diff options
| -rw-r--r-- | dialog_windows.go | 98 | ||||
| -rw-r--r-- | init.go | 14 | ||||
| -rw-r--r-- | unmigrated/messagebox_windows.go | 85 |
3 files changed, 107 insertions, 90 deletions
diff --git a/dialog_windows.go b/dialog_windows.go new file mode 100644 index 0000000..d741c53 --- /dev/null +++ b/dialog_windows.go @@ -0,0 +1,98 @@ +// 7 february 2014 +package main + +import ( + "fmt" + "syscall" + "unsafe" +) + +// MessageBox button types. +const ( + _MB_ABORTRETRYIGNORE = 0x00000002 + _MB_CANCELTRYCONTINUE = 0x00000006 + _MB_HELP = 0x00004000 + _MB_OK = 0x00000000 + _MB_OKCANCEL = 0x00000001 + _MB_RETRYCANCEL = 0x00000005 + _MB_YESNO = 0x00000004 + _MB_YESNOCANCEL = 0x00000003 +) + +// MessageBox icon types. +const ( + _MB_ICONEXCLAMATION = 0x00000030 + _MB_ICONWARNING = 0x00000030 + _MB_ICONINFORMATION = 0x00000040 + _MB_ICONASTERISK = 0x00000040 + _MB_ICONQUESTION = 0x00000020 + _MB_ICONSTOP = 0x00000010 + _MB_ICONERROR = 0x00000010 + _MB_ICONHAND = 0x00000010 +) + +// MessageBox default button types. +const ( + _MB_DEFBUTTON1 = 0x00000000 + _MB_DEFBUTTON2 = 0x00000100 + _MB_DEFBUTTON3 = 0x00000200 + _MB_DEFBUTTON4 = 0x00000300 +) + +// MessageBox modality types. +const ( + _MB_APPLMODAL = 0x00000000 + _MB_SYSTEMMODAL = 0x00001000 + _MB_TASKMODAL = 0x00002000 +) + +// MessageBox miscellaneous types. +const ( + _MB_DEFAULT_DESKTOP_ONLY = 0x00020000 + _MB_RIGHT = 0x00080000 + _MB_RTLREADING = 0x00100000 + _MB_SETFOREGROUND = 0x00010000 + _MB_TOPMOST = 0x00040000 + _MB_SERVICE_NOTIFICATION = 0x00200000 +) + +// MessageBox return values. +const ( + _IDABORT = 3 + _IDCANCEL = 2 + _IDCONTINUE = 11 + _IDIGNORE = 5 + _IDNO = 7 + _IDOK = 1 + _IDRETRY = 4 + _IDTRYAGAIN = 10 + _IDYES = 6 +) + +var ( + _messageBox = user32.NewProc("MessageBoxW") +) + +func msgBox(lpText string, lpCaption string, uType uint32) (result int) { + r1, _, err := _messageBox.Call( + uintptr(_NULL), + uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpText))), + uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpCaption))), + uintptr(uType)) + if r1 == 0 { // failure + panic(fmt.Sprintf("error displaying message box to user: %v\nstyle: 0x%08X\ntitle: %q\ntext:\n%s", err, uType, lpCaption, lpText)) + } + return int(r1) +} + +// MsgBox displays an informational message box to the user with just an OK button. +func MsgBox(title string, textfmt string, args ...interface{}) { + // TODO add an icon? + msgBox(fmt.Sprintf(textfmt, args...), title, _MB_OK) +} + +// MsgBoxError displays a message box to the user with just an OK button and an icon indicating an error. +func MsgBoxError(title string, textfmt string, args ...interface{}) { + // TODO add an icon? + msgBox(fmt.Sprintf(textfmt, args...), title, _MB_OK | _MB_ERROR) +} @@ -2,16 +2,20 @@ //package ui package main -// TODO this will be system-defined -func initpanic(err error) { - panic("failure during init: " + err.Error()) -} +import ( + "os" +) func init() { initDone := make(chan error) go ui(initDone) err := <-initDone if err != nil { - initpanic(err) + // TODO provide copying instructions? will need to be system-specific + MsgBoxError("UI Library Init Failure", + "A failure occured during UI library initialization:\n%v\n" + + "Please report this to the application developer or on http://github.com/andlabs/ui.", + err) + os.Exit(1) } } diff --git a/unmigrated/messagebox_windows.go b/unmigrated/messagebox_windows.go deleted file mode 100644 index ba50f61..0000000 --- a/unmigrated/messagebox_windows.go +++ /dev/null @@ -1,85 +0,0 @@ -// 7 february 2014 -package main - -import ( - "syscall" - "unsafe" -) - -// MessageBox button types. -const ( - MB_ABORTRETRYIGNORE = 0x00000002 - MB_CANCELTRYCONTINUE = 0x00000006 - MB_HELP = 0x00004000 - MB_OK = 0x00000000 - MB_OKCANCEL = 0x00000001 - MB_RETRYCANCEL = 0x00000005 - MB_YESNO = 0x00000004 - MB_YESNOCANCEL = 0x00000003 -) - -// MessageBox icon types. -const ( - MB_ICONEXCLAMATION = 0x00000030 - MB_ICONWARNING = 0x00000030 - MB_ICONINFORMATION = 0x00000040 - MB_ICONASTERISK = 0x00000040 - MB_ICONQUESTION = 0x00000020 - MB_ICONSTOP = 0x00000010 - MB_ICONERROR = 0x00000010 - MB_ICONHAND = 0x00000010 -) - -// MessageBox default button types. -const ( - MB_DEFBUTTON1 = 0x00000000 - MB_DEFBUTTON2 = 0x00000100 - MB_DEFBUTTON3 = 0x00000200 - MB_DEFBUTTON4 = 0x00000300 -) - -// MessageBox modality types. -const ( - MB_APPLMODAL = 0x00000000 - MB_SYSTEMMODAL = 0x00001000 - MB_TASKMODAL = 0x00002000 -) - -// MessageBox miscellaneous types. -const ( - MB_DEFAULT_DESKTOP_ONLY = 0x00020000 - MB_RIGHT = 0x00080000 - MB_RTLREADING = 0x00100000 - MB_SETFOREGROUND = 0x00010000 - MB_TOPMOST = 0x00040000 - MB_SERVICE_NOTIFICATION = 0x00200000 -) - -// MessageBox return values. -const ( - IDABORT = 3 - IDCANCEL = 2 - IDCONTINUE = 11 - IDIGNORE = 5 - IDNO = 7 - IDOK = 1 - IDRETRY = 4 - IDTRYAGAIN = 10 - IDYES = 6 -) - -var ( - messageBox = user32.NewProc("MessageBoxW") -) - -func MessageBox(hWnd HWND, lpText string, lpCaption string, uType uint32) (result int, err error) { - r1, _, err := messageBox.Call( - uintptr(unsafe.Pointer(hWnd)), - uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpText))), - uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpCaption))), - uintptr(uType)) - if r1 == 0 { // failure - return 0, err - } - return int(r1), nil -} |