/*
  ==============================================================================

   This file is part of the JUCE 6 technical preview.
   Copyright (c) 2017 - ROLI Ltd.

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For this technical preview, this file is not subject to commercial licensing.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

//==============================================================================
/**
    Shows a set of file paths in a list, allowing them to be added, removed or
    re-ordered.

    @see FileSearchPath

    @tags{GUI}
*/
class JUCE_API  FileSearchPathListComponent  : public Component,
                                               public SettableTooltipClient,
                                               public FileDragAndDropTarget,
                                               private ListBoxModel
{
public:
    //==============================================================================
    /** Creates an empty FileSearchPathListComponent. */
    FileSearchPathListComponent();

    /** Destructor. */
    ~FileSearchPathListComponent() override;

    //==============================================================================
    /** Returns the path as it is currently shown. */
    const FileSearchPath& getPath() const noexcept                  { return path; }

    /** Changes the current path. */
    void setPath (const FileSearchPath& newPath);

    /** Sets a file or directory to be the default starting point for the browser to show.

        This is only used if the current file hasn't been set.
    */
    void setDefaultBrowseTarget (const File& newDefaultDirectory);

    /** A set of colour IDs to use to change the colour of various aspects of the label.

        These constants can be used either via the Component::setColour(), or LookAndFeel::setColour()
        methods.

        @see Component::setColour, Component::findColour, LookAndFeel::setColour, LookAndFeel::findColour
    */
    enum ColourIds
    {
        backgroundColourId      = 0x1004100, /**< The background colour to fill the component with.
                                                  Make this transparent if you don't want the background to be filled. */
    };

    //==============================================================================
    /** @internal */
    int getNumRows() override;
    /** @internal */
    void paintListBoxItem (int rowNumber, Graphics& g, int width, int height, bool rowIsSelected) override;
    /** @internal */
    void deleteKeyPressed (int lastRowSelected) override;
    /** @internal */
    void returnKeyPressed (int lastRowSelected) override;
    /** @internal */
    void listBoxItemDoubleClicked (int row, const MouseEvent&) override;
    /** @internal */
    void selectedRowsChanged (int lastRowSelected) override;
    /** @internal */
    void resized() override;
    /** @internal */
    void paint (Graphics&) override;
    /** @internal */
    bool isInterestedInFileDrag (const StringArray&) override;
    /** @internal */
    void filesDropped (const StringArray& files, int, int) override;

private:
    //==============================================================================
    FileSearchPath path;
    File defaultBrowseTarget;

    ListBox listBox;
    TextButton addButton, removeButton, changeButton;
    DrawableButton upButton, downButton;

    void changed();
    void updateButtons();

    void addPath();
    void deleteSelected();
    void editSelected();
    void moveSelection (int);

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileSearchPathListComponent)
};

} // namespace juce