]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView.C
more cursor dispatch
[lyx.git] / src / BufferView.C
index 6850a52d6a10a55771c8c3ef2a7523f9a0a0c6dd..d1ff326a342b1ed739c172f98612c333a29d6fc8 100644 (file)
@@ -1,78 +1,81 @@
 /**
  * \file BufferView.C
- * Copyright 1995-2002 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
+ * \author Alfredo Braunstein
  * \author Lars Gullik Bjønnes
- * \author John Levon <moz@compsoc.man.ac.uk>
+ * \author John Levon
+ * \author André Pönitz
+ * \author Jürgen Vigna
+ *
+ * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
 #include "BufferView.h"
-#include "BufferView_pimpl.h"
 
-#include "LaTeX.h"
-#include "ParagraphParameters.h"
-#include "WordLangTuple.h"
 #include "buffer.h"
 #include "bufferlist.h"
+#include "BufferView_pimpl.h"
 #include "debug.h"
+#include "funcrequest.h"
 #include "gettext.h"
-#include "errorlist.h"
 #include "iterators.h"
 #include "language.h"
-#include "lyxcursor.h"
-#include "lyxlex.h"
+#include "lyxlayout.h"
 #include "lyxtext.h"
-#include "undo_funcs.h"
-#include "changes.h"
+#include "paragraph.h"
 #include "paragraph_funcs.h"
+#include "PosIterator.h"
+#include "texrow.h"
+#include "undo.h"
+#include "WordLangTuple.h"
 
 #include "frontends/Alert.h"
 #include "frontends/Dialogs.h"
 #include "frontends/LyXView.h"
-#include "frontends/WorkArea.h"
 #include "frontends/screen.h"
+#include "frontends/WorkArea.h"
 
 #include "insets/insetcommand.h" // ChangeRefs
 #include "insets/updatableinset.h"
 
-#include "support/FileInfo.h"
 #include "support/filetools.h"
-#include "support/types.h"
 #include "support/lyxalgo.h" // lyx_count
 
-#include <fstream>
+using lyx::support::bformat;
+using lyx::support::MakeAbsPath;
 
-extern BufferList bufferlist;
+using std::distance;
+using std::find;
+using std::string;
+using std::swap;
+using std::vector;
 
-using lyx::pos_type;
-using namespace lyx::support;
 
-using std::pair;
-using std::endl;
-using std::ifstream;
-using std::vector;
-using std::find;
-using std::count_if;
+extern BufferList bufferlist;
 
 
 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
                       int width, int height)
-       : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
-{
-       text = 0;
-}
+       : pimpl_(new Pimpl(*this, owner, xpos, ypos, width, height))
+{}
 
 
 BufferView::~BufferView()
 {
-       delete text;
        delete pimpl_;
 }
 
 
+void BufferView::unsetXSel()
+{
+       pimpl_->xsel_cache_.set = false;
+}
+
+
 Buffer * BufferView::buffer() const
 {
        return pimpl_->buffer_;
@@ -172,12 +175,6 @@ Change const BufferView::getCurrentChange()
 }
 
 
-void BufferView::beforeChange(LyXText * text)
-{
-       pimpl_->beforeChange(text);
-}
-
-
 void BufferView::savePosition(unsigned int i)
 {
        pimpl_->savePosition(i);
@@ -202,12 +199,6 @@ void BufferView::switchKeyMap()
 }
 
 
-void BufferView::insetUnlock()
-{
-       pimpl_->insetUnlock();
-}
-
-
 int BufferView::workWidth() const
 {
        return pimpl_->workarea().workWidth();
@@ -220,6 +211,18 @@ void BufferView::center()
 }
 
 
+int BufferView::top_y() const
+{
+       return pimpl_->top_y();
+}
+
+
+void BufferView::top_y(int y)
+{
+       pimpl_->top_y(y);
+}
+
+
 string const BufferView::getClipboard() const
 {
        return pimpl_->workarea().getClipboard();
@@ -254,52 +257,14 @@ bool BufferView::insertLyXFile(string const & filen)
        //
        // Moved from lyx_cb.C (Lgb)
 {
-       if (filen.empty())
-               return false;
+       BOOST_ASSERT(!filen.empty());
 
        string const fname = MakeAbsPath(filen);
 
-       // check if file exist
-       FileInfo const fi(fname);
-
-       if (!fi.readable()) {
-               string const file = MakeDisplayPath(fname, 50);
-               string const text =
-                       bformat(_("The specified document\n%1$s\ncould not be read."), file);
-               Alert::error(_("Could not read document"), text);
-               return false;
-       }
-
-       beforeChange(text);
-
-       ifstream ifs(fname.c_str());
-       if (!ifs) {
-               string const file = MakeDisplayPath(fname, 50);
-               string const text =
-                       bformat(_("Could not open the specified document %1$s\n"), file);
-               Alert::error(_("Could not open file"), text);
-               return false;
-       }
-
-       int const c = ifs.peek();
-
-       LyXLex lex(0, 0);
-       lex.setStream(ifs);
-
-       bool res = true;
-
-       text->breakParagraph(buffer()->paragraphs);
-
-       if (c == '#') {
-               // FIXME: huh ? No we won't !
-               lyxerr[Debug::INFO] << "Will insert file with header" << endl;
-               res = buffer()->readFile(lex, fname, ParagraphList::iterator(text->cursor.par()));
-       } else {
-               lyxerr[Debug::INFO] << "Will insert file without header"
-                                   << endl;
-               res = buffer()->readBody(lex, ParagraphList::iterator(text->cursor.par()));
-       }
+       cursor().clearSelection();
+       text()->breakParagraph(buffer()->paragraphs());
 
+       bool res = buffer()->readFile(fname, text()->cursorPar());
        resize();
        return res;
 }
@@ -308,15 +273,15 @@ bool BufferView::insertLyXFile(string const & filen)
 void BufferView::showErrorList(string const & action) const
 {
        if (getErrorList().size()) {
-               string const title = bformat(_("LyX: %1$s errors (%2$s)"), action, buffer()->fileName());
+               string const title = bformat(_("LyX: %1$s errors (%2$s)"),
+                       action, buffer()->fileName());
                owner()->getDialogs().show("errorlist", title);
                pimpl_->errorlist_.clear();
        }
 }
 
 
-ErrorList const &
-BufferView::getErrorList() const
+ErrorList const & BufferView::getErrorList() const
 {
        return pimpl_->errorlist_;
 }
@@ -327,21 +292,16 @@ void BufferView::setCursorFromRow(int row)
        int tmpid = -1;
        int tmppos = -1;
 
-       buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
-
-       ParagraphList::iterator texrowpar;
+       buffer()->texrow().getIdFromRow(row, tmpid, tmppos);
 
-       if (tmpid == -1) {
-               texrowpar = text->ownerParagraphs().begin();
-               tmppos = 0;
-       } else {
-               texrowpar = buffer()->getParFromID(tmpid).pit();
-       }
-       text->setCursor(texrowpar, tmppos);
+       if (tmpid == -1)
+               text()->setCursor(0, 0);
+       else
+               text()->setCursor(buffer()->getParFromID(tmpid).pit(), tmppos);
 }
 
 
-bool BufferView::insertInset(InsetOld * inset, string const & lout)
+bool BufferView::insertInset(InsetBase * inset, string const & lout)
 {
        return pimpl_->insertInset(inset, lout);
 }
@@ -352,11 +312,13 @@ void BufferView::gotoLabel(string const & label)
        for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
             it != buffer()->inset_iterator_end(); ++it) {
                vector<string> labels;
-               it->getLabelList(labels);
+               it->getLabelList(*buffer(), labels);
                if (find(labels.begin(),labels.end(),label) != labels.end()) {
-                       beforeChange(text);
-                       text->setCursor(it.getPar(), it.getPos());
-                       text->selection.cursor = text->cursor;
+                       cursor().clearSelection();
+                       text()->setCursor(
+                               distance(text()->paragraphs().begin(), it.getPar()),
+                               it.getPos());
+                       cursor().resetAnchor();
                        update();
                        return;
                }
@@ -370,8 +332,8 @@ void BufferView::undo()
                return;
 
        owner()->message(_("Undo"));
-       beforeChange(text);
-       if (!textUndo(this))
+       cursor().clearSelection();
+       if (!textUndo(*this))
                owner()->message(_("No further undo information"));
        update();
        switchKeyMap();
@@ -384,289 +346,169 @@ void BufferView::redo()
                return;
 
        owner()->message(_("Redo"));
-       beforeChange(text);
-       if (!textRedo(this))
+       cursor().clearSelection();
+       if (!textRedo(*this))
                owner()->message(_("No further redo information"));
        update();
        switchKeyMap();
 }
 
 
-// these functions are for the spellchecker
-WordLangTuple const BufferView::nextWord(float & value)
-{
-       if (!available()) {
-               value = 1;
-               return WordLangTuple();
-       }
-
-       return text->selectNextWordToSpellcheck(value);
-}
-
-
-void BufferView::selectLastWord()
-{
-       if (!available())
-               return;
-
-       LyXCursor cur = text->selection.cursor;
-       beforeChange(text);
-       text->selection.cursor = cur;
-       text->selectSelectedWord();
-       update();
-}
-
-
-void BufferView::endOfSpellCheck()
-{
-       if (!available()) return;
-
-       beforeChange(text);
-       text->selectSelectedWord();
-       text->clearSelection();
-       update();
-}
-
-
 void BufferView::replaceWord(string const & replacestring)
 {
        if (!available())
                return;
 
-       LyXText * tt = getLyXText();
+       LyXText * t = getLyXText();
 
-       tt->replaceSelectionWithString(replacestring);
-       tt->setSelectionRange(replacestring.length());
+       t->replaceSelectionWithString(replacestring);
+       t->setSelectionRange(replacestring.length());
 
        // Go back so that replacement string is also spellchecked
-       for (string::size_type i = 0; i < replacestring.length() + 1; ++i) 
-               tt->cursorLeft(this);
+       for (string::size_type i = 0; i < replacestring.length() + 1; ++i)
+               t->cursorLeft(this);
 
        // FIXME: should be done through LFUN
        buffer()->markDirty();
-       fitCursor();
        update();
 }
 
 
-bool BufferView::lockInset(UpdatableInset * inset)
+void BufferView::hideCursor()
 {
-       if (!inset)
-               return false;
-       // don't relock if we're already locked
-       if (theLockingInset() == inset)
-               return true;
-       if (!theLockingInset()) {
-               // first check if it's the inset under the cursor we want lock
-               // should be most of the time
-               if (text->cursor.pos() < text->cursor.par()->size()
-                   && text->cursor.par()->getChar(text->cursor.pos()) ==
-                   Paragraph::META_INSET) {
-                       InsetOld * in = text->cursor.par()->getInset(text->cursor.pos());
-                       if (inset == in) {
-                               theLockingInset(inset);
-                               return true;
-                       }
-               }
-               // Then do a deep look of the inset and lock the right one
-               int const id = inset->id();
-               ParagraphList::iterator pit = buffer()->paragraphs.begin();
-               ParagraphList::iterator pend = buffer()->paragraphs.end();
-               for (; pit != pend; ++pit) {
-                       InsetList::iterator it = pit->insetlist.begin();
-                       InsetList::iterator end = pit->insetlist.end();
-                       for (; it != end; ++it) {
-                               if (it->inset == inset) {
-                                       text->setCursorIntern(pit, it->pos);
-                                       theLockingInset(inset);
-                                       return true;
-                               }
-                               if (it->inset->getInsetFromID(id)) {
-                                       text->setCursorIntern(pit, it->pos);
-                                       FuncRequest cmd(this, LFUN_INSET_EDIT, "left");
-                                       it->inset->localDispatch(cmd);
-                                       return theLockingInset()->lockInsetInInset(this, inset);
-                               }
-                       }
-               }
-               return false;
-       }
-       return theLockingInset()->lockInsetInInset(this, inset);
+       screen().hideCursor();
 }
 
 
-bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
+bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 {
-       if (theLockingInset() && available()) {
-               y += text->cursor.iy() + theLockingInset()->insetInInsetY();
-               if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
-                       updateScrollbar();
-                       return true;
-               }
-       }
-       return false;
-}
+       // Check if the label 'from' appears more than once
+       vector<string> labels;
+       buffer()->getLabelList(labels);
 
+       if (lyx::count(labels.begin(), labels.end(), from) > 1)
+               return false;
 
-void BufferView::hideCursor()
-{
-       screen().hideCursor();
+       return pimpl_->ChangeInsets(InsetOld::REF_CODE, from, to);
 }
 
 
-int BufferView::unlockInset(UpdatableInset * inset)
+LyXText * BufferView::getLyXText() const
 {
-       if (!inset)
-               return 0;
-       if (inset && theLockingInset() == inset) {
-               inset->insetUnlock(this);
-               theLockingInset(0);
-               // make sure we update the combo !
-               owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
-               // Tell the paragraph dialog that we changed paragraph
-               dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
-               finishUndo();
-               return 0;
-       } else if (inset && theLockingInset() &&
-                  theLockingInset()->unlockInsetInInset(this, inset)) {
-               // Tell the paragraph dialog that we changed paragraph
-               dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
-               // owner inset has updated the layout combo
-               finishUndo();
-               return 0;
-       }
-       return 1;
+       return cursor().innerText();
 }
 
 
-void BufferView::updateInset()
+Language const * BufferView::getParentLanguage(InsetOld * inset) const
 {
-       pimpl_->updateInset();
+       Paragraph const & par = ownerPar(*buffer(), inset);
+       return par.getFontSettings(buffer()->params(),
+                                  par.getPositionOfInset(inset)).language();
 }
 
 
-bool BufferView::ChangeInsets(InsetOld::Code code,
-                             string const & from, string const & to)
+Encoding const * BufferView::getEncoding() const
 {
-       bool need_update = false;
-       LyXCursor cursor = text->cursor;
-       LyXCursor tmpcursor = cursor;
-       cursor.par(tmpcursor.par());
-       cursor.pos(tmpcursor.pos());
-
-       ParIterator end = buffer()->par_iterator_end();
-       for (ParIterator it = buffer()->par_iterator_begin();
-            it != end; ++it) {
-               bool changed_inset = false;
-               for (InsetList::iterator it2 = it->insetlist.begin();
-                    it2 != it->insetlist.end(); ++it2) {
-                       if (it2->inset->lyxCode() == code) {
-                               InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
-                               if (inset->getContents() == from) {
-                                       inset->setContents(to);
-                                       changed_inset = true;
-                               }
-                       }
-               }
-               if (changed_inset) {
-                       need_update = true;
-
-                       // FIXME
-
-                       // The test it.size()==1 was needed to prevent crashes.
-                       // How to set the cursor corretly when it.size()>1 ??
-                       if (it.size() == 1) {
-                               text->setCursorIntern(it.pit(), 0);
-                               text->redoParagraph(text->cursor.par());
-                       }
-               }
-       }
-       text->setCursorIntern(cursor.par(), cursor.pos());
-       return need_update;
+       LyXText * t = getLyXText();
+       if (!t)
+               return 0;
+       CursorSlice const & cur = cursor().innerTextSlice();
+       return t->getPar(cur.par())->getFont(
+               buffer()->params(), cur.pos(),
+               outerFont(t->getPar(cur.par()), t->paragraphs())
+       ).language()->encoding();
 }
 
 
-bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
+void BufferView::haveSelection(bool sel)
 {
-       // Check if the label 'from' appears more than once
-       vector<string> labels;
-       buffer()->getLabelList(labels);
-
-       if (lyx::count(labels.begin(), labels.end(), from) > 1)
-               return false;
-
-       return ChangeInsets(InsetOld::REF_CODE, from, to);
+       pimpl_->workarea().haveSelection(sel);
 }
 
 
-UpdatableInset * BufferView::theLockingInset() const
+int BufferView::workHeight() const
 {
-       // If NULL is not allowed we should put an Assert here. (Lgb)
-       if (text)
-               return text->the_locking_inset;
-       return 0;
+       return pimpl_->workarea().workHeight();
 }
 
 
-void BufferView::theLockingInset(UpdatableInset * inset)
+void BufferView::updateParagraphDialog()
 {
-       text->the_locking_inset = inset;
+       pimpl_->updateParagraphDialog();
 }
 
 
-LyXText * BufferView::getLyXText() const
+LyXText * BufferView::text() const
 {
-       if (theLockingInset()) {
-               LyXText * txt = theLockingInset()->getLyXText(this, true);
-               if (txt)
-                       return txt;
-       }
-       return text;
+       return pimpl_->buffer_ ? &pimpl_->buffer_->text() : 0;
 }
 
 
-LyXText * BufferView::getParentText(InsetOld * inset) const
+void BufferView::setCursor(ParIterator const & par,
+                          lyx::pos_type pos)
 {
-       if (inset->owner()) {
-               LyXText * txt = inset->getLyXText(this);
-               inset = inset->owner();
-               while (inset && inset->getLyXText(this) == txt)
-                       inset = inset->owner();
-               if (inset)
-                       return inset->getLyXText(this);
-       }
-       return text;
+       LCursor & cur = cursor();
+       cur.reset();
+       ParIterator::PosHolder const & positions = par.positions();
+       int const last = par.size() - 1;
+       for (int i = 0; i < last; ++i)
+               (*positions[i].it)->inset->edit(cur, true);
+       cur.resetAnchor();
+       LyXText * lt = par.text(*buffer());
+       lt->setCursor(par.pit(), pos);
 }
 
 
-Language const * BufferView::getParentLanguage(InsetOld * inset) const
-{
-       LyXText * text = getParentText(inset);
-       return text->cursor.par()->getFontSettings(buffer()->params,
-                                                  text->cursor.pos()).language();
-}
+/*
+if the fitCursor call refers to some point in never-explored-land, then we
+don't have y information in insets there, then we cannot even do an update
+to get it (because we need the y infomation for setting top_y first). So
+this is solved in putSelectionAt with:
 
+- setting top_y to the y of the outerPar (that has good info)
+- calling update
+- calling cursor().updatePos()
+- then call fitCursor()
 
-Encoding const * BufferView::getEncoding() const
+Ab.
+*/
+
+void BufferView::putSelectionAt(PosIterator const & cur,
+                     int length, bool backwards)
 {
-       LyXText * t = getLyXText();
-       if (!t)
-               return 0;
+       ParIterator par(cur);
 
-       LyXCursor const & c = t->cursor;
-       LyXFont const font = c.par()->getFont(buffer()->params, c.pos(),
-                                             outerFont(c.par(), t->ownerParagraphs()));
-       return font.language()->encoding();
+       cursor().clearSelection();
+
+       LyXText * text = par.text(*buffer());
+       setCursor(par, cur.pos());
+       
+       // hack for the chicken and egg problem
+       if (par.inset())
+               top_y(par.outerPar()->y);
+       update();
+       text->setCursor(cur.pit(), cur.pos());
+       cursor().updatePos();
+
+       if (length) {
+               text->setSelectionRange(length);
+               cursor().setSelection();
+               if (backwards)
+                       swap(cursor().cursor_, cursor().anchor_);
+       }
+
+       fitCursor();
+       update();
 }
 
 
-void BufferView::haveSelection(bool sel)
+LCursor & BufferView::cursor()
 {
-       pimpl_->workarea().haveSelection(sel);
+       return pimpl_->cursor_;
 }
 
 
-int BufferView::workHeight() const
+LCursor const & BufferView::cursor() const
 {
-       return pimpl_->workarea().workHeight();
+       return pimpl_->cursor_;
 }