ListView experiment and other bits.

Author: jrlanglois

demo/SquarePineDemo.jucer

@@ -96,6 +96,7 @@
               file="source/demos/EffectChainDemo.h"/>
         <FILE id="brHreQ" name="iCUESDKDemo.h" compile="0" resource="0" file="source/demos/iCUESDKDemo.h"/>
         <FILE id="vSHEQC" name="ImageDemo.h" compile="0" resource="0" file="source/demos/ImageDemo.h"/>
+        <FILE id="Hzxday" name="ListViewDemo.h" compile="0" resource="0" file="source/demos/ListViewDemo.h"/>
         <FILE id="uzQ1sq" name="MarkdownDemo.h" compile="0" resource="0" file="source/demos/MarkdownDemo.h"/>
         <FILE id="S1SGkR" name="MediaDeviceListerDemo.h" compile="0" resource="0"
               file="source/demos/MediaDeviceListerDemo.h"/>

demo/source/MainModule.h

@@ -27,6 +27,7 @@
 #include "demos/EasingsDemo.h"
 #include "demos/EffectChainDemo.h"
 #include "demos/ImageDemo.h"
+#include "demos/ListViewDemo.h"
 #include "demos/MarkdownDemo.h"
 #include "demos/MediaDeviceListerDemo.h"
 #include "demos/OpenGLDetailsDemo.h"

demo/source/demos/ListViewDemo.h

@@ -0,0 +1,64 @@
+/** A general demonstration of a highly flexible list view system. */
+class ListViewDemo final : public DemoBase
+{
+public:
+    ListViewDemo (SharedObjects& sharedObjs) :
+        DemoBase (sharedObjs, NEEDS_TRANS ("ListView"))
+    {
+        scrollView = makeListView();
+        scrollView->setModel (&demoListModel);
+        addAndMakeVisible (scrollView.get());
+
+        updateWithNewTranslations();
+    }
+
+    ~ListViewDemo() override
+    {
+        scrollView->setModel (nullptr);
+    }
+
+    //==============================================================================
+    void updateWithNewTranslations() override
+    {
+        SQUAREPINE_CRASH_TRACER
+        repaint();
+    }
+
+    void resized() override
+    {
+        auto b = getLocalBounds().reduced (margin);
+
+        {
+            auto top = b.removeFromTop (margin * 4);
+        }
+
+        b.removeFromTop (margin);
+        scrollView->setBounds (b);
+    }
+
+private:
+    //===============================4===============================================
+    enum { margin = 8 };
+
+    class DemoListModel final : public ListModel
+    {
+    public:
+        DemoListModel() = default;
+
+        int getNumItems() const override { return 1000; }
+
+        Component* getItemComponent (int index) override
+        {
+            auto* label = new Label();
+            label->setColour (Label::ColourIds::backgroundColourId, Colours::red);
+            label->setText ("Item " + String(index), dontSendNotification);
+            return label;
+        }
+    };
+
+    DemoListModel demoListModel;
+    std::unique_ptr<ScrollView> scrollView;
+
+    //==============================================================================
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ListViewDemo)
+};

demo/source/main/MainComponent.cpp

@@ -25,8 +25,9 @@ MainComponent::MainComponent (SharedObjects& sharedObjs) :
         demos.add (comp);
     };
 
+    addDemo (new ListViewDemo (sharedObjs));
     addDemo (new EffectChainDemo (sharedObjs));
-    addDemo (new MarkdownDemo (sharedObjs));
+    // addDemo (new MarkdownDemo (sharedObjs));
     addDemo (new CRCDemo (sharedObjs));
     addDemo (new EaseListComponent (sharedObjs));
     addDemo (new ImageDemo (sharedObjs));

modules/squarepine_audio/core/squarepine_AudioUtilities.h

@@ -329,16 +329,12 @@ template<typename Type>
 [[nodiscard]] inline double pitchRatioToSemitones (Type pitchRatio) noexcept      { return pitchRatioToSemitones (static_cast<double> (pitchRatio)); }
 
 //============================================================================
-/** @returns a MIDI note converted from a frequency (in Hz). */
+/** @returns a MIDI note converted from a frequency (in Hz).
+
+    @see juce::MidiMessage::getMidiNoteInHertz for the other way around.
+*/
 [[nodiscard]] inline int frequencyToMIDINote (double frequencyHz) noexcept
 {
     const auto pitchRatio = std::max (0.0, frequencyHz / 440.0);
     return roundToInt (69.0 + pitchRatioToSemitones (pitchRatio));
 }
-
-/** @returns a frequency (in Hz) converted from a MIDI note. */
-[[nodiscard]] inline double midiNoteToFrequency (int midiNoteNumber) noexcept
-{
-    const auto semitones = std::max (0, midiNoteNumber);
-    return 440.0 * semitonesToPitchRatio (static_cast<double> (semitones) - 69.0);
-}

modules/squarepine_audio/music/squarepine_Pitch.h

@@ -28,7 +28,7 @@ class Pitch final
 
     //==============================================================================
     /** Creates a pitch from a given MIDI note number e.g. 69. */
-    static Pitch fromMIDINote (int midiNote) noexcept       { return midiNoteToFrequency (midiNote); }
+    static Pitch fromMIDINote (int midiNote) noexcept       { return MidiMessage::getMidiNoteInHertz (midiNote); }
 
     /** Creates a pitch from a given note name e.g. A#3.
 

modules/squarepine_cryptography/rng/squarepine_Xorshift.h

@@ -73,7 +73,7 @@ class Xorshift64 final
 
     //==============================================================================
     /** */
-    void setAlgorithm (Algorithm newAlgorithmToChoose);
+    void setAlgorithm (Algorithm);
     /** */
     [[nodiscard]] Algorithm getAlgorithm() const noexcept { return algorithm; }