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297 lines
10 KiB
C++
297 lines
10 KiB
C++
/************************************************************************
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* file name : easy_graphics_scrollbar.h
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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 : This file contains declaration of
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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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#ifndef EASY__GRAPHICS_SCROLLBAR__H
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#define EASY__GRAPHICS_SCROLLBAR__H
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#include <stdlib.h>
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#include <thread>
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#include <atomic>
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#include <QGraphicsView>
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#include <QGraphicsRectItem>
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#include <QAction>
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#include <QPolygonF>
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#include <QImage>
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#include "easy_qtimer.h"
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#include "common_types.h"
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//////////////////////////////////////////////////////////////////////////
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// TODO: use profiler_core/spin_lock.h
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#define EASY_GUI_USE_CRITICAL_SECTION // Use CRITICAL_SECTION instead of std::atomic_flag
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#if defined(_WIN32) && defined(EASY_GUI_USE_CRITICAL_SECTION)
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namespace profiler_gui {
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// std::atomic_flag on Windows works slower than critical section, so we will use it instead of std::atomic_flag...
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// By the way, Windows critical sections are slower than std::atomic_flag on Unix.
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class spin_lock { void* m_lock; public:
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void lock();
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void unlock();
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spin_lock();
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~spin_lock();
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};
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#else
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namespace profiler_gui {
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// std::atomic_flag on Unix works fine and very fast (almost instant!)
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class spin_lock {
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::std::atomic_flag m_lock; public:
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void lock() {
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while (m_lock.test_and_set(::std::memory_order_acquire));
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}
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void unlock() {
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m_lock.clear(::std::memory_order_release);
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}
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spin_lock() {
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m_lock.clear();
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}
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};
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#endif
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} // END of namespace profiler_gui.
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//////////////////////////////////////////////////////////////////////////
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class EasyGraphicsSliderItem : public QGraphicsRectItem
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{
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typedef QGraphicsRectItem Parent;
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typedef EasyGraphicsSliderItem This;
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private:
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QPolygonF m_indicator;
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qreal m_halfwidth;
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bool m_bMain;
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public:
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explicit EasyGraphicsSliderItem(bool _main);
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virtual ~EasyGraphicsSliderItem();
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void paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget = nullptr) override;
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qreal width() const;
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qreal halfwidth() const;
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void setWidth(qreal _width);
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void setHalfwidth(qreal _halfwidth);
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void setColor(QRgb _color);
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void setColor(const QColor& _color);
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}; // END of class EasyGraphicsSliderItem.
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//////////////////////////////////////////////////////////////////////////
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class EasyHystogramItem : public QGraphicsItem
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{
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typedef QGraphicsItem Parent;
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typedef EasyHystogramItem This;
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enum HystRegime : uint8_t { Hyst_Pointer, Hyst_Id };
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QRectF m_boundingRect;
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qreal m_maxDuration;
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qreal m_minDuration;
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QString m_maxDurationStr;
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QString m_minDurationStr;
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QString m_threadName;
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::profiler::BlocksTree::children_t m_selectedBlocks;
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QImage m_mainImage;
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EasyQTimer m_timer;
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::std::thread m_workerThread;
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::profiler::timestamp_t m_threadDuration;
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::profiler::timestamp_t m_threadProfiledTime;
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::profiler::timestamp_t m_threadWaitTime;
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const ::profiler_gui::EasyItems* m_pSource;
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QImage* m_temporaryImage;
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const ::profiler::BlocksTreeRoot* m_pProfilerThread;
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::profiler::thread_id_t m_threadId;
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::profiler::block_index_t m_blockId;
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int m_timeouts;
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::profiler_gui::TimeUnits m_timeUnits;
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HystRegime m_regime;
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bool m_bUpdatingImage;
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::profiler_gui::spin_lock m_spin;
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::std::atomic_bool m_bReady;
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public:
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explicit EasyHystogramItem();
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virtual ~EasyHystogramItem();
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// Public virtual methods
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QRectF boundingRect() const override;
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void paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget = nullptr) override;
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public:
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// Public non-virtual methods
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::profiler::thread_id_t threadId() const;
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void setBoundingRect(const QRectF& _rect);
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void setBoundingRect(qreal x, qreal y, qreal w, qreal h);
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void setSource(::profiler::thread_id_t _thread_id, const ::profiler_gui::EasyItems* _items);
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void setSource(::profiler::thread_id_t _thread_id, ::profiler::block_id_t _block_id);
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void validateName();
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void updateImage();
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private:
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void paintByPtr(QPainter* _painter);
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void paintById(QPainter* _painter);
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void onTimeout();
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void updateImage(HystRegime _regime, qreal _current_scale,
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qreal _minimum, qreal _maximum, qreal _range,
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qreal _value, qreal _width, bool _bindMode,
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float _frame_time, ::profiler::timestamp_t _begin_time);
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}; // END of class EasyHystogramItem.
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//////////////////////////////////////////////////////////////////////////
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class EasyGraphicsScrollbar : public QGraphicsView
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{
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Q_OBJECT
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private:
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typedef QGraphicsView Parent;
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typedef EasyGraphicsScrollbar This;
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qreal m_minimumValue;
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qreal m_maximumValue;
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qreal m_value;
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qreal m_windowScale;
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QPoint m_mousePressPos;
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Qt::MouseButtons m_mouseButtons;
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EasyGraphicsSliderItem* m_slider;
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EasyGraphicsSliderItem* m_chronometerIndicator;
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EasyHystogramItem* m_hystogramItem;
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int m_defaultFontHeight;
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bool m_bScrolling;
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bool m_bBindMode;
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bool m_bLocked;
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public:
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explicit EasyGraphicsScrollbar(QWidget* _parent = nullptr);
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virtual ~EasyGraphicsScrollbar();
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// Public virtual methods
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void mousePressEvent(QMouseEvent* _event) override;
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void mouseReleaseEvent(QMouseEvent* _event) override;
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void mouseMoveEvent(QMouseEvent* _event) override;
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void wheelEvent(QWheelEvent* _event) override;
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void resizeEvent(QResizeEvent* _event) override;
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//void contextMenuEvent(QContextMenuEvent* _event) override;
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void dragEnterEvent(QDragEnterEvent*) override {}
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public:
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// Public non-virtual methods
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void clear();
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bool bindMode() const;
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qreal getWindowScale() const;
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::profiler::thread_id_t hystThread() const;
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qreal minimum() const;
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qreal maximum() const;
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qreal range() const;
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qreal value() const;
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qreal sliderWidth() const;
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qreal sliderHalfWidth() const;
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int defaultFontHeight() const;
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void setValue(qreal _value);
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void setRange(qreal _minValue, qreal _maxValue);
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void setSliderWidth(qreal _width);
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void setChronoPos(qreal _left, qreal _right);
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void showChrono();
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void hideChrono();
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void setHystogramFrom(::profiler::thread_id_t _thread_id, const::profiler_gui::EasyItems* _items);
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void setHystogramFrom(::profiler::thread_id_t _thread_id, ::profiler::block_id_t _block_id);
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inline void setHystogramFrom(::profiler::thread_id_t _thread_id, const ::profiler_gui::EasyItems& _items)
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{
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setHystogramFrom(_thread_id, &_items);
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}
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inline void lock()
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{
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m_bLocked = true;
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}
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inline void unlock()
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{
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m_bLocked = false;
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}
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signals:
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void rangeChanged();
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void valueChanged(qreal _value);
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void wheeled(qreal _mouseX, int _wheelDelta);
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private slots:
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void onThreadActionClicked(bool);
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void onWindowWidthChange(qreal _width);
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}; // END of class EasyGraphicsScrollbar.
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//////////////////////////////////////////////////////////////////////////
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#endif // EASY__GRAPHICS_SCROLLBAR__H
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