allow customizing the editor draw brush width

app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/EditActivity.kt

@@ -445,13 +445,28 @@ class EditActivity : SimpleActivity(), CropImageView.OnCropImageCompleteListener
 
     private fun setupDrawButtons() {
         updateDrawColor(config.lastEditorDrawColor)
-        bottom_draw_color.setOnClickListener {
+        bottom_draw_width.progress = config.lastEditorBrushSize
+        updateBrushSize(config.lastEditorBrushSize)
+
+        bottom_draw_color_clickable.setOnClickListener {
             ColorPickerDialog(this, drawColor) { wasPositivePressed, color ->
                 if (wasPositivePressed) {
                     updateDrawColor(color)
                 }
             }
         }
+
+        bottom_draw_width.onSeekBarChangeListener {
+            config.lastEditorBrushSize = it
+            updateBrushSize(it)
+        }
+    }
+
+    private fun updateBrushSize(percent: Int) {
+        editor_draw_canvas.updateBrushSize(percent)
+        val scale = Math.max(0.03f, percent / 100f)
+        bottom_draw_color.scaleX = scale
+        bottom_draw_color.scaleY = scale
     }
 
     private fun updatePrimaryActionButtons() {

app/src/main/kotlin/com/simplemobiletools/gallery/pro/helpers/Config.kt

@@ -457,4 +457,8 @@ class Config(context: Context) : BaseConfig(context) {
     var lastEditorDrawColor: Int
         get() = prefs.getInt(LAST_EDITOR_DRAW_COLOR, primaryColor)
         set(lastEditorDrawColor) = prefs.edit().putInt(LAST_EDITOR_DRAW_COLOR, lastEditorDrawColor).apply()
+
+    var lastEditorBrushSize: Int
+        get() = prefs.getInt(LAST_EDITOR_BRUSH_SIZE, 50)
+        set(lastEditorBrushSize) = prefs.edit().putInt(LAST_EDITOR_BRUSH_SIZE, lastEditorBrushSize).apply()
 }

app/src/main/kotlin/com/simplemobiletools/gallery/pro/helpers/Constants.kt

@@ -77,6 +77,7 @@ const val GROUP_DIRECT_SUBFOLDERS = "group_direct_subfolders"
 const val SHOW_WIDGET_FOLDER_NAME = "show_widget_folder_name"
 const val ALLOW_ONE_TO_ONE_ZOOM = "allow_one_to_one_zoom"
 const val LAST_EDITOR_DRAW_COLOR = "last_editor_draw_color"
+const val LAST_EDITOR_BRUSH_SIZE = "last_editor_brush_size"
 
 // slideshow
 const val SLIDESHOW_INTERVAL = "slideshow_interval"

app/src/main/kotlin/com/simplemobiletools/gallery/pro/views/EditorDrawCanvas.kt

@@ -8,6 +8,7 @@ import android.graphics.Paint
 import android.util.AttributeSet
 import android.view.MotionEvent
 import android.view.View
+import com.simplemobiletools.gallery.pro.R
 import com.simplemobiletools.gallery.pro.extensions.config
 import com.simplemobiletools.gallery.pro.models.MyPath
 import com.simplemobiletools.gallery.pro.models.PaintOptions
@@ -122,6 +123,10 @@ class EditorDrawCanvas(context: Context, attrs: AttributeSet) : View(context, at
         mPaintOptions.color = newColor
     }
 
+    fun updateBrushSize(newBrushSize: Int) {
+        mPaintOptions.strokeWidth = resources.getDimension(R.dimen.full_brush_size) * (newBrushSize / 100f)
+    }
+
     fun updateBackgroundBitmap(bitmap: Bitmap) {
         backgroundBitmap = bitmap
         invalidate()

app/src/main/res/layout/bottom_editor_draw_actions.xml

@@ -7,16 +7,39 @@
     android:layout_height="@dimen/bottom_actions_height"
     android:layout_alignParentBottom="true">
 
+    <com.simplemobiletools.commons.views.MySeekBar
+        android:id="@+id/bottom_draw_width"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginLeft="@dimen/activity_margin"
+        android:layout_marginRight="@dimen/activity_margin"
+        android:max="100"
+        android:progress="50"
+        app:layout_constraintBottom_toBottomOf="@id/bottom_draw_color"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toLeftOf="@+id/bottom_draw_color"
+        app:layout_constraintTop_toTopOf="@+id/bottom_draw_color"/>
+
+    <ImageView
+        android:id="@+id/bottom_draw_color_clickable"
+        android:layout_width="@dimen/bottom_editor_color_picker_size"
+        android:layout_height="@dimen/bottom_editor_color_picker_size"
+        android:layout_marginRight="@dimen/activity_margin"
+        android:background="?attr/selectableItemBackgroundBorderless"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"/>
+
     <ImageView
         android:id="@+id/bottom_draw_color"
         android:layout_width="@dimen/bottom_editor_color_picker_size"
         android:layout_height="@dimen/bottom_editor_color_picker_size"
-        android:layout_marginEnd="@dimen/activity_margin"
+        android:layout_marginRight="@dimen/activity_margin"
-        android:background="?attr/selectableItemBackgroundBorderless"
+        android:clickable="false"
         android:padding="@dimen/small_margin"
         android:src="@drawable/circle_background"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent"/>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/dimens.xml

@@ -19,4 +19,5 @@
     <dimen name="bottom_editor_actions_shadow_height">180dp</dimen>
     <dimen name="default_status_action_height">86dp</dimen>
     <dimen name="widget_initial_size">110dp</dimen>
+    <dimen name="full_brush_size">40dp</dimen>
 </resources>