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

2023-05-16

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

// 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

// 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

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：

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

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