GCFunction shortcuts

examples/simple/gcinvert.js

@@ -0,0 +1,36 @@
+/*
+ * GCFunction usage example
+ */
+var x11 = require('../../lib');
+
+x11.createClient(function(err, display) {
+  var X = display.client;
+  var root = display.screen[0].root;
+  var white = display.screen[0].white_pixel;
+  var black = display.screen[0].black_pixel;
+
+  var wid = X.AllocID();
+  X.CreateWindow(wid, root, 0, 0, 400, 300, 0, 0, 0, 0, { 
+    backgroundPixel: black,
+    eventMask: x11.eventMask.ButtonPress|x11.eventMask.Exposure });
+  var gc = X.AllocID();
+  X.CreateGC(gc, wid, {foreground : white, 'function' : x11.gcFunction.GXinvert});
+  X.MapWindow(wid);
+
+
+  X.on('event', function(ev) {
+
+    if (ev.type === 12) {
+      X.PolyFillRectangle(wid, gc, [0, 0, 400, 300]);
+    }
+
+    if (ev.type === 4) {
+      var x = ev.x;
+      var y = ev.y;
+
+      X.PolyFillRectangle(wid, gc, [x - 25, y - 25, 50, 50]);
+    }
+
+  });
+});
+

lib/gcfunction.js

@@ -0,0 +1,22 @@
+/*
+ * GCFunction named shortcuts
+ */
+
+module.exports = {
+  GXclear        : 0x0,
+  GXand          : 0x1,
+  GXandReverse   : 0x2,
+  GXcopy         : 0x3,
+  GXandInverted  : 0x4,
+  GXnoop         : 0x5,
+  GXxor          : 0x6,
+  GXor           : 0x7,
+  GXnor          : 0x8,
+  GXequiv        : 0x9,
+  GXinvert       : 0xa,
+  GXorReverse    : 0xb,
+  GXcopyInverted : 0xc,
+  GXorInverted   : 0xd,
+  GXnand         : 0xe,
+  GXset          : 0xf
+};

lib/index.js

@@ -11,6 +11,11 @@ Object.defineProperty(module.exports, 'keySyms', {
   get: function() { return require('./keysyms'); }
 });
 
+Object.defineProperty(module.exports, 'gcFunction', {
+  enumerable: true,
+  get: function() { return require('./gcfunction'); }
+});
+
 //TODO:
 // keepe everything in namespace for consistensy (eventMask, keySyms, class, destination ...
 // or put most used constants to top namespace? (currently class and destination in top)