AtomicGameEngine/Source/ThirdParty/easy_profiler/profiler_gui/easy_graphics_item.cpp

/************************************************************************
* file name         : easy_graphics_item.cpp
* ----------------- :
* creation time     : 2016/09/15
* author            : Victor Zarubkin
* email             : [email protected]
* ----------------- :
* description       : The file contains implementation of EasyGraphicsItem.
* ----------------- :
* change log        : * 2016/09/15 Victor Zarubkin: Moved sources from blocks_graphics_view.cpp
*                   :
*                   : * 
* ----------------- :
* license           : Lightweight profiler library for c++
*                   : Copyright(C) 2016-2017  Sergey Yagovtsev, Victor Zarubkin
*                   :
*                   : Licensed under either of
*                   :     * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
*                   :     * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
*                   : at your option.
*                   :
*                   : The MIT License
*                   :
*                   : Permission is hereby granted, free of charge, to any person obtaining a copy
*                   : of this software and associated documentation files (the "Software"), to deal
*                   : in the Software without restriction, including without limitation the rights
*                   : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
*                   : of the Software, and to permit persons to whom the Software is furnished
*                   : to do so, subject to the following conditions:
*                   :
*                   : The above copyright notice and this permission notice shall be included in all
*                   : copies or substantial portions of the Software.
*                   :
*                   : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
*                   : INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
*                   : PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
*                   : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
*                   : TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
*                   : USE OR OTHER DEALINGS IN THE SOFTWARE.
*                   :
*                   : 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
*                   :
*                   : Unless required by applicable law or agreed to in writing, software
*                   : distributed under the License is distributed on an "AS IS" BASIS,
*                   : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*                   : See the License for the specific language governing permissions and
*                   : limitations under the License.
************************************************************************/

#include <QGraphicsScene>
#include <QDebug>
#include <algorithm>
#include "easy_graphics_item.h"
#include "blocks_graphics_view.h"
#include "globals.h"

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

enum BlockItemState : int8_t
{
    BLOCK_ITEM_DO_PAINT_FIRST = -2,
    BLOCK_ITEM_DO_NOT_PAINT = -1,
    BLOCK_ITEM_UNCHANGED,
    BLOCK_ITEM_DO_PAINT
};

//////////////////////////////////////////////////////////////////////////

const int MIN_SYNC_SPACING = 1;
const int MIN_SYNC_SIZE = 3;
const QRgb BORDERS_COLOR = ::profiler::colors::Grey600 & 0x00ffffff;// 0x00686868;

inline QRgb selectedItemBorderColor(::profiler::color_t _color) {
    return ::profiler_gui::isLightColor(_color, 192) ? ::profiler::colors::Black : ::profiler::colors::RichRed;
}

const QPen HIGHLIGHTER_PEN = ([]() -> QPen { QPen p(::profiler::colors::Black); p.setStyle(Qt::DotLine); p.setWidth(2); return p; })();
const auto ITEMS_FONT = ::profiler_gui::EFont("Helvetica", 10, QFont::Medium);
const auto SELECTED_ITEM_FONT = ::profiler_gui::EFont("Helvetica", 10, QFont::Bold);

#ifdef max
#undef max
#endif

#ifdef min
#undef min
#endif

//////////////////////////////////////////////////////////////////////////

EasyGraphicsItem::EasyGraphicsItem(uint8_t _index, const::profiler::BlocksTreeRoot& _root)
    : QGraphicsItem(nullptr)
    , m_threadName(::profiler_gui::decoratedThreadName(EASY_GLOBALS.use_decorated_thread_name, _root, EASY_GLOBALS.hex_thread_id))
    , m_pRoot(&_root)
    , m_index(_index)
{
}

EasyGraphicsItem::~EasyGraphicsItem()
{
}

void EasyGraphicsItem::validateName()
{
    m_threadName = ::profiler_gui::decoratedThreadName(EASY_GLOBALS.use_decorated_thread_name, *m_pRoot, EASY_GLOBALS.hex_thread_id);
}

const EasyGraphicsView* EasyGraphicsItem::view() const
{
    return static_cast<const EasyGraphicsView*>(scene()->parent());
}

//////////////////////////////////////////////////////////////////////////

QRectF EasyGraphicsItem::boundingRect() const
{
    return m_boundingRect;
}

//////////////////////////////////////////////////////////////////////////

struct EasyPainterInformation EASY_FINAL
{
    const QRectF visibleSceneRect;
    QRectF rect;
    QBrush brush;
    const qreal visibleBottom;
    const qreal currentScale;
    const qreal offset;
    const qreal sceneLeft;
    const qreal sceneRight;
    const qreal dx;
    QRgb previousColor;
    QRgb textColor;
    Qt::PenStyle previousPenStyle;
    bool is_light;
    bool selectedItemsWasPainted;

    explicit EasyPainterInformation(const EasyGraphicsView* sceneView)
        : visibleSceneRect(sceneView->visibleSceneRect())
        , visibleBottom(visibleSceneRect.bottom() - 1)
        , currentScale(sceneView->scale())
        , offset(sceneView->offset())
        , sceneLeft(offset)
        , sceneRight(offset + visibleSceneRect.width() / currentScale)
        , dx(offset * currentScale)
        , previousColor(0)
        , textColor(0)
        , previousPenStyle(Qt::NoPen)
        , is_light(false)
        , selectedItemsWasPainted(false)
    {
        brush.setStyle(Qt::SolidPattern);
    }

    EasyPainterInformation() = delete;
};

#ifdef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
void EasyGraphicsItem::paintChildren(const float _minWidth, const int _narrowSizeHalf, const uint8_t _levelsNumber, QPainter* _painter, struct EasyPainterInformation& p, ::profiler_gui::EasyBlockItem& _item, const ::profiler_gui::EasyBlock& _itemBlock, RightBounds& _rightBounds, uint8_t _level, int8_t _mode)
{
    if (_level >= _levelsNumber || _itemBlock.tree.children.empty())
        return;

    const auto top = levelY(_level);
    if (top > p.visibleBottom)
        return;

    qreal& prevRight = _rightBounds[_level];
    auto& level = m_levels[_level];
    const short next_level = _level + 1;

    uint32_t neighbours = (uint32_t)_itemBlock.tree.children.size();
    uint32_t last = neighbours - 1;
    uint32_t neighbour = 0;

    if (_mode == BLOCK_ITEM_DO_PAINT_FIRST)
    {
        neighbour = last = _item.max_depth_child;
        neighbours = neighbour + 1;
    }

    for (uint32_t i = _item.children_begin + neighbour; neighbour < neighbours; ++i, ++neighbour)
    {
        auto& item = level[i];

        if (item.left() > p.sceneRight)
            break; // This is first totally invisible item. No need to check other items.

        if (item.right() < p.sceneLeft)
            continue; // This item is not visible

        const auto& itemBlock = easyBlock(item.block);
        const uint16_t totalHeight = itemBlock.tree.depth * ::profiler_gui::GRAPHICS_ROW_SIZE_FULL + ::profiler_gui::GRAPHICS_ROW_SIZE;
        if ((top + totalHeight) < p.visibleSceneRect.top())
            continue; // This item is not visible

        const auto item_width = ::std::max(item.width(), _minWidth);
        auto x = item.left() * p.currentScale - p.dx;
        auto w = item_width * p.currentScale;
        //const auto right = x + w;
        if ((x + w) <= prevRight)
        {
            // This item is not visible
            if (!(EASY_GLOBALS.hide_narrow_children && w < EASY_GLOBALS.blocks_narrow_size))
                paintChildren(_minWidth, _narrowSizeHalf, _levelsNumber, _painter, p, item, itemBlock, _rightBounds, next_level, BLOCK_ITEM_DO_PAINT_FIRST);
            continue;
        }

        if (x < prevRight)
        {
            w -= prevRight - x;
            x = prevRight;
        }

        if (EASY_GLOBALS.hide_minsize_blocks && w < EASY_GLOBALS.blocks_size_min)
            continue; // Hide blocks (except top-level blocks) which width is less than 1 pixel

        const auto& itemDesc = easyDescriptor(itemBlock.tree.node->id());

        int h = 0, flags = 0;
        bool do_paint_children = false;
        if ((EASY_GLOBALS.hide_narrow_children && w < EASY_GLOBALS.blocks_narrow_size) || !itemBlock.expanded)
        {
            // Items which width is less than 20 will be painted as big rectangles which are hiding it's children

            //x = item.left() * p.currentScale - p.dx;
            h = totalHeight;
            const auto dh = top + h - p.visibleBottom;
            if (dh > 0)
                h -= dh;

            if (item.block == EASY_GLOBALS.selected_block)
                p.selectedItemsWasPainted = true;

            const bool colorChange = (p.previousColor != itemDesc.color());
            if (colorChange)
            {
                // Set background color brush for rectangle
                p.previousColor = itemDesc.color();
                //p.inverseColor = 0xffffffff - p.previousColor;
                p.is_light = ::profiler_gui::isLightColor(p.previousColor);
                p.textColor = ::profiler_gui::textColorForFlag(p.is_light);
                p.brush.setColor(p.previousColor);
                _painter->setBrush(p.brush);
            }

            if (EASY_GLOBALS.highlight_blocks_with_same_id && (EASY_GLOBALS.selected_block_id == itemBlock.tree.node->id()
                || (::profiler_gui::is_max(EASY_GLOBALS.selected_block) && EASY_GLOBALS.selected_block_id == itemDesc.id())))
            {
                if (p.previousPenStyle != Qt::DotLine)
                {
                    p.previousPenStyle = Qt::DotLine;
                    _painter->setPen(HIGHLIGHTER_PEN);
                }
            }
            else if (EASY_GLOBALS.draw_graphics_items_borders)
            {
                if (p.previousPenStyle != Qt::SolidLine)// || colorChange)
                {
                    // Restore pen for item which is wide enough to paint borders
                    p.previousPenStyle = Qt::SolidLine;
                    _painter->setPen(BORDERS_COLOR);//BORDERS_COLOR & inverseColor);
                }
            }
            else if (p.previousPenStyle != Qt::NoPen)
            {
                p.previousPenStyle = Qt::NoPen;
                _painter->setPen(Qt::NoPen);
            }

            const auto wprev = w;
            decltype(w) dw = 0;
            if (item.left() < p.sceneLeft)
            {
                // if item left border is out of screen then attach text to the left border of the screen
                // to ensure text is always visible for items presenting on the screen.
                w += (item.left() - p.sceneLeft) * p.currentScale;
                x = p.sceneLeft * p.currentScale - p.dx - 2;
                w += 2;
                dw = 2;
            }

            if (item.right() > p.sceneRight)
            {
                w -= (item.right() - p.sceneRight) * p.currentScale;
                w += 2;
                dw += 2;
            }

            if (w < EASY_GLOBALS.blocks_size_min)
                w = EASY_GLOBALS.blocks_size_min;

            // Draw rectangle
            p.rect.setRect(x, top, w, h);
            _painter->drawRect(p.rect);

            prevRight = p.rect.right() + EASY_GLOBALS.blocks_spacing;
            //skip_children(next_level, item.children_begin);
            if (wprev < EASY_GLOBALS.blocks_narrow_size)
                continue;

            if (totalHeight > ::profiler_gui::GRAPHICS_ROW_SIZE)
                flags = Qt::AlignCenter;
            else if (!(item.width() < 1))
                flags = Qt::AlignHCenter;

            if (dw > 1)
            {
                w -= dw;
                x += 2;
            }
        }
        else
        {
            if (item.block == EASY_GLOBALS.selected_block)
                p.selectedItemsWasPainted = true;

            const bool colorChange = (p.previousColor != itemDesc.color());
            if (colorChange)
            {
                // Set background color brush for rectangle
                p.previousColor = itemDesc.color();
                //p.inverseColor = 0xffffffff - p.previousColor;
                p.is_light = ::profiler_gui::isLightColor(p.previousColor);
                p.textColor = ::profiler_gui::textColorForFlag(p.is_light);
                p.brush.setColor(p.previousColor);
                _painter->setBrush(p.brush);
            }

            if (EASY_GLOBALS.highlight_blocks_with_same_id && (EASY_GLOBALS.selected_block_id == itemBlock.tree.node->id()
                || (::profiler_gui::is_max(EASY_GLOBALS.selected_block) && EASY_GLOBALS.selected_block_id == itemDesc.id())))
            {
                if (p.previousPenStyle != Qt::DotLine)
                {
                    p.previousPenStyle = Qt::DotLine;
                    _painter->setPen(HIGHLIGHTER_PEN);
                }
            }
            else if (EASY_GLOBALS.draw_graphics_items_borders)
            {
                if (p.previousPenStyle != Qt::SolidLine)// || colorChange)
                {
                    // Restore pen for item which is wide enough to paint borders
                    p.previousPenStyle = Qt::SolidLine;
                    _painter->setPen(BORDERS_COLOR);// BORDERS_COLOR & inverseColor);
                }
            }
            else if (p.previousPenStyle != Qt::NoPen)
            {
                p.previousPenStyle = Qt::NoPen;
                _painter->setPen(Qt::NoPen);
            }

            // Draw rectangle
            //x = item.left() * currentScale - p.dx;
            h = ::profiler_gui::GRAPHICS_ROW_SIZE;
            const auto dh = top + h - p.visibleBottom;
            if (dh > 0)
                h -= dh;

            const auto wprev = w;
            decltype(w) dw = 0;
            if (item.left() < p.sceneLeft)
            {
                // if item left border is out of screen then attach text to the left border of the screen
                // to ensure text is always visible for items presenting on the screen.
                w += (item.left() - p.sceneLeft) * p.currentScale;
                x = p.sceneLeft * p.currentScale - p.dx - 2;
                w += 2;
                dw = 2;
            }

            if (item.right() > p.sceneRight)
            {
                w -= (item.right() - p.sceneRight) * p.currentScale;
                w += 2;
                dw += 2;
            }

            if (w < EASY_GLOBALS.blocks_size_min)
                w = EASY_GLOBALS.blocks_size_min;

            p.rect.setRect(x, top, w, h);
            _painter->drawRect(p.rect);

            prevRight = p.rect.right() + EASY_GLOBALS.blocks_spacing;
            if (wprev < EASY_GLOBALS.blocks_narrow_size)
            {
                paintChildren(_minWidth, _narrowSizeHalf, _levelsNumber, _painter, p, item, itemBlock, _rightBounds, next_level, wprev < _narrowSizeHalf ? BLOCK_ITEM_DO_PAINT_FIRST : BLOCK_ITEM_DO_PAINT);
                continue;
            }

            if (!(item.width() < 1))
                flags = Qt::AlignHCenter;

            if (dw > 1)
            {
                w -= dw;
                x += 2;
            }

            do_paint_children = true;
        }

        // Draw text-----------------------------------
        p.rect.setRect(x + 1, top, w - 1, h);

        // text will be painted with inverse color
        //auto textColor = inverseColor < 0x00808080 ? profiler::colors::Black : profiler::colors::White;
        //if (textColor == previousColor) textColor = 0;
        _painter->setPen(p.textColor);

        if (item.block == EASY_GLOBALS.selected_block)
            _painter->setFont(SELECTED_ITEM_FONT);

        // drawing text
        auto name = *itemBlock.tree.node->name() != 0 ? itemBlock.tree.node->name() : itemDesc.name();
        _painter->drawText(p.rect, flags, ::profiler_gui::toUnicode(name));

        // restore previous pen color
        if (p.previousPenStyle == Qt::NoPen)
            _painter->setPen(Qt::NoPen);
        else if (p.previousPenStyle == Qt::DotLine)
        {
            _painter->setPen(HIGHLIGHTER_PEN);
        }
        else
            _painter->setPen(BORDERS_COLOR);// BORDERS_COLOR & inverseColor); // restore pen for rectangle painting

        // restore font
        if (item.block == EASY_GLOBALS.selected_block)
            _painter->setFont(ITEMS_FONT);
        // END Draw text~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        if (do_paint_children)
            paintChildren(_minWidth, _narrowSizeHalf, _levelsNumber, _painter, p, item, itemBlock, _rightBounds, next_level, _mode);
    }
}
#endif

void EasyGraphicsItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem*, QWidget*)
{
    const bool gotItems = !m_levels.empty() && !m_levels.front().empty();
    const bool gotSync = !m_pRoot->sync.empty();

    if (!gotItems && !gotSync)
    {
        return;
    }

    EasyPainterInformation p(view());

    _painter->save();
    _painter->setFont(ITEMS_FONT);
    
    // Reset indices of first visible item for each layer
    const auto levelsNumber = levels();
    m_rightBounds[0] = -1e100;
    for (uint8_t i = 1; i < levelsNumber; ++i) {
        ::profiler_gui::set_max(m_levelsIndexes[i]);
        m_rightBounds[i] = -1e100;
    }


    // Search for first visible top-level item
    if (gotItems)
    {
        auto& level0 = m_levels.front();
        auto first = ::std::lower_bound(level0.begin(), level0.end(), p.sceneLeft, [](const ::profiler_gui::EasyBlockItem& _item, qreal _value)
        {
            return _item.left() < _value;
        });

        if (first != level0.end())
        {
            m_levelsIndexes[0] = first - level0.begin();
            if (m_levelsIndexes[0] > 0)
                m_levelsIndexes[0] -= 1;
        }
        else
        {
            m_levelsIndexes[0] = static_cast<unsigned int>(level0.size() - 1);
        }
    }



    // This is to make _painter->drawText() work properly
    // (it seems there is a bug in Qt5.6 when drawText called for big coordinates,
    // drawRect at the same time called for actually same coordinates
    // works fine without using this additional shifting)
    //const auto dx = p.offset * p.currentScale;

    // Shifting coordinates to current screen offset
    _painter->setTransform(QTransform::fromTranslate(0, -y()), true);



    if (EASY_GLOBALS.draw_graphics_items_borders)
    {
        p.previousPenStyle = Qt::SolidLine;
        _painter->setPen(BORDERS_COLOR);
    }
    else
    {
        _painter->setPen(Qt::NoPen);
    }


    const auto MIN_WIDTH = EASY_GLOBALS.enable_zero_length ? 0.f : 0.25f;


    // Iterate through layers and draw visible items
    if (gotItems)
    {
        const int narrow_size_half = EASY_GLOBALS.blocks_narrow_size >> 1;

#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
        static const auto MAX_CHILD_INDEX = ::profiler_gui::numeric_max<decltype(::profiler_gui::EasyBlockItem::children_begin)>();
        auto const dont_skip_children = [this, &levelsNumber](short next_level, decltype(::profiler_gui::EasyBlockItem::children_begin) children_begin, int8_t _state)
        {
            if (next_level < levelsNumber && children_begin != MAX_CHILD_INDEX)
            {
                if (m_levelsIndexes[next_level] == MAX_CHILD_INDEX)
                {
                    // Mark first potentially visible child item on next sublevel
                    m_levelsIndexes[next_level] = children_begin;
                }

                // Mark children items that we want to draw them
                m_levels[next_level][children_begin].state = _state;
            }
        };
#endif

        //size_t iterations = 0;
#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
        for (uint8_t l = 0; l < levelsNumber; ++l)
#else
        for (uint8_t l = 0; l < 1; ++l)
#endif
        {
            auto& level = m_levels[l];
            const short next_level = l + 1;

            const auto top = levelY(l);
            if (top > p.visibleBottom)
                break;

            //qreal& prevRight = m_rightBounds[l];
            qreal prevRight = -1e100;
            uint32_t neighbour = 0;
            for (uint32_t i = m_levelsIndexes[l], end = static_cast<uint32_t>(level.size()); i < end; ++i, ++neighbour)
            {
                //++iterations;

                auto& item = level[i];

                if (item.left() > p.sceneRight)
                    break; // This is first totally invisible item. No need to check other items.

#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                char state = BLOCK_ITEM_DO_PAINT;
                if (item.state != BLOCK_ITEM_UNCHANGED)
                {
                    neighbour = 0; // first block in parent's children list
                    state = item.state;
                    item.state = BLOCK_ITEM_DO_NOT_PAINT;
                }
#endif

                if (item.right() < p.sceneLeft)
                    continue; // This item is not visible

#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                if (state == BLOCK_ITEM_DO_NOT_PAINT)
                {
                    // This item is not visible
                    if (neighbour < item.neighbours)
                        i += item.neighbours - neighbour - 1; // Skip all neighbours
                    continue;
                }

                if (state == BLOCK_ITEM_DO_PAINT_FIRST && item.children_begin == MAX_CHILD_INDEX && next_level < levelsNumber && neighbour < (item.neighbours-1))
                    // Paint only first child which has own children
                    continue; // This item has no children and would not be painted
#endif

                const auto& itemBlock = easyBlock(item.block);
                const uint16_t totalHeight = itemBlock.tree.depth * ::profiler_gui::GRAPHICS_ROW_SIZE_FULL + ::profiler_gui::GRAPHICS_ROW_SIZE;
                if ((top + totalHeight) < p.visibleSceneRect.top())
                    continue; // This item is not visible

                const auto item_width = ::std::max(item.width(), MIN_WIDTH);
                auto x = item.left() * p.currentScale - p.dx;
                auto w = item_width * p.currentScale;
                if ((x + w) <= prevRight)
                {
                    // This item is not visible
#ifdef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                    if (!EASY_GLOBALS.hide_narrow_children || w >= EASY_GLOBALS.blocks_narrow_size)
                        paintChildren(MIN_WIDTH, narrow_size_half, levelsNumber, _painter, p, item, itemBlock, m_rightBounds, next_level, BLOCK_ITEM_DO_PAINT_FIRST);
#else
                    if (!(EASY_GLOBALS.hide_narrow_children && w < EASY_GLOBALS.blocks_narrow_size) && l > 0)
                        dont_skip_children(next_level, item.children_begin, BLOCK_ITEM_DO_PAINT_FIRST);
#endif
                    continue;
                }

                if (x < prevRight)
                {
                    w -= prevRight - x;
                    x = prevRight;
                }

#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                if (EASY_GLOBALS.hide_minsize_blocks && w < EASY_GLOBALS.blocks_size_min && l > 0)
                    continue; // Hide blocks (except top-level blocks) which width is less than 1 pixel

                if (state == BLOCK_ITEM_DO_PAINT_FIRST && neighbour < item.neighbours)
                {
                    // Paint only first child which has own children
                    i += item.neighbours - neighbour - 1; // Skip all neighbours
                }
#endif

                const auto& itemDesc = easyDescriptor(itemBlock.tree.node->id());
                int h = 0, flags = 0;

#ifdef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                bool do_paint_children = false;
#endif

                if ((EASY_GLOBALS.hide_narrow_children && w < EASY_GLOBALS.blocks_narrow_size) || !itemBlock.expanded)
                {
                    // Items which width is less than 20 will be painted as big rectangles which are hiding it's children

                    //x = item.left() * p.currentScale - p.dx;
                    h = totalHeight;
                    const auto dh = top + h - p.visibleBottom;
                    if (dh > 0)
                        h -= dh;

                    if (item.block == EASY_GLOBALS.selected_block)
                        p.selectedItemsWasPainted = true;

                    const bool colorChange = (p.previousColor != itemDesc.color());
                    if (colorChange)
                    {
                        // Set background color brush for rectangle
                        p.previousColor = itemDesc.color();
                        //p.inverseColor = 0xffffffff - p.previousColor;
                        p.is_light = ::profiler_gui::isLightColor(p.previousColor);
                        p.textColor = ::profiler_gui::textColorForFlag(p.is_light);
                        p.brush.setColor(p.previousColor);
                        _painter->setBrush(p.brush);
                    }

                    if (EASY_GLOBALS.highlight_blocks_with_same_id && (EASY_GLOBALS.selected_block_id == itemBlock.tree.node->id()
                        || (::profiler_gui::is_max(EASY_GLOBALS.selected_block) && EASY_GLOBALS.selected_block_id == itemDesc.id())))
                    {
                        if (p.previousPenStyle != Qt::DotLine)
                        {
                            p.previousPenStyle = Qt::DotLine;
                            _painter->setPen(HIGHLIGHTER_PEN);
                        }
                    }
                    else if (EASY_GLOBALS.draw_graphics_items_borders)
                    {
                        if (p.previousPenStyle != Qt::SolidLine)// || colorChange)
                        {
                            // Restore pen for item which is wide enough to paint borders
                            p.previousPenStyle = Qt::SolidLine;
                            _painter->setPen(BORDERS_COLOR);//BORDERS_COLOR & inverseColor);
                        }
                    }
                    else if (p.previousPenStyle != Qt::NoPen)
                    {
                        p.previousPenStyle = Qt::NoPen;
                        _painter->setPen(Qt::NoPen);
                    }

                    const auto wprev = w;
                    decltype(w) dw = 0;
                    if (item.left() < p.sceneLeft)
                    {
                        // if item left border is out of screen then attach text to the left border of the screen
                        // to ensure text is always visible for items presenting on the screen.
                        w += (item.left() - p.sceneLeft) * p.currentScale;
                        x = p.sceneLeft * p.currentScale - p.dx - 2;
                        w += 2;
                        dw = 2;
                    }

                    if (item.right() > p.sceneRight)
                    {
                        w -= (item.right() - p.sceneRight) * p.currentScale;
                        w += 2;
                        dw += 2;
                    }

                    if (w < EASY_GLOBALS.blocks_size_min)
                        w = EASY_GLOBALS.blocks_size_min;

                    // Draw rectangle
                    p.rect.setRect(x, top, w, h);
                    _painter->drawRect(p.rect);

                    prevRight = p.rect.right() + EASY_GLOBALS.blocks_spacing;
                    //skip_children(next_level, item.children_begin);
                    if (wprev < EASY_GLOBALS.blocks_narrow_size)
                        continue;

                    if (totalHeight > ::profiler_gui::GRAPHICS_ROW_SIZE)
                        flags = Qt::AlignCenter;
                    else if (!(item.width() < 1))
                        flags = Qt::AlignHCenter;

                    if (dw > 1) {
                        w -= dw;
                        x += 2;
                    }
                }
                else
                {
                    if (item.block == EASY_GLOBALS.selected_block)
                        p.selectedItemsWasPainted = true;

                    const bool colorChange = (p.previousColor != itemDesc.color());
                    if (colorChange)
                    {
                        // Set background color brush for rectangle
                        p.previousColor = itemDesc.color();
                        //p.inverseColor = 0xffffffff - p.previousColor;
                        p.is_light = ::profiler_gui::isLightColor(p.previousColor);
                        p.textColor = ::profiler_gui::textColorForFlag(p.is_light);
                        p.brush.setColor(p.previousColor);
                        _painter->setBrush(p.brush);
                    }

                    if (EASY_GLOBALS.highlight_blocks_with_same_id && (EASY_GLOBALS.selected_block_id == itemBlock.tree.node->id()
                        || (::profiler_gui::is_max(EASY_GLOBALS.selected_block) && EASY_GLOBALS.selected_block_id == itemDesc.id())))
                    {
                        if (p.previousPenStyle != Qt::DotLine)
                        {
                            p.previousPenStyle = Qt::DotLine;
                            _painter->setPen(HIGHLIGHTER_PEN);
                        }
                    }
                    else if (EASY_GLOBALS.draw_graphics_items_borders)
                    {
                        if (p.previousPenStyle != Qt::SolidLine)// || colorChange)
                        {
                            // Restore pen for item which is wide enough to paint borders
                            p.previousPenStyle = Qt::SolidLine;
                            _painter->setPen(BORDERS_COLOR);// BORDERS_COLOR & inverseColor);
                        }
                    }
                    else if (p.previousPenStyle != Qt::NoPen)
                    {
                        p.previousPenStyle = Qt::NoPen;
                        _painter->setPen(Qt::NoPen);
                    }

                    // Draw rectangle
                    //x = item.left() * currentScale - p.dx;
                    h = ::profiler_gui::GRAPHICS_ROW_SIZE;
                    const auto dh = top + h - p.visibleBottom;
                    if (dh > 0)
                        h -= dh;

                    const auto wprev = w;
                    decltype(w) dw = 0;
                    if (item.left() < p.sceneLeft)
                    {
                        // if item left border is out of screen then attach text to the left border of the screen
                        // to ensure text is always visible for items presenting on the screen.
                        w += (item.left() - p.sceneLeft) * p.currentScale;
                        x = p.sceneLeft * p.currentScale - p.dx - 2;
                        w += 2;
                        dw = 2;
                    }

                    if (item.right() > p.sceneRight)
                    {
                        w -= (item.right() - p.sceneRight) * p.currentScale;
                        w += 2;
                        dw += 2;
                    }

                    if (w < EASY_GLOBALS.blocks_size_min)
                        w = EASY_GLOBALS.blocks_size_min;

                    p.rect.setRect(x, top, w, h);
                    _painter->drawRect(p.rect);

                    prevRight = p.rect.right() + EASY_GLOBALS.blocks_spacing;
                    if (wprev < EASY_GLOBALS.blocks_narrow_size)
                    {
#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                        dont_skip_children(next_level, item.children_begin, wprev < narrow_size_half ? BLOCK_ITEM_DO_PAINT_FIRST : BLOCK_ITEM_DO_PAINT);
#else
                        paintChildren(MIN_WIDTH, narrow_size_half, levelsNumber, _painter, p, item, itemBlock, m_rightBounds, next_level, wprev < narrow_size_half ? BLOCK_ITEM_DO_PAINT_FIRST : BLOCK_ITEM_DO_PAINT);
#endif
                        continue;
                    }

#ifndef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                    dont_skip_children(next_level, item.children_begin, BLOCK_ITEM_DO_PAINT);
#endif
                    if (!(item.width() < 1))
                        flags = Qt::AlignHCenter;

                    if (dw > 1) {
                        w -= dw;
                        x += 2;
                    }

#ifdef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                    do_paint_children = true;
#endif
                }

                // Draw text-----------------------------------
                p.rect.setRect(x + 1, top, w - 1, h);

                // text will be painted with inverse color
                //auto textColor = inverseColor < 0x00808080 ? profiler::colors::Black : profiler::colors::White;
                //if (textColor == previousColor) textColor = 0;
                _painter->setPen(p.textColor);

                if (item.block == EASY_GLOBALS.selected_block)
                    _painter->setFont(SELECTED_ITEM_FONT);

                // drawing text
                auto name = *itemBlock.tree.node->name() != 0 ? itemBlock.tree.node->name() : itemDesc.name();
                _painter->drawText(p.rect, flags, ::profiler_gui::toUnicode(name));

                // restore previous pen color
                if (p.previousPenStyle == Qt::NoPen)
                    _painter->setPen(Qt::NoPen);
                else if (p.previousPenStyle == Qt::DotLine)
                {
                    _painter->setPen(HIGHLIGHTER_PEN);
                }
                else
                    _painter->setPen(BORDERS_COLOR);// BORDERS_COLOR & inverseColor); // restore pen for rectangle painting

                // restore font
                if (item.block == EASY_GLOBALS.selected_block)
                    _painter->setFont(ITEMS_FONT);
                // END Draw text~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#ifdef EASY_GRAPHICS_ITEM_RECURSIVE_PAINT
                if (do_paint_children)
                    paintChildren(MIN_WIDTH, narrow_size_half, levelsNumber, _painter, p, item, itemBlock, m_rightBounds, next_level, BLOCK_ITEM_DO_PAINT);
#endif
            }
        }

        if (EASY_GLOBALS.selected_block < EASY_GLOBALS.gui_blocks.size())
        {
            const auto& guiblock = EASY_GLOBALS.gui_blocks[EASY_GLOBALS.selected_block];
            if (guiblock.graphics_item == m_index)
            {
                const auto& item = m_levels[guiblock.graphics_item_level][guiblock.graphics_item_index];
                if (item.left() < p.sceneRight && item.right() > p.sceneLeft)
                {
                    const auto& itemBlock = easyBlock(item.block);
                    const auto item_width = ::std::max(item.width(), MIN_WIDTH);
                    auto top = levelY(guiblock.graphics_item_level);
                    auto w = ::std::max(item_width * p.currentScale, 1.0);
                    decltype(top) h = (!itemBlock.expanded ||
                                       (w < EASY_GLOBALS.blocks_narrow_size && EASY_GLOBALS.hide_narrow_children))
                                       ? (itemBlock.tree.depth * ::profiler_gui::GRAPHICS_ROW_SIZE_FULL + ::profiler_gui::GRAPHICS_ROW_SIZE)
                                       : ::profiler_gui::GRAPHICS_ROW_SIZE;

                    auto dh = top + h - p.visibleBottom;
                    if (dh < h)
                    {
                        if (dh > 0)
                            h -= dh;

                        const auto& itemDesc = easyDescriptor(itemBlock.tree.node->id());

                        QPen pen(Qt::SolidLine);
                        pen.setJoinStyle(Qt::MiterJoin);
                        pen.setColor(selectedItemBorderColor(itemDesc.color()));//Qt::red);
                        pen.setWidth(3);
                        _painter->setPen(pen);

                        if (!p.selectedItemsWasPainted)
                        {
                            p.brush.setColor(itemDesc.color());// SELECTED_ITEM_COLOR);
                            _painter->setBrush(p.brush);
                        }
                        else
                        {
                            _painter->setBrush(Qt::NoBrush);
                        }

                        auto x = item.left() * p.currentScale - p.dx;
                        decltype(w) dw = 0;
                        if (item.left() < p.sceneLeft)
                        {
                            // if item left border is out of screen then attach text to the left border of the screen
                            // to ensure text is always visible for items presenting on the screen.
                            w += (item.left() - p.sceneLeft) * p.currentScale;
                            x = p.sceneLeft * p.currentScale - p.dx - 2;
                            w += 2;
                            dw = 2;
                        }

                        if (item.right() > p.sceneRight)
                        {
                            w -= (item.right() - p.sceneRight) * p.currentScale;
                            w += 2;
                            dw += 2;
                        }

                        p.rect.setRect(x, top, w, h);
                        _painter->drawRect(p.rect);

                        if (!p.selectedItemsWasPainted && w > EASY_GLOBALS.blocks_narrow_size)
                        {
                            if (dw > 1) {
                                w -= dw;
                                x += 2;
                            }

                            // Draw text-----------------------------------
                            p.rect.setRect(x + 1, top, w - 1, h);

                            // text will be painted with inverse color
                            //auto textColor = 0x00ffffff - previousColor;
                            //if (textColor == previousColor) textColor = 0;
                            p.textColor = ::profiler_gui::textColorForRgb(itemDesc.color());// SELECTED_ITEM_COLOR);
                            _painter->setPen(p.textColor);

                            _painter->setFont(SELECTED_ITEM_FONT);

                            // drawing text
                            auto name = *itemBlock.tree.node->name() != 0 ? itemBlock.tree.node->name() : itemDesc.name();
                            _painter->drawText(p.rect, Qt::AlignCenter, ::profiler_gui::toUnicode(name));
                            // END Draw text~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                        }
                    }
                }
            }
        }

        //printf("%u: %llu\n", m_index, iterations);
    }



    if (gotSync)
    {
        const auto sceneView = view();
        auto firstSync = ::std::lower_bound(m_pRoot->sync.begin(), m_pRoot->sync.end(), p.sceneLeft, [&sceneView](::profiler::block_index_t _index, qreal _value)
        {
            return sceneView->time2position(blocksTree(_index).node->begin()) < _value;
        });

        if (firstSync != m_pRoot->sync.end())
        {
            if (firstSync != m_pRoot->sync.begin())
                --firstSync;
        }
        else if (!m_pRoot->sync.empty())
        {
            firstSync = m_pRoot->sync.begin() + m_pRoot->sync.size() - 1;
        }
        //firstSync = m_pRoot->sync.begin();

        p.previousColor = 0;
        qreal prevRight = -1e100, top = y() - 4, h = 3;
        if (top + h < p.visibleBottom)
        {
            _painter->setPen(BORDERS_COLOR);

            for (auto it = firstSync, end = m_pRoot->sync.end(); it != end; ++it)
            {
                const auto& item = blocksTree(*it);
                auto left = sceneView->time2position(item.node->begin());

                if (left > p.sceneRight)
                    break; // This is first totally invisible item. No need to check other items.

                decltype(left) width = sceneView->time2position(item.node->end()) - left;
                if (left + width < p.sceneLeft) // This item is not visible
                    continue;

                left *= p.currentScale;
                left -= p.dx;
                width *= p.currentScale;
                if (left + width <= prevRight) // This item is not visible
                    continue;

                if (left < prevRight)
                {
                    width -= prevRight - left;
                    left = prevRight;
                }

                if (width < MIN_SYNC_SIZE)
                    width = MIN_SYNC_SIZE;

                const ::profiler::thread_id_t tid = EASY_GLOBALS.version < ::profiler_gui::V130 ? item.node->id() : item.cs->tid();
                const bool self_thread = tid != 0 && EASY_GLOBALS.profiler_blocks.find(tid) != EASY_GLOBALS.profiler_blocks.end();

                ::profiler::color_t color = 0;
                if (self_thread)
                    color = ::profiler::colors::Coral;
                else if (item.node->id() == 0)
                    color = ::profiler::colors::Black;
                else
                    color = ::profiler::colors::RedA400;

                if (p.previousColor != color)
                {
                    p.previousColor = color;
                    _painter->setBrush(QColor::fromRgb(color));
                }

                p.rect.setRect(left, top, width, h);
                _painter->drawRect(p.rect);
                prevRight = left + width + MIN_SYNC_SPACING;
            }
        }
    }



    if (EASY_GLOBALS.enable_event_markers && !m_pRoot->events.empty())
    {
        const auto sceneView = view();
        auto first = ::std::lower_bound(m_pRoot->events.begin(), m_pRoot->events.end(), p.offset, [&sceneView](::profiler::block_index_t _index, qreal _value)
        {
            return sceneView->time2position(blocksTree(_index).node->begin()) < _value;
        });

        if (first != m_pRoot->events.end())
        {
            if (first != m_pRoot->events.begin())
                --first;
        }
        else if (!m_pRoot->events.empty())
        {
            first = m_pRoot->events.begin() + m_pRoot->events.size() - 1;
        }

        p.previousColor = 0;
        qreal prevRight = -1e100, top = y() + boundingRect().height() - 1, h = 3;
        if (top + h < p.visibleBottom)
        {
            _painter->setPen(BORDERS_COLOR);

            for (auto it = first, end = m_pRoot->events.end(); it != end; ++it)
            {
                const auto& item = blocksTree(*it);
                auto left = sceneView->time2position(item.node->begin());

                if (left > p.sceneRight)
                    break; // This is first totally invisible item. No need to check other items.

                decltype(left) width = MIN_WIDTH;
                if (left + width < p.sceneLeft) // This item is not visible
                    continue;

                left *= p.currentScale;
                left -= p.dx;
                width *= p.currentScale;
                if (width < 2) width = 2;

                if (left + width <= prevRight) // This item is not visible
                    continue;

                if (left < prevRight)
                {
                    width -= prevRight - left;
                    left = prevRight;
                }

                if (width < 2)
                    width = 2;

                ::profiler::color_t color = easyDescriptor(item.node->id()).color();
                if (p.previousColor != color)
                {
                    p.previousColor = color;
                    _painter->setBrush(QColor::fromRgb(color));
                }

                p.rect.setRect(left, top, width, h);
                _painter->drawRect(p.rect);
                prevRight = left + width + 2;
            }
        }
    }



    _painter->restore();
}

//////////////////////////////////////////////////////////////////////////

const ::profiler::BlocksTreeRoot* EasyGraphicsItem::root() const
{
    return m_pRoot;
}

const QString& EasyGraphicsItem::threadName() const
{
    return m_threadName;
}

//////////////////////////////////////////////////////////////////////////

QRect EasyGraphicsItem::getRect() const
{
    return view()->mapFromScene(m_boundingRect).boundingRect();
}

//////////////////////////////////////////////////////////////////////////

void EasyGraphicsItem::getBlocks(qreal _left, qreal _right, ::profiler_gui::TreeBlocks& _blocks) const
{
    // Search for first visible top-level item
    auto& level0 = m_levels.front();
    auto first = ::std::lower_bound(level0.begin(), level0.end(), _left, [](const ::profiler_gui::EasyBlockItem& _item, qreal _value)
    {
        return _item.left() < _value;
    });

    size_t itemIndex = 0;
    if (first != level0.end())
    {
        itemIndex = first - level0.begin();
        if (itemIndex > 0)
            itemIndex -= 1;
    }
    else
    {
        itemIndex = level0.size() - 1;
    }

    // Add all visible top-level items into array of visible blocks
    for (size_t i = itemIndex, end = level0.size(); i < end; ++i)
    {
        const auto& item = level0[i];

        if (item.left() > _right)
        {
            // First invisible item. No need to check other items.
            break;
        }

        if (item.right() < _left)
        {
            // This item is not visible yet
            // This is just to be sure
            continue;
        }

        _blocks.emplace_back(m_pRoot, item.block);
    }
}

//////////////////////////////////////////////////////////////////////////

const ::profiler_gui::EasyBlock* EasyGraphicsItem::intersect(const QPointF& _pos, ::profiler::block_index_t& _blockIndex) const
{
    if (m_levels.empty() || m_levels.front().empty())
    {
        return nullptr;
    }

    const auto& level0 = m_levels.front();
    const auto top = y();

    if (top > _pos.y())
    {
        return nullptr;
    }

    static const auto OVERLAP = ::profiler_gui::THREADS_ROW_SPACING >> 1;
    const auto bottom = top + m_levels.size() * ::profiler_gui::GRAPHICS_ROW_SIZE_FULL + OVERLAP;
    if (bottom < _pos.y())
    {
        return nullptr;
    }

    const unsigned int levelIndex = static_cast<unsigned int>(_pos.y() - top) / ::profiler_gui::GRAPHICS_ROW_SIZE_FULL;
    if (levelIndex >= m_levels.size())
    {
        // The Y position is out of blocks range

        if (EASY_GLOBALS.enable_event_markers && !m_pRoot->events.empty())
        {
            // If event indicators are enabled then try to intersect with one of event indicators

            const auto& sceneView = view();
            auto first = ::std::lower_bound(m_pRoot->events.begin(), m_pRoot->events.end(), _pos.x(), [&sceneView](::profiler::block_index_t _index, qreal _value)
            {
                return sceneView->time2position(blocksTree(_index).node->begin()) < _value;
            });

            if (first != m_pRoot->events.end())
            {
                if (first != m_pRoot->events.begin())
                    --first;
            }
            else if (!m_pRoot->events.empty())
            {
                first = m_pRoot->events.begin() + m_pRoot->events.size() - 1;
            }

            const auto MIN_WIDTH = EASY_GLOBALS.enable_zero_length ? 0.f : 0.25f;
            const auto currentScale = sceneView->scale();
            const auto dw = 5. / currentScale;

            for (auto it = first, end = m_pRoot->events.end(); it != end; ++it)
            {
                _blockIndex = *it;
                const auto& item = easyBlock(_blockIndex);
                auto left = sceneView->time2position(item.tree.node->begin());

                if (left - dw > _pos.x())
                    break; // This is first totally invisible item. No need to check other items.

                decltype(left) width = MIN_WIDTH;
                if (left + width + dw < _pos.x()) // This item is not visible
                    continue;

                return &item;
            }
        }

        return nullptr;
    }

    // The Y position is inside blocks range

    const auto MIN_WIDTH = EASY_GLOBALS.enable_zero_length ? 0.f : 0.25f;

    const auto currentScale = view()->scale();
    const auto dw = 5. / currentScale;
    unsigned int i = 0;
    size_t itemIndex = ::std::numeric_limits<size_t>::max();
    size_t firstItem = 0, lastItem = static_cast<unsigned int>(level0.size());
    while (i <= levelIndex)
    {
        const auto& level = m_levels[i];

        // Search for first visible item
        auto first = ::std::lower_bound(level.begin() + firstItem, level.begin() + lastItem, _pos.x(), [](const ::profiler_gui::EasyBlockItem& _item, qreal _value)
        {
            return _item.left() < _value;
        });

        if (first != level.end())
        {
            itemIndex = first - level.begin();
            if (itemIndex != 0)
                --itemIndex;
        }
        else
        {
            itemIndex = level.size() - 1;
        }

        for (auto size = level.size(); itemIndex < size; ++itemIndex)
        {
            const auto& item = level[itemIndex];
            static const auto MAX_CHILD_INDEX = ::profiler_gui::numeric_max(item.children_begin);

            if (item.left() - dw > _pos.x())
            {
                return nullptr;
            }

            const auto item_width = ::std::max(item.width(), MIN_WIDTH);
            if (item.left() + item_width + dw < _pos.x())
            {
                continue;
            }

            const auto w = item_width * currentScale;
            const auto& guiItem = easyBlock(item.block);
            if (i == levelIndex || (w < EASY_GLOBALS.blocks_narrow_size && EASY_GLOBALS.hide_narrow_children) || !guiItem.expanded)
            {
                _blockIndex = item.block;
                return &guiItem;
            }

            if (item.children_begin == MAX_CHILD_INDEX)
            {
                if (itemIndex != 0)
                {
                    auto j = itemIndex;
                    firstItem = 0;
                    do {

                        --j;
                        const auto& item2 = level[j];
                        if (item2.children_begin != MAX_CHILD_INDEX)
                        {
                            firstItem = item2.children_begin;
                            break;
                        }

                    } while (j != 0);
                }
                else
                {
                    firstItem = 0;
                }
            }
            else
            {
                firstItem = item.children_begin;
            }

            lastItem = m_levels[i + 1].size();
            for (auto j = itemIndex + 1; j < size; ++j)
            {
                const auto& item2 = level[j];
                if (item2.children_begin != MAX_CHILD_INDEX)
                {
                    lastItem = item2.children_begin;
                    break;
                }
            }

            break;
        }

        ++i;
    }

    return nullptr;
}

const ::profiler_gui::EasyBlock* EasyGraphicsItem::intersectEvent(const QPointF& _pos) const
{
    if (m_pRoot->sync.empty())
    {
        return nullptr;
    }

    const auto top = y() - 6;

    if (top > _pos.y())
    {
        return nullptr;
    }

    const auto bottom = top + 5;
    if (bottom < _pos.y())
    {
        return nullptr;
    }

    const auto sceneView = view();
    auto firstSync = ::std::lower_bound(m_pRoot->sync.begin(), m_pRoot->sync.end(), _pos.x(), [&sceneView](::profiler::block_index_t _index, qreal _value)
    {
        return sceneView->time2position(blocksTree(_index).node->begin()) < _value;
    });

    if (firstSync == m_pRoot->sync.end())
        firstSync = m_pRoot->sync.begin() + m_pRoot->sync.size() - 1;
    else if (firstSync != m_pRoot->sync.begin())
        --firstSync;

    const auto dw = 4. / view()->scale();
    for (auto it = firstSync, end = m_pRoot->sync.end(); it != end; ++it)
    {
        const auto& item = easyBlock(*it);

        const auto left = sceneView->time2position(item.tree.node->begin()) - dw;
        if (left > _pos.x())
            break;
        
        const auto right = sceneView->time2position(item.tree.node->end()) + dw;
        if (right < _pos.x())
            continue;

        return &item;
    }

    return nullptr;
}

//////////////////////////////////////////////////////////////////////////

void EasyGraphicsItem::setBoundingRect(qreal x, qreal y, qreal w, qreal h)
{
    m_boundingRect.setRect(x, y, w, h);
}

void EasyGraphicsItem::setBoundingRect(const QRectF& _rect)
{
    m_boundingRect = _rect;
}

//////////////////////////////////////////////////////////////////////////

::profiler::thread_id_t EasyGraphicsItem::threadId() const
{
    return m_pRoot->thread_id;
}

//////////////////////////////////////////////////////////////////////////

uint8_t EasyGraphicsItem::levels() const
{
    return static_cast<uint8_t>(m_levels.size());
}

float EasyGraphicsItem::levelY(uint8_t _level) const
{
    return y() + static_cast<int>(_level) * static_cast<int>(::profiler_gui::GRAPHICS_ROW_SIZE_FULL);
}

void EasyGraphicsItem::setLevels(uint8_t _levels)
{
    typedef decltype(m_levelsIndexes) IndexesT;
    static const auto MAX_CHILD_INDEX = ::profiler_gui::numeric_max<IndexesT::value_type>();

    m_levels.resize(_levels);
    m_levelsIndexes.resize(_levels, MAX_CHILD_INDEX);
    m_rightBounds.resize(_levels, -1e100);
}

void EasyGraphicsItem::reserve(uint8_t _level, unsigned int _items)
{
    m_levels[_level].reserve(_items);
}

//////////////////////////////////////////////////////////////////////////

const EasyGraphicsItem::Children& EasyGraphicsItem::items(uint8_t _level) const
{
    return m_levels[_level];
}

const ::profiler_gui::EasyBlockItem& EasyGraphicsItem::getItem(uint8_t _level, unsigned int _index) const
{
    return m_levels[_level][_index];
}

::profiler_gui::EasyBlockItem& EasyGraphicsItem::getItem(uint8_t _level, unsigned int _index)
{
    return m_levels[_level][_index];
}

unsigned int EasyGraphicsItem::addItem(uint8_t _level)
{
    m_levels[_level].emplace_back();
    return static_cast<unsigned int>(m_levels[_level].size() - 1);
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////