paulxstretch/deps/juce/extras/AudioPluginHost/Source/UI/PluginWindow.h

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
End User License Agreement: www.juce.com/juce-6-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#pragma once
#include "../Plugins/IOConfigurationWindow.h"
inline String getFormatSuffix (const AudioProcessor* plugin)
{
const auto format = [plugin]()
{
if (auto* instance = dynamic_cast<const AudioPluginInstance*> (plugin))
return instance->getPluginDescription().pluginFormatName;
return String();
}();
return format.isNotEmpty() ? (" (" + format + ")") : format;
}
class PluginGraph;
/**
A window that shows a log of parameter change messages sent by the plugin.
*/
class PluginDebugWindow : public AudioProcessorEditor,
public AudioProcessorParameter::Listener,
public ListBoxModel,
public AsyncUpdater
{
public:
PluginDebugWindow (AudioProcessor& proc)
: AudioProcessorEditor (proc), audioProc (proc)
{
setSize (500, 200);
addAndMakeVisible (list);
for (auto* p : audioProc.getParameters())
p->addListener (this);
log.add ("Parameter debug log started");
}
void parameterValueChanged (int parameterIndex, float newValue) override
{
auto* param = audioProc.getParameters()[parameterIndex];
auto value = param->getCurrentValueAsText().quoted() + " (" + String (newValue, 4) + ")";
appendToLog ("parameter change", *param, value);
}
void parameterGestureChanged (int parameterIndex, bool gestureIsStarting) override
{
auto* param = audioProc.getParameters()[parameterIndex];
appendToLog ("gesture", *param, gestureIsStarting ? "start" : "end");
}
private:
void appendToLog (StringRef action, AudioProcessorParameter& param, StringRef value)
{
String entry (action + " " + param.getName (30).quoted() + " [" + String (param.getParameterIndex()) + "]: " + value);
{
ScopedLock lock (pendingLogLock);
pendingLogEntries.add (entry);
}
triggerAsyncUpdate();
}
void resized() override
{
list.setBounds(getLocalBounds());
}
int getNumRows() override
{
return log.size();
}
void paintListBoxItem (int rowNumber, Graphics& g, int width, int height, bool) override
{
g.setColour (getLookAndFeel().findColour (TextEditor::textColourId));
if (isPositiveAndBelow (rowNumber, log.size()))
g.drawText (log[rowNumber], Rectangle<int> { 0, 0, width, height }, Justification::left, true);
}
void handleAsyncUpdate() override
{
if (log.size() > logSizeTrimThreshold)
log.removeRange (0, log.size() - maxLogSize);
{
ScopedLock lock (pendingLogLock);
log.addArray (pendingLogEntries);
pendingLogEntries.clear();
}
list.updateContent();
list.scrollToEnsureRowIsOnscreen (log.size() - 1);
}
constexpr static const int maxLogSize = 300;
constexpr static const int logSizeTrimThreshold = 400;
ListBox list { "Log", this };
StringArray log;
StringArray pendingLogEntries;
CriticalSection pendingLogLock;
AudioProcessor& audioProc;
};
//==============================================================================
/**
A desktop window containing a plugin's GUI.
*/
class PluginWindow : public DocumentWindow
{
public:
enum class Type
{
normal = 0,
generic,
programs,
audioIO,
debug,
numTypes
};
PluginWindow (AudioProcessorGraph::Node* n, Type t, OwnedArray<PluginWindow>& windowList)
: DocumentWindow (n->getProcessor()->getName() + getFormatSuffix (n->getProcessor()),
LookAndFeel::getDefaultLookAndFeel().findColour (ResizableWindow::backgroundColourId),
DocumentWindow::minimiseButton | DocumentWindow::closeButton),
activeWindowList (windowList),
node (n), type (t)
{
setSize (400, 300);
if (auto* ui = createProcessorEditor (*node->getProcessor(), type))
{
setContentOwned (ui, true);
setResizable (ui->isResizable(), false);
}
#if JUCE_IOS || JUCE_ANDROID
auto screenBounds = Desktop::getInstance().getDisplays().getTotalBounds (true).toFloat();
auto scaleFactor = jmin ((screenBounds.getWidth() - 50) / getWidth(), (screenBounds.getHeight() - 50) / getHeight());
if (scaleFactor < 1.0f)
setSize ((int) (getWidth() * scaleFactor), (int) (getHeight() * scaleFactor));
setTopLeftPosition (20, 20);
#else
setTopLeftPosition (node->properties.getWithDefault (getLastXProp (type), Random::getSystemRandom().nextInt (500)),
node->properties.getWithDefault (getLastYProp (type), Random::getSystemRandom().nextInt (500)));
#endif
node->properties.set (getOpenProp (type), true);
setVisible (true);
}
~PluginWindow() override
{
clearContentComponent();
}
void moved() override
{
node->properties.set (getLastXProp (type), getX());
node->properties.set (getLastYProp (type), getY());
}
void closeButtonPressed() override
{
node->properties.set (getOpenProp (type), false);
activeWindowList.removeObject (this);
}
static String getLastXProp (Type type) { return "uiLastX_" + getTypeName (type); }
static String getLastYProp (Type type) { return "uiLastY_" + getTypeName (type); }
static String getOpenProp (Type type) { return "uiopen_" + getTypeName (type); }
OwnedArray<PluginWindow>& activeWindowList;
const AudioProcessorGraph::Node::Ptr node;
const Type type;
BorderSize<int> getBorderThickness() override
{
#if JUCE_IOS || JUCE_ANDROID
const int border = 10;
return { border, border, border, border };
#else
return DocumentWindow::getBorderThickness();
#endif
}
private:
float getDesktopScaleFactor() const override { return 1.0f; }
static AudioProcessorEditor* createProcessorEditor (AudioProcessor& processor,
PluginWindow::Type type)
{
if (type == PluginWindow::Type::normal)
{
if (processor.hasEditor())
if (auto* ui = processor.createEditorIfNeeded())
return ui;
type = PluginWindow::Type::generic;
}
if (type == PluginWindow::Type::generic) return new GenericAudioProcessorEditor (processor);
if (type == PluginWindow::Type::programs) return new ProgramAudioProcessorEditor (processor);
if (type == PluginWindow::Type::audioIO) return new IOConfigurationWindow (processor);
if (type == PluginWindow::Type::debug) return new PluginDebugWindow (processor);
jassertfalse;
return {};
}
static String getTypeName (Type type)
{
switch (type)
{
case Type::normal: return "Normal";
case Type::generic: return "Generic";
case Type::programs: return "Programs";
case Type::audioIO: return "IO";
case Type::debug: return "Debug";
case Type::numTypes:
default: return {};
}
}
//==============================================================================
struct ProgramAudioProcessorEditor : public AudioProcessorEditor
{
ProgramAudioProcessorEditor (AudioProcessor& p) : AudioProcessorEditor (p)
{
setOpaque (true);
addAndMakeVisible (panel);
Array<PropertyComponent*> programs;
auto numPrograms = p.getNumPrograms();
int totalHeight = 0;
for (int i = 0; i < numPrograms; ++i)
{
auto name = p.getProgramName (i).trim();
if (name.isEmpty())
name = "Unnamed";
auto pc = new PropertyComp (name, p);
programs.add (pc);
totalHeight += pc->getPreferredHeight();
}
panel.addProperties (programs);
setSize (400, jlimit (25, 400, totalHeight));
}
void paint (Graphics& g) override
{
g.fillAll (Colours::grey);
}
void resized() override
{
panel.setBounds (getLocalBounds());
}
private:
struct PropertyComp : public PropertyComponent,
private AudioProcessorListener
{
PropertyComp (const String& name, AudioProcessor& p) : PropertyComponent (name), owner (p)
{
owner.addListener (this);
}
~PropertyComp() override
{
owner.removeListener (this);
}
void refresh() override {}
void audioProcessorChanged (AudioProcessor*, const ChangeDetails&) override {}
void audioProcessorParameterChanged (AudioProcessor*, int, float) override {}
AudioProcessor& owner;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PropertyComp)
};
PropertyPanel panel;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ProgramAudioProcessorEditor)
};
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PluginWindow)
};