Question

我使用以下函数在java中打印文档：

#include <set>
#include <map>
#include <utility>
#include <type_traits>

// (commented code are some other *failed* attempt).
template <typename Iterator, typename Lambda>
auto makeSet(Iterator first, Iterator last, Lambda &&f) {

    typedef typename std::remove_reference<decltype(first->first)>::type const_first_t;

    typedef typename std::remove_const<const_first_t>::type first_t;

    typedef typename std::remove_reference<decltype(first->second)>::type second_t;

    typedef std::pair<first_t, second_t> R;


    std::set<R> res;

    for (; first != last; ++first) res.insert(f(*first));
    return res;
}


void foo()
{
    std::map<int, int> m;

    std::set<std::pair<int, int>> s =
        makeSet(m.begin(), m.end(),
            [](const auto &x)
            {
                return std::make_pair(x.second, x.first);
            });

}

但问题是，一旦通过难以阅读就达到了行尾，就会打破长词。例如，对于下面的字符串：

public static String printDocument(String textToPrint,PrintService mPrinter, PrintService defaultPrintService) { String returnText = ""; try{ DocPrintJob job = defaultPrintService.createPrintJob(); InputStream is = new ByteArrayInputStream(textToPrint.getBytes()); Doc doc = new SimpleDoc(is, DocFlavor.INPUT_STREAM.AUTOSENSE, null); PrintJobWatcher pjDone = new PrintJobWatcher(job); job.print(doc, null); pjDone.waitForDone(); is.close(); returnText = "Printed successfully!"; }catch (Exception e){ returnText="Failed to print because of: "+e.getMessage(); } return returnText; }

它打印出来像这样：

textToPrint="Peter Parker Picked A Pack Of Pepper"

如果它溢出页面宽度，我希望它只是将单词打印到下一行：

Peter Parker Picked A Pa ck Of Pepper

我该怎么做？

Java PrintService打破超出页面宽度的单词

0 个答案: