[OpenBIOS] Using the command key
Programmingkid
programmingkidx at gmail.com
Sat Jul 20 02:09:32 CEST 2013
Over half a year ago there was talk about making the command key work on QEMU. I have finally made a patch that allows users of QEMU on Mac OS X be able to do this. Just apply the patch to QEMU to make the command key work.
You set the command key by using this option: -command-key 55. This will make the command key work in QEMU. To quit QEMU, type ALT - Q.
Let me know if you like it.
---
ui/cocoa.m | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 110 insertions(+), 13 deletions(-)
diff --git a/ui/cocoa.m b/ui/cocoa.m
index be49179..4884ccf 100644
--- a/ui/cocoa.m
+++ b/ui/cocoa.m
@@ -70,6 +70,7 @@ static DisplayChangeListener *dcl;
int gArgc;
char **gArgv;
+bool substitutingForCommandKey = false;
// keymap conversion
int keymap[] =
@@ -129,8 +130,8 @@ int keymap[] =
14, // 51 0x33 0x0e BKSP QZ_BACKSPACE
0, // 52 0x34 Undefined
1, // 53 0x35 0x01 ESC QZ_ESCAPE
- 0, // 54 0x36 QZ_RMETA
- 0, // 55 0x37 QZ_LMETA
+ 220, // 54 0x36 QZ_RMETA
+ 219, // 55 0x37 QZ_LMETA
42, // 56 0x38 0x2a L SHFT QZ_LSHIFT
58, // 57 0x39 0x3a CAPS QZ_CAPSLOCK
56, // 58 0x3A 0x38 L ALT QZ_LALT
@@ -249,6 +250,72 @@ static int cocoa_keycode_to_qemu(int keycode)
}
+// Used to map the guest OS's command key to a key on the host keyboard.
+// Uses the -command-key option.
+static void handleCommandKeyOption(int * argc, char * argv[])
+{
+ bool foundOption = false;
+ int newCommandKeyButtonValue, i;
+
+ #define BUFFER_SIZE 10
+ #define LEFT_COMMAND_KEY 0x37
+ #define RIGHT_COMMAND_KEY 0x36
+ #define GUEST_COMMAND_KEY 219
+
+ char keyValueString[BUFFER_SIZE];
+
+ for(i = 0; i < *argc; i++) {
+ if(strcmp(argv[i], "-command-key") == 0) {
+ foundOption = true;
+ break;
+ }
+ }
+
+ // if the -command-key option is found
+ if(foundOption == true)
+ {
+ snprintf(keyValueString, BUFFER_SIZE, "%s", argv[i+1]);
+ if(strlen(keyValueString) == 0) {
+ printf("Usage: -command-key <host keyboard key value>\n");
+ printf("This page will help: http://boredzo.org/blog/wp-content/uploads/2007/05/imtx-virtual-keycodes.png\n");
+ exit(-1000);
+ }
+
+ // if using hexadecimal notation (e.g. 0x37)
+ if(keyValueString[0] == '0' && toupper(keyValueString[1]) == 'X') {
+ sscanf(keyValueString, "%x", &newCommandKeyButtonValue);
+ }
+
+ // for decimal notation
+ else {
+ newCommandKeyButtonValue = atoi(keyValueString);
+ }
+
+ //in case the key specified is a negative value
+ if(newCommandKeyButtonValue < 0) {
+ printf("\aCan't use a negative value for the command key!\n");
+ exit(-1001);
+ }
+
+ // if the guest OS command key is set to the host keyboard's left or right command key
+ if(newCommandKeyButtonValue == LEFT_COMMAND_KEY || newCommandKeyButtonValue == RIGHT_COMMAND_KEY) {
+ substitutingForCommandKey = true;
+ printf("\nNote: since you are using the host command key, the ALT key can be used to send QEMU commands.\n");
+ printf("Example: use ALT-q to quit QEMU.\n\n");
+ }
+
+ // do the mapping
+ keymap[newCommandKeyButtonValue] = GUEST_COMMAND_KEY;
+
+ // Remove -command-key from the argument list.
+ // QEMU will complain if we don't.
+ for(int x = i; x < *argc - 2; x=x+2) {
+ argv[x] = argv[x+2];
+ argv[x+1] = argv[x+3];
+ }
+ *argc = *argc - 2;
+ }
+}
/*
------------------------------------------------------
@@ -491,20 +558,27 @@ QemuCocoaView *cocoaView;
int keycode;
NSPoint p = [event locationInWindow];
+ // The key used to send QEMU commands (e.g. Quit, Full Screen).
+ // Change this if you don't like using the ALT key.
+ // Possible values: NSShiftKeyMask, NSControlKeyMask, NSFunctionKeyMask, NSAlternateKeyMask
+ const int substituteKeyMask = NSAlternateKeyMask;
+
switch ([event type]) {
case NSFlagsChanged:
- keycode = cocoa_keycode_to_qemu([event keyCode]);
+ keycode = cocoa_keycode_to_qemu([event keyCode]);
if (keycode) {
if (keycode == 58 || keycode == 69) { // emulate caps lock and num lock keydown and keyup
kbd_put_keycode(keycode);
kbd_put_keycode(keycode | 0x80);
} else if (qemu_console_is_graphic(NULL)) {
- if (keycode & 0x80)
- kbd_put_keycode(0xe0);
- if (modifiers_state[keycode] == 0) { // keydown
+ if (keycode & 0x80) // if keycode >= 0x80, for those keycodes that need a 0xe0 sent first
+ {
+ kbd_put_keycode(0xe0);
+ }
+ if (modifiers_state[keycode] == 0) { // keydown
kbd_put_keycode(keycode & 0x7f);
modifiers_state[keycode] = 1;
- } else { // keyup
+ } else { // keyup
kbd_put_keycode(keycode | 0x80);
modifiers_state[keycode] = 0;
}
@@ -516,17 +590,37 @@ QemuCocoaView *cocoaView;
[self ungrabMouse];
}
break;
- case NSKeyDown:
+ case NSKeyDown:
+ // if substituting for the host command key and the substitute key is being held down - have QEMU handle it
+ if((substitutingForCommandKey == true) && ([event modifierFlags] & substituteKeyMask)) {
+ // recreate the event with the command key as the modifier
+ int modifiers = [event modifierFlags];
+ modifiers = modifiers | NSCommandKeyMask; // set the command key
+ modifiers = modifiers ^ substituteKeyMask; // unset the substitute key
+
+ event = [NSEvent keyEventWithType: [event type] location: [event locationInWindow] modifierFlags: modifiers
+ timestamp: [event timestamp] windowNumber: [event windowNumber] context: [event context] characters: [event characters]
+ charactersIgnoringModifiers: [event charactersIgnoringModifiers] isARepeat: [event isARepeat] keyCode: [event keyCode] ];
+ [NSApp sendEvent:event];
+ return;
+ }
- // forward command Key Combos
- if ([event modifierFlags] & NSCommandKeyMask) {
+ // if the command key is held down and we want QEMU to handle the event - not the guest OS
+ else if([event modifierFlags] & NSCommandKeyMask && substitutingForCommandKey == false) {
[NSApp sendEvent:event];
return;
}
+ // if the command key is held down and we want the guest OS to handle it
+ if(([event modifierFlags] & NSCommandKeyMask) && (substitutingForCommandKey == true)) {
+ kbd_put_keycode(219); // command key
+ kbd_put_keycode(cocoa_keycode_to_qemu([event keyCode])); // any other keys
+ return;
+ }
+
// default
keycode = cocoa_keycode_to_qemu([event keyCode]);
-
+
// handle control + alt Key Combos (ctrl+alt is reserved for QEMU)
if (([event modifierFlags] & NSControlKeyMask) && ([event modifierFlags] & NSAlternateKeyMask)) {
switch (keycode) {
@@ -584,7 +678,7 @@ QemuCocoaView *cocoaView;
if (qemu_console_is_graphic(NULL)) {
if (keycode & 0x80)
kbd_put_keycode(0xe0);
- kbd_put_keycode(keycode | 0x80); //add 128 to signal release of key
+ kbd_put_keycode(keycode | 0x80); //add 128 (0x80) to signal release of key
}
break;
case NSMouseMoved:
@@ -810,8 +904,9 @@ QemuCocoaView *cocoaView;
- (void)startEmulationWithArgc:(int)argc argv:(char**)argv
{
COCOA_DEBUG("QemuCocoaAppController: startEmulationWithArgc\n");
-
+
int status;
+ handleCommandKeyOption(&argc, argv);
status = qemu_main(argc, argv, *_NSGetEnviron());
exit(status);
}
@@ -1047,3 +1142,5 @@ void cocoa_display_init(DisplayState *ds, int full_screen)
// register cleanup function
atexit(cocoa_cleanup);
}
+
+
--
1.7.5.4
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