/** Creates a new tool tip. */
protected void init() {
toolTipConfig = new ToolTipConfig();
lastActive = new Date();
monitorWindowResize = true;
anchorEl = XElement.as(DOM.createDiv());
appearance.applyAnchorStyle(anchorEl);
getElement().appendChild(anchorEl);
}
private Point getTargetXY(int targetCounter) {
if (toolTipConfig.getAnchor() != null) {
targetCounter++;
int[] offsets = getOffsets();
Point xy =
(toolTipConfig.isAnchorToTarget() && !toolTipConfig.isTrackMouse())
? getElement().getAlignToXY(target.getElement(), getAnchorAlign(), null)
: targetXY;
int dw = XDOM.getViewWidth(false) - 5;
int dh = XDOM.getViewHeight(false) - 5;
int scrollX = XDOM.getBodyScrollLeft() + 5;
int scrollY = XDOM.getBodyScrollTop() + 5;
int[] axy = new int[] {xy.getX() + offsets[0], xy.getY() + offsets[1]};
Size sz = getElement().getSize();
Region r = XElement.as(target.getElement()).getRegion();
appearance.removeAnchorStyle(anchorEl);
// if we are not inside valid ranges we try to switch the anchor
if (!((toolTipConfig.getAnchor() == Side.TOP
&& (sz.getHeight() + offsets[1] + scrollY < dh - r.getBottom()))
|| (toolTipConfig.getAnchor() == Side.RIGHT
&& (sz.getWidth() + offsets[0] + scrollX < r.getLeft()))
|| (toolTipConfig.getAnchor() == Side.BOTTOM
&& (sz.getHeight() + offsets[1] + scrollY < r.getTop()))
|| (toolTipConfig.getAnchor() == Side.LEFT
&& (sz.getWidth() + offsets[0] + scrollX < dw - r.getRight())))
&& targetCounter < 4) {
if (sz.getWidth() + offsets[0] + scrollX < dw - r.getRight()) {
toolTipConfig.setAnchor(Side.LEFT);
return getTargetXY(targetCounter);
}
if (sz.getWidth() + offsets[0] + scrollX < r.getLeft()) {
toolTipConfig.setAnchor(Side.RIGHT);
return getTargetXY(targetCounter);
}
if (sz.getHeight() + offsets[1] + scrollY < dh - r.getBottom()) {
toolTipConfig.setAnchor(Side.TOP);
return getTargetXY(targetCounter);
}
if (sz.getHeight() + offsets[1] + scrollY < r.getTop()) {
toolTipConfig.setAnchor(Side.BOTTOM);
return getTargetXY(targetCounter);
}
}
appearance.applyAnchorDirectionStyle(anchorEl, toolTipConfig.getAnchor());
targetCounter = 0;
return new Point(axy[0], axy[1]);
} else {
int x = targetXY.getX();
int y = targetXY.getY();
int[] mouseOffset = toolTipConfig.getMouseOffset();
if (mouseOffset != null) {
x += mouseOffset[0];
y += mouseOffset[1];
}
return new Point(x, y);
}
}