abstract Device to support multiple device types

src/Device.cpp

@@ -0,0 +1,43 @@
+/* 
+ * Copyright (c) 2008 Sean C. Rhea (srhea@srhea.net)
+ *
+ * This program 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.
+ * 
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "Device.h"
+
+static QMap<QString,Device*> devices;
+
+QList<QString>
+Device::deviceTypes()
+{
+    return devices.keys();
+}
+
+Device &
+Device::device(const QString &deviceType)
+{
+    assert(devices.contains(deviceType));
+    return *devices.value(deviceType);
+}
+
+bool
+Device::addDevice(const QString &deviceType, Device *device)
+{
+    assert(!devices.contains(deviceType));
+    devices.insert(deviceType, device);
+    return true;
+}
+ 

src/Device.h

@@ -0,0 +1,41 @@
+/* 
+ * Copyright (c) 2008 Sean C. Rhea (srhea@srhea.net)
+ *
+ * This program 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.
+ * 
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _GC_Device_h
+#define _GC_Device_h 1
+
+#include "CommPort.h"
+#include <boost/function.hpp>
+
+struct Device
+{
+    virtual ~Device() {}
+
+    typedef boost::function<bool (const QString &statusText)> StatusCallback;
+
+    virtual bool download(CommPortPtr dev, const QDir &tmpdir,
+                          QString &tmpname, QString &filename,
+                          StatusCallback statusCallback, QString &err) = 0;
+
+    static QList<QString> deviceTypes();
+    static Device &device(const QString &deviceType);
+    static bool addDevice(const QString &deviceType, Device *device);
+};
+ 
+#endif // _GC_Device_h
+

src/DownloadRideDialog.cpp

@@ -19,8 +19,8 @@
  */
 
 #include "DownloadRideDialog.h"
+#include "Device.h"
 #include "MainWindow.h"
-#include "PowerTapDevice.h"
 #include <assert.h>
 #include <errno.h>
 #include <QtGui>
@@ -139,7 +139,8 @@ DownloadRideDialog::downloadClicked()
     assert(dev);
     QString err;
     QString tmpname, filename;
-    if (!PowerTapDevice::download(
+    Device &device = Device::device("PowerTap");
+    if (!device.download(
             dev, home, tmpname, filename,
             boost::bind(&DownloadRideDialog::statusCallback, this, _1), err))
     {

src/PowerTapDevice.cpp

@@ -22,6 +22,9 @@
 
 #define PT_DEBUG false
 
+static bool powerTapRegistered =
+    Device::addDevice("PowerTap", new PowerTapDevice());
+
 static bool
 hasNewline(const char *buf, int len)
 {

src/PowerTapDevice.h

@@ -20,15 +20,13 @@
 #define _GC_PowerTapDevice_h 1
 
 #include "CommPort.h"
-#include <boost/function.hpp>
+#include "Device.h"
 
-struct PowerTapDevice
+struct PowerTapDevice : public Device
 {
-    typedef boost::function<bool (const QString &statusText)> StatusCallback;
-
-    static bool download(CommPortPtr dev, const QDir &tmpdir,
-                         QString &tmpname, QString &filename,
-                         StatusCallback statusCallback, QString &err);
+    virtual bool download(CommPortPtr dev, const QDir &tmpdir,
+                          QString &tmpname, QString &filename,
+                          StatusCallback statusCallback, QString &err);
 };
  
 #endif // _GC_PowerTapDevice_h

src/src.pro

@@ -30,6 +30,7 @@ HEADERS += \
         CpintPlot.h \
         CsvRideFile.h \
         DBAccess.h \
+        Device.h \
         DownloadRideDialog.h \
         MainWindow.h \
         PfPvPlot.h \
@@ -73,6 +74,7 @@ SOURCES += \
         CpintPlot.cpp \
         CsvRideFile.cpp \
         DBAccess.cpp \
+        Device.cpp \
         DownloadRideDialog.cpp \
         MainWindow.cpp \
         PfPvPlot.cpp \