drag_container.h

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#pragma once
 
#include <QWidget>
#include <qlabel.h>
#include "ui_drag_container.h"
 
class grip_frame : public QFrame
{
public:
    grip_frame();
 
    void paintEvent(QPaintEvent* event) override;
};
 
class drag_container : public QWidget
{
    Q_OBJECT
 
private:
    Ui::drag_container ui;
 
    grip_frame* frame_grip = nullptr;
    QLabel* label = nullptr;
    QPoint click_point = QPoint(0,0);
    QPoint current_point = QPoint(0, 0);
    float move_distance = 0.0f;
    bool click_start = false;
    bool dragging = false;
 
    void update_debug_info();
 
public:
    drag_container(QWidget *parent = Q_NULLPTR);
    ~drag_container();
 
    void mousePressEvent(QMouseEvent* mouse_event) override;
    void mouseMoveEvent(QMouseEvent* event) override;
    void mouseReleaseEvent(QMouseEvent* mouse_event) override;
};