lyx_mirror/src/mathed/math_macro.C

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/*
* File: math_macro.C
* Purpose: Implementation of macro class for mathed
* Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
* Created: November 1996
* Description: WYSIWYG math macros
*
* Dependencies: Math
*
* Copyright: 1996, 1997 Alejandro Aguilar Sierra
*
* Version: 0.2, Math & Lyx project.
*
* This code is under the GNU General Public Licence version 2 or later.
*/
#ifdef __GNUG__
#pragma implementation
#endif
#include "math_macro.h"
#include "array.h"
#include "support/lstrings.h"
#include "support/LAssert.h"
#include "debug.h"
#include "mathed/support.h"
#include "mathed/math_cursor.h"
#include "math_macrotable.h"
#include "math_macrotemplate.h"
#include "Painter.h"
#include "LaTeXFeatures.h"
using std::endl;
MathMacro::MathMacro(MathMacroTemplate const & t)
: MathNestInset(t.numargs()), tmplate_(&t)
{}
MathMacro::MathMacro(MathMacro const & t)
: MathNestInset(t), tmplate_(t.tmplate_) // don't copy 'expanded_'!
{}
MathInset * MathMacro::clone() const
{
return new MathMacro(*this);
}
const char * MathMacro::name() const
{
return tmplate_->name().c_str();
}
void MathMacro::metrics(MathStyles st) const
{
if (mathcursor && mathcursor->isInside(this)) {
expanded_ = tmplate_->xcell(0);
expanded_.metrics(st);
size_ = st;
width_ = expanded_.width() + 4;
ascent_ = expanded_.ascent() + 2;
descent_ = expanded_.descent() + 2;
width_ += mathed_string_width(LM_TC_TEXTRM, size_, name()) + 10;
int lasc;
int ldes;
int lwid;
mathed_string_dim(LM_TC_TEXTRM, size_, "#1: ", lasc, ldes, lwid);
for (int i = 0; i < nargs(); ++i) {
MathXArray const & c = xcell(i);
c.metrics(st);
width_ = std::max(width_, c.width() + lwid);
descent_ += std::max(c.ascent(), lasc) + 5;
descent_ += std::max(c.descent(), ldes) + 5;
}
} else {
expanded_ = tmplate_->xcell(0);
expanded_.data_.substitute(*this);
expanded_.metrics(st);
size_ = st;
width_ = expanded_.width() + 6;
ascent_ = expanded_.ascent() + 3;
descent_ = expanded_.descent() + 3;
}
}
void MathMacro::draw(Painter & pain, int x, int y) const
{
xo(x);
yo(y);
metrics(size());
LColor::color col;
if (mathcursor && mathcursor->isInside(this)) {
int h = y - ascent() + 2 + expanded_.ascent();
drawStr(pain, LM_TC_TEXTRM, size(), x + 3, h, name());
int const w = mathed_string_width(LM_TC_TEXTRM, size(), name());
expanded_.draw(pain, x + w + 12, h);
h += expanded_.descent();
int lasc;
int ldes;
int lwid;
mathed_string_dim(LM_TC_TEXTRM, size_, "#1: ", lasc, ldes, lwid);
for (int i = 0; i < nargs(); ++i) {
MathXArray const & c = xcell(i);
h += std::max(c.ascent(), lasc) + 5;
c.draw(pain, x + lwid, h);
char str[] = "#1:";
str[1] += i;
drawStr(pain, LM_TC_TEX, size(), x + 3, h, str);
h += std::max(c.descent(), ldes) + 5;
}
col = LColor::red;
} else {
expanded_.draw(pain, x + 3, y);
col = LColor::black;
}
//if (nargs() > 0)
// pain.rectangle(x + 1, y - ascent() + 1, width() - 2, height() - 2, col);
}
void MathMacro::dump(std::ostream & os) const
{
MathMacroTable::dump();
os << "\n macro: '" << this << "'\n";
os << " name: '" << name() << "'\n";
os << " template: '" << tmplate_ << "'\n";
os << " template: '" << *tmplate_ << "'\n";
os << endl;
}
void MathMacro::write(std::ostream & os, bool fragile) const
{
os << '\\' << name();
for (int i = 0; i < nargs(); ++i) {
os << '{';
cell(i).write(os, fragile);
os << '}';
}
if (nargs() == 0)
os << ' ';
}
void MathMacro::writeNormal(std::ostream & os) const
{
os << "[macro " << name() << " ";
for (int i = 0; i < nargs(); ++i) {
cell(i).writeNormal(os);
os << ' ';
}
os << "] ";
}
bool MathMacro::idxUp(int & idx, int & pos) const
{
return MathNestInset::idxLeft(idx, pos);
}
bool MathMacro::idxDown(int & idx, int & pos) const
{
return MathNestInset::idxRight(idx, pos);
}
bool MathMacro::idxLeft(int &, int &) const
{
return false;
}
bool MathMacro::idxRight(int &, int &) const
{
return false;
}
void MathMacro::validate(LaTeXFeatures & features) const
{
if (name() == "binom")
features.binom = true;
//MathInset::validate(features);
}