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+//
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+// CImageExtractViewController.m
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+// Samples
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+//
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+// Copyright © 2014-2023 PDF Technologies, Inc. All Rights Reserved.
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+//
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+// THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
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+// AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE ComPDFKit LICENSE AGREEMENT.
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+// UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
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+// This notice may not be removed from this file.
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+//
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+
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+#import "CImageExtractViewController.h"
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+
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+#import <ComPDFKit/ComPDFKit.h>
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+
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+//-----------------------------------------------------------------------------------------
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+// The sample code illustrates how to extract all images from PDF documents
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+//-----------------------------------------------------------------------------------------
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+
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+@interface CImageExtractViewController ()
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+
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+@property (nonatomic, strong) CPDFDocument *document;
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+
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+@property (nonatomic, assign) BOOL isRun;
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+
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+@property (nonatomic, strong) NSString *commandLineStr;
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+
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+@property (nonatomic, strong) NSMutableArray *imageFilePaths;
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+
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+@property (nonatomic, strong) NSMutableArray *imageNames;
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+
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+@end
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+
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+@implementation CImageExtractViewController
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+
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+- (void)viewDidLoad {
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+ [super viewDidLoad];
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+ // Do any additional setup after loading the view.
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+
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+ self.explainLabel.text = NSLocalizedString(@"The sample code illustrates how to extract all images from PDF documents using API.", nil);
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+
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+ self.commandLineTextView.text = @"";
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+ self.isRun = NO;
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+ self.commandLineStr = @"";
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+
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+ self.imageFilePaths = [NSMutableArray array];
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+ self.imageNames = [NSMutableArray array];
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+}
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+
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+#pragma mark - Samples Methods
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+
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+- (void)imageExtract:(CPDFDocument *)document {
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"-------------------------------------\n"];
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"Samples 1: Extract all images in the documentn"];
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"Opening the Samples PDF File\n"];
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+
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+ NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
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+ NSString *writeDirectoryPath = [NSString stringWithFormat:@"%@/%@", path, @"ImageExtract"];
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+
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+ // Copy file
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+ if (![[NSFileManager defaultManager] fileExistsAtPath:writeDirectoryPath])
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+ [[NSFileManager defaultManager] createDirectoryAtURL:[NSURL fileURLWithPath:writeDirectoryPath] withIntermediateDirectories:YES attributes:nil error:nil];
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+
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+ NSIndexSet *pages = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, document.pageCount)];
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+ [document extractImageFromPages:pages toPath:writeDirectoryPath];
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+
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+ NSArray *fileArray = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:writeDirectoryPath error:nil];
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+ for (NSString *fileName in fileArray) {
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+ NSString *filePath = [writeDirectoryPath stringByAppendingPathComponent:fileName];
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+ self.commandLineStr = [self.commandLineStr stringByAppendingFormat:@"%@\n", fileName];
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+ [self.imageFilePaths addObject:filePath];
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+ [self.imageNames addObject:fileName];
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+ }
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+}
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+
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+- (void)openFile:(NSString *)imageFilePath {
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+ UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:@[[NSURL fileURLWithPath:imageFilePath]] applicationActivities:nil];
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+ activityVC.definesPresentationContext = YES;
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+ if (UIUserInterfaceIdiomPad == UI_USER_INTERFACE_IDIOM()) {
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+ activityVC.popoverPresentationController.sourceView = self.openfileButton;
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+ activityVC.popoverPresentationController.sourceRect = self.openfileButton.bounds;
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+ }
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+ [self presentViewController:activityVC animated:YES completion:nil];
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+ activityVC.completionWithItemsHandler = ^(UIActivityType _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
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+
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+ if (completed) {
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+ NSLog(@"Success!");
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+ } else {
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+ NSLog(@"Failed Or Canceled!");
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+ }
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+ };
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+}
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+
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+#pragma mark - Action
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+
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+- (IBAction)buttonItemClick_openFile:(id)sender {
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+ // Determine whether to export the document
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+ if (self.isRun) {
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+ UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Choose a file to open...", nil) message:@"" preferredStyle:UIAlertControllerStyleAlert];
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+ if (UIUserInterfaceIdiomPad == UI_USER_INTERFACE_IDIOM()) {
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+ alertController.popoverPresentationController.sourceView = self.openfileButton;
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+ alertController.popoverPresentationController.sourceRect = self.openfileButton.bounds;
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+ }
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+
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+ for (int i = 0; i < self.imageFilePaths.count; i++) {
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+ NSString *imageName = [NSString stringWithFormat:@"%@", self.imageNames[i]];
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+ UIAlertAction *imageAction = [UIAlertAction actionWithTitle:NSLocalizedString(imageName, nil) style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
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+ // Open CreateBookmarkTest.pdf
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+ [self openFile:self.imageFilePaths[i]];
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+ }];
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+ [alertController addAction:imageAction];
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+ }
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+
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+ UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:nil];
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+
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+ [alertController addAction:cancelAction];
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+
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+ [self presentViewController:alertController animated:NO completion:nil];
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+ } else {
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+ UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Choose a file to open...", nil) message:@"" preferredStyle:UIAlertControllerStyleAlert];
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+ if (UIUserInterfaceIdiomPad == UI_USER_INTERFACE_IDIOM()) {
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+ alertController.popoverPresentationController.sourceView = self.openfileButton;
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+ alertController.popoverPresentationController.sourceRect = self.openfileButton.bounds;
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+ }
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+
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+ UIAlertAction *noAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"No files for this sample.", nil) style:UIAlertActionStyleDefault handler:nil];
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+
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+ UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:nil];
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+
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+ [alertController addAction:noAction];
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+ [alertController addAction:cancelAction];
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+
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+ [self presentViewController:alertController animated:NO completion:nil];
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+ }
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+}
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+
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+- (IBAction)buttonItemClick_run:(id)sender {
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+ self.isRun = YES;
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+
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"Running ImageExtract sample...\n\n"];
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+ [self imageExtract:self.document];
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"\nDone!\n"];
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+ self.commandLineStr = [self.commandLineStr stringByAppendingString:@"-------------------------------------\n"];
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+
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+ // Refresh commandline message
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+ self.commandLineTextView.text = self.commandLineStr;
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+}
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+
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+@end
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