[nostalgia/core] Add basic color selection and basic tilesheet editing

src/nostalgia/core/CMakeLists.txt

@@ -17,6 +17,7 @@ elseif(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
 	add_subdirectory(userland)
 endif()
 if(NOSTALGIA_BUILD_STUDIO)
+	add_subdirectory(qt)
 	add_subdirectory(studio)
 endif()
 

src/nostalgia/core/gfx.cpp

@@ -149,6 +149,32 @@ Color32 toColor32(Color16 nc) {
 	return a | (b << 8) | (g << 16) | (r << 24);
 }
 
+
+uint8_t red32(Color32 c) {
+	return (c & 0x000000ff) >> 0;
+}
+
+uint8_t green32(Color32 c) {
+	return (c & 0x0000ff00) >> 8;
+}
+
+uint8_t blue32(Color32 c) {
+	return (c & 0x00ff0000) >> 16;
+}
+
+
+uint8_t red32(Color16 c) {
+	return ((c & 0b0000000000011111) >> 0) * 8;
+}
+
+uint8_t green32(Color16 c) {
+	return ((c & 0b0000001111100000) >> 5) * 8;
+}
+
+uint8_t blue32(Color16 c) {
+	return ((c & 0b0111110000000000) >> 10) * 8;
+}
+
 void puts(Context *ctx, int column, int row, const char *str) {
 	for (int i = 0; str[i]; i++) {
 		setTile(ctx, 0, column + i, row, charMap[static_cast<int>(str[i])]);

src/nostalgia/core/gfx.hpp

@@ -71,6 +71,19 @@ ox::Error model(T *io, NostalgiaGraphic *ng) {
 
 [[nodiscard]] Color32 toColor32(Color16 nc);
 
+[[nodiscard]] uint8_t red32(Color16 c);
+
+[[nodiscard]] uint8_t green32(Color16 c);
+
+[[nodiscard]] uint8_t blue32(Color16 c);
+
+
+[[nodiscard]] uint8_t red32(Color32 c);
+
+[[nodiscard]] uint8_t green32(Color32 c);
+
+[[nodiscard]] uint8_t blue32(Color32 c);
+
 void puts(Context *ctx, int column, int row, const char *str);
 
 void setTile(Context *ctx, int layer, int column, int row, uint8_t tile);

src/nostalgia/core/sdl/gfx.cpp

@@ -64,7 +64,7 @@ ox::Error initConsole(Context *ctx) {
 
 SDL_Color createSDL_Color(Color16 nc) {
 	SDL_Color c;
-	// extract the color chanels and scale them up for a 24 bit color
+	// extract the color channels and scale them up for a 24 bit color
 	c.r = ((nc & 0b0000000000011111) >> 0) * 8;
 	c.g = ((nc & 0b0000001111100000) >> 5) * 8;
 	c.b = ((nc & 0b0111110000000000) >> 10) * 8;

src/nostalgia/core/studio/CMakeLists.txt

@@ -14,6 +14,7 @@ target_link_libraries(
 		Qt5::Widgets
 		Qt5::QuickWidgets
 		NostalgiaStudio
+		NostalgiaCore-Qt
 		NostalgiaCore
 		OxFS
 		OxStd

src/nostalgia/core/studio/Pixel.qml

@@ -26,4 +26,10 @@ Rectangle {
 		anchors.horizontalCenter: pixel.horizontalCenter
 		anchors.bottom: pixel.bottom
 	}
+
+	MouseArea {
+		anchors.fill: parent
+		onClicked: sheetData.updatePixels([pixel])
+	}
+
 }

src/nostalgia/core/studio/TileSheetEditor.qml

@@ -16,12 +16,12 @@ Rectangle {
 	Grid {
 		id: tileGrid
 		property int baseTileSize: Math.min(parent.width / tileGrid.columns, parent.height / tileGrid.rows)
-		width: tileGrid.columns * tileGrid.baseTileSize * 0.85
-		height: tileGrid.rows * tileGrid.baseTileSize * 0.85
+		width: tileGrid.columns * tileGrid.baseTileSize * 0.90
+		height: tileGrid.rows * tileGrid.baseTileSize * 0.90
 		anchors.horizontalCenter: tileSheetEditor.horizontalCenter
 		anchors.verticalCenter: tileSheetEditor.verticalCenter
-		rows: 2
-		columns: 2
+		rows: sheetData.rows
+		columns: sheetData.columns
 		Repeater {
 			model: tileGrid.rows * tileGrid.columns
 			Tile {

src/nostalgia/core/studio/tilesheeteditor.cpp

@@ -6,7 +6,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+#include <QHeaderView>
 #include <QQmlContext>
+#include <QQuickItem>
 #include <QQuickWidget>
 #include <QSettings>
 #include <QSplitter>
@@ -17,11 +19,68 @@
 
 namespace nostalgia::core {
 
+QColor toQColor(Color16 nc) {
+	const auto r = red32(nc);
+	const auto g = green32(nc);
+	const auto b = blue32(nc);
+	const auto a = 255;
+	return QColor(r, g, b, a);
+}
+
 
 QString SheetData::pixel(int index) {
 	return m_palette[m_pixels[index]];
 }
 
+void SheetData::updatePixels(QVariantList pixels) {
+	for (auto pi : pixels) {
+		// TODO: replace with push to QUndoStack
+		auto p = qobject_cast<QQuickItem*>(pi.value<QObject*>());
+		p->setProperty("color", m_palette[m_selectedColor]);
+	}
+}
+
+int SheetData::columns() {
+	return m_columns;
+}
+
+void SheetData::setColumns(int columns) {
+	m_columns = columns;
+	emit columnsChanged();
+}
+
+int SheetData::rows() {
+	return m_rows;
+}
+
+void SheetData::setRows(int rows) {
+	m_rows = rows;
+	emit rowsChanged();
+}
+
+QStringList SheetData::palette() {
+	return m_palette;
+}
+
+void SheetData::updatePixels(const studio::Context *ctx, QString ngPath, QString palPath) {
+	auto ng = ctx->project->loadObj<NostalgiaGraphic>(ngPath);
+	std::unique_ptr<NostalgiaPalette> npal;
+	if (palPath == "" && ng->defaultPalette.type() == ox::FileAddressType::Path) {
+		palPath = ng->defaultPalette.getPath().value;
+	}
+	try {
+		npal = ctx->project->loadObj<NostalgiaPalette>(palPath);
+		qInfo() << "Opened palette" << palPath;
+	} catch (ox::Error) {
+		qWarning() << "Could not open palette" << palPath;
+	}
+	updatePixels(ng.get(), npal.get());
+}
+
+void SheetData::setSelectedColor(int index) {
+	m_selectedColor = index;
+}
+
 void SheetData::updatePixels(const NostalgiaGraphic *ng, const NostalgiaPalette *npal) {
 	if (!npal) {
 		npal = &ng->pal;
@@ -29,8 +88,8 @@ void SheetData::updatePixels(const NostalgiaGraphic *ng, const NostalgiaPalette
 
 	// load palette
 	for (std::size_t i = 0; i < npal->colors.size(); i++) {
-		auto c = toColor32(npal->colors[i]);
-		auto color = "#" + QString("%1").arg(QString::number(c, 16), 8, '0');
+		const auto c = toQColor(npal->colors[i]);
+		const auto color = c.name(QColor::HexArgb);
 		m_palette.append(color);
 	}
 
@@ -51,21 +110,6 @@ void SheetData::updatePixels(const NostalgiaGraphic *ng, const NostalgiaPalette
 	}
 }
 
-void SheetData::updatePixels(const studio::Context *ctx, QString ngPath, QString palPath) {
-	auto ng = ctx->project->loadObj<NostalgiaGraphic>(ngPath);
-	std::unique_ptr<NostalgiaPalette> npal;
-	if (palPath == "" && ng->defaultPalette.type() == ox::FileAddressType::Path) {
-		palPath = ng->defaultPalette.getPath().value;
-	}
-	try {
-		npal = ctx->project->loadObj<NostalgiaPalette>(palPath);
-		qInfo() << "Opened palette" << palPath;
-	} catch (ox::Error) {
-		qWarning() << "Could not open palette" << palPath;
-	}
-	return updatePixels(ng.get(), npal.get());
-}
-
 
 TileSheetEditor::TileSheetEditor(QString path, const studio::Context *ctx, QWidget *parent): QWidget(parent) {
 	m_ctx = ctx;
@@ -80,6 +124,7 @@ TileSheetEditor::TileSheetEditor(QString path, const studio::Context *ctx, QWidg
 	canvas->rootContext()->setContextProperty("sheetData", &m_sheetData);
 	canvas->setSource(QUrl::fromLocalFile(":/qml/TileSheetEditor.qml"));
 	canvas->setResizeMode(QQuickWidget::SizeRootObjectToView);
+	setColorTable(m_sheetData.palette());
 	restoreState();
 }
 
@@ -92,23 +137,48 @@ QWidget *TileSheetEditor::setupColorPicker(QWidget *parent) {
 	auto lyt = new QVBoxLayout(colorPicker);
 	m_colorPicker.palette = new QComboBox(colorPicker);
 	m_colorPicker.colorTable = new QTableWidget(colorPicker);
+	m_colorPicker.colorTable->setColumnCount(2);
+	m_colorPicker.colorTable->setSelectionBehavior(QAbstractItemView::SelectRows);
+	m_colorPicker.colorTable->setSelectionMode(QAbstractItemView::SingleSelection);
+	m_colorPicker.colorTable->setHorizontalHeaderLabels(QStringList() << tr("Hex Code") << tr("Color"));
+	m_colorPicker.colorTable->horizontalHeader()->setStretchLastSection(true);
+	m_colorPicker.colorTable->verticalHeader()->hide();
+	connect(m_colorPicker.colorTable, &QTableWidget::itemSelectionChanged, this, &TileSheetEditor::colorSelected);
 	lyt->addWidget(m_colorPicker.palette);
 	lyt->addWidget(m_colorPicker.colorTable);
 	return colorPicker;
 }
 
+void TileSheetEditor::setColorTable(QStringList hexColors) {
+	auto tbl = m_colorPicker.colorTable;
+	tbl->setRowCount(hexColors.size());
+	for (int i = 0; i < hexColors.size(); i++) {
+		auto hexCode = new QTableWidgetItem;
+		hexCode->setText(hexColors[i]);
+		hexCode->setFont(QFont("monospace"));
+		tbl->setItem(i, 0, hexCode);
+		auto color = new QTableWidgetItem;
+		color->setBackground(QColor(hexColors[i]));
+		tbl->setItem(i, 1, color);
+	}
+}
+
 void TileSheetEditor::saveState() {
 	QSettings settings(m_ctx->orgName, PluginName);
-	settings.beginGroup("TileSheetEditor/state");
+	settings.beginGroup("TileSheetEditor");
 	settings.setValue("m_splitter/state", m_splitter->saveState());
 	settings.endGroup();
 }
 
 void TileSheetEditor::restoreState() {
 	QSettings settings(m_ctx->orgName, PluginName);
-	settings.beginGroup("TileSheetEditor/state");
+	settings.beginGroup("TileSheetEditor");
 	m_splitter->restoreState(settings.value("m_splitter/state", m_splitter->saveState()).toByteArray());
 	settings.endGroup();
 }
 
+void TileSheetEditor::colorSelected() {
+	m_sheetData.setSelectedColor(m_colorPicker.colorTable->currentRow());
+}
+
 }

src/nostalgia/core/studio/tilesheeteditor.hpp

@@ -12,6 +12,7 @@
 #include <QStringList>
 #include <QStringView>
 #include <QTableWidget>
+#include <QVariant>
 #include <QWidget>
 
 #include <nostalgia/core/gfx.hpp>
@@ -21,20 +22,42 @@ namespace nostalgia::core {
 
 class SheetData: public QObject {
 	Q_OBJECT
+	Q_PROPERTY(int columns READ columns WRITE setColumns NOTIFY columnsChanged)
+	Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowsChanged)
 
 	private:
 		QStringList m_palette;
 		QVector<uint8_t> m_pixels;
+		int m_columns = 2;
+		int m_rows = 2;
+		int m_selectedColor = 0;
 
 	public:
 		Q_INVOKABLE QString pixel(int index);
 
-		void updatePixels(const NostalgiaGraphic *ng, const NostalgiaPalette *npal);
+		Q_INVOKABLE void updatePixels(QVariantList pixels);
+
+		int columns();
+
+		void setColumns(int columns);
+
+		int rows();
+
+		void setRows(int rows);
+
+		QStringList palette();
 
 		void updatePixels(const studio::Context *ctx, QString ngPath, QString palPath = "");
 
+		void setSelectedColor(int index);
+
+	private:
+		void updatePixels(const NostalgiaGraphic *ng, const NostalgiaPalette *npal);
+
 	signals:
-		void refreshTileSheet();
+		void columnsChanged();
+
+		void rowsChanged();
 
 };
 
@@ -59,10 +82,15 @@ class TileSheetEditor: public QWidget {
 	private:
 		QWidget *setupColorPicker(QWidget *widget);
 
+		void setColorTable(QStringList hexColors);
+
 		void saveState();
 
 		void restoreState();
 
+	public slots:
+		void colorSelected();
+
 };
 
 }