JUCE/extras/Projucer/Source/Wizards/jucer_TemplateThumbnailsComponent.h

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

   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.

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

#pragma once


//==============================================================================
/**
    Template option tile button.
    The drawable button object class for the tile icons and buttons in the TemplateTileBrowser
*/
class TemplateOptionButton   : public DrawableButton
{
public:
    TemplateOptionButton (const String& buttonName, ButtonStyle buttonStyle, const char* thumbSvg)
       : DrawableButton (buttonName, buttonStyle)
    {
        // svg for thumbnail icon
        auto svg = parseXML (thumbSvg);
        jassert (svg != nullptr);
        thumb = Drawable::createFromSVG (*svg);

        // svg for thumbnail background highlight
        auto backSvg = parseXML (BinaryData::wizard_Highlight_svg);
        jassert (backSvg != nullptr);
        hoverBackground = Drawable::createFromSVG (*backSvg);

        name = buttonName;

        description = "<insert description>";
    }

    void paintButton (Graphics& g, bool isMouseOverButton, bool /*isButtonDown*/) override
    {
        const Rectangle<float> r (getLocalBounds().toFloat());
        const Colour buttonColour (0xffA35E93);

        if (isMouseOverButton)
        {
            if (getStyle() == ImageFitted)
            {
                hoverBackground->drawWithin (g, r, RectanglePlacement::centred, 1.0);
                thumb->drawWithin (g, r, RectanglePlacement::centred, 1.0);
            }
            else
            {
                g.setColour (buttonColour.withAlpha (0.3f));
                g.fillRoundedRectangle (r.reduced (2.0f, 2.0f), 10.0f);
                g.setColour (buttonColour);
                g.drawRoundedRectangle (r.reduced (2.0f, 2.0f), 10.0f, 2.0f);
            }
        }
        else
        {
            if (getStyle() == ImageFitted)
            {
                thumb->drawWithin (g, r, RectanglePlacement::centred, 1.0);
            }
            else
            {
                g.setColour (buttonColour);
                g.drawRoundedRectangle (r.reduced (2.0f, 2.0f), 10.0f, 2.0f);
            }
        }

        Rectangle<float> textTarget;

        // center the text for the text buttons or position the text in the image buttons
        if (getStyle() != ImageFitted)
        {
            textTarget = getLocalBounds().toFloat();
        }
        else
        {
            textTarget = RectanglePlacement (RectanglePlacement::centred).appliedTo (thumb->getDrawableBounds(), r);
            textTarget = textTarget.removeFromBottom (textTarget.getHeight() * 0.3f);
        }

        g.setColour (findColour (defaultTextColourId));
        g.drawText (name, textTarget, Justification::centred, true);
    }

    void resized() override
    {
        thumb->setBoundsToFit (getLocalBounds(), Justification::centred, false);
    }

    void setDescription (String descript) noexcept
    {
        description = descript;
    }

    String getDescription() const noexcept
    {
        return description;
    }

private:
    using DrawableButton::clicked;

    std::unique_ptr<Drawable> thumb, hoverBackground;
    String name, description;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TemplateOptionButton)
};



//==============================================================================
/**
    Project Template Component for front page.
    Features multiple icon buttons to select the type of project template
*/
class TemplateTileBrowser   : public Component
{
public:
    TemplateTileBrowser (WizardComp* projectWizard)
    {
        const int numWizardButtons = getNumWizards() - 1; // ( - 1 because the last one is blank)

        for (int i = 0; i < numWizardButtons; ++i)
        {
            auto wizard = createWizardType (i);

            TemplateOptionButton* b = new TemplateOptionButton (wizard->getName(),
                                                                TemplateOptionButton::ImageFitted,
                                                                wizard->getIcon());
            optionButtons.add (b);
            addAndMakeVisible (b);
            b->setDescription (wizard->getDescription());
            b->onClick = [this, b] { showWizardButton (b); };
            b->onStateChange = [this] { repaint(); };
        }

        // Handle Open Project button functionality
        ApplicationCommandManager& commandManager = ProjucerApplication::getCommandManager();

        addAndMakeVisible (blankProjectButton);
        addAndMakeVisible (openProjectButton);
        addAndMakeVisible (browseDemosButton);
        addAndMakeVisible (viewTutorialsButton);

        blankProjectButton.onClick   = [this] { createBlankProject(); };
        openProjectButton.setCommandToTrigger (&commandManager, CommandIDs::open, true);
        browseDemosButton.setCommandToTrigger (&commandManager, CommandIDs::launchDemoRunner, true);
        viewTutorialsButton.setCommandToTrigger (&commandManager, CommandIDs::showTutorials, true);

        newProjectWizard = projectWizard;
    }

    void paint (Graphics& g) override
    {
        g.setColour (findColour (contentHeaderBackgroundColourId));
        g.fillRect (getLocalBounds().removeFromTop (60));

        g.setColour (Colours::white);
        g.setFont (20.0f);
        g.drawText ("Create New Project", 0, 0, getWidth(), 60, Justification::centred, true);

        auto descriptionBox = (getLocalBounds().reduced (30).removeFromBottom (50));

        g.setColour (findColour (defaultTextColourId));
        g.setFont (15.0f);

        for (int i = 0; i < optionButtons.size(); ++i)
            if (optionButtons.getUnchecked(i)->isOver())
                g.drawFittedText (optionButtons.getUnchecked(i)->getDescription(), descriptionBox, Justification::centredBottom, 5, 1.0f);
    }

    void resized() override
    {
        auto bounds = getLocalBounds().reduced (40, 0);
        bounds.removeFromTop (60);

        {
            auto optionBounds = bounds.removeFromTop (roundToInt (bounds.getHeight() * 0.65f));

            auto topSlice = optionBounds.removeFromTop (optionBounds.getHeight() / 2).reduced (0, 10);
            auto bottomSlice = optionBounds.reduced (0, 10);

            const int numHorizontal = 4;

            for (int i = 0; i < optionButtons.size(); ++i)
            {
                auto& sliceToUse = (i < numHorizontal ? topSlice : bottomSlice);

                optionButtons.getUnchecked (i)->setBounds (sliceToUse.removeFromLeft (sliceToUse.getWidth() / (4 - (i % 4))).reduced (10, 0));
            }
        }

        bounds.removeFromTop (20);
        auto topButtonBounds = bounds.removeFromTop (50);

        openProjectButton.setBounds (topButtonBounds.reduced (80, 0));

        bounds.removeFromTop (10);
        auto bottomButtonBounds = bounds.removeFromTop (35);

        blankProjectButton.setBounds  (bottomButtonBounds.removeFromLeft (bottomButtonBounds.getWidth() / 3).reduced (10, 0));
        browseDemosButton.setBounds   (bottomButtonBounds.removeFromLeft (bottomButtonBounds.getWidth() / 2).reduced (10, 0));
        viewTutorialsButton.setBounds (bottomButtonBounds.removeFromLeft (bottomButtonBounds.getWidth()).reduced (10, 0));
    }

    void showWizard (const String& name)
    {
        newProjectWizard->projectType.setText (name);

        if (SlidingPanelComponent* parent = findParentComponentOfClass<SlidingPanelComponent>())
            parent->goToTab (1);
        else
            jassertfalse;
    }

    void createBlankProject()
    {
        showWizard (BlankAppWizard().getName());
    }

private:
    OwnedArray<TemplateOptionButton> optionButtons;
    NewProjectWizardClasses::WizardComp* newProjectWizard;

    TemplateOptionButton blankProjectButton   { "Create Blank Project",  TemplateOptionButton::ImageOnButtonBackground, BinaryData::wizard_Openfile_svg },
                         openProjectButton    { "Open Existing Project", TemplateOptionButton::ImageOnButtonBackground, BinaryData::wizard_Openfile_svg },
                         browseDemosButton    { "Browse JUCE Demos",     TemplateOptionButton::ImageOnButtonBackground, BinaryData::wizard_Openfile_svg },
                         viewTutorialsButton  { "View JUCE Tutorials",   TemplateOptionButton::ImageOnButtonBackground, BinaryData::wizard_Openfile_svg };

    void showWizardButton (Button* b)
    {
        if (dynamic_cast<TemplateOptionButton*> (b) != nullptr)
            showWizard (b->getButtonText());
    }

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TemplateTileBrowser)
};