Require CanvasRenderingContext2D as parent object to function
Is there a way of making a function require a CanvasRenderingContext2D object as parent object? I would like to use this to create additional CanvasRenderingContext2D functions, so like
CanvasRenderingContext2D.__proto__.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
// Code here...
}
Edit:
If i run let context = document.getElementById( "canvas" ).getContext( "2d" ); context.strokeRoundedRect( 0, 0, 0, 0, 0 );, I am prompted with this error Uncaught TypeError: context.strokeRoundedRect is not a function
Obviously the function doesn't exist, so is there any way of implementing this?
javascript function canvas html5-canvas parent
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
add a comment |
Is there a way of making a function require a CanvasRenderingContext2D object as parent object? I would like to use this to create additional CanvasRenderingContext2D functions, so like
CanvasRenderingContext2D.__proto__.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
// Code here...
}
Edit:
If i run let context = document.getElementById( "canvas" ).getContext( "2d" ); context.strokeRoundedRect( 0, 0, 0, 0, 0 );, I am prompted with this error Uncaught TypeError: context.strokeRoundedRect is not a function
Obviously the function doesn't exist, so is there any way of implementing this?
javascript function canvas html5-canvas parent
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53
add a comment |
Is there a way of making a function require a CanvasRenderingContext2D object as parent object? I would like to use this to create additional CanvasRenderingContext2D functions, so like
CanvasRenderingContext2D.__proto__.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
// Code here...
}
Edit:
If i run let context = document.getElementById( "canvas" ).getContext( "2d" ); context.strokeRoundedRect( 0, 0, 0, 0, 0 );, I am prompted with this error Uncaught TypeError: context.strokeRoundedRect is not a function
Obviously the function doesn't exist, so is there any way of implementing this?
javascript function canvas html5-canvas parent
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
Is there a way of making a function require a CanvasRenderingContext2D object as parent object? I would like to use this to create additional CanvasRenderingContext2D functions, so like
CanvasRenderingContext2D.__proto__.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
// Code here...
}
Edit:
If i run let context = document.getElementById( "canvas" ).getContext( "2d" ); context.strokeRoundedRect( 0, 0, 0, 0, 0 );, I am prompted with this error Uncaught TypeError: context.strokeRoundedRect is not a function
Obviously the function doesn't exist, so is there any way of implementing this?
javascript function canvas html5-canvas parent
javascript function canvas html5-canvas parent
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
edited Nov 14 '18 at 22:53
Lukas Knudsen
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
asked Nov 14 '18 at 22:32
Lukas KnudsenLukas Knudsen
2819
2819
What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53
add a comment |
What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53
What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53
add a comment |
1 Answer
1
active
oldest
votes
I would like to apologize for jumping to asking a question. I didn't research the problem thoroughly before posting this thread.
For anyone interested in a solution to this, read this comment.
I found out that iterating through an HTMLCollection of all canvases, required by using document.getElementsByTagName( "canvas" ), it is possible to assign your desired functions to the CanvasRenderingContext2D of each individual canvas. I am still not sure if there is a better way of doing this, but here is a JSFiddle and below you will find the raw JavaScript.
let xcd = {};
xcd.initialize = ( context ) => {
context.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "strokeRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
context.fillRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "fillRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
}
// Get HTMLCollection of all canvases
let canvases = document.getElementsByTagName( "canvas" );
for( let i = 0; i < canvases.length; i++)
xcd.initialize( canvases[ i ].getContext( "2d" ) );
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I would like to apologize for jumping to asking a question. I didn't research the problem thoroughly before posting this thread.
For anyone interested in a solution to this, read this comment.
I found out that iterating through an HTMLCollection of all canvases, required by using document.getElementsByTagName( "canvas" ), it is possible to assign your desired functions to the CanvasRenderingContext2D of each individual canvas. I am still not sure if there is a better way of doing this, but here is a JSFiddle and below you will find the raw JavaScript.
let xcd = {};
xcd.initialize = ( context ) => {
context.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "strokeRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
context.fillRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "fillRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
}
// Get HTMLCollection of all canvases
let canvases = document.getElementsByTagName( "canvas" );
for( let i = 0; i < canvases.length; i++)
xcd.initialize( canvases[ i ].getContext( "2d" ) );
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
add a comment |
I would like to apologize for jumping to asking a question. I didn't research the problem thoroughly before posting this thread.
For anyone interested in a solution to this, read this comment.
I found out that iterating through an HTMLCollection of all canvases, required by using document.getElementsByTagName( "canvas" ), it is possible to assign your desired functions to the CanvasRenderingContext2D of each individual canvas. I am still not sure if there is a better way of doing this, but here is a JSFiddle and below you will find the raw JavaScript.
let xcd = {};
xcd.initialize = ( context ) => {
context.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "strokeRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
context.fillRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "fillRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
}
// Get HTMLCollection of all canvases
let canvases = document.getElementsByTagName( "canvas" );
for( let i = 0; i < canvases.length; i++)
xcd.initialize( canvases[ i ].getContext( "2d" ) );
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
add a comment |
I would like to apologize for jumping to asking a question. I didn't research the problem thoroughly before posting this thread.
For anyone interested in a solution to this, read this comment.
I found out that iterating through an HTMLCollection of all canvases, required by using document.getElementsByTagName( "canvas" ), it is possible to assign your desired functions to the CanvasRenderingContext2D of each individual canvas. I am still not sure if there is a better way of doing this, but here is a JSFiddle and below you will find the raw JavaScript.
let xcd = {};
xcd.initialize = ( context ) => {
context.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "strokeRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
context.fillRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "fillRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
}
// Get HTMLCollection of all canvases
let canvases = document.getElementsByTagName( "canvas" );
for( let i = 0; i < canvases.length; i++)
xcd.initialize( canvases[ i ].getContext( "2d" ) );
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
I would like to apologize for jumping to asking a question. I didn't research the problem thoroughly before posting this thread.
For anyone interested in a solution to this, read this comment.
I found out that iterating through an HTMLCollection of all canvases, required by using document.getElementsByTagName( "canvas" ), it is possible to assign your desired functions to the CanvasRenderingContext2D of each individual canvas. I am still not sure if there is a better way of doing this, but here is a JSFiddle and below you will find the raw JavaScript.
let xcd = {};
xcd.initialize = ( context ) => {
context.strokeRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "strokeRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
context.fillRoundedRect = ( x, y, width, height, cornerRadius ) => {
console.log( "fillRoundedRect:: ", "X: " + x, "Y: " + y, "Width: " + width, "Height: " + height, "Corner radius: " + cornerRadius );
}
}
// Get HTMLCollection of all canvases
let canvases = document.getElementsByTagName( "canvas" );
for( let i = 0; i < canvases.length; i++)
xcd.initialize( canvases[ i ].getContext( "2d" ) );
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
answered Nov 15 '18 at 0:19
Lukas KnudsenLukas Knudsen
2819
2819
add a comment |
add a comment |
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What's the problem with your current code?
– Jack Bashford
Nov 14 '18 at 22:33
I edited the post ^^^
– Lukas Knudsen
Nov 14 '18 at 22:53