I believe the inconsistency noticed above to be fixed with commit a4866ff.

I propose a fix for the remaining issue, to remove the old-style aspect of class Fl_Shared_Image
in branch 1.4 (see attached shared_image_patch.txt) :

The fix modifies member function Fl_Shared_Image::get(const char *name, int W, int H).

Test program test/pixmap_browser.cxx is slightly modified to exercize the fix: a small
copy of the main image is added to the GUI. That makes two Fl_Shared_Image objects
that have identical underlying image (image_ member), identical data_w() and data_h()
but differ by their drawing size (w() and h()). The image file is read only once and the
image cache is computed only once with the full size of the image file. That cached form of the
image is used by two scale-and-draw operations when drawing the window.

Opinions?

shared_image_patch.txt

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