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jspaint
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reasonable brush

main
Isaiah Odhner 2014-02-28 03:13:44 -05:00
parent 761b141798
commit b16f4129d4
1 changed files with 8 additions and 7 deletions
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15
app.js
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@ -8,7 +8,7 @@ app.open = function(){
var fill_color;
var brush_image = new Image();
brush_image.src = "images/toolbar-icons.png";
brush_image.src = "images/scroll-left.png";
var brush_canvas = $("<canvas>")[0];
var brush_ctx = brush_canvas.getContext("2d");
var brush_rendered_color;
@ -45,19 +45,20 @@ app.open = function(){
description: "Draws using a brush with the selected shape and size.",
continuous: "space",
paint: function(ctx, x, y){
var sz = 16;
if(brush_rendered_color !== stroke_color){
brush_canvas.width = 16;
brush_canvas.height = 16;
brush_ctx.clearRect(0,0,16,16);
brush_ctx.drawImage(brush_image,0,0);
brush_canvas.width = sz;
brush_canvas.height = sz;
brush_ctx.clearRect(0,0,sz,sz);
brush_ctx.drawImage(brush_image,sz/2-brush_image.width/2,sz/2-brush_image.height/2);
brush_ctx.globalCompositeOperation = "source-atop";
brush_ctx.fillStyle = stroke_color;
brush_ctx.fillRect(0,0,16,16);
brush_ctx.fillRect(0,0,sz,sz);
brush_ctx.globalCompositeOperation = "source-over";
brush_rendered_color = stroke_color;
}
ctx.drawImage(brush_canvas, x, y);
ctx.drawImage(brush_canvas, x-sz/2, y-sz/2);
}
},{
name: "Airbrush",