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donut.pjs
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donut.pjs
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/**********************************************************************
TERMS OF USE - DONUT - Radial Navigator
Open source under the BSD License.
copyright (c) 2009 by Michael Aufreiter
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of the author nor the names of contributors may
be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************/
color[] colors = new color[12];
colors[0] = color(171, 199, 49);
colors[1] = color(162, 195, 85);
colors[2] = color(154, 191, 123);
colors[3] = color(147, 186, 161);
colors[4] = color(141, 181, 200);
colors[5] = color(134, 162, 169);
colors[6] = color(128, 142, 137);
colors[7] = color(122, 122, 104);
colors[8] = color(177, 102, 73);
colors[9] = color(131, 127, 67);
colors[10] = color(157, 175, 55);
// alternative colors
// ****************************************
// colors[0] = color(234, 43, 95);
// colors[1] = color(166, 192, 59);
// colors[2] = color(89, 148, 33);
// colors[3] = color(54, 149, 104);
// colors[4] = color(26, 97, 154);
//
// colors[5] = color(234, 43, 95);
// colors[6] = color(166, 192, 59);
// colors[7] = color(89, 148, 33);
// colors[8] = color(54, 149, 104);
// colors[9] = color(26, 97, 154);
// colors[10] = color(234, 43, 95);
color LABEL_COLOR = color(150);
color HIGHLIGHTED_LABEL_COLOR = color(55);
color DONUT_BACKGROUND = color(255); // color(28,35,34);
color BACKGROUND = color(244);// color(21,27,27);
// global constants
float STROKE_WEIGHT_COLLAPSED = 50;
float STROKE_WEIGHT_EXPANDED = 60;
float OUTER_BORDER = 5;
float EPSILON = TWO_PI/100; // tolerance for applying angleAdjustment
public class DonutSlice {
String id = "";
String name = "";
boolean hovering = false;
DonutSegment seg;
float angleStart;
float angleStop;
public DonutSlice(String id, String name, DonutSegment seg) {
this.id = id;
this.name = name;
this.seg = seg;
}
public void update() {
// patched by DonutSegment#update() for now
}
public void draw() {
float radius = seg.donut.radius;
stroke(255, 255, 255, 100);
strokeWeight(1);
// TODO: if (this===seg.slices[seg.slices.size()-1])
line(this.seg.donut.x+cos(this.angleStop)*(radius-seg.breadth/2), this.seg.donut.y+sin(this.angleStop)*(radius-seg.breadth/2), this.seg.donut.x+cos(this.angleStop)*(radius+seg.breadth/2), this.seg.donut.y+sin(this.angleStop)*(radius+seg.breadth/2));
// highlight selectedSlice
if (this.hovering) {
curContext.lineCap = "butt"; // processing.js patch!
noFill();
stroke(0,0,0,20);
strokeWeight(seg.breadth);
arc(seg.donut.x, seg.donut.y, seg.donut.radius*2, seg.donut.radius*2, angleStart, angleStop);
}
noStroke();
strokeWeight(0); // reset
if (seg.donut.selectedSegment===this.seg && !seg.fan.isPlaying()) {
float theta = ((this.angleStart+this.angleStop) / 2)%TWO_PI+0.05;
float angle = theta;
curContext.font = "12px Century Gothic";
curContext.textAlign = "left";
if (theta > PI/2 && theta < (PI+PI/2)-0.05) {
fWidth = curContext.measureText(this.name).width;
angle -= 0.05;
} else
fWidth = 0;
pushMatrix();
translate(seg.donut.x, seg.donut.y);
rotate(angle);
pushMatrix();
translate(seg.donut.radius+50+fWidth,0);
if (this.hovering)
fill(HIGHLIGHTED_LABEL_COLOR);
else
fill(LABEL_COLOR);
pushMatrix();
if (theta > PI/2 && theta < (PI+PI/2)-0.05) {
rotate(PI);
}
curContext.fillText(this.name, 0, 0);
popMatrix();
popMatrix();
popMatrix();
}
}
public boolean checkSelected() {
float disX = mouseX - seg.donut.x;
float disY = mouseY - seg.donut.y;
// calculate polar coordinates
float r = Math.sqrt(sq(disX)+sq(disY));
float angle = atan2(disY, disX);
if (angle<0) angle = TWO_PI+angle; // shift to 0-TWO_PI interval
float start = this.angleStart % TWO_PI;
float stop = this.angleStop % TWO_PI;
// TODO: add such a workaround for donuts that have just one slice
// if (seg.donut.numSlices()==1) {
// if (r >= this.donut.radius && r <= this.donut.radius) {
//
// }
// }
if (r >= seg.donut.radius-seg.breadth/2 && r <= seg.donut.radius+seg.breadth/2 &&
((angle>start && angle<stop) || (start>stop && (angle > start || angle < stop)) )) {
seg.donut.setSelectedSlice(this);
// return true
hovering = true;
} else {
hovering = false;
}
}
}
public class DonutSegment {
String label;
float weight;
float angleStart;
float angleStop;
float breadth = STROKE_WEIGHT_COLLAPSED;
Donut donut;
ArrayList slices;
color col;
Tween fan;
Tween breadthTween;
public DonutSegment(String label, Donut donut) {
this.label = label;
this.donut = donut;
this.slices = new ArrayList();
this.weight = 1.0;
this.fan = new Tween(this, "weight", Tween.strongEaseInOut, 1.0, 3.0, 0.8);
this.breadthTween = new Tween(this, "breadth", Tween.strongEaseInOut, STROKE_WEIGHT_COLLAPSED, STROKE_WEIGHT_EXPANDED, 0.8);
}
// the resulting share of the segment (in percent)
public float share() {
return (slices.size()/donut.totalSlices()); // the share of total slices
}
// the weighted share of the segment in respect of the segment's weight (in percent)
public float weightedShare() {
return share()*weight/donut.totalWeight();
}
// the resulting size of the segment (in radiants)
public float amount() {
return (TWO_PI)*weightedShare();
}
public void update() {
// update local angleStart, angleStop using the shared angleOffset
this.angleStart = donut.angleOffset;
float amount = this.amount();
float tmp = this.angleStart;
for (int i=0; i<slices.size(); i++) {
// TODO: delegate the work to DonutSlice#update() -> slices[i].update();
slices[i].angleStart = tmp;
slices[i].angleStop = tmp+=amount/slices.size();
}
this.angleStop = donut.angleOffset+=amount;
}
public void draw() {
// processing.js patch!
curContext.lineCap = "butt";
fill(DONUT_BACKGROUND);
noStroke();
strokeWeight(this.breadth+2*OUTER_BORDER);
stroke(DONUT_BACKGROUND);
noFill();
arc(donut.x, donut.y, (donut.radius)*2, (donut.radius)*2, this.angleStart, this.angleStop);
fill(0,0,0,0);
stroke(col);
strokeWeight(this.breadth);
arc(donut.x, donut.y, donut.radius*2, donut.radius*2, this.angleStart, this.angleStop);
curContext.textAlign = "center";
if (this===donut.selectedSegment) {
fill(col);
curContext.font = "40px Century Gothic";
curContext.fillText(this.slices.size(), donut.x, donut.y-40);
curContext.font = "14px Century Gothic";
curContext.fillText("Options", donut.x, donut.y-20);
curContext.font = "18px Century Gothic";
curContext.fillText(this.label, donut.x, donut.y+30);
noStroke();
ellipse(donut.x, donut.y, 14, 14);
}
// draw slices
for (int i=0; i<slices.size(); i++) {
slices[i].draw();
}
}
// start expanding tween
public void expand() {
this.fan.continueTo(3.0, 0.8);
this.breadthTween.continueTo(STROKE_WEIGHT_EXPANDED, 0.8);
}
// start contracting tween
public void contract() {
this.fan.continueTo(1.0, 0.8);
this.breadthTween.continueTo(STROKE_WEIGHT_COLLAPSED, 0.8);
}
public void addSlice(DonutSlice s) {
slices.add(s);
}
}
public class Donut {
float x;
float y;
float radius;
float angleOffset = 0.0;
ArrayList segments;
int colorCount = 0;
DonutSegment selectedSegment = null;
DonutSlice selectedSlice = null;
float angleAdjustment = 0.0;
boolean opened = true;
public Donut(float x, float y) {
this.x = x;
this.y = y;
this.radius = 120;
this.segments = new ArrayList();
}
public setSelectedSlice(DonutSlice s) {
this.selectedSlice = s;
if (s.seg != this.selectedSegment) {
if (this.selectedSegment!=null)
if (this.selectedSegment!=null) {
this.selectedSegment.contract();
}
this.selectedSegment = s.seg;
this.selectedSegment.expand();
}
}
public void update() {
this.angleAdjustment = 0.0;
this.angleOffset = 0.0;
if (selectedSlice != null) {
float targetAngle = (selectedSlice.angleStart+selectedSlice.angleStop) / 2;
}
// perform tweens first
for (int i=0; i < segments.size(); i++) {
segments[i].fan.tick();
segments[i].breadthTween.tick();
}
// then update the values
for (int i=0; i < segments.size(); i++) {
segments[i].update();
}
if (selectedSlice != null) {
float offset = targetAngle-((selectedSlice.angleStart+selectedSlice.angleStop) / 2);
if (Math.abs(offset)>EPSILON) {
float targetAdjustment = this.angleAdjustment+offset;
if (targetAdjustment<0) {
targetAdjustment = TWO_PI - targetAdjustment;
}
this.angleAdjustment = targetAdjustment;
}
}
// recalc again if angleAdjustment is needed.
if (angleAdjustment>0) {
this.angleOffset = this.angleAdjustment;
for (int i=0; i < segments.size(); i++) {
segments[i].update();
}
}
}
/* this method is probably called to often.
/* maybe that's what slows down the expand/contract tweening */
public float totalWeight() {
float sum = 0.0;
for (int i=0; i < segments.size(); i++) {
sum += segments[i].weight*segments[i].share();
}
return sum;
}
public float totalSlices() {
int sum = 0;
for (int i=0; i < segments.size(); i++) {
sum += segments[i].slices.size();
}
return sum;
}
public void draw() {
noStroke();
// spacer
fill(DONUT_BACKGROUND);
ellipse(this.x, this.y, (radius+STROKE_WEIGHT_COLLAPSED/2+OUTER_BORDER)*2, (radius+STROKE_WEIGHT_COLLAPSED/2+OUTER_BORDER)*2);
// draw attributes
for (int i = 0 ; i < segments.size(); i++) {
segments[i].draw();
}
}
public void addSegment(DonutSegment s) {
if (colorCount==0)
setSelectedSlice(s.slices[0]);
s.col = colors[colorCount%11]; // assign a color
segments.add(s);
colorCount += 2;
}
}
Donut donut;
void setup() {
size(550, 550);
DonutSegment seg;
donut = new Donut(275, 275);
// populate with some data
seg = new DonutSegment("Disco", donut);
seg.addSlice(new DonutSlice("1", "Cosmic disco", seg));
seg.addSlice(new DonutSlice("2", "Eurobeat", seg));
seg.addSlice(new DonutSlice("3", "Eurodance", seg));
seg.addSlice(new DonutSlice("4", "Italo dance", seg));
seg.addSlice(new DonutSlice("5", "Nu-disco", seg));
donut.addSegment(seg);
seg = new DonutSegment("Electro", donut);
seg.addSlice(new DonutSlice("6", "Electro backbeat", seg));
seg.addSlice(new DonutSlice("7", "Electro-hop", seg));
seg.addSlice(new DonutSlice("8", "Electro-grime", seg));
seg.addSlice(new DonutSlice("9", "Techno bass", seg));
donut.addSegment(seg);
seg = new DonutSegment("House", donut);
seg.addSlice(new DonutSlice("10", "Acid House", seg));
seg.addSlice(new DonutSlice("11", "Deep House", seg));
seg.addSlice(new DonutSlice("12", "Electro House", seg));
seg.addSlice(new DonutSlice("13", "Progressive House", seg));
seg.addSlice(new DonutSlice("14", "Scouse House", seg));
seg.addSlice(new DonutSlice("15", "Tribal House", seg));
seg.addSlice(new DonutSlice("16", "Tech House", seg));
donut.addSegment(seg);
seg = new DonutSegment("Techno", donut);
seg.addSlice(new DonutSlice("17", "Acid Techno", seg));
seg.addSlice(new DonutSlice("18", "Detroit Techno", seg));
seg.addSlice(new DonutSlice("19", "Free Tekno", seg));
seg.addSlice(new DonutSlice("20", "Minimal", seg));
seg.addSlice(new DonutSlice("21", "Schranz", seg));
seg.addSlice(new DonutSlice("22", "Tech Trance", seg));
seg.addSlice(new DonutSlice("23", "Techstep", seg));
donut.addSegment(seg);
seg = new DonutSegment("Drum&Bass", donut);
seg.addSlice(new DonutSlice("24", "Clownstep", seg));
seg.addSlice(new DonutSlice("25", "Darkcore", seg));
seg.addSlice(new DonutSlice("26", "Darkstep", seg));
seg.addSlice(new DonutSlice("27", "Drumfunk", seg));
seg.addSlice(new DonutSlice("28", "Hardstep", seg));
seg.addSlice(new DonutSlice("29", "Jump-Up", seg));
seg.addSlice(new DonutSlice("30", "Liquid funk", seg));
seg.addSlice(new DonutSlice("31", "Neurofunk", seg));
seg.addSlice(new DonutSlice("32", "Oldschool jungle", seg));
seg.addSlice(new DonutSlice("33", "Techstep", seg));
seg.addSlice(new DonutSlice("34", "Trancestep", seg));
donut.addSegment(seg);
}
void draw() {
background(BACKGROUND);
frameRate(30);
donut.update();
donut.draw();
stroke(0);
fill(0);
pushMatrix();
popMatrix();
}
void mouseMoved() {
for (int i=0; i < donut.segments.size(); i++) {
for (int j=0; j < donut.segments[i].slices.size(); j++) {
donut.segments[i].slices[j].checkSelected();
}
}
}