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

   This file is part of the JUCE library.
   Copyright (c) 2013 - Raw Material Software Ltd.

   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3

   Details of these licenses can be found 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.juce.com for more information.

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

//==============================================================================
static Typeface::Ptr getTypefaceForFontFromLookAndFeel (const Font& font)
{
    return LookAndFeel::getDefaultLookAndFeel().getTypefaceForFont (font);
}

typedef Typeface::Ptr (*GetTypefaceForFont) (const Font&);
extern GetTypefaceForFont juce_getTypefaceForFont;

//==============================================================================
LookAndFeel::LookAndFeel()
    : useNativeAlertWindows (false)
{
    /* if this fails it means you're trying to create a LookAndFeel object before
       the static Colours have been initialised. That ain't gonna work. It probably
       means that you're using a static LookAndFeel object and that your compiler has
       decided to intialise it before the Colours class.
    */
    jassert (Colours::white == Colour (0xffffffff));

    // set up the standard set of colours..
    const uint32 textButtonColour      = 0xffbbbbff;
    const uint32 textHighlightColour   = 0x401111ee;
    const uint32 standardOutlineColour = 0xb2808080;

    static const uint32 standardColours[] =
    {
        TextButton::buttonColourId,                 textButtonColour,
        TextButton::buttonOnColourId,               0xff4444ff,
        TextButton::textColourOnId,                 0xff000000,
        TextButton::textColourOffId,                0xff000000,

        ToggleButton::textColourId,                 0xff000000,

        TextEditor::backgroundColourId,             0xffffffff,
        TextEditor::textColourId,                   0xff000000,
        TextEditor::highlightColourId,              textHighlightColour,
        TextEditor::highlightedTextColourId,        0xff000000,
        TextEditor::outlineColourId,                0x00000000,
        TextEditor::focusedOutlineColourId,         textButtonColour,
        TextEditor::shadowColourId,                 0x38000000,

        CaretComponent::caretColourId,              0xff000000,

        Label::backgroundColourId,                  0x00000000,
        Label::textColourId,                        0xff000000,
        Label::outlineColourId,                     0x00000000,

        ScrollBar::backgroundColourId,              0x00000000,
        ScrollBar::thumbColourId,                   0xffffffff,

        TreeView::linesColourId,                    0x4c000000,
        TreeView::backgroundColourId,               0x00000000,
        TreeView::dragAndDropIndicatorColourId,     0x80ff0000,
        TreeView::selectedItemBackgroundColourId,   0x00000000,

        PopupMenu::backgroundColourId,              0xffffffff,
        PopupMenu::textColourId,                    0xff000000,
        PopupMenu::headerTextColourId,              0xff000000,
        PopupMenu::highlightedTextColourId,         0xffffffff,
        PopupMenu::highlightedBackgroundColourId,   0x991111aa,

        ComboBox::buttonColourId,                   0xffbbbbff,
        ComboBox::outlineColourId,                  standardOutlineColour,
        ComboBox::textColourId,                     0xff000000,
        ComboBox::backgroundColourId,               0xffffffff,
        ComboBox::arrowColourId,                    0x99000000,

        TextPropertyComponent::backgroundColourId,  0xffffffff,
        TextPropertyComponent::textColourId,        0xff000000,
        TextPropertyComponent::outlineColourId,     standardOutlineColour,

        ListBox::backgroundColourId,                0xffffffff,
        ListBox::outlineColourId,                   standardOutlineColour,
        ListBox::textColourId,                      0xff000000,

        Slider::backgroundColourId,                 0x00000000,
        Slider::thumbColourId,                      textButtonColour,
        Slider::trackColourId,                      0x7fffffff,
        Slider::rotarySliderFillColourId,           0x7f0000ff,
        Slider::rotarySliderOutlineColourId,        0x66000000,
        Slider::textBoxTextColourId,                0xff000000,
        Slider::textBoxBackgroundColourId,          0xffffffff,
        Slider::textBoxHighlightColourId,           textHighlightColour,
        Slider::textBoxOutlineColourId,             standardOutlineColour,

        ResizableWindow::backgroundColourId,        0xff777777,
        //DocumentWindow::textColourId,               0xff000000, // (this is deliberately not set)

        AlertWindow::backgroundColourId,            0xffededed,
        AlertWindow::textColourId,                  0xff000000,
        AlertWindow::outlineColourId,               0xff666666,

        ProgressBar::backgroundColourId,            0xffeeeeee,
        ProgressBar::foregroundColourId,            0xffaaaaee,

        TooltipWindow::backgroundColourId,          0xffeeeebb,
        TooltipWindow::textColourId,                0xff000000,
        TooltipWindow::outlineColourId,             0x4c000000,

        TabbedComponent::backgroundColourId,        0x00000000,
        TabbedComponent::outlineColourId,           0xff777777,
        TabbedButtonBar::tabOutlineColourId,        0x80000000,
        TabbedButtonBar::frontOutlineColourId,      0x90000000,

        Toolbar::backgroundColourId,                0xfff6f8f9,
        Toolbar::separatorColourId,                 0x4c000000,
        Toolbar::buttonMouseOverBackgroundColourId, 0x4c0000ff,
        Toolbar::buttonMouseDownBackgroundColourId, 0x800000ff,
        Toolbar::labelTextColourId,                 0xff000000,
        Toolbar::editingModeOutlineColourId,        0xffff0000,

        DrawableButton::textColourId,               0xff000000,
        DrawableButton::textColourOnId,             0xff000000,
        DrawableButton::backgroundColourId,         0x00000000,
        DrawableButton::backgroundOnColourId,       0xaabbbbff,

        HyperlinkButton::textColourId,              0xcc1111ee,

        GroupComponent::outlineColourId,            0x66000000,
        GroupComponent::textColourId,               0xff000000,

        BubbleComponent::backgroundColourId,        0xeeeeeebb,
        BubbleComponent::outlineColourId,           0x77000000,

        DirectoryContentsDisplayComponent::highlightColourId,   textHighlightColour,
        DirectoryContentsDisplayComponent::textColourId,        0xff000000,

        0x1000440, /*LassoComponent::lassoFillColourId*/        0x66dddddd,
        0x1000441, /*LassoComponent::lassoOutlineColourId*/     0x99111111,

        0x1005000, /*MidiKeyboardComponent::whiteNoteColourId*/               0xffffffff,
        0x1005001, /*MidiKeyboardComponent::blackNoteColourId*/               0xff000000,
        0x1005002, /*MidiKeyboardComponent::keySeparatorLineColourId*/        0x66000000,
        0x1005003, /*MidiKeyboardComponent::mouseOverKeyOverlayColourId*/     0x80ffff00,
        0x1005004, /*MidiKeyboardComponent::keyDownOverlayColourId*/          0xffb6b600,
        0x1005005, /*MidiKeyboardComponent::textLabelColourId*/               0xff000000,
        0x1005006, /*MidiKeyboardComponent::upDownButtonBackgroundColourId*/  0xffd3d3d3,
        0x1005007, /*MidiKeyboardComponent::upDownButtonArrowColourId*/       0xff000000,

        0x1004500, /*CodeEditorComponent::backgroundColourId*/                0xffffffff,
        0x1004502, /*CodeEditorComponent::highlightColourId*/                 textHighlightColour,
        0x1004503, /*CodeEditorComponent::defaultTextColourId*/               0xff000000,
        0x1004504, /*CodeEditorComponent::lineNumberBackgroundId*/            0x44999999,
        0x1004505, /*CodeEditorComponent::lineNumberTextId*/                  0x44000000,

        0x1007000, /*ColourSelector::backgroundColourId*/                     0xffe5e5e5,
        0x1007001, /*ColourSelector::labelTextColourId*/                      0xff000000,

        0x100ad00, /*KeyMappingEditorComponent::backgroundColourId*/          0x00000000,
        0x100ad01, /*KeyMappingEditorComponent::textColourId*/                0xff000000,

        FileSearchPathListComponent::backgroundColourId,        0xffffffff,

        FileChooserDialogBox::titleTextColourId,                0xff000000,
    };

    for (int i = 0; i < numElementsInArray (standardColours); i += 2)
        setColour ((int) standardColours [i], Colour ((uint32) standardColours [i + 1]));

    juce_getTypefaceForFont = getTypefaceForFontFromLookAndFeel;
}

LookAndFeel::~LookAndFeel()
{
    masterReference.clear();
}

//==============================================================================
Colour LookAndFeel::findColour (int colourID) const noexcept
{
    const ColourSetting c = { colourID, Colour() };
    const int index = colours.indexOf (c);

    if (index >= 0)
        return colours.getReference (index).colour;

    jassertfalse;
    return Colours::black;
}

void LookAndFeel::setColour (int colourID, Colour newColour) noexcept
{
    const ColourSetting c = { colourID, newColour };
    const int index = colours.indexOf (c);

    if (index >= 0)
        colours.getReference (index).colour = newColour;
    else
        colours.add (c);
}

bool LookAndFeel::isColourSpecified (const int colourID) const noexcept
{
    const ColourSetting c = { colourID, Colour() };
    return colours.contains (c);
}

//==============================================================================
LookAndFeel& LookAndFeel::getDefaultLookAndFeel() noexcept
{
    return Desktop::getInstance().getDefaultLookAndFeel();
}

void LookAndFeel::setDefaultLookAndFeel (LookAndFeel* newDefaultLookAndFeel) noexcept
{
    Desktop::getInstance().setDefaultLookAndFeel (newDefaultLookAndFeel);
}

//==============================================================================
Typeface::Ptr LookAndFeel::getTypefaceForFont (const Font& font)
{
    if (defaultSans.isNotEmpty() && font.getTypefaceName() == Font::getDefaultSansSerifFontName())
    {
        Font f (font);
        f.setTypefaceName (defaultSans);
        return Typeface::createSystemTypefaceFor (f);
    }

    return Font::getDefaultTypefaceForFont (font);
}

void LookAndFeel::setDefaultSansSerifTypefaceName (const String& newName)
{
    if (defaultSans != newName)
    {
        Typeface::clearTypefaceCache();
        defaultSans = newName;
    }
}

//==============================================================================
MouseCursor LookAndFeel::getMouseCursorFor (Component& component)
{
    MouseCursor m (component.getMouseCursor());

    Component* parent = component.getParentComponent();
    while (parent != nullptr && m == MouseCursor::ParentCursor)
    {
        m = parent->getMouseCursor();
        parent = parent->getParentComponent();
    }

    return m;
}

LowLevelGraphicsContext* LookAndFeel::createGraphicsContext (const Image& imageToRenderOn, const Point<int>& origin,
                                                             const RectangleList<int>& initialClip)
{
    return new LowLevelGraphicsSoftwareRenderer (imageToRenderOn, origin, initialClip);
}

//==============================================================================
void LookAndFeel::setUsingNativeAlertWindows (bool shouldUseNativeAlerts)
{
    useNativeAlertWindows = shouldUseNativeAlerts;
}

bool LookAndFeel::isUsingNativeAlertWindows()
{
   #if JUCE_LINUX
    return false; // not available currently..
   #else
    return useNativeAlertWindows;
   #endif
}