class TextArea{
float x,y,w,h,bx,by,textSize = 12,spacing = 2,txoff,tyoff,lxpos;
int last,lines,xpos,ypos;
String [] textArea;
String text = "",blankLine="",tempLine = "",label = "";
boolean update,blink,visible = true,vScroll,hScroll;
boolean mdown,toggle,border,bgFill,localTheme,setMouse;
char currentKey;
int col;
PVector mouse;
PGraphics canvas,parentCanvas;
TextArea(float x_,float y_,float w_,float h_){
x = x_;
bx = x;
y = y_;
by = y;
w = w_;
h = h_;
//textSize(textSize);
canvas = createGraphics((int) w,(int) h);
println(w,h,x,y,canvas.width);
//while(textWidth(blankLine)<w-textWidth("")
};
TextArea(float x_,float y_,float w_,float h_,String Label){
label = Label;
x = x_;
bx = x;
y = y_;
by = y;
w = w_;
h = h_;
canvas = createGraphics((int) w,(int) h);
println(w,h,x,y,canvas.width);
//textSize(textSize);
//while(textWidth(blankLine)<w-textWidth("")
};
void draw(){
logic();
getCursor();
//getKey();
fill(255);
strokeWeight(0);
rect(x,y,w,h);
stroke(0);
strokeWeight(2);
lxpos = 0;
if(textArea!=null&&ypos<textArea.length&&xpos<=textArea[ypos].length())lxpos = textWidth(textArea[ypos].substring(0,xpos));
if(frameCount%30==0&&blink)blink = false;
else if(frameCount%60==0&&!blink)blink = true;
if(blink)line(x+lxpos,y+ypos*(textSize+spacing),x+lxpos,y+ypos*(textSize+spacing)+textSize);
if(label!=null){
fill(col);
text(label,x,y+ypos*(textSize+spacing));
}
if(textArea!=null){
for(int i=0;i<textArea.length;i++){
fill(0,0,255,50);
noStroke();
rect(x,y+(textSize+spacing)*i,w,textSize);
}
for(int i=0;i<textArea.length;i++){
String s = textArea[i];
fill(col);
text(s,x,y+(textSize+spacing)*i+textSize);
}
}
};
void draw(boolean k){
if(parentCanvas==null)draw(canvas);
else draw(parentCanvas);
};
void draw(PGraphics canvas){
if(parentCanvas ==null){
logic(true);
getCursor(true);
//getKey();
if(canvas!=null){
canvas.beginDraw();
canvas.fill(255);
canvas.strokeWeight(0);
canvas.rect(0,0,w,h);
canvas.stroke(0);
canvas.strokeWeight(2);
if(label!=null){
canvas.fill(col);
canvas.text(label,0,0+(textSize));
//println(label);
}
textSize(textSize);
lxpos = 0;
if(textArea!=null&&ypos<textArea.length&&xpos<=textArea[ypos].length())lxpos = textWidth(textArea[ypos].substring(0,xpos));
if(frameCount%30==0&&blink)blink = false;
else if(frameCount%60==0&&!blink)blink = true;
if(blink)canvas.line(0+lxpos,0+ypos*(textSize+spacing),0+lxpos,0+ypos*(textSize+spacing)+textSize);
if(textArea!=null){
canvas.fill(0,0,255,50);
canvas.noStroke();
for(int i=0;i<textArea.length;i++){
canvas.rect(0,0+(textSize+spacing)*i,w,textSize);
}
canvas.fill(col);
canvas.textSize(textSize);
for(int i=0;i<textArea.length;i++){
String s = textArea[i];
canvas.text(s,0+txoff,0+(textSize+spacing)*i+textSize+tyoff);
}
}
canvas.endDraw();
image(canvas,x,y);
//println(canvas.width);
}
}else{
draw(parentCanvas,true);
}
};
void draw(PGraphics scene,boolean b1){
if(scene !=null){
logic(true);
if(toggle)getCursor(true);
if(canvas!=null&&visible){
canvas.beginDraw();
canvas.fill(255);
canvas.strokeWeight(0);
canvas.rect(0,0,w,h);
canvas.stroke(0);
canvas.strokeWeight(2);
if(label!=null){
canvas.textSize(textSize);
canvas.fill(0);
canvas.text(label,0,0+(textSize));
}
textSize(textSize);
//lxpos = 0;
if(textArea!=null&&xpos>-1&&ypos>-1&&ypos<textArea.length
&&xpos<=textArea[ypos].length())
lxpos = textWidth(textArea[ypos].substring(0,xpos));
if(frameCount%30==0&&blink)blink = false;
else if(frameCount%30==0&&!blink)blink = true;
if(blink)canvas.line(lxpos,0+ypos*(textSize+spacing),0+lxpos,0+ypos*(textSize+spacing)+textSize);
if(textArea!=null){
canvas.fill(0,0,255,50);
canvas.noStroke();
for(int i=0;i<textArea.length;i++){
canvas.rect(0,0+(textSize+spacing)*i,w,textSize);
}
canvas.fill(col);
canvas.textSize(textSize);
for(int i=0;i<textArea.length;i++){
String s = textArea[i];
canvas.text(s,0+txoff,0+(textSize+spacing)*i+textSize+tyoff);
}
}
canvas.endDraw();
scene.beginDraw();
scene.image(
canvas,x,y);
scene.endDraw();
image(scene,0,0);
}
}
};
void update(){
if(update){
if(ypos==last){
}else{
int l = text.length()-1;
textArea[last] = textArea[last]+text.charAt(l);
}
update = false;
}
};
void logic(){
if(textArea ==null){
textArea = new String[1];
textArea[0] = "";
}
if(textArea!=null&&textArea.length>0){
lines = textArea.length-1;
last = textArea[lines].length()-1;
}
if(pos()&&mousePressed)toggle = true;
if(pos()&&!mousePressed)toggle = false;
if(vScroll){
}
if(hScroll){
}
//if(!pos&&mousePressed)toggle=false;
//if(
};
void logic(boolean b1){
if(textArea ==null){
textArea = new String[1];
textArea[0] = "";
}
if(textArea!=null&&textArea.length>0){
lines = textArea.length-1;
last = textArea[lines].length()-1;
}
if(label!=null&&toggle)label = null;
//if(pos(mouse))println(mouse.x,mouse.y);
if(pos(mouse)&&mousePressed)toggle = true;
if(!pos(mouse)&&mousePressed)toggle = false;
if(vScroll){
}
if(hScroll){
}
//if(!pos&&mousePressed)toggle=false;
//if(
};
void logic(PVector mouse){
if(mouse!=null){
if(textArea ==null){
textArea = new String[1];
textArea[0] = "";
}
if(textArea!=null&&textArea.length>0){
lines = textArea.length-1;
last = textArea[lines].length()-1;
}
if(pos(mouse)&&mousePressed)toggle = true;
if(pos(mouse)&&!mousePressed)toggle = false;
if(vScroll){
}
if(hScroll){
}
}
//if(!pos&&mousePressed)toggle=false;
//if(
};
void getKey(){
boolean b1 = ypos*(textSize+spacing)<h-(textSize+spacing)*2;
boolean b2 = lxpos<w;
if(key!=CODED&&key!=BACKSPACE&&key!=ENTER){
String s = "";
s+= key;
b2 = lxpos<w - textWidth(s);
}
if(b2&&!b1&&key!=ENTER)b1 = true;
//if(!b1&&)b1 = true;
//println(lxpos,w,b1,b2);
if(toggle&&b1&&b2){
textSize(textSize);
if(key!=CODED&&key!=BACKSPACE&&key!=ENTER){
currentKey = key;
if(textArea==null){
textArea = new String[1];
textArea[0] = text;
xpos = text.length();
}else{
if(ypos<textArea.length){
if(xpos==tempLine.length()){
tempLine += currentKey;
textArea[ypos] = tempLine;
xpos = textArea[ypos].length();
setText(textArea);
}else if(xpos<tempLine.length()){
String s1 = tempLine.substring(0,xpos);
String s2 = "";
if(xpos>2)textArea[ypos].substring(xpos-2,textArea[ypos].length()-1);
else textArea[ypos].substring(0,textArea[ypos].length()-1);
tempLine = s1+currentKey;
for(int i=xpos;i<textArea[ypos].length();i++){
char a = textArea[ypos].charAt(i);
tempLine+= a;
}
textArea[ypos] = tempLine;
xpos =s1.length()+1;
setText(textArea);
}
}
}
}
else if(key==BACKSPACE){
if(textArea!=null){
println("backspace",xpos,textArea[ypos].length());
if(textArea.length==1||ypos==0){
if(xpos==textArea[0].length()){
if(xpos>0){
tempLine = textArea[0].substring(0,textArea[0].length()-1);
xpos = tempLine.length();
textArea[0] = tempLine;
}
}else if(xpos>0){
tempLine = textArea[0].substring(0,xpos-1);
xpos = tempLine.length();
for(int i=xpos+1;i<textArea[0].length();i++){
tempLine+= textArea[0].charAt(i);
}
textArea[0] = tempLine;
}
}else{
if(xpos==textArea[ypos].length()||xpos==0){
if(xpos>0){
tempLine = textArea[ypos].substring(0,textArea[ypos].length()-1);
xpos = tempLine.length();
textArea[ypos] = tempLine;
}else{
String s2 = textArea[ypos].substring(xpos,textArea[ypos].length());
String[] temp = new String[textArea.length-1];
//temp[ypos-1] = textArea[ypos-1];
for(int i=0;i<ypos;i++){
temp[i] = textArea[i];
}
temp[ypos-1]+= s2;
for(int i=ypos+1;i<textArea.length;i++){
temp[i-1] = textArea[i];
}
//
tempLine = textArea[ypos];
xpos = textArea[ypos-1].length();
tempLine += s2;
for(int i=0;i<textArea[ypos].length();i++){
char a = textArea[ypos].charAt(i);
tempLine += a;
}
textArea = temp;
ypos --;
}
}else{
if(xpos>0){
tempLine = textArea[ypos].substring(0,xpos-1);
xpos = tempLine.length();
for(int i=xpos+1;i<textArea[ypos].length();i++){
tempLine+= textArea[ypos].charAt(i);
}
textArea[ypos] = tempLine;
}else{
tempLine = textArea[ypos-1].substring(0,textArea[ypos-1].length());
//xpos = tempLine.length();
for(int i=xpos+1;i<textArea[ypos].length();i++){
tempLine+= textArea[ypos].charAt(i);
}
textArea[ypos] = tempLine;
}
}
}
}
}else if(key==ENTER){
if(ypos ==textArea.length-1){
if(xpos==tempLine.length()){
String []temp = new String[textArea.length+1];
for(int i=0;i<temp.length;i++){
if(i<textArea.length)temp[i] = textArea[i];
else {
temp[i] = "";
}
}
tempLine = "";
textArea = temp;
setText(textArea);
ypos = textArea.length-1;
}else{
String []temp = new String[textArea.length+1];
for(int i=0;i<textArea.length;i++){
temp[i] = textArea[i];
}
String s1 = "",s2 = "";
//for(int i=0;i<ypos-1;i++){
// temp[i] = textArea[i];
//}
temp[ypos] = textArea[ypos].substring(0,xpos);
//temp[ypos] = "";
temp[temp.length-1] = textArea[ypos].substring(xpos,textArea[ypos].length());
tempLine = temp[ypos+1];
//xpos = tempLine.length();
textArea = temp;
setText(textArea);
ypos = textArea.length-1;
//xpos = 0;
}
xpos = 0;
}else{
String []temp = new String[textArea.length+1];
if(xpos==textArea[ypos].length()){
for(int i=0;i<ypos+1;i++){
temp[i] = textArea[i];
}
temp[ypos+1] = "";
for(int i=ypos+2;i<temp.length;i++){
temp[i] = textArea[i-1];
}
tempLine = "";
textArea = temp;
setText(textArea);
ypos ++;
xpos = 0;
}
else{
for(int i=0;i<ypos;i++){
temp[i] = textArea[i];
}
for(int i=ypos+1;i<textArea.length+1;i++){
temp[i] = textArea[i-1];
}
if(xpos>textArea[ypos].length())xpos = textArea[ypos].length();
temp[ypos] = textArea[ypos].substring(0,xpos);
//xpos = temp[ypos].length();
temp[ypos+1] = textArea[ypos].substring(xpos,textArea[ypos].length());
for(int i=ypos+2;i<temp.length;i++){
temp[i] = textArea[i-1];
}
tempLine = temp[ypos];
textArea = temp;
setText(textArea);
//xpos = tempLine.length();
xpos = 0;
ypos ++;
}
}
}
if(keyCode==37&&xpos>0){
xpos--;
}else if(keyCode==37&&xpos==0&&ypos>0){
ypos--;
xpos = textArea[ypos].length();
tempLine = textArea[ypos];
}else if(keyCode==39&&xpos<textArea[ypos].length()){
xpos++;
}else if(keyCode==39&&xpos==textArea[ypos].length()&&ypos<textArea.length-1){
xpos = 0;
ypos++;
tempLine = textArea[ypos];
}else if(keyCode==38&&ypos>0){
ypos--;
tempLine = textArea[ypos];
if(tempLine=="")xpos = 0;
if(xpos>tempLine.length())xpos = tempLine.length();
}else if(keyCode==40&&ypos<textArea.length-1){
ypos++;
tempLine = textArea[ypos];
if(tempLine=="")xpos = 0;
if(xpos>tempLine.length())xpos = tempLine.length();
}
}
};
void setText(String[] s){
text = "";
for(int i=0;i<s.length;i++){
String s1 = s[i];
if(s.length>0&&s1.length()>0&&s1.charAt(s1.length()-1)!='\n')s1 += "\n";
//s[i] = s1;
text+=s1;
}
};
boolean pos(){
boolean k = false;
float max = 0;
if(textArea!=null)max = textArea.length*(textSize+spacing);
return mouseX>x&&mouseX<x+w&&mouseY>y&&mouseY<y+h;
};
boolean lpos(){
boolean k = false;
float max = textArea.length*(textSize+spacing);
return mouseX>x&&mouseX<x+w&&mouseY>y&&mouseY<y+max;
};
boolean pos(PVector m){
boolean k = false;
if(m ==null)m = setMouse();
//float max = textArea.length*(textSize+spacing);
if(m!=null)return m.x>x&&m.x<x+w&&m.y>y&&m.y<y+h;
else {
return false;
}
};
boolean lpos(PVector m){
boolean k = false;
float max = textArea.length*(textSize+spacing);
return m.x>x&&m.x<x+w&&m.y>y&&m.y<y+max;
};
int getCursor(){
int k = -1;
int kx = -1;
if(pos()){
if(mousePressed)toggle = true;
if(lpos()&&mousePressed){
//canvas.beginDraw();
textSize(textSize);
float max = textArea.length*(textSize+spacing);
float tw = textWidth(textArea[ypos]);
k = floor(map(mouseY,y,y+max,0,textArea.length));
if(k<textArea.length){
ypos = k;
String s = "";
for(int i=0;i<textArea[k].length();i++){
s += textArea[k].charAt(i);
float tw1 = textWidth(s)-5;
if(mouseX<x+tw1&&mouseX>x)break;
else kx = i;
if(i==textArea[k].length()-1&&mouseX>x+tw1&&mouseX>x)kx = textArea[k].length();
}
//canvas.endDraw();
if(kx>-1)xpos = kx;
}
tempLine = textArea[k];
}}else if(mousePressed)toggle = false;
return k;
};
int getCursor(boolean b1){
int k = -1;
int kx = -1;
if(pos(mouse)){
if(mousePressed)toggle = true;
if(lpos(mouse)&&mousePressed){
float max = textArea.length*(textSize+spacing);
float tw = textWidth(textArea[ypos]);
k = floor(map(mouse.y,y,y+max,0,textArea.length));
if(k<textArea.length){
//int
ypos = k;
textSize(textSize);
String s = "";
for(int i=0;i<textArea[k].length();i++){
s += textArea[k].charAt(i);
float tw1 = textWidth(s)-5;
if(mouse.x<x+tw1&&mouse.x>x)break;
else kx = i;
if(i==textArea[k].length()-1&&mouse.x>x+tw1&&mouse.x>x)kx = textArea[k].length();
}
if(kx>-1)xpos = kx;
}
tempLine = textArea[k];
}}else if(mousePressed)toggle = false;
return k;
};
int getCursor(PVector mouse){
int k = -1;
int kx = -1;
if(pos(mouse)){
if(mousePressed)toggle = true;
if(lpos(mouse)&&mousePressed){
float max = textArea.length*(textSize+spacing);
float tw = textWidth(textArea[ypos]);
k = floor(map(mouse.y,y,y+max,0,textArea.length));
if(k<textArea.length){
ypos = k;
textSize(textSize);
String s = "";
for(int i=0;i<textArea[k].length();i++){
s += textArea[k].charAt(i);
float tw1 = textWidth(s)-5;
if(mouse.x<x+tw1&&mouse.x>x)break;
else kx = i;
if(i==textArea[k].length()-1&&mouse.x>x+tw1&&mouse.x>x)kx = textArea[k].length();
}
if(kx>-1)xpos = kx;
}
tempLine = textArea[k];
}}else if(mousePressed)toggle = false;
return k;
};
PVector setMouse(){
if(mouse==null){
mouse = new PVector(mouseX,mouseY);
}
else {
mouse.x = mouseX;
mouse.y = mouseY;
}
return mouse;
};
public void addLine() {
String []temp = new String[textArea.length];
for(int i=0;i<textArea.length;i++) {
temp[i] = textArea[i];
}
tempLine = "";
textArea = temp;
ypos = textArea.length-1;
textArea[ypos] = "";
xpos = 0;
};
public void addLineAt(int a) {
String []temp = new String[textArea.length];
for(int i=0;i<a;i++) {
temp[i] = textArea[i];
}
temp[a] = "";
tempLine = "";
for(int i=a;i<textArea.length;i++) {
temp[i] = textArea[i-1];
}
textArea = temp;
ypos = textArea.length-1;
textArea[ypos] = "";
xpos = 0;
};
public void addLineAt(int a,int j) {
String []temp = new String[textArea.length];
for(int i=0;i<a;i++) {
temp[i] = textArea[i].substring(0,j);
}
temp[a] = "";
for(int i=xpos;i<textArea[ypos].length();i++) {
temp[a] += textArea[ypos].charAt(i);
}
tempLine = temp[a];
for(int i=a;i<textArea.length;i++) {
temp[i] = textArea[i-1];
}
textArea = temp;
ypos = textArea.length-1;
textArea[ypos] = "";
xpos = 0;
};
//public float
};
TextArea t1,t2;
PGraphics pg;
void settings(){
size(600,600);
};
void setup(){
t1 = new TextArea(50,50,200,400);
t2 = new TextArea(60+200,50,200,400,"Click to add text");
pg = createGraphics(200,200);
t1.parentCanvas = pg;
t1.setMouse = true;
};
void draw(){
background(0,255,0);
t1.setMouse();
t1.draw(true);
t2.draw(true);
fill(0);
text(frameRate,100,100);
};
void keyPressed(){
t1.getKey();
t2.getKey();
};
has been added to the library Iām currently working on, will update github later;
upcoming features paste from clipboard, highlight and copy text;
