Diff: SoundScreen.h

Revision:

0:da2b8c7a1ec1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SoundScreen.h	Mon May 11 15:25:52 2015 +0000
@@ -0,0 +1,217 @@
+/**
+@file SoundScreen.h
+
+*/
+
+#ifndef SOUNDSCREEN_H
+#define SOUNDSCREEN_H
+
+#include "SettingController.h"
+#include "Inputs.h"
+#include "Outputs.h"
+#include "ConfigFile.h"
+
+/**
+@brief Shows the current sound setting of the buzzer\n
+@brief Consists of a Setting Controller\n
+@brief Sound can be set On or Off\n
+@brief the setting is persistent i.e saved onto onboard flash memory\n
+@author Augustine K Kizito
+@date April 2015
+*/
+
+
+
+class SoundScreen: public SettingController // inherit SettingController class
+{
+private:
+    bool changeScreen; // tracks if the user pressed a button that changes the screen
+    char *soundKey; // key to be used for the cfg file
+    char soundValue[BUFSIZ]; // buffer to store the brightness value retrieved from cfg file
+    int sound; // the brightness stored as an int
+
+    void onScrollUp(); // user pressed the scroll up button
+    void onScrollDown(); // user pressed the scroll down button
+    void onEnter(); // user pressed the enter button
+    void onBack(); // user pressed the back button
+    void saveSetting(); // save a selected option as a setting
+    void adjustSound(); //adjust brightness according to the stored setting
+
+public:
+    /**
+    Creates an instance of the Sound Screen
+    
+    */
+    SoundScreen()
+        :SettingController( "Sound Fx", // Title
+                            "On", // Option 1
+                            "Off", // Option 2
+                            "",
+                            "",
+                            2) // Number of Options
+    {};
+    /**
+    Manages the execution of the Sound Screen
+    
+    @returns
+     
+     -1 - Navigate to previous screen
+     
+    */
+    int start();
+
+};
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+int SoundScreen::start()
+{
+
+    enterButton.mode(PullDown); // activate pull down resistor
+    upButton.mode(PullDown); // activate pull down resistor
+    downButton.mode(PullDown); // acivate pull down resistor
+    backButton.mode(PullDown); // activate pull down resistor
+
+    upButton.rise(this,&SoundScreen::onScrollUp); // call onScrollUp when the up button is pressed
+    downButton.rise(this,&SoundScreen::onScrollDown); // call onScrollDown when the down button is pressed
+    enterButton.rise(this,&SoundScreen::onEnter); // call onEnter when the enter button is pressed
+    backButton.rise(this, &SoundScreen::onBack);
+
+    debounce.start(); // start the debounce timer
+
+    soundKey = "sound      ";
+    cfg.read("/local/sound.cfg"); // prepare the cfg file to be read
+
+    // if key aand value exist, retrieve and store
+    if (cfg.getValue(soundKey, &soundValue[0], sizeof(soundValue))) { // if key aand value exist, retrieve and store
+
+        sound = atoi(soundValue); // convert string to integer
+
+        // set the ListController setting appropriateley
+        if (sound == 1) {
+            SettingController::setCurrentSetting(0);
+        } else {
+            SettingController::setCurrentSetting(1);
+        }
+    }
+
+    adjustSound(); // adjust brightness apprpriately
+    SettingController::showInfo(); //populate the settingController
+    changeScreen = false; // stay on this screen until further notice
+
+    while(!changeScreen) {
+        // mbed goes to sleep to save power
+        Sleep();
+    }
+
+    // detach all interrupts
+    enterButton.rise(NULL);
+    backButton.rise(NULL);
+
+    return -1; // go to the previous screen
+
+}
+
+void SoundScreen::onEnter()
+{
+    if (debounceSuccess()) { // debouncing successful
+
+        // save the setting
+        saveSetting();
+
+        //change the setting marker on the screen accordingly
+        SettingController::changeSetting();
+
+        //adjust the sound accordingly
+        adjustSound();
+
+        playSound();
+        // reset the debounce timer
+        debounce.reset();
+    }
+
+}
+
+void SoundScreen::onBack()
+{
+    if(debounceSuccess()) { // debounce successful
+        // play the sound
+        playSound();
+        changeScreen = true; // user wants to change screen
+        // reset the debounce timer
+        debounce.reset();
+
+    }
+
+
+}
+
+void SoundScreen::onScrollDown()
+{
+    if (debounceSuccess()) { // debouncing successful
+        SettingController::scrollDown(); //scroll Up
+        debounce.reset(); // reset the debounce timer
+    }
+
+}
+
+void SoundScreen::onScrollUp()
+{
+    if (debounceSuccess()) { // debouncing was successful
+        SettingController::scrollUp(); //scroll Down
+        debounce.reset(); // reset the debounce timer
+    }
+
+}
+
+void SoundScreen::saveSetting()
+{
+    // retrieve the current option
+    int currentOption = SettingController::getCurrentOption();
+
+    if ( currentOption == 0) {
+        cfg.setValue(soundKey,"1");  //On
+    } else if ( currentOption == 1) {
+        cfg.setValue(soundKey,"0");  //Off
+    } else {
+        // do nothing
+    }
+
+    // write to the cfg file
+    cfg.write("/local/sound.cfg");
+}
+
+void SoundScreen::adjustSound()
+{
+
+    // retireve currentSetting
+    int currentSetting = SettingController::getCurrentSetting();
+
+    if ( currentSetting == 0) {  // On
+        soundFx = true;
+    } else if ( currentSetting == 1) { // Off
+        soundFx = false;
+    } else {
+        // do nothing
+    }
+
+}
+
+#endif