]> git.lyx.org Git - lyx.git/blobdiff - src/Cursor.cpp
Fix crash on OS-switch of dark/light mode (#12786)
[lyx.git] / src / Cursor.cpp
index 735ee340662cc338bc7976a8098ec839e9c22291..7afefcf372e3b7cd26558c69af60f8dd28ecf55d 100644 (file)
 
 #include <config.h>
 
+#include "Cursor.h"
+
 #include "Buffer.h"
 #include "BufferView.h"
 #include "CoordCache.h"
-#include "Cursor.h"
 #include "CutAndPaste.h"
-#include "DispatchResult.h"
 #include "FuncCode.h"
 #include "FuncRequest.h"
+#include "Language.h"
 #include "Layout.h"
 #include "LyXAction.h"
 #include "LyXRC.h"
 #include "Paragraph.h"
-#include "ParIterator.h"
 #include "Row.h"
 #include "texstream.h"
 #include "Text.h"
 
 #include "support/debug.h"
 #include "support/docstream.h"
-#include "support/ExceptionMessage.h"
 #include "support/gettext.h"
 #include "support/lassert.h"
 
+#include "insets/InsetLayout.h"
 #include "insets/InsetTabular.h"
-#include "insets/InsetText.h"
 
 #include "mathed/InsetMath.h"
 #include "mathed/InsetMathBrace.h"
@@ -51,6 +50,8 @@
 #include "mathed/MathFactory.h"
 #include "mathed/InsetMathMacro.h"
 
+#include "frontends/Application.h"
+
 #include <sstream>
 #include <limits>
 #include <map>
@@ -121,19 +122,19 @@ DocIterator bruteFind(Cursor const & c, int x, int y)
 
 CursorData::CursorData()
        : DocIterator(), anchor_(), selection_(false), mark_(false),
-         word_selection_(false), autocorrect_(false), current_font(inherit_font)
+         word_selection_(false), current_font(inherit_font)
 {}
 
 
 CursorData::CursorData(Buffer * buffer)
        : DocIterator(buffer), anchor_(), selection_(false), mark_(false),
-         word_selection_(false), autocorrect_(false), current_font(inherit_font)
+         word_selection_(false), current_font(inherit_font)
 {}
 
 
 CursorData::CursorData(DocIterator const & dit)
        : DocIterator(dit), anchor_(), selection_(false), mark_(false),
-         word_selection_(false), autocorrect_(false), current_font(inherit_font)
+         word_selection_(false), current_font(inherit_font)
 {}
 
 
@@ -321,6 +322,7 @@ DocIterator CursorData::selectionEnd() const
        if (di.depth() > depth()) {
                di.resize(depth());
                ++di.pos();
+               di.boundary(true);
        }
        return di;
 }
@@ -330,6 +332,8 @@ namespace {
 
 docstring parbreak(CursorData const * cur)
 {
+       if (cur->inset().getLayout().parbreakIgnored())
+               return docstring();
        odocstringstream os;
        os << '\n';
        // only add blank line if we're not in a ParbreakIsNewline situation
@@ -342,7 +346,7 @@ docstring parbreak(CursorData const * cur)
 }
 
 
-docstring CursorData::selectionAsString(bool with_label) const
+docstring CursorData::selectionAsString(bool const with_label, bool const skipdelete) const
 {
        if (!selection())
                return docstring();
@@ -350,8 +354,12 @@ docstring CursorData::selectionAsString(bool with_label) const
        if (inMathed())
                return cap::grabSelection(*this);
 
-       int const label = with_label
+       int label = with_label
                ? AS_STR_LABEL | AS_STR_INSETS : AS_STR_INSETS;
+       if (skipdelete)
+               label = with_label
+                               ? AS_STR_LABEL | AS_STR_INSETS | AS_STR_SKIPDELETE
+                               : AS_STR_INSETS | AS_STR_SKIPDELETE;
 
        idx_type const startidx = selBegin().idx();
        idx_type const endidx = selEnd().idx();
@@ -496,7 +504,7 @@ void CursorData::clearSelection()
 }
 
 
-int CursorData::countInsetsInSelection(InsetCode const & inset_code)
+int CursorData::countInsetsInSelection(InsetCode const & inset_code) const
 {
        if (!selection_)
                return 0;
@@ -522,7 +530,7 @@ int CursorData::countInsetsInSelection(InsetCode const & inset_code)
 }
 
 
-bool CursorData::insetInSelection(InsetCode const & inset_code)
+bool CursorData::insetInSelection(InsetCode const & inset_code) const
 {
        if (!selection_)
                return false;
@@ -631,9 +639,9 @@ void CursorData::recordUndo(UndoKind kind) const
 }
 
 
-void CursorData::recordUndoInset(Inset const * in) const
+void CursorData::recordUndoInset(Inset const * inset) const
 {
-       buffer()->undo().recordUndoInset(*this, in);
+       buffer()->undo().recordUndoInset(*this, inset);
 }
 
 
@@ -663,7 +671,7 @@ void CursorData::recordUndoSelection() const
 }
 
 
-int CursorData::currentMode()
+int CursorData::currentMode() const
 {
        LASSERT(!empty(), return Inset::UNDECIDED_MODE);
        for (int i = depth() - 1; i >= 0; --i) {
@@ -891,19 +899,19 @@ void Cursor::pop()
 }
 
 
-void Cursor::push(Inset & p)
+void Cursor::push(Inset & inset)
 {
-       push_back(CursorSlice(p));
-       p.setBuffer(*buffer());
+       push_back(CursorSlice(inset));
+       inset.setBuffer(*buffer());
 }
 
 
-void Cursor::pushBackward(Inset & p)
+void Cursor::pushBackward(Inset & inset)
 {
        LASSERT(!empty(), return);
        //lyxerr << "Entering inset " << t << " front" << endl;
-       push(p);
-       p.idxFirst(*this);
+       push(inset);
+       inset.idxFirst(*this);
 }
 
 
@@ -1373,19 +1381,19 @@ void Cursor::updateTextTargetOffset()
 }
 
 
-bool Cursor::selHandle(bool sel)
+bool Cursor::selHandle(bool selecting)
 {
        //lyxerr << "Cursor::selHandle" << endl;
        if (mark())
-               sel = true;
-       if (sel == selection())
+               selecting = true;
+       if (selecting == selection())
                return false;
 
-       if (!sel)
+       if (!selecting)
                cap::saveSelection(*this);
 
        resetAnchor();
-       selection(sel);
+       selection(selecting);
        return true;
 }
 
@@ -1426,10 +1434,7 @@ bool Cursor::atFirstOrLastRow(bool up)
 ///////////////////////////////////////////////////////////////////
 
 #include "mathed/InsetMathChar.h"
-#include "mathed/InsetMathGrid.h"
-#include "mathed/InsetMathScript.h"
 #include "mathed/InsetMathUnknown.h"
-#include "mathed/MathFactory.h"
 #include "mathed/MathStream.h"
 #include "mathed/MathSupport.h"
 
@@ -1590,9 +1595,20 @@ bool Cursor::backspace(bool const force)
                        // [|], can not delete from inside
                        return false;
                } else {
-                       if (inMathed())
-                               pullArg();
-                       else
+                       if (inMathed()) {
+                               switch (inset().asInsetMath()->getType()) {
+                               case hullEqnArray:
+                               case hullAlign:
+                               case hullFlAlign: {
+                                       FuncRequest cmd(LFUN_CHAR_BACKWARD);
+                                       this->dispatch(cmd);
+                                       break;
+                               }
+                               default:
+                                       pullArg();
+                                       break;
+                               }
+                       } else
                                popBackward();
                        return true;
                }
@@ -1697,8 +1713,11 @@ void Cursor::handleNest(MathAtom const & a)
 {
        idx_type const idx = a.nucleus()->asNestInset()->firstIdx();
        //lyxerr << "Cursor::handleNest: " << idx << endl;
+       InsetMath const * im = selectionBegin().inset().asInsetMath();
+       Parse::flags const f = im && im->currentMode() != InsetMath::MATH_MODE
+               ? Parse::TEXTMODE : Parse::NORMAL;
        MathAtom t = a;
-       asArray(cap::grabAndEraseSelection(*this), t.nucleus()->cell(idx));
+       asArray(cap::grabAndEraseSelection(*this), t.nucleus()->cell(idx), f);
        insert(t);
        editInsertedInset();
 }
@@ -1768,7 +1787,7 @@ bool Cursor::macroModeClose(bool cancel)
                // we have to resolve the macro here manually and check its arity
                // to put the selection behind it if arity > 0.
                MacroData const * data = buffer()->getMacro(atomAsMacro->name());
-               if (!selection.empty() && data && data->numargs() - data->optionals() > 0) {
+               if (!selection.empty() && data && data->numargs()) {
                        macroArg = true;
                        atomAsMacro->setDisplayMode(InsetMathMacro::DISPLAY_INTERACTIVE_INIT, 1);
                } else
@@ -1830,13 +1849,13 @@ bool Cursor::inMacroMode() const
 
 InsetMathUnknown * Cursor::activeMacro()
 {
-       return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
+       return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : nullptr;
 }
 
 
 InsetMathUnknown const * Cursor::activeMacro() const
 {
-       return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
+       return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : nullptr;
 }
 
 
@@ -1875,7 +1894,7 @@ void Cursor::normalize()
                       << " in atom: '";
                odocstringstream os;
                otexrowstream ots(os);
-               WriteStream wi(ots, false, true, WriteStream::wsDefault);
+               TeXMathStream wi(ots, false, true, TeXMathStream::wsDefault);
                inset().asInsetMath()->write(wi);
                lyxerr << to_utf8(os.str()) << endl;
                pos() = lastpos();
@@ -2022,20 +2041,39 @@ bool Cursor::mathForward(bool word)
                                        posForward();
                                while (pos() < lastpos() && mc == nextMath().mathClass());
                } else if (openable(nextAtom())) {
+                       InsetMathScript const * n = nextMath().asScriptInset();
+                       bool to_brace_deco = n && !n->nuc().empty()
+                               && n->nuc().back()->lyxCode() == MATH_DECORATION_CODE
+                               && n->nuc().back()->mathClass() == MC_OP;
                        // single step: try to enter the next inset
                        pushBackward(nextMath());
                        inset().idxFirst(*this);
+                       // Make sure the cursor moves directly to an
+                       // \overbrace or \underbrace inset (bug 2264)
+                       if (to_brace_deco) {
+                               pushBackward(nextMath());
+                               inset().idxFirst(*this);
+                       }
                } else
                        posForward();
                return true;
        }
        if (inset().idxForward(*this))
                return true;
+       InsetMath const * m = inset().asInsetMath();
+       bool from_brace_deco = m
+               && m->lyxCode() == MATH_DECORATION_CODE
+               && m->mathClass() == MC_OP;
        // try to pop forwards --- but don't pop out of math! leave that to
        // the FINISH lfuns
        int s = depth() - 2;
-       if (s >= 0 && operator[](s).inset().asInsetMath())
-               return popForward();
+       if (s >= 0 && operator[](s).inset().asInsetMath() && popForward()) {
+               // Make sure the cursor moves directly to an
+               // \overbrace or \underbrace inset (bug 2264)
+               bool to_script = inset().asInsetMath()
+                       && inset().asInsetMath()->asScriptInset();
+               return from_brace_deco && to_script ? mathForward(word) : true;
+       }
        return false;
 }
 
@@ -2057,21 +2095,41 @@ bool Cursor::mathBackward(bool word)
                                while (pos() > 0 && mc == prevMath().mathClass());
                        }
                } else if (openable(prevAtom())) {
+                       InsetMathScript const * p = prevMath().asScriptInset();
+                       bool to_brace_deco = p && !p->nuc().empty()
+                               && p->nuc().back()->lyxCode() == MATH_DECORATION_CODE
+                               && p->nuc().back()->mathClass() == MC_OP;
                        // single step: try to enter the preceding inset
                        posBackward();
                        push(nextMath());
                        inset().idxLast(*this);
+                       // Make sure the cursor moves directly to an
+                       // \overbrace or \underbrace inset (bug 2264)
+                       if (to_brace_deco) {
+                               posBackward();
+                               push(nextMath());
+                               inset().idxLast(*this);
+                       }
                } else
                        posBackward();
                return true;
        }
        if (inset().idxBackward(*this))
                return true;
+       InsetMath const * m = inset().asInsetMath();
+       bool from_brace_deco = m
+               && m->lyxCode() == MATH_DECORATION_CODE
+               && m->mathClass() == MC_OP;
        // try to pop backwards --- but don't pop out of math! leave that to
        // the FINISH lfuns
        int s = depth() - 2;
-       if (s >= 0 && operator[](s).inset().asInsetMath())
-               return popBackward();
+       if (s >= 0 && operator[](s).inset().asInsetMath() && popBackward()) {
+               // Make sure the cursor moves directly to an
+               // \overbrace or \underbrace inset (bug 2264)
+               bool to_script = inset().asInsetMath()
+                       && inset().asInsetMath()->asScriptInset();
+               return from_brace_deco && to_script ? mathBackward(word) : true;
+       }
        return false;
 }
 
@@ -2394,6 +2452,22 @@ bool notifyCursorLeavesOrEnters(Cursor const & old, Cursor & cur)
 }
 
 
+void Cursor::setLanguageFromInput()
+{
+       if (!lyxrc.respect_os_kbd_language
+           || !inTexted()
+           || paragraph().isPassThru())
+               return;
+       string const & code = theApp()->inputLanguageCode();
+       Language const * lang = languages.getFromCode(code, buffer()->getLanguages());
+       if (lang) {
+               current_font.setLanguage(lang);
+               real_current_font.setLanguage(lang);
+       } else
+               LYXERR0("setLanguageFromCode: unknown language code " << code);
+}
+
+
 void Cursor::setCurrentFont()
 {
        CursorSlice const & cs = innerTextSlice();
@@ -2427,6 +2501,9 @@ void Cursor::setCurrentFont()
        current_font = par.getFontSettings(bufparams, cpos);
        real_current_font = tm.displayFont(cpit, cpos);
 
+       // set language to input language
+       setLanguageFromInput();
+
        // special case for paragraph end
        if (cs.pos() == lastpos()
            && tm.isRTLBoundary(cpit, cs.pos())
@@ -2437,23 +2514,26 @@ void Cursor::setCurrentFont()
                real_current_font.setLanguage(lang);
                real_current_font.fontInfo().setNumber(FONT_OFF);
        }
+
+       // No language in pass thru situations
+       if (cs.paragraph().isPassThru()) {
+               current_font.setLanguage(latex_language);
+               real_current_font.setLanguage(latex_language);
+       }
 }
 
 
 void Cursor::checkBufferStructure()
 {
+       if (buffer()->isInternal())
+               return;
+
        Buffer const * master = buffer()->masterBuffer();
        master->tocBackend().updateItem(*this);
        if (master != buffer() && !master->hasGuiDelegate())
                // In case the master has no gui associated with it,
                // the TocItem is not updated (part of bug 5699).
                buffer()->tocBackend().updateItem(*this);
-
-       // If the last tracked change of the paragraph has just been
-       // deleted, then we need to recompute the buffer flag
-       // tracked_changes_present_.
-       if (inTexted() && paragraph().isChangeUpdateRequired())
-               disp_.forceChangesUpdate();
 }