Make code editor collapsible

Source/PluginEditor.cpp

@@ -11,7 +11,7 @@
 
 //==============================================================================
 OscirenderAudioProcessorEditor::OscirenderAudioProcessorEditor (OscirenderAudioProcessor& p)
-	: AudioProcessorEditor(&p), audioProcessor(p), effects(p), main(p)
+	: AudioProcessorEditor(&p), audioProcessor(p), effects(p), main(p), collapseButton("Collapse", juce::Colours::white, juce::Colours::white, juce::Colours::white)
 {
     // Make sure that before the constructor has finished, you've set the
     // editor's size to whatever you need it to be.
@@ -38,6 +38,25 @@ OscirenderAudioProcessorEditor::OscirenderAudioProcessorEditor (OscirenderAudioP
     a = io.read("*number")        -- read a number
     print(fact(a))
 )LUA");
+
+    addAndMakeVisible(collapseButton);
+	collapseButton.onClick = [this] {
+		if (codeEditor->isVisible()) {
+			codeEditor->setVisible(false);
+            juce::Path path;
+            path.addTriangle(0.0f, 0.5f, 1.0f, 1.0f, 1.0f, 0.0f);
+            collapseButton.setShape(path, false, true, true);
+		} else {
+			codeEditor->setVisible(true);
+            juce::Path path;
+            path.addTriangle(0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f);
+            collapseButton.setShape(path, false, true, true);
+		}
+        resized();
+	};
+	juce::Path path;
+	path.addTriangle(0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f);
+	collapseButton.setShape(path, false, true, true);
 }
 
 OscirenderAudioProcessorEditor::~OscirenderAudioProcessorEditor() {}
@@ -45,17 +64,25 @@ OscirenderAudioProcessorEditor::~OscirenderAudioProcessorEditor() {}
 //==============================================================================
 void OscirenderAudioProcessorEditor::paint (juce::Graphics& g)
 {
-    // (Our component is opaque, so we must completely fill the background with a solid colour)
-    g.fillAll (getLookAndFeel().findColour (juce::ResizableWindow::backgroundColourId));
+    g.fillAll(getLookAndFeel().findColour(juce::ResizableWindow::backgroundColourId));
 
-    g.setColour (juce::Colours::white);
-    g.setFont (15.0f);
+    g.setColour(juce::Colours::white);
+    g.setFont(15.0f);
 }
 
 void OscirenderAudioProcessorEditor::resized() {
-    effects.setBounds(getWidth() / 2, 0, getWidth() / 2, getHeight());
-	main.setBounds(0, 0, getWidth() / 2, getHeight() / 2);
+    auto area = getLocalBounds();
+    auto sections = 2;
     if (codeEditor != nullptr) {
-        codeEditor->setBounds(0, getHeight() / 2, getWidth() / 2, getHeight() / 2);
+		if (codeEditor->isVisible()) {
+            sections++;
+            codeEditor->setBounds(area.removeFromRight(getWidth() / sections));
+		} else {
+			codeEditor->setBounds(0, 0, 0, 0);
+		}
+		collapseButton.setBounds(area.removeFromRight(20));
     }
+	effects.setBounds(area.removeFromRight(getWidth() / sections));
+	main.setBounds(area.removeFromTop(getHeight() / 2));
+    
 }

Source/PluginEditor.h

@@ -35,6 +35,7 @@ private:
     juce::CodeDocument codeDocument;
     juce::LuaTokeniser luaTokeniser;
 	std::unique_ptr<juce::CodeEditorComponent> codeEditor;
+	juce::ShapeButton collapseButton;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (OscirenderAudioProcessorEditor)
 };