Mercurial > octave-libgccjit
view libinterp/corefcn/ls-mat-ascii.cc @ 18961:52e01aa1fe8b
Overhaul FLTK pan, rotate, zoom
* graphics.in.h: add axes properties pan, rotate3d, mouse_wheel_zoom
and custom set_pan which disables rotate3d.
* graphics.cc: add custom set_rotate3d and link with pan property.
Disable rotate3d for 2D plots.
* __init_fltk__.cc: replace gui_mode and mouse_wheel_zoom with axes
properties pan, rotate3d and mouse_wheel_zoom. Disable pan for legends,
move them instead.
* __add_default_menu__.m: Add new menu entries for new pan and zoom modes.
* findall.m: Update test for added uimenus.
Each axes now has its own properties for interactive GUI control of pan,
rotate3d and mouse_wheel_zoom. Now it's possible to have several figures
and set pan for the 2D plot in figure x and rotate3d for the 3D plot in
figure y. There are two new pan modes: "Pan x only" and "Pan y only".
The toolbar buttons "P" and "R" set pan and rotate3d for the last clicked axes
object or the object below the center of the canvas if none was clicked yet.
The legend can now be moved with the mouse.
author | Andreas Weber <andy.weber.aw@gmail.com> |
---|---|
date | Sun, 27 Jul 2014 22:31:14 +0200 |
parents | 175b392e91fe |
children |
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/* Copyright (C) 1996-2013 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <cfloat> #include <cstring> #include <cctype> #include <fstream> #include <iomanip> #include <iostream> #include <sstream> #include <string> #include "byte-swap.h" #include "data-conv.h" #include "file-ops.h" #include "glob-match.h" #include "lo-mappers.h" #include "mach-info.h" #include "oct-env.h" #include "oct-time.h" #include "quit.h" #include "str-vec.h" #include "Cell.h" #include "defun.h" #include "error.h" #include "gripes.h" #include "lex.h" #include "load-save.h" #include "ls-ascii-helper.h" #include "ls-mat-ascii.h" #include "oct-obj.h" #include "oct-map.h" #include "ov-cell.h" #include "pager.h" #include "pt-exp.h" #include "sysdep.h" #include "unwind-prot.h" #include "utils.h" #include "variables.h" #include "version.h" #include "dMatrix.h" static std::string get_mat_data_input_line (std::istream& is) { std::string retval; bool have_data = false; do { retval = ""; char c; while (is.get (c)) { if (c == '\n' || c == '\r') { is.putback (c); skip_preceeding_newline (is); break; } if (c == '%' || c == '#') { skip_until_newline (is, false); break; } if (! is.eof ()) { if (! have_data && c != ' ' && c != '\t') have_data = true; retval += c; } } } while (! (have_data || is.eof ())); return retval; } static void get_lines_and_columns (std::istream& is, octave_idx_type& nr, octave_idx_type& nc, const std::string& filename = std::string (), bool quiet = false, bool check_numeric = false) { std::streampos pos = is.tellg (); int file_line_number = 0; nr = 0; nc = 0; while (is && ! error_state) { octave_quit (); std::string buf = get_mat_data_input_line (is); file_line_number++; size_t beg = buf.find_first_not_of (", \t"); // If we see a CR as the last character in the buffer, we had a // CRLF pair as the line separator. Any other CR in the text // will not be considered as whitespace. if (beg != std::string::npos && buf[beg] == '\r' && beg == buf.length () - 1) { // We had a blank line ending with a CRLF. Handle it the // same as an empty line. beg = std::string::npos; } octave_idx_type tmp_nc = 0; while (beg != std::string::npos) { tmp_nc++; size_t end = buf.find_first_of (", \t", beg); if (end != std::string::npos) { if (check_numeric) { std::istringstream tmp_stream (buf.substr (beg, end-beg)); octave_read_double (tmp_stream); if (tmp_stream.fail ()) { if (! quiet) error ("load: %s: non-numeric data found near line %d", filename.c_str (), file_line_number); nr = 0; nc = 0; goto done; } } beg = buf.find_first_not_of (", \t", end); if (beg == std::string::npos || (buf[beg] == '\r' && beg == buf.length () - 1)) { // We had a line with trailing spaces and // ending with a CRLF, so this should look like EOL, // not a new colum. break; } } else break; } if (tmp_nc > 0) { if (nc == 0) { nc = tmp_nc; nr++; } else if (nc == tmp_nc) nr++; else { if (! quiet) error ("load: %s: inconsistent number of columns near line %d", filename.c_str (), file_line_number); nr = 0; nc = 0; goto done; } } } if (! quiet && (nr == 0 || nc == 0)) error ("load: file '%s' seems to be empty!", filename.c_str ()); done: is.clear (); is.seekg (pos); } // Extract a matrix from a file of numbers only. // // Comments are not allowed. The file should only have numeric values. // // Reads the file twice. Once to find the number of rows and columns, // and once to extract the matrix. // // FILENAME is used for error messages. // // This format provides no way to tag the data as global. std::string read_mat_ascii_data (std::istream& is, const std::string& filename, octave_value& tc) { std::string retval; std::string varname; size_t pos = filename.rfind ('/'); if (pos != std::string::npos) varname = filename.substr (pos+1); else varname = filename; pos = varname.rfind ('.'); if (pos != std::string::npos) varname = varname.substr (0, pos); size_t len = varname.length (); for (size_t i = 0; i < len; i++) { char c = varname[i]; if (! (isalnum (c) || c == '_')) varname[i] = '_'; } if (is_keyword (varname) || ! isalpha (varname[0])) varname.insert (0, "X"); if (valid_identifier (varname)) { octave_idx_type nr = 0; octave_idx_type nc = 0; int total_count = 0; get_lines_and_columns (is, nr, nc, filename); octave_quit (); if (! error_state && nr > 0 && nc > 0) { Matrix tmp (nr, nc); if (nr < 1 || nc < 1) is.clear (std::ios::badbit); else { double d; for (octave_idx_type i = 0; i < nr; i++) { std::string buf = get_mat_data_input_line (is); std::istringstream tmp_stream (buf); for (octave_idx_type j = 0; j < nc; j++) { octave_quit (); d = octave_read_value<double> (tmp_stream); if (tmp_stream || tmp_stream.eof ()) { tmp.elem (i, j) = d; total_count++; // Skip whitespace and commas. char c; while (1) { tmp_stream >> c; if (! tmp_stream) break; if (! (c == ' ' || c == '\t' || c == ',')) { tmp_stream.putback (c); break; } } if (tmp_stream.eof ()) break; } else { error ("load: failed to read matrix from file '%s'", filename.c_str ()); return retval; } } } } if (is || is.eof ()) { // FIXME: not sure this is best, but it works. if (is.eof ()) is.clear (); octave_idx_type expected = nr * nc; if (expected == total_count) { tc = tmp; retval = varname; } else error ("load: expected %d elements, found %d", expected, total_count); } else error ("load: failed to read matrix from file '%s'", filename.c_str ()); } else error ("load: unable to extract matrix size from file '%s'", filename.c_str ()); } else error ("load: unable to convert filename '%s' to valid identifier", filename.c_str ()); return retval; } bool save_mat_ascii_data (std::ostream& os, const octave_value& val, int precision, bool tabs) { bool success = true; if (val.is_complex_type ()) warning ("save: omitting imaginary part for ASCII file"); Matrix m = val.matrix_value (true); if (error_state) { success = false; error_state = 0; } else { long old_precision = os.precision (); os.precision (precision); std::ios::fmtflags oflags = os.flags (static_cast<std::ios::fmtflags> (std::ios::scientific)); if (tabs) { for (octave_idx_type i = 0; i < m.rows (); i++) { for (octave_idx_type j = 0; j < m.cols (); j++) { // Omit leading tabs. if (j != 0) os << '\t'; octave_write_double (os, m (i, j)); } os << "\n"; } } else os << m; os.flags (oflags); os.precision (old_precision); } return (os && success); } bool looks_like_mat_ascii_file (std::istream& is, const std::string& filename) { bool retval = false; octave_idx_type nr = 0; octave_idx_type nc = 0; get_lines_and_columns (is, nr, nc, filename, true, true); retval = (nr != 0 && nc != 0); return retval; }