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Better documentation of content_redraw

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svn path=/trunk/netsurf/; revision=11645
This commit is contained in:
Michael Drake 2011-02-11 10:55:46 +00:00
parent 18a4d2deec
commit 81f6f2552c
1 changed files with 13 additions and 2 deletions
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15
content/content.c
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@ -877,8 +877,8 @@ void content_request_redraw(struct hlcache_handle *h,
* \param h content
* \param x coordinate for top-left of redraw
* \param y coordinate for top-left of redraw
* \param width available width (not used for HTML redraw)
* \param height available height (not used for HTML redraw)
* \param width render width (not used for HTML redraw)
* \param height render height (not used for HTML redraw)
* \param clip_x0 clip rectangle left
* \param clip_y0 clip rectangle top
* \param clip_x1 clip rectangle right
@ -892,6 +892,17 @@ void content_request_redraw(struct hlcache_handle *h,
* The top left corner of the clip rectangle is (clip_x0, clip_y0) and
* the bottom right corner of the clip rectangle is (clip_x1, clip_y1).
* Units for x, y and clip_* are pixels.
*
* Content scaling is handled differently for contents with and without
* intrinsic dimensions.
*
* Content without intrinsic dimensions, e.g. HTML:
* The scale value is applied (the content having been reformatted
* appropriately beforehand). The width and height are not used.
*
* Content with intrinsic dimensions, e.g. images:
* The scale value is not used. The content is scaled from its own
* intrinsic dimensions to the passed render width and height.
*/
bool content_redraw(hlcache_handle *h, int x, int y,