使用Scroll View显示一个文件夹的缩略图类似图片浏览器

Scroll View 控件显示一个文件夹的缩略图，类似图片浏览器

//
//  Document.m
// Created 2014-11-13 by DMD
// ShenZhen In China

#import “Document.h“
#import “ImageDataSource.h“

extern ImageDataSource *g_ImageDataSource;
Document *g_Document;

@implementation Document
@synthesize m_LB1;
- （id）init
{
    self = [super init];
    if （self）
    {
        g_Document = self;
    }
    return self;
}

- （NSString *）windowNibName
{
    // Override returning the nib file name of the document
    // If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers you should remove this method and override -makeWindowControllers instead.
    return @“Document“;
}

- （void）windowControllerDidLoadNib:（NSWindowController *）aController
{
    [super windowControllerDidLoadNib:aController];
    // Add any code here that needs to be executed once the windowController has loaded the document‘s window.
}

+ （BOOL）autosavesInPlace
{
    return YES;
}

- （IBAction）OnBT_SelectFolder:（id）sender
{
    NSOpenPanel *panel = [NSOpenPanel openPanel];
    NSString *msg=[NSString stringWithFormat:@“Select a folder“];
    
    //不让新打开的窗口在新窗口出现标题
    [panel setMessage:msg];
    [panel setPrompt:@“OK“];
    [panel setCanChooseDirectories:YES];
    [panel setCanCreateDirectories:YES];
    [panel setCanChooseFiles:NO];
    
    [panel beginSheetModalForWindow:[NSApp mainWindow] completionHandler:^（NSInteger result）
     {
         NSString *selected_folder=@““;
         if （result == NSFileHandlingPanelOKButton）
         {
             selected_folder=[[panel URL] path];
             [g_ImageDataSource Show_ThumbnailImages:selected_folder];
         }
     }];
}

- （IBAction）OnBT_SelectedAll:（id）sender
{
    [g_ImageDataSource SetSelected_All_or_None];
}


- （IBAction）OnBT_Changetitle:（id）sender
{
    //picture_id
    [g_ImageDataSource setID];
    
    //picture_path
    NSMutableArray *array_image_id = [[NSMutableArray alloc] init];
    NSMutableArray *array_image_path = [[NSMutableArray alloc] init];
    NSMutableArray *array_image_file_size = [[NSMutableArray alloc] init];
    int i=0;
    
    int i_pic_count = 10;//file_count need you change
    NSString *picture_id=nil;
    NSString *picture_path=nil;
    NSString *picture_file_size = nil;
    for （; i    {
        picture_id =[NSString stringWithFormat:@“ID%d“i+1];
        picture_path =[NSString stringWithFormat:@“Path%d“i+1];
        picture_file_size=[NSString stringWithFormat:@“Size%d“i+1];        
        [array_image_id addobject:picture_id];
        [array_image_path addobject:picture_path];
        [array_image_file_size addobject:picture_file_size];
    }
    
    [g_ImageDataSource setImagesPath:array_image_id
                           PhotoPath:array_image_path
                            PhotoFileSize:array_image_file_size];
}

-（void）ShowMessageInBottom:（NSString *）msg
{
    m_LB1.stringValue = msg;
}
@end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2014-11-13 15:03  learn_pictures_browser\
     文件        6148  2014-11-13 15:45  learn_pictures_browser\.DS_Store
     目录           0  2014-11-13 15:45  __MACOSX\
     目录           0  2014-11-13 15:45  __MACOSX\learn_pictures_browser\
     文件          82  2014-11-13 15:45  __MACOSX\learn_pictures_browser\._.DS_Store
     目录           0  2014-11-13 15:44  learn_pictures_browser\learn_pictures_browser\
     文件        6148  2014-11-13 14:14  learn_pictures_browser\learn_pictures_browser\.DS_Store
     目录           0  2014-11-13 15:45  __MACOSX\learn_pictures_browser\learn_pictures_browser\
     文件          82  2014-11-13 14:14  __MACOSX\learn_pictures_browser\learn_pictures_browser\._.DS_Store
     文件         188  2014-11-13 14:55  learn_pictures_browser\learn_pictures_browser\Document.h
     文件         171  2014-11-13 14:55  __MACOSX\learn_pictures_browser\learn_pictures_browser\._Document.h
     文件        2938  2014-11-13 15:02  learn_pictures_browser\learn_pictures_browser\Document.m
     文件         171  2014-11-13 15:02  __MACOSX\learn_pictures_browser\learn_pictures_browser\._Document.m
     目录           0  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\
     文件         261  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\.xccurrentversion
     目录           0  2014-11-13 15:45  __MACOSX\learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\
     文件         171  2014-11-13 14:13  __MACOSX\learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\._.xccurrentversion
     目录           0  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\Document.xcdatamodel\
     文件         350  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\Document.xcdatamodel\contents
     目录           0  2014-11-13 15:45  __MACOSX\learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\Document.xcdatamodel\
     文件         171  2014-11-13 14:13  __MACOSX\learn_pictures_browser\learn_pictures_browser\Document.xcdatamodeld\Document.xcdatamodel\._contents
     目录           0  2014-11-13 14:57  learn_pictures_browser\learn_pictures_browser\en.lproj\
     文件         436  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\en.lproj\Credits.rtf
     目录           0  2014-11-13 15:45  __MACOSX\learn_pictures_browser\learn_pictures_browser\en.lproj\
     文件         171  2014-11-13 14:13  __MACOSX\learn_pictures_browser\learn_pictures_browser\en.lproj\._Credits.rtf
     文件       47909  2014-11-13 14:57  learn_pictures_browser\learn_pictures_browser\en.lproj\Document.xib
     文件          45  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\en.lproj\InfoPlist.strings
     文件         171  2014-11-13 14:13  __MACOSX\learn_pictures_browser\learn_pictures_browser\en.lproj\._InfoPlist.strings
     文件      207921  2014-11-13 14:13  learn_pictures_browser\learn_pictures_browser\en.lproj\MainMenu.xib
     文件         171  2014-11-13 14:13  __MACOSX\learn_pictures_browser\learn_pictures_browser\en.lproj\._MainMenu.xib
     目录           0  2014-11-13 15:28  learn_pictures_browser\learn_pictures_browser\ImageBrowserView\
............此处省略58个文件信息