Hello JUCE Team,
We’re having strange resizing issues in Ableton Live 10 VST3 on Windows using a Hi-DPI machine. Everything works as expected when calling setSize() using a standard TextButton but when the same function is called from a popup menu, the plugin host window resizes incorrectly. Please find attached a gif demonstrating the issue with a basic JUCE Audio Plugin project built from the latest master. It uses the OpenGL renderer but the issue is still present with the default rendering pipeline. Thanks for your help!
Here’s the code from the demo:
PluginEditor.h
/*
==============================================================================
This file was auto-generated!
It contains the basic framework code for a JUCE plugin editor.
==============================================================================
*/
#pragma once
#include "../JuceLibraryCode/JuceHeader.h"
#include "PluginProcessor.h"
//==============================================================================
/**
*/
class TestPluginAudioProcessorEditor : public AudioProcessorEditor,
private OpenGLRenderer
{
public:
TestPluginAudioProcessorEditor (TestPluginAudioProcessor&);
~TestPluginAudioProcessorEditor();
//==============================================================================
void paint (Graphics&) override;
void resized() override;
void newOpenGLContextCreated() override;
void renderOpenGL() override;
void openGLContextClosing() override;
private:
OpenGLContext m_openGLContext;
TextButton popupButton{ "Change Window Size Via Popup" };
TextButton randomButton{ "Change Window Size Randomly" };
Component m_all;
void makePopup();
static void popupMenuFishedCallback(int v, TestPluginAudioProcessorEditor* editor)
{
editor->setUIScale(v);
}
void setUIScale(int v)
{
setSize(400 * v, 300 * v);
}
// This reference is provided as a quick way for your editor to
// access the processor object that created it.
TestPluginAudioProcessor& processor;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TestPluginAudioProcessorEditor)
};
PluginEditor.cpp
/*
==============================================================================
This file was auto-generated!
It contains the basic framework code for a JUCE plugin editor.
==============================================================================
*/
#include "PluginProcessor.h"
#include "PluginEditor.h"
//==============================================================================
TestPluginAudioProcessorEditor::TestPluginAudioProcessorEditor (TestPluginAudioProcessor& p)
: AudioProcessorEditor (&p), processor (p)
{
setResizable(false, false);
m_openGLContext.setOpenGLVersionRequired(OpenGLContext::OpenGLVersion::openGL3_2);
m_openGLContext.setRenderer(this);
m_openGLContext.setMultisamplingEnabled(true);
OpenGLPixelFormat format;
format.multisamplingLevel = 8;
m_openGLContext.setPixelFormat(format);
// Attach OpenGL and start graphics timer
m_openGLContext.attachTo(*this);
// Add popup button
addAndMakeVisible (popupButton);
popupButton.onClick = [this] { makePopup(); };
popupButton.setBounds(20, 20, 200, 40);
m_all.addAndMakeVisible(&popupButton);
// add random button
addAndMakeVisible(randomButton);
randomButton.onClick = [this] { setUIScale(rand() % 3 + 1); };
randomButton.setBounds(20, 80, 200, 40);
m_all.addAndMakeVisible(&randomButton);
m_all.setBounds(0, 0, 400, 300);
addAndMakeVisible(&m_all);
setSize (400, 300);
}
TestPluginAudioProcessorEditor::~TestPluginAudioProcessorEditor()
{
m_openGLContext.detach();
}
//==============================================================================
void TestPluginAudioProcessorEditor::paint (Graphics& g)
{
// (Our component is opaque, so we must completely fill the background with a solid colour)
g.fillAll (getLookAndFeel().findColour (ResizableWindow::backgroundColourId));
}
void TestPluginAudioProcessorEditor::resized()
{
auto r = getLocalBounds();
float scale = float(r.getWidth()) / 400.f;
auto transform = AffineTransform().scale(scale);
m_all.setTransform(transform);
}
void TestPluginAudioProcessorEditor::newOpenGLContextCreated() {}
void TestPluginAudioProcessorEditor::renderOpenGL() {}
void TestPluginAudioProcessorEditor::openGLContextClosing() {}
void TestPluginAudioProcessorEditor::makePopup()
{
PopupMenu popup;
popup.addItem(1, "Small", true, false);
popup.addItem(2, "Medium", true, false);
popup.addItem(3, "Large", true, false);
popup.showMenuAsync(PopupMenu::Options()
.withTargetComponent(&popupButton)
.withItemThatMustBeVisible(0)
.withMaximumNumColumns(1)
.withStandardItemHeight(22.f),
ModalCallbackFunction::forComponent(popupMenuFishedCallback, this));
}