git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/extras/Projucer/Source/Utility/UI/jucer_JucerTreeViewBase.h

@@ -0,0 +1,249 @@
+/*
+  ==============================================================================
+
+   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
+
+class ProjectContentComponent;
+class Project;
+
+//==============================================================================
+class JucerTreeViewBase   : public TreeViewItem,
+                            public TooltipClient
+{
+public:
+    JucerTreeViewBase();
+    ~JucerTreeViewBase() override = default;
+
+    int getItemWidth() const override                   { return -1; }
+    int getItemHeight() const override                  { return 25; }
+
+    void paintOpenCloseButton (Graphics&, const Rectangle<float>& area, Colour backgroundColour, bool isMouseOver) override;
+    void paintItem (Graphics& g, int width, int height) override;
+    void itemClicked (const MouseEvent& e) override;
+    void itemSelectionChanged (bool isNowSelected) override;
+    void itemDoubleClicked (const MouseEvent&) override;
+    std::unique_ptr<Component> createItemComponent() override;
+    String getTooltip() override            { return {}; }
+    String getAccessibilityName() override  { return getDisplayName(); }
+
+    void cancelDelayedSelectionTimer();
+
+    //==============================================================================
+    virtual bool isRoot() const                                   { return false; }
+    virtual Font getFont() const;
+    virtual String getRenamingName() const = 0;
+    virtual String getDisplayName() const = 0;
+    virtual void setName (const String& newName) = 0;
+    virtual bool isMissing() const = 0;
+    virtual bool hasWarnings() const                              { return false; }
+    virtual Icon getIcon() const = 0;
+    virtual bool isIconCrossedOut() const                         { return false; }
+    virtual void paintIcon (Graphics& g, Rectangle<float> area);
+    virtual void paintContent (Graphics& g, Rectangle<int> area);
+    virtual int getRightHandButtonSpace() { return 0; }
+    virtual Colour getContentColour (bool isIcon) const;
+    virtual int getMillisecsAllowedForDragGesture()               { return 120; }
+    virtual File getDraggableFile() const                         { return {}; }
+
+    void refreshSubItems();
+    void showRenameBox();
+
+    virtual void deleteItem()                              {}
+    virtual void deleteAllSelectedItems()                  {}
+    virtual void showDocument()                            {}
+    virtual void showMultiSelectionPopupMenu (Point<int>)  {}
+    virtual void showPopupMenu (Point<int>)                {}
+    virtual void showAddMenu (Point<int>)                  {}
+    virtual void handlePopupMenuResult (int)               {}
+    virtual void setSearchFilter (const String&)           {}
+
+    void launchPopupMenu (PopupMenu&, Point<int>); // runs asynchronously, and produces a callback to handlePopupMenuResult().
+
+    //==============================================================================
+    // To handle situations where an item gets deleted before openness is
+    // restored for it, this OpennessRestorer keeps only a pointer to the
+    // topmost tree item.
+    struct WholeTreeOpennessRestorer   : public OpennessRestorer
+    {
+        WholeTreeOpennessRestorer (TreeViewItem& item)  : OpennessRestorer (getTopLevelItem (item))
+        {}
+
+    private:
+        static TreeViewItem& getTopLevelItem (TreeViewItem& item)
+        {
+            if (TreeViewItem* const p = item.getParentItem())
+                return getTopLevelItem (*p);
+
+            return item;
+        }
+    };
+
+    int textX = 0;
+
+protected:
+    ProjectContentComponent* getProjectContentComponent() const;
+    virtual void addSubItems() {}
+
+private:
+    class ItemSelectionTimer;
+    friend class ItemSelectionTimer;
+    std::unique_ptr<Timer> delayedSelectionTimer;
+
+    void invokeShowDocument();
+
+    JUCE_DECLARE_WEAK_REFERENCEABLE (JucerTreeViewBase)
+};
+
+//==============================================================================
+class TreePanelBase   : public Component
+{
+public:
+    TreePanelBase (const Project* p, const String& treeviewID)
+        : project (p), opennessStateKey (treeviewID)
+    {
+        addAndMakeVisible (tree);
+
+        tree.setRootItemVisible (true);
+        tree.setDefaultOpenness (true);
+        tree.setColour (TreeView::backgroundColourId, Colours::transparentBlack);
+        tree.setIndentSize (14);
+        tree.getViewport()->setScrollBarThickness (6);
+
+        tree.addMouseListener (this, true);
+    }
+
+    ~TreePanelBase() override
+    {
+        tree.setRootItem (nullptr);
+    }
+
+    void setRoot (std::unique_ptr<JucerTreeViewBase>);
+    void saveOpenness();
+
+    virtual void deleteSelectedItems()
+    {
+        if (rootItem != nullptr)
+            rootItem->deleteAllSelectedItems();
+    }
+
+    void setEmptyTreeMessage (const String& newMessage)
+    {
+        if (emptyTreeMessage != newMessage)
+        {
+            emptyTreeMessage = newMessage;
+            repaint();
+        }
+    }
+
+    static void drawEmptyPanelMessage (Component& comp, Graphics& g, const String& message)
+    {
+        const int fontHeight = 13;
+        const Rectangle<int> area (comp.getLocalBounds());
+        g.setColour (comp.findColour (defaultTextColourId));
+        g.setFont ((float) fontHeight);
+        g.drawFittedText (message, area.reduced (4, 2), Justification::centred, area.getHeight() / fontHeight);
+    }
+
+    void paint (Graphics& g) override
+    {
+        if (emptyTreeMessage.isNotEmpty() && (rootItem == nullptr || rootItem->getNumSubItems() == 0))
+            drawEmptyPanelMessage (*this, g, emptyTreeMessage);
+    }
+
+    void resized() override
+    {
+        tree.setBounds (getAvailableBounds());
+    }
+
+    Rectangle<int> getAvailableBounds() const
+    {
+        return Rectangle<int> (0, 2, getWidth() - 2, getHeight() - 2);
+    }
+
+    void mouseDown (const MouseEvent& e) override
+    {
+        if (e.eventComponent == &tree)
+        {
+            tree.clearSelectedItems();
+
+            if (e.mods.isRightButtonDown())
+                rootItem->showPopupMenu (e.getMouseDownScreenPosition());
+        }
+    }
+
+    const Project* project;
+    TreeView tree;
+    std::unique_ptr<JucerTreeViewBase> rootItem;
+
+private:
+    String opennessStateKey, emptyTreeMessage;
+};
+
+//==============================================================================
+class TreeItemComponent   : public Component
+{
+public:
+    TreeItemComponent (JucerTreeViewBase& i)  : item (&i)
+    {
+        setAccessible (false);
+        setInterceptsMouseClicks (false, true);
+        item->textX = iconWidth;
+    }
+
+    void paint (Graphics& g) override
+    {
+        if (item == nullptr)
+            return;
+
+        auto bounds = getLocalBounds().toFloat();
+        auto iconBounds = bounds.removeFromLeft ((float) iconWidth).reduced (7, 5);
+
+        bounds.removeFromRight ((float) buttons.size() * bounds.getHeight());
+
+        item->paintIcon    (g, iconBounds);
+        item->paintContent (g, bounds.toNearestInt());
+    }
+
+    void resized() override
+    {
+        auto r = getLocalBounds();
+
+        for (int i = buttons.size(); --i >= 0;)
+            buttons.getUnchecked (i)->setBounds (r.removeFromRight (r.getHeight()));
+    }
+
+    void addRightHandButton (Component* button)
+    {
+        buttons.add (button);
+        addAndMakeVisible (button);
+    }
+
+    WeakReference<JucerTreeViewBase> item;
+    OwnedArray<Component> buttons;
+
+    const int iconWidth = 25;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TreeItemComponent)
+};