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* a simple text-only Tooltip class
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� Z S )�OnHoverTooltipBasez?abstract base class for tooltips, with delayed on-hover display�� c sV t t| �j|� || _d| _| jjd| j�| _| jjd| j �| _
| jjd| j �| _ dS )aq Create a tooltip with a mouse hover delay.
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)r r) r r r r$ w s z OnHoverTooltipBase._hide_eventc C s | j � | jj| j| j�| _dS )z*schedule the future display of the tooltipN)�
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r c s* e Zd ZdZd� fdd� Zdd� Z� ZS )�HovertipzAA tooltip that pops up when a mouse hovers over an anchor widget.�� c s t t| �j||d� || _dS )av Create a text tooltip with a mouse hover delay.
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