VG3_correct_imageposition()
Correct the x-/y-position of an image, which size was changed, to keep the center unchanged.SYNTAX
struct vg3_rect
VG3_correct_imageposition(struct vg3_rect *orect,
int width,
int height)
FUNCTION PARAMETERS
| orect | Actual rectangle of the position of the image |
| width | New width of the image |
| height | New height of the image |
RETURN VALUE
Returns the new rectangle of the position of the image.
DESCRIPTION
When an image is drawn onto the window,
the target coordinate will be used with the center of the image.
Changes the image its size, its rectangle position must be corrected,
elements w and h get the new size,
elements x and y get the new position
to calculate the same coordinate of the image on the destination.
With this function a fully corrected rectangle will be returned.