ch.icare.smartscan.legacy.camera

Class CameraControllerLegacy

java.lang.Object

ch.icare.smartscan.camera.controllers.CameraController

ch.icare.smartscan.legacy.camera.CameraControllerLegacy

public class CameraControllerLegacy
extends CameraController

This object wraps the Camera service object and expects to be the only one talking to it. The implementation encapsulates the steps needed to take preview-sized images, which are used for both preview and decoding.

Field Summary

Fields inherited from class ch.icare.smartscan.camera.controllers.CameraController

refreshROI, sDecodingSubType, sDecodingType

Constructor Summary

Constructors

Constructor and Description
CameraControllerLegacy(android.content.Context context)

Method Summary

Modifier and Type	Method and Description
void	closeCamera() Closes the camera driver if still in use.
android.graphics.Point	getCameraResolution()
int	getPreviewOrientation() Finds the angle to apply to the preview frames to get an image with natural orientation.
boolean	isFlashAvailable() Checks if flashlight is available on device.
boolean	isZoomAvailable() Get the information about the availability of the zoom .
void	manualFocus(float motionX, float motionY, android.view.View view, boolean isFocusRectangleVisible) On double tap we switch to manual focus.
void	openCamera(android.graphics.SurfaceTexture surfaceTexture, int width, int height) Opens the camera driver and initializes the hardware parameters.
void	requestPreviewFrame(android.os.Handler handler, int message) A single preview frame will be returned to the handler supplied.
void	setAutoFocusEnabled(boolean isAutoFocusEnabled) If not already activated we turn on the auto focus.
void	setCameraId(int cameraId)
void	setFlashEnabled(boolean newSetting) Enables/disables flash light
void	setZoomCamera(int zoom) Get the information about the availability of the zoom .
void	startPreview() Asks the camera hardware to begin drawing preview frames to the screen.
void	stopPreview() Tells the camera to stop drawing preview frames.

Methods inherited from class ch.icare.smartscan.camera.controllers.CameraController

drawDebugPreview, getContext, getDecodingSubType, getDecodingType, getDeviceOrientation, getRectangleFocusWidth, getRefreshROI, getRegionOfInterest, getRegionOfInterestInPreview, getRequestedROI, getSizeAutoFit, getSurfaceListener, getTextureView, getTickTimer, getVisualDebug, isInitialized, isOpen, setCameraIsOpen, setDebugPreview, setDecodingType, setDeviceOrientation, setInitialized, setOnTextureReadyListener, setRectangleFocusWidth, setRefreshROI, setRegionOfInterest, setRequestedROI, setROI, setROIPreview, setTextureView, setVisualDebug, textureViewReady

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CameraControllerLegacy

public CameraControllerLegacy(android.content.Context context)

Method Detail

setCameraId

public void setCameraId(int cameraId)

Specified by:

setCameraId in class CameraController

getCameraResolution

public android.graphics.Point getCameraResolution()

Specified by:

getCameraResolution in class CameraController

openCamera

public void openCamera(android.graphics.SurfaceTexture surfaceTexture,
                       int width,
                       int height)
                throws java.io.IOException

Opens the camera driver and initializes the hardware parameters.

Specified by:

openCamera in class CameraController

Throws:

java.io.IOException - Indicates the camera driver failed to open.

closeCamera

public void closeCamera()

Closes the camera driver if still in use.

Specified by:

closeCamera in class CameraController

startPreview

public void startPreview()

Asks the camera hardware to begin drawing preview frames to the screen.

getPreviewOrientation

public int getPreviewOrientation()

Finds the angle to apply to the preview frames to get an image with natural orientation. Preview frames are delivered raw, as a byte array, according to the camera sensor physical orientation. Based on device orientation, camera (both given at class instantiation) and camera sensor orientation.

Specified by:

getPreviewOrientation in class CameraController

Returns:

int angle to apply to preview frames

stopPreview

public void stopPreview()

Tells the camera to stop drawing preview frames.

setFlashEnabled

public void setFlashEnabled(boolean newSetting)

Enables/disables flash light

isFlashAvailable

public boolean isFlashAvailable()

Checks if flashlight is available on device.

Returns:

true if flashlight is available, false otherwise. If camera is not initialised, returns false.

requestPreviewFrame

public void requestPreviewFrame(android.os.Handler handler,
                                int message)

A single preview frame will be returned to the handler supplied. The data will arrive as byte[] in the message.obj field, with width and height encoded as message.arg1 and message.arg2, respectively.

Specified by:

requestPreviewFrame in class CameraController

Parameters:

handler - The handler to send the message to.

message - The what field of the message to be sent.

isZoomAvailable

public boolean isZoomAvailable()

Get the information about the availability of the zoom .

Specified by:

isZoomAvailable in class CameraController

setZoomCamera

public void setZoomCamera(int zoom)

Get the information about the availability of the zoom .

Specified by:

setZoomCamera in class CameraController

manualFocus

public void manualFocus(float motionX,
                        float motionY,
                        android.view.View view,
                        boolean isFocusRectangleVisible)

On double tap we switch to manual focus. We try focusing on the region were the double tap was done.

Specified by:

manualFocus in class CameraController

setAutoFocusEnabled

public void setAutoFocusEnabled(boolean isAutoFocusEnabled)

If not already activated we turn on the auto focus.

Specified by:

setAutoFocusEnabled in class CameraController