private void adjustWidth() {
		int newWidth = leftMargin;
		int numCols = getColumnCount();
		for (int i = 0; i < numCols; i++) {
			newWidth += columnWidths[i];
		}
		this.width = newWidth;
	}
Adjusts the total width of the component field area
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeViewerModel.java