http://www.jexp.ru/index.php?action=history&feed=atom&title=Java_Tutorial%2FJ2ME%2FLine 2026-04-22T03:26:38Z История изменений этой страницы в вики MediaWiki 1.30.0 http://www.jexp.ru/index.php?title=Java_Tutorial/J2ME/Line&diff=4089&oldid=prev 2010-06-01T04:58:07Z

<p>1 версия</p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr style="vertical-align: top;" lang="ru"> <td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td> <td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 04:58, 1 июня 2010</td> </tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div> </td></tr></table>

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<p></p> <p><b>Новая страница</b></p><div>== Draw lines ==<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;!-- start source code --&gt;<br /> <br /> &lt;source lang=&quot;java&quot;&gt;<br /> import javax.microedition.lcdui.Canvas;<br /> import javax.microedition.lcdui.Display;<br /> import javax.microedition.lcdui.Graphics;<br /> import javax.microedition.midlet.MIDlet;<br /> public class GraphicsMIDlet extends MIDlet {<br /> private Display display;<br /> protected void startApp() {<br /> Canvas canvas = new LineCanvas();<br /> display = Display.getDisplay(this);<br /> display.setCurrent(canvas);<br /> }<br /> protected void pauseApp() {<br /> }<br /> protected void destroyApp(boolean unconditional) {<br /> }<br /> }<br /> class LineCanvas extends Canvas {<br /> public void paint(Graphics g) {<br /> int width = getWidth();<br /> int height = getHeight();<br /> g.drawLine(0, 0, width - 1, height - 1);<br /> }<br /> }&lt;/source&gt;<br /> <br /> <br /> &lt;!-- end source code --&gt;<br /> <br /> <br /> <br /> <br /> <br /> == Plot 2D ==<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;!-- start source code --&gt;<br /> <br /> &lt;source lang=&quot;java&quot;&gt;<br /> import javax.microedition.lcdui.Canvas;<br /> import javax.microedition.lcdui.rumand;<br /> import javax.microedition.lcdui.rumandListener;<br /> import javax.microedition.lcdui.Display;<br /> import javax.microedition.lcdui.Displayable;<br /> import javax.microedition.lcdui.Graphics;<br /> import javax.microedition.midlet.MIDlet;<br /> public class Plot2DMIDlet extends MIDlet implements CommandListener {<br /> private Command exitCommand;<br /> Display display;<br /> int[] line1 = { 80, 20, 60, 70, 50, 20 };<br /> int[] line2 = { 20, 10, 50, 60, 90, 60 };<br /> public void startApp() {<br /> int maxX = 10;<br /> int maxY = 100;<br /> Display display = Display.getDisplay(this);<br /> Displayable d = new Plot2DCanvas(line1, line2, maxX, maxY);<br /> exitCommand = new Command(&quot;Exit&quot;, Command.EXIT, 1);<br /> d.addCommand(exitCommand);<br /> d.setCommandListener(this);<br /> display.setCurrent(d);<br /> }<br /> public void pauseApp() {<br /> }<br /> public void destroyApp(boolean unconditional) {<br /> }<br /> public void commandAction(Command c, Displayable s) {<br /> notifyDestroyed();<br /> }<br /> }<br /> class Plot2DCanvas extends Canvas {<br /> int line1[];<br /> int line2[];<br /> int maxX, maxY;<br /> Plot2DCanvas(int[] line1, int[] line2, int maxX, int maxY) {<br /> this.line1 = line1;<br /> this.line2 = line2;<br /> this.maxX = maxX;<br /> this.maxY = maxY;<br /> }<br /> public void paint(Graphics g) {<br /> int width = this.getWidth();<br /> int height = this.getHeight();<br /> g.setGrayScale(0);<br /> g.drawLine(0, height, 0, 0);<br /> g.drawLine(0, height - 1, width, height - 1);<br /> int deltaX = width / maxX;<br /> int deltaY = height / maxY;<br /> g.setStrokeStyle(Graphics.DOTTED);<br /> for (int i = 0; i &lt; line1.length - 1; i++) {<br /> g.drawLine(deltaX * i, height - deltaY * line1[i], deltaX * (i + 1), height - deltaY<br /> * line1[i + 1]);<br /> }<br /> }<br /> }&lt;/source&gt;<br /> <br /> <br /> &lt;!-- end source code --&gt;</div>