[nostalgia/core/studio] Start tile sheet editor

src/nostalgia/core/studio/tilesheeteditor.hpp

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+/*
+ * Copyright 2016 - 2019 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <QSplitter>
+#include <QStringView>
+#include <QTableWidget>
+#include <QWidget>
+
+#include <nostalgia/studio/studio.hpp>
+
+namespace nostalgia::core {
+
+class SheetData: public QObject {
+	Q_OBJECT
+
+	private:
+		QVector<uint32_t> m_pixels;
+
+	public:
+		Q_INVOKABLE QString pixel(int index);
+
+		void updatePixels(const studio::Context *ctx, QString path);
+
+	signals:
+		void refreshTileSheet();
+
+};
+
+
+class TileSheetEditor: public QWidget {
+	Q_OBJECT
+
+	private:
+		const studio::Context *m_ctx = nullptr;
+		SheetData m_sheetData;
+		QSplitter *m_splitter = nullptr;
+		struct {
+			QComboBox *palette = nullptr;
+			QTableWidget *colorTable = nullptr;
+		} m_colorPicker;
+
+	public:
+		TileSheetEditor(QString path, const studio::Context *ctx, QWidget *parent);
+
+		virtual ~TileSheetEditor();
+
+	private:
+		QWidget *setupColorPicker(QWidget *widget);
+
+		void saveState();
+
+		void restoreState();
+
+};
+
+}