Merge "adb: win32: LinePrinter Unicode support"

// Stuff from ninja's util.h that's needed below.

#include <vector>

using namespace std;

// This does not account for multiple UTF-8 bytes corresponding to a single Unicode code point, or

// multiple code points corresponding to a single grapheme cluster (user-perceived character).

string ElideMiddle(const string& str, size_t width) {

  const int kMargin = 3;  // Space for "...".

  string result = str;

    CONSOLE_SCREEN_BUFFER_INFO csbi;

    GetConsoleScreenBufferInfo(console_, &csbi);

    // TODO: std::wstring to_print_wide; if (!android::base::UTF8ToWide(to_print, &to_print_wide)...

    // TODO: wstring ElideMiddle.

    to_print = ElideMiddle(to_print, static_cast<size_t>(csbi.dwSize.X));

    std::wstring to_print_wide;

    // ElideMiddle may create invalid UTF-8, so ignore conversion errors.

    (void)android::base::UTF8ToWide(to_print, &to_print_wide);

    // We don't want to have the cursor spamming back and forth, so instead of

    // printf use WriteConsoleOutput which updates the contents of the buffer,

    // but doesn't move the cursor position.

    };

    vector<CHAR_INFO> char_data(csbi.dwSize.X);

    for (size_t i = 0; i < static_cast<size_t>(csbi.dwSize.X); ++i) {

      // TODO: UnicodeChar instead of AsciiChar, to_print_wide[i].

      char_data[i].Char.AsciiChar = i < to_print.size() ? to_print[i] : ' ';

        char_data[i].Char.UnicodeChar = i < to_print_wide.size() ? to_print_wide[i] : L' ';

        char_data[i].Attributes = csbi.wAttributes;

    }

    // TODO: WriteConsoleOutputW.

    WriteConsoleOutput(console_, &char_data[0], buf_size, zero_zero, &target);

    WriteConsoleOutputW(console_, &char_data[0], buf_size, zero_zero, &target);

#else

    // Limit output to width of the terminal if provided so we don't cause

    // line-wrapping.