CCArmatureCanvasRenderCmd.js

/****************************************************************************
 Copyright (c) 2013-2014 Chukong Technologies Inc.

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 of this software and associated documentation files (the "Software"), to deal
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(function(){
    ccs.Armature.RenderCmd = {
        _updateAnchorPointInPoint: function(){
            var node = this._node;
            var contentSize = node._contentSize, anchorPoint = node._anchorPoint, offsetPoint = node._offsetPoint;
            this._anchorPointInPoints.x = contentSize.width * anchorPoint.x - offsetPoint.x;
            this._anchorPointInPoints.y = contentSize.height * anchorPoint.y - offsetPoint.y;

            this._realAnchorPointInPoints.x = contentSize.width * anchorPoint.x;
            this._realAnchorPointInPoints.y = contentSize.height * anchorPoint.y;
            this.setDirtyFlag(cc.Node._dirtyFlags.transformDirty);
        },

        getAnchorPointInPoints: function(){
            return cc.p(this._realAnchorPointInPoints);
        }
    };
})();

(function(){
    ccs.Armature.CanvasRenderCmd = function(renderableObject){
        cc.Node.CanvasRenderCmd.call(this, renderableObject);
        this._needDraw = true;

        this._realAnchorPointInPoints = new cc.Point(0,0);
        this._startRenderCmd = new cc.CustomRenderCmd(this, this._startCmdCallback);
        this._RestoreRenderCmd = new cc.CustomRenderCmd(this, this._RestoreCmdCallback);
    };

    var proto = ccs.Armature.CanvasRenderCmd.prototype = Object.create(cc.Node.CanvasRenderCmd.prototype);
    cc.inject(ccs.Armature.RenderCmd, proto);
    proto.constructor = ccs.Armature.CanvasRenderCmd;

    proto._startCmdCallback = function(ctx, scaleX, scaleY){
        var node = this._node, parent = node._parent;
        this.transform(parent ? parent._renderCmd : null);

        var wrapper = ctx || cc._renderContext;
        wrapper.save();

        //set to armature mode
        wrapper._switchToArmatureMode(true, this._worldTransform, scaleX, scaleY);
    };

    proto.transform = function(parentCmd, recursive){
        ccs.Node.CanvasRenderCmd.prototype.transform.call(this, parentCmd, recursive);

        var locChildren = this._node._children;
        for (var i = 0, len = locChildren.length; i< len; i++) {
            var selBone = locChildren[i];
            if (selBone && selBone.getDisplayRenderNode) {
                var selNode = selBone.getDisplayRenderNode();
                if (selNode && selNode._renderCmd){
                    var cmd = selNode._renderCmd;
                    cmd.transform(null);   //must be null, use transform in armature mode

                    //update displayNode's color and opacity, because skin didn't call visit()
                    var parentColor = selBone._renderCmd._displayedColor, parentOpacity = selBone._renderCmd._displayedOpacity;
                    var flags = cc.Node._dirtyFlags, locFlag = cmd._dirtyFlag;
                    var colorDirty = locFlag & flags.colorDirty,
                        opacityDirty = locFlag & flags.opacityDirty;
                    if(colorDirty)
                        cmd._updateDisplayColor(parentColor);
                    if(opacityDirty)
                        cmd._updateDisplayOpacity(parentOpacity);
                }
            }
        }
    };

    proto._RestoreCmdCallback = function(wrapper){
        this._cacheDirty = false;
        //wrapper.restore();
        wrapper._switchToArmatureMode(false);
        wrapper.restore();
    };

    proto.initShaderCache = function(){};
    proto.setShaderProgram = function(){};
    proto.updateChildPosition = function(dis, bone){
        dis.visit();
        // cc.renderer.pushRenderCommand(dis._renderCmd);
    };

    proto.rendering = function(ctx, scaleX, scaleY){
        var node = this._node;
        var locChildren = node._children;
        var alphaPremultiplied = cc.BlendFunc.ALPHA_PREMULTIPLIED, alphaNonPremultipled = cc.BlendFunc.ALPHA_NON_PREMULTIPLIED;
        for (var i = 0, len = locChildren.length; i< len; i++) {
            var selBone = locChildren[i];
            if (selBone && selBone.getDisplayRenderNode) {
                var selNode = selBone.getDisplayRenderNode();
                if (null === selNode)
                    continue;

                switch (selBone.getDisplayRenderNodeType()) {
                    case ccs.DISPLAY_TYPE_SPRITE:
                        if(selNode instanceof ccs.Skin)
                            this.updateChildPosition(selNode, selBone, alphaPremultiplied, alphaNonPremultipled);
                        break;
                    case ccs.DISPLAY_TYPE_ARMATURE:
                        selNode._renderCmd.rendering(ctx, scaleX, scaleY);
                        break;
                    default:
                        selNode.visit(this);
                        break;
                }
            } else if(selBone instanceof cc.Node) {
                this._visitNormalChild(selBone);
                //selBone.visit(this);
            }
        }
    };

    proto._visitNormalChild = function(childNode){
        if(childNode == null)
            return;

        var cmd = childNode._renderCmd;
        // quick return if not visible
        if (!childNode._visible)
            return;
        cmd._curLevel = this._curLevel + 1;

        //visit for canvas
        var i, children = childNode._children, child;
        cmd._syncStatus(this);
        //because armature use transform, not setTransform
        cmd.transform(null);

        var len = children.length;
        if (len > 0) {
            childNode.sortAllChildren();
            // draw children zOrder < 0
            for (i = 0; i < len; i++) {
                child = children[i];
                if (child._localZOrder < 0)
                    child._renderCmd.visit(cmd);
                else
                    break;
            }
            cc.renderer.pushRenderCommand(cmd);
            for (; i < len; i++)
                children[i]._renderCmd.visit(cmd);
        } else {
            cc.renderer.pushRenderCommand(cmd);
        }
        this._dirtyFlag = 0;
    };

    proto.visit = function(parentCmd){
        var node = this._node;
        // quick return if not visible. children won't be drawn.
        if (!node._visible)
            return;

        this.updateStatus(parentCmd);
        node.sortAllChildren();

        cc.renderer.pushRenderCommand(this._startRenderCmd);
        this.rendering();
        cc.renderer.pushRenderCommand(this._RestoreRenderCmd);

        this._cacheDirty = false;
    };
})();