GBA: Cheat saving

src/gba/cheats.c

@@ -695,6 +695,7 @@ bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
 	struct GBACheatSet* newSet;
 	int gsaVersion = 0;
 	bool nextDisabled = false;
+	bool reset = false;
 	while (true) {
 		size_t i = 0;
 		ssize_t bytesRead = vf->readline(vf, cheat, sizeof(cheat));
@@ -718,6 +719,8 @@ bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
 			nextDisabled = false;
 			if (set) {
 				GBACheatAddSet(device, set);
+			}
+			if (set && !reset) {
 				newSet->gsaVersion = set->gsaVersion;
 				memcpy(newSet->gsaSeeds, set->gsaSeeds, sizeof(newSet->gsaSeeds));
 				if (set->hook) {
@@ -727,6 +730,7 @@ bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
 			} else {
 				_setGameSharkVersion(newSet, gsaVersion);
 			}
+			reset = false;
 			set = newSet;
 			break;
 		case '!':
@@ -742,6 +746,10 @@ bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
 				nextDisabled = true;
 				break;
 			}
+			if (strcasecmp(&cheat[i], "reset") == 0) {
+				reset = true;
+				break;
+			}
 			break;
 		default:
 			if (!set) {
@@ -761,6 +769,54 @@ bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
 	return true;
 }
 
+bool GBACheatSaveFile(struct GBACheatDevice* device, struct VFile* vf) {
+	static const char lineStart[3] = "# ";
+	static const char lineEnd = '\n';
+
+	struct GBACheatHook* lastHook = 0;
+
+	size_t i;
+	for (i = 0; i < GBACheatSetsSize(&device->cheats); ++i) {
+		struct GBACheatSet* set = *GBACheatSetsGetPointer(&device->cheats, i);
+		if (lastHook && set->hook != lastHook) {
+			static const char* resetDirective = "!reset\n";
+			vf->write(vf, resetDirective, strlen(resetDirective));
+		}
+		switch (set->gsaVersion) {
+		case 1: {
+			static const char* versionDirective = "!GSAv1\n";
+			vf->write(vf, versionDirective, strlen(versionDirective));
+			break;
+		}
+		case 3: {
+			static const char* versionDirective = "!PARv3\n";
+			vf->write(vf, versionDirective, strlen(versionDirective));
+			break;
+		}
+		default:
+			break;
+		}
+		lastHook = set->hook;
+		if (!set->enabled) {
+			static const char* disabledDirective = "!disabled\n";
+			vf->write(vf, disabledDirective, strlen(disabledDirective));
+		}
+
+		vf->write(vf, lineStart, 2);
+		if (set->name) {
+			vf->write(vf, set->name, strlen(set->name));
+		}
+		vf->write(vf, &lineEnd, 1);
+		size_t c;
+		for (c = 0; c < StringListSize(&set->lines); ++c) {
+			const char* line = *StringListGetPointer(&set->lines, c);
+			vf->write(vf, line, strlen(line));
+			vf->write(vf, &lineEnd, 1);
+		}
+	}
+	return true;
+}
+
 bool GBACheatAddLine(struct GBACheatSet* cheats, const char* line) {
 	uint32_t op1;
 	uint16_t op2;

src/gba/cheats.h

@@ -199,6 +199,8 @@ bool GBACheatAddAutodetect(struct GBACheatSet*, uint32_t op1, uint32_t op2);
 bool GBACheatAddAutodetectLine(struct GBACheatSet*, const char* line);
 
 bool GBACheatParseFile(struct GBACheatDevice*, struct VFile*);
+bool GBACheatSaveFile(struct GBACheatDevice*, struct VFile*);
+
 bool GBACheatAddLine(struct GBACheatSet*, const char* line);
 
 void GBACheatRefresh(struct GBACheatDevice*, struct GBACheatSet*);

src/platform/qt/CheatsModel.cpp

@@ -176,6 +176,15 @@ void CheatsModel::loadFile(const QString& path) {
 	vf->close(vf);
 }
 
+void CheatsModel::saveFile(const QString& path) {
+	VFile* vf = VFileOpen(path.toLocal8Bit().constData(), O_TRUNC | O_CREAT | O_WRONLY);
+	if (!vf) {
+		return;
+	}
+	GBACheatSaveFile(m_device, vf);
+	vf->close(vf);
+}
+
 void CheatsModel::addSet(GBACheatSet* set) {
 	beginInsertRows(QModelIndex(), GBACheatSetsSize(&m_device->cheats), GBACheatSetsSize(&m_device->cheats));
 	GBACheatAddSet(m_device, set);

src/platform/qt/CheatsModel.h

@@ -36,6 +36,8 @@ public:
 	void endAppendRow();
 
 	void loadFile(const QString& path);
+	void saveFile(const QString& path);
+
 	void addSet(GBACheatSet* set);
 
 public slots:

src/platform/qt/CheatsView.cpp

@@ -25,6 +25,7 @@ CheatsView::CheatsView(GameController* controller, QWidget* parent)
 	m_ui.cheatList->setModel(&m_model);
 
 	connect(m_ui.load, SIGNAL(clicked()), this, SLOT(load()));
+	connect(m_ui.save, SIGNAL(clicked()), this, SLOT(save()));
 	connect(m_ui.addSet, SIGNAL(clicked()), this, SLOT(addSet()));
 	connect(m_ui.remove, SIGNAL(clicked()), this, SLOT(removeSet()));
 	connect(controller, SIGNAL(gameStopped(GBAThread*)), &m_model, SLOT(invalidated()));
@@ -49,6 +50,13 @@ void CheatsView::load() {
 	}
 }
 
+void CheatsView::save() {
+	QString filename = QFileDialog::getSaveFileName(this, tr("Select cheats file"));
+	if (!filename.isEmpty()) {
+		m_model.saveFile(filename);
+	}
+}
+
 void CheatsView::addSet() {
 	GBACheatSet* set = new GBACheatSet;
 	GBACheatSetInit(set, nullptr);

src/platform/qt/CheatsView.h

@@ -28,6 +28,7 @@ public:
 
 private slots:
 	void load();
+	void save();
 	void addSet();
 	void removeSet();
 

src/platform/qt/CheatsView.ui

@@ -68,9 +68,6 @@
    </item>
    <item row="1" column="2">
     <widget class="QPushButton" name="save">
-     <property name="enabled">
-      <bool>false</bool>
-     </property>
      <property name="text">
       <string>Save</string>
      </property>