-// -*- C++ -*-
-/* This file is part of
- * ======================================================
- *
- * LyX, The Document Processor
- *
- * Copyright 1995 Matthias Ettrich
- * Copyright 1995-2000 The LyX Team.
+/**
+ * \file vspace.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * ====================================================== */
+ * \author Matthias Ettrich
+ *
+ * Full author contact details are available in file CREDITS.
+ */
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation "vspace.h"
-#endif
-
-#include "lyx_main.h"
-#include "buffer.h"
#include "vspace.h"
-#include "lyxrc.h"
-#include "lyxtext.h"
+#include "buffer.h"
+#include "bufferparams.h"
#include "BufferView.h"
-#include "support/lstrings.h"
+#include "lengthcommon.h"
+#include "lyxtext.h"
+#include "support/convert.h"
+#include "support/lstrings.h"
-/* length units
- */
+using lyx::support::compare;
+using lyx::support::isStrDbl;
+using lyx::support::ltrim;
+using lyx::support::prefixIs;
+using lyx::support::rtrim;
-static const int num_units = LyXLength::UNIT_NONE;
+using std::string;
-// I am not sure if "mu" should be possible to select (Lgb)
-static char const * unit_name[num_units] = { "sp", "pt", "bp", "dd",
- "mm", "pc", "cc", "cm",
- "in", "ex", "em", "mu" };
+namespace {
-LyXLength::UNIT unitFromString (string const & data)
-{
- int i = 0;
- while ((i < num_units) && (data != unit_name[i])) ++i;
- return static_cast<LyXLength::UNIT>(i);
-}
-
-/* The following static items form a simple scanner for
- * length strings, used by isValid[Glue]Length. See comments there.
- */
-static float number[4] = { 0, 0, 0, 0 };
-static LyXLength::UNIT unit[4] = { LyXLength::UNIT_NONE,
- LyXLength::UNIT_NONE,
- LyXLength::UNIT_NONE,
- LyXLength::UNIT_NONE };
-//static int number_index, unit_index;
-int number_index, unit_index;
+/// used to return numeric values in parsing vspace
+double number[4] = { 0, 0, 0, 0 };
+/// used to return unit types in parsing vspace
+LyXLength::UNIT unit[4] = { LyXLength::UNIT_NONE,
+ LyXLength::UNIT_NONE,
+ LyXLength::UNIT_NONE,
+ LyXLength::UNIT_NONE };
+/// the current position in the number array
+int number_index;
+/// the current position in the unit array
+int unit_index;
-static inline
-void lyx_advance (string & data, unsigned int n)
+/// skip n characters of input
+inline
+void lyx_advance(string & data, string::size_type n)
{
data.erase(0, n);
}
-static inline
-bool isEndOfData (string const & data)
+/// return true when the input is at the end
+inline
+bool isEndOfData(string const & data)
{
- return frontStrip (data).empty();
+ return ltrim(data).empty();
}
-static
-char nextToken (string & data)
+/**
+ * nextToken - return the next token in the input
+ * @param data input string
+ * @return a char representing the type of token returned
+ *
+ * The possible return values are :
+ * + stretch indicator for glue length
+ * - shrink indicator for glue length
+ * n a numeric value (stored in number array)
+ * u a unit type (stored in unit array)
+ * E parse error
+ */
+char nextToken(string & data)
{
- data = frontStrip(data);
+ data = ltrim(data);
+
if (data.empty())
return '\0';
- else if (data[0] == '+') {
- lyx_advance (data, 1);
+
+ if (data[0] == '+') {
+ lyx_advance(data, 1);
return '+';
}
- else if (prefixIs(data, "plus")) {
- lyx_advance (data, 4);
+
+ if (prefixIs(data, "plus")) {
+ lyx_advance(data, 4);
return '+';
}
- else if (data[0] == '-') {
- lyx_advance (data, 1);
+
+ if (data[0] == '-') {
+ lyx_advance(data, 1);
return '-';
}
- else if (prefixIs(data, "minus")) {
- lyx_advance (data, 5);
+
+ if (prefixIs(data, "minus")) {
+ lyx_advance(data, 5);
return '-';
}
- else {
- string::size_type i;
-
- // I really mean assignment ("=") below, not equality!
- if ((i = data.find_last_of("0123456789.")) != string::npos) {
- if (number_index > 3) return 'E'; // Error
- string buffer = data.substr(0, i + 1);
- if (sscanf (buffer.c_str(),
- "%f", &number[number_index]) == 1) {
- lyx_advance (data, i + 1);
- ++number_index;
- return 'n';
- } else
- return 'E'; // Error
- } else if ((i = data.find_last_of("abcdefghijklmnopqrstuvwxyz"))
- != string::npos) {
- if (unit_index > 3) return 'E'; // Error
- string buffer = data.substr(0, i + 1);
- unit[unit_index] = unitFromString (buffer);
- if (unit[unit_index] != LyXLength::UNIT_NONE) {
- lyx_advance (data, i + 1);
- ++unit_index;
- return 'u';
- } else
- return 'E'; // Error
+
+ string::size_type i = data.find_first_not_of("0123456789.");
+
+ if (i != 0) {
+ if (number_index > 3)
+ return 'E';
+
+ string buffer;
+
+ // we have found some number
+ if (i == string::npos) {
+ buffer = data;
+ i = data.size() + 1;
} else
- return 'E'; // Error
+ buffer = data.substr(0, i);
+
+ lyx_advance(data, i);
+
+ if (isStrDbl(buffer)) {
+ number[number_index] = convert<double>(buffer);
+ ++number_index;
+ return 'n';
+ }
+ return 'E';
}
+
+ i = data.find_first_not_of("abcdefghijklmnopqrstuvwxyz%");
+ if (i != 0) {
+ if (unit_index > 3)
+ return 'E';
+
+ string buffer;
+
+ // we have found some alphabetical string
+ if (i == string::npos) {
+ buffer = data;
+ i = data.size() + 1;
+ } else
+ buffer = data.substr(0, i);
+
+ // possibly we have "mmplus" string or similar
+ if (buffer.size() > 5 &&
+ (buffer.substr(2, 4) == string("plus") ||
+ buffer.substr(2, 5) == string("minus")))
+ {
+ lyx_advance(data, 2);
+ unit[unit_index] = unitFromString(buffer.substr(0, 2));
+ } else {
+ lyx_advance(data, i);
+ unit[unit_index] = unitFromString(buffer);
+ }
+
+ if (unit[unit_index] != LyXLength::UNIT_NONE) {
+ ++unit_index;
+ return 'u';
+ }
+ return 'E'; // Error
+ }
+ return 'E'; // Error
}
+/// latex representation of a vspace
struct LaTeXLength {
char const * pattern;
- int plus_val_index, minus_val_index,
- plus_uni_index, minus_uni_index;
+ int plus_val_index;
+ int minus_val_index;
+ int plus_uni_index;
+ int minus_uni_index;
};
-static
+/// the possible formats for a vspace string
LaTeXLength table[] = {
{ "nu", 0, 0, 0, 0 },
{ "nu+nu", 2, 0, 2, 0 },
};
-bool isValidGlueLength (string const & data, LyXGlueLength * result)
+} // namespace anon
+
+const char * stringFromUnit(int unit)
+{
+ if (unit < 0 || unit > num_units)
+ return 0;
+ return unit_name[unit];
+}
+
+
+bool isValidGlueLength(string const & data, LyXGlueLength * result)
{
// This parser is table-driven. First, it constructs a "pattern"
- // that describes the sequence of tokens in "data". For example,
+ // that describes the sequence of tokens in "data". For example,
// "n-nu" means: number, minus sign, number, unit. As we go along,
- // numbers and units are stored into static arrays. Then, "pattern"
- // is searched in the "table". If it is found, the associated
- // table entries tell us which number and unit should go where
- // in the LyXLength structure. Example: if "data" has the "pattern"
- // "nu+nu-nu", the associated table entries are "2, 3, 2, 3".
+ // numbers and units are stored into static arrays. Then, "pattern"
+ // is searched in the "table". If it is found, the associated
+ // table entries tell us which number and unit should go where
+ // in the LyXLength structure. Example: if "data" has the "pattern"
+ // "nu+nu-nu", the associated table entries are "2, 3, 2, 3".
// That means, "plus_val" is the second number that was seen
// in the input, "minus_val" is the third number, and "plus_uni"
// and "minus_uni" are the second and third units, respectively.
// ("val" and "uni" are always the first items seen in "data".)
- // This is the most elegant solution I could find -- a straight-
- // forward approach leads to very long, tedious code that would be
- // much harder to understand and maintain. (AS)
+ // This is the most elegant solution I could find -- a straight-
+ // forward approach leads to very long, tedious code that would be
+ // much harder to understand and maintain. (AS)
if (data.empty())
return true;
- string buffer = frontStrip(data);
+ string buffer = ltrim(data);
// To make isValidGlueLength recognize negative values as
// the first number this little hack is needed:
- short val_sign = 1; // positive as default
- switch(buffer[0]) {
+ int val_sign = 1; // positive as default
+ switch (buffer[0]) {
case '-':
lyx_advance(buffer, 1);
val_sign = -1;
break;
case '+':
lyx_advance(buffer, 1);
- // fall through
+ break;
default:
- // no action
break;
}
// end of hack
-
- int pattern_index = 0, table_index = 0;
- char pattern[20];
- number_index = unit_index = 1; // entries at index 0 are sentinels
+ int pattern_index = 0;
+ int table_index = 0;
+ char pattern[20];
+
+ number_index = 1;
+ unit_index = 1; // entries at index 0 are sentinels
// construct "pattern" from "data"
while (!isEndOfData (buffer)) {
table_index = 0;
while (compare(pattern, table[table_index].pattern)) {
++table_index;
- if (!*table[table_index].pattern) return false;
+ if (!*table[table_index].pattern)
+ return false;
}
-
+
// Get the values from the appropriate places. If an index
// is zero, the corresponding array value is zero or UNIT_NONE,
// so we needn't check this.
if (result) {
- result->val = number[1] * val_sign;
- result->uni = unit[1];
- result->plus_val = number[table[table_index].plus_val_index];
- result->minus_val = number[table[table_index].minus_val_index];
- result->plus_uni = unit [table[table_index].plus_uni_index];
- result->minus_uni = unit [table[table_index].minus_uni_index];
+ result->len_.value (number[1] * val_sign);
+ result->len_.unit (unit[1]);
+ result->plus_.value (number[table[table_index].plus_val_index]);
+ result->plus_.unit (unit [table[table_index].plus_uni_index]);
+ result->minus_.value(number[table[table_index].minus_val_index]);
+ result->minus_.unit (unit [table[table_index].minus_uni_index]);
}
return true;
}
bool isValidLength(string const & data, LyXLength * result)
{
- /// This is a trimmed down version of isValidGlueLength.
- /// The parser may seem overkill for lengths without
- /// glue, but since we already have it, using it is
- /// easier than writing something from scratch.
+ // This is a trimmed down version of isValidGlueLength.
+ // The parser may seem overkill for lengths without
+ // glue, but since we already have it, using it is
+ // easier than writing something from scratch.
+ if (data.empty())
+ return true;
- string buffer = data;
- int pattern_index = 0;
- char pattern[3];
+ string buffer = data;
+ int pattern_index = 0;
+ char pattern[3];
// To make isValidLength recognize negative values
// this little hack is needed:
- short val_sign = 1; // positive as default
- switch(buffer[0]) {
+ int val_sign = 1; // positive as default
+ switch (buffer[0]) {
case '-':
lyx_advance(buffer, 1);
val_sign = -1;
break;
}
// end of hack
-
+
number_index = unit_index = 1; // entries at index 0 are sentinels
// construct "pattern" from "data"
- while (!isEndOfData (buffer)) {
- if (pattern_index > 2) return false;
- pattern[pattern_index] = nextToken (buffer);
- if (pattern[pattern_index] == 'E') return false;
+ while (!isEndOfData(buffer)) {
+ if (pattern_index > 2)
+ return false;
+ pattern[pattern_index] = nextToken(buffer);
+ if (pattern[pattern_index] == 'E')
+ return false;
++pattern_index;
}
pattern[pattern_index] = '\0';
// only the most basic pattern is accepted here
- if (compare(pattern, "nu") != 0) return false;
-
- // It _was_ a correct length string.
+ if (compare(pattern, "nu") != 0) return false;
+
+ // It _was_ a correct length string.
// Store away the values we found.
if (result) {
- result->val = number[1] * val_sign;
- result->uni = unit[1];
+ result->val_ = number[1] * val_sign;
+ result->unit_ = unit[1];
}
return true;
}
-/// LyXLength class
+//
+// VSpace class
+//
-LyXLength::LyXLength(string const & data)
-{
- LyXLength tmp;
-
- if (!isValidLength (data, &tmp))
- return; // should raise an exception
- else {
- val = tmp.val;
- uni = tmp.uni;
- }
-}
+VSpace::VSpace()
+ : kind_(DEFSKIP), len_(), keep_(false)
+{}
-bool LyXLength::operator== (LyXLength const & other) const
-{
- return (val == other.val &&
- uni == other.uni);
-}
+VSpace::VSpace(vspace_kind k)
+ : kind_(k), len_(), keep_(false)
+{}
-string LyXLength::asString() const
-{
-#ifdef HAVE_SSTREAM
- ostringstream buffer;
- buffer << val << unit_name[uni]; // setw?
- return buffer.str().c_str();
-#else
- char tbuf[20];
- ostrstream buffer(tbuf, 20);
- buffer << val << unit_name[uni] << '\0'; // setw?
- return buffer.str();
-#endif
-}
+VSpace::VSpace(LyXLength const & l)
+ : kind_(LENGTH), len_(l), keep_(false)
+{}
-/* LyXGlueLength class
- */
+VSpace::VSpace(LyXGlueLength const & l)
+ : kind_(LENGTH), len_(l), keep_(false)
+{}
-LyXGlueLength::LyXGlueLength (string const & data)
+
+VSpace::VSpace(string const & data)
+ : kind_(DEFSKIP), len_(), keep_(false)
{
- LyXGlueLength tmp(0.0, PT);
-
- if (!isValidGlueLength (data, &tmp))
- return; // should raise an exception
- else {
- val = tmp.val;
- uni = tmp.uni;
- plus_val = tmp.plus_val;
- plus_uni = tmp.plus_uni;
- minus_val = tmp.minus_val;
- minus_uni = tmp.minus_uni;
+ if (data.empty())
+ return;
+
+ string input = rtrim(data);
+
+ string::size_type const length = input.length();
+
+ if (length > 1 && input[length - 1] == '*') {
+ keep_ = true;
+ input.erase(length - 1);
+ }
+
+ if (prefixIs(input, "defskip"))
+ kind_ = DEFSKIP;
+ else if (prefixIs(input, "smallskip"))
+ kind_ = SMALLSKIP;
+ else if (prefixIs(input, "medskip"))
+ kind_ = MEDSKIP;
+ else if (prefixIs(input, "bigskip"))
+ kind_ = BIGSKIP;
+ else if (prefixIs(input, "vfill"))
+ kind_ = VFILL;
+ else if (isValidGlueLength(input, &len_))
+ kind_ = LENGTH;
+ else if (isStrDbl(input)) {
+ // This last one is for reading old .lyx files
+ // without units in added_space_top/bottom.
+ // Let unit default to centimeters here.
+ kind_ = LENGTH;
+ len_ = LyXGlueLength(LyXLength(convert<double>(input), LyXLength::CM));
}
}
-bool LyXGlueLength::operator== (LyXGlueLength const & other) const
+VSpace::vspace_kind VSpace::kind() const
{
- return (val == other.val &&
- uni == other.uni &&
- plus_val == other.plus_val &&
- plus_uni == other.plus_uni &&
- minus_val == other.minus_val &&
- minus_uni == other.minus_uni);
+ return kind_;
}
-string LyXGlueLength::asString() const
+LyXGlueLength const & VSpace::length() const
{
-#ifdef HAVE_SSTREAM
- ostringstream buffer;
-#else
- char tbuf[20];
- ostrstream buffer(tbuf, 20);
-#endif
- if (plus_val != 0.0)
- if (minus_val != 0.0)
- if ((uni == plus_uni) && (uni == minus_uni))
- if (plus_val == minus_val)
- buffer << val << "+-"
- << plus_val << unit_name[uni];
- else
- buffer << val
- << '+' << plus_val
- << '-' << minus_val
- << unit_name[uni];
- else
- if (plus_uni == minus_uni
- && plus_val == minus_val)
- buffer << val << unit_name[uni]
- << "+-" << plus_val
- << unit_name[plus_uni];
-
- else
- buffer << val << unit_name[uni]
- << '+' << plus_val
- << unit_name[plus_uni]
- << '-' << minus_val
- << unit_name[minus_uni];
- else
- if (uni == plus_uni)
- buffer << val << '+' << plus_val
- << unit_name[uni];
- else
- buffer << val << unit_name[uni]
- << '+' << plus_val
- << unit_name[plus_uni];
-
- else
- if (minus_val != 0.0)
- if (uni == minus_uni)
- buffer << val << '-' << minus_val
- << unit_name[uni];
-
- else
- buffer << val << unit_name[uni]
- << '-' << minus_val
- << unit_name[minus_uni];
- else
- buffer << val << unit_name[uni];
-#ifdef HAVE_SSTREAM
- return buffer.str().c_str();
-#else
- buffer << '\0';
- return buffer.str();
-#endif
+ return len_;
}
-string LyXGlueLength::asLatexString() const
+bool VSpace::keep() const
{
-#ifdef HAVE_SSTREAM
- ostringstream buffer;
-#else
- char tbuf[40];
- ostrstream buffer(tbuf, 40);
-#endif
-
- if (plus_val != 0.0)
- if (minus_val != 0.0)
- buffer << val << unit_name[uni]
- << " plus "
- << plus_val << unit_name[plus_uni]
- << " minus "
- << minus_val << unit_name[minus_uni];
- else
- buffer << val << unit_name[uni]
- << " plus "
- << plus_val << unit_name[plus_uni];
- else
- if (minus_val != 0.0)
- buffer << val << unit_name[uni]
- << " minus "
- << minus_val << unit_name[minus_uni];
- else
- buffer << val << unit_name[uni];
-#ifdef HAVE_SSTREAM
- return buffer.str().c_str();
-#else
- buffer << '\0';
- return buffer.str();
-#endif
+ return keep_;
}
-/* VSpace class
- */
-
-VSpace::VSpace (string const & data)
- : kin (NONE), len (0.0, LyXLength::PT)
+void VSpace::setKeep(bool val)
{
- kp = false;
- if (data.empty())
- return;
- float value;
- string input = strip(data);
-
- int length = input.length();
-
- if (length > 1 && input[length-1] == '*') {
- kp = true;
- input.erase(length - 1);
- }
-
- if (prefixIs (input, "defskip")) kin = DEFSKIP;
- else if (prefixIs (input, "smallskip")) kin = SMALLSKIP;
- else if (prefixIs (input, "medskip")) kin = MEDSKIP;
- else if (prefixIs (input, "bigskip")) kin = BIGSKIP;
- else if (prefixIs (input, "vfill")) kin = VFILL;
- else if (isValidGlueLength (input, &len))
- kin = LENGTH;
- else if (sscanf (input.c_str(), "%f", &value) == 1) {
- // This last one is for reading old .lyx files
- // without units in added_space_top/bottom.
- // Let unit default to centimeters here.
- kin = LENGTH;
- len = LyXGlueLength (value, LyXLength::CM);
- }
+ keep_ = val;
}
bool VSpace::operator==(VSpace const & other) const
{
- if (this->kin == other.kin)
- if (this->kin == LENGTH)
- if (this->len == other.len)
- return this->kp == other.kp;
- else
- return false;
- else
- return this->kp == other.kp;
- else
+ if (kind_ != other.kind_)
+ return false;
+
+ if (kind_ != LENGTH)
+ return this->keep_ == other.keep_;
+
+ if (len_ != other.len_)
return false;
+
+ return keep_ == other.keep_;
}
-string VSpace::asLyXCommand() const
+string const VSpace::asLyXCommand() const
{
- string result;
-
- switch (kin) {
- case NONE: break;
+ string result;
+ switch (kind_) {
case DEFSKIP: result = "defskip"; break;
case SMALLSKIP: result = "smallskip"; break;
case MEDSKIP: result = "medskip"; break;
case BIGSKIP: result = "bigskip"; break;
case VFILL: result = "vfill"; break;
- case LENGTH: result = len.asString(); break;
+ case LENGTH: result = len_.asString(); break;
}
- if (kp && (kin != NONE) && (kin != DEFSKIP))
- return result += '*';
- else
- return result;
+ if (keep_)
+ result += '*';
+ return result;
}
-string VSpace::asLatexCommand(BufferParams const & params) const
+string const VSpace::asLatexCommand(BufferParams const & params) const
{
- switch (kin) {
- case NONE: return string();
- case DEFSKIP:
+ switch (kind_) {
+ case DEFSKIP:
return params.getDefSkip().asLatexCommand(params);
- case SMALLSKIP: return kp ? "\\vspace*{\\smallskipamount}"
- : "\\smallskip{}";
- case MEDSKIP: return kp ? "\\vspace*{\\medskipamount}"
- : "\\medskip{}";
- case BIGSKIP: return kp ? "\\vspace*{\\bigskipamount}"
- : "\\bigskip{}";
- case VFILL: return kp ? "\\vspace*{\\fill}"
- : "\\vfill{}";
- case LENGTH: return kp ? "\\vspace*{" + len.asLatexString() + '}'
- : "\\vspace{" + len.asLatexString() + '}';
+
+ case SMALLSKIP:
+ return keep_ ? "\\vspace*{\\smallskipamount}" : "\\smallskip{}";
+
+ case MEDSKIP:
+ return keep_ ? "\\vspace*{\\medskipamount}" : "\\medskip{}";
+
+ case BIGSKIP:
+ return keep_ ? "\\vspace*{\\bigskipamount}" : "\\bigskip{}";
+
+ case VFILL:
+ return keep_ ? "\\vspace*{\\fill}" : "\\vfill{}";
+
+ case LENGTH:
+ return keep_ ? "\\vspace*{" + len_.asLatexString() + '}'
+ : "\\vspace{" + len_.asLatexString() + '}';
+
+ default:
+ BOOST_ASSERT(false);
+ return string();
}
- return string(); // should never be reached
}
-int VSpace::inPixels(BufferView * bv) const
+
+int VSpace::inPixels(BufferView const & bv) const
{
// Height of a normal line in pixels (zoom factor considered)
- int height = bv->text->DefaultHeight(); // [pixels]
+ int const default_height = defaultRowHeight();
- // Zoom factor specified by user in percent
- float const zoom = lyxrc.zoom / 100.0; // [percent]
+ switch (kind_) {
- // DPI setting for monitor: pixels/inch
- float const dpi = lyxrc.dpi; // screen resolution [pixels/inch]
+ case DEFSKIP:
+ return bv.buffer()->params().getDefSkip().inPixels(bv);
- // We want the result in pixels
- float result, value;
+ // This is how the skips are normally defined by LateX.
+ // But there should be some way to change this per document.
+ case SMALLSKIP:
+ return default_height / 4;
- switch (kin) {
- case NONE: return 0;
+ case MEDSKIP:
+ return default_height / 2;
- case DEFSKIP:
- return bv->buffer()->params.getDefSkip().inPixels(bv);
-
- // This is how the skips are normally defined by
- // LateX. But there should be some way to change
- // this per document.
- case SMALLSKIP: return height/4;
- case MEDSKIP: return height/2;
- case BIGSKIP: return height;
- case VFILL: return 3*height;
+ case BIGSKIP:
+ return default_height;
+
+ case VFILL:
// leave space for the vfill symbol
+ return 3 * default_height;
+
case LENGTH:
- // Pixel values are scaled so that the ratio
- // between lengths and font sizes on the screen
- // is the same as on paper.
-
- // we don't care about sign of value, we
- // can't display negative anyway
- result = 0.0;
- value = len.value();
- short val_sign = value < 0.0 ? -1 : 1;
-
- switch (len.unit()) {
- case LyXLength::SP:
- // Scaled point: sp = 1/65536 pt
- result = zoom * dpi * value
- / (72.27 * 65536); // 4736286.7
- break;
- case LyXLength::PT:
- // Point: 1 pt = 1/72.27 inch
- result = zoom * dpi * value
- / 72.27; // 72.27
- break;
- case LyXLength::BP:
- // Big point: 1 bp = 1/72 inch
- result = zoom * dpi * value
- / 72; // 72
- break;
- case LyXLength::DD:
- // Didot: 1157dd = 1238 pt?
- result = zoom * dpi * value
- / (72.27 / (0.376 * 2.845)); // 67.559735
- break;
- case LyXLength::MM:
- // Millimeter: 1 mm = 1/25.4 inch
- result = zoom * dpi * value
- / 25.4; // 25.4
- break;
- case LyXLength::PC:
- // Pica: 1 pc = 12 pt
- result = zoom * dpi * value
- / (72.27 / 12); // 6.0225
- break;
- case LyXLength::CC:
- // Cicero: 1 cc = 12 dd
- result = zoom * dpi * value
- / (72.27 / (12 * 0.376 * 2.845)); // 5.6299779
- break;
- case LyXLength::CM:
- // Centimeter: 1 cm = 1/2.54 inch
- result = zoom * dpi * value
- / 2.54; // 2.54
- break;
- case LyXLength::IN:
- // Inch
- result = zoom * dpi * value;
- break;
- case LyXLength::EX:
- // Ex: The height of an "x"
- result = zoom * value * height / 2; // what to / width?
- break;
- case LyXLength::EM: // what to / width?
- // Em: The width of an "m"
- result = zoom * value * height / 2; // Why 2?
- break;
- case LyXLength::MU: // This is probably only allowed in
- // math mode
- result = zoom * value * height;
- break;
- case LyXLength::UNIT_NONE:
- result = 0; // this cannot happen
- break;
- }
- return int (result * val_sign + 0.5);
+ return len_.len().inPixels(bv.workWidth());
+
+ default:
+ BOOST_ASSERT(false);
+ return 0;
}
- return 0; // never reached
}
projects / lyx.git / blobdiff