How to scroll a SVGImage?
Im using JSR226 in my Final year Project.
I need 2 know how 2 scroll a SVGImage which is larger than screen size.
is it possible?
As a matter of fact, i have found and used some code for the same prob using the canvas and ordinary images plus i tried adding some Sprites as well (without JSR 226)
here's the code, So it ll be a great help if some can alter this code to accompanythe SVGImage :)
I need it ASAP, plz some1 help me :)
<code>
package View;
import Controller.*;
import java.io.IOException;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.game.*;
public class ShowMap extends Canvas implements CommandListener {
Form form;
Command back;
Image imgPark;
Image imgZoo;
Sprite sprPark;
Sprite sprZoo;
int screenWidth = this.getWidth();
int screenHeight = this.getHeight();
int imageWidth;
int imageHeight;
int x;
int y;
int dx = 0;
int dy = 0;
Image mapImage;
Image screenBuff;
Image copy;
Graphics bufferGraphics;
Graphics imageGraphics;
Displayable prev;
MIDlet mdlMain;
public ShowMap() {
}
public ShowMap(MIDlet m,Displayable d, String RegionName) throws Exception{
mdlMain = m;
prev = d;
MapHandler mh = new MapHandler();
mapImage = mh.getRegionalMap(RegionName);
setScrollable(mapImage);
imgPark = Image.createImage("/Images/Symbols/park.png");
imgZoo = Image.createImage("/Images/Symbols/zoo.png");
sprPark = new Sprite(imgPark);
sprZoo = new Sprite(imgZoo);
this.setTitle(RegionName +" Map");
back = new Command("Back",Command.BACK,0);
this.addCommand(back);
this.setCommandListener(this);
}
private void setScrollable(Image mapImage){
imageWidth = mapImage.getWidth();
imageHeight = mapImage.getHeight();
x = (screenWidth - imageWidth)/ 2;
y = (screenHeight - imageHeight) / 2;
//copy.createImage(imageWidth,imageHeight);
screenBuff = Image.createImage(screenWidth, screenHeight);
bufferGraphics = screenBuff.getGraphics();
bufferGraphics.setColor(0,0,0);
bufferGraphics.fillRect(0,0,screenWidth,screenHeight);
}
public Canvas getDisplayable(){
return this;
}
public void commandAction(Command c, Displayable d) {
if(c==back){
Display.getDisplay(mdlMain).setCurrent(prev);
}
}
protected void paint(Graphics g) {
bufferGraphics.drawImage(mapImage,x,y,bufferGraphics.TOP|bufferGraphics.LEFT);
//imageGraphics.setStrokeStyle(Graphics.DOTTED);
//imageGraphics.drawLine(10,10,50,50);
g.drawImage(screenBuff,0,0,Graphics.TOP|Graphics.LEFT);
sprPark.setRefPixelPosition(10,20);
sprPark.paint(g);
//g.drawString("tesing",x,y,Graphics.TOP|Graphics.LEFT);
}
protected void moveImage(int key){
switch(key){
case -1:
if (y < 0) y++;
break;
case -2:
if (y > screenHeight - imageHeight) y--;
break;
case -3:
if (x < 0) x++;
break;
case -4:
if (x > screenWidth - imageWidth) x--;
break;
}
repaint();
}
protected void keyPressed(int keyCode) {
moveImage(keyCode);
}
