web/res/metadataplayer/Arrow.js
changeset 598 d366aa22bd79
child 694 e9400c80e1e4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/res/metadataplayer/Arrow.js	Thu May 03 17:52:07 2012 +0200
@@ -0,0 +1,105 @@
+IriSP.Widgets.Arrow = function(player, config) {
+    IriSP.Widgets.Widget.call(this, player, config);
+    this.current_pilot_widget = this.pilot_widget
+};
+
+IriSP.Widgets.Arrow.prototype = new IriSP.Widgets.Widget();
+
+IriSP.Widgets.Arrow.prototype.defaults = {
+    arrow_height : 16,
+    arrow_width : 24,
+    base_height : 0,
+    base_curve : 0,
+    fill_url: IriSP.widgetsDir + '/img/pinstripe.png',
+    fill_color: "#ffffff", //Gradients can be used, e.g. "90-#000-#fff" for vertical white-to-black
+    stroke_color: "#b7b7b7",
+    stroke_width: 1.5,
+    animation_speed: 20,
+    pilot_widget: "Annotation"
+}
+
+IriSP.Widgets.Arrow.prototype.draw = function() {
+    this.height = this.arrow_height + this.base_height;
+    this.$.addClass("Ldt-Arrow").css({
+        height: this.height + "px",
+        "margin-top": "1px"
+    });
+    this.paper = new Raphael(this.container, this.width, this.height );
+    window.myArrow = this;
+    this.svgArrow = this.paper.path('M0,' + this.height + 'L' + this.width + ',' + this.height);
+    this.svgArrow.attr({
+        stroke: this.stroke_color,
+        "stroke-width": this.stroke_width,
+        fill: this.fill_url ? ( 'url(' + this.fill_url + ')' ) : this.fill_color
+    });
+    this.moveTo(0);
+    this.bindPopcorn("IriSP.Arrow.updatePosition","onUpdatePosition");
+    this.bindPopcorn("IriSP.Arrow.takeover","onTakeover");
+    this.bindPopcorn("IriSP.Arrow.release","onRelease");
+}
+
+IriSP.Widgets.Arrow.prototype.drawAt = function(_x) {
+    _x = Math.floor(Math.max(0, Math.min(_x, this.width)));
+    var _d = 'M0,' + this.height
+        + 'L0,' + Math.min( this.height, this.arrow_height + this.base_curve)
+        + 'Q0,' + this.arrow_height
+        + ' ' + Math.max(0, Math.min(this.base_curve, _x - this.arrow_width / 2)) + ',' + this.arrow_height
+        + 'L' + Math.max(0, _x - this.arrow_width / 2) + ',' + this.arrow_height
+        + 'L' + Math.max(0, _x - this.arrow_width / 2) + ',' + Math.min(this.arrow_height, 2 * this.arrow_height * _x / this.arrow_width)
+        + 'L' + _x + ',0'
+        + 'L' + Math.min(this.width, _x + this.arrow_width / 2) + ',' + Math.min(this.arrow_height, 2 * this.arrow_height * ( this.width - _x ) / this.arrow_width)
+        + 'L' + Math.min(this.width, _x + this.arrow_width / 2) + ',' + this.arrow_height
+        + 'L' + Math.min(this.width, Math.max(this.width - this.base_curve, _x + this.arrow_width / 2)) + ',' + this.arrow_height
+        + 'Q' + this.width + ',' + this.arrow_height
+        + ' ' + this.width + ',' + Math.min( this.height, this.arrow_height + this.base_curve)
+        + 'L' + this.width + ',' + this.height;
+    this.svgArrow.attr({
+        path: _d
+    });
+}
+
+IriSP.Widgets.Arrow.prototype.moveTo = function(_x) {
+    this.targetX = Math.floor(Math.max(0, Math.min(_x, this.width)));
+    if (typeof this.animInterval === "undefined") {
+        this.animInterval = window.setInterval(
+            this.functionWrapper("increment"),
+            40
+        )
+    }
+    this.increment();
+}
+
+IriSP.Widgets.Arrow.prototype.increment = function() {
+    if (typeof this.currentX === "undefined") {
+        this.currentX = this.targetX;
+    }
+    if (this.currentX < this.targetX) {
+        this.currentX = Math.min(this.targetX, this.currentX + this.animation_speed);
+    }
+    if (this.currentX > this.targetX) {
+        this.currentX = Math.max(this.targetX, this.currentX - this.animation_speed);
+    }
+    if (this.currentX === this.targetX) {
+        window.clearInterval(this.animInterval);
+        this.animInterval = undefined;
+    }
+    this.drawAt(this.currentX);
+}
+
+IriSP.Widgets.Arrow.prototype.onUpdatePosition = function(_param) {
+    if (_param.widget === this.current_pilot_widget) {
+        if (typeof _param.x !== "undefined") {
+            this.moveTo(_param.x);
+        } else {
+            this.moveTo(this.width * _param.time / this.source.getDuration());
+        }
+    }
+}
+
+IriSP.Widgets.Arrow.prototype.onTakeover = function(_widget) {
+    this.current_pilot_widget = _widget;
+}
+
+IriSP.Widgets.Arrow.prototype.onRelease = function(_widget) {
+    this.current_pilot_widget = this.pilot_widget;
+}