0
0
mirror of https://github.com/yse/easy_profiler.git synced 2024-12-25 23:40:51 +08:00
easy_profiler/profiler_gui/graphics_slider_area.h

177 lines
5.5 KiB
C++

/**
Lightweight profiler library for c++
Copyright(C) 2016-2019 Sergey Yagovtsev, Victor Zarubkin
Licensed under either of
* MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
* Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
at your option.
The MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
The Apache License, Version 2.0 (the "License");
You may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
**/
#ifndef EASY_PROFILER_GRAPHICS_SLIDER_AREA_H
#define EASY_PROFILER_GRAPHICS_SLIDER_AREA_H
#include <stdlib.h>
#include <QGraphicsView>
#include <QGraphicsRectItem>
#include <QAction>
#include <QPolygonF>
#include "common_types.h"
#include "graphics_image_item.h"
//////////////////////////////////////////////////////////////////////////
class GraphicsSliderItem : public QGraphicsRectItem
{
using Parent = QGraphicsRectItem;
using This = GraphicsSliderItem;
private:
QPolygonF m_indicator;
qreal m_halfwidth;
bool m_bMain;
public:
explicit GraphicsSliderItem(int _size, bool _main);
~GraphicsSliderItem() override;
void paint(QPainter* _painter, const QStyleOptionGraphicsItem* _option, QWidget* _widget) override;
qreal width() const;
qreal halfwidth() const;
void setWidth(qreal _width);
void setHalfwidth(qreal _halfwidth);
void setColor(QRgb _color);
void setColor(const QColor& _color);
}; // END of class GraphicsSliderItem.
//////////////////////////////////////////////////////////////////////////
class GraphicsSliderArea : public QGraphicsView
{
Q_OBJECT
using Parent = QGraphicsView;
using This = GraphicsSliderArea;
protected:
qreal m_minimumValue;
qreal m_maximumValue;
qreal m_value;
qreal m_windowScale;
QPoint m_mousePressPos;
Qt::MouseButtons m_mouseButtons;
GraphicsSliderItem* m_slider;
GraphicsSliderItem* m_selectionIndicator;
GraphicsImageItem* m_imageItem;
int m_fontHeight;
bool m_bScrolling;
bool m_bBindMode;
bool m_bLocked;
bool m_bUpdatingPos;
bool m_bEmitChange;
bool m_bValidated;
public:
explicit GraphicsSliderArea(QWidget* _parent = nullptr);
~GraphicsSliderArea() override;
// Public virtual methods
void showEvent(QShowEvent* _event) override;
void mousePressEvent(QMouseEvent* _event) override;
void mouseReleaseEvent(QMouseEvent* _event) override;
void mouseMoveEvent(QMouseEvent* _event) override;
void wheelEvent(QWheelEvent* _event) override;
void resizeEvent(QResizeEvent* _event) override;
void dragEnterEvent(QDragEnterEvent*) override {}
void contextMenuEvent(QContextMenuEvent*) override {}
virtual void clear();
public:
// Public non-virtual methods
bool bindMode() const;
qreal getWindowScale() const;
qreal minimum() const;
qreal maximum() const;
qreal range() const;
qreal value() const;
qreal sliderWidth() const;
qreal sliderHalfWidth() const;
int fontHeight() const;
int margin() const;
int margins() const;
bool setValue(qreal _value);
void setRange(qreal _minValue, qreal _maxValue);
void setSliderWidth(qreal _width);
void setSelectionPos(qreal _left, qreal _right);
void showSelectionIndicator();
void hideSelectionIndicator();
protected:
virtual bool canShowSlider() const;
void validateScene();
public slots:
void lock() { m_bLocked = true; }
void unlock() { m_bLocked = false; }
protected slots:
void onExternalSliderWidthChanged(qreal _width);
void onExternalChartSliderChanged(qreal _pos);
void onSceneSizeChanged(qreal _left, qreal _right);
void onWindowWidthChange(qreal _width);
}; // END of class GraphicsSliderArea.
//////////////////////////////////////////////////////////////////////////
#endif //EASY_PROFILER_GRAPHICS_SLIDER_AREA_H