Sample of graphics, commands, and event handling.

<strong> * @(#) 1.9 01/06/08</strong>
<strong> * Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.</strong>
<strong> */</strong>

<strong>import javax.microedition.midlet.*;</strong>
<strong>import javax.microedition.lcdui.*;</strong>

<strong> * A quick sample of graphics, commands, and event handling.</strong>
<strong> */</strong>
<strong>public class SampleCanvasMIDlet extends MIDlet implements CommandListener {</strong>
<strong> Display display;</strong>
<strong> Command exitCommand;</strong>
<strong> Command backCommand;</strong>
<strong> Command okCommand;</strong>
<strong> SampleCanvas sample; // Instance of sample canvas</strong>

<strong>List itemMenu;</strong>
<strong> List exclusiveList;</strong>
<strong> List multipleList;</strong>
<strong> TextBox textbox;</strong>
<strong> Ticker ticker;</strong>
<strong> Alert alert;</strong>
<strong> Form form;</strong>
<strong> StringItem stringItem;</strong>
<strong> ImageItem imageItem;</strong>
<strong> Image image;</strong>
<strong> TextField textItem;</strong>
<strong> ChoiceGroup choiceItem;</strong>
<strong> DateField dateItem;</strong>
<strong> Gauge gaugeItem;</strong>

<strong>public SampleCanvasMIDlet() {</strong>
<strong> display = Display.getDisplay(this);</strong>
<strong> exitCommand = new Command(”Exit”, Command.EXIT, 1);</strong>
<strong> backCommand = new Command(”Back”, Command.BACK, 2);</strong>
<strong> okCommand = new Command(”OK”, Command.OK, 3);</strong>

<strong>ticker = new Ticker(”Select an item to display”);</strong>
<strong> itemMenu = new List(null, Choice.IMPLICIT);</strong>
<strong> itemMenu.append(”Canvas”, null);</strong>
<strong> itemMenu.append(”Form”, null);</strong>
<strong> itemMenu.append(”Alert”, null);</strong>
<strong> itemMenu.append(”TextBox”, null);</strong>
<strong> itemMenu.append(”Exclusive List”, null);</strong>
<strong> itemMenu.append(”Multiple Choice”, null);</strong>

<strong> itemMenu.addCommand(exitCommand);</strong>
<strong> itemMenu.setTicker(ticker);</strong>
<strong> display.setCurrent(itemMenu);</strong>
<strong> }</strong>

<strong>public void startApp () {</strong>
<strong> }</strong>

<strong>public void destroyApp (boolean unconditional) {</strong>
<strong> }</strong>

<strong>public void pauseApp () {</strong>
<strong> }</strong>

<strong>public void commandAction(Command c, Displayable s) {</strong>
<strong> if (c == backCommand) {</strong>
<strong> display.setCurrent(itemMenu);</strong>
<strong> } else if (s == itemMenu) {</strong>
<strong> if (c == List.SELECT_COMMAND) {</strong>
<strong> // Handle the item sected to be displayed</strong>
<strong> int i = itemMenu.getSelectedIndex();</strong>
<strong> switch (i) {</strong>
<strong> case 0: // Show Sample canvas</strong>
<strong> display.setCurrent(getCanvas());</strong>
<strong> break;</strong>
<strong> case 1: // Show the form</strong>
<strong> display.setCurrent(getForm());</strong>
<strong> break;</strong>
<strong> case 2: // Show an alert</strong>
<strong> display.setCurrent(getAlert(”Warning”, </strong>
<strong> “This window will dismiss in two seconds.”));</strong>
<strong> break;</strong>
<strong> case 3: // Show TextBox</strong>
<strong> display.setCurrent(getTextBox());</strong>
<strong> break;</strong>
<strong> case 4: // Show Exclusive list</strong>
<strong> display.setCurrent(getExclusiveList());</strong>
<strong> break;</strong>
<strong> case 5: // Show Multiple List</strong>
<strong> display.setCurrent(getMultipleList());</strong>
<strong> break;</strong>
<strong> }</strong>
<strong> } else if (c == exitCommand) {</strong>
<strong> notifyDestroyed();</strong>
<strong> }</strong>
<strong> } else if (s == exclusiveList) {</strong>
<strong> int i = exclusiveList.getSelectedIndex();</strong>
<strong> String value = exclusiveList.getString(i);</strong>
<strong> alert = getAlert(”Border selected:”, value);</strong>
<strong> display.setCurrent(alert, itemMenu);</strong>
<strong> } else if (s == multipleList) {</strong>
<strong> StringBuffer b = new StringBuffer();</strong>
<strong> for (int i = 0; i &lt;= 2; i++) {</strong>
<strong> if (multipleList.isSelected(i)) {</strong>
<strong> b.append(multipleList.getString(i));</strong>
<strong> b.append(”n”);</strong>
<strong> }</strong>
<strong> }</strong>
<strong> alert = getAlert(”Colors selected:”, b.toString());</strong>
<strong> display.setCurrent(alert, itemMenu);</strong>
<strong> } else if (s == textbox) {</strong>
<strong> String value = textbox.getString();</strong>
<strong> alert = getAlert(”Text Entered:”, value);</strong>
<strong> display.setCurrent(alert, itemMenu);</strong>
<strong> } else if (s == form) {</strong>
<strong> alert = getAlert(”Image options saved”, “”);</strong>
<strong> display.setCurrent(alert, itemMenu);</strong>
<strong> }</strong>
<strong> }</strong>

<strong>SampleCanvas getCanvas() {</strong>
<strong> if (sample == null) {</strong>
<strong> sample = new SampleCanvas();</strong>
<strong> sample.addCommand(backCommand);</strong>
<strong> sample.setCommandListener(this);</strong>
<strong> }</strong>
<strong> return sample;</strong>
<strong> }</strong>

<strong>List getExclusiveList() {</strong>
<strong> if (exclusiveList == null) {</strong>
<strong> exclusiveList = new List(”Border Style”, Choice.EXCLUSIVE);</strong>
<strong> exclusiveList.append(”None”, null);</strong>
<strong> exclusiveList.append(”Plain”, null);</strong>
<strong> exclusiveList.append(”Fancy”, null);</strong>
<strong> exclusiveList.addCommand(backCommand);</strong>
<strong> exclusiveList.addCommand(okCommand);</strong>
<strong> exclusiveList.setCommandListener(this);</strong>
<strong> }</strong>
<strong> return exclusiveList;</strong>
<strong> }</strong>

<strong>List getMultipleList() {</strong>
<strong> if (multipleList == null) {</strong>
<strong> multipleList = new List(”Colors to mix”, Choice.MULTIPLE);</strong>
<strong> multipleList.append(”Red”, null);</strong>
<strong> multipleList.append(”Green”, null);</strong>
<strong> multipleList.append(”Blue”, null);</strong>
<strong> multipleList.addCommand(backCommand);</strong>
<strong> multipleList.addCommand(okCommand);</strong>
<strong> multipleList.setCommandListener(this);</strong>
<strong> }</strong>
<strong> return multipleList;</strong>
<strong> }</strong>

<strong>TextBox getTextBox() {</strong>
<strong> if (textbox == null) {</strong>
<strong> textbox = new TextBox(”Enter a phone number”,””, 40,</strong>
<strong> TextField.PHONENUMBER);</strong>
<strong> textbox.addCommand(backCommand);</strong>
<strong> textbox.addCommand(okCommand);</strong>
<strong> textbox.setCommandListener(this);</strong>
<strong> }</strong>
<strong> return textbox;</strong>
<strong> }</strong>

<strong>Alert getAlert(String title, String contents) {</strong>
<strong> if (alert == null) {</strong>
<strong> alert = new Alert(title);</strong>
<strong> alert.setType(AlertType.WARNING);</strong>
<strong> alert.setTimeout(2000);</strong>
<strong> alert.setString(contents); </strong>
<strong> } else {</strong>
<strong> alert.setTitle(title);</strong>
<strong> alert.setString(contents);</strong>
<strong> }</strong>
<strong> return alert;</strong>
<strong> }</strong>

<strong>Form getForm() {</strong>
<strong> if (form == null) {</strong>
<strong> form = new Form(”Options”);</strong>

<strong>try {</strong>
<strong> image = Image.createImage(”/images/PhotoAlbum.png”);</strong>
<strong> imageItem = new ImageItem(”Preview:”, image, </strong>
<strong> ImageItem.LAYOUT_NEWLINE_BEFORE, “Mountain”);</strong>
<strong> form.append(imageItem);</strong>
<strong> } catch ( ex) {</strong>
<strong> }</strong>

<strong>textItem = new TextField(”Title:”, “Mountain”, 32,</strong>
<strong> TextField.ANY);</strong>
<strong> form.append(textItem);</strong>

<strong>dateItem = new DateField(”Date:”, DateField.DATE);</strong>
<strong> dateItem.setDate(new java.util.Date());</strong>
<strong> form.append(dateItem);</strong>

<strong>choiceItem = new ChoiceGroup(”Size:”, Choice.EXCLUSIVE);</strong>
<strong> choiceItem.append(”Small”, null);</strong>
<strong> choiceItem.append(”Large”, null);</strong>
<strong> form.append(choiceItem);</strong>

<strong>gaugeItem = new Gauge(”Speed:”, true, 10, 5);</strong>
<strong> form.append(gaugeItem);</strong>

<strong> form.addCommand(okCommand);</strong>
<strong> form.setCommandListener(this);</strong>
<strong> }</strong>
<strong> return form;</strong>
<strong> }</strong>

<strong>class SampleCanvas extends Canvas {</strong>
<strong> int x, y; // Location of cross hairs</strong>
<strong> String event = “”; // Last key event type</strong>
<strong> int keyCode; // Last keyCode pressed</strong>
<strong> Font font; // Font used for drawing text</strong>
<strong> int fh; // height of the font</strong>
<strong> int w, h; // width and height of the canvas</strong>
<strong> int titleHeight; // Height of the title</strong>
<strong> int pieSize; // Size of the Pie chart used for width and height</strong>
<strong> int barSize; // Size of the Bar chart used for width and height</strong>
<strong> int eventHeight; // Size of the event region</strong>
<strong> int pad; // Padding used between items</strong>

<strong>SampleCanvas() {</strong>
<strong> w = getWidth();</strong>
<strong> h = getHeight();</strong>
<strong> font = Font.getFont(Font.FACE_SYSTEM,</strong>
<strong> Font.STYLE_PLAIN, Font.SIZE_SMALL);</strong>
<strong> fh = font.getHeight();</strong>

<strong>/* Compute the sizes of the bar and pie charts</strong>
<strong> * It should use all the space except for the title</strong>
<strong> * and event regions.</strong>
<strong> * Don’t let the charts get too small</strong>
<strong> */</strong>
<strong> pad = 2;</strong>
<strong> titleHeight = fh + pad * 2;</strong>
<strong> eventHeight = fh * 3;</strong>
<strong> barSize = h – (titleHeight + pad) – (eventHeight + pad);</strong>
<strong> if (barSize &lt; 20) // Don’t let them get too small</strong>
<strong> barSize = 20;</strong>
<strong> if (barSize &gt; (w – pad) / 2) // Shrink to 1/2 width</strong>
<strong> barSize = (w – pad) / 2;</strong>
<strong> pieSize = barSize;</strong>
<strong> }</strong>

<strong>protected void keyPressed(int key) {</strong>
<strong> keyCode = key;</strong>
<strong> event = “Pressed”;</strong>
<strong> handleActions(key);</strong>
<strong> repaint();</strong>
<strong> }</strong>

<strong>protected void keyRepeated(int key) {</strong>
<strong> keyCode = key;</strong>
<strong> event = “Repeated”;</strong>
<strong> handleActions(key);</strong>
<strong> repaint();</strong>
<strong> }</strong>

<strong>protected void keyReleased(int key) {</strong>
<strong> keyCode = key;</strong>
<strong> event = “Released”;</strong>
<strong> repaint();</strong>
<strong> }</strong>

<strong>protected void pointerPressed(int x, int y) {</strong>
<strong> this.x = x;</strong>
<strong> this.y = y;</strong>
<strong> keyCode = 0;</strong>
<strong> event = “Pressed”;</strong>
<strong> repaint();</strong>
<strong> }</strong>
<strong> protected void pointerReleased(int x, int y) {</strong>
<strong> this.x = x;</strong>
<strong> this.y = y;</strong>
<strong> keyCode = 0;</strong>
<strong> event = “Released”;</strong>
<strong> repaint();</strong>
<strong> }</strong>

<strong>protected void pointerDragged(int x, int y) {</strong>
<strong> this.x = x;</strong>
<strong> this.y = y;</strong>
<strong> keyCode = 0;</strong>
<strong> event = “Dragged”;</strong>
<strong> }</strong>

<strong>void handleActions(int keyCode) {</strong>
<strong> int action = getGameAction(keyCode);</strong>
<strong> switch (action) {</strong>
<strong> case LEFT:</strong>
<strong> x -= 1;</strong>
<strong> break;</strong>
<strong> case RIGHT:</strong>
<strong> x += 1;</strong>
<strong> break;</strong>
<strong> case UP:</strong>
<strong> y -= 1;</strong>
<strong> break;</strong>
<strong> case DOWN:</strong>
<strong> y += 1;</strong>
<strong> break;</strong>
<strong> }</strong>
<strong> }</strong>

<strong>protected void paint(Graphics g) {</strong>

<strong> g.setGrayScale(255);</strong>
<strong> g.fillRect(0, 0, w, h);</strong>

<strong>x = (x &lt; 0) ? w – 1 : x;</strong>
<strong> y = (y &lt; 0) ? h – 1 : y;</strong>
<strong> x = x % w;</strong>
<strong> y = y % h;</strong>

<strong>// Draw Fill and outline for background of title Text</strong>
<strong> int swidth = pad * 2 + font.stringWidth(”Pie and Bar Samples”);</strong>
<strong> int title_x = (w – swidth)/2;</strong>

<strong> g.fillRoundRect(title_x, 0, swidth, fh, 5, 5);</strong>
<strong> g.setGrayScale(0);</strong>
<strong> g.drawRoundRect(title_x, 0, swidth, fh, 5, 5);</strong>

<strong>// Sample Text</strong>
<strong> g.setColor(0, 0, 0);</strong>
<strong> g.drawString(”Pie and Bar Samples”, </strong>
<strong> title_x + pad, pad, Graphics.TOP|Graphics.LEFT);</strong>

<strong>// Translate to below title text</strong>
<strong> g.translate(0, titleHeight + pad);</strong>

<strong> * Draw pie chart on the left side</strong>
<strong> * using the barSize for width and height</strong>
<strong> */</strong>
<strong> g.setColor(255, 0, 0);</strong>
<strong> g.fillArc(0, 0, pieSize, pieSize, 45, 270);</strong>
<strong> g.setColor(0, 255, 0);</strong>
<strong> g.fillArc(0, 0, pieSize, pieSize, 0, 45);</strong>
<strong> g.setColor(0, 0, 255);</strong>
<strong> g.fillArc(0, 0, pieSize, pieSize, 0, -45);</strong>
<strong> g.setColor(0);</strong>
<strong> g.drawArc(0, 0, pieSize, pieSize, 0, 360);</strong>

<strong>// Draw Bar chart on right side of the display</strong>
<strong> // scale the values to the pieSize maximum value</strong>
<strong> int yorig = barSize;</strong>
<strong> int h1 = barSize / 3, h2 = barSize / 2, h3 = barSize;</strong>
<strong> int avg = (h1 + h2 + h3) / 3;</strong>

<strong>// Move over to draw Bar chart</strong>
<strong> g.translate((w + pad) / 2, 0);</strong>

<strong>int bw = pieSize / 7;</strong>
<strong> if (bw &lt; 2)</strong>
<strong> bw = 2;</strong>
<strong> g.setColor(255, 0, 0);</strong>
<strong> g.fillRect(bw*1, yorig-h1, bw+1, h1);</strong>
<strong> g.setColor(0, 255, 0);</strong>
<strong> g.fillRect(bw*3, yorig-h2, bw+1, h2);</strong>
<strong> g.setColor(0, 0, 255);</strong>
<strong> g.fillRect(bw*5, yorig-h3, bw+1, h3);</strong>
<strong> g.setColor(0);</strong>
<strong> g.drawRect(bw*1, yorig-h1, bw, h1);</strong>
<strong> g.drawRect(bw*3, yorig-h2, bw, h2);</strong>
<strong> g.drawRect(bw*5, yorig-h3, bw, h3);</strong>

<strong>// Draw axis for bar chart.</strong>
<strong> g.setGrayScale(0);</strong>
<strong> g.drawLine(0, 0, 0, yorig);</strong>
<strong> g.drawLine(0, yorig, barSize, yorig);</strong>
<strong> g.setStrokeStyle(Graphics.DOTTED);</strong>
<strong> g.drawLine(0, yorig – avg, barSize, yorig-avg);</strong>
<strong> g.setStrokeStyle(Graphics.SOLID);</strong>

<strong>// Restore to left and move down</strong>
<strong> g.translate(-(w + pad) / 2, pieSize + pad);</strong>

<strong>// Draw the key and pointer status</strong>
<strong> g.setColor(128, 128, 128);</strong>
<strong> int col1 = font.stringWidth(”Action:”);</strong>
<strong> g.drawString(”Key: “, col1, 0,</strong>
<strong> Graphics.TOP|Graphics.RIGHT);</strong>
<strong> g.drawString(keyString(keyCode), col1, 0,</strong>
<strong> Graphics.TOP|Graphics.LEFT);</strong>
<strong> g.drawString(”Action:”, col1, fh,</strong>
<strong> Graphics.TOP|Graphics.RIGHT);</strong>
<strong> g.drawString(actionString(keyCode), col1, fh,</strong>
<strong> Graphics.TOP|Graphics.LEFT);</strong>
<strong> g.drawString(”Event:”, col1, fh*2,</strong>
<strong> Graphics.TOP|Graphics.RIGHT);</strong>
<strong> g.drawString(event, col1, fh*2,</strong>
<strong> Graphics.TOP|Graphics.LEFT);</strong>
<strong> int col2 = 80;</strong>
<strong> g.drawString(”x:”, col2, 0,</strong>
<strong> Graphics.TOP|Graphics.RIGHT);</strong>
<strong> g.drawString(Integer.toString(x), col2, 0,</strong>
<strong> Graphics.TOP|Graphics.LEFT);</strong>
<strong> g.drawString(”y:”, col2, fh,</strong>
<strong> Graphics.TOP|Graphics.RIGHT);</strong>
<strong> g.drawString(Integer.toString(y), col2, fh,</strong>
<strong> Graphics.TOP|Graphics.LEFT);</strong>

<strong>// Restore the origin and draw the crosshairs on top</strong>
<strong> g.translate(-g.getTranslateX(), -g.getTranslateY());</strong>

<strong>g.setColor(0, 0, 0);</strong>
<strong> g.drawLine(x, y – 5, x, y + 5);</strong>
<strong> g.drawLine(x – 5, y, x + 5, y);</strong>
<strong> }</strong>

<strong>String keyString(int keyCode) {</strong>
<strong> if (keyCode == 0) {</strong>
<strong> return “”;</strong>
<strong> }</strong>
<strong> return Integer.toString(keyCode);</strong>
<strong> }</strong>

<strong>String actionString(int keyCode) {</strong>
<strong> if (keyCode == 0) {</strong>
<strong> return “”;</strong>
<strong> }</strong>

<strong>int action = getGameAction(keyCode);</strong>
<strong> switch (action) {</strong>
<strong> case FIRE:</strong>
<strong> return “Fire”;</strong>
<strong> case LEFT:</strong>
<strong> return “Left”;</strong>
<strong> case RIGHT:</strong>
<strong> return “Right”;</strong>
<strong> case DOWN:</strong>
<strong> return “Down”;</strong>
<strong> case UP:</strong>
<strong> return “Up”;</strong>
<strong> case GAME_A:</strong>
<strong> return “Game A”;</strong>
<strong> case GAME_B:</strong>
<strong> return “Game B”;</strong>
<strong> case GAME_C:</strong>
<strong> return “Game C”;</strong>
<strong> case GAME_D:</strong>
<strong> return “Game D”;</strong>
<strong> case 0:</strong>
<strong> return “”;</strong>
<strong> default:</strong>
<strong> return Integer.toString(action);</strong>
<strong> }</strong>
<strong> }</strong>

Tinggalkan Balasan

Isikan data di bawah atau klik salah satu ikon untuk log in:


You are commenting using your account. Logout / Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout / Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout / Ubah )

Foto Google+

You are commenting using your Google+ account. Logout / Ubah )

Connecting to %s

Zoemalang's community

ujung malang adalah Sebuah desa yang hilang terganti dengan ujung harapan

YoYo Games Blog Feed

Ujung malang adalah Sebuah desa yang hilang terganti dengan ujung harapan

Dealer Termurah

Menjual Segala Jenis Motor Baru Di Indonesia Cash Maupun Kredit

%d blogger menyukai ini: