用DELPHI模拟LED屏下的那种文字特效怎么做啊？

如：



左移入

右移入

上移入

下移入

左展入

右展入

上展入

下展入

横向展开 -DELPHI simulation of LED screen with the kind of text effects, under how to do ah? Such as: immigration, on the left moved to the right shifted into the right under the Fair moved to the left into the Exhibition Exhibition Exhibition entry into the next horizontal start