]> git.lyx.org Git - features.git/blobdiff - src/mathed/formula.C
Replace LString.h with support/std_string.h,
[features.git] / src / mathed / formula.C
index 1e1f4beda3f2eac2c2006f99f7c2e4d18a830727..8c6bfd90724efc1ed6086274da5752df5d8200ee 100644 (file)
@@ -1,47 +1,28 @@
-/*
-*  File:        formula.C
-*  Purpose:     Implementation of formula inset
-*  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
-*  Created:     January 1996
-*  Description: Allows the edition of math paragraphs inside Lyx.
-*
-*  Copyright: 1996-1998 Alejandro Aguilar Sierra
-*
-*  Version: 0.4, Lyx project.
-*
-*   You are free to use and modify this code under the terms of
-*   the GNU General Public Licence version 2 or later.
-*/
-
+/**
+ * \file formula.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Alejandro Aguilar Sierra
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
 
 #include <config.h>
 
 #include "formula.h"
 #include "math_cursor.h"
 #include "math_parser.h"
-#include "math_charinset.h"
-#include "math_arrayinset.h"
-#include "metricsinfo.h"
-#include "math_deliminset.h"
 #include "math_hullinset.h"
-#include "math_support.h"
 #include "math_mathmlstream.h"
 #include "textpainter.h"
 
-#include "BufferView.h"
-#include "gettext.h"
 #include "debug.h"
-#include "lyxrc.h"
-#include "funcrequest.h"
+#include "latexrunparams.h"
+#include "support/std_sstream.h"
 
-#include "support/LOstream.h"
-#include "support/LAssert.h"
-#include "support/lyxlib.h"
-#include "support/systemcall.h"
-#include "support/filetools.h"
 
-#include "frontends/Alert.h"
-#include "frontends/LyXView.h"
 #include "frontends/Painter.h"
 
 #include "graphics/PreviewedInset.h"
 
 using std::ostream;
 using std::vector;
+using std::auto_ptr;
+using std::endl;
 
 
-class InsetFormula::PreviewImpl : public grfx::PreviewedInset {
+class InsetFormula::PreviewImpl : public lyx::graphics::PreviewedInset {
 public:
        ///
        PreviewImpl(InsetFormula & p) : PreviewedInset(p) {}
@@ -87,11 +70,11 @@ InsetFormula::InsetFormula(InsetFormula const & other)
 {}
 
 
-InsetFormula::InsetFormula(BufferView * bv)
+InsetFormula::InsetFormula(BufferView *)
        : par_(MathAtom(new MathHullInset)),
          preview_(new PreviewImpl(*this))
 {
-       view_ = bv->owner()->view();
+       //view_ = bv->owner()->view();
 }
 
 
@@ -102,7 +85,7 @@ InsetFormula::InsetFormula(string const & data)
        if (!data.size())
                return;
        if (!mathed_parse_normal(par_, data))
-               lyxerr << "cannot interpret '" << data << "' as math\n";
+               lyxerr << "cannot interpret '" << data << "' as math" << endl;
 }
 
 
@@ -111,13 +94,13 @@ InsetFormula::~InsetFormula()
 {}
 
 
-Inset * InsetFormula::clone(Buffer const &, bool) const
+auto_ptr<InsetBase> InsetFormula::clone() const
 {
-       return new InsetFormula(*this);
+       return auto_ptr<InsetBase>(new InsetFormula(*this));
 }
 
 
-void InsetFormula::write(Buffer const *, ostream & os) const
+void InsetFormula::write(Buffer const &, ostream & os) const
 {
        WriteStream wi(os, false, false);
        os << par_->fileInsetLabel() << ' ';
@@ -125,24 +108,26 @@ void InsetFormula::write(Buffer const *, ostream & os) const
 }
 
 
-int InsetFormula::latex(Buffer const *, ostream & os, bool fragile, bool) const
+int InsetFormula::latex(Buffer const &, ostream & os,
+                       LatexRunParams const & runparams) const
 {
-       WriteStream wi(os, fragile, true);
+       WriteStream wi(os, runparams.moving_arg, true);
        par_->write(wi);
        return wi.line();
 }
 
 
-int InsetFormula::ascii(Buffer const *, ostream & os, int) const
+int InsetFormula::ascii(Buffer const &, ostream & os, int) const
 {
        if (0 && display()) {
+               Dimension dim;
                TextMetricsInfo mi;
-               par()->metricsT(mi);
-               TextPainter tpain(par()->width(), par()->height());
-               par()->drawT(tpain, 0, par()->ascent());
+               par()->metricsT(mi, dim);
+               TextPainter tpain(dim.width(), dim.height());
+               par()->drawT(tpain, 0, dim.ascent());
                tpain.show(os, 3);
                // reset metrics cache to "real" values
-               metrics();
+               //metrics();
                return tpain.textheight();
        } else {
                WriteStream wi(os, false, true);
@@ -152,13 +137,13 @@ int InsetFormula::ascii(Buffer const *, ostream & os, int) const
 }
 
 
-int InsetFormula::linuxdoc(Buffer const * buf, ostream & os) const
+int InsetFormula::linuxdoc(Buffer const & buf, ostream & os) const
 {
        return docbook(buf, os, false);
 }
 
 
-int InsetFormula::docbook(Buffer const * buf, ostream & os, bool) const
+int InsetFormula::docbook(Buffer const & buf, ostream & os, bool) const
 {
        MathMLStream ms(os);
        ms << MTag("equation");
@@ -175,23 +160,23 @@ int InsetFormula::docbook(Buffer const * buf, ostream & os, bool) const
 }
 
 
-void InsetFormula::read(Buffer const *, LyXLex & lex)
+void InsetFormula::read(Buffer const &, LyXLex & lex)
 {
        mathed_parse_normal(par_, lex);
        // remove extra 'mathrm' for chemistry stuff.
        // will be re-added on write
        if (par_->asHullInset()->getType() =="chemistry")  {
-               lyxerr << "this is chemistry\n";
+               lyxerr << "this is chemistry" << endl;
                if (par_->cell(0).size() == 1) {
-                       lyxerr << "this is size 1\n";
-           if (par_->cell(0)[0]->asFontInset()) {
-                               lyxerr << "this is a font inset \n";
-                               lyxerr << "replacing " << par_.nucleus()->cell(0) << 
-                                       " with " << par_->cell(0)[0]->cell(0) << "\n";
+                       lyxerr << "this is size 1" << endl;
+                       if (par_->cell(0)[0]->asFontInset()) {
+                               lyxerr << "this is a font inset "
+                                      << "replacing " << par_.nucleus()->cell(0) <<
+                                       " with " << par_->cell(0)[0]->cell(0) << endl;
                        }
                }
        }
-       metrics();
+       //metrics();
 }
 
 
@@ -202,60 +187,54 @@ void InsetFormula::read(Buffer const *, LyXLex & lex)
 //}
 
 
-void InsetFormula::draw(BufferView * bv, LyXFont const & font,
-                       int y, float & xx) const
+void InsetFormula::draw(PainterInfo & pi, int x, int y) const
 {
-       cache(bv);
+       cache(pi.base.bv);
        // This initiates the loading of the preview, so should come
        // before the metrics are computed.
        bool const use_preview = preview_->previewReady();
 
-       int const x = int(xx);
-       int const w = width(bv, font);
-       int const d = descent(bv, font);
-       int const a = ascent(bv, font);
+       int const w = dim_.wid;
+       int const d = dim_.des;
+       int const a = dim_.asc;
        int const h = a + d;
 
-       PainterInfo pi(bv->painter());
-
        if (use_preview) {
                pi.pain.image(x + 1, y - a, w, h,   // one pixel gap in front
                              *(preview_->pimage()->image()));
        } else {
-               pi.base.style = LM_ST_TEXT;
-               pi.base.font  = font;
-               pi.base.font.setColor(LColor::math);
+               PainterInfo p(pi.base.bv);
+               p.base.style = LM_ST_TEXT;
+               p.base.font  = pi.base.font;
+               p.base.font.setColor(LColor::math);
                if (lcolor.getX11Name(LColor::mathbg)
                            != lcolor.getX11Name(LColor::background))
-                       pi.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
+                       p.pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
 
                if (mathcursor &&
                                const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
                {
                        mathcursor->drawSelection(pi);
-                       //pi.pain.rectangle(x, y - a, w, h, LColor::mathframe);
+                       //p.pain.rectangle(x, y - a, w, h, LColor::mathframe);
                }
 
-               par_->draw(pi, x, y);
+               par_->draw(p, x + offset_, y);
        }
 
-       xx += w;
        xo_ = x;
        yo_ = y;
 }
 
 
-vector<string> const InsetFormula::getLabelList() const
+void InsetFormula::getLabelList(vector<string> & res) const
 {
-       vector<string> res;
        par()->getLabelList(res);
-       return res;
 }
 
 
-Inset::Code InsetFormula::lyxCode() const
+InsetOld::Code InsetFormula::lyxCode() const
 {
-       return Inset::MATH_CODE;
+       return InsetOld::MATH_CODE;
 }
 
 
@@ -265,38 +244,42 @@ void InsetFormula::validate(LaTeXFeatures & features) const
 }
 
 
-bool InsetFormula::insetAllowed(Inset::Code code) const
+bool InsetFormula::insetAllowed(InsetOld::Code code) const
 {
        return
-                  code == Inset::LABEL_CODE
-               || code == Inset::REF_CODE
-               || code == Inset::ERT_CODE;
-}
-
-
-int InsetFormula::ascent(BufferView *, LyXFont const &) const
-{
-       return preview_->previewReady() ?
-               preview_->pimage()->ascent() : 1 + par_->ascent();
+                  code == InsetOld::LABEL_CODE
+               || code == InsetOld::REF_CODE
+               || code == InsetOld::ERT_CODE;
 }
 
 
-int InsetFormula::descent(BufferView *, LyXFont const &) const
+void InsetFormula::metrics(MetricsInfo & m, Dimension & dim) const
 {
-       if (!preview_->previewReady())
-               return 1 + par_->descent();
-
-       int const descent = preview_->pimage()->descent();
-       return display() ? descent + 12 : descent;
-}
+       view_ = m.base.bv;
+       if (preview_->previewReady()) {
+               dim.asc = preview_->pimage()->ascent();
+               dim.des = preview_->pimage()->descent();
+               // insert a one pixel gap in front of the formula
+               dim.wid = 1 + preview_->pimage()->width();
+               if (display())
+                       dim.des += 12;
+       } else {
+               MetricsInfo mi = m;
+               mi.base.style = LM_ST_TEXT;
+               mi.base.font.setColor(LColor::math);
+               par()->metrics(mi, dim);
+               dim.asc += 1;
+               dim.des += 1;
+       }
 
+       if (display()) {
+               offset_ = (m.base.textwidth - dim.wid) / 2;
+               dim.wid = m.base.textwidth;
+       } else {
+               offset_ = 0;
+       }
 
-int InsetFormula::width(BufferView * bv, LyXFont const & font) const
-{
-       metrics(bv, font);
-       return preview_->previewReady() ?
-               1 + preview_->pimage()->width() : par_->width();
-               // insert a one pixel gap in front of the formula
+       dim_ = dim;
 }
 
 
@@ -310,7 +293,7 @@ void InsetFormula::mutate(string const & type)
 // preview stuff
 //
 
-void InsetFormula::addPreview(grfx::PreviewLoader & ploader) const
+void InsetFormula::addPreview(lyx::graphics::PreviewLoader & ploader) const
 {
        preview_->addPreview(ploader);
 }
@@ -335,4 +318,3 @@ string const InsetFormula::PreviewImpl::latexString() const
        parent().par_->write(wi);
        return STRCONV(ls.str());
 }
-