Buttons changes

Special glyphs in the built-in font were introduced
to be used instead of images

app/src/main/res/drawable/ic_chevron_left_white_24dp.xml

@@ -1,9 +1,9 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="24dp"
-        android:height="24dp"
-        android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
     <path
         android:fillColor="#ffffff"
-        android:pathData="M15.41,7.41L14,6l-6,6 6,6 1.41,-1.41L10.83,12z"/>
+        android:pathData="M15.41,7.41L14,6l-6,6 6,6 1.41,-1.41L10.83,12z" />
 </vector>

app/src/main/res/drawable/ic_favorite_border_white_48dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M16.5,3c-1.74,0 -3.41,0.81 -4.5,2.09C10.91,3.81 9.24,3 7.5,3 4.42,3 2,5.42 2,8.5c0,3.78 3.4,6.86 8.55,11.54L12,21.35l1.45,-1.32C18.6,15.36 22,12.28 22,8.5 22,5.42 19.58,3 16.5,3zM12.1,18.55l-0.1,0.1 -0.1,-0.1C7.14,14.24 4,11.39 4,8.5 4,6.5 5.5,5 7.5,5c1.54,0 3.04,0.99 3.57,2.36h1.87C13.46,5.99 14.96,5 16.5,5c2,0 3.5,1.5 3.5,3.5 0,2.89 -3.14,5.74 -7.9,10.05z" />
+</vector>

app/src/main/res/drawable/ic_keyboard_arrow_left_white_48dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M15.41,16.09l-4.58,-4.59 4.58,-4.59L14,5.5l-6,6 6,6z" />
+</vector>

app/src/main/res/drawable/ic_keyboard_arrow_right_white_48dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M8.59,16.34l4.58,-4.59 -4.58,-4.59L10,5.75l6,6 -6,6z" />
+</vector>

app/src/main/res/layout-land/cpp_app_keyboard.xml

@@ -84,7 +84,7 @@
         a:baselineAligned="false"
         a:orientation="horizontal">
 
-        <include layout="@layout/cpp_app_button_paste" />
+        <include layout="@layout/cpp_app_button_like" />
 
         <include layout="@layout/cpp_app_button_percent" />
 

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

@@ -22,7 +22,7 @@
   ~ Site:  http://se.solovyev.org
   -->
 
-<org.solovyev.android.calculator.view.NumeralBasesButton
+<org.solovyev.android.views.dragbutton.DirectionDragImageButton
     android:id="@id/cpp_button_copy"
     style="?attr/cpp_button_style_control"
     xmlns:android="http://schemas.android.com/apk/res/android"

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

@@ -31,6 +31,6 @@
     a:text="="
     a:textColor="?attr/cpp_text_color"
     c:directionTextColor="?attr/cpp_text_color"
-    c:directionTextDown="@string/cpp_plot_button_text"
+    c:directionTextDown="@string/cpp_glyph_graph"
     c:directionTextUp="≡"
     tools:ignore="HardcodedText" />

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

@@ -28,5 +28,5 @@
     style="?attr/cpp_button_style_control"
     a:src="@drawable/ic_history_white_48dp"
     app:directionTextScale="0.5"
-    app:directionTextDown="@string/cpp_kb_redo"
-    app:directionTextUp="@string/cpp_kb_undo" />
+    app:directionTextDown="@string/cpp_glyph_redo"
+    app:directionTextUp="@string/cpp_glyph_undo" />

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

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright 2013 serso aka se.solovyev
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~    http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+  ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Contact details
+  ~
+  ~ Email: se.solovyev@gmail.com
+  ~ Site:  http://se.solovyev.org
+  -->
+
+<org.solovyev.android.views.dragbutton.DirectionDragImageButton
+    android:id="@id/cpp_button_like"
+    style="?attr/cpp_button_style_control"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_favorite_border_white_48dp" />

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

@@ -22,7 +22,7 @@
   ~ Site:  http://se.solovyev.org
   -->
 
-<org.solovyev.android.calculator.view.AngleUnitsButton
+<org.solovyev.android.views.dragbutton.DirectionDragImageButton
     android:id="@id/cpp_button_paste"
     style="?attr/cpp_button_style_control"
     xmlns:android="http://schemas.android.com/apk/res/android"

app/src/main/res/menu/main.xml

@@ -8,7 +8,7 @@
         app:showAsAction="never">
         <menu>
             <item
-                android:icon="@drawable/ic_chevron_left_24dp"
+                android:icon="@drawable/ic_chevron_left_white_24dp"
                 android:title="@string/cpp_mode"
                 app:showAsAction="never" />
             <item
@@ -30,7 +30,7 @@
         app:showAsAction="never">
         <menu>
             <item
-                android:icon="@drawable/ic_chevron_left_24dp"
+                android:icon="@drawable/ic_chevron_left_white_24dp"
                 android:title="@string/cpp_angles"
                 app:showAsAction="never" />
             <item
@@ -52,7 +52,7 @@
         app:showAsAction="never">
         <menu>
             <item
-                android:icon="@drawable/ic_chevron_left_24dp"
+                android:icon="@drawable/ic_chevron_left_white_24dp"
                 android:title="@string/cpp_radix"
                 app:showAsAction="never" />
             <item

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="cpp_glyph_paste" translatable="false">"\ue000"</string>
+    <string name="cpp_glyph_copy" translatable="false">"\ue001"</string>
+    <string name="cpp_glyph_left" translatable="false">"\ue002"</string>
+    <string name="cpp_glyph_right" translatable="false">"\ue003"</string>
+    <string name="cpp_glyph_backspace" translatable="false">"\ue004"</string>
+    <string name="cpp_glyph_history" translatable="false">"\ue005"</string>
+    <string name="cpp_glyph_heart" translatable="false">"\ue006"</string>
+    <string name="cpp_glyph_undo" translatable="false">"\ue007"</string>
+    <string name="cpp_glyph_redo" translatable="false">"\ue008"</string>
+    <string name="cpp_glyph_graph" translatable="false">"\ue009"</string>
+</resources>

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

@@ -17,8 +17,6 @@
     <string name="cpp_show_greek_keyboard" translatable="false">αβγ</string>
     <string name="cpp_exponent" translatable="false">E</string>
     <string name="cpp_theme_black" translatable="false">%1$s (AMOLED)</string>
-    <string name="cpp_glyph_paste">"\ue000"</string>
-    <string name="cpp_glyph_copy">"\ue001"</string>
     <string-array name="cpp_prefs_precisions" translatable="false">
         <item>0</item>
         <item>1</item>