3 Commits

Author	SHA1	Message	Date
Ell	26b978d2a8	app: avoid expensive rotated scale calculation when scale_x == scale_y ... Ditto for the rulers' resolution calculation.	2016-08-09 22:28:21 +00:00
Ell	5bdb20c839	app: make rulers rotation aware ... Place the rulers' origin at the top-left corner of the canvas (screen space) bounding box, and set their scale to the image- space scale along the screen-space horizontal/vertical directions (in other words, measuring a distance using the rulers should give the same results as the measure tool; note that rotation comes into play here only when the horizontal and vertical image or screen resolutions are different, since otherwise the scale is direction invariant.) Make scrollbar step match ruler step under the new behavior.	2016-08-09 21:31:07 +00:00
Michael Natterer	2f26016a47	app: move the code to update scrollbars and rulers to their own files ... so they are gone from the "scale" and "scroll" namespaces because they belong to neither and both. And because the files are way too large.	2016-01-05 18:05:38 +01:00