Created
September 7, 2012 13:40
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Capture picture using Titanium
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function capturePictureDialog(opts) { | |
var dialogCallback = (typeof opts.callback == "undefined") ? new Function("") : opts.callback; | |
function cropImageBlob(image, cropRect) { | |
var h = image.height; | |
var w = image.width; | |
var toH = cropRect.height; | |
if (toH > h) { | |
toH = h; | |
} | |
var toW = cropRect.width; | |
if (toW > w) { | |
toW = w; | |
} | |
var cropX = cropRect.x; | |
if (cropX < 0) { | |
cropX = 0; | |
} | |
var cropY = cropRect.y; | |
if (cropY < 0) { | |
cropY = 0; | |
} | |
var baseImage = Titanium.UI.createImageView({ | |
image: image, | |
width: w, | |
height: h | |
}); | |
var cropView = Titanium.UI.createView({ | |
width: toW, | |
height: toH | |
}); | |
cropView.add(baseImage); | |
baseImage.left = -cropX; | |
baseImage.top = -cropY; | |
return cropView.toImage(); | |
} | |
function rotateImageBlob90degreesClockwise(image) { | |
var img = Ti.UI.createImageView({ | |
image: image, | |
transform: Ti.UI.create2DMatrix().rotate(-90) | |
}); | |
return img.toImage(); | |
} | |
Titanium.Media.showCamera({ | |
saveToPhotoGallery : false, | |
showControls : false, // don't show system controls | |
mediaTypes : Ti.Media.MEDIA_TYPE_PHOTO, | |
success: function (event) { | |
if (event.mediaType != Ti.Media.MEDIA_TYPE_PHOTO) { | |
alert("Not an image!"); | |
return false; | |
} | |
var image = event.media; | |
var cropRect = event.cropRect; | |
if (cropRect) { | |
var workingImage = cropImageBlob(image, cropRect); | |
} else { | |
var workingImage = cropImageBlob(image, { | |
x: 0, | |
y: 0, | |
height: image.height, | |
width: image.width | |
}); | |
} | |
var win = Ti.UI.createWindow({ | |
backgroundColor: 'white' | |
}); | |
var hrView = Ti.UI.createView({ | |
top:'10', | |
left:'100', | |
layout:'horizontal' | |
}); | |
var workingImageView = Titanium.UI.createImageView({ | |
image: workingImage, | |
width: workingImage.width, | |
height: workingImage.height | |
}); | |
var recaptureButton = Ti.UI.createButton({ | |
height: 30, | |
title: 'Re-capture' | |
}); | |
recaptureButton.addEventListener('click', function (e) { | |
win.close(); | |
capturePictureDialog(opts); | |
}); | |
var acceptButton = Ti.UI.createButton({ | |
height: 30, | |
title: 'Accept' | |
}); | |
acceptButton.addEventListener('click', function (e) { | |
win.close(); | |
dialogCallback({ | |
status: "ok", | |
image: workingImage | |
}); | |
}); | |
var cancelButton = Ti.UI.createButton({ | |
height: 30, | |
title: 'Cancel' | |
}); | |
cancelButton.addEventListener('click', function (e) { | |
win.close(); | |
dialogCallback({ | |
status: "cancelled" | |
}); | |
}); | |
var rotateButton = Ti.UI.createButton({ | |
height: 30, | |
title: 'Rotate' | |
}); | |
rotateButton.addEventListener('click', function (e) { | |
workingImage = rotateImageBlob90degreesClockwise(workingImage); | |
workingImageView.image = workingImage; | |
}); | |
win.add(workingImageView); | |
hrView.add(rotateButton); | |
hrView.add(recaptureButton); | |
hrView.add(acceptButton); | |
hrView.add(cancelButton); | |
win.add(hrView); | |
win.open(); | |
}, | |
cancel: function () { | |
dialogCallback({ | |
status: "cancelled" | |
}); | |
}, | |
error: function (er) { | |
Titanium.UI.createAlertDialog({ | |
title: 'Error', | |
message: 'An error occured while trying to reference your camera!' | |
}).show(); | |
dialogCallback({ | |
status: "error" | |
}); | |
}, | |
}); | |
} | |
capturePictureDialog({ | |
callback:function(obj){ | |
if(obj.status=="ok"){ | |
var img=Titanium.UI.createImageView({image:obj.image,width:obj.image.width, height:obj.image.height}); | |
var win = Ti.UI.createWindow({backgroundColor: 'white'}); | |
win.add(img); | |
} | |
} | |
}); |
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