diff options
Diffstat (limited to 'nuttx/graphics/nxtk/nxtk_internal.h')
| -rw-r--r-- | nuttx/graphics/nxtk/nxtk_internal.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/nuttx/graphics/nxtk/nxtk_internal.h b/nuttx/graphics/nxtk/nxtk_internal.h index b5df23a80..2f9878a99 100644 --- a/nuttx/graphics/nxtk/nxtk_internal.h +++ b/nuttx/graphics/nxtk/nxtk_internal.h @@ -121,6 +121,58 @@ extern FAR const struct nx_callback_s g_nxtkcb; EXTERN void nxtk_setsubwindows(FAR struct nxtk_framedwindow_s *fwnd); +/**************************************************************************** + * Name: nxtk_subwindowclip + * + * Description: + * Clip the src rectangle so that it lies within the sub-window bounds + * then move the rectangle to that it is relative to the containing + * window. + * + * Input parameters: + * fwnd - The framed window to be used + * dest - The locaton to put the result + * src - The src rectangle in relative sub-window coordinates + * bounds - The subwindow bounds in absolute screen coordinates. + * + * Returned value: + * None + * + ****************************************************************************/ + +EXTERN void nxtk_subwindowclip(FAR struct nxtk_framedwindow_s *fwnd, + FAR struct nxgl_rect_s *dest, + FAR const struct nxgl_rect_s *src, + FAR const struct nxgl_rect_s *bounds); + +/**************************************************************************** + * Name: nxtk_subwindowmove + * + * Description: + * Perform common clipping operations in preparatons for calling nx_move() + * + * Input Parameters: + * fwnd - The framed window within which the move is to be done. + * This must have been previously created by nxtk_openwindow(). + * destrect - The loccation to receive the clipped rectangle relative + * to containing window + * destoffset - The location to received the clipped offset. + * srcrect - Describes the rectangular region relative to the client + * sub-window to move relative to the sub-window + * srcoffset - The offset to move the region + * bounds - The subwindow bounds in absolute screen coordinates. + * + * Return: + * OK on success; ERROR on failure with errno set appropriately + * + ****************************************************************************/ + +EXTERN void nxtk_subwindowmove(FAR struct nxtk_framedwindow_s *fwnd, + FAR struct nxgl_rect_s *destrect, + FAR struct nxgl_point_s *destoffset, + FAR const struct nxgl_rect_s *srcrect, + FAR const struct nxgl_point_s *srcoffset, + FAR const struct nxgl_rect_s *bounds); #undef EXTERN #if defined(__cplusplus) } |