User interface toolkit for Go with support for SDL2 and HTML Canvas render targets.
Nevar pievienot vairāk kā 25 tēmas Tēmai ir jāsākas ar burtu vai ciparu, tā var saturēt domu zīmes ('-') un var būt līdz 35 simboliem gara.
 
 
 
 
 

84 rindas
2.3 KiB

  1. package ui_test
  2. import (
  3. "git.kirsle.net/go/ui"
  4. )
  5. // Example of using the menu widgets.
  6. func ExampleMenu() {
  7. mw, err := ui.NewMainWindow("Menu Bar Example", 800, 600)
  8. if err != nil {
  9. panic(err)
  10. }
  11. // Create a main menu for your window.
  12. menu := ui.NewMenuBar("Main Menu")
  13. // File menu. Some items with accelerators, some without.
  14. // NOTE: key bindings are up to you, the accelerators are
  15. // purely decorative.
  16. file := menu.AddMenu("File")
  17. file.AddItemAccel("New", "Ctrl-N", func() {})
  18. file.AddItemAccel("Open", "Ctrl-O", func() {})
  19. file.AddItemAccel("Save", "Ctrl-S", func() {})
  20. file.AddItem("Save as...", func() {})
  21. file.AddSeparator()
  22. file.AddItem("Close window", func() {})
  23. file.AddItemAccel("Exit", "Alt-F4", func() {})
  24. // Help menu.
  25. help := menu.AddMenu("Help")
  26. help.AddItemAccel("Contents", "F1", func() {})
  27. help.AddItem("About", func() {})
  28. // Give the menu bar your Supervisor so it can wire all
  29. // events up and make the menus work.
  30. menu.Supervise(mw.Supervisor())
  31. // Compute and pack the menu bar against the top of
  32. // the main window (or other parent container)
  33. menu.Compute(mw.Engine)
  34. mw.Pack(menu, menu.PackTop()) // Side: N, FillX: true
  35. // Each loop you must then:
  36. // - Call Supervisor.Loop() as normal to handle events.
  37. // - Call Supervisor.Present() to draw the modal popup menus.
  38. // MainLoop() of the MainWindow does this for you.
  39. mw.MainLoop()
  40. }
  41. // Example of using the MenuButton.
  42. func ExampleMenuButton() {
  43. mw, err := ui.NewMainWindow("Menu Button", 800, 600)
  44. if err != nil {
  45. panic(err)
  46. }
  47. // Create a MenuButton much as you would a normal Button.
  48. btn := ui.NewMenuButton("Button1", ui.NewLabel(ui.Label{
  49. Text: "File",
  50. }))
  51. mw.Place(btn, ui.Place{ // place it in the center
  52. Center: true,
  53. Middle: true,
  54. })
  55. // Add menu items to it.
  56. btn.AddItemAccel("New", "Ctrl-N", func() {})
  57. btn.AddItemAccel("Open", "Ctrl-O", func() {})
  58. btn.AddItemAccel("Save", "Ctrl-S", func() {})
  59. btn.AddItem("Save as...", func() {})
  60. btn.AddSeparator()
  61. btn.AddItem("Close window", func() {})
  62. btn.AddItemAccel("Exit", "Alt-F4", func() {})
  63. // Add the button to Supervisor for events to work.
  64. btn.Supervise(mw.Supervisor())
  65. // Each loop you must then:
  66. // - Call Supervisor.Loop() as normal to handle events.
  67. // - Call Supervisor.Present() to draw the modal popup menus.
  68. // MainLoop() of the MainWindow does this for you.
  69. mw.MainLoop()
  70. }