Introduce android specific file

This contains a first stab at Subsurface platform interfacing code for
Android, and surrounding parts.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

android.cpp

@@ -0,0 +1,81 @@
+/* implements Android specific functions */
+#include "dive.h"
+#include "display.h"
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+
+#include <QtAndroidExtras/QtAndroidExtras>
+#include <QtAndroidExtras/QAndroidJniObject>
+
+extern "C" {
+
+const char system_divelist_default_font[] = "Roboto";
+const int system_divelist_default_font_size = 8;
+
+const char *system_default_filename(void)
+{
+	/* Replace this when QtCore/QStandardPaths getExternalStorageDirectory landed */
+	QAndroidJniObject externalStorage = QAndroidJniObject::callStaticObjectMethod("android/os/Environment", "getExternalStorageDirectory", "()Ljava/io/File;");
+	QAndroidJniObject externalStorageAbsolute = externalStorage.callObjectMethod( "getAbsolutePath", "()Ljava/lang/String;" );
+	QString system_default_filename = externalStorageAbsolute.toString()+"/subsurface.xml";
+	QAndroidJniEnvironment env;
+	if (env->ExceptionCheck()) {
+		// FIXME: Handle exception here.
+		env->ExceptionClear();
+		return strdup("/sdcard/subsurface.xml");
+	}
+	return strdup(system_default_filename.toUtf8().data());
+}
+
+int enumerate_devices (device_callback_t callback, void *userdata)
+{
+	/* FIXME: we need to enumerate in some other way on android */
+	/* qtserialport maybee? */
+	return -1;
+}
+
+/* NOP wrappers to comform with windows.c */
+int subsurface_rename(const char *path, const char *newpath)
+{
+	return rename(path, newpath);
+}
+
+int subsurface_open(const char *path, int oflags, mode_t mode)
+{
+	return open(path, oflags, mode);
+}
+
+FILE *subsurface_fopen(const char *path, const char *mode)
+{
+	return fopen(path, mode);
+}
+
+void *subsurface_opendir(const char *path)
+{
+	return (void *)opendir(path);
+}
+
+struct zip *subsurface_zip_open_readonly(const char *path, int flags, int *errorp)
+{
+	return zip_open(path, flags, errorp);
+}
+
+int subsurface_zip_close(struct zip *zip)
+{
+	return zip_close(zip);
+}
+
+/* win32 console */
+void subsurface_console_init(bool dedicated)
+{
+	/* NOP */
+}
+
+void subsurface_console_exit(void)
+{
+	/* NOP */
+}
+
+}

subsurface-install.pri

@@ -120,6 +120,9 @@ mac {
 		QMAKE_EXTRA_TARGETS = installer nsis
 		install.depends += dlls
 	}
+} else: android {
+	# Android install rules
+	QMAKE_BUNDLE_DATA += translation qttranslation
 } else {
 	# Linux install rules
 	# On Linux, we can count on packagers doing the right thing

subsurface.pro

@@ -4,7 +4,8 @@ QT = core gui network svg
 lessThan(QT_MAJOR_VERSION, 5) {
 	QT += webkit
 } else {
-	QT += webkitwidgets
+	!android: QT += webkitwidgets
+	android: QT += androidextras
 }
 INCLUDEPATH += qt-ui $$PWD
 DEPENDPATH += qt-ui
@@ -140,7 +141,8 @@ SOURCES =  \
 	qt-ui/profile/divetooltipitem.cpp \
 	qt-ui/profile/ruleritem.cpp
 
-linux*: SOURCES += linux.c
+android: SOURCES += android.cpp
+else: linux*: SOURCES += linux.c
 mac: SOURCES += macos.c
 win32: SOURCES += windows.c