Method and apparatus for printing transparent graphics
First Claim
Patent Images
1. A method for processing a document page containing transparent graphics objects for printing, said method comprising:
- creating a transparency list containing a reference to each of the transparent graphics objects of said document page,wherein a transparent graphics object is an object, which does not obscure any other object that overlaps the object;
determining whether said transparency list is empty;
converting objects referenced in said transparency list into bitmaps for printing upon said determining finding said transparency list is not empty; and
printing said document page, without performing said converting upon said determining finding said transparency list is empty.
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Abstract
A method for printing documents containing transparent graphics objects includes creating a transparency list containing the transparent graphics objects of said document, and printing only objects contained in said transparency list as bitmaps.
23 Citations
20 Claims
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1. A method for processing a document page containing transparent graphics objects for printing, said method comprising:
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creating a transparency list containing a reference to each of the transparent graphics objects of said document page, wherein a transparent graphics object is an object, which does not obscure any other object that overlaps the object; determining whether said transparency list is empty; converting objects referenced in said transparency list into bitmaps for printing upon said determining finding said transparency list is not empty; and printing said document page, without performing said converting upon said determining finding said transparency list is empty. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a processor; and a memory coupled to said processor, and storing therein computer instructions for a method for processing a document page containing transparent graphics objects for printing wherein upon execution of said computer instructions on said processor, said method comprises; creating a transparency list containing a reference to each of the transparent graphics objects of said document page in said memory, wherein a transparent graphics object is an object, which does not obscure any other object that overlaps the object; determining whether said transparency list is empty; converting objects referenced in said transparency list into bitmaps for printing upon said determining finding said transparency list is not empty; and printing said document page, without performing said converting upon said determining finding said transparency list is empty. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer program product comprising a tangible medium having embedded therein computer readable program code for a method for processing a document page containing transparent graphics objects for printing, said method comprising:
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creating a transparency list containing a reference to each of the transparent graphics objects of said document page, wherein a transparent graphics object is an object, which does not obscure any other object that overlaps the object; determining whether said transparency list is empty; converting objects in referenced in said transparency list into bitmaps for printing upon said determining finding said transparency list is not empty; and printing said document page, without performing said converting upon said determining finding said transparency list is empty. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for processing a document page containing transparent graphics objects for printing, said method comprising:
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determining whether at least a part of a non-transparent object including a plurality of text words overlaps a transparent graphics object referenced in a transparency list wherein said transparent graphics object is an object, which does not obscure any other object that overlaps the object; and adding said entire non-transparent object to said transparency list when either of (a) all of said plurality of text words of said non-transparent object overlaps said transparent graphics object; and
(b) only said at least a part of said plurality of text words of said non-transparent object overlaps said transparent graphics object is true. - View Dependent Claims (20)
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Specification