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黑人夏川

QT MAC下文件文件夹混合多选对话框解决方案

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问题描述

由于QFileDialog仅支持多选文件或者单选目录，但是有些场景又需要文件文件夹混合多选。

Qt文档

The QFileDialog class enables a user to traverse the file system in order to select one or many files or a directory.

机翻

QFileDialog 类使用户能够遍历文件系统以选择一个或多个文件或目录。

解决方案

使用mac下系统对话框

MacFileDialog.mm

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#include "macdialog.hpp"

#include <QStringList>

#import <Appkit/NSOpenPanel.h>
#import <Foundation/Foundation.h>

QEventLoop loop;

QStringList getMacFiles()
{
    QStringList files;
    NSMutableArray *fileURLArray = [[NSMutableArray alloc] init];

    NSOpenPanel *mySelectPanel = [NSOpenPanel openPanel];
    [mySelectPanel setCanChooseDirectories:YES];
    [mySelectPanel setCanChooseFiles:YES];
    [mySelectPanel setCanCreateDirectories:YES];
    [mySelectPanel setAllowsMultipleSelection:YES];
    [mySelectPanel setResolvesAliases:YES];

    //界面出现在电脑屏幕中央
    [mySelectPanel beginWithCompletionHandler:^(NSInteger result) {
        if (result == NSModalResponseOK) {
            NSLog(@"OK");
            for (NSURL *url in [mySelectPanel URLs]) {
                NSString *path = [NSString stringWithString:[url path]];
                //path = [path stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
                //path = [path stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
                [fileURLArray addObject:path];
                //NSLog(@"%@", path);
            }
            NSLog(@"%@", fileURLArray);
        } else if (result == NSModalResponseCancel) {
            NSLog(@"Cancel");
        } else if (result == NSModalResponseStop) {
            NSLog(@"Stop");
        }
        loop.quit();
    }];

    loop.exec();
    for (NSString *a in fileURLArray) {
        files.append(QString::fromNSString(a));
    }
    return files;
}

pro

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mac{
    HEADERS += $$PWD/macdialog.hpp
    SOURCES += $$PWD/macdialog.mm
    
    LIBS += \
     -framework AppKit \
     -framework CoreFoundation
}