Print out available screen info on macos

QuLogic · QuLogic · commit e722c5f73142 · 2024-01-31T20:57:14.000-05:00
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -312,6 +312,9 @@ jobs:
 
       - name: Run pytest
         run: |
+          if [[ "${{ runner.os }}" == 'macOS' ]]; then
+            python -c 'from matplotlib.backends._macosx import print_screen_info; print_screen_info()'
+          fi
           pytest -raR -n auto \
             --timeout=300 --durations=25 \
             --cov-report=xml --cov=lib --log-level=DEBUG --color=yes
diff --git a/src/_macosx.m b/src/_macosx.m
@@ -1796,6 +1796,47 @@ - (void)flagsChanged:(NSEvent *)event
     },
 };
 
+static PyObject*
+print_screen_info(PyObject* self)
+{
+    NSScreen *main = [NSScreen mainScreen];
+    if (main != nil) {
+        NSRect frame = [main frame];
+        NSWindowDepth depth = [main depth];
+        printf("mainScreen: %s (%fx%f)+%f+%f @%ld\n",
+               [[main localizedName] UTF8String],
+               NSWidth(frame), NSHeight(frame), NSMinX(frame), NSMinY(frame),
+               (long)NSBitsPerSampleFromDepth(depth));
+    } else {
+        printf("mainScreen: (unknown)\n");
+    }
+
+    NSScreen *deepest = [NSScreen deepestScreen];
+    if (deepest != nil) {
+        NSRect frame = [deepest frame];
+        NSWindowDepth depth = [deepest depth];
+        printf("deepestScreen: %s (%fx%f)+%f+%f @%ld\n",
+               [[deepest localizedName] UTF8String],
+               NSWidth(frame), NSHeight(frame), NSMinX(frame), NSMinY(frame),
+               (long)NSBitsPerSampleFromDepth(depth));
+    } else {
+        printf("deepestScreen: (unknown)\n");
+    }
+
+    NSArray *screensArray = [NSScreen screens];
+    printf("Available screens: %lu\n", [screensArray count]);
+    [screensArray enumerateObjectsUsingBlock:^(NSScreen* screen, NSUInteger idx, BOOL *stop) {
+        NSRect frame = [screen frame];
+        NSWindowDepth depth = [screen depth];
+        printf("    %lu: %s (%fx%f)+%f+%f @%ld\n",
+               idx, [[screen localizedName] UTF8String],
+               NSWidth(frame), NSHeight(frame), NSMinX(frame), NSMinY(frame),
+               (long)NSBitsPerSampleFromDepth(depth));
+    }];
+
+    Py_RETURN_NONE;
+}
+
 static struct PyModuleDef moduledef = {
     PyModuleDef_HEAD_INIT, "_macosx", "Mac OS X native backend", -1,
     (PyMethodDef[]){
@@ -1823,6 +1864,10 @@ - (void)flagsChanged:(NSEvent *)event
          (PyCFunction)choose_save_file,
          METH_VARARGS,
          "Query the user for a location where to save a file."},
+        {"print_screen_info",
+            (PyCFunction)print_screen_info,
+            METH_NOARGS,
+            "Show information about available screens."},
         {}  /* Sentinel */
     },
 };
