Merge branch 'develop' of https://github.com/Drayshak/MultiMC5 into develop

7 files changed, 202 insertions, 14 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ecfb690..a02a4b27 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,9 @@
 cmake_minimum_required(VERSION 2.8.9)
 
-# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
-cmake_policy(SET CMP0020 OLD)
+IF(WIN32)
+	# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
+	cmake_policy(SET CMP0020 OLD)
+ENDIF()
 
 project(MultiMC)
 
@@ -308,6 +310,9 @@ logic/tasks/ProgressProvider.h
 logic/tasks/Task.h
 logic/tasks/Task.cpp
 
+# Utilities
+logic/JavaUtils.h
+logic/JavaUtils.cpp
 
 )
 
diff --git a/depends/pack200/CMakeLists.txt b/depends/pack200/CMakeLists.txt
index d71f6535..386c8bb8 100644
--- a/depends/pack200/CMakeLists.txt
+++ b/depends/pack200/CMakeLists.txt
@@ -1,7 +1,9 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 
-# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
-cmake_policy(SET CMP0020 OLD)
+IF(WIN32)
+	# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
+	cmake_policy(SET CMP0020 OLD)
+ENDIF()
 
 project(unpack200)
 
diff --git a/gui/settingsdialog.cpp b/gui/settingsdialog.cpp
index 31fe2d96..c6fe893d 100644
--- a/gui/settingsdialog.cpp
+++ b/gui/settingsdialog.cpp
@@ -13,10 +13,11 @@
  * limitations under the License.
  */
 
+#include <MultiMC.h>
 #include "settingsdialog.h"
 #include "ui_settingsdialog.h"
+#include "logic/JavaUtils.h"
 
-#include <MultiMC.h>
 #include <settingsobject.h>
 #include <QFileDialog>
 #include <QMessageBox>
@@ -180,3 +181,20 @@ void SettingsDialog::loadSettings(SettingsObject *s)
 	ui->preLaunchCmdTextBox->setText(s->get("PreLaunchCommand").toString());
 	ui->postExitCmdTextBox->setText(s->get("PostExitCommand").toString());
 }
+
+void SettingsDialog::on_pushButton_clicked()
+{
+	JavaUtils jut;
+	QStringList paths = jut.FindJavaPath();
+
+	ui->javaPathTextBox->setText(paths.at(0));
+}
+
+void SettingsDialog::on_btnBrowse_clicked()
+{
+	QString dir = QFileDialog::getOpenFileName(this, tr("Find Java executable"));
+	if(!dir.isNull())
+	{
+		ui->javaPathTextBox->setText(dir);
+	}
+}
diff --git a/gui/settingsdialog.h b/gui/settingsdialog.h
index b0a8c673..a8dfb1c6 100644
--- a/gui/settingsdialog.h
+++ b/gui/settingsdialog.h
@@ -53,6 +53,10 @@ private slots:
 	
 	void on_buttonBox_accepted();
 	
+	void on_pushButton_clicked();
+
+	void on_btnBrowse_clicked();
+
 private:
 	Ui::SettingsDialog *ui;
 };
diff --git a/gui/settingsdialog.ui b/gui/settingsdialog.ui
index 0d30e301..d7a134fb 100644
--- a/gui/settingsdialog.ui
+++ b/gui/settingsdialog.ui
@@ -33,7 +33,7 @@
       <enum>QTabWidget::Rounded</enum>
      </property>
      <property name="currentIndex">
-      <number>0</number>
+      <number>2</number>
      </property>
      <widget class="QWidget" name="generalTab">
       <attribute name="title">
@@ -379,26 +379,45 @@
             </property>
            </widget>
           </item>
-          <item row="0" column="1">
-           <widget class="QLineEdit" name="javaPathTextBox"/>
-          </item>
-          <item row="1" column="0">
+          <item row="2" column="0">
            <widget class="QLabel" name="labelJVMArgs">
             <property name="text">
              <string>JVM arguments:</string>
             </property>
            </widget>
           </item>
-          <item row="0" column="2">
-           <widget class="QPushButton" name="pushButton">
+          <item row="1" column="3">
+           <widget class="QPushButton" name="btnBrowse">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
             <property name="text">
-             <string>Auto-detect</string>
+             <string>Browse...</string>
             </property>
            </widget>
           </item>
-          <item row="1" column="1" colspan="2">
+          <item row="0" column="1" colspan="3">
+           <widget class="QLineEdit" name="javaPathTextBox"/>
+          </item>
+          <item row="2" column="1" colspan="3">
            <widget class="QLineEdit" name="jvmArgsTextBox"/>
           </item>
+          <item row="1" column="2">
+           <widget class="QPushButton" name="pushButton">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="text">
+             <string>Auto-detect</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </widget>
        </item>
diff --git a/logic/JavaUtils.cpp b/logic/JavaUtils.cpp
new file mode 100644
index 00000000..d89ab9c5
--- /dev/null
+++ b/logic/JavaUtils.cpp
@@ -0,0 +1,114 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "JavaUtils.h"
+#include "osutils.h"
+#include "pathutils.h"
+
+#include <QStringList>
+#include <QString>
+#include <QDir>
+#include <QDebug>
+
+#if WINDOWS
+#include <windows.h>
+
+#endif
+
+JavaUtils::JavaUtils()
+{
+
+}
+
+#if WINDOWS
+QStringList JavaUtils::FindJavaPath()
+{
+	QStringList paths;
+
+	HKEY jreKey;
+	QString jreKeyName = "SOFTWARE\\JavaSoft\\Java Runtime Environment";
+	if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, jreKeyName.toStdString().c_str(), 0, KEY_READ | KEY_WOW64_64KEY, &jreKey) == ERROR_SUCCESS)
+	{
+		// Read the current JRE version from the registry.
+		// This will be used to find the key that contains the JavaHome value.
+		char *value = new char[0];
+		DWORD valueSz = 0;
+		if (RegQueryValueExA(jreKey, "CurrentVersion", NULL, NULL, (BYTE*)value, &valueSz) == ERROR_MORE_DATA)
+		{
+			value = new char[valueSz];
+			RegQueryValueExA(jreKey, "CurrentVersion", NULL, NULL, (BYTE*)value, &valueSz);
+		}
+
+		RegCloseKey(jreKey);
+
+		// Now open the registry key for the JRE version that we just got.
+		jreKeyName.append("\\").append(value);
+		if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, jreKeyName.toStdString().c_str(), 0, KEY_READ | KEY_WOW64_64KEY, &jreKey) == ERROR_SUCCESS)
+		{
+			// Read the JavaHome value to find where Java is installed.
+			value = new char[0];
+			valueSz = 0;
+			if (RegQueryValueExA(jreKey, "JavaHome", NULL, NULL, (BYTE*)value, &valueSz) == ERROR_MORE_DATA)
+			{
+				value = new char[valueSz];
+				RegQueryValueExA(jreKey, "JavaHome", NULL, NULL, (BYTE*)value, &valueSz);
+
+				paths << QDir(PathCombine(value, "bin")).absoluteFilePath("java.exe");
+			}
+
+			RegCloseKey(jreKey);
+		}
+	}
+
+	if(paths.length() <= 0)
+	{
+		qWarning() << "Failed to find Java in the Windows registry - defaulting to \"java\"";
+		paths << "java";
+	}
+
+	return paths;
+}
+#elif OSX
+QStringList JavaUtils::FindJavaPath()
+{
+	qWarning() << "OS X Java detection incomplete - defaulting to \"java\"";
+
+	QStringList paths;
+	paths << "java";
+
+	return paths;
+}
+
+#elif LINUX
+QStringList JavaUtils::FindJavaPath()
+{
+	qWarning() << "Linux Java detection incomplete - defaulting to \"java\"";
+
+	QStringList paths;
+	paths << "java";
+
+	return paths;
+}
+#else
+QStringList JavaUtils::FindJavaPath()
+{
+	qWarning() << "Unknown operating system build - defaulting to \"java\"";
+
+	QStringList paths;
+	paths << "java";
+
+	return paths;
+}
+#endif
diff --git a/logic/JavaUtils.h b/logic/JavaUtils.h
new file mode 100644
index 00000000..fef2a1bf
--- /dev/null
+++ b/logic/JavaUtils.h
@@ -0,0 +1,26 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QStringList>
+
+class JavaUtils
+{
+public:
+	JavaUtils();
+
+	QStringList FindJavaPath();
+};