#420-add splitting options (#567)

Shivamdhuria · Swati4star · commit e81f8075d261 · 2019-02-22T21:59:22.000+05:30
diff --git a/app/src/main/java/swati4star/createpdf/fragment/SplitFilesFragment.java b/app/src/main/java/swati4star/createpdf/fragment/SplitFilesFragment.java
@@ -3,7 +3,9 @@
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.pdf.PdfRenderer;
 import android.os.Bundle;
+import android.os.ParcelFileDescriptor;
 import android.support.annotation.NonNull;
 import android.support.design.widget.BottomSheetBehavior;
 import android.support.v4.app.Fragment;
@@ -12,6 +14,7 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.EditText;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
@@ -20,6 +23,9 @@
 import com.airbnb.lottie.LottieAnimationView;
 import com.dd.morphingbutton.MorphingButton;
 
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.IOException;
 import java.util.ArrayList;
 
 import butterknife.BindView;
@@ -37,6 +43,7 @@
 import swati4star.createpdf.util.ViewFilesDividerItemDecoration;
 
 import static android.app.Activity.RESULT_OK;
+import static android.os.ParcelFileDescriptor.MODE_READ_ONLY;
 import static swati4star.createpdf.util.CommonCodeUtils.populateUtil;
 import static swati4star.createpdf.util.FileUriUtils.getFilePath;
 import static swati4star.createpdf.util.StringUtils.showSnackbar;
@@ -73,6 +80,8 @@ public class SplitFilesFragment extends Fragment implements MergeFilesAdapter.On
     RecyclerView mSplittedFiles;
     @BindView(R.id.splitfiles_text)
     TextView splitFilesSuccessText;
+    @BindView(R.id.split_config)
+    EditText mSplitConfitEditText;
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
@@ -111,7 +120,8 @@ public void onActivityResult(int requestCode, int resultCode, Intent data) throw
 
     @OnClick(R.id.splitFiles)
     public void parse() {
-        ArrayList<String> outputFilePaths = mPDFUtils.splitPDF(mPath);
+        ArrayList<String> outputFilePaths = mPDFUtils.splitPDFByConfig(mPath,
+                mSplitConfitEditText.getText().toString());
         int numberOfPages = outputFilePaths.size();
         if (numberOfPages > 0) {
             String output = String.format(mActivity.getString(R.string.split_success), numberOfPages);
@@ -156,6 +166,33 @@ private void setTextAndActivateButtons(String path) {
         mPath = path;
         mMorphButtonUtility.setTextAndActivateButtons(path,
                 selectFileButton, splitFilesButton);
+        mSplitConfitEditText.setVisibility(View.VISIBLE);
+        mSplitConfitEditText.setText(getDefaultSplitConfig(mPath));
+    }
+
+    /**
+     * Gets the total number of pages in the
+     * selected PDF and returns them in
+     * default format for single page pdfs
+     * (1,2,3,4,5,)
+     */
+    private String getDefaultSplitConfig(String mPath) {
+        String splitConfig = "";
+        ParcelFileDescriptor fileDescriptor = null;
+        try {
+            if (mPath != null)
+                fileDescriptor = ParcelFileDescriptor.open(new File(mPath), MODE_READ_ONLY);
+            if (fileDescriptor != null) {
+                PdfRenderer renderer = new PdfRenderer(fileDescriptor);
+                final int pageCount = renderer.getPageCount();
+                for (int i = 1; i <= pageCount; i++) {
+                    splitConfig = splitConfig + i + ",";
+                }
+            }
+        } catch (Exception er) {
+            er.printStackTrace();
+        }
+        return splitConfig;
     }
 
     @Override
diff --git a/app/src/main/java/swati4star/createpdf/util/PDFUtils.java b/app/src/main/java/swati4star/createpdf/util/PDFUtils.java
@@ -44,11 +44,13 @@
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
+import java.util.Arrays;
 
 import swati4star.createpdf.R;
 import swati4star.createpdf.database.DatabaseHelper;
@@ -59,6 +61,7 @@
 import static swati4star.createpdf.util.Constants.MASTER_PWD_STRING;
 import static swati4star.createpdf.util.Constants.STORAGE_LOCATION;
 import static swati4star.createpdf.util.Constants.appName;
+import static swati4star.createpdf.util.Constants.pdfExtension;
 import static swati4star.createpdf.util.DialogUtils.createCustomDialogWithoutContent;
 import static swati4star.createpdf.util.StringUtils.getDefaultStorageLocation;
 import static swati4star.createpdf.util.StringUtils.getSnackbarwithAction;
@@ -118,7 +121,7 @@ public void showDetails(File file) {
      * Create a PDF from a Text File
      *
      * @param mTextToPDFOptions TextToPDFOptions Object
-     * @param fileExtension file extension represented as string
+     * @param fileExtension     file extension represented as string
      */
     public void createPdf(TextToPDFOptions mTextToPDFOptions, String fileExtension)
             throws DocumentException, IOException {
@@ -430,8 +433,9 @@ protected void onPostExecute(String s) {
 
     /**
      * Main function to add images to PDF
+     *
      * @param inputPath - path of input PDF
-     * @param output - path of output PDF
+     * @param output    - path of output PDF
      * @param imagesUri - list of images to add
      * @return true, if succeeded, otherwise false
      */
@@ -504,25 +508,61 @@ public boolean reorderRemovePDF(String inputPath, String output, String pages) {
         }
     }
 
-    public ArrayList<String> splitPDF(String path) {
+    /**
+     * Breaks up the splitDetail String into ranges where a ","
+     * is found
+     * @param path the input pdf path
+     * @param splitDetail string that contains split configuration
+     * @return
+     */
+    public ArrayList<String> splitPDFByConfig(String path, String splitDetail) {
+        String splitConfig = splitDetail.replaceAll("\\s+", "");
         ArrayList<String> outputPaths = new ArrayList<>();
+        String delims = "[,]";
+        String[] ranges = splitConfig.split(delims);
+        Log.v("Ranges", Arrays.toString(ranges));
         try {
             String folderPath = mSharedPreferences.getString(STORAGE_LOCATION,
                     getDefaultStorageLocation());
             PdfReader reader = new PdfReader(path);
             PdfCopy copy;
             Document document;
-            int pages = reader.getNumberOfPages();
-            for (int i = 1; i <= pages; i++) {
-                document = new Document();
+            for (String range : ranges) {
+                int startPage;
+                int endPage;
+
                 String fileName = folderPath + FileUtils.getFileName(path);
-                fileName = fileName.replace(mContext.getString(R.string.pdf_ext),
-                        i + mContext.getString(R.string.pdf_ext));
-                Log.v("splitting", fileName);
-                copy = new PdfCopy(document, new FileOutputStream(fileName));
-                document.open();
-                copy.addPage(copy.getImportedPage(reader, i));
-                document.close();
+
+                /**
+                 * If the pdf is single page only then convert whole range into int
+                 * else break the range on "-",where startpage will be substring
+                 * from first letter to "-" and endpage will be from "-" till last letter.
+                 *
+                 */
+                if (!range.contains("-")) {
+                    startPage = Integer.parseInt(range);
+                    document = new Document();
+                    fileName = fileName.replace(pdfExtension,
+                            "_" + startPage + pdfExtension);
+                    copy = new PdfCopy(document, new FileOutputStream(fileName));
+
+                    document.open();
+                    copy.addPage(copy.getImportedPage(reader, startPage));
+                    document.close();
+
+                } else {
+                    startPage = Integer.parseInt(range.substring(0, range.indexOf("-")));
+                    endPage = Integer.parseInt(range.substring(range.indexOf("-") + 1));
+                    document = new Document();
+                    fileName = fileName.replace(pdfExtension,
+                            "_" + startPage + "-" + endPage + pdfExtension);
+                    copy = new PdfCopy(document, new FileOutputStream(fileName));
+                    document.open();
+                    for (int page = startPage; page <= endPage; page++) {
+                        copy.addPage(copy.getImportedPage(reader, page));
+                    }
+                    document.close();
+                }
                 outputPaths.add(fileName);
                 new DatabaseHelper(mContext).insertRecord(fileName,
                         mContext.getString(R.string.created));
diff --git a/app/src/main/res/layout/fragment_split_files.xml b/app/src/main/res/layout/fragment_split_files.xml
@@ -5,27 +5,14 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:app="http://schemas.android.com/apk/res-auto"
-        xmlns:tools="http://schemas.android.com/tools"
+    <LinearLayout
         android:id="@+id/tableLayout"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical"
         android:stretchColumns="*"
         tools:context=".fragment.AddImagesFragment">
 
-        <TextView
-            android:id="@+id/split_info"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center"
-            android:textSize="15sp"
-            android:textStyle="bold"
-            android:padding="5dp"
-            android:layout_marginTop="5dp"
-            android:text="@string/split_info"/>
-
         <com.dd.morphingbutton.MorphingButton
             android:id="@+id/selectFile"
             style="@style/MorphingButton"
@@ -38,6 +25,27 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
+        <EditText
+            android:id="@+id/split_config"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:ems="10"
+            android:inputType="textPersonName"
+            android:text="Name"
+            android:visibility="gone" />
+
+        <TextView
+            android:id="@+id/split_info"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="5dp"
+            android:gravity="center"
+            android:padding="5dp"
+            android:text="@string/split_info"
+            android:textSize="15sp"
+            android:textStyle="bold" />
+
         <com.dd.morphingbutton.MorphingButton
             android:id="@+id/splitFiles"
             style="@style/MorphingButton"
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
@@ -275,7 +275,7 @@
     <string name="font_family_edit">Cambiar valor de la letra fuente por defecto</string>
     <string name="font_size_edit">Cambiar valor del Tamaño del Texto por defecto</string>
     <string name="settings_info">Puede modificar los valores por defecto de varias opciones aquí.</string>
-    <string name="split_info">El PDF será dividido en múltiples PDFs de una sola página.</string>
+    <string name="split_info">The PDF will be split into multiple PDFs.Format example: 1&#8211;5,6&#8211;7,8,9</string>
     <string name="border_width_prompt">Ingrese unidades anchura del borde</string>
     <string name="default_content_description">sin descripción</string>
     <string name="prompt_input">Ingrese aquí</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
@@ -276,7 +276,7 @@
     <string name="font_family_edit">Change default font family</string>
     <string name="font_size_edit">Change default font size</string>
     <string name="settings_info">You can modify the default value for various settings here.</string>
-    <string name="split_info">The PDF will be split into multiple PDFs of single page.</string>
+    <string name="split_info">The PDF will be split into multiple PDFs.Format example: 1&#8211;5,6&#8211;7,8,9</string>
     <string name="border_width_prompt">Enter border width units</string>
     <string name="default_content_description">no description</string>
     <string name="prompt_input">Enter here</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
@@ -275,7 +275,7 @@
     <string name="font_family_edit">Change default font family</string>
     <string name="font_size_edit">Change default font size</string>
     <string name="settings_info">You can modify the default value for various settings here.</string>
-    <string name="split_info">The PDF will be split into multiple PDFs of single page.</string>
+    <string name="split_info">The PDF will be split into multiple PDFs.Format example: 1&#8211;5,6&#8211;7,8,9</string>
     <string name="border_width_prompt">Enter border width units</string>
     <string name="default_content_description">no description</string>
     <string name="prompt_input">Enter here</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
@@ -283,7 +283,7 @@
     <!-- Split PDF -->
     <string name="split_pdf">Разделить PDF</string>
     <string name="split_success">Выбранный PDF файл успешно разделен на %1$d </string>
-    <string name="split_info">PDF файл будел разделен на несколько одностраничных файлов.</string>
+    <string name="split_info">The PDF will be split into multiple PDFs.Format example: 1&#8211;5,6&#8211;7,8,9</string>
 
     <!-- Remove Pages -->
     <string name="remove_pages">Удалить страницы</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -339,7 +339,7 @@
     <!-- Split PDF -->
     <string name="split_pdf">Split PDF</string>
     <string name="split_success">The selected PDF was split successfully. It was split into %1$d PDF(s)</string>
-    <string name="split_info">The PDF will be split into multiple PDFs of single page.</string>
+    <string name="split_info">The PDF will be split into multiple PDFs.Format example: 1&#8211;5,6&#8211;7,8,9</string>
 
     <!-- Remove Pages -->
     <string name="remove_pages">Remove Pages</string>
