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添加对翻译器的使用说明
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‎qt_I18N/main.cpp

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#include "mainwindow.h"
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#include <QApplication>
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#include <QTranslator>
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/*
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* 执行文件翻译的过程
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* 1. 使用lupdate工具根据 pro文件获得ts文件 lupdate -pro qt_I18N.pro -ts tra.ts
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* lupdate -pro myI18N.pro
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* 2. 使用lrelease工具根据ts文件获得qm文件 lrelease [options] ts-files [-qm qm-file]
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* lrelease myI18N_zh_CN.ts
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* 3. 函数中指定翻译文件
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* 如下主文件中所示
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* 需要注意的是，翻译需要依赖提取tr中的文本内容，因此需要翻译的地方需要使用tr处理对应的文本
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*
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*/
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QTranslator translator;
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translator.load("../qt_I18N/tra.qm");
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a.installTranslator(&translator);
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MainWindow w;
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w.show();
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return a.exec();
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}

‎qt_I18N/mainwindow.cpp

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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <QLabel>
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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QLabel *label = new QLabel(this);
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label->setText(tr("hello Qt!"));
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label->move(100,50);
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QLabel *label2 = new QLabel(this);
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label2->setText(tr("password", "mainwindow"));
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label2->move(100,80);
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QLabel *label3 = new QLabel(this);
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int id = 123;
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QString name = "yafei";
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label3->setText(tr("ID is %1,Name is %2").arg(id).arg(name));
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label3->resize(150, 12);
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label3->move(100, 120);
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}

‎qt_I18N/mainwindow.h

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#ifndef MAINWINDOW_H
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#define MAINWINDOW_H
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#include <QMainWindow>
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namespace Ui {
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class MainWindow;
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}
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class MainWindow : public QMainWindow
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{
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Q_OBJECT
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public:
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explicit MainWindow(QWidget *parent = nullptr);
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~MainWindow();
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private:
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Ui::MainWindow *ui;
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};
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#endif // MAINWINDOW_H

‎qt_I18N/mainwindow.ui

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>581</width>
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<height>433</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>MainWindow</string>
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</property>
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<widget class="QWidget" name="centralWidget">
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<widget class="QPushButton" name="pushButton">
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<property name="geometry">
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<rect>
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<x>110</x>
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<y>260</y>
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<width>89</width>
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<height>25</height>
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</rect>
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</property>
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<property name="text">
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<string>PushButton</string>
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</property>
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</widget>
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</widget>
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<widget class="QMenuBar" name="menuBar">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>581</width>
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<height>28</height>
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</rect>
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</property>
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<widget class="QMenu" name="menu">
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<property name="title">
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<string>File</string>
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</property>
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<addaction name="actionNew"/>
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</widget>
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<addaction name="menu"/>
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</widget>
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<widget class="QToolBar" name="mainToolBar">
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<attribute name="toolBarArea">
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<enum>TopToolBarArea</enum>
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</attribute>
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<attribute name="toolBarBreak">
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<bool>false</bool>
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</attribute>
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</widget>
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<widget class="QStatusBar" name="statusBar"/>
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<action name="actionNew">
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<property name="text">
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<string>New</string>
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</property>
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</action>
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</widget>
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<layoutdefault spacing="6" margin="11"/>
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<resources/>
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<connections/>
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</ui>

‎qt_I18N/qt_I18N.pro

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#-------------------------------------------------
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#
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# Project created by QtCreator 2023-09-29T11:06:42
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#
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#-------------------------------------------------
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QT += core gui
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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TARGET = qt_I18N
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TEMPLATE = app
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# The following define makes your compiler emit warnings if you use
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# any feature of Qt which has been marked as deprecated (the exact warnings
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# depend on your compiler). Please consult the documentation of the
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# deprecated API in order to know how to port your code away from it.
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DEFINES += QT_DEPRECATED_WARNINGS
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# You can also make your code fail to compile if you use deprecated APIs.
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# In order to do so, uncomment the following line.
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# You can also select to disable deprecated APIs only up to a certain version of Qt.
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#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
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CONFIG += c++11
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SOURCES += \
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main.cpp \
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mainwindow.cpp
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HEADERS += \
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mainwindow.h
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FORMS += \
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mainwindow.ui
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# Default rules for deployment.
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qnx: target.path = /tmp/$${TARGET}/bin
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else: unix:!android: target.path = /opt/$${TARGET}/bin
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!isEmpty(target.path): INSTALLS += target

‎qt_colorbutton/mainwindow.cpp

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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <QFile>
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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// // 当然除了手动去ui中进行设置，也可以直接加载qss文件来实现设置
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// auto qssFile = new QFile(":/css/my.qss", this);
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// qssFile->open(QFile::ReadOnly);
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// QString styleSheet = tr(qssFile->readAll());
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// qApp->setStyleSheet(styleSheet);
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// qssFile->close();
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// // 设置窗口的不透明度为0.5
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// setWindowOpacity(0.7);
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// FramelessWindowHint 实现窗体透明效果
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// setWindowFlags(Qt::FramelessWindowHint);
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// 使窗体透明但是其他部件不受影响
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setAttribute(Qt::WA_TranslucentBackground);
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// // 创建阴影效果
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// QGraphicsDropShadowEffect *effect = new QGraphicsDropShadowEffect;
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// // 设置阴影颜色
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// effect->setColor(QColor(100, 100, 100, 100));
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// // 设置阴影模糊半径
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// effect->setBlurRadius(2);
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// // 设置阴影偏移值
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// effect->setOffset(10);
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// // 标签部件使用阴影效果
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// ui->label->setGraphicsEffect(effect);
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}
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MainWindow::~MainWindow()

‎qt_colorbutton/mainwindow.h

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explicit MainWindow(QWidget *parent = nullptr);
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~MainWindow();
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void on_pushButton_clicked();
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private:
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Ui::MainWindow *ui;
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};

‎qt_colorbutton/mainwindow.ui

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<bool>false</bool>
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</attribute>
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</widget>
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<widget class="QToolBar" name="toolBar_2">
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<property name="windowTitle">
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<string>toolBar_2</string>
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</property>
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<attribute name="toolBarArea">
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<enum>TopToolBarArea</enum>
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</attribute>
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<attribute name="toolBarBreak">
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<bool>false</bool>
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</attribute>
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</widget>
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<widget class="QToolBar" name="toolBar_3">
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<property name="windowTitle">
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<string>toolBar_3</string>
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</property>
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<attribute name="toolBarArea">
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<enum>TopToolBarArea</enum>
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</attribute>
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<attribute name="toolBarBreak">
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<bool>false</bool>
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</attribute>
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</widget>
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</widget>
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<layoutdefault spacing="6" margin="11"/>
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<resources/>

‎qt_colorbutton/res.qrc

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<qresource prefix="/images">
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<file alias="achou">achou.png</file>
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</qresource>
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<qresource prefix="/css">
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<file>my.qss</file>
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</qresource>
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</RCC>

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