| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of times of checking duplicate of graphics with each other and to accelerate partial bit map copy processing when executing partial bit map copy of a graphic drawn on a layer to another layer. <P>SOLUTION: A graphic system includes a plurality of layers for storing graphics drawn by an application, display means for superimposing and displaying drawn contents stored in the layers; and drawn content transfer means for transferring the drawn contents between the plurality of layers. When transferring the drawn contents, by dividing the layer into a plurality of display regions depending on the drawn contents to the layer and grouping the graphics for each display region, the number of times of checking duplicate regions is reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
