Add the printer simulator draft.

app/src/main/cpp/android-layer.c

@@ -28,9 +28,7 @@ VOID ResetUdp(VOID) {
 }
 
 BOOL SendByteUdp(BYTE byData) {
-
+    sendByteUdp(byData);
-    LOGD("SendByteUdp(%d -> 0x%02x -> '%c')", byData, byData, byData);
-
     return FALSE;
 }
 

app/src/main/cpp/emu-jni.c

@@ -253,6 +253,17 @@ void performHapticFeedback() {
     }
 }
 
+void sendByteUdp(unsigned char byteSent) {
+    JNIEnv *jniEnv = getJNIEnvironment();
+    if(jniEnv) {
+        jclass mainActivityClass = (*jniEnv)->GetObjectClass(jniEnv, mainActivity);
+        if(mainActivityClass) {
+            jmethodID midStr = (*jniEnv)->GetMethodID(jniEnv, mainActivityClass, "sendByteUdp", "(I)V");
+            (*jniEnv)->CallVoidMethod(jniEnv, mainActivity, midStr, (int)byteSent);
+            (*jniEnv)->DeleteLocalRef(jniEnv, mainActivityClass);
+        }
+    }
+}
 
 JNIEXPORT void JNICALL Java_org_emulator_forty_eight_NativeLib_start(JNIEnv *env, jobject thisz, jobject assetMgr, jobject bitmapMainScreen0, jobject activity, jobject view) {
 

app/src/main/cpp/win32-layer.h

@@ -1255,5 +1255,6 @@ BOOL getFirstKMLFilenameForType(BYTE chipsetType, TCHAR * firstKMLFilename, size
 void clipboardCopyText(const TCHAR * text);
 const TCHAR * clipboardPasteText();
 void performHapticFeedback();
+void sendByteUdp(unsigned char byteSent);
 
 typedef int SOCKET;

app/src/main/java/org/emulator/forty/eight/MainActivity.java

@@ -100,6 +100,8 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         }
     };
 
+    private PrinterSimulator printer = new PrinterSimulator();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -325,6 +327,8 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
             OnBackupDelete();
         } else if (id == R.id.nav_change_kml_script) {
             OnViewScript();
+        } else if (id == R.id.nav_show_printer) {
+            OnViewPrinter();
         } else if (id == R.id.nav_create_ram_card) {
             OnCreateRAMCard();
         } else if (id == R.id.nav_help) {
@@ -783,6 +787,17 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         showKMLPicker(true);
     }
 
+    private void OnViewPrinter() {
+        String printerText = printer.getText();
+        new AlertDialog.Builder(this)
+                .setTitle(getString(R.string.message_printer))
+                .setMessage(printerText)
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                    }
+                }).show();
+    }
+
     private void showKMLPicker(final boolean changeKML) {
         extractKMLScripts();
 
@@ -1327,6 +1342,10 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
             mainScreenView.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY, HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
     }
 
+    void sendByteUdp(int byteSent) {
+        printer.write(byteSent);
+    }
+
     private void setPort1Settings(boolean port1Plugged, boolean port1Writable) {
         SharedPreferences.Editor editor = sharedPreferences.edit();
         editor.putBoolean("settings_port1en", port1Plugged);

app/src/main/java/org/emulator/forty/eight/PrinterSimulator.java

@@ -0,0 +1,147 @@
+package org.emulator.forty.eight;
+
+import java.util.ArrayList;
+
+/*
+ * Based on the free HP82240B Printer Simulator by Christoph Giesselink
+ */
+public class PrinterSimulator {
+
+    private ArrayList<Integer> data = new ArrayList<>();
+    private StringBuilder m_Text = new StringBuilder("");
+
+
+    private final int ESC = 27;							// ESC
+
+    private final byte PM_HP82240A = 0;
+    private final byte PM_HP82240B = 1;
+    private final byte PM_GenericSerial = 2;
+
+    private byte m_ePrinterModel;// selected printer model
+    private boolean m_bExpChar; // printing expanded characters
+    private boolean m_bUnderLined; // printing underlined characters
+    private boolean m_bEcma94; // Roman 8 / ECMA 94 character set
+
+    private boolean m_bEsc; // not ESC sequence
+    private int m_byGraphLength; // remaining no. of graphic bytes
+
+    public PrinterSimulator() {
+        m_ePrinterModel = PM_HP82240B;			// HP82240B printer
+
+        reset();								// reset printer state machine
+    }
+
+    //
+    // reset printer state machine
+    //
+    void reset() {
+        m_bExpChar = false;						// printing normal-width characters
+        m_bUnderLined = false;					// printing non underlined characters
+
+        // Roman 8 character set for HP82240A and HP82240B, ECMA 94 for serial printer type
+        m_bEcma94 = (m_ePrinterModel == PM_GenericSerial);
+
+        m_bEsc = false;							// not ESC sequence
+        m_byGraphLength = 0;					// no remaining graphic bytes
+    }
+
+    //
+    // printer selftest
+    //
+    void selftest() {
+        // self test normally run in an endless loop, that's very hard to implement,
+        // so this implementation printing all chracters only one time and then
+        // go back to the communication interface
+
+        int i,nLF;
+
+        reset();								// reset printer state machine
+
+        nLF = 1;
+        write((byte)4);				    		// begin with special LF
+        write((byte)95);						// '_' instead if ' ' as first character
+        for (i = 33; i <= 256; ++i) {			// all ROMAN8 characters
+            if (nLF == 0) write((byte)4);		// LF after 24 characters printing
+            write((byte)i);						// print character
+            nLF = ++nLF % 24;
+        }
+
+        // post code, identification number: HP82240A = D, HP82240B = G
+        write((byte)(m_ePrinterModel == PM_HP82240A ? 'D' : 'G'));
+
+        // rest of post code is battery state full
+        String szPostPrt = "\u0004\u0004BAT: 5\u0004\u0004";
+
+        for (int ci = 0; ci < szPostPrt.length(); ci++) { 	// write post print
+            char c = szPostPrt.charAt(ci);
+            write((byte)c);
+        }
+    }
+
+    public synchronized void write(int byData) {
+        data.add(byData);
+
+        do {
+            // check for begin of ESC sequence
+            if (byData == ESC && !m_bEsc && m_byGraphLength == 0) {
+                m_bEsc = true;					// ESC sequence mode
+                break;
+            }
+
+            if (m_bEsc) {						// byte is ESC command
+                switch (byData) {
+                    case 255: // reset
+                        reset();
+                        break;
+                    case 254: // start self test
+                        selftest();
+                        break;
+                    case 253: // start printing expanded characters
+                        m_bExpChar = true;
+                        break;
+                    case 252: // return to normal-width characters
+                        m_bExpChar = false;
+                        break;
+                    case 251: // start printing underlined characters
+                        m_bUnderLined = true;
+                        break;
+                    case 250: // stop underlining
+                        m_bUnderLined = false;
+                        break;
+                    case 249: // ECMA 94 character set
+                        if (m_ePrinterModel == PM_HP82240B)
+                            m_bEcma94 = true;
+                        break;
+                    case 248: // Roman 8 character set
+                        if (m_ePrinterModel == PM_HP82240B)
+                            m_bEcma94 = false;
+                        break;
+                    default:
+                        // graphic data
+                        if (byData >= 1 && byData <= 166) {
+                            // remaining graphic bytes
+                            m_byGraphLength = byData;
+                        }
+                }
+                m_bEsc = false;
+                break;
+            }
+
+            // normal character
+            if (m_byGraphLength == 0) { 	    // not a graphic character
+                m_Text.append((char)byData);    // output to text window
+            }
+
+            // output to graphic window
+            //m_Graph.WriteChar(byData,m_byGraphLength > 0);
+
+            if (m_byGraphLength > 0) {  		// in graphic mode
+                --m_byGraphLength;				// graphic character printed
+            }
+        } while (false);
+    }
+
+    String getText() {
+        return m_Text.toString();
+    }
+}

app/src/main/res/menu/activity_main_drawer.xml

@@ -88,6 +88,10 @@
                 android:id="@+id/nav_change_kml_script"
                 android:icon="@drawable/ic_wallpaper_black_24dp"
                 android:title="@string/nav_change_kml_script" />
+            <item
+                android:id="@+id/nav_show_printer"
+                android:icon="@drawable/ic_wallpaper_black_24dp"
+                android:title="@string/nav_show_printer" />
         </menu>
     </item>
     <item android:title="@string/nav_tool">

app/src/main/res/values/strings.xml

@@ -40,6 +40,7 @@
     <string name="nav_delete_backup">Delete Backup</string>
     <string name="nav_view">View</string>
     <string name="nav_change_kml_script">Change KML Script...</string>
+    <string name="nav_show_printer">Show the Printer Simulator...</string>
     <string name="nav_tool">Tool</string>
     <string name="nav_create_ram_card">Create RAM Card...</string>
     <string name="nav_help">Help</string>
@@ -67,6 +68,7 @@
     <string name="message_kml_script_compilation_result">KML Script Compilation Result</string>
     <string name="message_kml_folder_selection_need_api_lollipop">Need Android 5.0</string>
     <string name="message_kml_folder_selection_need_api_lollipop_description">To select the KML folder, you need at least Android version 5.0</string>
+    <string name="message_printer">Printer Simulator</string>
 
     <string name="settings_category_general_title">General</string>
     <string name="settings_realspeed_title">Authentic Calculator Speed</string>

app/src/main/res/xml/pref_general.xml

@@ -141,7 +141,7 @@
             <!--"Device",IDC_STATIC,13,42,24,8-->
             <!--COMBOBOX        IDC_SOUND_DEVICE,44,40,193,87,CBS_DROPDOWNLIST |-->
         <!--</PreferenceCategory>-->
-        <!--<PreferenceCategory app:title="Infrared Printer">
+        <!--<PreferenceCategory app:title="Infrared PrinterSimulator">
             "IP Address:",IDC_STATIC
             "Port:",IDC_STATIC
             IDC_IR_ADDR