/*
 * Tencent is pleased to support the open source community by making Puerts available.
 * Copyright (C) 2020 THL A29 Limited, a Tencent company.  All rights reserved.
 * Puerts is licensed under the BSD 3-Clause License, except for the third-party components listed in the file 'LICENSE' which may
 * be subject to their corresponding license terms. This file is subject to the terms and conditions defined in file 'LICENSE',
 * which is part of this source code package.
 */

#include "GenDTSStyle.h"
#include "Framework/Application/SlateApplication.h"
#include "Styling/SlateStyleRegistry.h"
#include "Slate/SlateGameResources.h"
#include "Interfaces/IPluginManager.h"

TSharedPtr<FSlateStyleSet> FGenDTSStyle::StyleInstance = NULL;

void FGenDTSStyle::Initialize()
{
    if (!StyleInstance.IsValid())
    {
        StyleInstance = Create();
        FSlateStyleRegistry::RegisterSlateStyle(*StyleInstance);
    }
}

void FGenDTSStyle::Shutdown()
{
    FSlateStyleRegistry::UnRegisterSlateStyle(*StyleInstance);
    ensure(StyleInstance.IsUnique());
    StyleInstance.Reset();
}

FName FGenDTSStyle::GetStyleSetName()
{
    static FName StyleSetName(TEXT("GenDTSStyle"));
    return StyleSetName;
}

#define IMAGE_BRUSH(RelativePath, ...) FSlateImageBrush(Style->RootToContentDir(RelativePath, TEXT(".png")), __VA_ARGS__)
#define BOX_BRUSH(RelativePath, ...) FSlateBoxBrush(Style->RootToContentDir(RelativePath, TEXT(".png")), __VA_ARGS__)
#define BORDER_BRUSH(RelativePath, ...) FSlateBorderBrush(Style->RootToContentDir(RelativePath, TEXT(".png")), __VA_ARGS__)
#define TTF_FONT(RelativePath, ...) FSlateFontInfo(Style->RootToContentDir(RelativePath, TEXT(".ttf")), __VA_ARGS__)
#define OTF_FONT(RelativePath, ...) FSlateFontInfo(Style->RootToContentDir(RelativePath, TEXT(".otf")), __VA_ARGS__)

const FVector2D Icon16x16(16.0f, 16.0f);
const FVector2D Icon20x20(20.0f, 20.0f);
const FVector2D Icon40x40(40.0f, 40.0f);

TSharedRef<FSlateStyleSet> FGenDTSStyle::Create()
{
    TSharedRef<FSlateStyleSet> Style = MakeShareable(new FSlateStyleSet("GenDTSStyle"));
    Style->SetContentRoot(IPluginManager::Get().FindPlugin("Puerts")->GetBaseDir() / TEXT("Resources"));

    Style->Set("GenDTS.PluginAction", new IMAGE_BRUSH(TEXT("ButtonIcon_40x"), Icon40x40));

    return Style;
}

#undef IMAGE_BRUSH
#undef BOX_BRUSH
#undef BORDER_BRUSH
#undef TTF_FONT
#undef OTF_FONT

void FGenDTSStyle::ReloadTextures()
{
    if (FSlateApplication::IsInitialized())
    {
        FSlateApplication::Get().GetRenderer()->ReloadTextureResources();
    }
}

const ISlateStyle& FGenDTSStyle::Get()
{
    return *StyleInstance;
}