notizheftanzeiger/Slide.pde

PImage Slide(int notebookID, int pageNumber) {
  PImage leftPage, rightPage;
  PGraphics result;
  String path = notebooks.get(notebookID).notebookpath + "/";
  leftPage = loadImage(path + notebooks.get(notebookID).imagepaths[pageNumber]);
  rightPage = loadImage(path + notebooks.get(notebookID).imagepaths[pageNumber+1]);
  result = createGraphics(width, height);
  result.beginDraw();
  result.image(leftPage, 0, 0, result.width/2, result.height);
  result.image(rightPage, result.width/2, 0, result.width/2, result.height);
  result.endDraw();
  return result.get();
}


void nextSlide() {
  transition = true;
  startTransitionTime = millis();
  
  if (mode == NORMAL) {
    currentSlideNo+=2;
    if (currentSlideNo > notebooks.get(currentNotebookNo).imagepaths.length-1) {
      currentSlideNo = 0;
      currentNotebookNo++;
      if(currentNotebookNo == notebooks.size()) currentNotebookNo = 0;
    }
  } else if (mode == RANDOM) {
    currentNotebookNo = (int)random(notebooks.size());
    currentSlideNo = (int)random(notebooks.get(currentNotebookNo).imagepaths.length-1);
    if (currentSlideNo %2 != 0) {
      currentSlideNo -= 1;
    }
  }
  
  nextSlide = Slide(currentNotebookNo, currentSlideNo);
  //currentSlide = Slide(currentNotebookNo, currentSlideNo);
}