Allow setting image clims in Qt options editor.

anntzer · anntzer · commit 21174b57cb7b · 2016-07-09T19:32:37.000-07:00
Currently, `(cmin, cmax)` is swapped if `cmin &gt; cmax` because it's not
easy to impose the constraint using formlayout.
diff --git a/lib/matplotlib/backends/qt_editor/figureoptions.py b/lib/matplotlib/backends/qt_editor/figureoptions.py
@@ -139,10 +139,12 @@ def prepare_data(d, init):
         cmap = image.get_cmap()
         if cmap not in cm.cmap_d.values():
             cmaps = [(cmap, cmap.name)] + cmaps
+        low, high = image.get_clim()
         imagedata = [
             ('Label', label),
-            ('Colormap', [cmap.name] + cmaps)
-        ]
+            ('Colormap', [cmap.name] + cmaps),
+            ('Min. value', low),
+            ('Max. value', high)]
         images.append([imagedata, label, ""])
     # Is there an image displayed?
     has_image = bool(images)
@@ -203,9 +205,10 @@ def apply_callback(data):
         # Set / Images
         for index, image_settings in enumerate(images):
             image = imagedict[imagelabels[index]]
-            label, cmap = image_settings
+            label, cmap, low, high = image_settings
             image.set_label(label)
             image.set_cmap(cm.get_cmap(cmap))
+            image.set_clim(*sorted([low, high]))
 
         # re-generate legend, if checkbox is checked
         if generate_legend:
