]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView.C
* InsetMathNest.C (handleFont): avoid crash on undo when
[lyx.git] / src / BufferView.C
index fa53dd8cccbae35584a68443ffc1064698abce1b..2ff1ec0a0736a88c10920b725bf23ac2072a96af 100644 (file)
@@ -88,7 +88,6 @@ using support::fileSearch;
 using support::isDirWriteable;
 using support::isFileReadable;
 using support::makeDisplayPath;
-using support::makeAbsPath;
 using support::package;
 
 using std::distance;
@@ -125,7 +124,7 @@ BufferView::BufferView()
        : width_(0), height_(0), buffer_(0), wh_(0),
          cursor_(*this),
          multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
-         intl_(new Intl)
+         intl_(new Intl), last_inset_(0)
 {
        xsel_cache_.set = false;
        intl_->initKeyMapper(lyxrc.use_kbmap);
@@ -302,7 +301,7 @@ void BufferView::resize()
        lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 
        buffer_->text().init(this);
-       update();
+       updateMetrics(false);
        switchKeyMap();
 }
 
@@ -334,7 +333,7 @@ bool BufferView::multiParSel()
 }
 
 
-std::pair<bool, bool> BufferView::update(Update::flags flags)
+bool BufferView::update(Update::flags flags)
 {
        // This is close to a hot-path.
        if (lyxerr.debugging(Debug::DEBUG)) {
@@ -348,7 +347,7 @@ std::pair<bool, bool> BufferView::update(Update::flags flags)
 
        // Check needed to survive LyX startup
        if (!buffer_)
-               return make_pair(false, false);
+               return false;
 
        if (lyxerr.debugging(Debug::WORKAREA)) {
                lyxerr[Debug::WORKAREA] << "BufferView::update" << std::endl;
@@ -363,16 +362,16 @@ std::pair<bool, bool> BufferView::update(Update::flags flags)
 
        // Case when no explicit update is requested.
        if (!flags) {
-               // no need to do anything.
-               return make_pair(false, false);
+               // no need to redraw anything.
+               return false;
        }
 
        if (flags == Update::FitCursor) {
                bool const fit_cursor = fitCursor();
                if (fit_cursor)
                        updateMetrics(false);
-               // tell the frontend to update the screen.
-               return make_pair(fit_cursor, false);
+               // tell the frontend to update the screen if needed.
+               return fit_cursor;
        }
 
        bool full_metrics = flags & Update::Force;
@@ -386,7 +385,7 @@ std::pair<bool, bool> BufferView::update(Update::flags flags)
                updateMetrics(false);
 
        // tell the frontend to update the screen.
-       return make_pair(true, single_par);
+       return true;
 }
 
 
@@ -706,22 +705,22 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                break;
 
        case LFUN_FILE_INSERT:
-               // FIXME: We don't know the encoding of filenames
+               // FIXME UNICODE
                menuInsertLyXFile(to_utf8(cmd.argument()));
                break;
 
        case LFUN_FILE_INSERT_ASCII_PARA:
-               // FIXME: We don't know the encoding of filenames
+               // FIXME UNICODE
                insertAsciiFile(this, to_utf8(cmd.argument()), true);
                break;
 
        case LFUN_FILE_INSERT_ASCII:
-               // FIXME: We don't know the encoding of filenames
+               // FIXME UNICODE
                insertAsciiFile(this, to_utf8(cmd.argument()), false);
                break;
 
        case LFUN_FONT_STATE:
-               cur.message(from_utf8(cur.currentState()));
+               cur.message(cur.currentState());
                break;
 
        case LFUN_BOOKMARK_SAVE:
@@ -1013,21 +1012,20 @@ void BufferView::clearSelection()
 
 void BufferView::workAreaResize(int width, int height)
 {
-       bool const widthChange = width != width_;
-       bool const heightChange = height != height_;
-
+       // A resize is triggered whenever a window gets focus,
+       // because of the shared rows() of a buffer in multiple
+       // buffer views.
+       
        // Update from work area
        width_ = width;
        height_ = height;
 
        if (buffer_)
                resize();
-
-       update();
 }
 
 
-std::pair<bool, bool> BufferView::workAreaDispatch(FuncRequest const & cmd0)
+bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
 {
        //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
 
@@ -1037,7 +1035,7 @@ std::pair<bool, bool> BufferView::workAreaDispatch(FuncRequest const & cmd0)
 
        // E.g. Qt mouse press when no buffer
        if (!buffer_)
-               return make_pair(false, false);
+               return false;
 
        LCursor cur(*this);
        cur.push(buffer_->inset());
@@ -1055,6 +1053,52 @@ std::pair<bool, bool> BufferView::workAreaDispatch(FuncRequest const & cmd0)
        //lyxerr << BOOST_CURRENT_FUNCTION
        //       << " * created temp cursor:" << cur << endl;
 
+       // NOTE: editXY returns the top level inset of nested insets. If you happen
+       // to move from a text (inset=0) to a text inside an inset (e.g. an opened
+       // footnote inset, again inset=0), that inset will not be redrawn.
+       if (cmd.action == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
+               bool need_redraw = false;
+               
+               if (inset != last_inset_) {
+                       if (last_inset_)
+                               need_redraw |= last_inset_->setMouseHover(false);
+                       if (inset)
+                               need_redraw |= inset->setMouseHover(true);
+                       last_inset_ = inset;
+               }
+
+               // if last metrics update was in singlepar mode, WorkArea::redraw() will
+               // not expose the button for redraw. We adjust here the metrics dimension
+               // to enable a full redraw.
+               // FIXME: It is possible to redraw only the area around the button!
+               if (need_redraw && metrics_info_.singlepar) {
+                       // FIXME: It should be possible to redraw only the area around 
+                       // the button by doing this:
+                       //
+                       //metrics_info_.singlepar = false;
+                       //metrics_info_.y1 = ymin of button;
+                       //metrics_info_.y2 = ymax of button;
+                       //
+                       // Unfortunately, rowpainter.C:paintText() does not distinguish
+                       // between background updates and text updates. So we use the hammer
+                       // solution for now. We could also avoid the updateMetrics() below
+                       // by using the first and last pit of the CoordCache. Have a look
+                       // at LyXText::getPitNearY() to see what I mean.
+                       //
+                       //metrics_info_.pit1 = first pit of CoordCache;
+                       //metrics_info_.pit2 = last pit of CoordCache;
+                       //metrics_info_.singlepar = false;
+                       //metrics_info_.y1 = 0;
+                       //metrics_info_.y2 = height_;
+                       //
+                       updateMetrics(false);
+               }
+
+               // This event (moving without mouse click) is not passed further.
+               // This should be changed if it is further utilized.
+               return need_redraw;
+       }
+
        // Put anchor at the same position.
        cur.resetAnchor();
 
@@ -1075,8 +1119,7 @@ std::pair<bool, bool> BufferView::workAreaDispatch(FuncRequest const & cmd0)
        if (cur.result().dispatched() && cur.result().update())
                return update(cur.result().update());
 
-       // When the above and the inner function are fixed, we can do this:
-       return make_pair(false, false);
+       return false;
 }
 
 
@@ -1163,7 +1206,7 @@ void BufferView::setCursor(DocIterator const & dit)
 }
 
 
-void BufferView::mouseSetCursor(LCursor & cur)
+bool BufferView::mouseSetCursor(LCursor & cur)
 {
        BOOST_ASSERT(&cur.bv() == this);
 
@@ -1174,14 +1217,15 @@ void BufferView::mouseSetCursor(LCursor & cur)
 
        // do the dEPM magic if needed
        // FIXME: move this to InsetText::notifyCursorLeaves?
+       bool update = false;
        if (!badcursor && cursor_.inTexted())
-               cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
+               update = cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
 
        cursor_ = cur;
        cursor_.clearSelection();
        cursor_.setTargetX();
        finishUndo();
-
+       return update;
 }
 
 
@@ -1348,7 +1392,7 @@ void BufferView::menuInsertLyXFile(string const & filenm)
                if (buffer_) {
                        string const trypath = buffer_->filePath();
                        // If directory is writeable, use this as default.
-                       if (isDirWriteable(trypath))
+                       if (isDirWriteable(FileName(trypath)))
                                initpath = trypath;
                }