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Rotate image #75

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Rotate image #75

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10 changes: 9 additions & 1 deletion lib/CanvasUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,15 @@ function drawImage (ctx, image, x, y, width, height, options) {
dx = Math.round(x);
dy = Math.round(y);

ctx.drawImage(image.getRawImage(), sx, sy, sw, sh, dx, dy, dw, dh);
if (options.rotate) {
ctx.save();
ctx.translate(dx + (dw / 2), dy + (dh / 2));
ctx.rotate(options.rotate * Math.PI / 180);
ctx.drawImage(image.getRawImage(), sx, sy, sw, sh, - (dw / 2), - (dh / 2), dw, dh);
ctx.restore();
} else {
ctx.drawImage(image.getRawImage(), sx, sy, sw, sh, dx, dy, dw, dh);
}
}

/**
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2 changes: 1 addition & 1 deletion lib/DrawingUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -372,7 +372,7 @@ function drawImageRenderLayer (ctx, layer) {
return;
}

CanvasUtils.drawImage(ctx, image, layer.frame.x, layer.frame.y, layer.frame.width, layer.frame.height);
CanvasUtils.drawImage(ctx, image, layer.frame.x, layer.frame.y, layer.frame.width, layer.frame.height, {rotate: layer.rotate});
}

/**
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7 changes: 5 additions & 2 deletions lib/Image.js
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ var RawImage = createComponent('Image', LayerMixin, {

layer.type = 'image';
layer.imageUrl = props.src;
layer.rotate = props.rotate;
},

mountComponent: function (rootID, transaction, context) {
Expand All @@ -33,6 +34,7 @@ var RawImage = createComponent('Image', LayerMixin, {
var prevProps = this._currentElement.props;
var props = nextComponent.props;
this.applyLayerProps(prevProps, props);
this.applyImageProps(prevProps, props);
this._currentElement = nextComponent;
this.node.invalidateLayout();
},
Expand All @@ -46,7 +48,8 @@ var Image = React.createClass({
style: React.PropTypes.object,
useBackingStore: React.PropTypes.bool,
fadeIn: React.PropTypes.bool,
fadeInDuration: React.PropTypes.number
fadeInDuration: React.PropTypes.number,
rotate: React.PropTypes.number
},

getInitialState: function () {
Expand Down Expand Up @@ -92,7 +95,7 @@ var Image = React.createClass({
return (
React.createElement(Group, {ref: 'main', style: style},
React.createElement(Layer, {ref: 'background', style: backgroundStyle}),
React.createElement(RawImage, {ref: 'image', src: this.props.src, style: imageStyle, useBackingStore: useBackingStore})
React.createElement(RawImage, {ref: 'image', src: this.props.src, style: imageStyle, useBackingStore: useBackingStore, rotate: this.props.rotate})
)
);
},
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