public Image colImage(int color) {
Image img =
Image.createImage(Font.getDefaultFont().getHeight(), Font.getDefaultFont().getHeight());
Graphics g = img.getGraphics();
g.setColor(color);
g.fillRect(0, 0, img.getWidth(), img.getHeight());
return img;
}
public ExtendedTextField() {
setFullScreenMode(true);
setCommandListener(this);
exit = new Command("Exit", Command.EXIT, 1);
open = new Command("Open", Command.ITEM, 1);
newFile = new Command("New", Command.ITEM, 2);
save = new Command("Save", Command.ITEM, 3);
saveAs = new Command("Save As", Command.ITEM, 4);
eval = new Command("Eval", Command.ITEM, 5);
output = new Command("Output", Command.ITEM, 6);
cls = new Command("Clear", Command.ITEM, 7);
addCommand(exit);
addCommand(newFile);
addCommand(open);
addCommand(save);
addCommand(saveAs);
addCommand(eval);
addCommand(output);
addCommand(cls);
new Thread(this).start();
// TODO: change font size?
inputFont = Font.getDefaultFont();
inputWidth = getWidth();
inputHeight = inputFont.getHeight();
linesOnScreen = getHeight() / inputHeight;
addNewLine(0);
}
/** Initialize the graphic elements needed for this item. */
protected void initContent(int firstLineWidth, int availWidth, int availHeight) {
if (this.font == null) {
this.font = Font.getDefaultFont();
this.fontColor = 0x000000;
}
contentHeight = font.getHeight() + this.linePadding;
contentWidth = availWidth;
}
/**
* Returns the font of the style. If the font of the style is null return the default font.
*
* @return the font
*/
public Font getFont() {
if (this.font == null) {
if (this.style != null) {
this.font = this.style.getFont();
}
if (this.font == null) {
this.font = Font.getDefaultFont();
}
}
return this.font;
}
/**
* Konstruktor obiektu klasy MainCanvas
*
* @throws IOException
*/
public MainCanvas() throws IOException {
super(true);
soundPlayer = new SoundPlayer(); // uruchomienie watku odpowiedzialnego za odtwarzanie dzwiekow
new Thread(soundPlayer).start();
screenWidth = getWidth();
screenHeight = getHeight();
fontHeight = Font.getDefaultFont().getHeight();
mediaLibrarySelectedItemOnScreen = 0;
mediaLibraryItemsNumberOnScreen = (screenHeight - 16) / (fontHeight + 5);
buttonsLocation = 70;
loadResources(); // utworzenie obiektow warstwy tla i tekstur
bluetoothPlayer = new BluetoothPlayer();
Thread appThread =
new Thread(this); // uruchomienie watku odpowiedzialnego za wyswietlanie grafiki
appThread.start();
}
/**
* 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 wypisania tekstu na ekranie w podanej linii
*
* @param g Referencja do obiektu klasy Graphics, ktory pozwala na wyswietlenie tekstu
* @param text Tekst, ktory ma zostac wypisany
* @param line Numer linii, w ktorej ma zostac wypisany tekst
* @return <code>true</code> jesli wypisanie tekstu powiodlo sie, <code>false</code> w przeciwnym
* razie
*/
public boolean drawText(Graphics g, String text, int line) {
int color = g.getColor(); // przechowanie uzywanego koloru
int textPos = 0;
g.setColor(BACKGROUND_COLOR); // zamazanie starego tekstu
g.fillRect(16, 16 + line * (fontHeight + 3), screenWidth - 32, fontHeight);
if (line == 0) {
// if displayed text had changed
if (text.equals(lastText0) == false) {
lastText0 = text;
textPos0 = 0;
waitTimeText0 = SCROLL_TIME_WAIT;
}
textPos = textPos0;
} else if (line == 1) {
// if displayed text had changed
if (text.equals(lastText1) == false) {
lastText1 = text;
textPos1 = 0;
waitTimeText1 = SCROLL_TIME_WAIT;
}
textPos = textPos1;
}
// 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, 16, 16 + line * (fontHeight + 3), Graphics.TOP | Graphics.LEFT);
}
// if text doesn't fit into the screen
else {
String leftTextTmp = "";
int i = 0;
// cut text from the left as long as it doesn't fit to the screen
while (Font.getDefaultFont().stringWidth(leftTextTmp) < textPos) {
leftTextTmp = text.substring(0, ++i);
}
String textTmp = text.substring(i, 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 - 32) {
textTmp = textTmp.substring(0, textTmp.length() - 1);
textRightCut = true;
}
g.setColor(255, 255, 255); // biala czcionka
g.drawString(textTmp, 16, 16 + line * (fontHeight + 3), Graphics.TOP | Graphics.LEFT);
g.setColor(BACKGROUND_COLOR); // zamazanie tekstu po bokach
g.fillRect(screenWidth - 16, 16 + line * (fontHeight + 3), 11, fontHeight);
// g.fillRect(5, 16 + line*(fontHeight + 3), 11, fontHeight);
if (line == 0) {
if ((textRightCut == false) && (waitTimeText0 == 0)) // jesli tekst przewinal sie do konca
waitTimeText0 = SCROLL_TIME_WAIT;
if (waitTimeText0 == 0) textPos0 += 2; // przewiniecie tekstu
// if text is going to be displayed statically (without scrolling it)
else {
waitTimeText0--;
// if wait time has ended, start scrolling from the beginning
if ((waitTimeText0 == 0) && (textPos0 != 0)) {
waitTimeText0 = SCROLL_TIME_WAIT;
textPos0 = 0;
}
}
} else if (line == 1) {
if ((textRightCut == false) && (waitTimeText1 == 0)) // jesli tekst przewinal sie do konca
waitTimeText1 = SCROLL_TIME_WAIT;
if (waitTimeText1 == 0) textPos1 += 2; // przewiniecie tekstu
// if text is going to be displayed statically (without scrolling it)
else {
waitTimeText1--;
// if wait time has ended, start scrolling from the beginning
if ((waitTimeText1 == 0) && (textPos1 != 0)) {
waitTimeText1 = SCROLL_TIME_WAIT;
textPos1 = 0;
}
}
}
}
g.setColor(color);
return true;
}
/**
* The AboutScreen is a Canvas which shows the MTE Logo and some information about the MTE
*
* <p>The AboutScreen has 3 sections, the Mobile Trail Explorer (MTE) Logo/Image at the top,
* followed by an "About" section, and finally a "Useage" section.<br>
*
* <p>Both the About and Usage sections consist of an underlined 'Title' followed by multiple lines
* of text.
*
* @author Barry Redmond
*/
public final class AboutScreen extends Canvas {
/** The size margin to draw when margins are needed. */
private static final int MARGIN = 5;
/** The default font to ~use for drawing the messages. */
private static final Font DEFAULT_SIMPLE_FONT = Font.getDefaultFont();
private static final String[] aboutText = {"BTIS,", "", "Version: Alpha release", ""};
private static final String[] trailScreenHelpText = {
"use following keys ",
"2 for UP",
"4 for LEFT",
"5 for CENTRE",
"6 for RIGHT",
"8 for DOWN",
"",
"1 for Zoom out",
"3 for Zoom in"
};
private static final String[] elevationScreenHelpText = {"", ""};
private static final String[] skyViewScreenHelpText = {"", ""};
/* private static final String[] elevationScreenHelpText = {
"Scroll the Elevation Diagram LEFT or RIGHT using the 4 and 6 keys respectivly.",
"",
"The Elevation scale can be \"Zoomed\" using the 1 and 3 keys for ZOOM-OUT and ZOOM-IN respectivly.",
"",
"The Elevation scale can be re-centered by pressing the 2 key.",
"",
"The Time scale can be \"Zoomed\" using the 7 and 9 keys for ZOOM-OUT and ZOOM-IN respectivly.",
"",
"N.B. Altitude accuracy on GPS is similar to location (i.e. ~10metres. However since most trails do not"
+ " rise or fall very fast the altitude track displayed may seem very jumpy, and inaccurate." };
private static final String[] skyViewScreenHelpText = {
"The Sky View shows the visible GPS sattelite locations and signal strength",
"",
"Because it is a sky view the E and W appear back the front unless pointed at the sky",
"",
"The number shown next to Trk # is the number of sattelites currently being used for the GPS fix",
"",
"Increase or decrease the Signal SNR range for the display by pressing the 2 and 8 keys"};
*/
private static final String[] helpText = {
"For more information visit", "www.btis.in", "", "", "", ""
};
/**
* The titles of the different sections {@link AboutScreen#TITLES}[n] is the title corrosponding
* to {@link AboutScreen#MESSAGES}[n]<br>
* Both {@link AboutScreen#TITLES} and {@link AboutScreen#MESSAGES} must NOT be null, and must
* have the same number of elements.
*/
private static final String[] TITLES = {"Map browsing", "Help"};
/**
* The text for the different sections {@link AboutScreen#MESSAGES}[n] is the text corrosponding
* to {@link AboutScreen#TITLES}[n]<br>
* Both {@link AboutScreen#TITLES} and {@link AboutScreen#MESSAGES} must NOT be null, and must
* have the same number of elements.
*/
private static final String[][] MESSAGES = {trailScreenHelpText, helpText};
static {
if (TITLES == null || MESSAGES == null || TITLES.length != MESSAGES.length) {
try {
throw new java.lang.IllegalStateException(
"There was a problem with the coding of the "
+ AboutScreen.class.getName()
+ " class. neither titles, nor messages may be null, and they both must have the same number of elements");
} catch (IllegalStateException e) {
e.printStackTrace();
throw e;
}
}
}
private Controller controller;
private final Image logo;
private int yPos;
// this is calculated the first time the paint(Graphics) method is
// called.
private int totalHeight;
// Used to decide if we should set the 'totalHeight' property.
private boolean firstTime = true;
private String[][] formattedMessages;
/** Creates a new instance of AboutScreen */
public AboutScreen() {
this.controller = Controller.getController();
this.setFullScreenMode(true);
this.logo = ImageUtil.loadImage("/images/logo.png");
this.yPos = 0;
this.formattedMessages = new String[MESSAGES.length][];
for (int i = 0; i < MESSAGES.length; i++) {
formattedMessages[i] = formatMessage(MESSAGES[i], this.getWidth());
}
}
/**
* Takes an array of messages and a 'Screen-width' and returns the same messages, but any string
* in that that is wider than 'width' will be split up into 2 or more Strings that will fit on the
* screen 'Spliting' up a String is done on the basis of Words, so if a single WORD is longer than
* 'width' it will be on a Line on it's own, but that line WILL be WIDER than 'width'
*
* @param message
* @param width the maximum width a string may be before being split up.
* @return
*/
private String[] formatMessage(String[] message, int width) {
Vector result = new Vector(message.length);
for (int i = 0; i < message.length; i++) {
if (DEFAULT_SIMPLE_FONT.stringWidth(message[i]) <= width) {
result.addElement(message[i]);
} else {
String[] splitUp =
StringUtil.chopStrings(message[i], " ", AboutScreen.DEFAULT_SIMPLE_FONT, width);
for (int j = 0; j < splitUp.length; j++) {
result.addElement(splitUp[j]);
}
}
}
String[] finalResult = new String[result.size()];
for (int i = 0; i < finalResult.length; i++) {
finalResult[i] = (String) result.elementAt(i);
}
return finalResult;
}
protected void paint(Graphics g) {
int width = this.getWidth();
// Fill in the background White
g.setColor(0xFFFFFF); // White
g.fillRect(0, 0, width, this.getHeight());
int y = yPos;
y += MARGIN;
if (this.logo != null) {
g.drawImage(this.logo, width / 2, y, Graphics.TOP | Graphics.HCENTER);
y += logo.getHeight() + MARGIN;
}
g.setColor(0x0); // Black
// Write the title "About"
final Font titleFont =
Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD | Font.STYLE_UNDERLINED, Font.SIZE_LARGE);
/*
* TODO: currently paints ALL the text, even if there is (a lot) more
* than can fit on the screen. (must do this first time to assess
* 'height', but shouldn't need to do it for any other repaint
*/
for (int i = 0; i < TITLES.length; i++) {
final int basicFontHeight = DEFAULT_SIMPLE_FONT.getHeight();
final int titleFontHeight = titleFont.getHeight();
// Write out the 'message' heading
g.setFont(titleFont);
final String title = TITLES[i];
int stringWidth = g.getFont().stringWidth(title);
g.drawString(title, (width - stringWidth) / 2, y, 0);
y += titleFontHeight;
// Write out the 'message' text.
g.setFont(DEFAULT_SIMPLE_FONT);
for (int j = 0; j < this.formattedMessages[i].length; j++) {
final String message = this.formattedMessages[i][j];
stringWidth = g.getFont().stringWidth(message);
g.drawString(message, (width - stringWidth) / 2, y, 0);
y += basicFontHeight;
}
y += basicFontHeight;
}
// Set the total-Height the first time
if (firstTime) {
totalHeight = y + MARGIN;
firstTime = false;
}
}
/** Handle all keyPressed-events */
public void keyPressed(int keycode) {
if (this.getGameAction(keycode) == UP) {
upPressed();
} else if (this.getGameAction(keycode) == DOWN) {
downPressed();
} else {
// Exit on ANY other key press.
controller.MainMenu();
}
}
/** Handle all keyRepeaded-events */
public void keyRepeated(int keycode) {
if (this.getGameAction(keycode) == UP) {
upPressed();
} else if (this.getGameAction(keycode) == DOWN) {
downPressed();
}
}
/** Pan the screen up if an Up-Key is pressed */
private void upPressed() {
yPos += 20;
if (yPos > 0) {
yPos = 0;
}
this.repaint();
}
/** Pan the screen down if a Down-Key is pressed */
private void downPressed() {
yPos -= 20;
if (yPos < this.getHeight() - this.totalHeight) {
yPos = this.getHeight() - this.totalHeight;
}
this.repaint();
}
}
protected void paint(Graphics g) {
int w = getWidth();
int h = getHeight();
if (_phase == 0) {
long t = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) g.drawLine(0, i % 150, 149, 149 - i % 150);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 1) {
long t = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) g.drawLine(0, i % h, w - 1, h - 1 - i % h);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 2) {
long t = System.currentTimeMillis();
for (int i = 0; i < 1000; i++) g.fillRect(0, 0, 150, 150);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 3) {
long t = System.currentTimeMillis();
for (int i = 0; i < 1000; i++) g.fillRect(0, 0, w, h);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 4) {
Image img = Image.createImage(150, 150);
img.getGraphics().setColor(0x456789);
img.getGraphics().setFont(Font.getDefaultFont());
img.getGraphics().drawString("ahoj", 0, 0, Graphics.LEFT | Graphics.TOP);
long t = System.currentTimeMillis();
for (int i = 0; i < 1000; i++) g.drawImage(img, 0, 0, Graphics.LEFT | Graphics.TOP);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 5) {
long t = System.currentTimeMillis();
GeneralFont f = GeneralFont.SystemFontsBold[0];
for (int i = 0; i < 1000; i++) f.drawString(g, "0123", 0, 0, Graphics.TOP | Graphics.LEFT);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 6) {
long t = System.currentTimeMillis();
GeneralFont f = GeneralFont.NumberFonts[0];
for (int i = 0; i < 1000; i++) f.drawString(g, "0123", 0, 0, Graphics.TOP | Graphics.LEFT);
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 7) {
long t = System.currentTimeMillis();
double a, b, c;
for (int i = 0; i < 10000; i++) {
a = Math.cos(Math.sin(Math.floor(1.1 + i)));
b = Math.sqrt(a);
c = (a * b + a * b + a * b) % (1 + b * b);
_times[_phase] = (long) c;
}
_times[_phase++] = System.currentTimeMillis() - t;
} else if (_phase == 8) {
long t = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
// Earth.atan2(i*0.001, (i+1)*0.001);
Earth.gg2lat(Earth.lat2gg(50));
}
_times[_phase++] = System.currentTimeMillis() - t;
}
Font f = Font.getDefaultFont();
int y = 0;
g.setColor(0);
g.fillRect(0, 0, w, h);
g.setColor(0xffffff);
g.setFont(f);
for (int i = 0; i < _phase; i++) {
g.drawString(_tests[i] + ": " + _times[i] + "ms", 0, y, Graphics.LEFT | Graphics.TOP);
y += f.getHeight();
}
if (_phase < _tests.length) {
g.drawString("<testing...>", 0, y, Graphics.LEFT | Graphics.TOP);
new Thread() {
public void run() {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
repaint();
}
}.start();
} else g.drawString("<done>", 0, y, Graphics.LEFT | Graphics.TOP);
}
