ? root->Append(node) : root->Insert(node, insert_position);
		// notify control
		const wxDataViewItem child((void*)node);
		ItemAdded(parent_item, child);

        root->m_volumes_cnt++;
        if (insert_position >= 0) insert_position++;
	}

    // BBS
    wxString extruder_str;
    if (extruder == 0) {
        if (volume_type == ModelVolumeType::PARAMETER_MODIFIER)
            extruder_str = _L("default");
        else
            extruder_str = root->m_extruder;
    }
    else {
        extruder_str = wxString::Format("%d", extruder);
    }

    const auto node = new ObjectDataViewModelNode(root, name, volume_type, is_text_volume, is_svg_volume, extruder_str, root->m_volumes_cnt);
    UpdateBitmapForNode(node, warning_icon_name, root->has_lock() && volume_type < ModelVolumeType::PARAMETER_MODIFIER);
    insert_position < 0 ? root->Append(node) : root->Insert(node, insert_position);

    // if part with errors is added, but object wasn't marked, then mark it
    if (!warning_icon_name.empty() && warning_icon_name != root->m_warning_icon_name &&
        (root->m_warning_icon_name.empty() || root->m_warning_icon_name == WarningManifoldIcon) ) {
        root->SetWarningIconName(warning_icon_name);
        UpdateBitmapForNode(root);
    }

	// notify control
    const wxDataViewItem child((void*)node);
    ItemAdded(parent_item, child);
    root->m_volumes_cnt++;

	return child;
}

wxDataViewItem ObjectDataViewModel::AddInfoChild(const wxDataViewItem &parent_item, InfoItemType info_type)
{
    ObjectDataViewModelNode *root = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (!root) return wxDataViewItem(0);

    const auto node = new ObjectDataViewModelNode(root, info_type);

    // The new item should be added according to its order in InfoItemType.
    // Find last info item with lower index and append after it.
    const auto& children = root->GetChildren();
    // If SettingsItem exists, it have to be on the first position always
    bool is_settings_item = children.size() > 0 && children[0]->GetType() == itSettings;
    int idx = is_settings_item ? 0 : -1;
    for (size_t i = is_settings_item ? 1 : 0; i < children.size(); ++i) {
        if (children[i]->GetType() == itInfo && int(children[i]->GetInfoItemType()) < int(info_type) )
            idx = i;
    }

    root->Insert(node, idx+1);
    node->SetBitmap(m_info_bmps.at(info_type));
    // notify control
    const wxDataViewItem child((void*)node);
    ItemAdded(parent_item, child);
    return child;
}

wxDataViewItem ObjectDataViewModel::AddSettingsChild(const wxDataViewItem &parent_item)
{
    ObjectDataViewModelNode *root = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (!root) return wxDataViewItem(0);

    const auto node = new ObjectDataViewModelNode(root, itSettings);

    root->Insert(node, 0);
    // notify control
    const wxDataViewItem child((void*)node);
    ItemAdded(parent_item, child);
    return child;
}

/* return values:
 * true     => root_node is created and added to the parent_root
 * false    => root node alredy exists
*/
static bool append_root_node(ObjectDataViewModelNode *parent_node,
                             ObjectDataViewModelNode **root_node,
                             const ItemType root_type)
{
    const int inst_root_id = get_root_idx(parent_node, root_type);

    *root_node = inst_root_id < 0 ?
                new ObjectDataViewModelNode(parent_node, root_type) :
                parent_node->GetNthChild(inst_root_id);

    if (inst_root_id < 0) {
        if ((root_type&itInstanceRoot) ||
            ( (root_type&itLayerRoot) && get_root_idx(parent_node, itInstanceRoot)<0) )
            parent_node->Append(*root_node);
        else if (root_type&itLayerRoot)
            parent_node->Insert(*root_node, static_cast<unsigned int>(get_root_idx(parent_node, itInstanceRoot)));
        return true;
    }

    return false;
}

wxDataViewItem ObjectDataViewModel::AddRoot(const wxDataViewItem &parent_item, ItemType root_type)
{
    ObjectDataViewModelNode *parent_node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (!parent_node) return wxDataViewItem(0);

    // get InstanceRoot node
    ObjectDataViewModelNode *root_node { nullptr };
    const bool appended = append_root_node(parent_node, &root_node, root_type);
    if (!root_node) return wxDataViewItem(0);

    const wxDataViewItem root_item((void*)root_node);

    if (appended)
        ItemAdded(parent_item, root_item);// notify control
    return root_item;
}

wxDataViewItem ObjectDataViewModel::AddInstanceRoot(const wxDataViewItem &parent_item)
{
    return AddRoot(parent_item, itInstanceRoot);
}

wxDataViewItem ObjectDataViewModel::AddInstanceChild(const wxDataViewItem &parent_item, size_t num)
{
    std::vector<bool> print_indicator(num, true);
    std::vector<int> plate_indicator(num, -1);

    // if InstanceRoot item isn't created for this moment
    if (!GetInstanceRootItem(parent_item).IsOk())
        // use object's printable state to first instance
        print_indicator[0] = IsPrintable(parent_item);

    return wxDataViewItem((void*)AddInstanceChild(parent_item, print_indicator, plate_indicator));
}

wxDataViewItem ObjectDataViewModel::AddInstanceChild(const wxDataViewItem& parent_item,
                                                     const std::vector<bool>& print_indicator,
                                                     const std::vector<int>& plate_indicator)
{
    const wxDataViewItem inst_root_item = AddInstanceRoot(parent_item);
    if (!inst_root_item) return wxDataViewItem(0);

    ObjectDataViewModelNode* inst_root_node = static_cast<ObjectDataViewModelNode*>(inst_root_item.GetID());

    // Add instance nodes
    ObjectDataViewModelNode *instance_node = nullptr;
    size_t counter = 0;
    while (counter < print_indicator.size()) {
        instance_node = new ObjectDataViewModelNode(inst_root_node, itInstance, plate_indicator[counter]);

        instance_node->set_printable_icon(print_indicator[counter] ? piPrintable : piUnprintable);

        inst_root_node->Append(instance_node);
        // notify control
        const wxDataViewItem instance_item((void*)instance_node);
        ItemAdded(inst_root_item, instance_item);
        ++counter;
    }

    // update object_node printable property
    UpdateObjectPrintable(parent_item);

    return wxDataViewItem((void*)instance_node);
}

void ObjectDataViewModel::UpdateObjectPrintable(wxDataViewItem parent_item)
{
    const wxDataViewItem inst_root_item = GetInstanceRootItem(parent_item);
    if (!inst_root_item)
        return;

    ObjectDataViewModelNode* inst_root_node = static_cast<ObjectDataViewModelNode*>(inst_root_item.GetID());

    const size_t child_cnt = inst_root_node->GetChildren().Count();
    PrintIndicator obj_pi = piUnprintable;
    for (size_t i=0; i < child_cnt; i++)
        if (inst_root_node->GetNthChild(i)->IsPrintable() & piPrintable) {
            obj_pi = piPrintable;
            break;
        }
    // and set printable state for object_node to piUndef
    ObjectDataViewModelNode* obj_node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    obj_node->set_printable_icon(obj_pi);
    ItemChanged(parent_item);
}

// update printable property for all instances from object
void ObjectDataViewModel::UpdateInstancesPrintable(wxDataViewItem parent_item)
{
    const wxDataViewItem inst_root_item = GetInstanceRootItem(parent_item);
    if (!inst_root_item)
        return;

    ObjectDataViewModelNode* obj_node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    const PrintIndicator obj_pi = obj_node->IsPrintable();

    ObjectDataViewModelNode* inst_root_node = static_cast<ObjectDataViewModelNode*>(inst_root_item.GetID());
    const size_t child_cnt = inst_root_node->GetChildren().Count();

    for (size_t i=0; i < child_cnt; i++)
    {
        ObjectDataViewModelNode* inst_node = inst_root_node->GetNthChild(i);
        // and set printable state for object_node to piUndef
        inst_node->set_printable_icon(obj_pi);
        ItemChanged(wxDataViewItem((void*)inst_node));
    }
}

bool ObjectDataViewModel::IsPrintable(const wxDataViewItem& item) const
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node)
        return false;

    return node->IsPrintable() == piPrintable;
}

wxDataViewItem ObjectDataViewModel::AddLayersRoot(const wxDataViewItem &parent_item)
{
    return AddRoot(parent_item, itLayerRoot);
}

wxDataViewItem ObjectDataViewModel::AddLayersChild(const wxDataViewItem &parent_item,
                                                   const t_layer_height_range& layer_range,
                                                   const int extruder/* = 1*/,
                                                   const int index /* = -1*/)
{
    ObjectDataViewModelNode *parent_node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (!parent_node) return wxDataViewItem(0);

    // BBS
    wxString extruder_str = extruder == 0 ? _(L("default")) : wxString::Format("%d", extruder);

    // get LayerRoot node
    ObjectDataViewModelNode *layer_root_node;
    wxDataViewItem layer_root_item;

    if (parent_node->GetType() & itLayerRoot) {
        layer_root_node = parent_node;
        layer_root_item = parent_item;
    }
    else {
        const int root_idx = get_root_idx(parent_node, itLayerRoot);
        if (root_idx < 0) return wxDataViewItem(0);
        layer_root_node = parent_node->GetNthChild(root_idx);
        layer_root_item = wxDataViewItem((void*)layer_root_node);
    }

    // Add layer node
    ObjectDataViewModelNode *layer_node = new ObjectDataViewModelNode(layer_root_node, layer_range, index, extruder_str);
    if (index < 0)
        layer_root_node->Append(layer_node);
    else
        layer_root_node->Insert(layer_node, index);

    // notify control
    const wxDataViewItem layer_item((void*)layer_node);
    ItemAdded(layer_root_item, layer_item);

    return layer_item;
}

size_t ObjectDataViewModel::GetItemIndexForFirstVolume(ObjectDataViewModelNode* node_parent)
{
    assert(node_parent->m_volumes_cnt > 0);
    for (size_t vol_idx = 0; vol_idx < node_parent->GetChildCount(); vol_idx++)
        if (node_parent->GetNthChild(vol_idx)->GetType() == itVolume)
            return vol_idx;
    return -1;
}

wxDataViewItem ObjectDataViewModel::DeletePlate(const int plate_idx)
{
    wxDataViewItem ret_item(nullptr);
    for (auto plate : m_plates) {
        if (plate->m_plate_idx == plate_idx) {
            ret_item = Delete(wxDataViewItem(plate));
        }
    }

    return ret_item;
}

wxDataViewItem ObjectDataViewModel::Delete(const wxDataViewItem &item)
{
	auto ret_item = wxDataViewItem(0);
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	if (!node)      // happens if item.IsOk()==false
		return ret_item;

	auto node_parent = node->GetParent();
	wxDataViewItem parent(node_parent);

    if (node->m_type & itPlate) {
        for (auto child : node->GetChildren()) {
            assert((child->GetType() & itObject) != 0);

            if (child->m_plate_idx == node->m_plate_idx)
                ReparentObject(m_plate_outside, child);
        }

        // FIX: should remove from children collection soon, or will conflict GetChildren
        m_plates.erase(std::remove(m_plates.begin(), m_plates.end(), node), m_plates.end());
        ItemDeleted(parent, wxDataViewItem(node));
        delete node;
        return parent;
    }

    if (node->m_type & itObject) {
        auto it = find(m_objects.begin(), m_objects.end(), node);
        if (it != m_objects.end())
        {
            // Delete all sub-items
            int i = (*it)->GetChildCount() - 1;
            while (i >= 0) {
                Delete(wxDataViewItem((*it)->GetNthChild(i)));
                i = (*it)->GetChildCount() - 1;
            }
            m_objects.erase(it);
            node_parent->GetChildren().Remove(node);
        }

        ItemDeleted(parent, wxDataViewItem(node));
        delete node;
        return parent;
    }

	// first remove the node from the parent's array of children;
	// NOTE: MyObjectTreeModelNodePtrArray is only an array of _pointers_
	//       thus removing the node from it doesn't result in freeing it
    if (node->m_type & (itInstanceRoot | itLayerRoot))
    {
        // node can be deleted by the Delete, let's check its type while we safely can
        bool is_instance_root = (node->m_type & itInstanceRoot);

        for (int i = int(node->GetChildCount() - 1); i >= (is_instance_root ? 1 : 0); i--)
            Delete(wxDataViewItem(node->GetNthChild(i)));

        return parent;
    }

    auto id = node_parent->GetChildren().Index(node);
    auto idx = node->GetIdx();


    if (node->m_type & (itVolume | itLayer)) {
        node_parent->m_volumes_cnt--;
        DeleteSettings(item);
    }
    node_parent->GetChildren().Remove(node);

    if (id > 0) {
        if (size_t(id) == node_parent->GetChildCount()) id--;
        ret_item = wxDataViewItem(node_parent->GetChildren().Item(id));
    }

    //update idx value for remaining child-nodes
    auto children = node_parent->GetChildren();
    for (size_t i = 0; i < node_parent->GetChildCount() && idx >= 0; i++)
    {
        auto cur_idx = children[i]->GetIdx();
        if (cur_idx > idx)
            children[i]->SetIdx(cur_idx - 1);
    }

    // if there is last instance item, delete both of it and instance root item
    if (node_parent->GetChildCount() == 1 && node_parent->GetNthChild(0)->m_type == itInstance)
    {
        delete node;
        ItemDeleted(parent, item);

        ObjectDataViewModelNode* last_instance_node = node_parent->GetNthChild(0);
        PrintIndicator last_instance_printable = last_instance_node->IsPrintable();
        node_parent->GetChildren().Remove(last_instance_node);
        delete last_instance_node;
        ItemDeleted(parent, wxDataViewItem(last_instance_node));

        ObjectDataViewModelNode* obj_node = node_parent->GetParent();
        obj_node->set_printable_icon(last_instance_printable);
        obj_node->GetChildren().Remove(node_parent);
        delete node_parent;
        ret_item = wxDataViewItem(obj_node);

#ifndef __WXGTK__
        if (obj_node->GetChildCount() == 0)
            obj_node->m_container = false;
#endif //__WXGTK__
        ItemDeleted(ret_item, wxDataViewItem(node_parent));
        return ret_item;
    }

    if (node->m_type & itInstance)
        UpdateObjectPrintable(wxDataViewItem(node_parent->GetParent()));

    // if there was last layer item, delete this one and layers root item
    if (node_parent->GetChildCount() == 0 && node_parent->m_type == itLayerRoot)
    {
        ObjectDataViewModelNode* obj_node = node_parent->GetParent();
        obj_node->GetChildren().Remove(node_parent);
        delete node_parent;
        ret_item = wxDataViewItem(obj_node);

#ifndef __WXGTK__
        if (obj_node->GetChildCount() == 0)
            obj_node->m_container = false;
#endif //__WXGTK__
        ItemDeleted(ret_item, wxDataViewItem(node_parent));
        return ret_item;
    }

    // if there is last volume item after deleting, delete this last volume too
    if (node_parent->GetChildCount() <= 3) // 3??? #ys_FIXME
    {
        int vol_cnt = 0;
        int vol_idx = 0;
        for (size_t i = 0; i < node_parent->GetChildCount(); ++i) {
            if (node_parent->GetNthChild(i)->GetType() == itVolume) {
                vol_idx = i;
                vol_cnt++;
            }
            if (vol_cnt > 1)
                break;
        }

        if (vol_cnt == 1) {
            delete node;
            ItemDeleted(parent, item);

            ObjectDataViewModelNode* last_child_node = node_parent->GetNthChild(vol_idx);
            DeleteSettings(wxDataViewItem(last_child_node));
            node_parent->GetChildren().Remove(last_child_node);
            node_parent->m_volumes_cnt = 0;
            delete last_child_node;

#ifndef __WXGTK__
            if (node_parent->GetChildCount() == 0)
                node_parent->m_container = false;
#endif //__WXGTK__
            ItemDeleted(parent, wxDataViewItem(last_child_node));

            // BBS: Current object is already removed in model.objects,
            // but it is still exists in m_objects at the moment.
            // So the object index calculated here is not valid.
#if 0
            wxCommandEvent event(wxCUSTOMEVT_LAST_VOLUME_IS_DELETED);
            auto it = find(m_objects.begin(), m_objects.end(), node_parent);
            event.SetInt(it == m_objects.end() ? -1 : it - m_objects.begin());
            wxPostEvent(m_ctrl, event);
#endif
            ret_item = parent;

            return ret_item;
        }
    }

    // free the node
    delete node;

    // set m_containet to FALSE if parent has no child
#ifndef __WXGTK__
    if (node_parent->GetChildCount() == 0)
        node_parent->m_container = false;
#endif //__WXGTK__
    ret_item = parent;

	// notify control
	ItemDeleted(parent, item);
	return ret_item;
}

wxDataViewItem ObjectDataViewModel::DeleteLastInstance(const wxDataViewItem &parent_item, size_t num)
{
    auto ret_item = wxDataViewItem(0);
    ObjectDataViewModelNode *parent_node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (!parent_node) return ret_item;

    const int inst_root_id = get_root_idx(parent_node, itInstanceRoot);
    if (inst_root_id < 0) return ret_item;

    wxDataViewItemArray items;
    ObjectDataViewModelNode *inst_root_node = parent_node->GetNthChild(inst_root_id);
    const wxDataViewItem inst_root_item((void*)inst_root_node);

    const int inst_cnt = inst_root_node->GetChildCount();
    const bool delete_inst_root_item = inst_cnt - num < 2 ? true : false;

    PrintIndicator last_inst_printable = piUndef;

    int stop = delete_inst_root_item ? 0 : inst_cnt - num;
    for (int i = inst_cnt - 1; i >= stop;--i) {
        ObjectDataViewModelNode *last_instance_node = inst_root_node->GetNthChild(i);
        if (i==0) last_inst_printable = last_instance_node->IsPrintable();
        inst_root_node->GetChildren().Remove(last_instance_node);
        delete last_instance_node;
        ItemDeleted(inst_root_item, wxDataViewItem(last_instance_node));
    }

    if (delete_inst_root_item) {
        ret_item = parent_item;
        parent_node->GetChildren().Remove(inst_root_node);
        parent_node->set_printable_icon(last_inst_printable);
        ItemDeleted(parent_item, inst_root_item);
        ItemChanged(parent_item);
#ifndef __WXGTK__
        if (parent_node->GetChildCount() == 0)
            parent_node->m_container = false;
#endif //__WXGTK__
    }

    // update object_node printable property
    UpdateObjectPrintable(parent_item);

    return ret_item;
}

void ObjectDataViewModel::ResetAll()
{
    // BBS
    // FIX: should remove from children collection soon, or will conflict GetChildren
    while (!m_plates.empty()) {
        auto plate = m_plates.front();
        Delete(wxDataViewItem(plate));
    }

    m_plates.clear();
    m_plate_outside = nullptr;
    m_objects.clear();

    AddOutsidePlate();
}

void ObjectDataViewModel::DeleteChildren(wxDataViewItem& parent)
{
    ObjectDataViewModelNode *root = static_cast<ObjectDataViewModelNode*>(parent.GetID());
    if (!root)      // happens if item.IsOk()==false
        return;

    // first remove the node from the parent's array of children;
    // NOTE: MyObjectTreeModelNodePtrArray is only an array of _pointers_
    //       thus removing the node from it doesn't result in freeing it
    auto& children = root->GetChildren();
    for (int id = root->GetChildCount() - 1; id >= 0; --id)
    {
        auto node = children[id];
        auto item = wxDataViewItem(node);
        children.RemoveAt(id);

        if (node->m_type == itVolume)
            root->m_volumes_cnt--;

        // free the node
        delete node;

        // notify control
        ItemDeleted(parent, item);
    }

    // set m_containet to FALSE if parent has no child
#ifndef __WXGTK__
        root->m_container = false;
#endif //__WXGTK__
}

void ObjectDataViewModel::DeleteVolumeChildren(wxDataViewItem& parent)
{
    ObjectDataViewModelNode *root = static_cast<ObjectDataViewModelNode*>(parent.GetID());
    if (!root)      // happens if item.IsOk()==false
        return;

    // first remove the node from the parent's array of children;
    // NOTE: MyObjectTreeModelNodePtrArray is only an array of _pointers_
    //       thus removing the node from it doesn't result in freeing it
    auto& children = root->GetChildren();
    for (int id = root->GetChildCount() - 1; id >= 0; --id)
    {
        auto node = children[id];
        if (node->m_type != itVolume)
            continue;

        auto item = wxDataViewItem(node);
        DeleteSettings(item);
        children.RemoveAt(id);

        // free the node
        delete node;

        // notify control
        ItemDeleted(parent, item);
    }
    root->m_volumes_cnt = 0;

    // set m_containet to FALSE if parent has no child
#ifndef __WXGTK__
    root->m_container = false;
#endif //__WXGTK__
}

void ObjectDataViewModel::DeleteSettings(const wxDataViewItem& parent)
{
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(parent.GetID());
    if (!node) return;
#if NEW_OBJECT_SETTING
    node->set_action_icon(false);
    ItemChanged(parent);
#else
    // if volume has a "settings"item, than delete it before volume deleting
    if (node->GetChildCount() > 0 && node->GetNthChild(0)->GetType() == itSettings) {
        auto settings_node = node->GetNthChild(0);
        auto settings_item = wxDataViewItem(settings_node);
        node->GetChildren().RemoveAt(0);
        delete settings_node;
        // BBS
        if (node->GetChildCount() == 0) {
            node->m_container = false;
        }
        ItemDeleted(parent, settings_item);
    }
#endif
}

wxDataViewItem ObjectDataViewModel::GetItemById(int obj_idx)
{
    if (size_t(obj_idx) >= m_objects.size())
	{
		printf("Error! Out of objects range.\n");
		return wxDataViewItem(0);
	}
	return wxDataViewItem(m_objects[obj_idx]);
}

wxDataViewItem ObjectDataViewModel::GetItemByPlateId(int plate_idx)
{
    for (auto plate : m_plates) {
        if (plate->m_plate_idx == plate_idx)
            return wxDataViewItem(plate);
    }
    return wxDataViewItem(nullptr);
}

void ObjectDataViewModel::SetCurSelectedPlateFullName(int plate_idx, const std::string & custom_name) { 
    for (auto plate : m_plates) {
        if (plate->m_plate_idx == plate_idx) { 
            wxString plate_full_name =_L("Plate");
            plate_full_name += wxString::Format(" %d", plate_idx + 1);
            if (!custom_name.empty()) {
                plate_full_name += wxString(" (", wxConvUTF8) + from_u8(custom_name) + wxString(")", wxConvUTF8);
            }
            plate->SetName(plate_full_name);
        }
    }
}

wxDataViewItem ObjectDataViewModel::GetItemByVolumeId(int obj_idx, int volume_idx)
{
    if (size_t(obj_idx) >= m_objects.size()) {
		printf("Error! Out of objects range.\n");
		return wxDataViewItem(0);
	}

    auto parent = m_objects[obj_idx];
    if (parent->GetChildCount() == 0 ||
        (parent->GetChildCount() == 1 && parent->GetNthChild(0)->GetType() & itSettings )) {
        if (volume_idx == 0)
            return GetItemById(obj_idx);

        printf("Error! Object has no one volume.\n");
        return wxDataViewItem(0);
    }

    for (size_t i = 0; i < parent->GetChildCount(); i++) {
        auto child = parent->GetNthChild(i);
        if (child->m_idx == volume_idx && child->GetType() & itVolume)
            return wxDataViewItem(parent->GetNthChild(i));
    }

    return wxDataViewItem(0);
}

wxDataViewItem ObjectDataViewModel::GetItemById(const int obj_idx, const int sub_obj_idx, const ItemType parent_type)
{
    if (size_t(obj_idx) >= m_objects.size()) {
        printf("Error! Out of objects range.\n");
        return wxDataViewItem(0);
    }

    auto item = GetItemByType(wxDataViewItem(m_objects[obj_idx]), parent_type);
    if (!item)
        return wxDataViewItem(0);

    auto parent = static_cast<ObjectDataViewModelNode*>(item.GetID());
    for (size_t i = 0; i < parent->GetChildCount(); i++)
        if (parent->GetNthChild(i)->m_idx == sub_obj_idx)
            return wxDataViewItem(parent->GetNthChild(i));

    return wxDataViewItem(0);
}

wxDataViewItem ObjectDataViewModel::GetItemByInstanceId(int obj_idx, int inst_idx)
{
    return GetItemById(obj_idx, inst_idx, itInstanceRoot);
}

wxDataViewItem ObjectDataViewModel::GetItemByLayerId(int obj_idx, int layer_idx)
{
    return GetItemById(obj_idx, layer_idx, itLayerRoot);
}

wxDataViewItem ObjectDataViewModel::GetItemByLayerRange(const int obj_idx, const t_layer_height_range& layer_range)
{
    if (size_t(obj_idx) >= m_objects.size()) {
        printf("Error! Out of objects range.\n");
        return wxDataViewItem(0);
    }

    auto item = GetItemByType(wxDataViewItem(m_objects[obj_idx]), itLayerRoot);
    if (!item)
        return wxDataViewItem(0);

    auto parent = static_cast<ObjectDataViewModelNode*>(item.GetID());
    for (size_t i = 0; i < parent->GetChildCount(); i++)
        if (parent->GetNthChild(i)->m_layer_range == layer_range)
            return wxDataViewItem(parent->GetNthChild(i));

    return wxDataViewItem(0);
}

int  ObjectDataViewModel::GetItemIdByLayerRange(const int obj_idx, const t_layer_height_range& layer_range)
{
    wxDataViewItem item = GetItemByLayerRange(obj_idx, layer_range);
    if (!item)
        return -1;

    return GetLayerIdByItem(item);
}

int ObjectDataViewModel::GetIdByItem(const wxDataViewItem& item) const
{
	if(!item.IsOk())
        return -1;

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	auto it = find(m_objects.begin(), m_objects.end(), node);
	if (it == m_objects.end())
		return -1;

	return it - m_objects.begin();
}

int  ObjectDataViewModel::GetPlateIdByItem(const wxDataViewItem& item) const
{
    if (!item.IsOk())
        return -1;

    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    auto it = find(m_plates.begin(), m_plates.end(), node);
    if (it == m_plates.end())
        return -1;

    return it - m_plates.begin();
}

int ObjectDataViewModel::GetIdByItemAndType(const wxDataViewItem& item, const ItemType type) const
{
	wxASSERT(item.IsOk());

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	if (!node || node->m_type != type)
		return -1;
	return node->GetIdx();
}

int ObjectDataViewModel::GetObjectIdByItem(const wxDataViewItem& item) const
{
    return GetIdByItem(GetObject(item));
}

int ObjectDataViewModel::GetVolumeIdByItem(const wxDataViewItem& item) const
{
    return GetIdByItemAndType(item, itVolume);
}

int ObjectDataViewModel::GetInstanceIdByItem(const wxDataViewItem& item) const
{
    return GetIdByItemAndType(item, itInstance);
}

int ObjectDataViewModel::GetLayerIdByItem(const wxDataViewItem& item) const
{
    return GetIdByItemAndType(item, itLayer);
}

t_layer_height_range ObjectDataViewModel::GetLayerRangeByItem(const wxDataViewItem& item) const
{
    wxASSERT(item.IsOk());

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node || node->m_type != itLayer)
        return { 0.0f, 0.0f };
    return node->GetLayerRange();
}

bool ObjectDataViewModel::UpdateColumValues(unsigned col)
{
    switch (col)
    {
    case colPrint:
    case colName:
    case colEditing:
        return true;
    case colFilament:
    {
        wxDataViewItemArray items;
        GetAllChildren(wxDataViewItem(nullptr), items);

        if (items.IsEmpty()) return false;

        for (auto item : items)
            UpdateExtruderBitmap(item);

        return true;
    }
    default:
        printf("MyObjectTreeModel::SetValue: wrong column");
    }
    return false;
}


void ObjectDataViewModel::UpdateExtruderBitmap(wxDataViewItem item)
{
    if (!item.IsOk())
        return;
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    node->UpdateExtruderAndColorIcon();
}

void ObjectDataViewModel::UpdateItemNames()
{
    wxDataViewItemArray changed_items;

    for (auto obj_node : m_objects) {
        ModelObject* mo = obj_node->m_model_object;
        wxString new_obj_name = from_u8(mo->name);
        if (obj_node->m_name != new_obj_name) {
            obj_node->m_name = new_obj_name;
            changed_items.push_back(wxDataViewItem(obj_node));
        }

        for (auto child_node : obj_node->GetChildren()) {
            if ((child_node->GetType() & itVolume) == 0)
                continue;

            assert(child_node->GetIdx() < mo->volumes.size());

            ModelVolume* mv = mo->volumes[child_node->GetIdx()];
            wxString new_vol_name = from_u8(mv->name);
            if (child_node->m_name != new_vol_name) {
                child_node->m_name = new_vol_name;
                changed_items.push_back(wxDataViewItem(child_node));
            }
        }
    }

    ItemsChanged(changed_items);
}

void ObjectDataViewModel::assembly_name()
{
    assembly_name_list.clear();
    for (int i = 0; i < m_plates.size(); ++i) {
        assembly_name(m_plates[i], m_plates[i]->GetName());
    }
    search_found_list = assembly_name_list;
}

void ObjectDataViewModel::assembly_name(ObjectDataViewModelNode* item, wxString name)
{
    auto type = this->GetItemType(wxDataViewItem(item));
    if (type != itPlate) {
        wxString str = name + ":" + item->GetName();
        assembly_name_list.push_back(std::make_tuple(item, str, str));
    }
    else {
        assembly_name_list.push_back(std::make_tuple(item, name, name));
    }
    for (size_t i = 0; i < item->GetChildCount(); ++i) {
        wxString str_name = name + ":" + item->GetName();
        if (type == itPlate) {
            str_name = name;
        }
        assembly_name(item->GetNthChild(i), str_name);
    }
}

void ObjectDataViewModel::search_object(wxString search_text)
{
    if (search_text.empty()) {
        search_found_list = assembly_name_list;
    }
    else {
        search_found_list.clear();
        search_text = search_text.MakeLower();

        for (const auto& [model_node, name, tip] : assembly_name_list) {
            wxString sub_str = name;
            sub_str = sub_str.MakeLower();

            wxString new_str = "";
            size_t search_text_len = search_text.length();
            size_t curr_str_len = 0;
            size_t pos = sub_str.find(search_text);
            while (pos != wxString::npos) {
                wxString new_search_str = "<b>" + name.Mid(curr_str_len + pos, search_text_len) + "</b>";
                new_str += name.Mid(curr_str_len, pos) + new_search_str;
                curr_str_len += search_text_len + pos;
                sub_str = sub_str.substr(pos + search_text_len);
                pos = sub_str.find(search_text);
            }

            if (curr_str_len > 0 && curr_str_len < name.length()) {
                new_str += name.substr(curr_str_len);
            }
            if (!new_str.empty())
                search_found_list.push_back(std::tuple(model_node, new_str, tip));
        }
    }
}

void ObjectDataViewModel::sys_color_changed()
{
    for (ObjectDataViewModelNode *item : m_objects) {
        item->sys_color_changed();
        ItemChanged(wxDataViewItem((void *) item));
    }
}

// BBS: add use_obj_extruder
void ObjectDataViewModel::UpdateVolumesExtruderBitmap(wxDataViewItem obj_item, bool use_obj_extruder)
{
    if (!obj_item.IsOk() || GetItemType(obj_item) != itObject)
        return;
    ObjectDataViewModelNode* obj_node = static_cast<ObjectDataViewModelNode*>(obj_item.GetID());
    for (auto child : obj_node->GetChildren())
        if (child->GetVolumeType() == ModelVolumeType::MODEL_PART)
            child->UpdateExtruderAndColorIcon(use_obj_extruder ? obj_node->GetExtruder() : "");
}

int ObjectDataViewModel::GetDefaultExtruderIdx(wxDataViewItem item)
{
    ItemType type = GetItemType(item);
    if (type == itObject)
        return 0;

    if (type == itVolume && GetVolumeType(item) == ModelVolumeType::MODEL_PART) {
        wxDataViewItem obj_item = GetParent(item);
        int extruder_id = GetExtruderNumber(obj_item);
        if (extruder_id > 0) extruder_id--;
        return extruder_id;
    }

    return -1;
}

void ObjectDataViewModel::GetItemInfo(const wxDataViewItem& item, ItemType& type, int& obj_idx, int& idx)
{
    wxASSERT(item.IsOk());
    type = itUndef;

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node ||
        node->GetIdx() <-1 ||
        ( node->GetIdx() == -1 &&
         !(node->GetType() & (itObject | itSettings | itInstanceRoot | itLayerRoot | itInfo))
        )
       )
        return;

    idx = node->GetIdx();
    type = node->GetType();

    ObjectDataViewModelNode *parent_node = node->GetParent();
    if (!parent_node) return;

    // get top parent (Object) node
    while (parent_node->m_type != itObject)
        parent_node = parent_node->GetParent();

    auto it = find(m_objects.begin(), m_objects.end(), parent_node);
    if (it != m_objects.end())
        obj_idx = it - m_objects.begin();
    else
        type = itUndef;
}

int ObjectDataViewModel::GetRowByItem(const wxDataViewItem& item) const
{
    if (m_objects.empty())
        return -1;

    int row_num = 0;

    for (size_t i = 0; i < m_objects.size(); i++)
    {
        row_num++;
        if (item == wxDataViewItem(m_objects[i]))
            return row_num;

        for (size_t j = 0; j < m_objects[i]->GetChildCount(); j++)
        {
            row_num++;
            ObjectDataViewModelNode* cur_node = m_objects[i]->GetNthChild(j);
            if (item == wxDataViewItem(cur_node))
                return row_num;

            if (cur_node->m_type == itVolume && cur_node->GetChildCount() == 1)
                row_num++;
            if (cur_node->m_type == itInstanceRoot)
            {
                row_num++;
                for (size_t t = 0; t < cur_node->GetChildCount(); t++)
                {
                    row_num++;
                    if (item == wxDataViewItem(cur_node->GetNthChild(t)))
                        return row_num;
                }
            }
        }
    }

    return -1;
}

bool ObjectDataViewModel::InvalidItem(const wxDataViewItem& item)
{
    if (!item)
        return true;

    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node || node->invalid())
        return true;

    return false;
}

wxString ObjectDataViewModel::GetName(const wxDataViewItem &item) const
{
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	if (!node)      // happens if item.IsOk()==false
		return wxEmptyString;

	return node->m_name;
}

wxBitmap& ObjectDataViewModel::GetBitmap(const wxDataViewItem &item) const
{
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    return node->m_bmp;
}

wxString ObjectDataViewModel::GetExtruder(const wxDataViewItem& item) const
{
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	if (!node)      // happens if item.IsOk()==false
		return wxEmptyString;

	return node->m_extruder;
}

int ObjectDataViewModel::GetExtruderNumber(const wxDataViewItem& item) const
{
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	if (!node)      // happens if item.IsOk()==false
		return 0;

	return atoi(node->m_extruder.c_str());
}

wxString ObjectDataViewModel::GetColumnType(unsigned int col) const
{
    if (col == colName || col == colFilament)
        return wxT("DataViewBitmapText");
    // BBS
    if (/*col == colPrint || */col == colEditing)
        return wxT("DataViewBitmap");
    return wxT("string");
}

void ObjectDataViewModel::GetValue(wxVariant &variant, const wxDataViewItem &item, unsigned int col) const
{
	wxASSERT(item.IsOk());

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	switch (col)
	{
	case colPrint:
		variant << node->m_printable_icon;
		break;
	case colName:
        variant << DataViewBitmapText(node->m_name, node->m_bmp);
		break;
	case colFilament:
		variant << DataViewBitmapText(node->m_extruder, node->m_extruder_bmp);
		break;
    // BBS
    case colSupportPaint:
        variant << node->m_support_icon;
        break;
    case colSinking:
        variant << node->m_sinking_icon;
        break;
    case colColorPaint:
        variant << node->m_color_icon;
        break;
	case colEditing:
		variant << node->m_action_icon;
		break;
	default:
		;
	}
}

bool ObjectDataViewModel::SetValue(const wxVariant &variant, const wxDataViewItem &item, unsigned int col)
{
	wxASSERT(item.IsOk());

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	return node->SetValue(variant, col);
}

bool ObjectDataViewModel::SetValue(const wxVariant &variant, const int item_idx, unsigned int col)
{
    if (size_t(item_idx) >= m_objects.size())
		return false;

	return m_objects[item_idx]->SetValue(variant, col);
}

void ObjectDataViewModel::SetExtruder(const wxString& extruder, wxDataViewItem item)
{
    if (!item.IsOk())
        return;

    // BBS. Don't support to set extruder for plate.
    ObjectDataViewModelNode* node = (ObjectDataViewModelNode*)item.GetID();
    if (node->GetType() & itPlate) {
        return;
    }

    node->UpdateExtruderAndColorIcon(extruder);
    if (node->GetType() == itObject)
        UpdateVolumesExtruderBitmap(item, true);

    // BBS
    ItemChanged(item);
}

bool ObjectDataViewModel::SetName(const wxString& new_name, wxDataViewItem item)
{
    if (!item.IsOk())
        return false;

    // The icon can't be edited so get its old value and reuse it.
    wxVariant valueOld;
    GetValue(valueOld, item, colName);

    DataViewBitmapText bmpText;
    bmpText << valueOld;

    // But replace the text with the value entered by user.
    bmpText.SetText(new_name);

    wxVariant value;
    value << bmpText;
    if (SetValue(value, item, colName)) {
        ItemChanged(item);
        return true;
    }
    return false;
}

void ObjectDataViewModel::OnPlateChange(const int plate_idx, wxDataViewItem item)
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());

    ObjectDataViewModelNode* parent_plate = m_plate_outside;
    for (auto plate : m_plates) {
        if (plate->m_plate_idx == plate_idx) {
            parent_plate = plate;
        }
    }

    ReparentObject(parent_plate, node);
}

void ObjectDataViewModel::AddAllChildren(const wxDataViewItem& parent)
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(parent.GetID());
    if (!node || node->GetChildCount() == 0)
        return;

    wxDataViewItemArray array;
    const size_t count = node->GetChildCount();
    for (size_t pos = 0; pos < count; pos++) {
        ObjectDataViewModelNode* child = node->GetChildren().Item(pos);
        array.Add(wxDataViewItem((void*)child));
        ItemAdded(parent, wxDataViewItem((void*)child));
    }

    for (const auto& item : array)
        AddAllChildren(item);

    m_ctrl->Expand(parent);
};

void ObjectDataViewModel::ReparentObject(ObjectDataViewModelNode* plate, ObjectDataViewModelNode* object)
{
    assert(plate != nullptr && (plate->m_type & itPlate) != 0);
    assert(object != nullptr && (object->m_type & itObject) != 0);

    ObjectDataViewModelNode* old_plate = object->m_parent;
    assert(old_plate != nullptr && (old_plate->m_type & itPlate) != 0);
    if (old_plate == plate)
        return;

    old_plate->GetChildren().Remove(object);
    ItemDeleted(wxDataViewItem(old_plate), wxDataViewItem(object));

    object->m_plate_idx = plate->m_plate_idx;
    object->m_parent = plate;
    plate->Append(object);
    ItemAdded(wxDataViewItem(plate), wxDataViewItem(object));
}

wxDataViewItem ObjectDataViewModel::ReorganizeChildren( const int current_volume_id,
                                                        const int new_volume_id,
                                                        const wxDataViewItem &parent)
{
    auto ret_item = wxDataViewItem(0);
    if (current_volume_id == new_volume_id)
        return ret_item;
    wxASSERT(parent.IsOk());
    ObjectDataViewModelNode *node_parent = static_cast<ObjectDataViewModelNode*>(parent.GetID());
    if (!node_parent)      // happens if item.IsOk()==false
        return ret_item;

    size_t shift = GetItemIndexForFirstVolume(node_parent);

    ObjectDataViewModelNode *deleted_node = node_parent->GetNthChild(current_volume_id+shift);
    node_parent->GetChildren().Remove(deleted_node);
    ItemDeleted(parent, wxDataViewItem(deleted_node));
    node_parent->Insert(deleted_node, new_volume_id+shift);
    ItemAdded(parent, wxDataViewItem(deleted_node));

    // If some item has a children, just to add a deleted item is not enough on Linux
    // We should to add all its children separately
    AddAllChildren(wxDataViewItem(deleted_node));

    //update volume_id value for child-nodes
    auto children = node_parent->GetChildren();
    int id_frst = current_volume_id < new_volume_id ? current_volume_id : new_volume_id;
    int id_last = current_volume_id > new_volume_id ? current_volume_id : new_volume_id;
    for (int id = id_frst; id <= id_last; ++id)
        children[id+shift]->SetIdx(id);

    return wxDataViewItem(node_parent->GetNthChild(new_volume_id+shift));
}

wxDataViewItem ObjectDataViewModel::ReorganizeObjects(  const int current_id, const int new_id)
{
    if (current_id == new_id)
        return wxDataViewItem(nullptr);

    ObjectDataViewModelNode* deleted_node = m_objects[current_id];
    ObjectDataViewModelNode* new_node = m_objects[new_id];
    ObjectDataViewModelNode* plate_node = deleted_node->m_parent;

    m_objects.erase(m_objects.begin() + current_id);
    plate_node->GetChildren().Remove(deleted_node);
    ItemDeleted(wxDataViewItem(deleted_node->m_parent), wxDataViewItem(deleted_node));

    m_objects.emplace(m_objects.begin() + new_id, deleted_node);
    int plate_child_index = plate_node->GetChildIndex(new_node);
    if (current_id < new_id)
        plate_node->Insert(deleted_node, plate_child_index+1);
    else {
        //should not happen
        plate_node->Insert(deleted_node, plate_child_index);
    }
    ItemAdded(wxDataViewItem(deleted_node->m_parent), wxDataViewItem(deleted_node));

    //ItemChanged(wxDataViewItem(nullptr));

    // If some item has a children, just to add a deleted item is not enough on Linux
    // We should to add all its children separately
    AddAllChildren(wxDataViewItem(deleted_node));
    return wxDataViewItem(deleted_node);
}

bool ObjectDataViewModel::IsEnabled(const wxDataViewItem &item, unsigned int col) const
{
    bool ret;

    wxASSERT(item.IsOk());
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());

    // disable extruder selection for the non "itObject|itVolume" item
    ret = !(col == colFilament && node->m_extruder.IsEmpty());
    return ret;
}

wxDataViewItem ObjectDataViewModel::GetParent(const wxDataViewItem &item) const
{
	// the invisible root node has no parent
	if (!item.IsOk())
		return wxDataViewItem(0);

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	assert(node != nullptr && node->valid());

	// objects nodes has no parent too
    if (node->m_type == itPlate)
		return wxDataViewItem(0);

	return wxDataViewItem((void*)node->GetParent());
}

wxDataViewItem ObjectDataViewModel::GetObject(const wxDataViewItem& item) const
{
    // the invisible root node has no parent
    if (!item.IsOk())
        return wxDataViewItem(0);

    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (node->m_type & itPlate)
        return wxDataViewItem(0);

    if (node->m_type & itObject)
        return item;

    ObjectDataViewModelNode* parent_node = node->GetParent();
    while (parent_node->m_type != itObject)
        parent_node = parent_node->GetParent();

    return wxDataViewItem((void*)parent_node);
}

wxDataViewItem ObjectDataViewModel::GetTopParent(const wxDataViewItem &item) const
{
	// the invisible root node has no parent
	if (!item.IsOk())
		return wxDataViewItem(0);

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (node->m_type == itPlate)
        return item;

    ObjectDataViewModelNode *parent_node = node->GetParent();
    while (parent_node->m_type != itPlate)
        parent_node = parent_node->GetParent();

    return wxDataViewItem((void*)parent_node);
}

bool ObjectDataViewModel::IsContainer(const wxDataViewItem &item) const
{
	// the invisible root node can have children
	if (!item.IsOk())
		return true;

	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
	return node->IsContainer();
}

unsigned int ObjectDataViewModel::GetChildren(const wxDataViewItem &parent, wxDataViewItemArray &array) const
{
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(parent.GetID());
	if (!node)
	{
        int node_count = 0;
        for (auto plate : m_plates)
            array.Add(wxDataViewItem((void*)plate));
        node_count += m_plates.size();
        /* FIX: should only return first layer children
        for (auto object : m_objects) {
            if (object->GetParent() == nullptr) {
                array.Add(wxDataViewItem((void*)object));
                node_count++;
            }
        }*/
        return node_count++;
	}

	if (node->GetChildCount() == 0)
	{
		return 0;
	}

    unsigned int count = node->GetChildren().GetCount();
    for (unsigned int pos = 0; pos < count; pos++)
    {
        ObjectDataViewModelNode* child = node->GetChildren().Item(pos);
        array.Add(wxDataViewItem((void*)child));
    }

    return count;
}

void ObjectDataViewModel::GetAllChildren(const wxDataViewItem &parent, wxDataViewItemArray &array) const
{
	ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(parent.GetID());
	if (!node) {
        for (auto plate : m_plates)
            array.Add(wxDataViewItem((void*)plate));
	}
	else if (node->GetChildCount() == 0)
		return;
    else {
        const size_t count = node->GetChildren().GetCount();
        for (size_t pos = 0; pos < count; pos++) {
            ObjectDataViewModelNode *child = node->GetChildren().Item(pos);
            array.Add(wxDataViewItem((void*)child));
        }
    }

    wxDataViewItemArray new_array = array;
    for (const auto& item : new_array)
    {
        wxDataViewItemArray children;
        GetAllChildren(item, children);
        WX_APPEND_ARRAY(array, children);
    }
}

bool ObjectDataViewModel::HasInfoItem(InfoItemType type) const
{
    for (ObjectDataViewModelNode* obj_node : m_objects)
        for (size_t j = 0; j < obj_node->GetChildCount(); j++)
            if (obj_node->GetNthChild(j)->GetInfoItemType() == type)
                return true;

    return false;
}

ItemType ObjectDataViewModel::GetItemType(const wxDataViewItem &item) const
{
    if (!item.IsOk()) 
        return itUndef;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode *>(item.GetID());
    return node->m_type < 0 ? itUndef : node->m_type;
}

ItemType ObjectDataViewModel::GetItemType(const wxDataViewItem &item, int &plate_idx) const
{
    if (!item.IsOk())
        return itUndef;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    plate_idx=node->m_plate_idx;
    return node->m_type < 0 ? itUndef : node->m_type;
}

InfoItemType ObjectDataViewModel::GetInfoItemType(const wxDataViewItem &item) const
{
    if (!item.IsOk())
        return InfoItemType::Undef;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    return node->m_info_item_type;
}

wxDataViewItem ObjectDataViewModel::GetItemByType(const wxDataViewItem &parent_item, ItemType type) const
{
    if (!parent_item.IsOk())
        return wxDataViewItem(0);

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    if (node->GetChildCount() == 0)
        return wxDataViewItem(0);

    for (size_t i = 0; i < node->GetChildCount(); i++) {
        if (node->GetNthChild(i)->m_type == type)
            return wxDataViewItem((void*)node->GetNthChild(i));
    }

    return wxDataViewItem(0);
}

wxDataViewItem ObjectDataViewModel::GetSettingsItem(const wxDataViewItem &item) const
{
    return GetItemByType(item, itSettings);
}

wxDataViewItem ObjectDataViewModel::GetInstanceRootItem(const wxDataViewItem &item) const
{
    return GetItemByType(item, itInstanceRoot);
}

wxDataViewItem ObjectDataViewModel::GetLayerRootItem(const wxDataViewItem &item) const
{
    return GetItemByType(item, itLayerRoot);
}


wxDataViewItem  ObjectDataViewModel::GetObjectItem(const ModelObject* mo) const
{
    for (auto object_node : m_objects) {
        if (object_node->m_model_object == mo) {
            return wxDataViewItem(object_node);
        }
    }

    return wxDataViewItem(nullptr);
}

wxDataViewItem  ObjectDataViewModel::GetVolumeItem(const wxDataViewItem& parent, int vol_idx) const
{
    ObjectDataViewModelNode* obj_node = (ObjectDataViewModelNode*)parent.GetID();

    // BBS
    if (obj_node != nullptr) {
        for (auto child : obj_node->GetChildren()) {
            if (child->GetType() == itVolume && child->GetIdx() == vol_idx)
                return wxDataViewItem(child);
        }
    }

    return wxDataViewItem(nullptr);
}

wxDataViewItem ObjectDataViewModel::GetInfoItemByType(const wxDataViewItem &parent_item, InfoItemType type) const
{
    if (! parent_item.IsOk())
        return wxDataViewItem(0);

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(parent_item.GetID());
    for (size_t i = 0; i < node->GetChildCount(); i++) {
        const ObjectDataViewModelNode* child_node = node->GetNthChild(i);
        if (child_node->m_type == itInfo && child_node->m_info_item_type == type)
            return wxDataViewItem((void*)child_node);
    }

    return wxDataViewItem(0); // not found
}

bool ObjectDataViewModel::IsSettingsItem(const wxDataViewItem &item) const
{
    if (!item.IsOk())
        return false;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    return node->m_type == itSettings;
}

void ObjectDataViewModel::UpdateSettingsDigest(const wxDataViewItem &item,
                                                    const std::vector<std::string>& categories)
{
    if (!item.IsOk()) return;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node->update_settings_digest(categories))
        return;
    ItemChanged(item);
}

void ObjectDataViewModel::SetVolumeType(const wxDataViewItem &item, const Slic3r::ModelVolumeType volume_type)
{
    if (!item.IsOk() || GetItemType(item) != itVolume)
        return;

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    node->SetVolumeType(volume_type);
    node->SetBitmap(m_volume_bmps[int(volume_type)]);
    if (volume_type != Slic3r::ModelVolumeType::MODEL_PART && volume_type != Slic3r::ModelVolumeType::PARAMETER_MODIFIER)
        node->SetExtruder("");          // hide extruder
    else if (node->GetExtruder().IsEmpty())
        node->SetExtruder("default");   // show extruder ans set it to default
    node->UpdateExtruderAndColorIcon();
    ItemChanged(item);
}

ModelVolumeType ObjectDataViewModel::GetVolumeType(const wxDataViewItem& item)
{
    if (!item.IsOk() || GetItemType(item) != itVolume)
        return ModelVolumeType::INVALID;

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    return node->GetVolumeType();
}

wxDataViewItem ObjectDataViewModel::SetPrintableState(
    PrintIndicator  printable,
    int             obj_idx,
    int             subobj_idx /* = -1*/,
    ItemType        subobj_type/* = itInstance*/)
{
    wxDataViewItem item = wxDataViewItem(0);
    if (subobj_idx < 0)
        item = GetItemById(obj_idx);
    else
        item =  subobj_type&itInstance ? GetItemByInstanceId(obj_idx, subobj_idx) :
                GetItemByVolumeId(obj_idx, subobj_idx);

    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node)
        return wxDataViewItem(0);
    node->set_printable_icon(printable);
    ItemChanged(item);

    if (subobj_idx >= 0)
        UpdateObjectPrintable(GetItemById(obj_idx));

    return item;
}

wxDataViewItem ObjectDataViewModel::SetObjectPrintableState(
    PrintIndicator  printable,
    wxDataViewItem  obj_item)
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(obj_item.GetID());
    if (!node)
        return wxDataViewItem(0);
    node->set_printable_icon(printable);
    ItemChanged(obj_item);

    UpdateInstancesPrintable(obj_item);

    return obj_item;
}

bool ObjectDataViewModel::IsColorPainted(wxDataViewItem& item) const
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node)
        return false;

    return node->m_color_enable;
}

bool ObjectDataViewModel::IsSupportPainted(wxDataViewItem& item) const
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (!node)
        return false;

    return node->m_support_enable;
}

bool ObjectDataViewModel::IsSinked(wxDataViewItem &item) const
{
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode *>(item.GetID());
    if (!node) return false;

    return node->m_sink_enable;
}

void ObjectDataViewModel::SetColorPaintState(const bool painted, wxDataViewItem obj_item)
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(obj_item.GetID());
    if (!node)
        return;

    node->set_color_icon(painted);
    ItemChanged(obj_item);
}

void ObjectDataViewModel::SetSupportPaintState(const bool painted, wxDataViewItem obj_item)
{
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(obj_item.GetID());
    if (!node)
        return;

    node->set_support_icon(painted);
    ItemChanged(obj_item);
}

void ObjectDataViewModel::SetSinkState(const bool painted, wxDataViewItem obj_item)
{
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode *>(obj_item.GetID());
    if (!node) return;

    node->set_sinking_icon(painted);
    ItemChanged(obj_item);
}

void ObjectDataViewModel::Rescale()
{
    m_volume_bmps = MenuFactory::get_volume_bitmaps();
    m_text_volume_bmps = MenuFactory::get_text_volume_bitmaps();
    m_svg_volume_bmps = MenuFactory::get_svg_volume_bitmaps();
    m_warning_bmp = create_scaled_bitmap(WarningIcon);
    m_warning_manifold_bmp = create_scaled_bitmap(WarningManifoldIcon);
    m_lock_bmp = create_scaled_bitmap(LockIcon);

    for (auto item : INFO_ITEMS)
        m_info_bmps[item.first] = create_scaled_bitmap(item.second.bmp_name);

    wxDataViewItemArray all_items;
    GetAllChildren(wxDataViewItem(0), all_items);

    for (wxDataViewItem item : all_items)
    {
        if (!item.IsOk())
            continue;

        ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
        node->msw_rescale();

        switch (node->m_type)
        {
        case itObject:
        case itVolume:
            UpdateBitmapForNode(node);
            break;
        case itLayerRoot:
            node->m_bmp = create_scaled_bitmap(LayerRootIcon);
            break;
        case itLayer:
            node->m_bmp = create_scaled_bitmap(LayerIcon);
            break;
        case itInfo:
            node->m_bmp = m_info_bmps.at(node->m_info_item_type);
            break;
        default: break;
        }

        ItemChanged(item);
    }
}

void ObjectDataViewModel::AddWarningIcon(const wxDataViewItem& item, const std::string& warning_icon_name)
{
    if (!item.IsOk())
        return;
    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());

    if (node->GetType() & itObject) {
        UpdateBitmapForNode(node, warning_icon_name, node->has_lock());
        return;
    }

    if (node->GetType() & itVolume) {
        UpdateBitmapForNode(node, warning_icon_name, node->has_lock());
        if (ObjectDataViewModelNode* parent = node->GetParent())
            UpdateBitmapForNode(parent, warning_icon_name, parent->has_lock());
        return;
    }
}

void ObjectDataViewModel::DeleteWarningIcon(const wxDataViewItem& item, const bool unmark_object/* = false*/)
{
    if (!item.IsOk())
        return;

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());

    if (!node->GetBitmap().IsOk() || !(node->GetType() & (itVolume | itObject)))
        return;

    node->SetWarningIconName(std::string());
    UpdateBitmapForNode(node);

    if (unmark_object)
    {
        wxDataViewItemArray children;
        GetChildren(item, children);
        for (const wxDataViewItem& child : children)
            DeleteWarningIcon(child);
    }
}

bool ObjectDataViewModel::HasWarningIcon(const wxDataViewItem& item) const
{
    if (!item.IsOk())
        return false;

    ObjectDataViewModelNode *node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    return node->has_warning_icon();
}

void ObjectDataViewModel::UpdateWarningIcon(const wxDataViewItem& item, const std::string& warning_icon_name)
{
    if (warning_icon_name.empty())
        DeleteWarningIcon(item, true);
    else
        AddWarningIcon(item, warning_icon_name);
}

void ObjectDataViewModel::UpdateCutObjectIcon(const wxDataViewItem &item, bool has_lock)
{
    if (!item.IsOk())
        return;
    ObjectDataViewModelNode* node = static_cast<ObjectDataViewModelNode*>(item.GetID());
    if (node->has_lock() == has_lock)
        return;

    node->SetLock(has_lock);
    UpdateBitmapForNode(node);

    if (node->GetType() & itObject) {
        wxDataViewItemArray children;
        GetChildren(item, children);
        for (const wxDataViewItem &child : children)
            UpdateCutObjectIcon(child, has_lock);
    }
    ItemChanged(item);
}

} // namespace GUI
} // namespace Slic3r