Out with the old...

1 files changed, 0 insertions, 238 deletions

diff --git a/stdwndclass_windows.go b/stdwndclass_windows.go
deleted file mode 100644
index ef6a053..0000000
--- a/stdwndclass_windows.go
+++ /dev/null
@@ -1,238 +0,0 @@
-// 8 february 2014
-
-package ui
-
-import (
-	"fmt"
-	"syscall"
-	"unsafe"
-)
-
-var (
-	stdWndClass = toUTF16("gouiwnd")
-)
-
-var (
-	_defWindowProc = user32.NewProc("DefWindowProcW")
-)
-
-func defWindowProc(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT {
-	r1, _, _ := _defWindowProc.Call(
-		uintptr(hwnd),
-		uintptr(uMsg),
-		uintptr(wParam),
-		uintptr(lParam))
-	return _LRESULT(r1)
-}
-
-// don't worry about error returns from GetWindowLongPtr()/SetWindowLongPtr()
-// see comments of http://blogs.msdn.com/b/oldnewthing/archive/2014/02/03/10496248.aspx
-
-func getWindowLongPtr(hwnd _HWND, what uintptr) uintptr {
-	r1, _, _ := _getWindowLongPtr.Call(
-		uintptr(hwnd),
-		what)
-	return r1
-}
-
-func setWindowLongPtr(hwnd _HWND, what uintptr, value uintptr) {
-	_setWindowLongPtr.Call(
-		uintptr(hwnd),
-		what,
-		value)
-}
-
-// we can store a pointer in extra space provided by Windows
-// we'll store sysData there
-// see http://blogs.msdn.com/b/oldnewthing/archive/2005/03/03/384285.aspx
-
-func getSysData(hwnd _HWND) *sysData {
-	return (*sysData)(unsafe.Pointer(getWindowLongPtr(hwnd, negConst(_GWLP_USERDATA))))
-}
-
-func storeSysData(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT {
-	// we can get the lpParam from CreateWindowEx() in WM_NCCREATE and WM_CREATE
-	// we can freely skip any messages that come prior
-	// see http://blogs.msdn.com/b/oldnewthing/archive/2005/04/22/410773.aspx and http://blogs.msdn.com/b/oldnewthing/archive/2014/02/03/10496248.aspx (note the date on the latter one!)
-	if uMsg == _WM_NCCREATE {
-		// the lpParam to CreateWindowEx() is the first uintptr of the CREATESTRUCT
-		// so rather than create that whole structure, we'll just grab the uintptr at the address pointed to by lParam
-		cs := (*uintptr)(unsafe.Pointer(lParam))
-		saddr := *cs
-		setWindowLongPtr(hwnd, negConst(_GWLP_USERDATA), saddr)
-		// also set s.hwnd here so it can be used by other window messages right away
-		s := (*sysData)(unsafe.Pointer(saddr))
-		s.hwnd = hwnd
-	}
-	// then regardless of what happens, defer to DefWindowProc() (if you trace the execution of the above links, this is what they do)
-	return defWindowProc(hwnd, uMsg, wParam, lParam)
-}
-
-var (
-	_getFocus = user32.NewProc("GetFocus")
-	_isChild  = user32.NewProc("IsChild")
-	// _setFocus in area_windows.go
-)
-
-// this is needed to ensure focus is preserved when switching away from and back to our program
-// from http://blogs.msdn.com/b/oldnewthing/archive/2014/05/21/10527168.aspx
-func (s *sysData) handleFocus(wParam _WPARAM) {
-	// parameter splitting from Microsoft's windowsx.h
-	state := uint32(wParam.LOWORD()) // originally UINT
-	minimized := wParam.HIWORD() != 0
-
-	if minimized { // don't do anything on minimize
-		return
-	}
-	if state == _WA_INACTIVE { // focusing out
-		old, _, _ := _getFocus.Call()
-		if _HWND(old) != _HWND(_NULL) { // if there is one
-			r1, _, _ := _isChild.Call(
-				uintptr(s.hwnd),
-				old)
-			if r1 != 0 {
-				s.lastfocus = _HWND(old)
-			}
-		}
-	} else { // focusing in
-		if s.lastfocus != _HWND(_NULL) { // if we have one
-			// don't bother checking SetFocus()'s error; see http://stackoverflow.com/questions/24073695/winapi-can-setfocus-return-null-without-an-error-because-thats-what-im-see/24074912#24074912
-			_setFocus.Call(uintptr(s.lastfocus))
-		}
-	}
-}
-
-func stdWndProc(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESULT {
-	s := getSysData(hwnd)
-	if s == nil { // not yet saved
-		return storeSysData(hwnd, uMsg, wParam, lParam)
-	}
-	switch uMsg {
-	case msgPost:
-		data := (*interface{})(unsafe.Pointer(lParam))
-		s.post(*data)
-		return 0
-	case _WM_COMMAND:
-		id := _HMENU(wParam.LOWORD())
-		s.childrenLock.Lock()
-		ss := s.children[id]
-		s.childrenLock.Unlock()
-		switch ss.ctype {
-		case c_button:
-			if wParam.HIWORD() == _BN_CLICKED {
-				ss.event()
-			}
-		case c_checkbox:
-			// we opt into doing this ourselves because http://blogs.msdn.com/b/oldnewthing/archive/2014/05/22/10527522.aspx
-			if wParam.HIWORD() == _BN_CLICKED {
-				state, _, _ := _sendMessage.Call(
-					uintptr(ss.hwnd),
-					uintptr(_BM_GETCHECK),
-					uintptr(0),
-					uintptr(0))
-				if state == _BST_CHECKED {
-					state = _BST_UNCHECKED
-				} else if state == _BST_UNCHECKED {
-					state = _BST_CHECKED
-				}
-				_sendMessage.Call(
-					uintptr(ss.hwnd),
-					uintptr(_BM_SETCHECK),
-					state, // already uintptr
-					uintptr(0))
-			}
-		}
-		return 0
-	case _WM_ACTIVATE:
-		s.handleFocus(wParam)
-		return 0
-	case _WM_GETMINMAXINFO:
-		mm := lParam.MINMAXINFO()
-		// ... minimum size
-		_ = mm
-		return 0
-	case _WM_SIZE:
-		if s.allocate != nil {
-			var r _RECT
-
-			r1, _, err := _getClientRect.Call(
-				uintptr(hwnd),
-				uintptr(unsafe.Pointer(&r)))
-			if r1 == 0 {
-				panic("GetClientRect failed: " + err.Error())
-			}
-			// top-left corner of a client rect is always (0,0) so no need for left/top
-			s.resizeWindow(int(r.right), int(r.bottom))
-			// TODO use the Defer movement functions here?
-			// TODO redraw window and all children here?
-		}
-		return 0
-	case _WM_CLOSE:
-		if s.close() {
-			// TODO destroy
-			s.hide()
-		}
-		return 0
-	default:
-		return defWindowProc(hwnd, uMsg, wParam, lParam)
-	}
-	panic(fmt.Sprintf("stdWndProc message %d did not return: internal bug in ui library", uMsg))
-}
-
-type _WNDCLASS struct {
-	style         uint32
-	lpfnWndProc   uintptr
-	cbClsExtra    int32 // originally int
-	cbWndExtra    int32 // originally int
-	hInstance     _HANDLE
-	hIcon         _HANDLE
-	hCursor       _HANDLE
-	hbrBackground _HBRUSH
-	lpszMenuName  *uint16
-	lpszClassName uintptr
-}
-
-var (
-	icon, cursor _HANDLE
-)
-
-var (
-	_registerClass = user32.NewProc("RegisterClassW")
-)
-
-func registerStdWndClass() (err error) {
-	wc := &_WNDCLASS{
-		lpszClassName: utf16ToArg(stdWndClass),
-		lpfnWndProc:   syscall.NewCallback(stdWndProc),
-		hInstance:     hInstance,
-		hIcon:         icon,
-		hCursor:       cursor,
-		hbrBackground: _HBRUSH(_COLOR_BTNFACE + 1),
-	}
-	r1, _, err := _registerClass.Call(uintptr(unsafe.Pointer(wc)))
-	if r1 == 0 { // failure
-		return err
-	}
-	return nil
-}
-
-// no need to use/recreate MAKEINTRESOURCE() here as the Windows constant generator already took care of that because Microsoft's headers do already
-func initWndClassInfo() (err error) {
-	r1, _, err := user32.NewProc("LoadIconW").Call(
-		uintptr(_NULL),
-		uintptr(_IDI_APPLICATION))
-	if r1 == 0 { // failure
-		return fmt.Errorf("error getting window icon: %v", err)
-	}
-	icon = _HANDLE(r1)
-
-	r1, _, err = user32.NewProc("LoadCursorW").Call(
-		uintptr(_NULL),
-		uintptr(_IDC_ARROW))
-	if r1 == 0 { // failure
-		return fmt.Errorf("error getting window cursor: %v", err)
-	}
-	cursor = _HANDLE(r1)
-
-	return nil
-}