Fix an edge-case if the last stored editor window size is zero

examples/audio plugin demo/Source/PluginProcessor.cpp

@@ -344,8 +344,8 @@ void JuceDemoPluginAudioProcessor::setStateInformation (const void* data, int si
         if (xmlState->hasTagName ("MYPLUGINSETTINGS"))
         {
             // ok, now pull out our last window size..
-            lastUIWidth  = xmlState->getIntAttribute ("uiWidth", lastUIWidth);
-            lastUIHeight = xmlState->getIntAttribute ("uiHeight", lastUIHeight);
+            lastUIWidth  = jmax (xmlState->getIntAttribute ("uiWidth", lastUIWidth), 400);
+            lastUIHeight = jmax (xmlState->getIntAttribute ("uiHeight", lastUIHeight), 200);
 
             // Now reload our parameters..
             for (int i = 0; i < getNumParameters(); ++i)

modules/juce_audio_processors/processors/juce_AudioProcessorEditor.cpp

@@ -65,14 +65,14 @@ void AudioProcessorEditor::setResizable (const bool shouldBeResizable)
     else
     {
         setConstrainer (&defaultConstrainer);
+        resizableCorner = nullptr;
 
         if (getWidth() > 0 && getHeight() > 0)
+        {
             defaultConstrainer.setSizeLimits (getWidth(), getHeight(), getWidth(), getHeight());
-
-        resizableCorner = nullptr;
+            resized();
+        }
     }
-
-    resized();
 }
 
 bool AudioProcessorEditor::isResizable() const noexcept