桌面应用开发GOTK3 Glade (GO语言)

目录

• Github
• 简介
  • 环境变量
• 官方示例
• demo.glade
  • Github
• main.go

Github

• https://github.com/GNOME/gtk
• https://github.com/gotk3/gotk3

git clone https://github.com/gotk3/gotk3.git

简介

• gotk3 项目为 GTK 3 和依赖项目提供 Go 绑定。每个组件都有自己的子目录，用作包的导入路径。目前已实现对以下库的部分绑定支持：
  • GTK 3（3.12 及更高版本）
  • GDK 3（3.12 及更高版本）
  • GLib 2（2.36 及更高版本）

环境变量

vim ~/.bash_profile
# 添加 PKG_CONFIG_PATH
export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig/:`brew --prefix gtk+3`/lib/pkgconfig go get -u -v github.com/gotk3/gotk3/gdk:$PKG_CONFIG_PATH"
source ~/.bash_profile

官方示例

• https://github.com/gotk3/gotk3-examples/

git clone https://github.com/gotk3/gotk3-examples.git

# 没有go.mod文件则需要初始化
go mod init example.com/glade
go mod tidy 
# gotk3依赖
# go get github.com/gotk3/gotk3/gtk
go run glade.go

demo.glade

Github

• https://github.com/GNOME/glade

<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.40.0 -->
<interface>
  <requires lib="gtk+" version="3.24"/>
  <object class="GtkWindow" id="window">
    <property name="width-request">400</property>
    <property name="height-request">200</property>
    <property name="can-focus">False</property>
    <property name="title" translatable="yes">demo</property>
    <child>
      <object class="GtkBox" id="box">
        <property name="visible">True</property>
        <property name="can-focus">False</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkButton" id="button">
            <property name="label" translatable="yes">button</property>
            <property name="visible">True</property>
            <property name="can-focus">True</property>
            <property name="receives-default">True</property>
            <property name="margin-start">10</property>
            <property name="margin-end">10</property>
            <property name="margin-top">10</property>
            <property name="margin-bottom">10</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkComboBoxText" id="combobox">
            <property name="visible">True</property>
            <property name="can-focus">False</property>
            <property name="margin-start">10</property>
            <property name="margin-end">10</property>
            <property name="margin-top">10</property>
            <property name="margin-bottom">10</property>
            <property name="active">0</property>
            <property name="active-id">1</property>
            <items>
              <item id="1" translatable="yes">item1</item>
              <item id="2" translatable="yes">item2</item>
              <item id="3" translatable="yes">item3</item>
              <item id="4" translatable="yes">item4</item>
            </items>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkEntry" id="entry">
            <property name="visible">True</property>
            <property name="can-focus">True</property>
            <property name="margin-start">10</property>
            <property name="margin-end">10</property>
            <property name="margin-top">10</property>
            <property name="margin-bottom">10</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>

main.go

package main

import (
	"github.com/gotk3/gotk3/gtk"
	"log"
)

func main() {
	gtk.Init(nil)
	builder, err := gtk.BuilderNewFromFile("ui/demo.glade")
	if err != nil {
		log.Fatal("Error loading Glade file:", err)
	}

	buildButton(builder)
	buildCombobox(builder)
	buildEntry(builder)
	window := buildWindow(builder)

	window.ShowAll()

	gtk.Main()
}

func buildWindow(builder *gtk.Builder) *gtk.Window {
	obj, err := builder.GetObject("window")
	if err != nil {
		log.Fatal("Error getting window object:", err)
	}
	window.SetPosition(gtk.WIN_POS_CENTER)
	window, ok := obj.(*gtk.Window)
	if !ok {
		log.Fatal("Error converting to gtk.Window")
	}
	window.Connect("destroy", func() {
		log.Println("Close Window")
		gtk.MainQuit()
	})
	return window
}

func buildButton(builder *gtk.Builder) {
	obj, err := builder.GetObject("button")
	if err != nil {
		log.Fatal("Error getting Button object:", err)
	}
	button, ok := obj.(*gtk.Button)
	if !ok {
		log.Fatal("Error converting to gtk.Button")
	}
	button.Connect("clicked", func() {
		log.Println("Hello World")
	})
}

func buildCombobox(builder *gtk.Builder) {
	obj, err := builder.GetObject("combobox")
	if err != nil {
		log.Fatal("Error getting ComboBoxText object:", err)
	}
	combobox, ok := obj.(*gtk.ComboBoxText)
	if !ok {
		log.Fatal("Error converting to gtk.ComboBoxText")
	}
	combobox.Connect("changed", func() {
		activeIndex := combobox.GetActive()
		activeText := combobox.GetActiveText()
		log.Println("ComboBoxText index item changed:", activeIndex, activeText)
	})
}

func buildEntry(builder *gtk.Builder) {
	obj, err := builder.GetObject("entry")
	if err != nil {
		log.Fatal("Error getting entry object:", err)
	}
	entry, ok := obj.(*gtk.Entry)
	if !ok {
		log.Fatal("Error converting to gtk.Entry")
	}
	entry.Connect("changed", func() {
		text, err := entry.GetText()
		if err != nil {
			log.Fatal("Error getting text from entry:", err)
		}
		log.Println("Entry text changed:", text)
	})
	entry.Connect("activate", func() {
		text, err := entry.GetText()
		if err != nil {
			log.Fatal("Error getting text from entry:", err)
		}
		log.Println("Entry text activated:", text)
	})
}