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: Mathed
*
* Copyright: 1996, 1997 Alejandro Aguilar Sierra
*
* Version: 0.2, Mathed & Lyx project.
*
* This code is under the GNU General Public Licence version 2 or later.
*/
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include "math_macro.h"
#include "array.h"
#include "math_iter.h"
#include "math_inset.h"
#include "math_accentinset.h"
#include "math_deliminset.h"
#include "math_fracinset.h"
#include "math_rowst.h"
#include "support/lstrings.h"
#include "debug.h"
#include "mathed/support.h"
#include "math_macrotemplate.h"
#include "macro_support.h"
#include "Painter.h"
using namespace std;
ostream & operator<<(ostream & o, MathedTextCodes mtc)
{
return o << int(mtc);
}
MathMacro::MathMacro(MathMacroTemplate const & t)
: MathParInset(LM_ST_TEXT, t.GetName(), LM_OT_MACRO),
tmplate_(const_cast<MathMacroTemplate *>(&t)),
args_(t.nargs()),
idx_(t.nargs() ? 0 : -1)
{
array = tmplate_->GetData();
for (int i = 0; i < nargs(); ++i)
args_[i].reset(new MathParInset);
}
MathedInset * MathMacro::Clone()
{
return new MathMacro(*this);
}
void MathMacro::expand()
{
expanded_.reset(static_cast<MathParInset *>(tmplate_->Clone()));
expanded_->substitute(this);
}
MathParInset const * MathMacro::arg(int i) const
{
if (i < 0 || i >= nargs()) {
lyxerr << "Illegal index " << i << " max: " << nargs() << endl;
lyx::Assert(0);
return 0;
}
return i >= 0 ? args_[i].get() : static_cast<MathParInset const *>(this);
}
MathParInset * MathMacro::arg(int i)
{
if (i < 0 || i >= nargs()) {
lyxerr << "Illegal index " << i << " max: " << nargs() << endl;
lyx::Assert(0);
return 0;
}
return i >= 0 ? args_[i].get() : static_cast<MathParInset *>(this);
}
MathMacroTemplate * MathMacro::tmplate() const
{
return const_cast<MathMacroTemplate *>(tmplate_);
}
extern bool is_mathcursor_inside(MathParInset *);
void MathMacro::Metrics()
{
if (is_mathcursor_inside(this)) {
tmplate_->Metrics();
width = tmplate_->Width() + 4;
ascent = tmplate_->Ascent() + 2;
descent = tmplate_->Descent() + 2;
width += mathed_string_width(LM_TC_TEXTRM, size(), GetName()) + 10;
for (int i = 0; i < nargs(); ++i) {
MathParInset * p = arg(i);
p->Metrics();
if (p->Width() + 30 > width)
width = p->Width() + 30;
descent += p->Height() + 10;
}
} else {
expand();
expanded_->Metrics();
width = expanded_->Width() + 6;
ascent = expanded_->Ascent() + 3;
descent = expanded_->Descent() + 3;
}
}
void MathMacro::draw(Painter & pain, int x, int y)
{
LColor::color col;
if (is_mathcursor_inside(this)) {
int h = y + Descent() - 2;
for (int i = nargs() - 1; i >= 0; --i) {
MathParInset * p = arg(i);
h -= p->Descent() + 5;
p->draw(pain, x + 30, h);
char str[] = "#1:";
str[1] += i;
drawStr(pain, LM_TC_TEX, size(), x + 3, h, str);
h -= p->Ascent() + 5;
}
h -= tmplate_->Descent();
int w = mathed_string_width(LM_TC_TEXTRM, size(), GetName());
drawStr(pain, LM_TC_TEXTRM, size(), x + 3, h, GetName());
tmplate_->draw(pain, x + w + 12, h);
col = LColor::red;
} else {
expanded_->draw(pain, x + 3, y);
col = LColor::black;
}
int w = Width();
int a = Ascent();
int h = Height();
pain.rectangle(x + 1, y - a + 1, w - 2, h - 2, col);
}
bool MathMacro::setArgumentIdx(int i)
{
if (i >= 0 && 0 < (nargs() - i)) {
idx_ = i;
return true;
} else
return false;
idx_ = i;
return true;
}
int MathMacro::getArgumentIdx() const
{
//lyxerr << "MathMacro::getArgumentIdx: res: " << idx_ << endl;
return idx_;
}
int MathMacro::getMaxArgumentIdx() const
{
return nargs() - 1;
}
int MathMacro::nargs() const
{
return args_.size();
}
MathedArray & MathMacro::GetData()
{
//lyxerr << "MathMacro::GetData: " << *this << endl;
return idx_ >= 0 ? arg(idx_)->GetData() : MathParInset::GetData();
}
MathedArray const & MathMacro::GetData() const
{
//lyxerr << "MathMacro::GetData: " << *this << endl;
return idx_ >= 0 ? arg(idx_)->GetData() : MathParInset::GetData();
}
int MathMacro::GetColumns() const
{
return idx_ >= 0 ? arg(idx_)->GetColumns() : MathParInset::GetColumns();
}
void MathMacro::GetXY(int & x, int & y) const
{
if (idx_ >= 0)
arg(idx_)->GetXY(x, y);
else
MathParInset::GetXY(x, y);
}
bool MathMacro::Permit(short f) const
{
return idx_ >= 0 ? arg(idx_)->Permit(f) : MathParInset::Permit(f);
}
void MathMacro::SetFocus(int x, int y)
{
idx_ = -1;
for (int i = 0; i < nargs(); ++i) {
if (arg(i)->Inside(x, y)) {
idx_ = i;
break;
}
}
}
void MathMacro::setData(MathedArray const & a, int i)
{
arg(i)->setData(a);
}
void MathMacro::setData(MathedArray const & a)
{
if (idx_ >= 0)
arg(idx_)->setData(a);
else
array = a;
}
MathedTextCodes MathMacro::getTCode() const
{
return nargs() ? LM_TC_ACTIVE_INSET : LM_TC_INSET;
//return LM_TC_INSET;
}
void MathMacro::dump(ostream & os) const
{
os << "\n macro: '" << this << "'\n";
os << " name: '" << name << "'\n";
os << " idx: '" << idx_ << "'\n";
os << " data: '" << array << "'\n";
os << " nargs: '" << nargs() << "'\n";
for (int i = 0; i < nargs(); ++i)
os << " " << arg(i) << ": " << arg(i)->GetData() << endl;
os << endl;
}
void MathMacro::Write(ostream & os, bool fragile)
{
os << '\\' << name;
for (int i = 0; i < nargs(); ++i) {
os << '{';
arg(i)->Write(os, fragile);
os << '}';
}
if (nargs() == 0)
os << ' ';
}
void MathMacro::WriteNormal(ostream & os)
{
os << "[macro " << name << " ";
for (int i = 0; i < nargs(); ++i) {
arg(i)->WriteNormal(os);
os << ' ';
}
os << "] ";
}