54 lines
1.7 KiB
C++
Executable File
54 lines
1.7 KiB
C++
Executable File
/*****************************************************************
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* @file FocusWindow.h
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* @brief 让qt窗体焦点能够上下左右移动的类，内部实现全部来自android源码焦点移动部分。
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* 在使用的时候需要继承这个类即可并重写getAllFocusabelWidget方法。
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* @author luoxiang
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* @date May 23 2024
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****************************************************************/
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#include <qwidget.h>
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#ifndef FOCUS_WINDOW_H
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#define FOCUS_WINDOW_H
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namespace FW
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{
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class FocusWindow
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{
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public:
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// 焦点移动方向
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enum Direction
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{
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Up,
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Down,
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Left,
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Right
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};
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void focusNext(Direction direction);
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protected:
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// 纯虚函数，让子类重写以获取当前窗体的所有可以获得焦点的控件。
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virtual QList<QWidget*> getAllFocusabelWidget() = 0;
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private:
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QList<QWidget*> focusableList;
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private:
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// 与焦点移动相关的函数
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QWidget* getNextFocusWidget(Direction direction);
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bool isCandidate(QRect focused, QRect focusable, Direction direction);
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bool isBetterCandidate(Direction direction, QRect focused, QRect focusable, QRect curCandidate);
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bool beamBeats(Direction dircetion, QRect source, QRect rect1, QRect rect2);
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bool beamsOverlap(Direction direction, QRect rect1, QRect rect2);
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bool isToDirectionOf(Direction direction, QRect source, QRect dest);
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int majorAxisDistance(Direction direction, QRect source, QRect dest);
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int majorAxisDistanceRaw(Direction direction, QRect source, QRect dest);
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int minorAxisDistance(Direction direction, QRect source, QRect dest);
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int getWeightDistanceFor(int majorAxisDistance, int minorAxisDistance);
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int majorAxisDistanceToFarEdge(Direction dircetion, QRect source, QRect dest);
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int majorAxisDistanceToFarEdgeRaw(Direction dircetion, QRect source, QRect dest);
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};
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}
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#endif // !FOCUS_WINDOW_H
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