Qpropertyanimation use and toast case list in QT

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0 introduce

I learned about animation recently , Inadvertently come into contact with the use QPropertyAnimation To complete similar toast The effect of things

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The main function ：
1、toast The implementation position can be changed according to the parent window ;
2、 The default display time is one minute , Adjustable

1、QPropertyAnimation Built in effect

QPropertyAnimation yes Qt Built in animation class , This class can realize simple control animation effect , For example, the movement of controls 、 The zoom 、 Opacity these to animate （ Before using an effect, you need to use setPropertyName Function to specify the required animation attribute name , The following three are Qt Defined ）.

1、 Move （pos）： It mainly realizes the mobile effect , Such as moving from one point to another , The type of variable used is QPoint etc. .
2、 The zoom （geometry）： Zoom and move effects can be achieved , This property can realize the scaling of the specified control , And it can move on the basis of scaling .
3、 The opacity （windowOpacity）： Realize the transparency setting of the control （ However, this attribute can only be used for top-level windows , These are not valid for normal controls ）.

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2、QPropertyAnimation Custom effects

See citation .

3、QPropertyAnimation toast Realization

1.toast The header file

The code is as follows （ Example ）：

#ifndef TOAST_H
#define TOAST_H

#include <QtWidgets/QWidget>
#include <QLabel>


class Toast : public QWidget
{
    
    Q_OBJECT
public:
    Toast(QWidget *parent = Q_NULLPTR);
    ~Toast();

    void setText(const QString& text);
    void showAnimation(int timeout = 500);
    void movetoPosition(int x,int y);
    static void showTip(const QString& text,int x,int y,QWidget* parent = nullptr);

private:
    QLabel *label = nullptr;
    QWidget *widget = nullptr;
};

#endif // TOAST_H

2.toast cpp

The code is as follows （ Example ）：

#include "toast.h"
#include <QPropertyAnimation>
#include <QScreen>
#include <QGuiApplication>
#include <QPainter>
#include <QTimer>
#include <QDebug>
#include <QGridLayout>

Toast::Toast(QWidget *parent)
    : QWidget(parent)
{
    

    label = new QLabel();
    label->setStyleSheet("background-color: rgba(0,0,0,0.80);\nborder-radius: 26px;\ncolor: #FFFFFF;\nfont-family: microsoft yahei;\nfont-size: 16px;\npadding-left:25px;\npadding-right:25px;");
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(label);

    widget = new QWidget();
    widget->setWindowFlags(windowFlags() | Qt::FramelessWindowHint | Qt::Tool);
    widget->setAttribute(Qt::WA_TranslucentBackground, true);

    widget->setGeometry(0,0,170,52);
    widget->setLayout(layout);

    QScreen* pScreen = QGuiApplication::primaryScreen();
    widget->move((pScreen->size().width() - widget->width()) / 2, pScreen->size().height() /2);
    widget->setVisible(true);
}

Toast::~Toast()
{
    
    delete label;
    delete widget;
}

void Toast::setText(const QString& text)
{
    
    label->setText(text);
}

void Toast::showAnimation(int timeout)
{
    
    QTimer::singleShot(timeout, [&]
    {
    
        QPropertyAnimation *animation = new QPropertyAnimation(this, "windowOpacity");
        animation->setDuration(500);
        animation->setStartValue(1);
        animation->setEndValue(0);
        animation->start();
        connect(animation, &QPropertyAnimation::finished, [&]
        {
    
            close();
            deleteLater();
        });
    });
}

void Toast::movetoPosition(int x,int y)
{
    
    widget->move(x,y);
}

void Toast::showTip(const QString& text ,int x,int y,QWidget* parent /*= nullptr*/)
{
    
    Toast* toast = new Toast(parent);
    toast->setWindowFlags(toast->windowFlags() | Qt::WindowStaysOnTopHint);
    toast->setText(text);
    toast->adjustSize();
    toast->movetoPosition(x, y);
    toast->showAnimation();
}

3.main cpp

void MainWindow::on_pushButton_4_clicked()
{
    

   Toast::showTip(" Test success ！ Test success ！ Test success ！ Test success ！ Test success ！",this->x(),this->y());
}


void MainWindow::on_pushButton_5_clicked()
{
    
    qDebug()<<"12";
 // Toast::showTip(QApplication::translate("Dialog", "Please set destination IP !"));
     Toast::showTip(" Test success ！",this->x(),this->y());
    qDebug()<<"123";
}void MainWindow::on_pushButton_4_clicked()
{
    

   Toast::showTip(" Test success ！ Test success ！ Test success ！ Test success ！ Test success ！",this->x(),this->y());
}

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4、 summary

The article refers to the quoted content , Then implement a toast, Just include the header file and cpp It can be used in the program

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5、 quote

1、QT Custom attribute animation
2、QT Realization toast effect

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