JUCE/extras/Projucer/Source/ComponentEditor/PaintElements/jucer_PaintElementImage.h

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

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

   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 5 End-User License
   Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
   27th April 2017).

   End User License Agreement: www.juce.com/juce-5-licence
   Privacy Policy: www.juce.com/juce-5-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

#include "jucer_ColouredElement.h"
#include "../Properties/jucer_FilePropertyComponent.h"
#include "jucer_ImageResourceProperty.h"
#include "jucer_PaintElementUndoableAction.h"

//==============================================================================
class PaintElementImage   : public PaintElement
{
public:
    PaintElementImage (PaintRoutine*);
    ~PaintElementImage() override;

    enum StretchMode
    {
        stretched = 0,
        proportional = 1,
        proportionalReducingOnly = 2
    };

    const Drawable* getDrawable();
    void draw (Graphics&, const ComponentLayout*, const Rectangle<int>&) override;

    //==============================================================================
    void getEditableProperties (Array <PropertyComponent*>&, bool) override;
    void fillInGeneratedCode (GeneratedCode&, String&) override;
    void applyCustomPaintSnippets (StringArray& snippets) override;

    //==============================================================================
    class SetResourceAction   : public PaintElementUndoableAction <PaintElementImage>
    {
    public:
        SetResourceAction (PaintElementImage* const, const String&);

        bool perform();
        bool undo();

    private:
        String newResource, oldResource;
    };

    void setResource (const String&, const bool);

    String getResource() const;

    //==============================================================================
    class SetOpacityAction   : public PaintElementUndoableAction <PaintElementImage>
    {
    public:
        SetOpacityAction (PaintElementImage* const, const double);

        bool perform();
        bool undo();

    private:
        double newOpacity, oldOpacity;
    };

    void setOpacity (double, const bool);
    double getOpacity() const noexcept;

    //==============================================================================
    static const char* getTagName() noexcept;

    void resetToImageSize();

    //==============================================================================
    class SetStretchModeAction   : public PaintElementUndoableAction <PaintElementImage>
    {
    public:
        SetStretchModeAction (PaintElementImage* const, const StretchMode);

        bool perform();
        bool undo();

    private:
        StretchMode newValue, oldValue;
    };

    StretchMode getStretchMode() const noexcept;

    void setStretchMode (const StretchMode, const bool);

    //==============================================================================
    XmlElement* createXml() const override;

    bool loadFromXml (const XmlElement&) override;

private:
    String resourceName;
    double opacity;
    StretchMode mode;
    String customPaintCode;

    //==============================================================================
    class ImageElementResourceProperty   : public ImageResourceProperty <PaintElementImage>
    {
    public:
        ImageElementResourceProperty (PaintElementImage* const);

        void setResource (const String&);
        String getResource() const;
    };

    //==============================================================================
    class OpacityProperty   : public SliderPropertyComponent
    {
    public:
        OpacityProperty (PaintElementImage* const);

        void setValue (double);
        double getValue() const;

        ElementListener<PaintElementImage> listener;
    };

    class StretchModeProperty   : public ChoicePropertyComponent
    {
    public:
        StretchModeProperty (PaintElementImage* const);

        void setIndex (int);
        int getIndex() const;

        ElementListener<PaintElementImage> listener;
    };

    class ResetSizeProperty   : public ButtonPropertyComponent
    {
    public:
        ResetSizeProperty (PaintElementImage* const);

        void buttonClicked();
        String getButtonText() const;

    private:
        PaintElementImage* const element;
    };
};