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https://github.com/Chatterino/chatterino2.git
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101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
#pragma once
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#include "singletons/settingsmanager.hpp"
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#include "widgets/basewidget.hpp"
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#include "widgets/helper/scrollbarhighlight.hpp"
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#include <QMutex>
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#include <QPropertyAnimation>
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#include <QWidget>
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#include <boost/signals2.hpp>
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namespace chatterino {
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class ThemeManager;
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namespace widgets {
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class ChannelView;
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class ScrollBar : public BaseWidget
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{
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Q_OBJECT
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public:
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ScrollBar(ChannelView *parent = 0);
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~ScrollBar();
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void removeHighlightsWhere(std::function<bool(ScrollBarHighlight &)> func);
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void addHighlight(ScrollBarHighlight *highlight);
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Q_PROPERTY(qreal desiredValue READ getDesiredValue WRITE setDesiredValue)
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void scrollToBottom();
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bool isAtBottom() const;
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void setMaximum(qreal value);
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void setMinimum(qreal value);
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void setLargeChange(qreal value);
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void setSmallChange(qreal value);
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void setDesiredValue(qreal value, bool animated = false);
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qreal getMaximum() const;
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qreal getMinimum() const;
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qreal getLargeChange() const;
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qreal getSmallChange() const;
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qreal getDesiredValue() const;
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qreal getCurrentValue() const;
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// offset the desired value without breaking smooth scolling
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void offset(qreal value);
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boost::signals2::signal<void()> &getCurrentValueChanged();
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void setCurrentValue(qreal value);
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void printCurrentState(const QString &prefix = QString()) const;
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protected:
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void paintEvent(QPaintEvent *) override;
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void resizeEvent(QResizeEvent *) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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void mousePressEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void leaveEvent(QEvent *) override;
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private:
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Q_PROPERTY(qreal currentValue READ getCurrentValue WRITE setCurrentValue)
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QMutex mutex;
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QPropertyAnimation currentValueAnimation;
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ScrollBarHighlight *highlights;
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bool atBottom = false;
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int mouseOverIndex = -1;
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int mouseDownIndex = -1;
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QPoint lastMousePosition;
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// int buttonHeight = 16;
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int buttonHeight = 0;
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int trackHeight = 100;
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QRect thumbRect;
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qreal maximum = 0;
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qreal minimum = 0;
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qreal largeChange = 0;
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qreal smallChange = 5;
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qreal desiredValue = 0;
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qreal currentValue = 0;
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qreal smoothScrollingOffset = 0;
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boost::signals2::signal<void()> currentValueChanged;
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pajlada::Settings::Setting<bool> &smoothScrollingSetting;
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void updateScroll();
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};
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} // namespace widgets
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} // namespace chatterino
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