Only show save option if "kernel-config" is installed

[qcpufreq] / src / mainwindow.cpp

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 168e513..fa0cd97 100644 (file)
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -28,7 +28,8 @@
 #endif
 
 #define APPNAME "QCPUFreq"
-#define APPVERSION "0.3.99"
+#define APPVERSION "0.4.0"
+
 
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent),
@@ -40,9 +41,7 @@ MainWindow::MainWindow(QWidget *parent) :
     //create UI refresh timer
     refreshTimer( this ),
     //create a QGraphicsScene for the little chip icon
-    scene( this ),
-    //the settings widget
-    settings(this)
+    scene( this )
 {
     //this is a stacked window on Maemo 5
     #if defined(Q_WS_MAEMO_5)
@@ -51,11 +50,14 @@ MainWindow::MainWindow(QWidget *parent) :
 
     ui->setupUi(this);
 
+    //Settings widget
+    settings = new Settings;
+    settings->hide();
+
     init();
-    refresh();
 
-    // setup auto rotation
-    setAutoRotation();
+    //applies the settings from the settings dialog
+    applySettings();
 
     //initialize orientation
     orientationChanged();
@@ -69,9 +71,6 @@ MainWindow::MainWindow(QWidget *parent) :
     #endif
     helpWindow.setWindowFlags( windowFlags() | Qt::Window );
 
-    //Settings widget
-    settings.hide();
-
     //show errors about the sudo setup only once
     showSudoError = true;
 
@@ -82,12 +81,15 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(QApplication::desktop(), SIGNAL(resized(int)), this, SLOT(orientationChanged()));
     connect(ui->sr_box, SIGNAL(clicked()), this, SLOT(setSmartReflex()));
     connect(&refreshTimer, SIGNAL(timeout()), this, SLOT(refresh()));
+    connect(ui->actionSave, SIGNAL(triggered()), this, SLOT(save()));
     connect(ui->actionSettings, SIGNAL(triggered()), this, SLOT(showSettings()));
+    connect(settings, SIGNAL(settingsChanged()), this, SLOT(applySettings()));
 
 }
 
 MainWindow::~MainWindow()
 {
+    delete settings;
     delete ui;
 }
 
@@ -124,13 +126,19 @@ void MainWindow::adjustFreq()
 
     //check for overclocking
     #if defined(Q_WS_MAEMO_5)
-    if (!settings.useOverclocking() && newmax > 600000) {
+    if (!settings->useOverclocking() && newmax > 600000) {
         QMaemo5InformationBox::information(this, tr( "You need to enable overclocking in QCPUFreq's settings in order to set frequencies above 600MHz!"), 0);
         refresh();
         return;
     }
     #endif
 
+    //check for 599MHz <-> 600MHz problem on power kernels
+    if (max == "600000" && settings->usePowerKernel()) {
+        //we really need to set the maximum to 599MHz
+        max = "599000";
+    }
+
     callHelper( "set_maxfreq", max );
 
     refresh();
@@ -138,6 +146,19 @@ void MainWindow::adjustFreq()
 
 
 /**
+  * SLOT: applies the settings from the Settings dialog.
+  */
+void MainWindow::applySettings()
+{
+    setAutoRotation();
+    setAdvancedTemperature();
+
+    //refresh the GUI after applying the settings
+    refresh();
+}
+
+
+/**
   * Calls the QCPUFreq helper script with "sudo action param"
   *
   * @param  action : the action of the helper script
@@ -335,6 +356,16 @@ void MainWindow::init()
     } else {
         this->minFreq = min.toInt();
     }
+
+    //enable save option on power kernels
+    if (settings->usePowerKernel()) {
+        //only enable save if /usr/sbin/kernel-config is present
+        file.close();
+        file.setFileName("/usr/sbin/kernel-config");
+        if (file.exists()) {
+            ui->actionSave->setEnabled(true);
+        }
+    }
 }
 
 
@@ -433,12 +464,37 @@ void MainWindow::orientationChanged()
 
 
 /**
+  * Saves the current maximim frequency as default (only on power kernel).
+  */
+void MainWindow::save()
+{
+    if (settings->usePowerKernel()) {
+        callHelper( "save", "null" );
+        #if defined(Q_WS_MAEMO_5)
+            QMaemo5InformationBox::information(this, tr( "The current frequency settings have been saved as default." ), QMaemo5InformationBox::DefaultTimeout);
+        #endif
+    }
+}
+
+
+/**
+  * Checks the settings if the "bq27x00_battery" needs to be loaded.
+  */
+void MainWindow::setAdvancedTemperature()
+{
+    if (settings->usePowerKernel() && settings->useAdvancedTemperature()) {
+       callHelper( "load_bq27", "null" );
+    }
+}
+
+
+/**
   * Enables or disables the auto-rotation feature of Maemo5 devices.
   */
 void MainWindow::setAutoRotation()
 {
 #if defined(Q_WS_MAEMO_5)
-    setAttribute(Qt::WA_Maemo5AutoOrientation, settings.useAutoRotate());
+    setAttribute(Qt::WA_Maemo5AutoOrientation, settings->useAutoRotate());
 #endif
 }
 
@@ -477,8 +533,8 @@ void MainWindow::showHelp()
   */
 void MainWindow::showSettings()
 {
-    settings.reset();
-    settings.show();
+    settings->reset();
+    settings->show();
 }