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code review! 文章目录 qt笔记之qml下拉标签组合框增加发送按钮发送标签内容1.运行2.文件结构3.main.qml4.main.cc5.MyClass.h6.MyClass.cc7.CMakeLists.txt8.ComboBox.pro9.qml.qrc 1.运行 2.文件结构 3.main.qml 代码
…qt笔记之qml下拉标签组合框增加发送按钮发送标签内容
code review! 文章目录 qt笔记之qml下拉标签组合框增加发送按钮发送标签内容1.运行2.文件结构3.main.qml4.main.cc5.MyClass.h6.MyClass.cc7.CMakeLists.txt8.ComboBox.pro9.qml.qrc 1.运行 2.文件结构 3.main.qml 代码
import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2Window {visible: truewidth: 640height: 480title: qsTr(QML ComboBox C signal)property string selectedOptionComboBox {id: comboBoxx: 12y: 58width: 147height: 25model: [选项一, 选项二, 选项三]Component.onCompleted: {selectedOption 选项一}onCurrentIndexChanged: {selectedOption comboBox.currentText;}}Button {id: buttonx: 18y: 134text: qsTr(发送)onClicked: {myClass_rename.setValue(selectedOption);}}
}4.main.cc 代码
#include MyClass.h
#include QGuiApplication
#include QQmlApplicationEngine
#include QQmlContextQ_DECLARE_METATYPE(MyClass *)int main(int argc, char *argv[]) {QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);QGuiApplication app(argc, argv);QQmlApplicationEngine engine;MyClass myClass;engine.rootContext()-setContextProperty(myClass_rename, myClass);engine.load(QUrl(QStringLiteral(qrc:/main.qml)));if (engine.rootObjects().isEmpty())return -1;return app.exec();
}5.MyClass.h 代码
#ifndef MYCLASS_H
#define MYCLASS_H#include QObject
#include QString
#include QVector
#include iomanip
#include iostreamclass MyClass : public QObject {Q_OBJECTpublic:explicit MyClass(QObject *parent nullptr);public slots:void setValue(QString value);
};#endif // MYCLASS_H6.MyClass.cc 代码
#include MyClass.h
#include QDebugMyClass::MyClass(QObject *parent) : QObject(parent) {}void MyClass::setValue(QString value) {qDebug() value value;
}7.CMakeLists.txt 代码
cmake_minimum_required(VERSION 2.8.12)project(ComboBox LANGUAGES CXX)
set(Qt5_DIR /home/user/Qt/5.15.2/gcc_64/lib/cmake/Qt5)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)find_package(Qt5 COMPONENTS Core Quick REQUIRED)include_directories(
# src*.h
)file (GLOB SRCS
# src/cc/*.cc*.cc
)file (GLOB INCS
# src/inc/*.h*.h
)add_executable(${PROJECT_NAME} ${SRCS} ${INCS} main.cc qml.qrc)target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick -pthread)8.ComboBox.pro
代码
QT quick qml
CONFIG c11INCLUDEPATH ./LIBS -L/usr/lib/x86_64-linux-gnu -lz
LIBS /usr/lib/x86_64-linux-gnu/libboost_*
#LIBS /usr/lib/aarch64-linux-gnu/libboost_*# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Refer to the documentation for the
# deprecated API to know how to port your code away from it.
DEFINES QT_DEPRECATED_WARNINGS# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES QT_DISABLE_DEPRECATED_BEFORE0x060000 # disables all the APIs deprecated before Qt 6.0.0SOURCES \./main.ccRESOURCES ./qml.qrc \
# image.qrc# Additional import path used to resolve QML modules in Qt Creators code model
QML_IMPORT_PATH # Additional import path used to resolve QML modules just for Qt Quick Designer
QML_DESIGNER_IMPORT_PATH # Default rules for deployment.
qnx: target.path /tmp/$${TARGET}/bin
else: unix:!android: target.path /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS target9.qml.qrc
代码
RCCqresource prefix/filemain.qml/file/qresource
/RCC
