diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Fl_Text_Display.cxx | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/Fl_Text_Display.cxx b/src/Fl_Text_Display.cxx index a9cfcdfaf..731d7a94e 100644 --- a/src/Fl_Text_Display.cxx +++ b/src/Fl_Text_Display.cxx @@ -4146,18 +4146,25 @@ int Fl_Text_Display::handle(int event) { /* Convert an x pixel position into a column number. + The width of a column is calculated as the average width of a few + representative characters, giving a good estimate for proportional fonts. + This method does not take the possition of the scroll bars into account. + \param[in] x offset to the left edge of the text in FLTK units. + \return approximation to the corresponding text column + \see col_to_x() */ -double Fl_Text_Display::x_to_col(double y) const +double Fl_Text_Display::x_to_col(double x) const { if (!mColumnScale) { mColumnScale = string_width("Mitg", 4, 'A') / 4.0; } - return (y/mColumnScale)+0.5; + return (x/mColumnScale)+0.5; } /** Convert a column number into an x pixel position. + \see x_to_col() */ double Fl_Text_Display::col_to_x(double col) const { |