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Merge branch 'master' of git://github.com/albinpoignot/barcodescanner…
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… into albinpoignot-master
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Dushyanth Maguluru committed May 27, 2017
2 parents 295d2b4 + 0edb6f2 commit 48a2997
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Showing 4 changed files with 204 additions and 21 deletions.
101 changes: 99 additions & 2 deletions core/src/main/java/me/dm7/barcodescanner/core/BarcodeScannerView.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,13 +5,15 @@
import android.graphics.Color;
import android.graphics.Rect;
import android.hardware.Camera;
import android.support.annotation.ColorInt;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;

public abstract class BarcodeScannerView extends FrameLayout implements Camera.PreviewCallback {

private CameraWrapper mCameraWrapper;
private CameraPreview mPreview;
private IViewFinder mViewFinderView;
Expand All @@ -21,22 +23,54 @@ public abstract class BarcodeScannerView extends FrameLayout implements Camera.P
private boolean mAutofocusState = true;
private boolean mShouldScaleToFill = true;

private boolean mIsLaserEnabled = true;
@ColorInt private int mLaserColor = getResources().getColor(R.color.viewfinder_laser);
@ColorInt private int mBorderColor = getResources().getColor(R.color.viewfinder_border);
private int mMaskColor = getResources().getColor(R.color.viewfinder_mask);
private int mBorderWidth = getResources().getInteger(R.integer.viewfinder_border_width);
private int mBorderLength = getResources().getInteger(R.integer.viewfinder_border_length);
private boolean mRoundedCorner = false;
private int mCornerRadius = 0;
private boolean mSquaredFinder = false;
private float mBorderAlpha = 1.0f;
private int mViewFinderOffset = 0;

public BarcodeScannerView(Context context) {
super(context);
init();
}

public BarcodeScannerView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);

TypedArray a = context.getTheme().obtainStyledAttributes(
attributeSet,
R.styleable.BarcodeScannerView,
0, 0);

try {
setShouldScaleToFill(a.getBoolean(R.styleable.BarcodeScannerView_shouldScaleToFill, true));
mIsLaserEnabled = a.getBoolean(R.styleable.BarcodeScannerView_laserEnabled, mIsLaserEnabled);
mLaserColor = a.getColor(R.styleable.BarcodeScannerView_laserColor, mLaserColor);
mBorderColor = a.getColor(R.styleable.BarcodeScannerView_borderColor, mBorderColor);
mMaskColor = a.getColor(R.styleable.BarcodeScannerView_maskColor, mMaskColor);
mBorderWidth = a.getDimensionPixelSize(R.styleable.BarcodeScannerView_borderWidth, mBorderWidth);
mBorderLength = a.getDimensionPixelSize(R.styleable.BarcodeScannerView_borderLength, mBorderLength);

mRoundedCorner = a.getBoolean(R.styleable.BarcodeScannerView_roundedCorner, mRoundedCorner);
mCornerRadius = a.getDimensionPixelSize(R.styleable.BarcodeScannerView_cornerRadius, mCornerRadius);
mSquaredFinder = a.getBoolean(R.styleable.BarcodeScannerView_squaredFinder, mSquaredFinder);
mBorderAlpha = a.getFloat(R.styleable.BarcodeScannerView_borderAlpha, mBorderAlpha);
mViewFinderOffset = a.getDimensionPixelSize(R.styleable.BarcodeScannerView_finderOffset, mViewFinderOffset);
} finally {
a.recycle();
}

init();
}

private void init() {
mViewFinderView = createViewFinderView(getContext());
}

public final void setupLayout(CameraWrapper cameraWrapper) {
Expand All @@ -54,7 +88,6 @@ public final void setupLayout(CameraWrapper cameraWrapper) {
addView(mPreview);
}

mViewFinderView = createViewFinderView(getContext());
if (mViewFinderView instanceof View) {
addView((View) mViewFinderView);
} else {
Expand All @@ -71,7 +104,70 @@ public final void setupLayout(CameraWrapper cameraWrapper) {
* @return {@link android.view.View} that implements {@link ViewFinderView}
*/
protected IViewFinder createViewFinderView(Context context) {
return new ViewFinderView(context);
ViewFinderView viewFinderView = new ViewFinderView(context);
viewFinderView.setBorderColor(mBorderColor);
viewFinderView.setLaserColor(mLaserColor);
viewFinderView.setLaserEnabled(mIsLaserEnabled);
viewFinderView.setBorderStrokeWidth(mBorderWidth);
viewFinderView.setBorderLineLength(mBorderLength);
viewFinderView.setMaskColor(mMaskColor);

viewFinderView.setBorderCornerRounded(mRoundedCorner);
viewFinderView.setBorderCornerRadius(mCornerRadius);
viewFinderView.setSquareViewFinder(mSquaredFinder);
viewFinderView.setViewFinderOffset(mViewFinderOffset);
return viewFinderView;
}

public void setLaserColor(int laserColor) {
mLaserColor = laserColor;
mViewFinderView.setLaserColor(mLaserColor);
mViewFinderView.setupViewFinder();
}
public void setMaskColor(int maskColor) {
mMaskColor = maskColor;
mViewFinderView.setMaskColor(mMaskColor);
mViewFinderView.setupViewFinder();
}
public void setBorderColor(int borderColor) {
mBorderColor = borderColor;
mViewFinderView.setBorderColor(mBorderColor);
mViewFinderView.setupViewFinder();
}
public void setBorderStrokeWidth(int borderStrokeWidth) {
mBorderWidth = borderStrokeWidth;
mViewFinderView.setBorderStrokeWidth(mBorderWidth);
mViewFinderView.setupViewFinder();
}
public void setBorderLineLength(int borderLineLength) {
mBorderLength = borderLineLength;
mViewFinderView.setBorderLineLength(mBorderLength);
mViewFinderView.setupViewFinder();
}
public void setLaserEnabled(boolean isLaserEnabled) {
mIsLaserEnabled = isLaserEnabled;
mViewFinderView.setLaserEnabled(mIsLaserEnabled);
mViewFinderView.setupViewFinder();
}
public void setIsBorderCornerRounded(boolean isBorderCornerRounded) {
mRoundedCorner = isBorderCornerRounded;
mViewFinderView.setBorderCornerRounded(mRoundedCorner);
mViewFinderView.setupViewFinder();
}
public void setBorderCornerRadius(int borderCornerRadius) {
mCornerRadius = borderCornerRadius;
mViewFinderView.setBorderCornerRadius(mCornerRadius);
mViewFinderView.setupViewFinder();
}
public void setSquareViewFinder(boolean isSquareViewFinder) {
mSquaredFinder = isSquareViewFinder;
mViewFinderView.setSquareViewFinder(mSquaredFinder);
mViewFinderView.setupViewFinder();
}
public void setBorderAlpha(float borderAlpha) {
mBorderAlpha = borderAlpha;
mViewFinderView.setBorderAlpha(mBorderAlpha);
mViewFinderView.setupViewFinder();
}

public void startCamera(int cameraId) {
Expand Down Expand Up @@ -203,3 +299,4 @@ public void setShouldScaleToFill(boolean shouldScaleToFill) {
mShouldScaleToFill = shouldScaleToFill;
}
}

13 changes: 13 additions & 0 deletions core/src/main/java/me/dm7/barcodescanner/core/IViewFinder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,19 @@
import android.graphics.Rect;

public interface IViewFinder {

void setLaserColor(int laserColor);
void setMaskColor(int maskColor);
void setBorderColor(int borderColor);
void setBorderStrokeWidth(int borderStrokeWidth);
void setBorderLineLength(int borderLineLength);
void setLaserEnabled(boolean isLaserEnabled);

void setBorderCornerRounded(boolean isBorderCornersRounded);
void setBorderAlpha(float alpha);
void setBorderCornerRadius(int borderCornersRadius);
void setViewFinderOffset(int offset);
void setSquareViewFinder(boolean isSquareViewFinder);
/**
* Method that executes when Camera preview is starting.
* It is recommended to update framing rect here and invalidate view after that. <br/>
Expand Down
98 changes: 80 additions & 18 deletions core/src/main/java/me/dm7/barcodescanner/core/ViewFinderView.java
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,9 @@
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Canvas;
import android.graphics.CornerPathEffect;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Point;
import android.graphics.Rect;
import android.util.AttributeSet;
Expand All @@ -21,7 +23,7 @@ public class ViewFinderView extends View implements IViewFinder {
private static final float LANDSCAPE_WIDTH_HEIGHT_RATIO = 1.4f;
private static final int MIN_DIMENSION_DIFF = 50;

private static final float SQUARE_DIMENSION_RATIO = 5f/8;
private static final float DEFAULT_SQUARE_DIMENSION_RATIO = 5f / 8;

private static final int[] SCANNER_ALPHA = {0, 64, 128, 192, 255, 192, 128, 64};
private int scannerAlpha;
Expand All @@ -39,14 +41,17 @@ public class ViewFinderView extends View implements IViewFinder {
protected Paint mBorderPaint;
protected int mBorderLineLength;
protected boolean mSquareViewFinder;
private boolean mIsLaserEnabled;
private float mBordersAlpha;
private int mViewFinderOffset = 0;

public ViewFinderView(Context context) {
super(context);
init();
}

public ViewFinderView(Context context, AttributeSet attrs) {
super(context, attrs);
public ViewFinderView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
init();
}

Expand All @@ -65,27 +70,67 @@ private void init() {
mBorderPaint.setColor(mDefaultBorderColor);
mBorderPaint.setStyle(Paint.Style.STROKE);
mBorderPaint.setStrokeWidth(mDefaultBorderStrokeWidth);
mBorderPaint.setAntiAlias(true);

mBorderLineLength = mDefaultBorderLineLength;
}

@Override
public void setLaserColor(int laserColor) {
mLaserPaint.setColor(laserColor);
}

@Override
public void setMaskColor(int maskColor) {
mFinderMaskPaint.setColor(maskColor);
}

@Override
public void setBorderColor(int borderColor) {
mBorderPaint.setColor(borderColor);
}

@Override
public void setBorderStrokeWidth(int borderStrokeWidth) {
mBorderPaint.setStrokeWidth(borderStrokeWidth);
}

@Override
public void setBorderLineLength(int borderLineLength) {
mBorderLineLength = borderLineLength;
}

@Override
public void setLaserEnabled(boolean isLaserEnabled) { mIsLaserEnabled = isLaserEnabled; }

@Override
public void setBorderCornerRounded(boolean isBorderCornersRounded) {
if (isBorderCornersRounded) {
mBorderPaint.setStrokeJoin(Paint.Join.ROUND);
} else {
mBorderPaint.setStrokeJoin(Paint.Join.BEVEL);
}
}

@Override
public void setBorderAlpha(float alpha) {
int colorAlpha = (int) (255 * alpha);
mBordersAlpha = alpha;
mBorderPaint.setAlpha(colorAlpha);
}

@Override
public void setBorderCornerRadius(int borderCornersRadius) {
mBorderPaint.setPathEffect(new CornerPathEffect(borderCornersRadius));
}

@Override
public void setViewFinderOffset(int offset) {
mViewFinderOffset = offset;
}

// TODO: Need a better way to configure this. Revisit when working on 2.0
@Override
public void setSquareViewFinder(boolean set) {
mSquareViewFinder = set;
}
Expand All @@ -107,7 +152,10 @@ public void onDraw(Canvas canvas) {

drawViewFinderMask(canvas);
drawViewFinderBorder(canvas);
drawLaser(canvas);

if (mIsLaserEnabled) {
drawLaser(canvas);
}
}

public void drawViewFinderMask(Canvas canvas) {
Expand All @@ -123,18 +171,31 @@ public void drawViewFinderMask(Canvas canvas) {

public void drawViewFinderBorder(Canvas canvas) {
Rect framingRect = getFramingRect();

canvas.drawLine(framingRect.left - 1, framingRect.top - 1, framingRect.left - 1, framingRect.top - 1 + mBorderLineLength, mBorderPaint);
canvas.drawLine(framingRect.left - 1, framingRect.top - 1, framingRect.left - 1 + mBorderLineLength, framingRect.top - 1, mBorderPaint);

canvas.drawLine(framingRect.left - 1, framingRect.bottom + 1, framingRect.left - 1, framingRect.bottom + 1 - mBorderLineLength, mBorderPaint);
canvas.drawLine(framingRect.left - 1, framingRect.bottom + 1, framingRect.left - 1 + mBorderLineLength, framingRect.bottom + 1, mBorderPaint);

canvas.drawLine(framingRect.right + 1, framingRect.top - 1, framingRect.right + 1, framingRect.top - 1 + mBorderLineLength, mBorderPaint);
canvas.drawLine(framingRect.right + 1, framingRect.top - 1, framingRect.right + 1 - mBorderLineLength, framingRect.top - 1, mBorderPaint);

canvas.drawLine(framingRect.right + 1, framingRect.bottom + 1, framingRect.right + 1, framingRect.bottom + 1 - mBorderLineLength, mBorderPaint);
canvas.drawLine(framingRect.right + 1, framingRect.bottom + 1, framingRect.right + 1 - mBorderLineLength, framingRect.bottom + 1, mBorderPaint);
// Top-left corner
Path path = new Path();
path.moveTo(framingRect.left, framingRect.top + mBorderLineLength);
path.lineTo(framingRect.left, framingRect.top);
path.lineTo(framingRect.left + mBorderLineLength, framingRect.top);
canvas.drawPath(path, mBorderPaint);

// Top-right corner
path.moveTo(framingRect.right, framingRect.top + mBorderLineLength);
path.lineTo(framingRect.right, framingRect.top);
path.lineTo(framingRect.right - mBorderLineLength, framingRect.top);
canvas.drawPath(path, mBorderPaint);

// Bottom-right corner
path.moveTo(framingRect.right, framingRect.bottom - mBorderLineLength);
path.lineTo(framingRect.right, framingRect.bottom);
path.lineTo(framingRect.right - mBorderLineLength, framingRect.bottom);
canvas.drawPath(path, mBorderPaint);

// Bottom-left corner
path.moveTo(framingRect.left, framingRect.bottom - mBorderLineLength);
path.lineTo(framingRect.left, framingRect.bottom);
path.lineTo(framingRect.left + mBorderLineLength, framingRect.bottom);
canvas.drawPath(path, mBorderPaint);
}

public void drawLaser(Canvas canvas) {
Expand Down Expand Up @@ -166,10 +227,10 @@ public synchronized void updateFramingRect() {

if(mSquareViewFinder) {
if(orientation != Configuration.ORIENTATION_PORTRAIT) {
height = (int) (getHeight() * SQUARE_DIMENSION_RATIO);
height = (int) (getHeight() * DEFAULT_SQUARE_DIMENSION_RATIO);
width = height;
} else {
width = (int) (getWidth() * SQUARE_DIMENSION_RATIO);
width = (int) (getWidth() * DEFAULT_SQUARE_DIMENSION_RATIO);
height = width;
}
} else {
Expand All @@ -192,6 +253,7 @@ public synchronized void updateFramingRect() {

int leftOffset = (viewResolution.x - width) / 2;
int topOffset = (viewResolution.y - height) / 2;
mFramingRect = new Rect(leftOffset, topOffset, leftOffset + width, topOffset + height);
mFramingRect = new Rect(leftOffset + mViewFinderOffset, topOffset + mViewFinderOffset, leftOffset + width - mViewFinderOffset, topOffset + height - mViewFinderOffset);
}
}

13 changes: 12 additions & 1 deletion core/src/main/res/values/attrs.xml
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2,5 +2,16 @@
<resources>
<declare-styleable name="BarcodeScannerView">
<attr name="shouldScaleToFill" format="boolean" />
<attr name="laserEnabled" format="boolean" />
<attr name="laserColor" format="color" />
<attr name="borderColor" format="color" />
<attr name="maskColor" format="color" />
<attr name="borderWidth" format="dimension" />
<attr name="borderLength" format="dimension" />
<attr name="roundedCorner" format="boolean" />
<attr name="cornerRadius" format="dimension" />
<attr name="squaredFinder" format="boolean" />
<attr name="borderAlpha" format="float" />
<attr name="finderOffset" format="dimension" />
</declare-styleable>
</resources>
</resources>

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