From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Mon, 16 Mar 2020 18:49:26 +0900 Subject: Fresh start --- jni/ruby/ext/-test-/win32/console/attribute.c | 56 +++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 jni/ruby/ext/-test-/win32/console/attribute.c (limited to 'jni/ruby/ext/-test-/win32/console/attribute.c') diff --git a/jni/ruby/ext/-test-/win32/console/attribute.c b/jni/ruby/ext/-test-/win32/console/attribute.c new file mode 100644 index 0000000..a2c07fc --- /dev/null +++ b/jni/ruby/ext/-test-/win32/console/attribute.c @@ -0,0 +1,56 @@ +#include + +static VALUE rb_cConsoleScreenBufferInfo; + +static VALUE +console_info(VALUE io) +{ + int fd = NUM2INT(rb_funcallv(io, rb_intern("fileno"), 0, 0)); + HANDLE h = (HANDLE)rb_w32_get_osfhandle(fd); + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if (h == (HANDLE)-1) rb_raise(rb_eIOError, "invalid io"); + if (!GetConsoleScreenBufferInfo(h, &csbi)) + rb_syserr_fail(rb_w32_map_errno(GetLastError()), "not console"); + return rb_struct_new(rb_cConsoleScreenBufferInfo, + INT2FIX(csbi.dwSize.X), INT2FIX(csbi.dwSize.Y), + INT2FIX(csbi.dwCursorPosition.X), INT2FIX(csbi.dwCursorPosition.Y), + INT2FIX(csbi.wAttributes)); +} + +static VALUE +console_set_attribute(VALUE io, VALUE attr) +{ + int fd = NUM2INT(rb_funcallv(io, rb_intern("fileno"), 0, 0)); + HANDLE h = (HANDLE)rb_w32_get_osfhandle(fd); + + if (h == (HANDLE)-1) rb_raise(rb_eIOError, "invalid io"); + SetConsoleTextAttribute(h, (WORD)NUM2INT(attr)); + return Qnil; +} + +#define FOREGROUND_MASK (FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY) +#define BACKGROUND_MASK (BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY) + +void +Init_attribute(VALUE m) +{ + rb_cConsoleScreenBufferInfo = rb_struct_define_under(m, "ConsoleScreenBufferInfo", + "size_x", "size_y", + "cur_x", "cur_y", + "attr", NULL); + rb_define_method(rb_cIO, "console_info", console_info, 0); + rb_define_method(rb_cIO, "console_attribute", console_set_attribute, 1); + + rb_define_const(m, "FOREGROUND_MASK", INT2FIX(FOREGROUND_MASK)); + rb_define_const(m, "FOREGROUND_BLUE", INT2FIX(FOREGROUND_BLUE)); + rb_define_const(m, "FOREGROUND_GREEN", INT2FIX(FOREGROUND_GREEN)); + rb_define_const(m, "FOREGROUND_RED", INT2FIX(FOREGROUND_RED)); + rb_define_const(m, "FOREGROUND_INTENSITY", INT2FIX(FOREGROUND_INTENSITY)); + + rb_define_const(m, "BACKGROUND_MASK", INT2FIX(BACKGROUND_MASK)); + rb_define_const(m, "BACKGROUND_BLUE", INT2FIX(BACKGROUND_BLUE)); + rb_define_const(m, "BACKGROUND_GREEN", INT2FIX(BACKGROUND_GREEN)); + rb_define_const(m, "BACKGROUND_RED", INT2FIX(BACKGROUND_RED)); + rb_define_const(m, "BACKGROUND_INTENSITY", INT2FIX(BACKGROUND_INTENSITY)); +} -- cgit v1.2.3