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https://github.com/yse/easy_profiler.git
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92a5ca4a75
* update copyright * fix css parsing * fix block name search * add matching text highlighing for find results * add calculation of block statistics for selected area * new action: right-click on a block on "Diagram" selects region using left and right bounds of this block * other optimizations
149 lines
5.5 KiB
C++
149 lines
5.5 KiB
C++
/************************************************************************
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* file name : graphics_image_item.h
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* ----------------- :
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* creation time : 2018/01/20
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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 : The file contains declaration of GraphicsImageItem - an item
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* : used to display, scroll and zoom QImage on graphics scene.
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* ----------------- :
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* license : Lightweight profiler library for c++
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* : Copyright(C) 2016-2019 Sergey Yagovtsev, Victor Zarubkin
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* :
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* : Licensed under either of
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* : * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
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* : * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
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* : at your option.
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* :
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* : The MIT License
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* :
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* : Permission is hereby granted, free of charge, to any person obtaining a copy
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* : of this software and associated documentation files (the "Software"), to deal
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* : in the Software without restriction, including without limitation the rights
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* : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* : of the Software, and to permit persons to whom the Software is furnished
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* : to do so, subject to the following conditions:
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* :
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* : The above copyright notice and this permission notice shall be included in all
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* : copies or substantial portions of the Software.
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* :
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* : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* : INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* : PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* : TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* : USE OR OTHER DEALINGS IN THE SOFTWARE.
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* :
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* : The Apache License, Version 2.0 (the "License")
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* :
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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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#ifndef EASY_PROFILER_GRAPHICS_IMAGE_ITEM_H
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#define EASY_PROFILER_GRAPHICS_IMAGE_ITEM_H
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#include <QGraphicsItem>
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#include <atomic>
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#include "timer.h"
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#include "thread_pool_task.h"
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class GraphicsImageItem : public QGraphicsItem
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{
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protected:
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using Parent = QGraphicsItem;
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using This = GraphicsImageItem;
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QRectF m_boundingRect;
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QImage m_image;
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Timer m_boundaryTimer;
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ThreadPoolTask m_worker;
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QPointF m_mousePos;
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QImage* m_workerImage;
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qreal m_imageOrigin;
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qreal m_imageScale;
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qreal m_imageOriginUpdate;
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qreal m_imageScaleUpdate;
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qreal m_workerImageOrigin;
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qreal m_workerImageScale;
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qreal m_topValue;
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qreal m_bottomValue;
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qreal m_maxValue;
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qreal m_minValue;
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bool m_bEmpty;
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std::atomic_bool m_bReady;
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private:
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Timer m_timer;
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bool m_bPermitImageUpdate; ///< Is false when m_workerThread is parsing input dataset (when setSource(_block_id) is called)
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public:
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explicit GraphicsImageItem();
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~GraphicsImageItem() override;
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QRectF boundingRect() const override;
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virtual bool pickTopValue();
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virtual bool increaseTopValue();
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virtual bool decreaseTopValue();
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virtual bool pickBottomValue();
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virtual bool increaseBottomValue();
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virtual bool decreaseBottomValue();
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virtual bool updateImage();
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virtual void onModeChanged();
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protected:
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virtual void onImageUpdated();
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public:
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bool isEmpty() const;
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void onValueChanged();
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void setMousePos(const QPointF& pos);
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void setMousePos(qreal x, qreal y);
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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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bool cancelImageUpdate();
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protected:
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void setEmpty(bool empty);
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void paintImage(QPainter* _painter);
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void paintImage(QPainter* _painter, qreal _scale, qreal _sceneLeft, qreal _sceneRight,
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qreal _visibleRegionLeft, qreal _visibleRegionWidth);
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void setImageUpdatePermitted(bool _permit);
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bool isImageUpdatePermitted() const;
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void cancelAnyJob();
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void resetTopBottomValues();
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bool isReady() const;
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void setReady(bool _ready);
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void startTimer();
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void stopTimer();
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private:
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void onTimeout();
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}; // end of class GraphicsImageItem.
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#endif //EASY_PROFILER_GRAPHICS_IMAGE_ITEM_H
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