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mirror of https://github.com/yse/easy_profiler.git synced 2024-12-28 01:04:41 +08:00
easy_profiler/profiler_gui/blocks_graphics_view.cpp
Victor Zarubkin 3017be305a (profiler reader) Gathering per frame statistics + refactoring;
(profiler GUI) Lightening profiler::colors to be more bright;
(ProfTreeWidget) Displaying per frame and per thread statistics;
(ProfGraphicsView) Draw chronometer item text in Difference mode to be more readable.
2016-08-07 19:38:31 +03:00

1559 lines
48 KiB
C++

/************************************************************************
* file name : blocks_graphics_view.cpp
* ----------------- :
* creation time : 2016/06/26
* copyright : (c) 2016 Victor Zarubkin
* author : Victor Zarubkin
* email : v.s.zarubkin@gmail.com
* ----------------- :
* description : The file contains implementation of GraphicsScene and GraphicsView and
* : it's auxiliary classes for displyaing easy_profiler blocks tree.
* ----------------- :
* change log : * 2016/06/26 Victor Zarubkin: Moved sources from graphics_view.h
* : and renamed classes from My* to Prof*.
* :
* : * 2016/06/27 Victor Zarubkin: Added text shifting relatively to it's parent item.
* : Disabled border lines painting because of vertical lines painting bug.
* : Changed height of blocks. Variable thread-block height.
* :
* : * 2016/06/29 Victor Zarubkin: Highly optimized painting performance and memory consumption.
* :
* : * 2016/06/30 Victor Zarubkin: Replaced doubles with floats (in ProfBlockItem) for less memory consumption.
* :
* : *
* ----------------- :
* license : TODO: add license text
************************************************************************/
#include <QWheelEvent>
#include <QMouseEvent>
#include <QScrollBar>
#include <QVBoxLayout>
#include <QFontMetrics>
#include <math.h>
#include <algorithm>
#include "blocks_graphics_view.h"
using namespace profiler_gui;
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
const qreal SCALING_COEFFICIENT = 1.25;
const qreal SCALING_COEFFICIENT_INV = 1.0 / SCALING_COEFFICIENT;
const qreal MIN_SCALE = pow(SCALING_COEFFICIENT_INV, 70);
const qreal MAX_SCALE = pow(SCALING_COEFFICIENT, 30); // ~800
const qreal BASE_SCALE = pow(SCALING_COEFFICIENT_INV, 25); // ~0.003
const unsigned short GRAPHICS_ROW_SIZE = 16;
const unsigned short GRAPHICS_ROW_SIZE_FULL = GRAPHICS_ROW_SIZE + 2;
const unsigned short ROW_SPACING = 4;
const QRgb BORDERS_COLOR = 0x00a07050;
const QRgb BACKGROUND_1 = 0x00dddddd;
const QRgb BACKGROUND_2 = 0x00ffffff;
const QColor CHRONOMETER_COLOR2 = QColor::fromRgba(0x20408040);
const unsigned int TEST_PROGRESSION_BASE = 4;
const int FLICKER_INTERVAL = 16; // 60Hz
//////////////////////////////////////////////////////////////////////////
auto const sign = [](int _value) { return _value < 0 ? -1 : 1; };
auto const absmin = [](int _a, int _b) { return abs(_a) < abs(_b) ? _a : _b; };
auto const clamp = [](qreal _minValue, qreal _value, qreal _maxValue) { return _value < _minValue ? _minValue : (_value > _maxValue ? _maxValue : _value); };
//////////////////////////////////////////////////////////////////////////
template <int N, class T>
inline T logn(T _value)
{
static const double div = 1.0 / log2((double)N);
return log2(_value) * div;
}
//////////////////////////////////////////////////////////////////////////
QRgb BG1();
QRgb BG2();
QRgb (*GetBackgroundColor)() = BG1;
QRgb BG1()
{
GetBackgroundColor = BG2;
return BACKGROUND_1;
}
QRgb BG2()
{
GetBackgroundColor = BG1;
return BACKGROUND_2;
}
//////////////////////////////////////////////////////////////////////////
ProfGraphicsItem::ProfGraphicsItem() : ProfGraphicsItem(false)
{
}
ProfGraphicsItem::ProfGraphicsItem(bool _test) : QGraphicsItem(nullptr), m_bTest(_test), m_backgroundColor(0x00ffffff), m_pRoot(nullptr)
{
}
ProfGraphicsItem::ProfGraphicsItem(const ::profiler::BlocksTreeRoot* _root) : ProfGraphicsItem(false)
{
m_pRoot = _root;
}
ProfGraphicsItem::~ProfGraphicsItem()
{
}
const ProfGraphicsView* ProfGraphicsItem::view() const
{
return static_cast<const ProfGraphicsView*>(scene()->parent());
}
//////////////////////////////////////////////////////////////////////////
QRectF ProfGraphicsItem::boundingRect() const
{
//const auto sceneView = view();
//return QRectF(m_boundingRect.left() - sceneView->offset() / sceneView->scale(), m_boundingRect.top(), m_boundingRect.width() * sceneView->scale(), m_boundingRect.height());
return m_boundingRect;
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget)
{
if (m_levels.empty() || m_levels.front().empty())
{
return;
}
const auto sceneView = view();
const auto visibleSceneRect = sceneView->visibleSceneRect(); // Current visible scene rect
const auto currentScale = sceneView->scale(); // Current GraphicsView scale
const auto offset = sceneView->offset();
const auto sceneLeft = offset, sceneRight = offset + visibleSceneRect.width() / currentScale;
//printf("VISIBLE = {%lf, %lf}\n", sceneLeft, sceneRight);
QRectF rect;
QBrush brush;
QRgb previousColor = 0;
Qt::PenStyle previousPenStyle = Qt::NoPen;
brush.setStyle(Qt::SolidPattern);
_painter->save();
// Reset indices of first visible item for each layer
const auto levelsNumber = levels();
for (unsigned short i = 1; i < levelsNumber; ++i)
m_levelsIndexes[i] = -1;
// Search for first visible top-level item
auto& level0 = m_levels[0];
auto first = ::std::lower_bound(level0.begin(), level0.end(), sceneLeft, [](const ::profiler_gui::ProfBlockItem& _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);
}
// Draw background --------------------------
if (!m_bTest && m_pRoot->thread_id == ::profiler_gui::EASY_GLOBALS.selected_thread && m_pRoot->thread_id != 0)
{
brush.setColor(::profiler_gui::SELECTED_THREAD_BACKGROUND);
}
else
{
brush.setColor(m_backgroundColor);
}
_painter->setBrush(brush);
_painter->setPen(Qt::NoPen);
rect.setRect(0, m_boundingRect.top() - (ROW_SPACING >> 1), visibleSceneRect.width(), m_boundingRect.height() + ROW_SPACING);
_painter->drawRect(rect);
// END. Draw background. ~~~~~~~~~~~~~~~~~~~~
// 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)
auto dx = level0[m_levelsIndexes[0]].left() * currentScale;
// Shifting coordinates to current screen offset
_painter->setTransform(QTransform::fromTranslate(dx - offset * currentScale, -y()), true);
if (::profiler_gui::EASY_GLOBALS.draw_graphics_items_borders)
{
previousPenStyle = Qt::SolidLine;
_painter->setPen(BORDERS_COLOR);
}
// Iterate through layers and draw visible items
for (unsigned short l = 0; l < levelsNumber; ++l)
{
auto& level = m_levels[l];
const auto next_level = l + 1;
char state = 1;
//bool changebrush = false;
for (unsigned int i = m_levelsIndexes[l], end = static_cast<unsigned int>(level.size()); i < end; ++i)
{
auto& item = level[i];
if (item.state != 0)
{
state = item.state;
}
if (item.right() < sceneLeft || state == -1 || (l == 0 && (item.top() > visibleSceneRect.bottom() || (item.top() + item.totalHeight) < visibleSceneRect.top())))
{
// This item is not visible
++m_levelsIndexes[l];
continue;
}
auto w = ::std::max(item.width() * currentScale, 1.0);
if (w < 20)
{
// Items which width is less than 20 will be painted as big rectangles which are hiding it's children
if (item.left() > sceneRight)
{
// This is first totally invisible item. No need to check other items.
break;
}
const auto x = item.left() * currentScale - dx;
//if (previousColor != item.color)
//{
// changebrush = true;
// previousColor = item.color;
// QLinearGradient gradient(x - dx, item.top(), x - dx, item.top() + item.totalHeight);
// gradient.setColorAt(0, item.color);
// gradient.setColorAt(1, 0x00ffffff);
// brush = QBrush(gradient);
// _painter->setBrush(brush);
//}
if (previousColor != item.color)
{
// Set background color brush for rectangle
previousColor = item.color;
brush.setColor(previousColor);
_painter->setBrush(brush);
}
if (::profiler_gui::EASY_GLOBALS.draw_graphics_items_borders)
{
if (w < 3)
{
// Do not paint borders for very narrow items
if (previousPenStyle != Qt::NoPen)
{
previousPenStyle = Qt::NoPen;
_painter->setPen(Qt::NoPen);
}
}
else if (previousPenStyle != Qt::SolidLine)
{
// Restore pen for item which is wide enough to paint borders
previousPenStyle = Qt::SolidLine;
_painter->setPen(BORDERS_COLOR);
}
}
// Draw rectangle
rect.setRect(x, item.top(), w, item.totalHeight);
_painter->drawRect(rect);
if (next_level < levelsNumber && item.children_begin != -1)
{
// Mark that we would not paint children of current item
m_levels[next_level][item.children_begin].state = -1;
}
continue;
}
if (next_level < levelsNumber && item.children_begin != -1)
{
if (m_levelsIndexes[next_level] == -1)
{
// Mark first potentially visible child item on next sublevel
m_levelsIndexes[next_level] = item.children_begin;
}
// Mark children items that we want to draw them
m_levels[next_level][item.children_begin].state = 1;
}
if (item.left() > sceneRight)
{
// This is first totally invisible item. No need to check other items.
break;
}
//if (changebrush)
//{
// changebrush = false;
// previousColor = item.color;
// brush = QBrush(previousColor);
// _painter->setBrush(brush);
//} else
if (previousColor != item.color)
{
// Set background color brush for rectangle
previousColor = item.color;
brush.setColor(previousColor);
_painter->setBrush(brush);
}
if (::profiler_gui::EASY_GLOBALS.draw_graphics_items_borders && previousPenStyle != Qt::SolidLine)
{
// Restore pen for item which is wide enough to paint borders
previousPenStyle = Qt::SolidLine;
_painter->setPen(BORDERS_COLOR);
}
// Draw rectangle
const auto x = item.left() * currentScale - dx;
rect.setRect(x, item.top(), w, item.height());
_painter->drawRect(rect);
// Draw text-----------------------------------
// calculating text coordinates
auto xtext = x;
if (item.left() < 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() - sceneLeft) * currentScale;
xtext = sceneLeft * currentScale - dx;
}
rect.setRect(xtext + 1, item.top(), w - 1, item.height());
// text will be painted with inverse color
auto textColor = 0x00ffffff - previousColor;
if (textColor == previousColor) textColor = 0;
_painter->setPen(textColor);
// drawing text
if (m_bTest)
{
char text[128] = {0};
sprintf(text, "ITEM_%u", i);
_painter->drawText(rect, 0, text);
}
else
{
_painter->drawText(rect, 0, item.block->node->getBlockName());
}
// restore previous pen color
if (previousPenStyle == Qt::NoPen)
{
_painter->setPen(Qt::NoPen);
}
else
{
_painter->setPen(BORDERS_COLOR); // restore pen for rectangle painting
}
// END Draw text~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
}
}
_painter->restore();
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsItem::getBlocks(qreal _left, qreal _right, ::profiler_gui::TreeBlocks& _blocks) const
{
//if (m_bTest)
//{
// return;
//}
// Search for first visible top-level item
auto& level0 = m_levels[0];
auto first = ::std::lower_bound(level0.begin(), level0.end(), _left, [](const ::profiler_gui::ProfBlockItem& _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);
}
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsItem::setBackgroundColor(QRgb _color)
{
m_backgroundColor = _color;
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsItem::setBoundingRect(qreal x, qreal y, qreal w, qreal h)
{
m_boundingRect.setRect(x, y, w, h);
}
void ProfGraphicsItem::setBoundingRect(const QRectF& _rect)
{
m_boundingRect = _rect;
}
//////////////////////////////////////////////////////////////////////////
::profiler::thread_id_t ProfGraphicsItem::threadId() const
{
return m_pRoot->thread_id;
}
//////////////////////////////////////////////////////////////////////////
unsigned short ProfGraphicsItem::levels() const
{
return static_cast<unsigned short>(m_levels.size());
}
void ProfGraphicsItem::setLevels(unsigned short _levels)
{
m_levels.resize(_levels);
m_levelsIndexes.resize(_levels, -1);
}
void ProfGraphicsItem::reserve(unsigned short _level, unsigned int _items)
{
m_levels[_level].reserve(_items);
}
//////////////////////////////////////////////////////////////////////////
const ProfGraphicsItem::Children& ProfGraphicsItem::items(unsigned short _level) const
{
return m_levels[_level];
}
const ::profiler_gui::ProfBlockItem& ProfGraphicsItem::getItem(unsigned short _level, unsigned int _index) const
{
return m_levels[_level][_index];
}
::profiler_gui::ProfBlockItem& ProfGraphicsItem::getItem(unsigned short _level, unsigned int _index)
{
return m_levels[_level][_index];
}
unsigned int ProfGraphicsItem::addItem(unsigned short _level)
{
m_levels[_level].emplace_back();
return static_cast<unsigned int>(m_levels[_level].size() - 1);
}
//////////////////////////////////////////////////////////////////////////
ProfChronometerItem::ProfChronometerItem(bool _main) : QGraphicsItem(), m_font(QFont("CourierNew", 16, 2)), m_color(CHRONOMETER_COLOR), m_left(0), m_right(0), m_bMain(_main), m_bReverse(false)
{
setZValue(10);
m_indicator.reserve(3);
}
ProfChronometerItem::~ProfChronometerItem()
{
}
QRectF ProfChronometerItem::boundingRect() const
{
return m_boundingRect;
}
void ProfChronometerItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget)
{
const auto sceneView = view();
const auto currentScale = sceneView->scale();
const auto offset = sceneView->offset();
const auto visibleSceneRect = sceneView->visibleSceneRect();
auto sceneLeft = offset, sceneRight = offset + visibleSceneRect.width() / currentScale;
if (m_left > sceneRight || m_right < sceneLeft)
{
// This item is out of screen
if (m_bMain)
{
auto vcenter = visibleSceneRect.top() + visibleSceneRect.height() * 0.5;
m_indicator.clear();
if (m_left > sceneRight)
{
auto vbar = sceneView->verticalScrollBar();
sceneRight = ((sceneRight - offset) * currentScale) - 2 - (vbar->isVisible() ? vbar->width() : 0);
m_indicator.push_back(QPointF(sceneRight - 10, vcenter - 10));
m_indicator.push_back(QPointF(sceneRight, vcenter));
m_indicator.push_back(QPointF(sceneRight - 10, vcenter + 10));
}
else
{
sceneLeft = (sceneLeft - offset) * currentScale;
m_indicator.push_back(QPointF(sceneLeft + 10, vcenter - 10));
m_indicator.push_back(QPointF(sceneLeft, vcenter));
m_indicator.push_back(QPointF(sceneLeft + 10, vcenter + 10));
}
_painter->save();
_painter->setTransform(QTransform::fromTranslate(-x(), -y()), true);
_painter->setBrush(QColor::fromRgb(m_color.rgb()));
_painter->setPen(Qt::NoPen);
_painter->drawPolygon(m_indicator);
_painter->restore();
}
return;
}
const auto selectedInterval = width();
QRectF rect((m_left - offset) * currentScale, visibleSceneRect.top(), ::std::max(selectedInterval * currentScale, 1.0), visibleSceneRect.height());
QString text; // Displayed text
if (selectedInterval < 1.0) // interval in nanoseconds
text = ::std::move(QString("%1 ns").arg(selectedInterval * 1e3, 0, 'f', 1));
else if (selectedInterval < 1e3) // interval in microseconds
text = ::std::move(QString("%1 us").arg(selectedInterval, 0, 'f', 1));
else if (selectedInterval < 1e6) // interval in milliseconds
text = ::std::move(QString("%1 ms").arg(selectedInterval * 1e-3, 0, 'f', 1));
else // interval in seconds
text = ::std::move(QString("%1 sec").arg(selectedInterval * 1e-6, 0, 'f', 1));
const auto textRect = QFontMetrics(m_font).boundingRect(text); // Calculate displayed text boundingRect
// Paint!--------------------------
_painter->save();
// instead of scrollbar we're using manual offset
_painter->setTransform(QTransform::fromTranslate(-x(), -y()), true);
// draw transparent rectangle
_painter->setBrush(m_color);
_painter->setPen(Qt::NoPen);
_painter->drawRect(rect);
// draw text
_painter->setCompositionMode(QPainter::CompositionMode_Difference); // This lets the text to be visible on every background
_painter->setPen(0xffffffff - m_color.rgb());
_painter->setFont(m_font);
if (m_left < sceneLeft)
{
rect.setLeft(0);
}
if (m_right > sceneRight)
{
rect.setWidth((sceneRight - offset) * currentScale - rect.left());
}
if (!m_bMain)
{
rect.setTop(rect.top() + textRect.height() * 1.5);
}
if (textRect.width() < rect.width())
{
// Text will be drawed inside rectangle
_painter->drawText(rect, Qt::AlignCenter, text);
_painter->restore();
return;
}
sceneLeft -= offset;
sceneRight -= offset;
if (rect.right() + textRect.width() < sceneRight)
{
// Text will be drawed to the right of rectangle
_painter->drawText(QPointF(rect.right(), rect.top() + rect.height() * 0.5 + textRect.height() * 0.33), text);
}
else if (rect.left() - textRect.width() > sceneLeft)
{
// Text will be drawed to the left of rectangle
_painter->drawText(QPointF(rect.left() - textRect.width(), rect.top() + rect.height() * 0.5 + textRect.height() * 0.33), text);
}
else
{
// Text will be drawed inside rectangle
_painter->drawText(rect, Qt::AlignCenter | Qt::TextDontClip, text);
}
_painter->restore();
// END Paint!~~~~~~~~~~~~~~~~~~~~~~
}
void ProfChronometerItem::setColor(const QColor& _color)
{
m_color = _color;
}
void ProfChronometerItem::setBoundingRect(qreal x, qreal y, qreal w, qreal h)
{
m_boundingRect.setRect(x, y, w, h);
}
void ProfChronometerItem::setBoundingRect(const QRectF& _rect)
{
m_boundingRect = _rect;
}
void ProfChronometerItem::setLeftRight(qreal _left, qreal _right)
{
if (_left < _right)
{
m_left = _left;
m_right = _right;
}
else
{
m_left = _right;
m_right = _left;
}
}
void ProfChronometerItem::setReverse(bool _reverse)
{
m_bReverse = _reverse;
}
const ProfGraphicsView* ProfChronometerItem::view() const
{
return static_cast<const ProfGraphicsView*>(scene()->parent());
}
//////////////////////////////////////////////////////////////////////////
ProfGraphicsView::ProfGraphicsView(bool _test)
: QGraphicsView()
, m_beginTime(-1)
, m_scale(1)
, m_offset(0)
, m_mouseButtons(Qt::NoButton)
, m_pScrollbar(nullptr)
, m_chronometerItem(nullptr)
, m_chronometerItemAux(nullptr)
, m_flickerSpeedX(0)
, m_flickerSpeedY(0)
, m_bDoubleClick(false)
, m_bUpdatingRect(false)
, m_bTest(_test)
, m_bEmpty(true)
{
initMode();
setScene(new QGraphicsScene(this));
if (_test)
{
test(18000, 40000000, 2);
}
updateVisibleSceneRect();
}
ProfGraphicsView::ProfGraphicsView(const ::profiler::thread_blocks_tree_t& _blocksTree)
: QGraphicsView()
, m_beginTime(-1)
, m_scale(1)
, m_offset(0)
, m_mouseButtons(Qt::NoButton)
, m_pScrollbar(nullptr)
, m_chronometerItem(nullptr)
, m_chronometerItemAux(nullptr)
, m_flickerSpeedX(0)
, m_flickerSpeedY(0)
, m_bDoubleClick(false)
, m_bUpdatingRect(false)
, m_bTest(false)
, m_bEmpty(true)
{
initMode();
setScene(new QGraphicsScene(this));
setTree(_blocksTree);
updateVisibleSceneRect();
}
ProfGraphicsView::~ProfGraphicsView()
{
}
//////////////////////////////////////////////////////////////////////////
ProfChronometerItem* ProfGraphicsView::createChronometer(bool _main)
{
auto chronoItem = new ProfChronometerItem(_main);
chronoItem->setColor(_main ? CHRONOMETER_COLOR : CHRONOMETER_COLOR2);
chronoItem->setBoundingRect(scene()->sceneRect());
chronoItem->hide();
scene()->addItem(chronoItem);
return chronoItem;
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::fillTestChildren(ProfGraphicsItem* _item, const int _maxlevel, int _level, qreal _x, qreal _y, unsigned int _childrenNumber, unsigned int& _total_items)
{
unsigned int nchildren = _childrenNumber;
_childrenNumber = TEST_PROGRESSION_BASE;
for (unsigned int i = 0; i < nchildren; ++i)
{
auto j = _item->addItem(_level);
auto& b = _item->getItem(_level, j);
b.color = ::profiler_gui::toRgb(30 + rand() % 225, 30 + rand() % 225, 30 + rand() % 225);
b.state = 0;
if (_level < _maxlevel)
{
const auto& children = _item->items(_level + 1);
b.children_begin = static_cast<unsigned int>(children.size());
fillTestChildren(_item, _maxlevel, _level + 1, _x, _y + GRAPHICS_ROW_SIZE_FULL, _childrenNumber, _total_items);
const auto& last = children.back();
b.setRect(_x, _y, last.right() - _x, GRAPHICS_ROW_SIZE);
b.totalHeight = GRAPHICS_ROW_SIZE_FULL + last.totalHeight;
}
else
{
b.setRect(_x, _y, to_microseconds(10 + rand() % 190), GRAPHICS_ROW_SIZE);
b.totalHeight = GRAPHICS_ROW_SIZE;
b.children_begin = -1;
}
_x = b.right();
++_total_items;
}
}
void ProfGraphicsView::test(unsigned int _frames_number, unsigned int _total_items_number_estimate, int _rows)
{
static const qreal X_BEGIN = 50;
static const qreal Y_BEGIN = 0;
clearSilent(); // Clear scene
// Calculate items number for first level
_rows = ::std::max(1, _rows);
const auto children_per_frame = static_cast<unsigned int>(0.5 + static_cast<double>(_total_items_number_estimate) / static_cast<double>(_rows * _frames_number));
const int max_depth = logn<TEST_PROGRESSION_BASE>(children_per_frame * (TEST_PROGRESSION_BASE - 1) * 0.5 + 1);
const auto first_level_children_count = static_cast<unsigned int>(static_cast<double>(children_per_frame) * (1.0 - TEST_PROGRESSION_BASE) / (1.0 - pow(TEST_PROGRESSION_BASE, max_depth)) + 0.5);
::std::vector<ProfGraphicsItem*> thread_items(_rows);
for (int i = 0; i < _rows; ++i)
{
auto item = new ProfGraphicsItem(true);
thread_items[i] = item;
item->setPos(0, Y_BEGIN + i * (max_depth * GRAPHICS_ROW_SIZE_FULL + ROW_SPACING * 5));
item->setLevels(max_depth + 1);
item->reserve(0, _frames_number);
}
// Calculate items number for each sublevel
auto chldrn = first_level_children_count;
for (int i = 1; i <= max_depth; ++i)
{
for (int i = 0; i < _rows; ++i)
{
auto item = thread_items[i];
item->reserve(i, chldrn * _frames_number);
}
chldrn *= TEST_PROGRESSION_BASE;
}
// Create required number of items
unsigned int total_items = 0;
qreal maxX = 0;
const ProfGraphicsItem* longestItem = nullptr;
for (int i = 0; i < _rows; ++i)
{
auto item = thread_items[i];
qreal x = X_BEGIN, y = item->y();
for (unsigned int i = 0; i < _frames_number; ++i)
{
auto j = item->addItem(0);
auto& b = item->getItem(0, j);
b.color = ::profiler_gui::toRgb(30 + rand() % 225, 30 + rand() % 225, 30 + rand() % 225);
b.state = 0;
const auto& children = item->items(1);
b.children_begin = static_cast<unsigned int>(children.size());
fillTestChildren(item, max_depth, 1, x, y + GRAPHICS_ROW_SIZE_FULL, first_level_children_count, total_items);
const auto& last = children.back();
b.setRect(x, y, last.right() - x, GRAPHICS_ROW_SIZE);
b.totalHeight = GRAPHICS_ROW_SIZE_FULL + last.totalHeight;
x += b.width() * 1.2;
++total_items;
}
const auto h = item->getItem(0, 0).totalHeight;
item->setBoundingRect(0, 0, x, h);
if (_rows > 1)
{
item->setBackgroundColor(GetBackgroundColor());
}
m_items.push_back(item);
scene()->addItem(item);
if (maxX < x)
{
maxX = x;
longestItem = item;
}
}
printf("TOTAL ITEMS = %u\n", total_items);
// Calculate scene rect
auto item = thread_items.back();
scene()->setSceneRect(0, 0, maxX, item->y() + item->getItem(0, 0).totalHeight);
// Reset necessary values
m_offset = 0;
updateVisibleSceneRect();
setScrollbar(m_pScrollbar);
m_pScrollbar->setMinimapFrom(0, longestItem->items(0));
::profiler_gui::EASY_GLOBALS.selected_thread = 0;
emit ::profiler_gui::EASY_GLOBALS.events.selectedThreadChanged(0);
// Create new chronometer item (previous item was destroyed by scene on scene()->clear()).
// It will be shown on mouse right button click.
m_chronometerItem = createChronometer(true);
m_chronometerItemAux = createChronometer(false);
// Set necessary flags
m_bTest = true;
m_bEmpty = false;
scaleTo(BASE_SCALE);
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::clearSilent()
{
const QSignalBlocker blocker(this), sceneBlocker(scene()); // block all scene signals (otherwise clear() would be extremely slow!)
GetBackgroundColor = BG1; // reset background color
// Stop flicking
m_flickerTimer.stop();
m_flickerSpeedX = 0;
m_flickerSpeedY = 0;
// Clear all items
scene()->clear();
m_items.clear();
m_selectedBlocks.clear();
m_beginTime = -1; // reset begin time
m_scale = 1; // scale back to initial 100% scale
m_offset = 0; // scroll back to the beginning of the scene
// Reset necessary flags
m_bTest = false;
m_bEmpty = true;
// notify ProfTreeWidget that selection was reset
emit intervalChanged(m_selectedBlocks, m_beginTime, 0, 0, false);
}
void ProfGraphicsView::setTree(const ::profiler::thread_blocks_tree_t& _blocksTree)
{
// clear scene
clearSilent();
// set new blocks tree
// calculate scene size and fill it with items
// Calculating start and end time
::profiler::timestamp_t finish = 0;
const ::profiler::BlocksTree* longestTree = nullptr;
const ProfGraphicsItem* longestItem = nullptr;
for (const auto& threadTree : _blocksTree)
{
const auto& tree = threadTree.second.tree;
const auto timestart = tree.children.front().node->block()->getBegin();
const auto timefinish = tree.children.back().node->block()->getEnd();
if (m_beginTime > timestart)
{
m_beginTime = timestart;
}
if (finish < timefinish)
{
finish = timefinish;
longestTree = &tree;
}
}
// Filling scene with items
m_items.reserve(_blocksTree.size());
qreal y = 0;
for (const auto& threadTree : _blocksTree)
{
// fill scene with new items
const auto& tree = threadTree.second.tree;
qreal h = 0, x = time2position(tree.children.front().node->block()->getBegin());
auto item = new ProfGraphicsItem(&threadTree.second);
item->setLevels(tree.depth);
item->setPos(0, y);
const auto children_duration = setTree(item, tree.children, h, y, 0);
item->setBoundingRect(0, 0, children_duration + x, h);
item->setBackgroundColor(GetBackgroundColor());
m_items.push_back(item);
scene()->addItem(item);
y += h + ROW_SPACING;
if (longestTree == &tree)
{
longestItem = item;
}
}
// Calculating scene rect
const qreal endX = time2position(finish) + 1500.0;
scene()->setSceneRect(0, 0, endX, y);
// Stub! :O
for (auto item : m_items)
{
item->setBoundingRect(0, 0, endX, item->boundingRect().height());
}
// Center view on the beginning of the scene
updateVisibleSceneRect();
setScrollbar(m_pScrollbar);
m_pScrollbar->setMinimapFrom(longestItem->threadId(), longestItem->items(0));
::profiler_gui::EASY_GLOBALS.selected_thread = longestItem->threadId();
emit ::profiler_gui::EASY_GLOBALS.events.selectedThreadChanged(longestItem->threadId());
// Create new chronometer item (previous item was destroyed by scene on scene()->clear()).
// It will be shown on mouse right button click.
m_chronometerItem = createChronometer(true);
m_chronometerItemAux = createChronometer(false);
// Setting flags
m_bTest = false;
m_bEmpty = false;
scaleTo(BASE_SCALE);
}
qreal ProfGraphicsView::setTree(ProfGraphicsItem* _item, const ::profiler::BlocksTree::children_t& _children, qreal& _height, qreal _y, unsigned short _level)
{
static const qreal MIN_DURATION = 0.25;
if (_children.empty())
{
return 0;
}
_item->reserve(_level, static_cast<unsigned int>(_children.size()));
const auto next_level = _level + 1;
qreal total_duration = 0, prev_end = 0, maxh = 0;
qreal start_time = -1;
for (const auto& child : _children)
{
auto xbegin = time2position(child.node->block()->getBegin());
if (start_time < 0)
{
start_time = xbegin;
}
auto duration = time2position(child.node->block()->getEnd()) - xbegin;
const auto dt = xbegin - prev_end;
if (dt < 0)
{
duration += dt;
xbegin -= dt;
}
if (duration < MIN_DURATION)
{
duration = MIN_DURATION;
}
auto i = _item->addItem(_level);
auto& b = _item->getItem(_level, i);
auto& gui_block = ::profiler_gui::EASY_GLOBALS.gui_blocks[child.block_index];
gui_block.graphics_item = _item;
gui_block.graphics_item_level = _level;
gui_block.graphics_item_index = i;
if (next_level < _item->levels() && !child.children.empty())
{
b.children_begin = static_cast<unsigned int>(_item->items(next_level).size());
}
else
{
b.children_begin = -1;
}
qreal h = 0;
const auto children_duration = setTree(_item, child.children, h, _y + GRAPHICS_ROW_SIZE_FULL, next_level);
if (duration < children_duration)
{
duration = children_duration;
}
if (h > maxh)
{
maxh = h;
}
const auto color = child.node->block()->getColor();
b.block = &child;
b.color = ::profiler_gui::fromProfilerRgb(::profiler::colors::get_red(color), ::profiler::colors::get_green(color), ::profiler::colors::get_blue(color));
b.setRect(xbegin, _y, duration, GRAPHICS_ROW_SIZE);
b.totalHeight = GRAPHICS_ROW_SIZE + h;
prev_end = xbegin + duration;
total_duration = prev_end - start_time;
}
_height += GRAPHICS_ROW_SIZE_FULL + maxh;
return total_duration;
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::setScrollbar(ProfGraphicsScrollbar* _scrollbar)
{
if (m_pScrollbar)
{
disconnect(m_pScrollbar, &ProfGraphicsScrollbar::valueChanged, this, &This::onGraphicsScrollbarValueChange);
}
m_pScrollbar = _scrollbar;
m_pScrollbar->setMinimapFrom(0, nullptr);
m_pScrollbar->hideChrono();
m_pScrollbar->setRange(0, scene()->width());
m_pScrollbar->setSliderWidth(m_visibleSceneRect.width());
m_pScrollbar->setValue(0);
connect(m_pScrollbar, &ProfGraphicsScrollbar::valueChanged, this, &This::onGraphicsScrollbarValueChange);
::profiler_gui::EASY_GLOBALS.selected_thread = 0;
emit ::profiler_gui::EASY_GLOBALS.events.selectedThreadChanged(0);
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::updateVisibleSceneRect()
{
m_visibleSceneRect = mapToScene(rect()).boundingRect();
auto vbar = verticalScrollBar();
if (vbar && vbar->isVisible())
m_visibleSceneRect.setWidth(m_visibleSceneRect.width() - vbar->width() - 2);
}
void ProfGraphicsView::updateScene()
{
scene()->update(m_visibleSceneRect);
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::scaleTo(qreal _scale)
{
if (m_bEmpty)
{
return;
}
// have to limit scale because of Qt's QPainter feature: it doesn't draw text
// with very big coordinates (but it draw rectangles with the same coordinates good).
m_scale = clamp(MIN_SCALE, _scale, MAX_SCALE);
updateVisibleSceneRect();
// Update slider width for scrollbar
const auto windowWidth = m_visibleSceneRect.width() / m_scale;
m_pScrollbar->setSliderWidth(windowWidth);
updateScene();
}
void ProfGraphicsView::wheelEvent(QWheelEvent* _event)
{
if (m_bEmpty)
{
_event->accept();
return;
}
const decltype(m_scale) scaleCoeff = _event->delta() > 0 ? SCALING_COEFFICIENT : SCALING_COEFFICIENT_INV;
// Remember current mouse position
const auto mouseX = mapToScene(_event->pos()).x();
const auto mousePosition = m_offset + mouseX / m_scale;
// have to limit scale because of Qt's QPainter feature: it doesn't draw text
// with very big coordinates (but it draw rectangles with the same coordinates good).
m_scale = clamp(MIN_SCALE, m_scale * scaleCoeff, MAX_SCALE);
updateVisibleSceneRect(); // Update scene rect
// Update slider width for scrollbar
const auto windowWidth = m_visibleSceneRect.width() / m_scale;
m_pScrollbar->setSliderWidth(windowWidth);
// Calculate new offset to simulate QGraphicsView::AnchorUnderMouse scaling behavior
m_offset = clamp(0., mousePosition - mouseX / m_scale, scene()->width() - windowWidth);
// Update slider position
m_bUpdatingRect = true; // To be sure that updateVisibleSceneRect will not be called by scrollbar change
m_pScrollbar->setValue(m_offset);
m_bUpdatingRect = false;
updateScene(); // repaint scene
_event->accept();
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::mousePressEvent(QMouseEvent* _event)
{
if (m_bEmpty)
{
_event->accept();
return;
}
m_mouseButtons = _event->buttons();
if (m_mouseButtons & Qt::LeftButton)
{
m_mousePressPos = _event->globalPos();
}
if (m_mouseButtons & Qt::RightButton)
{
const auto mouseX = m_offset + mapToScene(_event->pos()).x() / m_scale;
m_chronometerItem->setLeftRight(mouseX, mouseX);
m_chronometerItem->setReverse(false);
m_chronometerItem->hide();
m_pScrollbar->hideChrono();
}
_event->accept();
}
void ProfGraphicsView::mouseDoubleClickEvent(QMouseEvent* _event)
{
if (m_bEmpty)
{
_event->accept();
return;
}
m_mouseButtons = _event->buttons();
m_bDoubleClick = true;
if (m_mouseButtons & Qt::LeftButton)
{
const auto mouseX = m_offset + mapToScene(_event->pos()).x() / m_scale;
m_chronometerItemAux->setLeftRight(mouseX, mouseX);
m_chronometerItemAux->setReverse(false);
m_chronometerItemAux->hide();
}
_event->accept();
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::mouseReleaseEvent(QMouseEvent* _event)
{
if (m_bEmpty)
{
_event->accept();
return;
}
bool changedSelection = false;
if (m_mouseButtons & Qt::RightButton)
{
if (m_chronometerItem->isVisible() && m_chronometerItem->width() < 1e-6)
{
m_chronometerItem->hide();
m_pScrollbar->hideChrono();
}
if (!m_selectedBlocks.empty())
{
changedSelection = true;
m_selectedBlocks.clear();
}
if (!m_bTest && m_chronometerItem->isVisible())
{
//printf("INTERVAL: {%lf, %lf} ms\n", m_chronometerItem->left(), m_chronometerItem->right());
for (auto item : m_items)
{
item->getBlocks(m_chronometerItem->left(), m_chronometerItem->right(), m_selectedBlocks);
}
if (!m_selectedBlocks.empty())
{
changedSelection = true;
}
}
}
if (m_mouseButtons & Qt::LeftButton)
{
if (m_chronometerItemAux->isVisible() && m_chronometerItemAux->width() < 1e-6)
{
m_chronometerItemAux->hide();
}
}
m_bDoubleClick = false;
m_mouseButtons = _event->buttons();
_event->accept();
if (changedSelection)
{
emit intervalChanged(m_selectedBlocks, m_beginTime, position2time(m_chronometerItem->left()), position2time(m_chronometerItem->right()), m_chronometerItem->reverse());
}
m_chronometerItem->setReverse(false);
}
//////////////////////////////////////////////////////////////////////////
bool ProfGraphicsView::moveChrono(ProfChronometerItem* _chronometerItem, qreal _mouseX)
{
if (_chronometerItem->reverse())
{
if (_mouseX > _chronometerItem->right())
{
_chronometerItem->setReverse(false);
_chronometerItem->setLeftRight(_chronometerItem->right(), _mouseX);
}
else
{
_chronometerItem->setLeftRight(_mouseX, _chronometerItem->right());
}
}
else
{
if (_mouseX < _chronometerItem->left())
{
_chronometerItem->setReverse(true);
_chronometerItem->setLeftRight(_mouseX, _chronometerItem->left());
}
else
{
_chronometerItem->setLeftRight(_chronometerItem->left(), _mouseX);
}
}
if (!_chronometerItem->isVisible() && _chronometerItem->width() > 1e-6)
{
_chronometerItem->show();
return true;
}
return false;
}
void ProfGraphicsView::mouseMoveEvent(QMouseEvent* _event)
{
if (m_bEmpty)
{
_event->accept();
return;
}
bool needUpdate = false;
if (m_mouseButtons & Qt::RightButton)
{
const auto mouseX = m_offset + mapToScene(_event->pos()).x() / m_scale;
bool showItem = moveChrono(m_chronometerItem, mouseX);
m_pScrollbar->setChronoPos(m_chronometerItem->left(), m_chronometerItem->right());
if (showItem)
{
m_pScrollbar->showChrono();
}
needUpdate = true;
}
if (m_mouseButtons & Qt::LeftButton)
{
if (m_bDoubleClick)
{
const auto mouseX = m_offset + mapToScene(_event->pos()).x() / m_scale;
moveChrono(m_chronometerItemAux, mouseX);
}
else
{
const auto pos = _event->globalPos();
const auto delta = pos - m_mousePressPos;
m_mousePressPos = pos;
auto vbar = verticalScrollBar();
m_bUpdatingRect = true; // Block scrollbars from updating scene rect to make it possible to do it only once
vbar->setValue(vbar->value() - delta.y());
m_pScrollbar->setValue(m_pScrollbar->value() - delta.x() / m_scale);
m_bUpdatingRect = false;
// Seems like an ugly stub, but QSignalBlocker is also a bad decision
// because if scrollbar does not emit valueChanged signal then viewport does not move
updateVisibleSceneRect(); // Update scene visible rect only once
// Update flicker speed
m_flickerSpeedX += delta.x() >> 1;
m_flickerSpeedY += delta.y() >> 1;
if (!m_flickerTimer.isActive())
{
// If flicker timer is not started, then start it
m_flickerTimer.start(FLICKER_INTERVAL);
}
}
needUpdate = true;
}
if (needUpdate)
{
updateScene(); // repaint scene
}
_event->accept();
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::resizeEvent(QResizeEvent* _event)
{
updateVisibleSceneRect(); // Update scene visible rect only once
updateScene(); // repaint scene
QGraphicsView::resizeEvent(_event);
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::initMode()
{
// TODO: find mode with least number of bugs :)
// There are always some display bugs...
setCacheMode(QGraphicsView::CacheNone);
setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
setOptimizationFlag(QGraphicsView::DontSavePainterState, true);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
connect(verticalScrollBar(), &QScrollBar::valueChanged, this, &This::onScrollbarValueChange);
connect(&m_flickerTimer, &QTimer::timeout, this, &This::onFlickerTimeout);
connect(&::profiler_gui::EASY_GLOBALS.events, &::profiler_gui::ProfGlobalSignals::selectedThreadChanged, this, &This::onSelectedThreadChange);
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::onScrollbarValueChange(int)
{
if (!m_bUpdatingRect && !m_bEmpty)
updateVisibleSceneRect();
}
void ProfGraphicsView::onGraphicsScrollbarValueChange(qreal _value)
{
if (!m_bEmpty)
{
m_offset = _value;
if (!m_bUpdatingRect)
{
updateVisibleSceneRect();
updateScene();
}
}
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::onFlickerTimeout()
{
if (m_mouseButtons & Qt::LeftButton)
{
// Fast slow-down and stop if mouse button is pressed, no flicking.
m_flickerSpeedX >>= 1;
m_flickerSpeedY >>= 1;
}
else
{
// Flick when mouse button is not pressed
auto vbar = verticalScrollBar();
m_bUpdatingRect = true; // Block scrollbars from updating scene rect to make it possible to do it only once
m_pScrollbar->setValue(m_pScrollbar->value() - m_flickerSpeedX / m_scale);
vbar->setValue(vbar->value() - m_flickerSpeedY);
m_bUpdatingRect = false;
// Seems like an ugly stub, but QSignalBlocker is also a bad decision
// because if scrollbar does not emit valueChanged signal then viewport does not move
updateVisibleSceneRect(); // Update scene visible rect only once
updateScene(); // repaint scene
m_flickerSpeedX -= absmin(sign(m_flickerSpeedX), m_flickerSpeedX);
m_flickerSpeedY -= absmin(sign(m_flickerSpeedY), m_flickerSpeedY);
}
if (m_flickerSpeedX == 0 && m_flickerSpeedY == 0)
{
// Flicker stopped, no timer needed.
m_flickerTimer.stop();
}
}
//////////////////////////////////////////////////////////////////////////
void ProfGraphicsView::onSelectedThreadChange(::profiler::thread_id_t _id)
{
if (m_pScrollbar == nullptr || m_pScrollbar->minimapThread() == _id || m_bTest)
{
return;
}
if (_id == 0)
{
m_pScrollbar->setMinimapFrom(0, nullptr);
return;
}
for (auto item : m_items)
{
if (item->threadId() == _id)
{
m_pScrollbar->setMinimapFrom(_id, item->items(0));
updateScene();
return;
}
}
m_pScrollbar->setMinimapFrom(0, nullptr);
updateScene();
}
//////////////////////////////////////////////////////////////////////////
ProfGraphicsViewWidget::ProfGraphicsViewWidget(bool _test)
: QWidget(nullptr)
, m_scrollbar(new ProfGraphicsScrollbar(nullptr))
, m_view(new ProfGraphicsView(_test))
{
auto lay = new QVBoxLayout(this);
lay->setContentsMargins(1, 0, 1, 0);
lay->addWidget(m_view);
lay->setSpacing(1);
lay->addWidget(m_scrollbar);
setLayout(lay);
m_view->setScrollbar(m_scrollbar);
}
ProfGraphicsViewWidget::ProfGraphicsViewWidget(const ::profiler::thread_blocks_tree_t& _blocksTree)
: QWidget(nullptr)
, m_scrollbar(new ProfGraphicsScrollbar(nullptr))
, m_view(new ProfGraphicsView(_blocksTree))
{
auto lay = new QVBoxLayout(this);
lay->setContentsMargins(1, 0, 1, 0);
lay->addWidget(m_view);
lay->setSpacing(1);
lay->addWidget(m_scrollbar);
setLayout(lay);
m_view->setScrollbar(m_scrollbar);
}
ProfGraphicsViewWidget::~ProfGraphicsViewWidget()
{
}
ProfGraphicsView* ProfGraphicsViewWidget::view()
{
return m_view;
}
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////