Add initial project serialisation/deserialisation.

7 files changed, 223 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 2ef9ae1..15d63d1 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -30,6 +30,7 @@ dgedit_SOURCES = \
 	player.cc \
 	project.cc \
 	projectdialog.cc \
+	projectserialiser.cc \
 	samplesorter.cc \
 	selection.cc \
 	selectioneditor.cc \
@@ -53,6 +54,7 @@ EXTRA_DIST = \
 	player.h \
 	project.h \
 	projectdialog.h \
+	projectserialiser.h \
 	samplesorter.h \
 	selection.h \
 	selectioneditor.h \
diff --git a/src/mainwindow.cc b/src/mainwindow.cc
index ea86b3c..9dabde1 100644
--- a/src/mainwindow.cc
+++ b/src/mainwindow.cc
@@ -26,6 +26,8 @@
  */
 #include "mainwindow.h"
 
+#include <iostream>
+
 #include <QHBoxLayout>
 #include <QVBoxLayout>
 
@@ -52,6 +54,7 @@
 #include "zoomslider.h"
 #include "settings.h"
 #include "projectdialog.h"
+#include "projectserialiser.h"
 
 #define MAXVAL 10000000L
 
@@ -107,6 +110,14 @@ MainWindow::MainWindow(Settings& settings)
 	fileMenu->addAction(act_new_project);
 	connect(act_new_project, SIGNAL(triggered()), this, SLOT(newProject()));
 
+	QAction* act_load_project = new QAction(tr("&Load Project..."), this);
+	fileMenu->addAction(act_load_project);
+	connect(act_load_project, SIGNAL(triggered()), this, SLOT(loadProject()));
+
+	QAction* act_save_project = new QAction(tr("&Save Project..."), this);
+	fileMenu->addAction(act_save_project);
+	connect(act_save_project, SIGNAL(triggered()), this, SLOT(saveProject()));
+
 	QAction* act_quit = new QAction(tr("&Quit"), this);
 	fileMenu->addAction(act_quit);
 	connect(act_quit, SIGNAL(triggered()), this, SLOT(close()));
@@ -457,6 +468,31 @@ void MainWindow::newProject()
 	dlg.exec();
 }
 
+void MainWindow::loadProject()
+{
+	QFile file("test.dgedit");
+	if(!file.open(QIODevice::ReadOnly))
+	{
+		return;
+	}
+
+	QString xml(file.readAll());
+	file.close();
+
+	ProjectSerialiser ser;
+	ser.deserialise(xml, project);
+
+	std::cout << project.getProjectName().toStdString() << std::endl;
+	std::cout << project.getRawFileRoot().toStdString() << std::endl;
+}
+
+void MainWindow::saveProject()
+{
+	ProjectSerialiser ser;
+	auto xml = ser.serialise(project);
+	std::cout << xml.toStdString() << std::endl;
+}
+
 void MainWindow::projectChanged()
 {
 	statusBar()->showMessage(tr("Unsaved"));
diff --git a/src/mainwindow.h b/src/mainwindow.h
index b6c7e98..d1df144 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -69,6 +69,8 @@ public:
 
 public slots:
 	void newProject();
+	void loadProject();
+	void saveProject();
 	void projectChanged();
 	void doExport();
 	void loadFile(QString filename);
diff --git a/src/project.cc b/src/project.cc
index ffa9689..072425c 100644
--- a/src/project.cc
+++ b/src/project.cc
@@ -79,3 +79,10 @@ void Project::setRawFileRoot(const QString& raw_file_root)
 		this->raw_file_root = raw_file_root;
 	}
 }
+
+void Project::reset()
+{
+	RAIIBulkUpdate bulkUpdate(*this);
+	setRawFileRoot("");
+	setProjectName("");
+}
diff --git a/src/project.h b/src/project.h
index 02970c0..306bc17 100644
--- a/src/project.h
+++ b/src/project.h
@@ -60,10 +60,14 @@ public:
 	QString getRawFileRoot() const;
 	void setRawFileRoot(const QString& raw_file_root);
 
+	void reset();
+
 signals:
 	void projectChanged();
 
 private:
+	friend class ProjectSerialiser;
+
 	QString project_name;
 	QString raw_file_root;
 
diff --git a/src/projectserialiser.cc b/src/projectserialiser.cc
new file mode 100644
index 0000000..4b8247f
--- /dev/null
+++ b/src/projectserialiser.cc
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            projectserialiser.cc
+ *
+ *  Sat May 12 10:11:22 CEST 2018
+ *  Copyright 2018 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "projectserialiser.h"
+
+#include <vector>
+#include <iostream>
+
+#include <QDomDocument>
+
+/*
+<?xml version="1.0" encoding="UTF-8"?>
+<dgedit version="1.0">
+	<project_name>MyProject</project_name>
+	<raw_file_root>/some/path</raw_file_root>
+</dgedit>
+*/
+
+class DomHelper
+{
+public:
+	DomHelper(const QDomDocument& doc) : elem(doc.documentElement()) {}
+	DomHelper(const QDomElement& elem) : elem(elem) {}
+
+	DomHelper operator()(const QString& name)
+	{
+		auto node = elem.namedItem(name);
+		if(!node.isElement())
+		{
+			std::cout << "No such child-element: '" << name.toStdString() << "'\n";
+			QDomElement e;
+			return DomHelper(e);
+		}
+
+		return DomHelper(node.toElement());
+	}
+
+	QString operator[](const QString& name)
+	{
+		auto attrs = elem.attributes();
+		auto node = attrs.namedItem(name);
+		if(!node.isAttr())
+		{
+			std::cout << "No such attribute: '" << name.toStdString() << "'\n";
+			return "";
+		}
+		return node.toAttr().value();
+	}
+
+	QString text()
+	{
+		return elem.text();
+	}
+
+	std::vector<DomHelper> children()
+	{
+		std::vector<DomHelper> children;
+		return children;
+	}
+
+private:
+	const QDomElement& elem;
+};
+
+QString ProjectSerialiser::serialise(const Project& project)
+{
+	QDomDocument doc;
+	auto header =
+		doc.createProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
+	doc.appendChild(header);
+
+	auto dgedit = doc.createElement("dgedit");
+	doc.appendChild(dgedit);
+
+	dgedit.setAttribute("version", "1.0");
+
+	auto project_name = doc.createElement("project_name");
+	project_name.appendChild(doc.createTextNode(project.project_name));
+	dgedit.appendChild(project_name);
+
+	auto raw_file_root = doc.createElement("raw_file_root");
+	raw_file_root.appendChild(doc.createTextNode(project.raw_file_root));
+	dgedit.appendChild(raw_file_root);
+
+	return doc.toString();
+}
+
+bool ProjectSerialiser::deserialise(const QString& data, Project& project)
+{
+	QDomDocument doc;
+	if(!doc.setContent(data))
+	{
+		std::cout << "Could not parse XML\n";
+		return false;
+	}
+
+	project.reset();
+	DomHelper dom(doc);
+
+	QString version = dom["version"];
+	if(version != "1.0")
+	{
+		std::cout << "Bad version: '" << version.toStdString() << "'\n";
+		return false;
+	}
+
+	project.project_name = dom("project_name").text();
+	project.raw_file_root = dom("raw_file_root").text();
+
+	return true;
+}
diff --git a/src/projectserialiser.h b/src/projectserialiser.h
new file mode 100644
index 0000000..c4d5931
--- /dev/null
+++ b/src/projectserialiser.h
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            projectserialiser.h
+ *
+ *  Sat May 12 10:11:22 CEST 2018
+ *  Copyright 2018 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#pragma once
+
+#include <QString>
+
+#include "project.h"
+
+class ProjectSerialiser
+{
+public:
+	QString serialise(const Project& project);
+	bool deserialise(const QString& data, Project& project);
+};