Re: the picture brower works so slowly!

[Houssem BDIOUI]

Nova,

 

You always need to specify whether you're working with Qt3.x or Qt4.0

I have just one remark, you can directly load the image into QPixmap.

Maybe, this will improve a bit the speed! I 'm not sure though.

 

2005/7/26, nova <gxnova@xxxxxxx>:

hello everybody:
               I'm writing a picture browser now.   The course of drawing is that:

->1.get the picture's filepath
->2.constuct QImage image(filepath)
->3.covert the image to QPixmap
->4.draw the pixmap on a widget.

       The brower works well when the picture's size is small.but if the format of the picture is jpg,and it's size is bigger than 1m, the brower works so slowly.
I found that decompressing the jpg coast so much time. can any one telling me a good method for solving this problem?
               thanks a lot!


nova
gxnova@xxxxxxx
2005-07-26