]> git.lyx.org Git - lyx.git/blobdiff - src/Paragraph.cpp
Correct Right Arrow key processing in Modules list
[lyx.git] / src / Paragraph.cpp
index 133ddd15b8be95008949d7b5e2223a718297eac0..45cc80ef6aeaa1d426e6bfc01ec5d6d3808729bc 100644 (file)
@@ -1027,50 +1027,70 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
                close = true;
        }
 
-       // FIXME: Bug: we can have an empty font change here!
-       // if there has just been a font change, we are going to close it
-       // right now, which means stupid latex code like \textsf{}. AFAIK,
-       // this does not harm dvi output. A minor bug, thus (JMarc)
-
-       // Some insets cannot be inside a font change command.
-       // However, even such insets *can* be placed in \L or \R
-       // or their equivalents (for RTL language switches), so we don't
-       // close the language in those cases.
-       // ArabTeX, though, cannot handle this special behavior, it seems.
-       bool arabtex = basefont.language()->lang() == "arabic_arabtex"
-               || running_font.language()->lang() == "arabic_arabtex";
-       if (open_font && !inset->inheritFont()) {
-               bool needPar = false;
-               bool closeLanguage = arabtex
-                       || basefont.isRightToLeft() == running_font.isRightToLeft();
-               // We pass non_inherit_inset = true here since size switches
-               // ought not to be terminated here (#8384).
-               unsigned int count = running_font.latexWriteEndChanges(os,
-                                       bparams, runparams, basefont, basefont,
-                                       needPar, closeLanguage, true);
-               column += count;
-               // if any font properties were closed, update the running_font,
-               // making sure, however, to leave the language as it was
-               if (count > 0) {
-                       // FIXME: probably a better way to keep track of the old
-                       // language, than copying the entire font?
-                       Font const copy_font(running_font);
-                       basefont = owner_->getLayoutFont(bparams, outerfont);
-                       running_font = basefont;
-                       if (!closeLanguage)
-                               running_font.setLanguage(copy_font.language());
-                       // For these, we use switches, so no need to close
-                       basefont.fontInfo().setSize(copy_font.fontInfo().size());
-                       basefont.fontInfo().setFamily(copy_font.fontInfo().family());
-                       basefont.fontInfo().setSeries(copy_font.fontInfo().series());
-                       // leave font open if language or any of the switches is still open
-                       open_font = (running_font.language() == basefont.language()
-                                    || running_font.fontInfo().size() == basefont.fontInfo().size()
-                                    || running_font.fontInfo().family() == basefont.fontInfo().family()
-                                    || running_font.fontInfo().series() == basefont.fontInfo().series());
-                       if (closeLanguage)
-                               runparams.local_font = &basefont;
+       if (open_font && (!inset->inheritFont() || inset->allowMultiPar())) {
+               // Some insets cannot be inside a font change command.
+               // However, even such insets *can* be placed in \L or \R
+               // or their equivalents (for RTL language switches),
+               // so we don't close the language in those cases
+               // (= differing isRightToLeft()).
+               // ArabTeX, though, doesn't seem to handle this special behavior.
+               bool const inRLSwitch = 
+                               basefont.isRightToLeft() != running_font.isRightToLeft()
+                               && basefont.language()->lang() != "arabic_arabtex"
+                               && running_font.language()->lang() != "arabic_arabtex";
+               // Having said that, PassThru insets must be inside a font change command,
+               // as we do not re-open the font inside. So:
+               bool const closeLanguage = !inset->isPassThru() && !inRLSwitch;
+               bool lang_closed = false;
+               bool lang_switched_at_inset = false;
+               // Close language if needed
+               if (closeLanguage) {
+                       // We need prev_font here as language changes directly at inset
+                       // will only be started inside the inset.
+                       Font const prev_font = (i > 0) ?
+                                               owner_->getFont(bparams, i - 1, outerfont)
+                                             : running_font;
+                       Font tmpfont(basefont);
+                       tmpfont.setLanguage(prev_font.language());
+                       bool needPar = false;
+                       unsigned int count = tmpfont.latexWriteEndChanges(os, bparams, runparams,
+                                                                         basefont, basefont,
+                                                                         needPar, closeLanguage);
+                       column += count;
+                       lang_closed = count > 0;
+                       lang_switched_at_inset = prev_font.language() != running_font.language();
                }
+               // Now re-do font changes in a way needed here
+               // (using switches with multi-par insets)
+               InsetText const * textinset = inset->asInsetText();
+               bool const cprotect = textinset
+                       ? textinset->hasCProtectContent(runparams.moving_arg)
+                         && !textinset->text().isMainText()
+                       : false;
+               unsigned int count2 = running_font.latexWriteStartChanges(os, bparams,
+                                                     runparams, basefont,
+                                                     running_font, true,
+                                                     cprotect);
+               column += count2;
+               // Update the running_font, making sure, however,
+               // to leave the language as it was.
+               // FIXME: probably a better way to keep track of the old
+               // language, than copying the entire font?
+               Font const copy_font(running_font);
+               basefont = owner_->getLayoutFont(bparams, outerfont);
+               running_font = basefont;
+               if (!closeLanguage)
+                       running_font.setLanguage(copy_font.language());
+               // For these, we use switches, so they should be taken as
+               // base inside the inset.
+               basefont.fontInfo().setSize(copy_font.fontInfo().size());
+               basefont.fontInfo().setFamily(copy_font.fontInfo().family());
+               basefont.fontInfo().setSeries(copy_font.fontInfo().series());
+               if (count2 == 0 && (lang_closed || lang_switched_at_inset))
+                       // All fonts closed
+                       open_font = false;
+               if (closeLanguage)
+                       runparams.local_font = &basefont;
        }
 
        size_t const previous_row_count = os.texrow().rows();
@@ -2560,17 +2580,26 @@ void Paragraph::latex(BufferParams const & bparams,
 
                // Fully instantiated font
                Font const current_font = getFont(bparams, i, outerfont);
+               // Previous font
+               Font const prev_font = (i > 0) ?
+                                       getFont(bparams, i - 1, outerfont)
+                                     : current_font;
 
                Font const last_font = running_font;
                bool const in_ct_deletion = (bparams.output_changes
                                             && runningChange == change
                                             && change.type == Change::DELETED
                                             && !os.afterParbreak());
+               bool const multipar_inset =
+                       (c == META_INSET && getInset(i) && getInset(i)->allowMultiPar());
 
                // Do we need to close the previous font?
                if (open_font &&
-                   (current_font != running_font ||
-                    current_font.language() != running_font.language()))
+                   ((current_font != running_font
+                     || current_font.language() != running_font.language())
+                    || (multipar_inset
+                        && (current_font == prev_font
+                            || current_font.language() == prev_font.language()))))
                {
                        // ensure there is no open script-wrapper
                        if (!alien_script.empty()) {
@@ -2656,10 +2685,16 @@ void Paragraph::latex(BufferParams const & bparams,
                                column += 1;
                        }
                        otexstringstream ots;
-                       bool const non_inherit_inset = (c == META_INSET && getInset(i) && !getInset(i)->inheritFont());
-                       column += current_font.latexWriteStartChanges(ots, bparams,
-                                                             runparams, basefont,
-                                                             last_font, non_inherit_inset);
+                       if (!multipar_inset) {
+                               InsetText const * textinset = inInset().asInsetText();
+                               bool const cprotect = textinset
+                                       ? textinset->hasCProtectContent(runparams.moving_arg)
+                                         && !textinset->text().isMainText()
+                                       : false;
+                               column += current_font.latexWriteStartChanges(ots, bparams,
+                                                                             runparams, basefont, last_font, false,
+                                                                             cprotect);
+                       }
                        // Check again for display math in ulem commands as a
                        // font change may also occur just before a math inset.
                        if (runparams.inDisplayMath && !deleted_display_math
@@ -2750,9 +2785,17 @@ void Paragraph::latex(BufferParams const & bparams,
                                                incremented = true;
                                        }
                                }
+                               // We need to restore these after insets with
+                               // allowMultiPar() true
+                               Font const save_running_font = running_font;
+                               Font const save_basefont = basefont;
                                d->latexInset(bparams, os, rp, running_font,
                                                basefont, real_outerfont, open_font,
                                                runningChange, style, i, column);
+                               if (multipar_inset) {
+                                       running_font = save_running_font;
+                                       basefont = save_basefont;
+                               }
                                if (incremented)
                                        --parInline;