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add on off for text overlay #29

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add on off for text overlay #29

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bfb671e
add on off for text overlay
mitchell6543 May 2, 2025
6e3a1b3
Update flutter_scalable_ocr.dart
mitchell6543 May 19, 2025
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9 changes: 7 additions & 2 deletions lib/flutter_scalable_ocr.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,8 @@ class ScalableOCR extends StatefulWidget {
this.paintboxCustom,
this.cameraSelection = 0,
this.torchOn,
this.lockCamera = true})
this.lockCamera = true,
this.showTextOverlay = true})
: super(key: key);

/// Offset on recalculated image left
Expand Down Expand Up @@ -59,6 +60,9 @@ class ScalableOCR extends StatefulWidget {
/// Lock camera orientation
final bool lockCamera;

/// Show text overlay
final bool showTextOverlay;

@override
ScalableOCRState createState() => ScalableOCRState();
}
Expand Down Expand Up @@ -384,7 +388,8 @@ class ScalableOCRState extends State<ScalableOCR> {
boxTopOff: widget.boxTopOff,
boxRightOff: widget.boxRightOff,
boxLeftOff: widget.boxRightOff,
paintboxCustom: widget.paintboxCustom);
paintboxCustom: widget.paintboxCustom,
showTextOverlay: widget.showTextOverlay);

customPaint = CustomPaint(painter: painter);
} else {
Expand Down
44 changes: 25 additions & 19 deletions lib/text_recognizer_painter.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,8 @@ class TextRecognizerPainter extends CustomPainter {
this.boxRightOff = 4,
this.boxTopOff = 2,
this.getRawData,
this.paintboxCustom});
this.paintboxCustom,
this.showTextOverlay = true});

/// ML kit recognizer
final RecognizedText recognizedText;
Expand Down Expand Up @@ -52,6 +53,9 @@ class TextRecognizerPainter extends CustomPainter {
/// Narower box paint
final Paint? paintboxCustom;

/// Show text overlay
final bool showTextOverlay;

@override
void paint(Canvas canvas, Size size) {
scannedText = "";
Expand Down Expand Up @@ -121,24 +125,26 @@ class TextRecognizerPainter extends CustomPainter {
var parsedText = textBlock.text;
scannedText += " ${textBlock.text}";

final ParagraphBuilder builder = ParagraphBuilder(
ParagraphStyle(
textAlign: TextAlign.left,
fontSize: 14,
textDirection: TextDirection.ltr),
);
builder.pushStyle(
ui.TextStyle(color: Colors.white, background: background));
builder.addText(parsedText);
builder.pop();

canvas.drawParagraph(
builder.build()
..layout(ParagraphConstraints(
width: right - left,
)),
Offset(left, top),
);
if (showTextOverlay) {
final ParagraphBuilder builder = ParagraphBuilder(
ParagraphStyle(
textAlign: TextAlign.left,
fontSize: 14,
textDirection: TextDirection.ltr),
);
builder.pushStyle(
ui.TextStyle(color: Colors.white, background: background));
builder.addText(parsedText);
builder.pop();

canvas.drawParagraph(
builder.build()
..layout(ParagraphConstraints(
width: right - left,
)),
Offset(left, top),
);
}
}
}
}
Expand Down