added text prompts

Author: dattazigzag

dither_it.pde

@@ -4,6 +4,8 @@ PImage img;
 boolean imageLoaded = false;
 String message = "Please Press L to load an image";
 
+int ditherIdx = 0;
+
 void setup() {
   size(400, 400);  // Initial size, will be adjusted
   surface.setResizable(true);
@@ -17,65 +19,56 @@ void draw() {
 
   if (imageLoaded && img != null) {
     PImage processed = img;
-    processed = Dithering.apply(processed, Dithering.BAYER_8x8);
+
+    if (ditherIdx == 0) {
+      processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_2x2);
+      //label = "BAYER_2x2";
+    }
+    if (ditherIdx == 1) {
+      processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_4x4);
+      //label = "BAYER_4x4";
+    }
+    if (ditherIdx == 2) {
+      processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_8x8);
+      //label = "BAYER_8x8";
+    }
+
+    //processed = Dithering.apply(processed, Dithering.BAYER_8x8);
     image(processed, 0, 0, width, height);
 
     textAlign(CENTER, CENTER);
     textSize(16);
     rectMode(CENTER);
     noStroke();
     fill(0);
-    rect(width/2, height-20, 480, 30);
+    rect(width/2, height-60, 400, 70);
     fill(255);
     textSize(12);
-    text("Press L to a New Image or Press S to save the current Dithered image.\nUse the left or right arrow keys to swap between 3 different dither effects.", width/2, height-20);
+    text("Press L to a New Image\nUse the left or right arrow keys to swap between 3 different dither effects.\nPress S to save the current Dithered image.\nPress ESC to close the window.", width/2, height-60);
   } else {
     fill(255);
     textSize(16);
     text(message, width/2, height/2);
   }
-
-
-  //PImage processed = image;
-  //processed = Dithering.apply(processed, Dithering.BAYER_8x8);
-  //String label = "";
-
-  //if (keyPressed && key == ' ') {
-  //  processed = Grayscale.apply(processed);
-  //}
-
-  //if (mousePressed == true) {
-  //  image(image, 0, 0);
-  //} else {
-
-  //  if (index == -1) {
-  //    processed = Dithering.apply(processed);
-  //    //label = "BAYER_4x4 on default";
-  //  }
-
-  //  if (index == 0) {
-  //    processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_2x2);
-  //    //label = "BAYER_2x2";
-  //  }
-  //  if (index == 1) {
-  //    processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_4x4);
-  //    //label = "BAYER_4x4";
-  //  }
-
-  //  if (index == 2) {
-  //    processed = Dithering.apply(processed, Dithering.Algorithm.BAYER_8x8);
-  //    //label = "BAYER_8x8";
-  //  }
-  //}
-
-  //image(processed, 0, 0);
-
-  //fill(0);
-  //text(label, width/2 - textWidth(label)/2, 30);
 }
 
 
 void keyPressed() {
+  if (key == CODED) {
+    if (keyCode == RIGHT) {
+      ditherIdx= ditherIdx+1;
+    }
+    if (keyCode == LEFT) {
+      ditherIdx= ditherIdx-1;
+    }
+    if (ditherIdx < 1) {
+      ditherIdx = 3;
+    }
+    if (ditherIdx > 2) {
+      ditherIdx = 0;
+    }
+  }
+
   if (key == 'l' || key == 'L') {
     selectInput("Select an image file:", "fileSelected");
   }