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043298544c
Rename frontStrip to ltrim Add new trim function. modify source for this change. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4801 a592a061-630c-0410-9148-cb99ea01b6c8
495 lines
10 KiB
C
495 lines
10 KiB
C
/**
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* \file xforms_helpers.C
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* Copyright 2000-2002 The LyX Team.
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* See the file COPYING.
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*
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* \author Angus Leeming, a.leeming@ic.ac.uk
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*/
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#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "xforms_helpers.h"
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#include "lyxlex.h"
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#include "gettext.h"
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#include "lyxlength.h"
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#include "lyxgluelength.h"
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#include "support/LAssert.h"
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#include "support/FileInfo.h"
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#include "support/filetools.h"
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#include "support/lstrings.h" // frontStrip, strip
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#include <algorithm>
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#include <fstream>
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#include <vector>
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#include FORMS_H_LOCATION
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using std::ofstream;
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using std::pair;
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using std::vector;
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// Set an FL_OBJECT to activated or deactivated
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void setEnabled(FL_OBJECT * ob, bool enable)
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{
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if (enable) {
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fl_activate_object(ob);
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fl_set_object_lcol(ob, FL_BLACK);
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} else {
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fl_deactivate_object(ob);
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fl_set_object_lcol(ob, FL_INACTIVE);
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}
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}
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// Given an fl_choice or an fl_browser, create a vector of its entries
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vector<string> const getVector(FL_OBJECT * ob)
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{
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vector <string> vec;
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switch (ob->objclass) {
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case FL_CHOICE:
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for(int i = 0; i < fl_get_choice_maxitems(ob); ++i) {
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string const text = fl_get_choice_item_text(ob, i+1);
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vec.push_back(trim(text));
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}
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break;
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case FL_BROWSER:
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for(int i = 0; i < fl_get_browser_maxline(ob); ++i) {
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string const text = fl_get_browser_line(ob, i+1);
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vec.push_back(trim(text));
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}
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break;
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default:
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lyx::Assert(0);
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}
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return vec;
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}
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///
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string const getString(FL_OBJECT * ob, int line)
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{
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char const * tmp = 0;
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switch (ob->objclass) {
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case FL_INPUT:
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lyx::Assert(line == -1);
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tmp = fl_get_input(ob);
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break;
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case FL_BROWSER:
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if (line == -1)
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line = fl_get_browser(ob);
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if (line >= 1 && line <= fl_get_browser_maxline(ob))
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tmp = fl_get_browser_line(ob, line);
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break;
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case FL_CHOICE:
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if (line == -1)
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line = fl_get_choice(ob);
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if (line >= 1 && line <= fl_get_choice_maxitems(ob))
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tmp = fl_get_choice_item_text(ob, line);
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break;
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default:
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lyx::Assert(0);
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}
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return (tmp) ? trim(tmp) : string();
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}
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string getLengthFromWidgets(FL_OBJECT * input, FL_OBJECT * choice)
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{
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// Paranoia check
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lyx::Assert(input && input->objclass == FL_INPUT &&
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choice && choice->objclass == FL_CHOICE);
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string const length = trim(fl_get_input(input));
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if (length.empty())
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return string();
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//don't return unit-from-choice if the input(field) contains a unit
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if (isValidGlueLength(length))
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return length;
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string unit = trim(fl_get_choice_text(choice));
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unit = subst(unit, "%%", "%");
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return length + unit;
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}
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void updateWidgetsFromLengthString(FL_OBJECT * input, FL_OBJECT * choice,
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string const & str,
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string const & default_unit)
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{
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// use input field only for gluelengths
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if (!isValidLength(str) && !isStrDbl(str)) {
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fl_set_input(input, str.c_str());
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// we assume that "default_unit" is in the choice as "we"
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// have control over that!
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// No need to check for it's precence in the choice, therefore.
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fl_set_choice_text(choice, default_unit.c_str());
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} else {
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updateWidgetsFromLength(input, choice,
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LyXLength(str), default_unit);
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}
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}
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void updateWidgetsFromLength(FL_OBJECT * input, FL_OBJECT * choice,
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LyXLength const & len,
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string const & default_unit)
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{
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// Paranoia check
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lyx::Assert(input && input->objclass == FL_INPUT &&
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choice && choice->objclass == FL_CHOICE);
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if (len.zero()) {
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fl_set_input(input, "");
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fl_set_choice_text(choice, default_unit.c_str());
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} else {
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ostringstream buffer;
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buffer << len.value();
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fl_set_input(input, buffer.str().c_str());
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// Set the choice to the desired unit, if present in the choice.
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// Else set the choice to the default unit.
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string const unit = subst(stringFromUnit(len.unit()),"%","%%");
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vector<string> const vec = getVector(choice);
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vector<string>::const_iterator it =
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std::find(vec.begin(), vec.end(), unit);
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if (it != vec.end()) {
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fl_set_choice_text(choice, unit.c_str());
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} else {
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fl_set_choice_text(choice, default_unit.c_str());
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}
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}
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}
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// Take a string and add breaks so that it fits into a desired label width, w
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string formatted(string const & sin, int w, int size, int style)
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{
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string sout;
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if (sin.empty()) return sout;
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string::size_type curpos = 0;
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string line;
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for(;;) {
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string::size_type const nxtpos1 = sin.find(' ', curpos);
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string::size_type const nxtpos2 = sin.find('\n', curpos);
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string::size_type const nxtpos = std::min(nxtpos1, nxtpos1);
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string const word = nxtpos == string::npos ?
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sin.substr(curpos) : sin.substr(curpos, nxtpos-curpos);
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bool const newline = (nxtpos2 != string::npos &&
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nxtpos2 < nxtpos1);
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string const line_plus_word =
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line.empty() ? word : line + ' ' + word;
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int const length =
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fl_get_string_width(style, size,
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line_plus_word.c_str(),
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int(line_plus_word.length()));
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if (length >= w) {
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sout += line + '\n';
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if (newline) {
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sout += word + '\n';
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line.erase();
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} else {
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line = word;
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}
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} else if (newline) {
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sout += line_plus_word + '\n';
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line.erase();
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} else {
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if (!line.empty())
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line += ' ';
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line += word;
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}
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if (nxtpos == string::npos) {
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if (!line.empty())
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sout += line;
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break;
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}
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curpos = nxtpos+1;
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}
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return sout;
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}
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void setCursorColor(int color)
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{
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fl_set_cursor_color(FL_DEFAULT_CURSOR, color, FL_WHITE);
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fl_set_cursor_color(XC_xterm, color, FL_WHITE);
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fl_set_cursor_color(XC_watch, color, FL_WHITE);
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fl_set_cursor_color(XC_sb_right_arrow, color, FL_WHITE);
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}
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namespace {
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// sorted by hand to prevent LyXLex from complaining on read().
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keyword_item xformTags[] = {
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{ "\\gui_background", FL_COL1 },
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{ "\\gui_buttonbottom", FL_BOTTOM_BCOL },
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{ "\\gui_buttonleft", FL_LEFT_BCOL },
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{ "\\gui_buttonright", FL_RIGHT_BCOL },
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{ "\\gui_buttontop", FL_TOP_BCOL },
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{ "\\gui_inactive", FL_INACTIVE },
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{ "\\gui_pointer", FL_FREE_COL16 },
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{ "\\gui_push_button", FL_YELLOW },
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{ "\\gui_selected", FL_MCOL },
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{ "\\gui_text", FL_BLACK }
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};
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const int xformCount = sizeof(xformTags) / sizeof(keyword_item);
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} // namespace anon
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bool XformsColor::read(string const & filename)
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{
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LyXLex lexrc(xformTags, xformCount);
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if (!lexrc.setFile(filename))
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return false;
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while (lexrc.isOK()) {
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int const le = lexrc.lex();
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switch (le) {
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case LyXLex::LEX_UNDEF:
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lexrc.printError("Unknown tag `$$Token'");
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continue;
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case LyXLex::LEX_FEOF:
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continue;
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default: break;
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}
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string const tag = lexrc.getString();
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RGBColor col;
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if (!lexrc.next()) break;
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col.r = lexrc.getInteger();
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if (!lexrc.next()) break;
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col.g = lexrc.getInteger();
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if (!lexrc.next()) break;
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col.b = lexrc.getInteger();
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fl_mapcolor(le, col.r, col.g, col.b);
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if (tag == "\\gui_pointer") {
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setCursorColor(FL_FREE_COL16);
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}
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}
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return true;
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}
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bool XformsColor::write(string const & filename)
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{
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ofstream os(filename.c_str());
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if (!os)
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return false;
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os << "### This file is part of\n"
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<< "### ========================================================\n"
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<< "### LyX, The Document Processor\n"
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<< "###\n"
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<< "### Copyright 1995 Matthias Ettrich\n"
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<< "### Copyright 1995-2002 The LyX Team.\n"
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<< "###\n"
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<< "### ========================================================\n"
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<< "\n"
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<< "# This file is written by LyX, if you want to make your own\n"
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<< "# modifications you should do them from inside LyX and save\n"
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<< "\n";
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for (int i = 0; i < xformCount; ++i) {
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string const tag = xformTags[i].tag;
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int const colorID = xformTags[i].code;
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RGBColor color;
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fl_getmcolor(colorID, &color.r, &color.g, &color.b);
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os << tag << " "
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<< color.r << " " << color.g << " " << color.b << "\n";
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}
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return true;
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}
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string RWInfo::error_message;
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bool RWInfo::WriteableDir(string const & name)
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{
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error_message.erase();
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if (!AbsolutePath(name)) {
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error_message = _("The absolute path is required.");
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return false;
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}
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FileInfo const tp(name);
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if (!tp.isOK() || !tp.isDir()) {
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error_message = _("Directory does not exist.");
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return false;
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}
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if (!tp.writable()) {
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error_message = _("Cannot write to this directory.");
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return false;
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}
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return true;
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}
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bool RWInfo::ReadableDir(string const & name)
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{
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error_message.erase();
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if (!AbsolutePath(name)) {
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error_message = _("The absolute path is required.");
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return false;
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}
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FileInfo const tp(name);
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if (!tp.isOK() || !tp.isDir()) {
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error_message = _("Directory does not exist.");
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return false;
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}
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if (!tp.readable()) {
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error_message = _("Cannot read this directory.");
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return false;
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}
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return true;
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}
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bool RWInfo::WriteableFile(string const & name)
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{
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// A writeable file is either:
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// * An existing file to which we have write access, or
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// * A file that doesn't yet exist but that would exist in a writeable
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// directory.
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error_message.erase();
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if (name.empty()) {
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error_message = _("No file input.");
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return false;
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}
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string const dir = OnlyPath(name);
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if (!AbsolutePath(dir)) {
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error_message = _("The absolute path is required.");
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return false;
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}
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FileInfo d(name);
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if (!d.isOK() || !d.isDir()) {
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d.newFile(dir);
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}
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if (!d.isOK() || !d.isDir()) {
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error_message = _("Directory does not exist.");
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return false;
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}
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if (!d.writable()) {
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error_message = _("Cannot write to this directory.");
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return false;
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}
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FileInfo f(name);
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if (dir == name || (f.isOK() && f.isDir())) {
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error_message = _("A file is required, not a directory.");
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return false;
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}
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if (f.isOK() && f.exist() && !f.writable()) {
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error_message = _("Cannot write to this file.");
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return false;
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}
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return true;
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}
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bool RWInfo::ReadableFile(string const & name)
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{
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error_message.erase();
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if (name.empty()) {
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error_message = _("No file input.");
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return false;
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}
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string const dir = OnlyPath(name);
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if (!AbsolutePath(dir)) {
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error_message = _("The absolute path is required.");
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return false;
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}
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FileInfo d(name);
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if (!d.isOK() && !d.isDir()) {
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d.newFile(dir);
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}
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if (!d.isOK() || !d.isDir()) {
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error_message = _("Directory does not exist.");
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return false;
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}
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if (!d.readable()) {
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error_message = _("Cannot read from this directory.");
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return false;
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}
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FileInfo f(name);
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if (dir == name || (f.isOK() && f.isDir())) {
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error_message = _("A file is required, not a directory.");
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return false;
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}
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if (!f.exist()) {
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error_message = _("File does not exist.");
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return false;
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}
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if (!f.readable()) {
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error_message = _("Cannot read from this file.");
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return false;
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}
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return true;
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}
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