Merge pull request #28 from alexzhirkevich/highlighting

Added highlighting for anchor elements

custom_qr_generator/src/main/java/com/github/alexzhirkevich/customqrgenerator/QrErrorCorrectionLevel.kt

@@ -21,33 +21,21 @@ enum class QrErrorCorrectionLevel(
 
     /**
      * ~7% of QR code can be damaged (or used as logo).
-     *
-     * QR code might be unreadable if logo is too big.
-     * If your code has logo, it's better to use [Auto].
      * */
     Low(ErrorCorrectionLevel.L),
 
     /**
      * ~15% of QR code can be damaged (or used as logo).
-     *
-     * QR code might be unreadable if logo is too big.
-     * If your code has logo, it's better to use [Auto].
      * */
     Medium(ErrorCorrectionLevel.M),
 
     /**
      * ~25% of QR code can be damaged (or used as logo).
-     *
-     * QR code might be unreadable if logo is too big.
-     * If your code has logo, it's better to use [Auto].
      * */
     MediumHigh(ErrorCorrectionLevel.Q),
 
     /**
      * ~30% of QR code can be damaged (or used as logo).
-     *
-     * QR code might be unreadable if logo is too big.
-     * If your code has logo, it's better to use [Auto].
      * */
     High(ErrorCorrectionLevel.H)
 }

custom_qr_generator/src/main/java/com/github/alexzhirkevich/customqrgenerator/QrHighlighting.kt

@@ -0,0 +1,44 @@
+package com.github.alexzhirkevich.customqrgenerator
+
+import androidx.annotation.FloatRange
+import com.github.alexzhirkevich.customqrgenerator.vector.style.QrVectorColor
+import com.github.alexzhirkevich.customqrgenerator.vector.style.QrVectorShapeModifier
+
+
+interface IAnchorsHighlighting {
+    val cornerEyes : HighlightingType
+    val versionEyes : HighlightingType
+    val timingLines : HighlightingType
+    val alpha : Float
+}
+
+
+
+/**
+ * Highlighting of the anchor QR code elements.
+ * Has the most impact when using a background image or color
+ *
+ * @param cornerEyes background highlighting of the corner eyes
+ * @param versionEyes background and draw mode of version eyes
+ * @param timingLines vertical and horizontal lines of interleaved pixels
+ * */
+data class QrHighlighting(
+    override val cornerEyes : HighlightingType = HighlightingType.None,
+    override val versionEyes : HighlightingType = HighlightingType.None,
+    override val timingLines : HighlightingType = HighlightingType.None,
+    @FloatRange(from = 0.0, to = 1.0) override val alpha: Float = .75f
+) : IAnchorsHighlighting
+
+
+
+sealed interface HighlightingType {
+
+    object None : HighlightingType
+
+    object Default : HighlightingType
+
+    class Styled(
+        val shape : QrVectorShapeModifier? = null,
+        val color : QrVectorColor? = null
+    ) : HighlightingType
+}

custom_qr_generator/src/main/java/com/github/alexzhirkevich/customqrgenerator/encoder/QrCodeMatrix.kt

@@ -4,7 +4,13 @@ import com.github.alexzhirkevich.customqrgenerator.style.Neighbors
 
 class QrCodeMatrix(val size : Int){
 
-    enum class PixelType { DarkPixel, LightPixel, Background, Logo }
+    enum class PixelType {
+        DarkPixel,
+        LightPixel,
+        Background,
+        Logo,
+        VersionEye,
+    }
 
     private var types = MutableList(size * size) {
         PixelType.Background