/**
* Metoda wyswietlajaca pasek postepu nad przyciskami
*
* @param g Referencja do obiektu klasy Graphics, ktory pozwala na narysowanie pasku postepu
* @param current Aktualny czas trwania piosenki, 0 <= progress <= max
* @param max Calkowity czas trwania piosenki
*/
public void showProgressBar(Graphics g, int current, int max) {
int color = g.getColor(); // przechowanie uzywanego koloru
int progressBarWidth = screenWidth - 25; // szerokosc paska postepu
int progress = (progressBarWidth * current) / max;
if (current == -1) // jesli timer jest wylaczony
progress = 0;
g.setColor(110, 110, 110); // narysowanie szarej obwodki
g.drawRect(10, screenHeight - 29 + buttonsLocation, progressBarWidth + 3, 17);
g.setColor(90, 90, 90); // narysowanie ciemnej obwodki
g.drawRect(11, screenHeight - 28 + buttonsLocation, progressBarWidth + 1, 15);
g.setColor(BACKGROUND_COLOR);
g.fillRect(12, screenHeight - 27 + buttonsLocation, progressBarWidth, 14);
g.setColor(230, 230, 230);
g.fillRect(12, screenHeight - 27 + buttonsLocation, progress, 14);
g.setColor(70, 70, 70);
if (this.displayedScreen == MainCanvas.PLAYER_SCREEN)
g.drawString(
bluetoothPlayer.getCurrentTimeString(),
screenWidth / 2 - 17,
screenHeight - 26 + buttonsLocation,
Graphics.TOP | Graphics.LEFT);
g.setColor(color);
}
/**
* Metoda wyswietlajaca biblioteke muzyczna na wyswietlaczu
*
* @param g Referencja do obiektu klasy Graphics, ktory pozwala na wyswietlenie tekstu
* @param player Referencja do obiektu klasy odtwarzacza muzycznego
* @param screenSelectedItemIndex Indeks wybranego elementu na wyswietlaczu
* @param screenNumberOfItems Liczba elementow wyswietlonych na wyswietlaczu
*/
public void showMediaLibrary(
Graphics g, BluetoothPlayer player, int screenSelectedItemIndex, int screenNumberOfItems) {
int color = g.getColor(); // przechowanie uzywanego koloru
int textPos = 0;
String text;
g.setColor(255, 255, 255); // biala czcionka
for (int i = 0; i < screenNumberOfItems; i++) {
text =
bluetoothPlayer
.getMediaLibrary()
.getItem(
bluetoothPlayer.getMediaLibrary().getMediaLibrarySelectedItem()
- screenSelectedItemIndex
+ i,
g);
if (text != null) {
// jesli zmienil sie wybrany tekst
if ((screenSelectedItemIndex == i) && (text.equals(mediaLibraryLastText) == false)) {
mediaLibraryLastText = text;
mediaLibraryTextPos = 0;
mediaLibraryWaitTimeText = SCROLL_TIME_WAIT;
}
textPos = mediaLibraryTextPos;
// if whole text can be displayed at once
if (Font.getDefaultFont().stringWidth(text) <= screenWidth - 32) {
g.setColor(255, 255, 255); // biala czcionka
g.drawString(text, 10, i * (fontHeight + 5) + 8, Graphics.TOP | Graphics.LEFT);
}
// if text doesn't fit into the screen
else {
String leftTextTmp = "";
int j = 0;
// cut text from the left as long as it doesn't fit to the screen (only for selected item)
if (screenSelectedItemIndex == i)
while (Font.getDefaultFont().stringWidth(leftTextTmp) < textPos) {
leftTextTmp = text.substring(0, ++j);
}
String textTmp = text.substring(j, text.length());
boolean textRightCut = false;
// cut text from the right as long as it doesn't fit to the screen
while (Font.getDefaultFont().stringWidth(textTmp) > screenWidth - 24) {
textTmp = textTmp.substring(0, textTmp.length() - 1);
textRightCut = true;
}
g.setColor(255, 255, 255); // biala czcionka
g.drawString(textTmp, 10, i * (fontHeight + 5) + 8, Graphics.TOP | Graphics.LEFT);
g.setColor(BACKGROUND_COLOR); // zamazanie tekstu po bokach
g.fillRect(screenWidth - 10, i * (fontHeight + 5) + 8, 5, fontHeight);
if (screenSelectedItemIndex == i) {
if ((textRightCut == false)
&& (mediaLibraryWaitTimeText == 0)) // jesli tekst przewinal sie do konca
mediaLibraryWaitTimeText = SCROLL_TIME_WAIT;
if (mediaLibraryWaitTimeText == 0) mediaLibraryTextPos += 2; // przewiniecie tekstu
// if text is going to be displayed statically (without scrolling it)
else {
mediaLibraryWaitTimeText--;
// if wait time has ended, start scrolling from the beginning
if ((mediaLibraryWaitTimeText == 0) && (mediaLibraryTextPos != 0)) {
mediaLibraryWaitTimeText = SCROLL_TIME_WAIT;
mediaLibraryTextPos = 0;
}
}
}
}
}
}
g.setColor(255, 255, 255);
// obwodka dla podswietlonego elementu
if (screenNumberOfItems > 0)
g.drawRect(
7, screenSelectedItemIndex * (fontHeight + 5) + 6, screenWidth - 16, fontHeight + 1);
g.setColor(color);
}
/** Metoda sluzaca do ponownego polaczenia sie z serwerem */
public void reconnectToServer() {
bluetoothPlayer
.closeConnection(); // wystarczy sie rozlaczyc, reszta zostanie wykonana w metodzie run
// klasy BluetoothPlayer
}
/** Metoda odpowiedzialna za przerysowanie ekranu */
public void updateScreen() {
Graphics g = getGraphics();
if (displayedScreen == PLAYER_SCREEN) {
if (backgroundLayer != null) {
backgroundLayer.paint(g);
}
if ((bluetoothPlayer.getIsConnectedToServer() == false)
&& (bluetoothPlayer.getBluetoothError() == false)) drawText(g, "Connecting...", 0);
else if (bluetoothPlayer.getBluetoothError() == true) drawText(g, "Disconnected", 0);
else {
if (bluetoothPlayer.getTitle() != null) {
drawText(g, bluetoothPlayer.getTitle(), 0);
}
if (bluetoothPlayer.getArtist() != null) {
drawText(g, bluetoothPlayer.getArtist(), 1);
}
if (showVolume > 0) {
showVolume--;
drawText(g, " Volume: " + volumeLevel + "%", 2);
}
}
if (bluetoothPlayer.isBluetoothOn()) {
if (bluetoothPlayer.getInquiryStarted()) {
showInquiryProgress(g, inquiryProgress += 20);
if (inquiryProgress >= 360) inquiryProgress = 0;
} else {
inquiryProgress = 0;
showInquiryProgress(g, 0);
}
} else {
drawText(g, "Please turn your Bluetooth device on", 1);
}
playPauseSprite.setPosition(screenWidth / 2 - 16, screenHeight - 66 + buttonsLocation);
previousSprite.setPosition(screenWidth / 2 - 55, screenHeight - 66 + buttonsLocation);
nextSprite.setPosition(screenWidth / 2 + 23, screenHeight - 66 + buttonsLocation);
playPauseSprite.paint(g);
previousSprite.paint(g);
nextSprite.paint(g);
if (bluetoothPlayer.getTotalTime() != 0)
showProgressBar(g, bluetoothPlayer.getCurrentTime(), bluetoothPlayer.getTotalTime());
else showProgressBar(g, 0, 100);
} else if (displayedScreen == MEDIA_LIBRARY_LOADING) {
if (backgroundLayer != null) {
backgroundLayer.paint(g);
}
if (bluetoothPlayer.getIsConnectedToServer() == true) {
drawText(g, "Loading media library", 0);
drawText(g, "Please wait...", 1);
// display size of the media library
if (bluetoothPlayer.getMediaLibrarySize() >= 1024) {
drawText(
g,
"Total size: "
+ bluetoothPlayer.getMediaLibrarySize() / 1024
+ "."
+ (bluetoothPlayer.getMediaLibrarySize() % 1024) * 100 / 1024
+ " kB",
3);
} else drawText(g, "Total size: " + bluetoothPlayer.getMediaLibrarySize() + " B", 3);
int size = bluetoothPlayer.getMediaLibrarySize();
if (size == 0) // to avoid dividing by zero
size = 1;
showProgressBar(g, bluetoothPlayer.getMediaLibraryDownloadedBytes(), size);
// if the playlist file was downloaded and parsed
if (bluetoothPlayer.getMediaLibrary().getLibraryDownloadedAndParsed() == true)
setDisplayedScreen(MainCanvas.MEDIA_LIBRARY_SCREEN);
} else drawText(g, "You're not connected", 0);
} else if (displayedScreen == MEDIA_LIBRARY_SCREEN) {
if (backgroundLayer != null) {
backgroundLayer.paint(g);
}
showMediaLibrary(
g, bluetoothPlayer, mediaLibrarySelectedItemOnScreen, mediaLibraryItemsNumberOnScreen);
}
flushGraphics();
}
/** Metoda sprawdzajaca stan klawiszy i aktualizujaca zmienne odpowiedzialne za stan gry */
public void updateState() {
int keys = getKeyStates();
if (bluetoothPlayer.getIsConnectedToServer() == true) {
if (displayedScreen == PLAYER_SCREEN) { // jesli wyswietlany jest ekran odtwarzacza
// jesli przycisk 'Play / Pause' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & FIRE_PRESSED) != 0) && (nextPressed == false) && (previousPressed == false)) {
if (playPauseSprite.getFrame() == PLAY_ICON) {
playPauseSprite.setFrame(PLAY_ICON_PRESSED);
} else if (playPauseSprite.getFrame() == PAUSE_ICON) {
playPauseSprite.setFrame(PAUSE_ICON_PRESSED);
}
if (firePressed == false) soundPlayer.play(SoundPlayer.CLICK_SOUND);
firePressed = true;
}
// przycisk zostal zwolniony
else if (((keys & FIRE_PRESSED) == 0) && (firePressed == true)) {
if (playPauseSprite.getFrame() == PLAY_ICON_PRESSED) { // zmiana stanu przycisku
bluetoothPlayer.play();
playPauseSprite.setFrame(PAUSE_ICON);
} else if (playPauseSprite.getFrame() == PAUSE_ICON_PRESSED) {
bluetoothPlayer.pause();
playPauseSprite.setFrame(PLAY_ICON);
}
firePressed = false;
}
// jesli przycisk 'Next' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & RIGHT_PRESSED) != 0) && (firePressed == false) && (previousPressed == false)) {
if (nextSprite.getFrame() == NEXT_ICON) nextSprite.setFrame(NEXT_ICON_PRESSED);
if (nextPressed == false) {
soundPlayer.play(SoundPlayer.CLICK_SOUND);
}
nextPressed = true;
}
// przycisk zostal zwolniony
else if (((keys & RIGHT_PRESSED) == 0) && (nextPressed == true)) {
if (nextSprite.getFrame() == NEXT_ICON_PRESSED) nextSprite.setFrame(NEXT_ICON);
bluetoothPlayer.addCommandToProcess(BluetoothPlayer.COMMAND_NEXT);
nextPressed = false;
if (bluetoothPlayer.getTotalTime() != 0) // jesli utwor jest odtwarzany lub zapauzowany
playPauseSprite.setFrame(PAUSE_ICON);
}
// jesli przycisk 'Previous' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & LEFT_PRESSED) != 0) && (nextPressed == false) && (firePressed == false)) {
if (previousSprite.getFrame() == PREVIOUS_ICON)
previousSprite.setFrame(PREVIOUS_ICON_PRESSED);
if (previousPressed == false) {
soundPlayer.play(SoundPlayer.CLICK_SOUND);
}
previousPressed = true;
}
// przycisk zostal zwolniony
else if (((keys & LEFT_PRESSED) == 0) && (previousPressed == true)) {
if (previousSprite.getFrame() == PREVIOUS_ICON_PRESSED)
previousSprite.setFrame(PREVIOUS_ICON);
bluetoothPlayer.addCommandToProcess(BluetoothPlayer.COMMAND_PREV);
previousPressed = false;
if (bluetoothPlayer.getTotalTime() != 0) // jesli utwor jest odtwarzany lub zapauzowany
playPauseSprite.setFrame(PAUSE_ICON);
}
// jesli przycisk 'Up' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & UP_PRESSED) != 0)
&& (previousPressed == false)
&& (nextPressed == false)
&& (firePressed == false)) {
if (previousPressed == false) {
soundPlayer.play(SoundPlayer.CLICK_SOUND);
}
bluetoothPlayer.volumeUp();
}
// jesli przycisk 'Down' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & DOWN_PRESSED) != 0)
&& (previousPressed == false)
&& (nextPressed == false)
&& (firePressed == false)) {
if (previousPressed == false) {
soundPlayer.play(SoundPlayer.CLICK_SOUND);
}
bluetoothPlayer.volumeDown();
}
}
}
// jesli wyswietlany jest ekran biblioteki muzycznej
if (displayedScreen == MEDIA_LIBRARY_SCREEN) {
// jesli przycisk akcji jest wcisniety, a pozostale nie sa wcisniete
if (((keys & FIRE_PRESSED) != 0) && (nextPressed == false) && (previousPressed == false)) {
buttonPressedInARowCount = 0;
if (firePressed == false) soundPlayer.play(SoundPlayer.CLICK_SOUND);
firePressed = true;
}
// przycisk zostal zwolniony
else if (((keys & FIRE_PRESSED) == 0) && (firePressed == true)) {
buttonPressedInARowCount = 0;
firePressed = false;
}
// jesli przycisk 'Down' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & DOWN_PRESSED) != 0) && (firePressed == false) && (previousPressed == false)) {
if (nextPressed == true) buttonPressedInARowCount++;
else buttonPressedInARowCount = 0;
nextPressed = true;
}
// button was released or hold down for more than MAX_BUTTON_PRESSED_IN_A_ROW_COUNT clicks
if ((((keys & DOWN_PRESSED) == 0) && (nextPressed == true))
|| (((keys & DOWN_PRESSED) != 0)
&& (buttonPressedInARowCount >= MAX_BUTTON_PRESSED_IN_A_ROW_COUNT))) {
// jesli wybrany utwor nie byl ostatni na liscie
if (bluetoothPlayer.getMediaLibrary().selectItemInMediaLibrary(NEXT_ITEM) == true) {
if (mediaLibrarySelectedItemOnScreen < mediaLibraryItemsNumberOnScreen - 1)
mediaLibrarySelectedItemOnScreen++;
}
// nextPressed is set to false only if button was released
if ((((keys & DOWN_PRESSED) != 0)
&& (buttonPressedInARowCount >= MAX_BUTTON_PRESSED_IN_A_ROW_COUNT))
== false) nextPressed = false;
}
// jesli przycisk 'Previous' jest wcisniety, a pozostale nie sa wcisniete
if (((keys & UP_PRESSED) != 0) && (nextPressed == false) && (firePressed == false)) {
if (previousPressed == true) buttonPressedInARowCount++;
else buttonPressedInARowCount = 0;
previousPressed = true;
}
// button was released or hold down for more than MAX_BUTTON_PRESSED_IN_A_ROW_COUNT clicks
if ((((keys & UP_PRESSED) == 0) && (previousPressed == true))
|| (((keys & UP_PRESSED) != 0)
&& (buttonPressedInARowCount >= MAX_BUTTON_PRESSED_IN_A_ROW_COUNT))) {
// jesli wybrany utwor nie byl pierwszy na liscie
if (bluetoothPlayer.getMediaLibrary().selectItemInMediaLibrary(PREVIOUS_ITEM) == true) {
if (mediaLibrarySelectedItemOnScreen > 0) mediaLibrarySelectedItemOnScreen--;
}
// previousPressed is set to false only if button was released
if ((((keys & UP_PRESSED) != 0)
&& (buttonPressedInARowCount >= MAX_BUTTON_PRESSED_IN_A_ROW_COUNT))
== false) previousPressed = false;
}
}
// if volume level has changed
if (volumeLevel != bluetoothPlayer.getVolumeLevel()) {
showVolume = 15;
volumeLevel = bluetoothPlayer.getVolumeLevel();
}
if (bluetoothPlayer.getIsConnectedToServer() == false) {
if (buttonsLocation < 70) buttonsLocation += 5;
}
if ((bluetoothPlayer.getIsConnectedToServer() == true) && (buttonsLocation > 0)) {
buttonsLocation -= 5;
}
if (bluetoothPlayer.getStateChanged()) {
String state = bluetoothPlayer.getPlayingState();
if (state != null) {
if (state.equals("PLAY") || state.equals("OTHER")) {
playPauseSprite.setFrame(PAUSE_ICON);
} else if (state.equals("PAUSE") || state.equals("STOP"))
playPauseSprite.setFrame(PLAY_ICON);
}
soundPlayer.play(SoundPlayer.POPUP_SOUND);
}
}
/** Metoda odpowiedzialna za czyszczenie pozostalosci po aplikacji */
public void destroy() {
bluetoothPlayer.closeConnection();
scene = null;
}