TCPDF writeHTML()

TCPDF writeHTML()

I am working on two column layout input comes from an editor which has
images and text. Images can come as one column or full width. Everything
works fine when I insert images in one column. But when I insert image as
2 column it fits perfectly in the column but the text after that is
somewhat not aligned.
Text covers the after space correctly but when it goes to second column
some space from the top till where the image ends on the first column is
blank and starts after that.
if ($this->myResetColumn) {
$this->resetColumns();
$this->setEqualColumns($this->myCols, $this->myWidth);
$this->setXY($this->GetX(), $this->GetY());
$this->selectColumn();
}
$this->writeHTML($content, true, false, true, false, $align);
Second Question
It there a way, I can make few checks while the writeHTML() function is
executing or I have to change the function itself, which will not be a
good idea to change the source code. For AddPage, I override it, after the
line at the end like this
$this->startPage($orientation, $format, $tocpage);
if (condition) {
// some function call
}
but writeHTML() is a lengthy function to override and it will lose many
options it has.