/
main.go
144 lines (117 loc) · 3.2 KB
/
main.go
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package main
import (
"fmt"
"runtime"
"github.com/ying32/govcl/vcl/types/colors"
"github.com/ying32/govcl/vcl/types"
_ "github.com/ying32/govcl/pkgs/winappres"
"github.com/ying32/govcl/vcl"
)
type TMainForm struct {
*vcl.TForm
mainMenu *vcl.TMainMenu
}
var (
mainForm *TMainForm
)
func main() {
vcl.RunApp(&mainForm)
}
func (f *TMainForm) OnFormCreate(sender vcl.IObject) {
f.SetCaption("Menu example")
f.ScreenCenter()
// TMainMenu
f.mainMenu = vcl.NewMainMenu(f)
// macOS下专有的
if runtime.GOOS == "darwin" {
fmt.Println("darwin")
// https://wiki.lazarus.freepascal.org/Mac_Preferences_and_About_Menu
// 动态添加的，静态好像是通过设计器将顶级的菜单标题设置为应用程序名，但动态的就是另一种方式
appMenu := vcl.NewMenuItem(f)
// 动态添加的，设置一个Unicode Apple logo char
appMenu.SetCaption(types.AppleLogoChar)
subItem := vcl.NewMenuItem(f)
// ----
subItem.SetCaption("关于")
subItem.SetOnClick(func(sender vcl.IObject) {
vcl.ShowMessage("About")
})
appMenu.Add(subItem)
// --
subItem = vcl.NewMenuItem(f)
subItem.SetCaption("-")
appMenu.Add(subItem)
// ---
subItem = vcl.NewMenuItem(f)
subItem.SetCaption("首选项...")
subItem.SetShortCutFromString("Meta+,")
subItem.SetOnClick(func(sender vcl.IObject) {
vcl.ShowMessage("Preferences")
})
appMenu.Add(subItem)
// 添加
f.mainMenu.Items().Insert(0, appMenu)
}
// 一级菜单
item := vcl.NewMenuItem(f)
item.SetCaption("文件(&F)")
subMenu := vcl.NewMenuItem(f)
subMenu.SetCaption("新建(&N)")
subMenu.SetShortCutFromString("Ctrl+N")
subMenu.SetOnClick(func(vcl.IObject) {
fmt.Println("单击了新建")
})
item.Add(subMenu)
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("打开(&O)")
subMenu.SetShortCutFromString("Ctrl+O")
item.Add(subMenu)
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("保存(&S)")
subMenu.SetShortCutFromString("Ctrl+S")
item.Add(subMenu)
// 分割线
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("-")
item.Add(subMenu)
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("历史记录...")
item.Add(subMenu)
m := vcl.NewMenuItem(f)
m.SetCaption("第一个历史记录")
subMenu.Add(m)
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("-")
item.Add(subMenu)
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("退出(&Q)")
subMenu.SetShortCutFromString("Ctrl+Q")
subMenu.SetOnClick(func(vcl.IObject) {
f.Close()
})
item.Add(subMenu)
f.mainMenu.Items().Add(item)
item = vcl.NewMenuItem(f)
item.SetCaption("关于(&A)")
subMenu = vcl.NewMenuItem(f)
subMenu.SetCaption("帮助(&H)")
item.Add(subMenu)
f.mainMenu.Items().Add(item)
// TPopupMenu
pm := vcl.NewPopupMenu(f)
item = vcl.NewMenuItem(f)
item.SetCaption("退出(&E)")
item.SetOnClick(func(vcl.IObject) {
f.Close()
})
pm.Items().Add(item)
// 将窗口设置一个弹出菜单，右键单击就可显示
f.SetPopupMenu(pm)
}
func (f *TMainForm) OnFormPaint(sender vcl.IObject) {
///r := types.TRect{0, 0, f.Width(), f.Height()}
//f.Canvas().TextRect(r, 0, 0, "右键弹出菜单")
f.Canvas().Brush().SetStyle(types.BsClear)
f.Canvas().Font().SetColor(colors.ClGreen)
f.Canvas().TextOut(10, 80, "右键弹出菜单")
}