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KasmVNC/contrib/packages/rpm/el6/SOURCES/fltk-1_v4.3.x-keyboard-win32.patch
matt 408c005d3e Initial commit
2020-09-20 12:16:44 +00:00

257 lines
8.4 KiB
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diff -ur fltk-1.3.0r9293.org/src/Fl_win32.cxx fltk-1.3.0r9293/src/Fl_win32.cxx
--- fltk-1.3.0r9293.org/src/Fl_win32.cxx 2012-06-18 09:07:56.522314557 +0200
+++ fltk-1.3.0r9293/src/Fl_win32.cxx 2012-06-18 09:08:07.392836285 +0200
@@ -87,6 +87,8 @@
static Fl_Display_Device fl_gdi_display(&fl_gdi_driver);
Fl_Display_Device *Fl_Display_Device::_display = &fl_gdi_display; // the platform display
+bool use_simple_keyboard = false;
+
// dynamic wsock dll handling api:
#if defined(__CYGWIN__) && !defined(SOCKET)
# define SOCKET int
@@ -120,6 +122,8 @@
* size and link dependencies.
*/
static HMODULE s_imm_module = 0;
+typedef BOOL (WINAPI* flTypeImmAssociateContextEx)(HWND, HIMC, DWORD);
+static flTypeImmAssociateContextEx flImmAssociateContextEx = 0;
typedef HIMC (WINAPI* flTypeImmGetContext)(HWND);
static flTypeImmGetContext flImmGetContext = 0;
typedef BOOL (WINAPI* flTypeImmSetCompositionWindow)(HIMC, LPCOMPOSITIONFORM);
@@ -135,6 +139,7 @@
if (!s_imm_module)
Fl::fatal("FLTK Lib Error: IMM32.DLL file not found!\n\n"
"Please check your input method manager library accessibility.");
+ flImmAssociateContextEx = (flTypeImmAssociateContextEx)GetProcAddress(s_imm_module, "ImmAssociateContextEx");
flImmGetContext = (flTypeImmGetContext)GetProcAddress(s_imm_module, "ImmGetContext");
flImmSetCompositionWindow = (flTypeImmSetCompositionWindow)GetProcAddress(s_imm_module, "ImmSetCompositionWindow");
flImmReleaseContext = (flTypeImmReleaseContext)GetProcAddress(s_imm_module, "ImmReleaseContext");
@@ -413,7 +418,12 @@
}
}
- TranslateMessage(&fl_msg);
+ // Don't bother with key to character translation as we do
+ // it manually for simpley keyboard widgets. In fact, calling
+ // TranslateMessage() just makes it more difficult as it sets
+ // a bunch of internal state.
+ if (!use_simple_keyboard)
+ TranslateMessage(&fl_msg);
DispatchMessageW(&fl_msg);
have_message = PeekMessageW(&fl_msg, NULL, 0, 0, PM_REMOVE);
}
@@ -638,6 +648,49 @@
}
}
+void fl_update_focus(void)
+{
+ Fl_Widget *focus;
+ Fl_Window *win;
+
+ get_imm_module();
+
+ focus = Fl::grab();
+ if (!focus)
+ focus = Fl::focus();
+ if (!focus)
+ return;
+
+ // Grabs are special in that events are sent to the first
+ // available window
+ if (focus == Fl::grab())
+ win = Fl::first_window();
+ else {
+ win = focus->as_window();
+ if (!win)
+ win = focus->window();
+ }
+
+ if (!win) {
+ Fl::warning("Cannot find window for widget receiving focus");
+ return;
+ }
+
+ // No Win32 window created yet
+ if (!Fl_X::i(win) || !fl_xid(win))
+ return;
+
+ if (focus->simple_keyboard()) {
+ use_simple_keyboard = true;
+ if (flImmGetContext(fl_xid(win)) != 0)
+ flImmAssociateContextEx(fl_xid(win), 0, 0);
+ } else {
+ use_simple_keyboard = false;
+ if (flImmGetContext(fl_xid(win)) == 0)
+ flImmAssociateContextEx(fl_xid(win), 0, IACE_DEFAULT);
+ }
+}
+
HWND fl_capture;
static int mouse_event(Fl_Window *window, int what, int button,
@@ -785,6 +838,27 @@
return extended ? extendedlut[vk] : vklut[vk];
}
+static xchar msdead2fltk(xchar in)
+{
+ switch (in) {
+ case 0x0060: // GRAVE ACCENT
+ return 0x0300; // COMBINING GRAVE ACCENT
+ case 0x00b4: // ACUTE ACCENT
+ return 0x0301; // COMBINING ACUTE ACCENT
+ case 0x005e: // CIRCUMFLEX ACCENT
+ return 0x0302; // COMBINING CIRCUMFLEX ACCENT
+ case 0x007e: // TILDE
+ return 0x0303; // COMBINING TILDE
+ case 0x00a8: // DIAERESIS
+ return 0x0308; // COMBINING DIAERESIS
+ // FIXME: Windows dead key behaviour isn't documented and I don't have
+ // any more keyboards to test with...
+ }
+
+ // hope that Windows gave us something proper to begin with
+ return in;
+}
+
#if USE_COLORMAP
extern HPALETTE fl_select_palette(void); // in fl_color_win32.cxx
#endif
@@ -846,6 +920,8 @@
//fl_msg.pt = ???
//fl_msg.lPrivate = ???
+ MSG fl_orig_msg = fl_msg;
+
Fl_Window *window = fl_find(hWnd);
if (window) switch (uMsg) {
@@ -1025,23 +1101,82 @@
if (GetKeyState(VK_SCROLL)) state |= FL_SCROLL_LOCK;
Fl::e_state = state;
static char buffer[1024];
- if (uMsg == WM_CHAR || uMsg == WM_SYSCHAR) {
+ if (use_simple_keyboard) {
+ BYTE keystate[256];
+ WCHAR wbuf[8];
+ int ret;
+
+ // I'm not sure if we ever get WM_CHAR (& friends) without an initial
+ // WM_KEYDOWN (& friends), but if we do then we should not send such
+ // side band events to simple keyboard widgets.
+ if ((fl_orig_msg.message != WM_KEYDOWN) &&
+ (fl_orig_msg.message != WM_SYSKEYDOWN) &&
+ (fl_orig_msg.message != WM_KEYUP) &&
+ (fl_orig_msg.message != WM_SYSKEYUP))
+ break;
+
+ GetKeyboardState(keystate);
+
+ // Pressing Ctrl wreaks havoc with the symbol lookup, so turn that off.
+ // But AltGr shows up as Ctrl+Alt in Windows, so keep Ctrl if Alt is
+ // active.
+ if (!(keystate[VK_MENU] & 0x80))
+ keystate[VK_CONTROL] = keystate[VK_LCONTROL] = keystate[VK_RCONTROL] = 0;
+
+ // We cannot inspect or modify Windows' internal state of the keyboard
+ // so we have to try to infer information from ToUnicode() and wedge
+ // things into a known state.
+ for (int i = 0;i < 2;i++) {
+ ret = ToUnicode(fl_orig_msg.wParam, 0, keystate, wbuf,
+ sizeof(wbuf)/sizeof(wbuf[0]), 0);
+
+ // No symbol for this key (or unexpected length)
+ if ((ret == 0) || (ret < -1)) {
+ buffer[0] = 0;
+ Fl::e_length = 0;
+ break;
+ }
+
+ // A dead key. Convert this to a Unicode combining character so
+ // that the application can tell the difference between dead and
+ // normal keys.
+ if (ret == -1) {
+ xchar u = (xchar) msdead2fltk(wbuf[0]);
+ Fl::e_length = fl_utf8fromwc(buffer, 1024, &u, 1);
+ buffer[Fl::e_length] = 0;
+ break;
+ }
+
+ // If we have two characters (or more) from ToUnicode(), that's
+ // an invalid sequence. One character chould mean a proper symbol,
+ // or it could mean a composed one. In both cases we need to call
+ // ToUnicode() again to get something sane.
+ if (i == 0)
+ continue;
+
+ // We should now have something sane. Give whatever we have to the
+ // application.
+ Fl::e_length = fl_utf8fromwc(buffer, 1024, wbuf, ret);
+ buffer[Fl::e_length] = 0;
+ }
+ } else if (uMsg == WM_CHAR || uMsg == WM_SYSCHAR) {
xchar u = (xchar) wParam;
// Fl::e_length = fl_unicode2utf(&u, 1, buffer);
Fl::e_length = fl_utf8fromwc(buffer, 1024, &u, 1);
buffer[Fl::e_length] = 0;
+ } else {
+ buffer[0] = 0;
+ Fl::e_length = 0;
+ }
-
- } else if (Fl::e_keysym >= FL_KP && Fl::e_keysym <= FL_KP_Last) {
- if (state & FL_NUM_LOCK) {
- // Convert to regular keypress...
- buffer[0] = Fl::e_keysym-FL_KP;
- Fl::e_length = 1;
- } else {
- // Convert to special keypress...
- buffer[0] = 0;
- Fl::e_length = 0;
+ // The keypad area is a bit odd in that we need to change the keysym
+ // to properly indicate what the user meant, unlike other keys where
+ // we normally change the text and keep keysym stable.
+ if (Fl::e_keysym >= FL_KP && Fl::e_keysym <= FL_KP_Last) {
+ // The initial mapping tables give us a keysym that corresponds to
+ // numlock being on, so we only do something when it is off.
+ if (!(state & FL_NUM_LOCK)) {
switch (Fl::e_keysym) {
case FL_KP + '0' :
Fl::e_keysym = FL_Insert;
@@ -1073,30 +1208,10 @@
case FL_KP + '.' :
Fl::e_keysym = FL_Delete;
break;
- case FL_KP + '/' :
- case FL_KP + '*' :
- case FL_KP + '-' :
- case FL_KP + '+' :
- buffer[0] = Fl::e_keysym-FL_KP;
- Fl::e_length = 1;
- break;
}
}
- } else if ((lParam & (1<<31))==0) {
-#ifdef FLTK_PREVIEW_DEAD_KEYS
- if ((lParam & (1<<24))==0) { // clear if dead key (always?)
- xchar u = (xchar) wParam;
- Fl::e_length = fl_utf8fromwc(buffer, 1024, &u, 1);
- buffer[Fl::e_length] = 0;
- } else { // set if "extended key" (never printable?)
- buffer[0] = 0;
- Fl::e_length = 0;
- }
-#else
- buffer[0] = 0;
- Fl::e_length = 0;
-#endif
}
+
Fl::e_text = buffer;
if (lParam & (1<<31)) { // key up events.
if (Fl::handle(FL_KEYUP, window)) return 0;
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