]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView.C
more cursor dispatch
[lyx.git] / src / BufferView.C
index 1dae06d81ef7e0b75c86be7ec4fe4ab274bf23ca..d1ff326a342b1ed739c172f98612c333a29d6fc8 100644 (file)
@@ -3,7 +3,7 @@
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
- * \author Alfredo Braustein
+ * \author Alfredo Braunstein
  * \author Lars Gullik Bjønnes
  * \author John Levon
  * \author André Pönitz
 #include <config.h>
 
 #include "BufferView.h"
+
 #include "buffer.h"
 #include "bufferlist.h"
 #include "BufferView_pimpl.h"
+#include "debug.h"
 #include "funcrequest.h"
 #include "gettext.h"
 #include "iterators.h"
@@ -26,8 +28,9 @@
 #include "lyxtext.h"
 #include "paragraph.h"
 #include "paragraph_funcs.h"
+#include "PosIterator.h"
 #include "texrow.h"
-#include "undo_funcs.h"
+#include "undo.h"
 #include "WordLangTuple.h"
 
 #include "frontends/Alert.h"
 #include "insets/updatableinset.h"
 
 #include "support/filetools.h"
-#include "support/LAssert.h"
 #include "support/lyxalgo.h" // lyx_count
 
+using lyx::support::bformat;
+using lyx::support::MakeAbsPath;
 
-extern BufferList bufferlist;
-
-using namespace lyx::support;
-
+using std::distance;
 using std::find;
+using std::string;
+using std::swap;
 using std::vector;
 
 
+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_;
@@ -166,12 +175,6 @@ Change const BufferView::getCurrentChange()
 }
 
 
-void BufferView::beforeChange(LyXText * text)
-{
-       pimpl_->beforeChange(text);
-}
-
-
 void BufferView::savePosition(unsigned int i)
 {
        pimpl_->savePosition(i);
@@ -196,12 +199,6 @@ void BufferView::switchKeyMap()
 }
 
 
-void BufferView::insetUnlock()
-{
-       pimpl_->insetUnlock();
-}
-
-
 int BufferView::workWidth() const
 {
        return pimpl_->workarea().workWidth();
@@ -260,16 +257,14 @@ bool BufferView::insertLyXFile(string const & filen)
        //
        // Moved from lyx_cb.C (Lgb)
 {
-       Assert(!filen.empty());
+       BOOST_ASSERT(!filen.empty());
 
        string const fname = MakeAbsPath(filen);
 
-       beforeChange(text);
-
-       text->breakParagraph(buffer()->paragraphs());
-
-       bool res = buffer()->readFile(fname, text->cursor.par());
+       cursor().clearSelection();
+       text()->breakParagraph(buffer()->paragraphs());
 
+       bool res = buffer()->readFile(fname, text()->cursorPar());
        resize();
        return res;
 }
@@ -278,15 +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_;
 }
@@ -299,19 +294,14 @@ void BufferView::setCursorFromRow(int row)
 
        buffer()->texrow().getIdFromRow(row, tmpid, tmppos);
 
-       ParagraphList::iterator texrowpar;
-
-       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);
 }
@@ -322,11 +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;
                }
@@ -340,8 +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();
@@ -354,63 +346,27 @@ 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);
+               t->cursorLeft(this);
 
        // FIXME: should be done through LFUN
        buffer()->markDirty();
@@ -418,169 +374,141 @@ void BufferView::replaceWord(string const & replacestring)
 }
 
 
-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.y() + 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(InsetOld const * inset)
+Language const * BufferView::getParentLanguage(InsetOld * inset) const
 {
-       pimpl_->updateInset(inset);
+       Paragraph const & par = ownerPar(*buffer(), inset);
+       return par.getFontSettings(buffer()->params(),
+                                  par.getPositionOfInset(inset)).language();
 }
 
 
-bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
+Encoding const * BufferView::getEncoding() const
 {
-       // Check if the label 'from' appears more than once
-       vector<string> labels;
-       buffer()->getLabelList(labels);
+       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();
+}
 
-       if (lyx::count(labels.begin(), labels.end(), from) > 1)
-               return false;
 
-       return pimpl_->ChangeInsets(InsetOld::REF_CODE, from, to);
+void BufferView::haveSelection(bool sel)
+{
+       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;
 }
 
 
-Language const * BufferView::getParentLanguage(InsetOld * inset) const
+void BufferView::setCursor(ParIterator const & par,
+                          lyx::pos_type pos)
 {
-       Paragraph const & par = ownerPar(*buffer(), inset);
-       return par.getFontSettings(buffer()->params(),
-                                  par.getPositionOfInset(inset)).language();
+       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);
 }
 
 
-Encoding const * BufferView::getEncoding() const
+/*
+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()
+
+Ab.
+*/
+
+void BufferView::putSelectionAt(PosIterator const & cur,
+                     int length, bool backwards)
 {
-       LyXText * t = getLyXText();
-       if (!t)
-               return 0;
+       ParIterator par(cur);
+
+       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_);
+       }
 
-       LyXCursor const & c = t->cursor;
-       LyXFont const font = c.par()->getFont(buffer()->params(), c.pos(),
-                                             outerFont(c.par(), t->ownerParagraphs()));
-       return font.language()->encoding();
+       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_;
 }