diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Fl_Terminal.cxx | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/Fl_Terminal.cxx b/src/Fl_Terminal.cxx index b1ec50a3f..bd3f3505a 100644 --- a/src/Fl_Terminal.cxx +++ b/src/Fl_Terminal.cxx @@ -36,6 +36,7 @@ #include <FL/fl_utf8.h> // fl_utf8len1 #include <FL/fl_draw.H> #include <FL/fl_string_functions.h> +#include "Fl_String.H" ///////////////////////////////// ////// Static Functions ///////// @@ -3768,6 +3769,53 @@ int Fl_Terminal::handle(int e) { } /** + Return a string copy of all lines in the terminal (including history). + The returned string is allocated with strdup(3), which the caller must free. + + If \p 'lines_below_cursor' is false (default), lines below the cursor on down + to the bottom of the display are ignored, and not included in the returned string. + + If \p 'lines_below_cursor' is true, then all lines in the display are returned + including any below the cursor, even if all are blank. + + Example use: + \par + \code + Fl_Terminal *tty = new Fl_Terminal(..); + : + const char *s = tty->text(); // get a copy of the terminal's contents + printf("Terminal's contents is:\n%s\n", s); + free((void*)s); // free() the copy when done! + \endcode + + \return A string allocated with strdup(3) which must be free'd, text is UTF-8. +*/ +const char* Fl_Terminal::text(bool lines_below_cursor) const { + Fl_String lines; // lines of text we'll return + // See how many display rows we need to include + int disprows = lines_below_cursor ? disp_rows() - 1 // all display lines + : cursor_row(); // only lines up to cursor + // Start at top of 'in use' history, and walk to end of display + int srow = hist_use_srow(); // start row of text to return + int erow = srow + hist_use() + disprows; // end row of text to return + for (int row=srow; row<=erow; row++) { // walk rows + const Utf8Char *u8c = u8c_ring_row(row); // start of row + int trim = 0; + for (int col=0; col<ring_cols(); col++,u8c++) { // walk cols in row + const char *s = u8c->text_utf8(); // first byte of char + for (int i=0; i<u8c->length(); i++) lines += *s++; // append all bytes in multibyte char + // Count any trailing whitespace to trim + if (u8c->length()==1 && *s==' ') trim++; // trailing whitespace? trim + else trim = 0; // non-whitespace? don't trim + } + // trim trailing whitespace from each line, if any + if (trim) lines.resize(lines.size() - trim); + lines += "\n"; + } + return strdup(lines.c_str()); +} + +/** Get the redraw style. This determines when the terminal redraws itself while text |