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split setImageSmoothingEnabled into private and public parts, change floor to round

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This commit is contained in:
Yochay Doutsh 2019-02-07 11:40:34 +02:00
parent 1e538e665d
commit ef068e9229
1 changed files with 17 additions and 10 deletions
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27
src/drawer.js
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@ -247,7 +247,6 @@ $.Drawer.prototype = {
var viewportSize = this._calculateCanvasSize();
if( this.canvas.width != viewportSize.x ||
this.canvas.height != viewportSize.y ) {
var imageSmoothingEnabled = this.canvas.getContext('2d').imageSmoothingEnabled;
this.canvas.width = viewportSize.x;
this.canvas.height = viewportSize.y;
if ( this.sketchCanvas !== null ) {
@ -255,7 +254,7 @@ $.Drawer.prototype = {
this.sketchCanvas.width = sketchCanvasSize.x;
this.sketchCanvas.height = sketchCanvasSize.y;
}
this.setImageSmoothingEnabled(imageSmoothingEnabled);
this._setImageSmoothingEnabled();
}
this._clear();
}
@ -611,6 +610,9 @@ $.Drawer.prototype = {
},
// private
_imageSmoothingEnabled: true,
/**
* Turns image smoothing on or off for this viewer. Note: Ignored in some (especially older) browsers that do not support this property.
*
@ -621,16 +623,21 @@ $.Drawer.prototype = {
*/
setImageSmoothingEnabled: function(imageSmoothingEnabled){
if ( this.useCanvas ) {
var context = this.context;
context.mozImageSmoothingEnabled = imageSmoothingEnabled;
context.webkitImageSmoothingEnabled = imageSmoothingEnabled;
context.msImageSmoothingEnabled = imageSmoothingEnabled;
context.imageSmoothingEnabled = imageSmoothingEnabled;
this._imageSmoothingEnabled = imageSmoothingEnabled;
this._setImageSmoothingEnabled();
this.viewer.forceRedraw();
}
},
// private
_setImageSmoothingEnabled: function(){
var context = this.context;
context.mozImageSmoothingEnabled = this._imageSmoothingEnabled;
context.webkitImageSmoothingEnabled = this._imageSmoothingEnabled;
context.msImageSmoothingEnabled = this._imageSmoothingEnabled;
context.imageSmoothingEnabled = this._imageSmoothingEnabled;
},
/**
* Get the canvas size
* @param {Boolean} sketch If set to true return the size of the sketch canvas
@ -689,8 +696,8 @@ $.Drawer.prototype = {
var viewportSize = this.viewport.getContainerSize();
return {
// canvas width and height are integers
x: Math.floor(viewportSize.x * pixelDensityRatio),
y: Math.floor(viewportSize.y * pixelDensityRatio)
x: Math.round(viewportSize.x * pixelDensityRatio),
y: Math.round(viewportSize.y * pixelDensityRatio)
};
},