Add color preference preview

4 files changed, 33 insertions, 5 deletions

diff --git a/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/CircleView.kt b/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/CircleView.kt
index a40895e..1b5e0fe 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/CircleView.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/dialogs/color/CircleView.kt
@@ -37,6 +37,7 @@ import ca.allanwang.kau.utils.toHSV
  */
 class CircleView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) : FrameLayout(context, attrs, defStyleAttr) {
 
+    private val borderWidthMicro: Float = context.getDip(1f)
     private val borderWidthSmall: Float = context.getDip(3f)
     private val borderWidthLarge: Float = context.getDip(5f)
     private var whiteOuterBound: Float = borderWidthLarge
@@ -45,6 +46,14 @@ class CircleView @JvmOverloads constructor(context: Context, attrs: AttributeSet
     private val whitePaint: Paint = Paint().apply { isAntiAlias = true; color = Color.WHITE }
     private val innerPaint: Paint = Paint().apply { isAntiAlias = true }
     private var selected: Boolean = false
+    var withBorder: Boolean = false
+        get() = field
+        set(value) {
+            if (field != value) {
+                field = value
+                invalidate()
+            }
+        }
 
     init {
         update(Color.DKGRAY)
@@ -134,18 +143,19 @@ class CircleView @JvmOverloads constructor(context: Context, attrs: AttributeSet
         super.onDraw(canvas)
         val centerWidth = (measuredWidth / 2).toFloat()
         val centerHeight = (measuredHeight / 2).toFloat()
+        if (withBorder) canvas.drawCircle(centerWidth, centerHeight, centerWidth, whitePaint)
         if (selected) {
             val whiteRadius = centerWidth - whiteOuterBound
             val innerRadius = whiteRadius - borderWidthSmall
             if (whiteRadius >= centerWidth) {
                 canvas.drawCircle(centerWidth, centerHeight, centerWidth, whitePaint)
             } else {
-                canvas.drawCircle(centerWidth, centerHeight, centerWidth, outerPaint)
+                canvas.drawCircle(centerWidth, centerHeight, if (withBorder) centerWidth - borderWidthMicro else centerWidth, outerPaint)
                 canvas.drawCircle(centerWidth, centerHeight, whiteRadius, whitePaint)
             }
             canvas.drawCircle(centerWidth, centerHeight, innerRadius, innerPaint)
         } else {
-            canvas.drawCircle(centerWidth, centerHeight, centerWidth, innerPaint)
+            canvas.drawCircle(centerWidth, centerHeight, if (withBorder) centerWidth - borderWidthMicro else centerWidth, innerPaint)
         }
     }
 
diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
index fc3b6ff..62f3d45 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
@@ -46,7 +46,8 @@ class KPrefAdapterBuilder {
                     enabler: () -> Boolean = { true },
                     getter: () -> Int,
                     setter: (value: Int) -> Unit,
-                    configs: Builder.() -> Unit = {}) = list.add(KPrefColorPicker(this, title, description, iicon, enabler, getter, setter, configs))
+                    configs: Builder.() -> Unit = {},
+                    showPreview: Boolean = true) = list.add(KPrefColorPicker(this, title, description, iicon, enabler, getter, setter, configs, showPreview))
 
     internal val list: MutableList<KPrefItemCore> = mutableListOf()
 
diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefColorPicker.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefColorPicker.kt
index b590233..f157d1c 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefColorPicker.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/items/KPrefColorPicker.kt
@@ -4,6 +4,7 @@ import android.support.annotation.StringRes
 import android.view.View
 import ca.allanwang.kau.R
 import ca.allanwang.kau.dialogs.color.Builder
+import ca.allanwang.kau.dialogs.color.CircleView
 import ca.allanwang.kau.dialogs.color.colorPickerDialog
 import ca.allanwang.kau.kpref.KPrefAdapterBuilder
 import com.mikepenz.iconics.typeface.IIcon
@@ -21,11 +22,17 @@ class KPrefColorPicker(builder: KPrefAdapterBuilder,
                        enabler: () -> Boolean = { true },
                        getter: () -> Int,
                        setter: (value: Int) -> Unit,
-                       val configs: Builder.() -> Unit = {}) : KPrefItemBase<Int>(builder, title, description, iicon, enabler, getter, setter) {
+                       val configs: Builder.() -> Unit = {},
+                       val showPreview: Boolean = false) : KPrefItemBase<Int>(builder, title, description, iicon, enabler, getter, setter) {
 
     override fun onPostBindView(viewHolder: ViewHolder, textColor: Int?, accentColor: Int?) {
         super.onPostBindView(viewHolder, textColor, accentColor)
         //TODO add color circle view
+        if (showPreview) {
+            val preview = viewHolder.bindInnerView<CircleView>(R.layout.kau_preference_color_preview)
+            preview.setBackgroundColor(pref)
+            preview.withBorder = true
+        }
     }
 
 
@@ -33,7 +40,11 @@ class KPrefColorPicker(builder: KPrefAdapterBuilder,
         itemView.context.colorPickerDialog {
             titleRes = this@KPrefColorPicker.title
             defaultColor = pref
-            colorCallbacks.add { pref = it }
+            colorCallbacks.add {
+                pref = it
+                if (showPreview)
+                    (innerContent as CircleView).setBackgroundColor(it)
+            }
             applyNestedBuilder(configs)
         }.show()
         return true
diff --git a/library/src/main/res/layout/kau_preference_color_preview.xml b/library/src/main/res/layout/kau_preference_color_preview.xml
new file mode 100644
index 0000000..2374971
--- /dev/null
+++ b/library/src/main/res/layout/kau_preference_color_preview.xml
@@ -0,0 +1,6 @@
+<ca.allanwang.kau.dialogs.color.CircleView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/kau_pref_inner_content"
+    android:layout_width="40dp"
+    android:layout_height="40dp"
+    android:focusable="false"
+    android:clickable="false" />
\ No newline at end of file