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643 lines
19 KiB
C++
643 lines
19 KiB
C++
/************************************************************************
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* file name : easy_graphics_scrollbar.cpp
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* ----------------- :
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* creation time : 2016/07/04
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* author : Victor Zarubkin
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* email : v.s.zarubkin@gmail.com
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* ----------------- :
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* description : .
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* ----------------- :
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* change log : * 2016/07/04 Victor Zarubkin: Initial commit.
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* :
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* : *
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* ----------------- :
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* license : Lightweight profiler library for c++
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* : Copyright(C) 2016 Sergey Yagovtsev, Victor Zarubkin
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* :
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* :
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* : Licensed under the Apache License, Version 2.0 (the "License");
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* : you may not use this file except in compliance with the License.
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* : You may obtain a copy of the License at
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* :
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* : http://www.apache.org/licenses/LICENSE-2.0
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* :
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* : Unless required by applicable law or agreed to in writing, software
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* : distributed under the License is distributed on an "AS IS" BASIS,
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* : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* : See the License for the specific language governing permissions and
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* : limitations under the License.
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* :
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* :
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* : GNU General Public License Usage
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* : Alternatively, this file may be used under the terms of the GNU
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* : General Public License as published by the Free Software Foundation,
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* : either version 3 of the License, or (at your option) any later version.
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* :
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* : This program is distributed in the hope that it will be useful,
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* : but WITHOUT ANY WARRANTY; without even the implied warranty of
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* : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* : GNU General Public License for more details.
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* :
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* : You should have received a copy of the GNU General Public License
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* : along with this program.If not, see <http://www.gnu.org/licenses/>.
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************************************************************************/
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#include <algorithm>
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#include <QGraphicsScene>
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#include <QWheelEvent>
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#include <QMouseEvent>
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#include <QResizeEvent>
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#include <QContextMenuEvent>
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#include <QMenu>
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#include "easy_graphics_scrollbar.h"
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#include "globals.h"
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//////////////////////////////////////////////////////////////////////////
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const int DEFAULT_TOP = -40;
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const int DEFAULT_HEIGHT = 80;
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const int INDICATOR_SIZE = 8;
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//////////////////////////////////////////////////////////////////////////
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inline qreal clamp(qreal _minValue, qreal _value, qreal _maxValue)
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{
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return (_value < _minValue ? _minValue : (_value > _maxValue ? _maxValue : _value));
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}
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inline qreal sqr(qreal _value)
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{
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return _value * _value;
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}
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inline qreal calculate_color1(qreal h, qreal k)
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{
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return ::std::min(h * k, 0.9999999);
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}
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inline qreal calculate_color2(qreal h, qreal k)
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{
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return ::std::min(sqr(sqr(h)) * k, 0.9999999);
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}
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//////////////////////////////////////////////////////////////////////////
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EasyGraphicsSliderItem::EasyGraphicsSliderItem(bool _main) : Parent(), m_halfwidth(0), m_bMain(_main)
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{
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m_indicator.reserve(3);
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if (_main)
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{
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m_indicator.push_back(QPointF(0, DEFAULT_TOP + INDICATOR_SIZE));
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m_indicator.push_back(QPointF(-INDICATOR_SIZE, DEFAULT_TOP));
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m_indicator.push_back(QPointF(INDICATOR_SIZE, DEFAULT_TOP));
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}
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else
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{
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m_indicator.push_back(QPointF(0, DEFAULT_TOP + DEFAULT_HEIGHT - INDICATOR_SIZE));
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m_indicator.push_back(QPointF(-INDICATOR_SIZE, DEFAULT_TOP + DEFAULT_HEIGHT));
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m_indicator.push_back(QPointF(INDICATOR_SIZE, DEFAULT_TOP + DEFAULT_HEIGHT));
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}
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setWidth(1);
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setBrush(Qt::SolidPattern);
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}
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EasyGraphicsSliderItem::~EasyGraphicsSliderItem()
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{
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}
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void EasyGraphicsSliderItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget)
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{
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//Parent::paint(_painter, _option, _widget);
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const auto currentScale = static_cast<const EasyGraphicsScrollbar*>(scene()->parent())->getWindowScale();
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const auto br = rect();
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qreal w = width() * currentScale;
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qreal dx = 0;
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// if (w < 1.0)
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// {
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// dx = (w - 1.0) * 0.5;
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// w = 1.0;
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// }
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QRectF r(dx + br.left() * currentScale, br.top() + INDICATOR_SIZE, w, br.height() - (INDICATOR_SIZE << 1));
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const auto r_right = r.right();
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const auto r_bottom = r.bottom();
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auto b = brush();
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_painter->save();
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_painter->setTransform(QTransform::fromScale(1.0 / currentScale, 1), true);
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_painter->setBrush(b);
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if (w > 1)
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{
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_painter->setPen(Qt::NoPen);
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_painter->drawRect(r);
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// Draw left and right borders
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auto cmode = _painter->compositionMode();
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if (m_bMain) _painter->setCompositionMode(QPainter::CompositionMode_Exclusion);
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_painter->setPen(QColor::fromRgba(0xe0000000 | b.color().rgb()));
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_painter->drawLine(QPointF(r.left(), r.top()), QPointF(r.left(), r_bottom));
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_painter->drawLine(QPointF(r_right, r.top()), QPointF(r_right, r_bottom));
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if (!m_bMain) _painter->setCompositionMode(cmode);
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}
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else
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{
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_painter->setPen(QColor::fromRgba(0xe0000000 | b.color().rgb()));
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_painter->drawLine(QPointF(r.left(), r.top()), QPointF(r.left(), r_bottom));
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if (m_bMain) _painter->setCompositionMode(QPainter::CompositionMode_Exclusion);
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}
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// Draw triangle indicators for small slider
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_painter->setTransform(QTransform::fromTranslate(r.left() + w * 0.5, 0), true);
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_painter->setPen(b.color().rgb());
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_painter->drawPolygon(m_indicator);
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_painter->restore();
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}
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qreal EasyGraphicsSliderItem::width() const
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{
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return m_halfwidth * 2.0;
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}
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qreal EasyGraphicsSliderItem::halfwidth() const
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{
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return m_halfwidth;
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}
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void EasyGraphicsSliderItem::setWidth(qreal _width)
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{
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m_halfwidth = _width * 0.5;
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setRect(-m_halfwidth, DEFAULT_TOP, _width, DEFAULT_HEIGHT);
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}
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void EasyGraphicsSliderItem::setHalfwidth(qreal _halfwidth)
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{
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m_halfwidth = _halfwidth;
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setRect(-m_halfwidth, DEFAULT_TOP, m_halfwidth * 2.0, DEFAULT_HEIGHT);
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}
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void EasyGraphicsSliderItem::setColor(QRgb _color)
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{
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setColor(QColor::fromRgba(_color));
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}
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void EasyGraphicsSliderItem::setColor(const QColor& _color)
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{
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auto b = brush();
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b.setColor(_color);
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setBrush(b);
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}
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//////////////////////////////////////////////////////////////////////////
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EasyMinimapItem::EasyMinimapItem() : Parent(), m_pSource(nullptr), m_maxDuration(0), m_minDuration(0), m_threadId(0)
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{
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}
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EasyMinimapItem::~EasyMinimapItem()
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{
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}
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QRectF EasyMinimapItem::boundingRect() const
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{
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return m_boundingRect;
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}
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void EasyMinimapItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget)
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{
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if (m_pSource == nullptr)
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{
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return;
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}
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const auto currentScale = static_cast<const EasyGraphicsScrollbar*>(scene()->parent())->getWindowScale();
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const auto bottom = m_boundingRect.bottom();
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const auto coeff = m_boundingRect.height() / (m_maxDuration - m_minDuration);
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const auto heightRevert = 1.0 / m_boundingRect.height();
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QRectF rect;
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QBrush brush(Qt::SolidPattern);
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QRgb previousColor = 0;
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//brush.setColor(QColor::fromRgba(0x80808080));
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_painter->save();
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_painter->setPen(Qt::NoPen);
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//_painter->setBrush(brush);
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_painter->setTransform(QTransform::fromScale(1.0 / currentScale, 1), true);
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const bool gotFrame = EASY_GLOBALS.frame_time > 1e-6f;
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qreal frameCoeff = 1;
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if (gotFrame)
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{
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if (EASY_GLOBALS.frame_time <= m_minDuration)
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frameCoeff = 0;
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else
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frameCoeff = 0.9 * (m_maxDuration - m_minDuration) / (EASY_GLOBALS.frame_time - m_minDuration);
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}
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auto const calculate_color = gotFrame ? calculate_color2 : calculate_color1;
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auto const k = gotFrame ? sqr(sqr(heightRevert * frameCoeff)) : heightRevert;
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qreal previous_x = -1e30, previous_h = -1e30;
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auto& items = *m_pSource;
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for (const auto& item : items)
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{
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// Draw rectangle
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qreal item_x = item.left() * currentScale;
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qreal item_w = ::std::max(item.width() * currentScale, 1.0);
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qreal item_r = item_x + item_w;
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const auto h = ::std::max((item.width() - m_minDuration) * coeff, 2.0);
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if (h < previous_h && item_r < previous_x)
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continue;
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const auto col = calculate_color(h, k);
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const auto color = 0x00ffffff & QColor::fromHsvF((1.0 - col) * 0.375, 0.85, 0.85).rgb();
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if (previousColor != color)
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{
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// Set background color brush for rectangle
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previousColor = color;
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brush.setColor(QColor::fromRgba(0xc0000000 | color));
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_painter->setBrush(brush);
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}
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rect.setRect(item_x, bottom - h, item_w, h);
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_painter->drawRect(rect);
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previous_x = item_r;
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previous_h = h;
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}
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_painter->setPen(Qt::darkGray);
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_painter->drawLine(QLineF(0, bottom, m_boundingRect.width(), bottom));
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_painter->drawLine(QLineF(0, m_boundingRect.top(), m_boundingRect.width(), m_boundingRect.top()));
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if (m_minDuration < EASY_GLOBALS.frame_time && EASY_GLOBALS.frame_time < m_maxDuration)
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{
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// Draw marker displaying required frame_time step
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const auto h = bottom - (EASY_GLOBALS.frame_time - m_minDuration) * coeff;
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_painter->setPen(Qt::DashLine);
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_painter->drawLine(QLineF(0, h, m_boundingRect.width(), h));
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}
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_painter->restore();
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}
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::profiler::thread_id_t EasyMinimapItem::threadId() const
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{
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return m_threadId;
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}
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void EasyMinimapItem::setBoundingRect(const QRectF& _rect)
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{
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m_boundingRect = _rect;
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}
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void EasyMinimapItem::setBoundingRect(qreal x, qreal y, qreal w, qreal h)
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{
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m_boundingRect.setRect(x, y, w, h);
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}
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void EasyMinimapItem::setSource(::profiler::thread_id_t _thread_id, const ::profiler_gui::EasyItems* _items)
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{
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m_pSource = _items;
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m_threadId = _thread_id;
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if (m_pSource)
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{
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if (m_pSource->empty())
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{
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m_pSource = nullptr;
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}
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else
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{
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m_maxDuration = 0;
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m_minDuration = 1e30;
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for (const auto& item : *m_pSource)
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{
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auto w = item.width();
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if (w > m_maxDuration)
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{
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m_maxDuration = item.width();
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}
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if (w < m_minDuration)
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{
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m_minDuration = w;
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}
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}
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}
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}
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if (m_pSource == nullptr)
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{
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hide();
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}
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else
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{
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show();
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}
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}
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//////////////////////////////////////////////////////////////////////////
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EasyGraphicsScrollbar::EasyGraphicsScrollbar(QWidget* _parent)
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: Parent(_parent)
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, m_minimumValue(0)
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, m_maximumValue(500)
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, m_value(10)
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, m_windowScale(1)
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, m_mouseButtons(Qt::NoButton)
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, m_slider(nullptr)
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, m_chronometerIndicator(nullptr)
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, m_minimap(nullptr)
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, m_bScrolling(false)
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{
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setCacheMode(QGraphicsView::CacheNone);
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setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
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//setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
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setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
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setOptimizationFlag(QGraphicsView::DontSavePainterState, true);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setContentsMargins(0, 0, 0, 0);
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setFixedHeight(DEFAULT_HEIGHT + 2);
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auto selfScene = new QGraphicsScene(this);
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selfScene->setSceneRect(0, DEFAULT_TOP, 500, DEFAULT_HEIGHT);
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setScene(selfScene);
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m_minimap = new EasyMinimapItem();
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m_minimap->setPos(0, 0);
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m_minimap->setBoundingRect(0, DEFAULT_TOP + INDICATOR_SIZE, scene()->width(), DEFAULT_HEIGHT - (INDICATOR_SIZE << 1));
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selfScene->addItem(m_minimap);
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m_minimap->hide();
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m_chronometerIndicator = new EasyGraphicsSliderItem(false);
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m_chronometerIndicator->setPos(0, 0);
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m_chronometerIndicator->setColor(0x40000000 | ::profiler_gui::CHRONOMETER_COLOR.rgba());
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selfScene->addItem(m_chronometerIndicator);
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m_chronometerIndicator->hide();
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m_slider = new EasyGraphicsSliderItem(true);
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m_slider->setPos(0, 0);
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m_slider->setColor(0x40c0c0c0);
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selfScene->addItem(m_slider);
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m_slider->hide();
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connect(&EASY_GLOBALS.events, &::profiler_gui::EasyGlobalSignals::timelineMarkerChanged, [this](){ scene()->update(); });
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centerOn(0, 0);
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}
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EasyGraphicsScrollbar::~EasyGraphicsScrollbar()
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{
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}
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//////////////////////////////////////////////////////////////////////////
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void EasyGraphicsScrollbar::clear()
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{
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setMinimapFrom(0, nullptr);
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hideChrono();
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setRange(0, 100);
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setSliderWidth(2);
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setValue(0);
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}
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//////////////////////////////////////////////////////////////////////////
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qreal EasyGraphicsScrollbar::getWindowScale() const
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{
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return m_windowScale;
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}
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::profiler::thread_id_t EasyGraphicsScrollbar::minimapThread() const
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{
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return m_minimap->threadId();
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}
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qreal EasyGraphicsScrollbar::minimum() const
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{
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return m_minimumValue;
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}
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qreal EasyGraphicsScrollbar::maximum() const
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{
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return m_maximumValue;
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}
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qreal EasyGraphicsScrollbar::range() const
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{
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return m_maximumValue - m_minimumValue;
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}
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qreal EasyGraphicsScrollbar::value() const
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{
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return m_value;
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}
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qreal EasyGraphicsScrollbar::sliderWidth() const
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{
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return m_slider->width();
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}
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qreal EasyGraphicsScrollbar::sliderHalfWidth() const
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{
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return m_slider->halfwidth();
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}
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//////////////////////////////////////////////////////////////////////////
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void EasyGraphicsScrollbar::setValue(qreal _value)
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{
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m_value = clamp(m_minimumValue, _value, ::std::max(m_minimumValue, m_maximumValue - m_slider->width()));
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m_slider->setX(m_value + m_slider->halfwidth());
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emit valueChanged(m_value);
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}
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void EasyGraphicsScrollbar::setRange(qreal _minValue, qreal _maxValue)
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{
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const auto oldRange = range();
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const auto oldValue = oldRange < 1e-3 ? 0.0 : m_value / oldRange;
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m_minimumValue = _minValue;
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m_maximumValue = _maxValue;
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scene()->setSceneRect(_minValue, DEFAULT_TOP, _maxValue - _minValue, DEFAULT_HEIGHT);
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m_minimap->setBoundingRect(_minValue, DEFAULT_TOP + INDICATOR_SIZE, _maxValue, DEFAULT_HEIGHT - (INDICATOR_SIZE << 1));
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emit rangeChanged();
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setValue(_minValue + oldValue * range());
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onWindowWidthChange(width());
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}
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void EasyGraphicsScrollbar::setSliderWidth(qreal _width)
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{
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m_slider->setWidth(_width);
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setValue(m_value);
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}
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//////////////////////////////////////////////////////////////////////////
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void EasyGraphicsScrollbar::setChronoPos(qreal _left, qreal _right)
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{
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m_chronometerIndicator->setWidth(_right - _left);
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m_chronometerIndicator->setX(_left + m_chronometerIndicator->halfwidth());
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}
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void EasyGraphicsScrollbar::showChrono()
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{
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m_chronometerIndicator->show();
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}
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void EasyGraphicsScrollbar::hideChrono()
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{
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m_chronometerIndicator->hide();
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}
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//////////////////////////////////////////////////////////////////////////
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void EasyGraphicsScrollbar::setMinimapFrom(::profiler::thread_id_t _thread_id, const ::profiler_gui::EasyItems* _items)
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{
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m_minimap->setSource(_thread_id, _items);
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m_slider->setVisible(m_minimap->isVisible());
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scene()->update();
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}
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//////////////////////////////////////////////////////////////////////////
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void EasyGraphicsScrollbar::mousePressEvent(QMouseEvent* _event)
|
|
{
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m_mouseButtons = _event->buttons();
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|
|
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if (m_mouseButtons & Qt::LeftButton)
|
|
{
|
|
m_bScrolling = true;
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|
m_mousePressPos = _event->pos();
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setValue(mapToScene(m_mousePressPos).x() - m_minimumValue - m_slider->halfwidth());
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}
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|
|
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_event->accept();
|
|
//QGraphicsView::mousePressEvent(_event);
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|
}
|
|
|
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void EasyGraphicsScrollbar::mouseReleaseEvent(QMouseEvent* _event)
|
|
{
|
|
m_mouseButtons = _event->buttons();
|
|
m_bScrolling = false;
|
|
_event->accept();
|
|
//QGraphicsView::mouseReleaseEvent(_event);
|
|
}
|
|
|
|
void EasyGraphicsScrollbar::mouseMoveEvent(QMouseEvent* _event)
|
|
{
|
|
if (m_mouseButtons & Qt::LeftButton)
|
|
{
|
|
const auto pos = _event->pos();
|
|
const auto delta = pos - m_mousePressPos;
|
|
m_mousePressPos = pos;
|
|
|
|
if (m_bScrolling)
|
|
{
|
|
setValue(m_value + delta.x() / m_windowScale);
|
|
}
|
|
}
|
|
}
|
|
|
|
void EasyGraphicsScrollbar::wheelEvent(QWheelEvent* _event)
|
|
{
|
|
auto w = m_slider->halfwidth() * (_event->delta() < 0 ? ::profiler_gui::SCALING_COEFFICIENT : ::profiler_gui::SCALING_COEFFICIENT_INV);
|
|
setValue(mapToScene(_event->pos()).x() - m_minimumValue - w);
|
|
emit wheeled(w * m_windowScale, _event->delta());
|
|
_event->accept();
|
|
}
|
|
|
|
void EasyGraphicsScrollbar::resizeEvent(QResizeEvent* _event)
|
|
{
|
|
onWindowWidthChange(_event->size().width());
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
void EasyGraphicsScrollbar::contextMenuEvent(QContextMenuEvent* _event)
|
|
{
|
|
if (EASY_GLOBALS.profiler_blocks.empty())
|
|
{
|
|
return;
|
|
}
|
|
|
|
QMenu menu;
|
|
|
|
for (const auto& it : EASY_GLOBALS.profiler_blocks)
|
|
{
|
|
QString label;
|
|
if (it.second.got_name())
|
|
label = ::std::move(QString("%1 Thread %2").arg(it.second.name()).arg(it.first));
|
|
else
|
|
label = ::std::move(QString("Thread %1").arg(it.first));
|
|
|
|
auto action = new QAction(label, nullptr);
|
|
action->setData(it.first);
|
|
action->setCheckable(true);
|
|
action->setChecked(it.first == EASY_GLOBALS.selected_thread);
|
|
connect(action, &QAction::triggered, this, &This::onThreadActionClicked);
|
|
|
|
menu.addAction(action);
|
|
}
|
|
|
|
menu.exec(QCursor::pos());
|
|
_event->accept();
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
void EasyGraphicsScrollbar::onThreadActionClicked(bool)
|
|
{
|
|
auto action = qobject_cast<QAction*>(sender());
|
|
if (action == nullptr)
|
|
return;
|
|
|
|
const auto thread_id = action->data().toUInt();
|
|
if (thread_id != EASY_GLOBALS.selected_thread)
|
|
{
|
|
EASY_GLOBALS.selected_thread = thread_id;
|
|
emit EASY_GLOBALS.events.selectedThreadChanged(thread_id);
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
void EasyGraphicsScrollbar::onWindowWidthChange(qreal _width)
|
|
{
|
|
const auto oldScale = m_windowScale;
|
|
const auto scrollingRange = range();
|
|
|
|
if (scrollingRange < 1e-3)
|
|
{
|
|
m_windowScale = 1;
|
|
}
|
|
else
|
|
{
|
|
m_windowScale = _width / scrollingRange;
|
|
}
|
|
|
|
scale(m_windowScale / oldScale, 1);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|