gemkeyname patch - Pd-dev

26 Sep 2004

Hi all,
This patch changes the behaviour of gemkeyname, so that it will return the  
actual key pressed including modifyers held.
This only applies to linux. I don't know if and how it should be changed  
for windows/OSX.
This means gemkeyname will return A when shift-a is pressed, and will give  
the keyname as a symbol only for the modifier-keys and things like  
insert/tab/etc. Also ctrl-letter now gets passed as a /x0something number.
Basically it now behaves like [keyname] except for the number-pad.
The previous behaviour was to pass the keyname of every key pressed,  
including modifiers etc.
gemkeyboard still gives the raw keycodes, so you can use that.
I needed it to make a typewriter in Gem which would otherwise need a key  
parser written in pd.
I hope this will get applied to Gem asap.
regards
Gerard

--- gem-0.90.0/src/Base/GemMan.cpp      2004-05-16 19:22:49.000000000 +0000
+++ gem-0.90.0-key/src/Base/GemMan.cpp  2004-09-26 13:34:44.000000000 +0000
@@ -172,7 +172,9 @@
    XKeyEvent* kb  = (XKeyEvent*)&event;
    XResizeRequestEvent *res = (XResizeRequestEvent*)&event;
    win = GemMan::getWindowInfo();
-
+  char keystring[2];
+  KeySym keysym_return;
+
    while (XCheckWindowEvent(win.dpy,win.win,
                            ResizeRedirectMask |
                            KeyPressMask | KeyReleaseMask |
@@ -194,17 +196,37 @@
           triggerMotionEvent(eb->x, eb->y);
           break;
         case KeyPress:
-         triggerKeyboardEvent(XKeysymToString(XKeycodeToKeysym(win.dpy,  
kb->keycode, 0)), kb->keycode, 1);
-         break;
+               if (XLookupString(kb,keystring,2,&keysym_return,NULL)==0) {
+                       //modifier key:use keysym
+                        
triggerKeyboardEvent(XKeysymToString(keysym_return), kb->keycode, 1);
+               }
+
+               if ( (keysym_return & 0xff00)== 0xff00 ) {
+                       //non alphanumeric key: use keysym
+                        
triggerKeyboardEvent(XKeysymToString(keysym_return), kb->keycode, 1);
+               } else {
+                       triggerKeyboardEvent(keystring, kb->keycode, 1);
+               }
+                       break;
         case KeyRelease:
-         triggerKeyboardEvent(XKeysymToString(XKeycodeToKeysym(win.dpy,  
kb->keycode, 0)), kb->keycode, 0);
-         break;
+               if (XLookupString(kb,keystring,2,&keysym_return,NULL)==0) {
+                       //modifier key:use keysym
+                        
triggerKeyboardEvent(XKeysymToString(keysym_return), kb->keycode, 0);
+               }
+
+               if ( (keysym_return & 0xff00)== 0xff00 ) {
+                       //non alphanumeric key: use keysym
+                        
triggerKeyboardEvent(XKeysymToString(keysym_return), kb->keycode, 0);
+               } else {
+                       triggerKeyboardEvent(keystring, kb->keycode, 0);
+               }
+               break;
         case ResizeRequest:
-         triggerResizeEvent(res->width, res->height);
-         XResizeWindow(win.dpy, win.win, res->width, res->height);
-         break;
+               triggerResizeEvent(res->width, res->height);
+               XResizeWindow(win.dpy, win.win, res->width, res->height);
+               break;
         default:
-         break;
+               break;
         }
      }
    clock_delay(s_windowClock, s_windowDelTime);

    