28. Oktober 2011

A simple camera application with zoom and different shapes called PCam. Download it as OSX application: Download
Code:

<pre>//PixelCam by Joachim Hummel
//24.11.2011
import processing.video.*;

//Load images
PImage leathercam;
PImage photobutton;
PImage changebutton;
PImage innerchangebutton;

//V's
int n;
int m;
int i=0;
int numPixels;
int blockSize = 10;
int brx;
int bry;
int nb_images;
int ausloeser = 0;
int form = 1;
int cbx;
int cby;
float bsize;

//Capture Camera
color myMovieColors[];
Capture myMovie;

//Load Slider
Slider sliderR = null;




void setup() {
  
  //Load Images
  leathercam = loadImage("cam.png");
  photobutton = loadImage("photobutton.png");
  changebutton = loadImage("changebutton.png");
  innerchangebutton = loadImage("innercb.png");
  nb_images=0;
  
  //Slider
  sliderR = new Slider(width/2-150,height/8*7+15,300,20,0);
  
  //Canvas Size
  size(800, 600, P2D);
  //Camera Settings
  myMovie = new Capture(this, width/blockSize, height/blockSize);
  numPixels = width / blockSize;
  myMovieColors = new color[numPixels * numPixels];
  
  //Button Coord's
  brx = width/2-240;
  bry = height/8*7+5;
  cbx = width/2+215;
  cby = height/8*7+25;
}

//Read Pixels
void captureEvent(Capture c) {
  c.read();
  c.loadPixels();
  
  for (int j = 0; j < numPixels; j++) {
    for (int i = 0; i < numPixels; i++) {
      myMovieColors[j*numPixels + i] = c.get(i, j);
    }
  }
}

//DRAW

void draw()  {
  
bsize = sliderR.pos() * 20+10;
blockSize = (int)bsize;
background(0);

//Pixelforms
pushMatrix();
translate(-sliderR.pos()*width,-sliderR.pos()*height);
  for (int j = 0; j < numPixels; j++) {
    for (int i = 0; i < numPixels; i++) {
      fill(myMovieColors[j*numPixels + i]);
      noStroke();
      
      if (form == 1)
        rect(i*blockSize, j*blockSize, blockSize-1, blockSize-1);
      else if (form == 2)
        ellipse(i*blockSize, j*blockSize, blockSize, blockSize);
      else if (form == 3)
        triangle(i*blockSize, j*blockSize+blockSize,i*blockSize+blockSize/2, j*blockSize,i*blockSize+blockSize, j*blockSize+blockSize);
      else if (form == 4)
        triangle(i*blockSize, j*blockSize,i*blockSize+blockSize, j*blockSize,i*blockSize, j*blockSize+blockSize);
      else if (form ==5)
      {
        beginShape();
          vertex(i*blockSize+blockSize/2, j*blockSize);
          vertex(i*blockSize+blockSize, j*blockSize+blockSize/2);
          vertex(i*blockSize+blockSize/2, j*blockSize+blockSize);
          vertex(i*blockSize, j*blockSize+blockSize/2);
        endShape();
      }
      else if (form ==6)
      {
        beginShape();
          vertex(i*blockSize+blockSize/4, j*blockSize);
          vertex(i*blockSize+blockSize/4*3, j*blockSize);
          vertex(i*blockSize+blockSize, j*blockSize+blockSize/4);
          vertex(i*blockSize+blockSize, j*blockSize+blockSize/4*3);
          vertex(i*blockSize+blockSize/4*3, j*blockSize+blockSize);
          vertex(i*blockSize+blockSize/4, j*blockSize+blockSize);
          vertex(i*blockSize, j*blockSize+blockSize/4*3);
          vertex(i*blockSize, j*blockSize+blockSize/4);
        endShape();
      }
    }
  }
popMatrix();

//AUSLÖSER
if(ausloeser >=1)
{
  pushStyle();
  fill(0,80);
  rect (0,0,width,height);
  popStyle();
  ausloeser=0;
}

//GUI
image(leathercam,0,0,width,height);
sliderR.draw();
image(photobutton,brx,bry,40,40);
pushMatrix();
  translate(cbx,cby);
  imageMode(CENTER);
  image(changebutton,0,0,50,50);
    if(form ==1)
      rotate(radians(0));
    else if(form ==2)
      rotate(radians(-45));
    else if(form ==3)
      rotate(radians(-90));
    else if(form ==4)
      rotate(radians(-135));
    else if(form ==5)
      rotate(radians(-180));
    else if(form ==6)
      rotate(radians(-225));
  image(innerchangebutton,0,0,40,40);
  imageMode(CORNER);
popMatrix();

pushStyle();
stroke(200);
strokeWeight(2);
noFill();
popStyle();


}

void mousePressed()
{
  //CAPTURE SCREEN
  if (mouseX > brx && mouseX < brx+40 && mouseY < bry+40 && mouseY > bry)
  {
  nb_images++;
  PImage pg = get(12, 8, width-24, height/6*5-8);
  pg.save("pcam_picture_" + nb_images + ".png");
  ausloeser=1;
  }
  
//CHANGE FORM
    if (mouseX > cbx-20 && mouseX < cbx+20 && mouseY < cby+20 && mouseY > cby-20)
  {
      if ( form < 6)
      form = form+1;
      else if (form ==6)
      form = 1;
  }
  
  
  //DOUBLE CLICK
  if(i==0){
    m = millis();
  }
  if(mouseButton==LEFT){
    i++;
    if(i==2)
    n = millis();
  }
  
  
  sliderR.mousePos(mouseX,mouseY,true);
}

void mouseDragged()
{
  sliderR.mousePos(mouseX,mouseY,true);
}

void mouseReleased(){
  if(i==2 && n-m < 300){
    println("Zoom Reset");
    sliderR._pos = 0;
    i=0;
  }else if(i>1){
    i=0;
  }
}