网站免费制作教程,免费刷seo,it学校哪个比较好,网站建设项目进展情况qt-C笔记之两个窗口ui的交互
code review! 文章目录 qt-C笔记之两个窗口ui的交互0.运行1.文件结构2.先创建widget项目#xff0c;搞一个窗口ui出来3.项目添加第二个widget窗口出来4.补充代码4.1.qt_widget_interaction.pro4.2.main.cpp4.3.widget.h4.4.widget.cpp4.5.second…qt-C笔记之两个窗口ui的交互
code review! 文章目录 qt-C笔记之两个窗口ui的交互0.运行1.文件结构2.先创建widget项目搞一个窗口ui出来3.项目添加第二个widget窗口出来4.补充代码4.1.qt_widget_interaction.pro4.2.main.cpp4.3.widget.h4.4.widget.cpp4.5.second_widget.h4.6.second_widget.cpp4.7.widget.ui4.8.second_widget.ui 0.运行 1.文件结构 2.先创建widget项目搞一个窗口ui出来 3.项目添加第二个widget窗口出来 4.补充代码
4.1.qt_widget_interaction.pro
代码
QT core guigreaterThan(QT_MAJOR_VERSION, 4): QT widgetsCONFIG c11# 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). Please consult the documentation of the
# deprecated API in order 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.cpp \second_widget.cpp \widget.cppHEADERS \second_widget.h \widget.hFORMS \second_widget.ui \widget.ui# Default rules for deployment.
qnx: target.path /tmp/$${TARGET}/bin
else: unix:!android: target.path /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS target4.2.main.cpp 代码
#include widget.h#include QApplicationint main(int argc, char *argv[])
{QApplication a(argc, argv);Widget w;w.show();return a.exec();
}4.3.widget.h 代码
#ifndef WIDGET_H
#define WIDGET_H#include QWidget
#include second_widget.hQT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACEclass Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent nullptr);~Widget();private slots:void on_push_second_widget_clicked();void show_widget();private:Ui::Widget *ui;
};
#endif // WIDGET_H4.4.widget.cpp 代码
#include widget.h
#include ui_widget.hWidget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget)
{ui-setupUi(this);}Widget::~Widget()
{delete ui;
}void Widget::show_widget()
{this-show();
}void Widget::on_push_second_widget_clicked()
{second_widget* f new second_widget;f-show();this-hide();connect(f,SIGNAL(close_and_open()),this,SLOT(show_widget()));
}4.5.second_widget.h 代码
#ifndef SECOND_WIDGET_H
#define SECOND_WIDGET_H#include QWidgetnamespace Ui {
class second_widget;
}class second_widget : public QWidget
{Q_OBJECTpublic:explicit second_widget(QWidget *parent nullptr);~second_widget();private slots:void on_pushButton_clicked();signals:void close_and_open();private:Ui::second_widget *ui;
};#endif // SECOND_WIDGET_H4.6.second_widget.cpp 代码
#include second_widget.h
#include ui_second_widget.hsecond_widget::second_widget(QWidget *parent) :QWidget(parent),ui(new Ui::second_widget)
{ui-setupUi(this);
}second_widget::~second_widget()
{delete ui;
}void second_widget::on_pushButton_clicked()
{emit close_and_open();this-hide();
}4.7.widget.ui
代码
?xml version1.0 encodingUTF-8?
ui version4.0classWidget/classwidget classQWidget nameWidgetproperty namegeometryrectx0/xy0/ywidth800/widthheight600/height/rect/propertyproperty namewindowTitlestringWidget/string/propertywidget classQLabel namelabelproperty namegeometryrectx350/xy210/ywidth171/widthheight41/height/rect/propertyproperty nametextstringfirst_widget/string/property/widgetwidget classQPushButton namepush_second_widgetproperty namegeometryrectx70/xy340/ywidth281/widthheight51/height/rect/propertyproperty nametextstringopen scond_widget/string/property/widget/widgetresources/connections/
/ui4.8.second_widget.ui
代码
?xml version1.0 encodingUTF-8?
ui version4.0classsecond_widget/classwidget classQWidget namesecond_widgetproperty namegeometryrectx0/xy0/ywidth460/widthheight312/height/rect/propertyproperty namewindowTitlestringForm/string/propertywidget classQLabel namelabelproperty namegeometryrectx100/xy120/ywidth211/widthheight41/height/rect/propertyproperty nametextstringsecond_widget/string/property/widgetwidget classQPushButton namepushButtonproperty namegeometryrectx20/xy210/ywidth411/widthheight41/height/rect/propertyproperty nametextstringclose_second_and_open_first/string/property/widget/widgetresources/connections/
/ui
