Exemple #1
0
  public void visit(GL10 gl) {
    // quick return if not visible
    if (!visible_) return;

    gl.glPushMatrix();

    if (grid_ != null && grid_.isActive()) {
      grid_.beforeDraw(gl);
      transformAncestors(gl);
    }

    transform(gl);

    if (children_ != null) {
      for (int i = 0; i < children_.size(); ++i) {
        child = children_.get(i);
        if (child.zOrder_ < 0) {
          child.visit(gl);
        } else break;
      }
    }

    draw(gl);

    if (children_ != null) {
      for (int i = 0; i < children_.size(); ++i) {
        child = children_.get(i);
        if (child.zOrder_ >= 0) {
          child.visit(gl);
        }
      }
    }

    if (grid_ != null && grid_.isActive()) {
      grid_.afterDraw(gl, this);
    }

    gl.glPopMatrix();
  }
Exemple #2
0
  /**
   * performs OpenGL view-matrix transformation based on position, scale, rotation and other
   * attributes.
   */
  public void transform(GL10 gl) {
    // transformations

    if (ccConfig.CC_NODE_TRANSFORM_USING_AFFINE_MATRIX) {
      // BEGIN alternative -- using cached transform
      //
      if (isTransformGLDirty_) {
        CGAffineTransform t = nodeToParentTransform();
        CGAffineTransform.CGAffineToGL(t, transformGL_);
        isTransformGLDirty_ = false;
      }

      // gl.glMultMatrixf(transformGL_, transformGL_.length);
      gl.glMultMatrixf(transformGL_, 0);

      if (vertexZ_ != 0) gl.glTranslatef(0, 0, vertexZ_);

      // XXX: Expensive calls. Camera should be integrated into the cached affine matrix
      if (camera_ != null && !(grid_ != null && grid_.isActive())) {
        boolean translate = (anchorPointInPixels_.x != 0.0f || anchorPointInPixels_.y != 0.0f);

        if (translate)
          gl.glTranslatef(
              RENDER_IN_SUBPIXEL(anchorPointInPixels_.x),
              RENDER_IN_SUBPIXEL(anchorPointInPixels_.y),
              0);

        camera_.locate(gl);

        if (translate)
          gl.glTranslatef(
              RENDER_IN_SUBPIXEL(-anchorPointInPixels_.x),
              RENDER_IN_SUBPIXEL(-anchorPointInPixels_.y),
              0);
      }

      // END alternative

    } else {
      // BEGIN original implementation
      //
      // translate
      if (isRelativeAnchorPoint_ && (anchorPointInPixels_.x != 0 || anchorPointInPixels_.y != 0))
        gl.glTranslatef(
            RENDER_IN_SUBPIXEL(-anchorPointInPixels_.x),
            RENDER_IN_SUBPIXEL(-anchorPointInPixels_.y),
            0);

      if (anchorPointInPixels_.x != 0 || anchorPointInPixels_.y != 0)
        gl.glTranslatef(
            RENDER_IN_SUBPIXEL(position_.x + anchorPointInPixels_.x),
            RENDER_IN_SUBPIXEL(position_.y + anchorPointInPixels_.y),
            vertexZ_);
      else if (position_.x != 0 || position_.y != 0 || vertexZ_ != 0)
        gl.glTranslatef(RENDER_IN_SUBPIXEL(position_.x), RENDER_IN_SUBPIXEL(position_.y), vertexZ_);

      // rotate
      if (rotation_ != 0.0f) gl.glRotatef(-rotation_, 0.0f, 0.0f, 1.0f);

      // scale
      if (scaleX_ != 1.0f || scaleY_ != 1.0f) gl.glScalef(scaleX_, scaleY_, 1.0f);

      if (camera_ != null && !(grid_ != null && grid_.isActive())) camera_.locate(gl);

      // restore and re-position point
      if (anchorPointInPixels_.x != 0.0f || anchorPointInPixels_.y != 0.0f)
        gl.glTranslatef(
            RENDER_IN_SUBPIXEL(-anchorPointInPixels_.x),
            RENDER_IN_SUBPIXEL(-anchorPointInPixels_.y),
            0);

      //
      // END original implementation
    }
  }