Golang中使用Qt库(therecipe/qt)+QtDesigner + Goland (二) UI继承


简介

在UI A 中嵌套UI_B, UI_B 是前面搭建的一个UI控件

创建 UI 文件

创建UI TextWidget

ObjectName : TextWidget

文件名保存为: textwidget.ui

拖了一个QTextWidget到创建的界面中

创建UI MainWindow, 并使用 TextWidget

使用 Golang中使用Qt库(therecipe/qt)+QtDesigner + Goland (一) 环境搭建 中创建的的login.ui

在界面中拖动一个QWidget， 并修改ObjectName为TextWidget

提升TextWidget

编译UI文件 到 Go

1. 将login.ui 和 textwidget.ui放到ui目录中

2. 利用 Goland外部工具 或指令将UI转成go文件

参考 Golang中使用Qt库(therecipe/qt)+QtDesigner + Goland (一) 环境搭建 进行外部工具配置

或指令: E:\CodePath\Golang\bin\goqtuic.exe -go-ui-dir=../uitogo -ui-file=ui

微创手术代码整改

textwidget_ui.go

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// WARNING! All changes made in this file will be lost!
package ui

import (
    "github.com/therecipe/qt/core"
    "github.com/therecipe/qt/widgets"
)

/* 增加代码 TextWidget */
type TextWidget struct {
    *UITextWidget
    *widgets.QWidget
}

/* 增加代码 NewTextWidget */
func NewTextWidget(parent widgets.QWidget_ITF, ff core.Qt__WindowType) *TextWidget {
    var textWidget = &TextWidget{
        UITextWidget: &UITextWidget{},
        QWidget: widgets.NewQWidget(parent, ff),
    }
    textWidget.UITextWidget.SetupUI(textWidget.QWidget)
   
    return textWidget
}

type UITextWidget struct {
    HorizontalLayout *widgets.QHBoxLayout
    TextEdit *widgets.QTextEdit
}


func (this *UITextWidget) SetupUI(TextWidget *widgets.QWidget) {
    TextWidget.SetObjectName("TextWidget")
    TextWidget.SetGeometry(core.NewQRect4(0, 0, 400, 185))
    this.HorizontalLayout = widgets.NewQHBoxLayout2(TextWidget)
    this.HorizontalLayout.SetObjectName("horizontalLayout")
    this.HorizontalLayout.SetContentsMargins(0, 0, 0, 0)
    this.HorizontalLayout.SetSpacing(0)
    this.TextEdit = widgets.NewQTextEdit(TextWidget)
    this.TextEdit.SetObjectName("TextEdit")
    this.HorizontalLayout.AddWidget(this.TextEdit, 0, 0)


    this.RetranslateUi(TextWidget)

}


func (this *UITextWidget) RetranslateUi(TextWidget *widgets.QWidget) {
    _translate := core.QCoreApplication_Translate
    TextWidget.SetWindowTitle(_translate("TextWidget", "Form", "", -1))
}

login_ui.go // 依葫芦(textwidget_ui.go)画瓢

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// WARNING! All changes made in this file will be lost!
package ui

import (
    "github.com/therecipe/qt/core"
    "github.com/therecipe/qt/widgets"
)

/* 增加代码 LoginMainWindow */
type LoginMainWindow struct {
    *UILoginMainWindow
    *widgets.QMainWindow
}

/* 增加代码 NewLoginMainWindow */
func NewLoginMainWindow(parent widgets.QWidget_ITF, ff core.Qt__WindowType) *LoginMainWindow {
    var mainwindow = &LoginMainWindow{
        UILoginMainWindow: &UILoginMainWindow{},
        QMainWindow: widgets.NewQMainWindow(nil, core.Qt__Window),
    }
    mainwindow.UILoginMainWindow.SetupUI(mainwindow.QMainWindow)

    return mainwindow
}

type UILoginMainWindow struct {
    Centralwidget *widgets.QWidget
    VerticalLayout *widgets.QVBoxLayout
    Widget *widgets.QWidget
    GridLayout2 *widgets.QGridLayout
    LineEdit *widgets.QLineEdit
    Label3 *widgets.QLabel
    Label2 *widgets.QLabel
    LineEdit2 *widgets.QLineEdit
    Widget3 *widgets.QWidget
    HorizontalLayout *widgets.QHBoxLayout
    HorizontalSpacer *widgets.QSpacerItem
    PushButton *widgets.QPushButton
    HorizontalSpacer2 *widgets.QSpacerItem
    TextWidget *TextWidget // 修改代码 去掉 widgets.
    Menubar *widgets.QMenuBar
    Statusbar *widgets.QStatusBar
}

func (this *UILoginMainWindow) SetupUI(MainWindow *widgets.QMainWindow) {
    MainWindow.SetObjectName("MainWindow")
    MainWindow.SetGeometry(core.NewQRect4(0, 0, 249, 269))
    this.Centralwidget = widgets.NewQWidget(MainWindow, core.Qt__Widget)
    this.Centralwidget.SetObjectName("Centralwidget")
    this.VerticalLayout = widgets.NewQVBoxLayout2(this.Centralwidget)
    this.VerticalLayout.SetObjectName("verticalLayout")
    this.VerticalLayout.SetContentsMargins(4, 0, 4, 0)
    this.VerticalLayout.SetSpacing(0)
    this.Widget = widgets.NewQWidget(this.Centralwidget, core.Qt__Widget)
    this.Widget.SetObjectName("Widget")
    this.GridLayout2 = widgets.NewQGridLayout(this.Widget)
    this.GridLayout2.SetObjectName("gridLayout_2")
    this.GridLayout2.SetContentsMargins(0, 0, 0, 0)
    this.GridLayout2.SetSpacing(4)
    this.LineEdit = widgets.NewQLineEdit(this.Widget)
    this.LineEdit.SetObjectName("LineEdit")
    this.GridLayout2.AddWidget3(this.LineEdit, 0, 1, 1, 1, 0)
    this.Label3 = widgets.NewQLabel(this.Widget, core.Qt__Widget)
    this.Label3.SetObjectName("Label3")
    this.GridLayout2.AddWidget3(this.Label3, 1, 0, 1, 1, 0)
    this.Label2 = widgets.NewQLabel(this.Widget, core.Qt__Widget)
    this.Label2.SetObjectName("Label2")
    this.GridLayout2.AddWidget3(this.Label2, 0, 0, 1, 1, 0)
    this.LineEdit2 = widgets.NewQLineEdit(this.Widget)
    this.LineEdit2.SetObjectName("LineEdit2")
    this.LineEdit2.SetEchoMode(widgets.QLineEdit__Password)
    this.GridLayout2.AddWidget3(this.LineEdit2, 1, 1, 1, 1, 0)
    this.Widget3 = widgets.NewQWidget(this.Widget, core.Qt__Widget)
    this.Widget3.SetObjectName("Widget3")
    this.HorizontalLayout = widgets.NewQHBoxLayout2(this.Widget3)
    this.HorizontalLayout.SetObjectName("horizontalLayout")
    this.HorizontalLayout.SetContentsMargins(0, 0, 0, 0)
    this.HorizontalLayout.SetSpacing(0)
    this.HorizontalSpacer = widgets.NewQSpacerItem(40, 20, widgets.QSizePolicy__Expanding, widgets.QSizePolicy__Minimum)
    this.HorizontalLayout.AddItem(this.HorizontalSpacer)
    this.PushButton = widgets.NewQPushButton(this.Widget3)
    this.PushButton.SetObjectName("PushButton")
    this.HorizontalLayout.AddWidget(this.PushButton, 0, 0)
    this.HorizontalSpacer2 = widgets.NewQSpacerItem(40, 20, widgets.QSizePolicy__Expanding, widgets.QSizePolicy__Minimum)
    this.HorizontalLayout.AddItem(this.HorizontalSpacer2)
    this.GridLayout2.AddWidget3(this.Widget3, 2, 0, 1, 2, 0)
    this.VerticalLayout.AddWidget(this.Widget, 0, 0)
    this.TextWidget = NewTextWidget(this.Centralwidget, core.Qt__Widget) // 修改代码 去掉 widgets. 增加第二参数core.Qt__Widget
    this.TextWidget.SetObjectName("TextWidget")
    this.VerticalLayout.AddWidget(this.TextWidget, 0, 0)
    MainWindow.SetCentralWidget(this.Centralwidget)
    this.Menubar = widgets.NewQMenuBar(MainWindow)
    this.Menubar.SetObjectName("Menubar")
    this.Menubar.SetGeometry(core.NewQRect4(0, 0, 249, 23))
    MainWindow.SetMenuBar(this.Menubar)
    this.Statusbar = widgets.NewQStatusBar(MainWindow)
    this.Statusbar.SetObjectName("Statusbar")
    MainWindow.SetStatusBar(this.Statusbar)


    this.RetranslateUi(MainWindow)

}

func (this *UILoginMainWindow) RetranslateUi(MainWindow *widgets.QMainWindow) {
    _translate := core.QCoreApplication_Translate
    MainWindow.SetWindowTitle(_translate("MainWindow", "MainWindow", "", -1))
    this.Label3.SetText(_translate("MainWindow", "密码", "", -1))
    this.Label2.SetText(_translate("MainWindow", "用户名", "", -1))
    this.PushButton.SetText(_translate("MainWindow", "登录", "", -1))
}

main.go

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package main

import (
    "github.com/therecipe/qt/widgets"
    "os"
    myui "go_with_qt/ui"
)

func main() {
    widget := widgets.NewQApplication(len(os.Args), os.Args)

    myui.NewLoginMainWindow().Show()

    widget.Exec()
}

编译 main.go,

指令 - qtdeploy.exe -qt_dir=E:\CodePath\Golang\bin\env_windows_amd64_513 -qt_version="5.13.0" build desktop main.go

问题：

1.

原因是创建的NewTextWidget 方法 与编译后生成的uic_xx.go 内部的NewTextWidget重名了，qtdeploy 编译时会生成ui目录, 并产生对应的uic_xxx.go

解决方法（两种方法）:

(1) 修改UI编译成go的生成路径, 修改为../uitogo, 已经编译好的， 直接创建新目录放置进去，错开

E:\CodePath\Golang\bin\goqtuic.exe -go-ui-dir=../uitogo -ui-file=ui

(2) 将NewLoginMainwindow 和 NewTextWidget改成 _NewMainWindows 和 _NewTextWidget

2. 要是出现 问题, 先在工程目录，即mod文件所在目录执行下面

go mod tidy 或 go mod download

go mod vendor

再重新进行编译

资源

本例代码 - https://download.csdn.net/download/halo_hsuh/12533596

- 和彩云 http://caiyun.feixin.10086.cn/dl/0r5Csgtw7l5xo 提取密码:AdJF