Padding calculation

Compositor/CanvasBuffer.ts

@@ -154,6 +154,11 @@ function _draw_content_to_canvas(
     dheight?:number
 )
 {
+    if(
+        canvas.width != 0 && canvas.height != 0 &&
+        context.canvas.width != 0 && context.canvas.height != 0
+    )
+    {
         context.drawImage(
             canvas,
             x || 0,
@@ -165,4 +170,5 @@ function _draw_content_to_canvas(
             dwidth || canvas.width,
             dheight || canvas.height
         )
+    };
 }

Compositor/ImageNode.ts

@@ -0,0 +1,48 @@
+import Node from "./Node"
+
+export default class ImageNode extends Node
+{
+    public image? : CanvasImageSource;
+    public backgroundColor : string = "rgba(0,0,0,0)";
+    public constructor(){
+        super();
+        this.handleDrawBefore(()=>{
+            if(this.width == 0)
+            {
+                this.width = (this.image?.width || 0) as number;
+                this.height = (this.image?.height || 0) as number;
+            }
+        });
+        this.handleDraw(function(ctx,area){
+            if(this.image && this.image.width)
+            {
+                ctx.context.fillStyle = this.backgroundColor;
+                ctx.context.fillRect(0,0,area.width,area.height)
+                ctx.context.drawImage(
+                    this.image,
+                    0,
+                    0,
+                    this.image.width as number,
+                    this.image.height as number,
+                    0,
+                    0,
+                    area.width,
+                    area.height
+                )
+            };
+            return true;
+        })
+    }
+    public loadFromURL(url:string)
+    {
+        this.image = new Image();
+        this.image.onload = () => {
+            this.update();
+        };
+        this.image.src = url;
+    }
+    public loadFromImage(image:CanvasImageSource)
+    {
+        this.image = image;
+    }
+};

Compositor/Node.ts

@@ -49,6 +49,7 @@ export default class Node
     }
     public draw(maxWidth?: number, maxHeight?: number) : CanvasBuffer
     {
+        this.context.clear();
         let drawableAreaWidth = this.width;
         let drawableAreaHeight = this.height;
 
@@ -292,6 +293,8 @@ export default class Node
                 y += current.y;
                 if(current.parentNode)
                 {
+                    x += current.parentNode.padding.left;
+                    y += current.parentNode.padding.top;
                     current = current.parentNode;
                 }
                 else

Compositor/TextNode.ts

@@ -0,0 +1,31 @@
+import Node from "./Node";
+
+export default class TextNode extends Node
+{
+    public color : string = "#000000";
+    public text: string;
+    public fontSize : number = 18;
+    constructor(text: string){
+        super();
+        this.text = text;
+
+        this.handleDrawBefore(function(){
+            this.height = this.fontSize;
+            this.context.context.save();
+            this.context.context.font = this.fontSize+"px system-ui";
+            this.width = this.context.context.measureText(this.text).width;
+            this.context.context.restore();
+            console.log(this.width)
+        });
+        this.handleDraw(function(canvasBuffer,area){
+            let ctx = canvasBuffer.context;
+            ctx.font = this.fontSize+"px system-ui";
+            ctx.beginPath();
+            ctx.fillStyle = this.color;
+            ctx.textAlign = 'left';
+            ctx.textBaseline = 'top'; 
+            ctx.fillText(this.text, 0,0);
+            ctx.closePath();
+        });
+    }
+};

index.js

@@ -575,123 +575,140 @@ function hmrAccept(bundle /*: ParcelRequire */ , id /*: string */ ) {
 
 },{}],"1jwFz":[function(require,module,exports) {
 var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");
-var _node = require("./Compositor/Node");
-var _nodeDefault = parcelHelpers.interopDefault(_node);
 var _canvas = require("./Compositor/Canvas");
 var _canvasDefault = parcelHelpers.interopDefault(_canvas);
-let container = new (0, _nodeDefault.default)("Box");
+var _textNode = require("./Compositor/TextNode");
-container.handleDrawBefore(function() {
+var _textNodeDefault = parcelHelpers.interopDefault(_textNode);
-    this.width = 400;
-    this.height = 400;
-    this.padding = {
-        left: 10,
-        right: 10,
-        top: 10,
-        bottom: 10
-    };
-});
-let scroll = 2;
-container.handleDraw(function(canvasBuffer, area) {
-    let ctx = canvasBuffer.context;
-    ctx.beginPath();
-    ctx.lineWidth = 1;
-    ctx.strokeStyle = "red";
-    ctx.rect(2, 2, area.width - 2, area.height - 2);
-    ctx.stroke();
-    ctx.closePath();
-    /*
-    let offscreen = new CanvasBuffer(area.width - 8, area.height - 8);
-    for (const child of this.ChildNodes)
-    {
-        this.DrawChild(offscreen, child, offscreen.width - 8, offscreen.height - 8);
-    };
-    offscreen.writeTo(
-        ctx,
-        0,0, area.width, area.height,
-        4,4, area.width, area.height
-    )*/ return true;
-});
-class Button extends (0, _nodeDefault.default) {
-    constructor(x, y, name){
-        super();
-        this.color = "#00ff00";
-        this.x = x;
-        this.y = y;
-        this.name = name;
-        this.handleDrawBefore(function(area) {
-            this.width = 50;
-            this.height = 50;
-        });
-        this.handleDraw(function(canvasBuffer, area) {
-            let ctx = canvasBuffer.context;
-            ctx.beginPath();
-            ctx.lineWidth = 1;
-            ctx.fillStyle = this.color;
-            ctx.fillRect(0, 0, area.width - 4, area.height - 4);
-            ctx.closePath();
-            return true;
-        });
-        this.on("mouse", (event)=>{
-            switch(event.type){
-                case "mouse:down":
-                    event.stoppedBubbling = true;
-                    this.color = "#007700";
-                    this.update();
-                    break;
-                case "mouse:up":
-                    event.stoppedBubbling = true;
-                    this.color = "#00dd00";
-                    this.update();
-                    break;
-                case "mouse:enter":
-                    event.stoppedBubbling = true;
-                    this.color = "#00dd00";
-                    this.update();
-                    break;
-                case "mouse:leave":
-                    event.stoppedBubbling = true;
-                    this.color = "#00ff00";
-                    this.update();
-                    break;
-            }
-        });
-    }
-}
-class TextNode extends (0, _nodeDefault.default) {
-    constructor(text){
-        super();
-        this.color = "#00ff00";
-        this.fontSize = 24;
-        this.text = text;
-        this.context.context.font = "system-ui " + this.fontSize + "px";
-        this.textSize = this.context.context.measureText(text);
-        this.handleDrawBefore(function() {
-            this.width = this.textSize.width;
-            this.height = 50;
-        });
-        this.handleDraw(function(canvasBuffer, area) {
-            let ctx = canvasBuffer.context;
-            ctx.beginPath();
-            ctx.lineWidth = 1;
-            ctx.fillStyle = this.color;
-            ctx.fillRect(2, 2, area.width - 2, area.height - 2);
-            ctx.closePath();
-        });
-    }
-}
-for(let a = 0; a < 500; a += 50)for(let b = 0; b < 500; b += 50)container.addNode(new Button(a, b, "Box A"));
 let t = new (0, _canvasDefault.default)();
 t.init();
-t.addNode(container);
+let text = new (0, _textNodeDefault.default)("Merhaba arkadaşlar nasılsınız ?");
-t.canvas.addEventListener("wheel", function(event) {
+text.color = "black";
-    event.preventDefault();
+text.x = 0;
-    event.stopPropagation();
+text.fontSize = 24;
-    let delta = event.deltaY < 0 ? -5 : 5;
+text.y = 0;
-    scroll = Math.max(scroll + delta, 0);
+t.addNode(text);
-    container.update();
-});
 
-},{"./Compositor/Node":"a8tDl","./Compositor/Canvas":"lKBnk","@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}],"a8tDl":[function(require,module,exports) {
+},{"./Compositor/Canvas":"lKBnk","@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro","./Compositor/TextNode":"3dGtM"}],"lKBnk":[function(require,module,exports) {
+var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");
+parcelHelpers.defineInteropFlag(exports);
+var _node = require("./Node");
+var _nodeDefault = parcelHelpers.interopDefault(_node);
+var _nodeEvent = require("./NodeEvent");
+var _nodeEventDefault = parcelHelpers.interopDefault(_nodeEvent);
+class Canvas {
+    constructor(){
+        this.rootNode = new (0, _nodeDefault.default)("Root");
+        this.nodes = [];
+        this.pool = new DrawPool();
+        this.canvas = document.createElement("canvas");
+        this.context = this.canvas.getContext("2d");
+        this.installMouseManager();
+        this.installKeyboardManager();
+    }
+    init() {
+        this.canvas.style.imageRendering = "pixelated";
+        window.document.body.appendChild(this.canvas);
+        this.recalculateSize();
+        window.addEventListener("resize", ()=>this.recalculateSize());
+        this.pool.trigger = ()=>this.drawContext();
+    }
+    installMouseManager() {
+        this.canvas.addEventListener("mousedown", (event)=>{
+            let mouseEvent = new (0, _nodeEventDefault.default)();
+            mouseEvent.x = event.offsetX;
+            mouseEvent.y = event.offsetY;
+            mouseEvent.type = "mouse:down";
+            this.rootNode.emit("mouse", mouseEvent);
+        });
+        this.canvas.addEventListener("mousemove", (event)=>{
+            let mouseEvent = new (0, _nodeEventDefault.default)();
+            mouseEvent.x = event.offsetX;
+            mouseEvent.y = event.offsetY;
+            mouseEvent.data = {
+                deltaX: event.movementX,
+                deltaY: event.movementY
+            };
+            mouseEvent.type = "mouse:move";
+            this.rootNode.emit("mouse", mouseEvent);
+        });
+        this.canvas.addEventListener("mouseup", (event)=>{
+            let mouseEvent = new (0, _nodeEventDefault.default)();
+            mouseEvent.x = event.offsetX;
+            mouseEvent.y = event.offsetY;
+            mouseEvent.type = "mouse:up";
+            this.rootNode.emit("mouse", mouseEvent);
+        });
+        this.canvas.addEventListener("click", (event)=>{
+            let mouseEvent = new (0, _nodeEventDefault.default)();
+            mouseEvent.x = event.offsetX;
+            mouseEvent.y = event.offsetY;
+            mouseEvent.type = "mouse:click";
+            this.rootNode.emit("mouse", mouseEvent);
+        });
+        this.canvas.addEventListener("wheel", (event)=>{
+            let mouseEvent = new (0, _nodeEventDefault.default)();
+            mouseEvent.x = event.offsetX;
+            mouseEvent.y = event.offsetY;
+            mouseEvent.data = {
+                xModulus: event.deltaX == 0 ? 0 : event.deltaX < 0 ? -1 : 1,
+                yModulus: event.deltaY == 0 ? 0 : event.deltaY < 0 ? -1 : 1,
+                xScroll: event.deltaX,
+                yScroll: event.deltaY
+            };
+            mouseEvent.type = "mouse:wheel";
+            this.rootNode.emit("mouse", mouseEvent);
+        });
+    }
+    installKeyboardManager() {}
+    recalculateSize() {
+        let { width , height  } = document.body.getClientRects()[0];
+        this.canvas.setAttribute("width", width + "px");
+        this.canvas.setAttribute("height", height + "px");
+        this.canvas.style.width = width + "px";
+        this.canvas.style.height = height + "px";
+        this.width = width;
+        this.height = height;
+        this.pool.notify();
+    }
+    addNode(node, priority = 0) {
+        this.nodes.push([
+            node,
+            priority
+        ]);
+        node.on("draw", ()=>{
+            this.pool.notify();
+        });
+        this.pool.notify();
+    }
+    drawContext() {
+        this.rootNode.width = this.width;
+        this.rootNode.height = this.height;
+        this.rootNode.ChildNodes = this.nodes.sort(([, n], [, k])=>n - k).map((e)=>e[0]);
+        this.context.clearRect(0, 0, this.width, this.height);
+        this.rootNode.context.resize(this.rootNode.width, this.rootNode.height);
+        this.rootNode.draw().writeTo(this.context, 0, 0, this.rootNode.width, this.rootNode.height, 0, 0, this.rootNode.width, this.rootNode.height);
+    }
+}
+exports.default = Canvas;
+class DrawPool {
+    addPool(e) {
+        if (!this.busy) this.notify();
+        else this.trigger = e;
+    }
+    notify() {
+        this.busy = true;
+        this.inf = requestAnimationFrame(()=>{
+            if (this.trigger) this.trigger();
+            this.busy = false;
+        });
+    }
+    constructor(){
+        this.busy = true;
+        this.inf = -1;
+    }
+}
+
+},{"./Node":"a8tDl","./NodeEvent":"9Fl2V","@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}],"a8tDl":[function(require,module,exports) {
 var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");
 parcelHelpers.defineInteropFlag(exports);
 var _canvasBuffer = require("./CanvasBuffer");
@@ -728,6 +745,7 @@ class Node {
         else this.emit("draw", new (0, _nodeEventDefault.default)(), false);
     }
     draw(maxWidth, maxHeight) {
+        this.context.clear();
         let drawableAreaWidth = this.width;
         let drawableAreaHeight = this.height;
         if (maxWidth) drawableAreaWidth = Math.min(drawableAreaWidth, maxWidth);
@@ -840,8 +858,11 @@ class Node {
             while(true){
                 x += current.x;
                 y += current.y;
-                if (current.parentNode) current = current.parentNode;
+                if (current.parentNode) {
-                else break;
+                    x += current.parentNode.padding.left;
+                    y += current.parentNode.padding.top;
+                    current = current.parentNode;
+                } else break;
             }
             return {
                 x,
@@ -983,7 +1004,7 @@ class CanvasBuffer {
 }
 exports.default = CanvasBuffer;
 function _draw_content_to_canvas(context, canvas, x, y, width, height, dx, dy, dwidth, dheight) {
-    context.drawImage(canvas, x || 0, y || 0, width || canvas.width, height || canvas.height, dx || 0, dy || 0, dwidth || canvas.width, dheight || canvas.height);
+    if (canvas.width != 0 && canvas.height != 0 && context.canvas.width != 0 && context.canvas.height != 0) context.drawImage(canvas, x || 0, y || 0, width || canvas.width, height || canvas.height, dx || 0, dy || 0, dwidth || canvas.width, dheight || canvas.height);
 }
 
 },{"@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}],"7Rzro":[function(require,module,exports) {
@@ -1041,126 +1062,39 @@ class NodeEvent {
 }
 exports.default = NodeEvent;
 
-},{"@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}],"lKBnk":[function(require,module,exports) {
+},{"@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}],"3dGtM":[function(require,module,exports) {
 var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");
 parcelHelpers.defineInteropFlag(exports);
 var _node = require("./Node");
 var _nodeDefault = parcelHelpers.interopDefault(_node);
-var _nodeEvent = require("./NodeEvent");
+class TextNode extends (0, _nodeDefault.default) {
-var _nodeEventDefault = parcelHelpers.interopDefault(_nodeEvent);
+    constructor(text){
-class Canvas {
+        super();
-    constructor(){
+        this.color = "#000000";
-        this.rootNode = new (0, _nodeDefault.default)("Root");
+        this.fontSize = 18;
-        this.nodes = [];
+        this.text = text;
-        this.pool = new DrawPool();
+        this.handleDrawBefore(function() {
-        this.canvas = document.createElement("canvas");
+            this.height = this.fontSize;
-        this.context = this.canvas.getContext("2d");
+            this.context.context.save();
-        this.installMouseManager();
+            this.context.context.font = this.fontSize + "px system-ui";
-        this.installKeyboardManager();
+            this.width = this.context.context.measureText(this.text).width;
-    }
+            this.context.context.restore();
-    init() {
+            console.log(this.width);
-        this.canvas.style.imageRendering = "pixelated";
-        window.document.body.appendChild(this.canvas);
-        this.recalculateSize();
-        window.addEventListener("resize", ()=>this.recalculateSize());
-        this.pool.trigger = ()=>this.drawContext();
-    }
-    installMouseManager() {
-        this.canvas.addEventListener("mousedown", (event)=>{
-            let mouseEvent = new (0, _nodeEventDefault.default)();
-            mouseEvent.x = event.offsetX;
-            mouseEvent.y = event.offsetY;
-            mouseEvent.type = "mouse:down";
-            this.rootNode.emit("mouse", mouseEvent);
         });
-        this.canvas.addEventListener("mousemove", (event)=>{
+        this.handleDraw(function(canvasBuffer, area) {
-            let mouseEvent = new (0, _nodeEventDefault.default)();
+            let ctx = canvasBuffer.context;
-            mouseEvent.x = event.offsetX;
+            ctx.font = this.fontSize + "px system-ui";
-            mouseEvent.y = event.offsetY;
+            ctx.beginPath();
-            mouseEvent.data = {
+            ctx.fillStyle = this.color;
-                deltaX: event.movementX,
+            ctx.textAlign = "left";
-                deltaY: event.movementY
+            ctx.textBaseline = "top";
-            };
+            ctx.fillText(this.text, 0, 0);
-            mouseEvent.type = "mouse:move";
+            ctx.closePath();
-            this.rootNode.emit("mouse", mouseEvent);
         });
-        this.canvas.addEventListener("mouseup", (event)=>{
-            let mouseEvent = new (0, _nodeEventDefault.default)();
-            mouseEvent.x = event.offsetX;
-            mouseEvent.y = event.offsetY;
-            mouseEvent.type = "mouse:up";
-            this.rootNode.emit("mouse", mouseEvent);
-        });
-        this.canvas.addEventListener("click", (event)=>{
-            let mouseEvent = new (0, _nodeEventDefault.default)();
-            mouseEvent.x = event.offsetX;
-            mouseEvent.y = event.offsetY;
-            mouseEvent.type = "mouse:click";
-            this.rootNode.emit("mouse", mouseEvent);
-        });
-        this.canvas.addEventListener("wheel", (event)=>{
-            let mouseEvent = new (0, _nodeEventDefault.default)();
-            mouseEvent.x = event.offsetX;
-            mouseEvent.y = event.offsetY;
-            mouseEvent.data = {
-                xModulus: event.deltaX == 0 ? 0 : event.deltaX < 0 ? -1 : 1,
-                yModulus: event.deltaY == 0 ? 0 : event.deltaY < 0 ? -1 : 1,
-                xScroll: event.deltaX,
-                yScroll: event.deltaY
-            };
-            mouseEvent.type = "mouse:wheel";
-            this.rootNode.emit("mouse", mouseEvent);
-        });
-    }
-    installKeyboardManager() {}
-    recalculateSize() {
-        let { width , height  } = document.body.getClientRects()[0];
-        this.canvas.setAttribute("width", width + "px");
-        this.canvas.setAttribute("height", height + "px");
-        this.canvas.style.width = width + "px";
-        this.canvas.style.height = height + "px";
-        this.width = width;
-        this.height = height;
-        this.pool.notify();
-    }
-    addNode(node, priority = 0) {
-        this.nodes.push([
-            node,
-            priority
-        ]);
-        node.on("draw", ()=>{
-            this.pool.notify();
-        });
-        this.pool.notify();
-    }
-    drawContext() {
-        this.rootNode.width = this.width;
-        this.rootNode.height = this.height;
-        this.rootNode.ChildNodes = this.nodes.sort(([, n], [, k])=>n - k).map((e)=>e[0]);
-        this.context.clearRect(0, 0, this.width, this.height);
-        this.rootNode.context.resize(this.rootNode.width, this.rootNode.height);
-        this.rootNode.draw().writeTo(this.context, 0, 0, this.rootNode.width, this.rootNode.height, 0, 0, this.rootNode.width, this.rootNode.height);
-    }
-}
-exports.default = Canvas;
-class DrawPool {
-    addPool(e) {
-        if (!this.busy) this.notify();
-        else this.trigger = e;
-    }
-    notify() {
-        this.busy = true;
-        this.inf = requestAnimationFrame(()=>{
-            if (this.trigger) this.trigger();
-            this.busy = false;
-        });
-    }
-    constructor(){
-        this.busy = true;
-        this.inf = -1;
     }
 }
+exports.default = TextNode;
 
-},{"./Node":"a8tDl","./NodeEvent":"9Fl2V","@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}]},["3beyG","1jwFz"], "1jwFz", "parcelRequire94c2")
+},{"./Node":"a8tDl","@parcel/transformer-js/src/esmodule-helpers.js":"7Rzro"}]},["3beyG","1jwFz"], "1jwFz", "parcelRequire94c2")
 
 //# sourceMappingURL=index.js.map

index.ts

@@ -1,142 +1,17 @@
 import Node from "./Compositor/Node";
 import Canvas from "./Compositor/Canvas"
-import CanvasBuffer from "./Compositor/CanvasBuffer";
+import ImageNode from "./Compositor/ImageNode";
-
+import TextNode from "./Compositor/TextNode";
-let container = new Node("Box");
-container.handleDrawBefore(function(){
-    this.width = 400;
-    this.height = 400;
-    this.padding = {
-        left: 10,
-        right: 10,
-        top: 10,
-        bottom: 10
-    };
-});
-
-let scroll = 2;
-container.handleDraw(function(canvasBuffer,area){
-    let ctx = canvasBuffer.context;
-    ctx.beginPath();
-    ctx.lineWidth = 1;
-    ctx.strokeStyle = "red";
-    ctx.rect(2,2,area.width - 2,area.height - 2);
-    ctx.stroke();
-    ctx.closePath();
-    /*
-    let offscreen = new CanvasBuffer(area.width - 8, area.height - 8);
-    for (const child of this.ChildNodes)
-    {
-        this.DrawChild(offscreen, child, offscreen.width - 8, offscreen.height - 8);
-    };
-    offscreen.writeTo(
-        ctx,
-        0,0, area.width, area.height,
-        4,4, area.width, area.height
-    )*/
-    return true;
-});
-
-class Button extends Node
-{
-    public color : string = "#00ff00";
-    constructor(x: number, y:number, name: string){
-        super();
-        this.x = x;
-        this.y = y;
-        this.name = name;
-        this.handleDrawBefore(function(area){
-            this.width = 50;
-            this.height = 50;
-        });
-        this.handleDraw(function(canvasBuffer,area){
-            let ctx = canvasBuffer.context;
-            ctx.beginPath();
-            ctx.lineWidth = 1;
-            ctx.fillStyle = this.color;
-            ctx.fillRect(0,0,area.width - 4,area.height - 4);
-            ctx.closePath();
-            return true;
-        });
-        this.on("mouse",(event) => {
-            switch(event.type)
-            {
-                case "mouse:down":{
-                    event.stoppedBubbling = true;
-                    this.color = "#007700";
-                    this.update();
-                    break;
-                }
-                case "mouse:up":{
-                    event.stoppedBubbling = true;
-                    this.color = "#00dd00";
-                    this.update();
-                    break;
-                }
-                case "mouse:enter":{
-                    event.stoppedBubbling = true;
-                    this.color = "#00dd00";
-                    this.update();
-                    break;
-                }
-                case "mouse:leave":{
-                    event.stoppedBubbling = true;
-                    this.color = "#00ff00";
-                    this.update();
-                    break;
-                }
-            }
-        });
-    }
-};
-class TextNode extends Node
-{
-    public color : string = "#00ff00";
-    public textSize: TextMetrics;
-    public text: string;
-    public fontSize : number = 24;
-    constructor(text: string){
-        super();
-        this.text = text;
-        this.context.context.font = "system-ui "+this.fontSize+"px";
-        this.textSize = this.context.context.measureText(text);
-
-        this.handleDrawBefore(function(){
-            this.width = this.textSize.width;
-            this.height = 50;
-        });
-        this.handleDraw(function(canvasBuffer,area){
-            let ctx = canvasBuffer.context;
-            ctx.beginPath();
-            ctx.lineWidth = 1;
-            ctx.fillStyle = this.color;
-            ctx.fillRect(2,2,area.width - 2,area.height - 2);
-            ctx.closePath();
-        });
-    }
-};
-
-for(let a = 0; a < 500; a += 50)
-{
-    for(let b = 0; b < 500; b += 50)
-    {
-        container.addNode(new Button(a,b,"Box A"));
-    }
-}
 
 
 let t = new Canvas();
 t.init();
-t.addNode(container);
 
-t.canvas.addEventListener("wheel",function(event){
+let text = new TextNode("Merhaba arkadaşlar nasılsınız ?");
-    event.preventDefault();
+text.color = "black";
-    event.stopPropagation();
+text.x = 0;
+text.fontSize = 24;
+text.y = 0;
 
-    let delta = event.deltaY < 0 ? -5 : +5;
 
-    scroll = Math.max(scroll + delta, 0);
+t.addNode(text);
-
-    container.update();
-    
-});