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"
This commit is contained in:
essej
334
deps/juce/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp
vendored
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334
deps/juce/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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class FileListTreeItem : public TreeViewItem,
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private TimeSliceClient,
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private AsyncUpdater,
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private ChangeListener
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{
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public:
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FileListTreeItem (FileTreeComponent& treeComp,
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DirectoryContentsList* parentContents,
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int indexInContents,
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const File& f,
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TimeSliceThread& t)
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: file (f),
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owner (treeComp),
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parentContentsList (parentContents),
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indexInContentsList (indexInContents),
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subContentsList (nullptr, false),
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thread (t)
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{
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DirectoryContentsList::FileInfo fileInfo;
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if (parentContents != nullptr
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&& parentContents->getFileInfo (indexInContents, fileInfo))
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{
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fileSize = File::descriptionOfSizeInBytes (fileInfo.fileSize);
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modTime = fileInfo.modificationTime.formatted ("%d %b '%y %H:%M");
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isDirectory = fileInfo.isDirectory;
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}
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else
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{
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isDirectory = true;
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}
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}
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~FileListTreeItem() override
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{
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thread.removeTimeSliceClient (this);
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clearSubItems();
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removeSubContentsList();
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}
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//==============================================================================
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bool mightContainSubItems() override { return isDirectory; }
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String getUniqueName() const override { return file.getFullPathName(); }
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int getItemHeight() const override { return owner.getItemHeight(); }
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var getDragSourceDescription() override { return owner.getDragAndDropDescription(); }
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void itemOpennessChanged (bool isNowOpen) override
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{
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if (isNowOpen)
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{
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clearSubItems();
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isDirectory = file.isDirectory();
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if (isDirectory)
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{
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if (subContentsList == nullptr && parentContentsList != nullptr)
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{
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auto l = new DirectoryContentsList (parentContentsList->getFilter(), thread);
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l->setDirectory (file,
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parentContentsList->isFindingDirectories(),
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parentContentsList->isFindingFiles());
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setSubContentsList (l, true);
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}
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changeListenerCallback (nullptr);
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}
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}
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}
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void removeSubContentsList()
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{
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if (subContentsList != nullptr)
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{
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subContentsList->removeChangeListener (this);
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subContentsList.reset();
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}
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}
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void setSubContentsList (DirectoryContentsList* newList, const bool canDeleteList)
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{
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removeSubContentsList();
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subContentsList = OptionalScopedPointer<DirectoryContentsList> (newList, canDeleteList);
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newList->addChangeListener (this);
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}
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bool selectFile (const File& target)
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{
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if (file == target)
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{
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setSelected (true, true);
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return true;
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}
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if (target.isAChildOf (file))
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{
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setOpen (true);
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for (int maxRetries = 500; --maxRetries > 0;)
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{
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for (int i = 0; i < getNumSubItems(); ++i)
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if (auto* f = dynamic_cast<FileListTreeItem*> (getSubItem (i)))
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if (f->selectFile (target))
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return true;
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// if we've just opened and the contents are still loading, wait for it..
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if (subContentsList != nullptr && subContentsList->isStillLoading())
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{
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Thread::sleep (10);
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rebuildItemsFromContentList();
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}
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else
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{
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break;
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}
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}
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}
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return false;
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}
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void changeListenerCallback (ChangeBroadcaster*) override
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{
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rebuildItemsFromContentList();
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}
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void rebuildItemsFromContentList()
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{
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clearSubItems();
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if (isOpen() && subContentsList != nullptr)
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{
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for (int i = 0; i < subContentsList->getNumFiles(); ++i)
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addSubItem (new FileListTreeItem (owner, subContentsList, i,
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subContentsList->getFile(i), thread));
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}
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}
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void paintItem (Graphics& g, int width, int height) override
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{
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ScopedLock lock (iconUpdate);
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if (file != File())
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{
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updateIcon (true);
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if (icon.isNull())
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thread.addTimeSliceClient (this);
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}
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owner.getLookAndFeel().drawFileBrowserRow (g, width, height,
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file, file.getFileName(),
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&icon, fileSize, modTime,
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isDirectory, isSelected(),
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indexInContentsList, owner);
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}
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String getAccessibilityName() override
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{
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return file.getFileName();
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}
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void itemClicked (const MouseEvent& e) override
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{
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owner.sendMouseClickMessage (file, e);
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}
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void itemDoubleClicked (const MouseEvent& e) override
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{
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TreeViewItem::itemDoubleClicked (e);
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owner.sendDoubleClickMessage (file);
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}
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void itemSelectionChanged (bool) override
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{
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owner.sendSelectionChangeMessage();
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}
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int useTimeSlice() override
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{
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updateIcon (false);
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return -1;
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}
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void handleAsyncUpdate() override
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{
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owner.repaint();
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}
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const File file;
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private:
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FileTreeComponent& owner;
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DirectoryContentsList* parentContentsList;
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int indexInContentsList;
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OptionalScopedPointer<DirectoryContentsList> subContentsList;
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bool isDirectory;
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TimeSliceThread& thread;
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CriticalSection iconUpdate;
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Image icon;
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String fileSize, modTime;
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void updateIcon (const bool onlyUpdateIfCached)
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{
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if (icon.isNull())
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{
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auto hashCode = (file.getFullPathName() + "_iconCacheSalt").hashCode();
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auto im = ImageCache::getFromHashCode (hashCode);
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if (im.isNull() && ! onlyUpdateIfCached)
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{
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im = juce_createIconForFile (file);
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if (im.isValid())
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ImageCache::addImageToCache (im, hashCode);
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}
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if (im.isValid())
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{
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{
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ScopedLock lock (iconUpdate);
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icon = im;
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}
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triggerAsyncUpdate();
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}
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}
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}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileListTreeItem)
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};
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//==============================================================================
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FileTreeComponent::FileTreeComponent (DirectoryContentsList& listToShow)
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: DirectoryContentsDisplayComponent (listToShow),
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itemHeight (22)
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{
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setRootItemVisible (false);
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refresh();
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}
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FileTreeComponent::~FileTreeComponent()
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{
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deleteRootItem();
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}
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void FileTreeComponent::refresh()
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{
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deleteRootItem();
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auto root = new FileListTreeItem (*this, nullptr, 0, directoryContentsList.getDirectory(),
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directoryContentsList.getTimeSliceThread());
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root->setSubContentsList (&directoryContentsList, false);
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setRootItem (root);
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}
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//==============================================================================
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File FileTreeComponent::getSelectedFile (const int index) const
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{
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if (auto* item = dynamic_cast<const FileListTreeItem*> (getSelectedItem (index)))
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return item->file;
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return {};
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}
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void FileTreeComponent::deselectAllFiles()
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{
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clearSelectedItems();
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}
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void FileTreeComponent::scrollToTop()
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{
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getViewport()->getVerticalScrollBar().setCurrentRangeStart (0);
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}
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void FileTreeComponent::setDragAndDropDescription (const String& description)
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{
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dragAndDropDescription = description;
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}
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void FileTreeComponent::setSelectedFile (const File& target)
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{
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if (auto* t = dynamic_cast<FileListTreeItem*> (getRootItem()))
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if (! t->selectFile (target))
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clearSelectedItems();
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}
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void FileTreeComponent::setItemHeight (int newHeight)
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{
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if (itemHeight != newHeight)
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{
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itemHeight = newHeight;
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if (auto* root = getRootItem())
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root->treeHasChanged();
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}
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}
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} // namespace juce
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Block a user