Rearranged the layout of the source tree, giving it a slightly flatter directory structure. Also fixed a small bug with DragAndDropComponents that was stopping the toolbar customisation working properly.

src/gui/components/filebrowser/juce_FileListComponent.cpp

@@ -0,0 +1,269 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library - "Jules' Utility Class Extensions"
+   Copyright 2004-9 by Raw Material Software Ltd.
+
+  ------------------------------------------------------------------------------
+
+   JUCE can be redistributed and/or modified under the terms of the GNU General
+   Public License (Version 2), as published by the Free Software Foundation.
+   A copy of the license is included in the JUCE distribution, or can be found
+   online at www.gnu.org/licenses.
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.rawmaterialsoftware.com/juce for more information.
+
+  ==============================================================================
+*/
+
+#include "../../../core/juce_StandardHeader.h"
+
+BEGIN_JUCE_NAMESPACE
+
+#include "juce_FileListComponent.h"
+#include "../lookandfeel/juce_LookAndFeel.h"
+#include "../../graphics/imaging/juce_ImageCache.h"
+#include "../../../events/juce_AsyncUpdater.h"
+
+Image* juce_createIconForFile (const File& file);
+
+
+//==============================================================================
+FileListComponent::FileListComponent (DirectoryContentsList& listToShow)
+    : ListBox (String::empty, 0),
+      DirectoryContentsDisplayComponent (listToShow)
+{
+    setModel (this);
+    fileList.addChangeListener (this);
+}
+
+FileListComponent::~FileListComponent()
+{
+    fileList.removeChangeListener (this);
+    deleteAllChildren();
+}
+
+const File FileListComponent::getSelectedFile() const
+{
+    return fileList.getFile (getSelectedRow());
+}
+
+void FileListComponent::scrollToTop()
+{
+    getVerticalScrollBar()->setCurrentRangeStart (0);
+}
+
+//==============================================================================
+void FileListComponent::changeListenerCallback (void*)
+{
+    updateContent();
+
+    if (lastDirectory != fileList.getDirectory())
+    {
+        lastDirectory = fileList.getDirectory();
+        deselectAllRows();
+    }
+}
+
+//==============================================================================
+class FileListItemComponent  : public Component,
+                               public TimeSliceClient,
+                               public AsyncUpdater
+{
+public:
+    //==============================================================================
+    FileListItemComponent (FileListComponent& owner_,
+                           TimeSliceThread& thread_) throw()
+        : owner (owner_),
+          thread (thread_),
+          icon (0)
+    {
+    }
+
+    ~FileListItemComponent() throw()
+    {
+        thread.removeTimeSliceClient (this);
+
+        clearIcon();
+    }
+
+    //==============================================================================
+    void paint (Graphics& g)
+    {
+        getLookAndFeel().drawFileBrowserRow (g, getWidth(), getHeight(),
+                                             file.getFileName(),
+                                             icon,
+                                             fileSize, modTime,
+                                             isDirectory, highlighted,
+                                             index);
+    }
+
+    void mouseDown (const MouseEvent& e)
+    {
+        owner.selectRowsBasedOnModifierKeys (index, e.mods);
+        owner.sendMouseClickMessage (file, e);
+    }
+
+    void mouseDoubleClick (const MouseEvent&)
+    {
+        owner.sendDoubleClickMessage (file);
+    }
+
+    void update (const File& root,
+                 const DirectoryContentsList::FileInfo* const fileInfo,
+                 const int index_,
+                 const bool highlighted_) throw()
+    {
+        thread.removeTimeSliceClient (this);
+
+        if (highlighted_ != highlighted
+             || index_ != index)
+        {
+            index = index_;
+            highlighted = highlighted_;
+            repaint();
+        }
+
+        File newFile;
+        String newFileSize;
+        String newModTime;
+
+        if (fileInfo != 0)
+        {
+            newFile = root.getChildFile (fileInfo->filename);
+            newFileSize = File::descriptionOfSizeInBytes (fileInfo->fileSize);
+            newModTime = fileInfo->modificationTime.formatted (T("%d %b '%y %H:%M"));
+        }
+
+        if (newFile != file
+             || fileSize != newFileSize
+             || modTime != newModTime)
+        {
+            file = newFile;
+            fileSize = newFileSize;
+            modTime = newModTime;
+
+            isDirectory = fileInfo != 0 && fileInfo->isDirectory;
+            repaint();
+
+            clearIcon();
+        }
+
+        if (file != File::nonexistent
+            && icon == 0 && ! isDirectory)
+        {
+            updateIcon (true);
+
+            if (icon == 0)
+                thread.addTimeSliceClient (this);
+        }
+    }
+
+    bool useTimeSlice()
+    {
+        updateIcon (false);
+        return false;
+    }
+
+    void handleAsyncUpdate()
+    {
+        repaint();
+    }
+
+    //==============================================================================
+    juce_UseDebuggingNewOperator
+
+private:
+    FileListComponent& owner;
+    TimeSliceThread& thread;
+    bool highlighted;
+    int index;
+    File file;
+    String fileSize;
+    String modTime;
+    Image* icon;
+    bool isDirectory;
+
+    void clearIcon() throw()
+    {
+        ImageCache::release (icon);
+        icon = 0;
+    }
+
+    void updateIcon (const bool onlyUpdateIfCached) throw()
+    {
+        if (icon == 0)
+        {
+            const int hashCode = (file.getFullPathName() + T("_iconCacheSalt")).hashCode();
+            Image* im = ImageCache::getFromHashCode (hashCode);
+
+            if (im == 0 && ! onlyUpdateIfCached)
+            {
+                im = juce_createIconForFile (file);
+
+                if (im != 0)
+                    ImageCache::addImageToCache (im, hashCode);
+            }
+
+            if (im != 0)
+            {
+                icon = im;
+                triggerAsyncUpdate();
+            }
+        }
+    }
+};
+
+//==============================================================================
+int FileListComponent::getNumRows()
+{
+    return fileList.getNumFiles();
+}
+
+void FileListComponent::paintListBoxItem (int, Graphics&, int, int, bool)
+{
+}
+
+Component* FileListComponent::refreshComponentForRow (int row, bool isSelected, Component* existingComponentToUpdate)
+{
+    FileListItemComponent* comp = dynamic_cast <FileListItemComponent*> (existingComponentToUpdate);
+
+    if (comp == 0)
+    {
+        delete existingComponentToUpdate;
+        existingComponentToUpdate = comp = new FileListItemComponent (*this, fileList.getTimeSliceThread());
+    }
+
+    DirectoryContentsList::FileInfo fileInfo;
+
+    if (fileList.getFileInfo (row, fileInfo))
+        comp->update (fileList.getDirectory(), &fileInfo, row, isSelected);
+    else
+        comp->update (fileList.getDirectory(), 0, row, isSelected);
+
+    return comp;
+}
+
+void FileListComponent::selectedRowsChanged (int /*lastRowSelected*/)
+{
+    sendSelectionChangeMessage();
+}
+
+void FileListComponent::deleteKeyPressed (int /*currentSelectedRow*/)
+{
+}
+
+void FileListComponent::returnKeyPressed (int currentSelectedRow)
+{
+    sendDoubleClickMessage (fileList.getFile (currentSelectedRow));
+}
+
+
+END_JUCE_NAMESPACE