Fix some minor print UX bugs.

1. The last row of print options was not visible on a phone.

2. The preview page size on a phone in landscape unusably small.

3. Updated the Save to PDF icon.

bug:16966145

Change-Id: I25ce1572758c62f34344683af2452fb045bb857e
diff --git a/packages/PrintSpooler/res/drawable/ic_savetopdf.xml b/packages/PrintSpooler/res/drawable/ic_savetopdf.xml
new file mode 100644
index 0000000..60ed33a
--- /dev/null
+++ b/packages/PrintSpooler/res/drawable/ic_savetopdf.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     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.
+-->
+
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_menu_savetopdf"
+    android:tint="@color/promoted_action_background_color" />
diff --git a/packages/PrintSpooler/res/layout/preview_page.xml b/packages/PrintSpooler/res/layout/preview_page.xml
index 509a1d2..76dd76b 100644
--- a/packages/PrintSpooler/res/layout/preview_page.xml
+++ b/packages/PrintSpooler/res/layout/preview_page.xml
@@ -31,7 +31,7 @@
     <RelativeLayout
         android:id="@+id/page_footer"
         android:layout_width="fill_parent"
-        android:layout_height="32dip"
+        android:layout_height="@dimen/preview_page_footer_height"
         android:background="@*android:color/material_grey_500"
         android:orientation="horizontal">
 
diff --git a/packages/PrintSpooler/res/layout/print_activity.xml b/packages/PrintSpooler/res/layout/print_activity.xml
index 3905646..ee5d42a 100644
--- a/packages/PrintSpooler/res/layout/print_activity.xml
+++ b/packages/PrintSpooler/res/layout/print_activity.xml
@@ -27,7 +27,6 @@
         android:id="@+id/static_content"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
-        android:padding="16dip"
         android:elevation="@dimen/preview_controls_elevation"
         android:background="?android:attr/colorPrimary">
 
@@ -35,6 +34,7 @@
             android:id="@+id/destination_spinner"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginTop="4dip"
             android:dropDownWidth="wrap_content"
             android:minHeight="?android:attr/listPreferredItemHeightSmall">
         </Spinner>
@@ -56,7 +56,6 @@
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="8dip"
             android:layout_marginStart="12dip"
             android:textAppearance="?android:attr/textAppearanceSmall"
             android:labelFor="@+id/copies_count_summary"
@@ -67,7 +66,6 @@
             android:id="@+id/copies_count_summary"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="8dip"
             android:layout_marginStart="16dip"
             android:textAppearance="?android:attr/textAppearanceMedium"
             android:textColor="?android:attr/textColorPrimary">
@@ -76,7 +74,6 @@
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="8dip"
             android:layout_marginStart="32dip"
             android:textAppearance="?android:attr/textAppearanceSmall"
             android:labelFor="@+id/paper_size_summary"
@@ -87,7 +84,6 @@
             android:id="@+id/paper_size_summary"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="8dip"
             android:layout_marginStart="16dip"
             android:textAppearance="?android:attr/textAppearanceMedium"
             android:textColor="?android:attr/textColorPrimary">
diff --git a/packages/PrintSpooler/res/layout/print_activity_controls.xml b/packages/PrintSpooler/res/layout/print_activity_controls.xml
index ef6044a..31bda7e 100644
--- a/packages/PrintSpooler/res/layout/print_activity_controls.xml
+++ b/packages/PrintSpooler/res/layout/print_activity_controls.xml
@@ -267,8 +267,8 @@
              android:id="@+id/expand_collapse_icon"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
-             android:layout_marginTop="8dip"
-             android:layout_marginBottom="8dip"
+             android:layout_marginTop="4dip"
+             android:layout_marginBottom="4dip"
              android:layout_gravity="center"
              android:background="@drawable/ic_expand_more">
          </ImageView>
diff --git a/packages/PrintSpooler/res/values/constants.xml b/packages/PrintSpooler/res/values/constants.xml
index faad527..b95703b 100644
--- a/packages/PrintSpooler/res/values/constants.xml
+++ b/packages/PrintSpooler/res/values/constants.xml
@@ -45,4 +45,7 @@
     <fraction name="page_selected_alpha">100%</fraction>
     <fraction name="page_unselected_alpha">50%</fraction>
 
+    <dimen name="preview_page_footer_height">32dip</dimen>
+    <dimen name="preview_page_min_width">130dip</dimen>
+
 </resources>
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
index e976936..5bcdb9f 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
@@ -96,6 +96,7 @@
     private float mUnselectedPageAlpha;
 
     private int mPreviewPageMargin;
+    private int mPreviewPageMinWidth;
     private int mPreviewListPadding;
     private int mFooterHeight;
 
@@ -141,17 +142,17 @@
         mPreviewPageMargin = mContext.getResources().getDimensionPixelSize(
                 R.dimen.preview_page_margin);
 
+        mPreviewPageMinWidth = mContext.getResources().getDimensionPixelSize(
+                R.dimen.preview_page_min_width);
+
         mPreviewListPadding = mContext.getResources().getDimensionPixelSize(
                 R.dimen.preview_list_padding);
 
         mColumnCount = mContext.getResources().getInteger(
                 R.integer.preview_page_per_row_count);
 
-        TypedValue outValue = new TypedValue();
-        mContext.getTheme().resolveAttribute(
-                com.android.internal.R.attr.listPreferredItemHeightSmall, outValue, true);
-        mFooterHeight = TypedValue.complexToDimensionPixelSize(outValue.data,
-                mContext.getResources().getDisplayMetrics());
+        mFooterHeight = mContext.getResources().getDimensionPixelSize(
+                R.dimen.preview_page_footer_height);
 
         mPreviewArea = previewArea;
 
@@ -428,8 +429,12 @@
         // Compute max page height.
         final int pageContentDesiredHeight = (int) (((float) pageContentDesiredWidth
                 / pageAspectRatio) + 0.5f);
-        final int pageContentMaxHeight = availableHeight - 2 * (mPreviewListPadding
-                + mPreviewPageMargin) - mFooterHeight;
+
+        // If the page does not fit entirely in a vertial direction,
+        // we shirk it but not less than the minimal page width.
+        final int pageContentMinHeight = (int) (mPreviewPageMinWidth / pageAspectRatio + 0.5f);
+        final int pageContentMaxHeight = Math.max(pageContentMinHeight,
+                availableHeight - 2 * (mPreviewListPadding + mPreviewPageMargin) - mFooterHeight);
 
         mPageContentHeight = Math.min(pageContentDesiredHeight, pageContentMaxHeight);
         mPageContentWidth = (int) ((mPageContentHeight * pageAspectRatio) + 0.5f);
@@ -439,10 +444,17 @@
 
         final int rowCount = mSelectedPageCount / columnCount
                 + ((mSelectedPageCount % columnCount) > 0 ? 1 : 0);
-        final int totalContentHeight = rowCount* (mPageContentHeight + mFooterHeight + 2
+        final int totalContentHeight = rowCount * (mPageContentHeight + mFooterHeight + 2
                 * mPreviewPageMargin);
-        final int verticalPadding = Math.max(mPreviewListPadding,
-                (availableHeight - totalContentHeight) / 2);
+
+        final int verticalPadding;
+        if (mPageContentHeight + mFooterHeight + mPreviewListPadding > availableHeight) {
+            verticalPadding = Math.max(mPreviewPageMargin,
+                    (availableHeight - totalContentHeight) / 2);
+        } else {
+            verticalPadding = Math.max(mPreviewListPadding,
+                    (availableHeight - totalContentHeight) / 2);
+        }
 
         mPreviewArea.setPadding(horizontalPadding, verticalPadding,
                 horizontalPadding, verticalPadding);
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index a1b1aec..6b29e5f 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -1704,7 +1704,7 @@
                 if (position == 0 && getPdfPrinter() != null) {
                     PrinterHolder printerHolder = (PrinterHolder) getItem(position);
                     title = printerHolder.printer.getName();
-                    icon = getResources().getDrawable(com.android.internal.R.drawable.ic_menu_save);
+                    icon = getResources().getDrawable(R.drawable.ic_savetopdf);
                 } else if (position == 1) {
                     title = getString(R.string.all_printers);
                 }
@@ -1712,7 +1712,7 @@
                 if (position == 1 && getPdfPrinter() != null) {
                     PrinterHolder printerHolder = (PrinterHolder) getItem(position);
                     title = printerHolder.printer.getName();
-                    icon = getResources().getDrawable(com.android.internal.R.drawable.ic_menu_save);
+                    icon = getResources().getDrawable(R.drawable.ic_savetopdf);
                 } else if (position == getCount() - 1) {
                     title = getString(R.string.all_printers);
                 } else {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/widget/PageContentView.java b/packages/PrintSpooler/src/com/android/printspooler/widget/PageContentView.java
index 4d2cb6c..8365373 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/widget/PageContentView.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/widget/PageContentView.java
@@ -94,7 +94,7 @@
         mMinMargins = minMargins;
         mContentRequested = false;
 
-        // If there is not provider we want immediately to switch to
+        // If there is no provider we want immediately to switch to
         // the empty state, so pages with no content appear blank.
         if (mProvider == null && getBackground() != mEmptyState) {
             setBackground(mEmptyState);
diff --git a/packages/PrintSpooler/src/com/android/printspooler/widget/PrintOptionsLayout.java b/packages/PrintSpooler/src/com/android/printspooler/widget/PrintOptionsLayout.java
index 01f4a04..71f4aa7 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/widget/PrintOptionsLayout.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/widget/PrintOptionsLayout.java
@@ -162,7 +162,7 @@
             }
 
             cellStart = getPaddingStart();
-            cellTop += cellTop + rowHeight;
+            cellTop += rowHeight;
         }
     }