《QT实用小工具·五十四》果冻弹出效果的动画按钮

1、概述
源码放在文章末尾

该项目实现动画按钮,鼠标放在按钮上可以弹性拉出的三个按钮,使用贝塞尔曲线实现,项目demo显示如下所示:

项目部分代码如下所示:

cpp 复制代码
#ifndef WATERCIRCLEBUTTON_H
#define WATERCIRCLEBUTTON_H

#include <QObject>
#include <QWidget>
#include "interactivebuttonbase.h"

class WaterCircleButton : public InteractiveButtonBase
{
public:
    WaterCircleButton(QWidget* parent = nullptr);
    WaterCircleButton(QIcon icon, QWidget* parent = nullptr);
    WaterCircleButton(QPixmap pixmap, QWidget* parent = nullptr);

protected:
    void enterEvent(QEvent* event) override;
    void leaveEvent(QEvent* event) override;
    void mousePressEvent(QMouseEvent* event) override;
    void mouseReleaseEvent(QMouseEvent* event) override;
    void mouseMoveEvent(QMouseEvent* event) override;
    void resizeEvent(QResizeEvent* event) override;

    QPainterPath getBgPainterPath() override;
    QPainterPath getWaterPainterPath(Water water) override;

    void simulateStatePress(bool s = true);
    bool inArea(QPoint point) override;

protected:
    QPoint center_pos;
    bool in_circle;
    int radius;
};

#endif // WATERCIRCLEBUTTON_H
cpp 复制代码
#include "watercirclebutton.h"

WaterCircleButton::WaterCircleButton(QWidget* parent) : InteractiveButtonBase (parent), in_circle(false), radius(16)
{

}

WaterCircleButton::WaterCircleButton(QIcon icon, QWidget *parent) : InteractiveButtonBase (icon, parent), in_circle(false), radius(16)
{

}

WaterCircleButton::WaterCircleButton(QPixmap pixmap, QWidget *parent) : InteractiveButtonBase (pixmap, parent), in_circle(false), radius(16)
{

}

void WaterCircleButton::enterEvent(QEvent *event)
{

}

void WaterCircleButton::leaveEvent(QEvent *event)
{
    if (in_circle && !pressing && !inArea(mapFromGlobal(QCursor::pos())))
    {
        in_circle = false;
        InteractiveButtonBase::leaveEvent(event);
    }
}

void WaterCircleButton::mousePressEvent(QMouseEvent *event)
{
    if (in_circle || (!hovering && inArea(event->pos())))
        return InteractiveButtonBase::mousePressEvent(event);
}

void WaterCircleButton::mouseReleaseEvent(QMouseEvent *event)
{
    if (pressing)
    {
        InteractiveButtonBase::mouseReleaseEvent(event);

        if (leave_after_clicked || (!inArea(event->pos()) && !pressing)) // 鼠标移出
        {
            in_circle = false;
            InteractiveButtonBase::leaveEvent(nullptr);
        }
    }
}

void WaterCircleButton::mouseMoveEvent(QMouseEvent *event)
{
    bool is_in = inArea(event->pos());

    if (is_in && !in_circle)// 鼠标移入
    {
        in_circle = true;
        InteractiveButtonBase::enterEvent(nullptr);
    }
    else if (!is_in && in_circle && !pressing) // 鼠标移出
    {
        in_circle = false;
        InteractiveButtonBase::leaveEvent(nullptr);
    }

    if (in_circle)
        InteractiveButtonBase::mouseMoveEvent(event);
}

void WaterCircleButton::resizeEvent(QResizeEvent *event)
{
    center_pos = geometry().center() - geometry().topLeft();
    radius = min(size().width(), size().height())/ 2;

    return InteractiveButtonBase::resizeEvent(event);
}

QPainterPath WaterCircleButton::getBgPainterPath()
{
    QPainterPath path;
    int w = size().width(), h = size().height();
    QRect rect(w/2-radius, h/2-radius, radius*2, radius*2);
    path.addEllipse(rect);
    return path;
}

QPainterPath WaterCircleButton::getWaterPainterPath(InteractiveButtonBase::Water water)
{
    QPainterPath path = InteractiveButtonBase::getWaterPainterPath(water) & getBgPainterPath();
    return path;
}

void WaterCircleButton::simulateStatePress(bool s)
{
    in_circle = true;
    InteractiveButtonBase::simulateStatePress(s);
    in_circle = false;
}

bool WaterCircleButton::inArea(QPoint point)
{
    return (point - center_pos).manhattanLength() <= radius;
}

源码下载

相关推荐
weixin_437398218 分钟前
转Go学习笔记
linux·服务器·开发语言·后端·架构·golang
津津有味道18 分钟前
Qt C++串口SerialPort通讯发送指令读写NFC M1卡
linux·c++·qt·串口通信·serial·m1·nfc
StrongerIrene18 分钟前
rs build 的process.env的值undefined解决方案
开发语言·javascript·ecmascript
风逸hhh30 分钟前
python打卡day58@浙大疏锦行
开发语言·python
Q_9709563942 分钟前
java+vue+SpringBoo足球社区管理系统(程序+数据库+报告+部署教程+答辩指导)
java·开发语言·数据库
傅里叶的耶1 小时前
C++系列(二):告别低效循环!选择、循环、跳转原理与优化实战全解析
c++·visual studio
Vitta_U1 小时前
MFC的List Control自适应主界面大小
c++·list·mfc
为了更好的明天而战1 小时前
Java 中的 ArrayList 和 LinkedList 区别详解(源码级理解)
java·开发语言
JosieBook1 小时前
【Java编程动手学】Java中的数组与集合
java·开发语言·python
qq_589568102 小时前
element-plus按需自动导入的配置 以及icon图标不显示的问题解决
开发语言·javascript·ecmascript