plugins/org.symbian.tools.tmw.previewer/preview/script/accelerometer.js
changeset 470 d4809db37847
parent 416 461da1f79f43
child 485 df4f55e8569e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/org.symbian.tools.tmw.previewer/preview/script/accelerometer.js	Thu Aug 19 17:48:04 2010 -0700
@@ -0,0 +1,392 @@
+function RotationSupport(accelerationCallback) {
+	this.controls = new RotationControls(accelerationCallback);
+}
+
+function RotationControls(accelCallback) {
+	this.angleX = 0;
+	this.angleY = 0;
+	this.angleZ = 0;
+	var control = this;
+	this.accelerationCallback = accelCallback;
+
+	setupListeners("xaxis", "xleft", "xright", updateAngleX, this.angleX);
+	setupListeners("yaxis", "yleft", "yright", updateAngleY, this.angleY);
+	setupListeners("zaxis", "zleft", "zright", updateAngleZ, this.angleZ);
+
+	window.setTimeout(function() {
+		control.paint(true);
+	}, 50);
+
+	function setupListeners(inputId, leftArrow, rightArrow, fn, initial) {
+		var input = $("#" + inputId);
+		input.numeric();
+		input.val(initial);
+		input.change(function() {
+			adjust(input, fn, 0);
+		});
+		handleButton(leftArrow, input, fn, -1);
+		handleButton(rightArrow, input, fn, 1);
+	}
+
+	function handleButton(buttonId, input, fn, increment) {
+		var id = false;
+		var timeout = false;
+		var stop = function() {
+			if (timeout) {
+				window.clearTimeout(timeout);
+				timeout = false;
+				adjust(input, fn, increment);
+			}
+			if (id) {
+				window.clearInterval(id);
+				id = false;
+			}
+		};
+
+		$("#" + buttonId).mousedown(function() {
+			if (!timeout && !id) {
+				timeout = window.setTimeout(function() {
+					id = window.setInterval(function() {
+						timeout = false;
+						adjust(input, fn, increment);
+					}, 10);
+				}, 250);
+			}
+		}).mouseup(stop).focusout(stop).blur(stop).mouseleave(stop).dblclick(
+				stop);
+	}
+
+	function adjust(input, callback, increment) {
+		var n = parseInt(input.val());
+		if (isNaN(n)) {
+			n = 0;
+		}
+		var val = fix(n + increment);
+		input.val(val);
+		callback(val);
+	}
+
+	function fix(n) {
+		while (n < -180) {
+			n = n + 360;
+		}
+		while (n >= 180) {
+			n = n - 360;
+		}
+		return n;
+	}
+
+	function updateAngleX(angle) {
+		control.angleX = angle;
+		control.paint();
+	}
+
+	function updateAngleY(angle) {
+		control.angleY = angle;
+		control.paint();
+	}
+
+	function updateAngleZ(angle) {
+		control.angleZ = angle;
+		control.paint();
+	}
+}
+
+RotationControls.prototype.paint = function(ignoreListeners) {
+	var width = 50, height = 100, depth = 10;
+	var margin = 5, bottomMargin = 15;
+
+	var canvas = document.getElementById("phoneposition");
+	var ctx = canvas.getContext("2d");
+	ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+	var r = 62;
+
+	var xy = (180 - this.angleX) * Math.PI / 180;
+	var yz = (this.angleY - 180) * Math.PI / 180;
+	var xz = (180 - this.angleZ) * Math.PI / 180 + Math.PI / 2;
+
+	var back = translateBack(xy, xz, yz);
+	if ((back[0].z + back[2].z) / 2 < 0) {
+		paint(canvas, ctx, back);
+	} else {
+		paint(canvas, ctx, translateFace(xy, xz, yz));
+		paintScreen(canvas, ctx, translateScreen(xy, xz, yz));
+	}
+
+	var dz = 0;
+	if (back[0].z > back[3].z) {
+		var bottom = translateBottom(xy, xz, yz);
+		paint(canvas, ctx, bottom);
+		dz = bottom[1].y - bottom[0].y;
+	} else if (back[0].z != back[3].z) {
+		var top = translateTop(xy, xz, yz);
+		paint(canvas, ctx, top);
+		dz = top[1].y - top[0].y;
+	}
+
+	if (back[1].z > back[0].z) {
+		paint(canvas, ctx, translateLeft(xy, xz, yz));
+	} else if (back[1].z != back[0].z) {
+		paint(canvas, ctx, translateRight(xy, xz, yz));
+	}
+	if (!ignoreListeners) {
+		var accelX = (back[1].y - back[0].y) / width;
+		var accelY = (back[0].y - back[3].y) / height;
+		var accelZ = dz / depth;
+		notifyAcceleration(accelX, accelY, accelZ);
+	}
+	function translateFace(xy, xz, yz) {
+		var px = width / 2;
+		var py = height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px,
+			y : py,
+			z : pz
+		}, {
+			x : px,
+			y : -py,
+			z : pz
+		}, {
+			x : -px,
+			y : -py,
+			z : pz
+		}, {
+			x : -px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateScreen(xy, xz, yz) {
+		var px = width / 2;
+		var py = height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px - margin,
+			y : py - bottomMargin,
+			z : pz
+		}, {
+			x : px - margin,
+			y : -py + bottomMargin,
+			z : pz
+		}, {
+			x : -px + margin,
+			y : -py + margin,
+			z : pz
+		}, {
+			x : -px + margin,
+			y : py - margin,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateBack(xy, xz, yz) {
+		var px = width / 2;
+		var py = height / 2;
+		var pz = -depth / 2;
+		var points = [ {
+			x : px,
+			y : py,
+			z : pz
+		}, {
+			x : px,
+			y : -py,
+			z : pz
+		}, {
+			x : -px,
+			y : -py,
+			z : pz
+		}, {
+			x : -px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateTop(xy, xz, yz) {
+		var px = width / 2;
+		var py = height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px,
+			y : -py,
+			z : pz
+		}, {
+			x : px,
+			y : -py,
+			z : -pz
+		}, {
+			x : px,
+			y : py,
+			z : -pz
+		}, {
+			x : px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateBottom(xy, xz, yz) {
+		var px = -width / 2;
+		var py = height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px,
+			y : -py,
+			z : pz
+		}, {
+			x : px,
+			y : -py,
+			z : -pz
+		}, {
+			x : px,
+			y : py,
+			z : -pz
+		}, {
+			x : px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateLeft(xy, xz, yz) {
+		var px = width / 2;
+		var py = height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px,
+			y : py,
+			z : pz
+		}, {
+			x : px,
+			y : py,
+			z : -pz
+		}, {
+			x : -px,
+			y : py,
+			z : -pz
+		}, {
+			x : -px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function translateRight(xy, xz, yz) {
+		var px = width / 2;
+		var py = -height / 2;
+		var pz = depth / 2;
+		var points = [ {
+			x : px,
+			y : py,
+			z : pz
+		}, {
+			x : px,
+			y : py,
+			z : -pz
+		}, {
+			x : -px,
+			y : py,
+			z : -pz
+		}, {
+			x : -px,
+			y : py,
+			z : pz
+		} ];
+		return rotate(points, xy, xz, yz);
+	}
+
+	function rotate(points, xy, xz, yz) {
+		var res = new Array();
+		for ( var p in points) {
+			var px = points[p].x;
+			var py = points[p].y;
+			var pz = points[p].z;
+
+			var rx = Math.sqrt(px * px + py * py);
+			var angXY = Math.atan(px / py) + (px < 0 ? Math.PI : 0);
+
+			px = rx * Math.sin(angXY + xy);
+			py = rx * Math.cos(angXY + xy);
+
+			var rz = Math.sqrt(px * px + pz * pz);
+			var angXZ = (px == 0 ? 0 : Math.atan(pz / px))
+					+ (px < 0 ? Math.PI : 0);
+
+			px = rz * Math.sin(angXZ + xz);
+			pz = rz * Math.cos(angXZ + xz);
+
+			var ry = Math.sqrt(py * py + pz * pz);
+			var angYZ = (pz == 0 ? 0 : Math.atan(py / pz))
+					+ (pz < 0 ? Math.PI : 0);
+
+			py = ry * Math.sin(angYZ + yz);
+			pz = ry * Math.cos(angYZ + yz);
+
+			res.push( {
+				x : px,
+				y : py,
+				z : pz
+			});
+		}
+		return res;
+	}
+
+	function paint(canvas, ctx, points) {
+		var xcoord = canvas.width / 2;
+		var ycoord = canvas.height / 2;
+
+		ctx.fillStyle = "#FAC82F";
+		ctx.strokeStyle = "black";
+		ctx.beginPath();
+		ctx.moveTo(xcoord + points[3].x, ycoord + points[3].y);
+		for (point in points) {
+			ctx.lineTo(xcoord + points[point].x, ycoord + points[point].y);
+		}
+		ctx.fill();
+		ctx.beginPath();
+		ctx.moveTo(xcoord + points[3].x, ycoord + points[3].y);
+		for (point in points) {
+			ctx.lineTo(xcoord + points[point].x, ycoord + points[point].y);
+		}
+		ctx.stroke();
+	}
+
+	function paintScreen(canvas, ctx, screen) {
+		var xcoord = canvas.width / 2;
+		var ycoord = canvas.height / 2;
+
+		ctx.fillStyle = "grey";
+		ctx.beginPath();
+		ctx.moveTo(xcoord + screen[3].x, ycoord + screen[3].y);
+		for (point in screen) {
+			ctx.lineTo(xcoord + screen[point].x, ycoord + screen[point].y);
+		}
+		ctx.fill();
+	}
+
+	function notifyAcceleration(x, y, z) {
+		accelerationCallback(x, y, z);
+	}
+};
+
+RotationSupport.prototype.setAngles = function(x, y, z) {
+	this.controls.angleX = x;
+	this.controls.angleY = z; // It is extremly messy - this UI was developed
+	// separately from the rest and follows
+	this.controls.angleZ = y; // different conventions
+
+	$("#xaxis").val(this.controls.angleX);
+	$("#yaxis").val(this.controls.angleY);
+	$("#zaxis").val(this.controls.angleZ);
+
+	this.controls.paint(true);
+};