void Edit::on_enter()
{
#ifdef __windows__
if(Keyboard::is_pressed(0x0D))
#endif
#ifdef __gnu_linux__
if(Keyboard::is_pressed(0xff0d))
#endif
{
if(is_multilined()) // a multilined editor
{
if(get_text().length() >= get_character_limit()) // if text length has reached character_limit
{
// double the height of the edit
set_height(get_height() * 2); // GOOD!
// add to the character_limit (new character_limit)
set_character_limit(get_character_limit() + get_character_limit()); // ???
// newline???
set_text(get_text() + "\n");
// reset cursor x position
set_cursor_x(0);
// set cursor y position
int char_height = 12;
set_cursor_y(get_cursor_y() + char_height);
}
}
}
}
/////////////
// TEXT-RELATED
/////////////
void Edit::set_text(const std::string& text)
{
std::string string0 (text);
if(string0.length() > get_character_limit())
{
string0 = string0.erase(string0.length() - string0.length() + get_character_limit());
}
get_label()->set_string(string0);
int char_width = 10; // estimated glyph width
set_cursor_x(cursor_x + (get_width() / char_width)); // set cursor at end of string
}
void Edit::on_backspace()
{
#ifdef __windows__
if(Keyboard::is_pressed(0x08))
#endif
#ifdef __gnu_linux__
if(Keyboard::is_pressed(0xff08))
#endif
{
// erase last character in string
if(get_text().length()!=0) set_text(get_text().erase(get_text().length() - 1));
// move cursor back
int char_width = 10;
set_cursor_x(get_cursor_x() - char_width);
}
}
/**
* Prints a character to the screen, is used
* by kprintf and kputs
*
* @param c Character to print
**/
void kputch(unsigned char c)
{
unsigned short *where;
unsigned att = get_attribute() << 8;
if(c == 0x08)
{
/// ! SELBER SCHREIBEN !
if(get_cursor_x() != 0) set_cursor_x(get_cursor_x() - 1);
}
//
else if(c == 0x09)
{
int newx;
/// ! SELBER SCHREIBEN !
newx = (get_cursor_x() + 8) & ~(8 - 1);
set_cursor_x(newx);
}
// Carriage return? Set the cursor to the beginning of the current line
else if(c == '\r')
{
/// ! SELBER SCHREIBEN !
set_cursor_x(0);
}
// Linefeed? Set the cursor to the next line
else if(c == '\n')
{
/// ! SELBER SCHREIBEN !
set_cursor_x(0);
set_cursor_y(get_cursor_y() + 1);
}
else if(c >= ' ')
{
/// ! SELBER SCHREIBEN !
//FIXME: get_textmemptr() doesn't work here (whyever...)
where = (unsigned short*)0xB8000 + (get_cursor_y() * 80 + get_cursor_x());
*where = c | att;
set_cursor_x(get_cursor_x() + 1);
}
/// ! SELBER SCHREIBEN !
// More than 80 lines? Scroll the screen
if(get_cursor_x() >= 80)
{
set_cursor_x(0);
set_cursor_y(get_cursor_y() + 1);
}
/// ! SELBER SCHREIBEN !
// Scroll the screen and move the cursor
scroll_screen();
move_cursor();
}
void Edit::set_cursor_position(double x, double y)
{
set_cursor_x(x);
set_cursor_y(y);
}
