private void recalcEditorDimensions() {
EditorImpl.MyScrollBar scrollBar = myEditor.getVerticalScrollBar();
int scrollBarHeight = scrollBar.getSize().height;
myEditorScrollbarTop = scrollBar.getDecScrollButtonHeight() /* + 1*/;
int editorScrollbarBottom = scrollBar.getIncScrollButtonHeight();
myEditorTargetHeight = scrollBarHeight - myEditorScrollbarTop - editorScrollbarBottom;
myEditorSourceHeight = myEditor.getPreferredHeight();
}
