10 #include "BufferView_pimpl.h"
12 #include "lyxscreen.h"
16 #include "commandtags.h"
18 #include "minibuffer.h"
20 #include "bufferview_funcs.h"
21 #include "TextCache.h"
22 #include "bufferlist.h"
23 #include "insets/insetbib.h"
25 #include "lyx_gui_misc.h"
28 #include "support/LAssert.h"
29 #include "frontends/Dialogs.h"
31 #ifdef SIGC_CXX_NAMESPACES
40 /* the selection possible is needed, that only motion events are
41 * used, where the bottom press event was on the drawing area too */
42 bool selection_possible = false;
44 extern BufferList bufferlist;
45 extern char ascii_type;
47 extern void sigchldhandler(pid_t pid, int * status);
48 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
54 XSync(fl_get_display(), 0);
59 void SetXtermCursor(Window win)
62 static bool cursor_undefined = true;
63 if (cursor_undefined){
64 cursor = XCreateFontCursor(fl_display, XC_xterm);
66 cursor_undefined = false;
68 XDefineCursor(fl_display, win, cursor);
73 BufferView::Pimpl::Pimpl(BufferView * b, LyXView * o,
74 int xpos, int ypos, int width, int height)
75 : bv_(b), owner_(o), cursor_timeout(400)
78 workarea_ = new WorkArea(bv_, xpos, ypos, width, height);
81 cursor_timeout.timeout.connect(slot(this,
82 &BufferView::Pimpl::cursorToggle));
83 current_scrollbar_value = 0;
84 cursor_timeout.start();
85 workarea_->setFocus();
86 using_xterm_cursor = false;
90 Painter & BufferView::Pimpl::painter()
92 return workarea_->getPainter();
96 void BufferView::Pimpl::buffer(Buffer * b)
98 lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
102 buffer_->delUser(bv_);
104 // Put the old text into the TextCache, but
105 // only if the buffer is still loaded.
106 // Also set the owner of the test to 0
107 // bv_->text->owner(0);
108 textcache.add(buffer_, workarea_->workWidth(), bv_->text);
109 if (lyxerr.debugging())
110 textcache.show(lyxerr, "BufferView::buffer");
115 // Set current buffer
118 if (bufferlist.getState() == BufferList::CLOSING) return;
121 // screen is always deleted when the buffer is changed.
125 // If we are closing the buffer, use the first buffer as current
127 buffer_ = bufferlist.first();
131 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
132 buffer_->addUser(bv_);
133 owner_->getMenus()->showMenus();
134 // If we don't have a text object for this, we make one
135 if (bv_->text == 0) {
136 resizeCurrentBuffer();
141 bv_->text->first = screen_->TopCursorVisible(bv_->text);
143 owner_->getDialogs()->updateBufferDependent();
146 lyxerr[Debug::INFO] << " No Buffer!" << endl;
147 owner_->getMenus()->hideMenus();
151 // Also remove all remaining text's from the testcache.
152 // (there should not be any!) (if there is any it is a
154 if (lyxerr.debugging())
155 textcache.show(lyxerr, "buffer delete all");
158 // should update layoutchoice even if we don't have a buffer.
159 owner_->updateLayoutChoice();
160 owner_->getMiniBuffer()->Init();
161 owner_->updateWindowTitle();
165 void BufferView::Pimpl::resize(int xpos, int ypos, int width, int height)
167 workarea_->resize(xpos, ypos, width, height);
173 void BufferView::Pimpl::resize()
175 // This will resize the buffer. (Asger)
177 resizeCurrentBuffer();
181 void BufferView::Pimpl::redraw()
183 lyxerr[Debug::INFO] << "BufferView::redraw()" << endl;
188 bool BufferView::Pimpl::fitCursor()
190 Assert(screen_); // it is a programming error to call fitCursor
191 // without a valid screen.
192 bool ret = screen_->FitCursor(bv_->text);
193 if (ret) updateScrollbar();
198 void BufferView::Pimpl::redoCurrentBuffer()
200 lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
201 if (buffer_ && bv_->text) {
203 owner_->updateLayoutChoice();
208 int BufferView::Pimpl::resizeCurrentBuffer()
210 lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
212 LyXParagraph * par = 0;
213 LyXParagraph * selstartpar = 0;
214 LyXParagraph * selendpar = 0;
223 owner_->getMiniBuffer()->Set(_("Formatting document..."));
226 par = bv_->text->cursor.par();
227 pos = bv_->text->cursor.pos();
228 selstartpar = bv_->text->sel_start_cursor.par();
229 selstartpos = bv_->text->sel_start_cursor.pos();
230 selendpar = bv_->text->sel_end_cursor.par();
231 selendpos = bv_->text->sel_end_cursor.pos();
232 selection = bv_->text->selection;
233 mark_set = bv_->text->mark_set;
235 bv_->text = new LyXText(bv_);
237 // See if we have a text in TextCache that fits
238 // the new buffer_ with the correct width.
239 bv_->text = textcache.findFit(buffer_, workarea_->workWidth());
241 if (lyxerr.debugging()) {
242 lyxerr << "Found a LyXText that fits:\n";
243 textcache.show(lyxerr, make_pair(buffer_, make_pair(workarea_->workWidth(), bv_->text)));
245 // Set the owner of the newly found text
246 // bv_->text->owner(bv_);
247 if (lyxerr.debugging())
248 textcache.show(lyxerr, "resizeCurrentBuffer");
250 bv_->text = new LyXText(bv_);
256 bv_->text->selection = true;
257 /* at this point just to avoid the Delete-Empty-Paragraph
258 * Mechanism when setting the cursor */
259 bv_->text->mark_set = mark_set;
261 bv_->text->SetCursor(bv_, selstartpar, selstartpos);
262 bv_->text->sel_cursor = bv_->text->cursor;
263 bv_->text->SetCursor(bv_, selendpar, selendpos);
264 bv_->text->SetSelection();
265 bv_->text->SetCursor(bv_, par, pos);
267 bv_->text->SetCursor(bv_, par, pos);
268 bv_->text->sel_cursor = bv_->text->cursor;
269 bv_->text->selection = false;
272 bv_->text->first = screen_->TopCursorVisible(bv_->text);
273 /* this will scroll the
274 * screen such that the
279 owner_->getMiniBuffer()->Init();
283 // Now if the title form still exist kill it
290 void BufferView::Pimpl::gotoError()
295 screen_->HideCursor();
297 update(BufferView::SELECT|BufferView::FITCUR);
300 if (!bv_->text->GotoNextError(bv_)) {
301 if (bv_->text->cursor.pos()
302 || bv_->text->cursor.par() != bv_->text->FirstParagraph()) {
303 tmp = bv_->text->cursor;
304 bv_->text->cursor.par(bv_->text->FirstParagraph());
305 bv_->text->cursor.pos(0);
306 if (!bv_->text->GotoNextError(bv_)) {
307 bv_->text->cursor = tmp;
308 owner_->getMiniBuffer()
309 ->Set(_("No more errors"));
313 owner_->getMiniBuffer()->Set(_("No more errors"));
317 update(BufferView::SELECT|BufferView::FITCUR);
318 bv_->text->sel_cursor = bv_->text->cursor;
322 void BufferView::Pimpl::updateScreen()
324 // Regenerate the screen.
326 screen_ = new LyXScreen(*workarea_);
330 void BufferView::Pimpl::updateScrollbar()
332 /* If the text is smaller than the working area, the scrollbar
333 * maximum must be the working area height. No scrolling will
337 workarea_->setScrollbar(0, 1.0);
341 static unsigned long max2 = 0;
342 static unsigned long height2 = 0;
344 unsigned long cbth = 0;
348 cbth = bv_->text->height;
349 cbsf = bv_->text->first;
352 // check if anything has changed.
354 height2 == workarea_->height() &&
355 current_scrollbar_value == cbsf)
358 height2 = workarea_->height();
359 current_scrollbar_value = cbsf;
361 if (cbth <= height2) { // text is smaller than screen
362 workarea_->setScrollbar(0, 1.0); // right?
366 long maximum_height = workarea_->height() * 3 / 4 + cbth;
370 double hfloat = workarea_->height();
371 double maxfloat = maximum_height;
373 float slider_size = 0.0;
374 int slider_value = value;
376 workarea_->setScrollbarBounds(0, bv_->text->height - workarea_->height());
377 double lineh = bv_->text->DefaultHeight();
378 workarea_->setScrollbarIncrements(lineh);
379 if (maxfloat > 0.0) {
380 if ((hfloat / maxfloat) * float(height2) < 3)
381 slider_size = 3.0/float(height2);
383 slider_size = hfloat / maxfloat;
385 slider_size = hfloat;
387 workarea_->setScrollbar(slider_value, slider_size / workarea_->height());
391 // Callback for scrollbar slider
392 void BufferView::Pimpl::scrollCB(double value)
394 extern bool cursor_follows_scrollbar;
396 if (buffer_ == 0) return;
398 current_scrollbar_value = long(value);
399 if (current_scrollbar_value < 0)
400 current_scrollbar_value = 0;
405 screen_->Draw(bv_->text, current_scrollbar_value);
407 if (cursor_follows_scrollbar) {
408 LyXText * vbt = bv_->text;
409 unsigned int height = vbt->DefaultHeight();
411 if (vbt->cursor.y() < bv_->text->first + height) {
412 vbt->SetCursorFromCoordinates(bv_, 0,
415 } else if (vbt->cursor.y() >
416 bv_->text->first + workarea_->height() - height) {
417 vbt->SetCursorFromCoordinates(bv_, 0,
419 workarea_->height() -
427 int BufferView::Pimpl::scrollUp(long time)
429 if (buffer_ == 0) return 0;
430 if (!screen_) return 0;
432 double value = workarea_->getScrollbarValue();
434 if (value == 0) return 0;
436 float add_value = (bv_->text->DefaultHeight()
437 + float(time) * float(time) * 0.125);
439 if (add_value > workarea_->height())
440 add_value = float(workarea_->height() -
441 bv_->text->DefaultHeight());
448 workarea_->setScrollbarValue(value);
450 bv_->scrollCB(value);
455 int BufferView::Pimpl::scrollDown(long time)
457 if (buffer_ == 0) return 0;
458 if (!screen_) return 0;
460 double value= workarea_->getScrollbarValue();
461 pair<float, float> p = workarea_->getScrollbarBounds();
462 double max = p.second;
464 if (value == max) return 0;
466 float add_value = (bv_->text->DefaultHeight()
467 + float(time) * float(time) * 0.125);
469 if (add_value > workarea_->height())
470 add_value = float(workarea_->height() -
471 bv_->text->DefaultHeight());
478 workarea_->setScrollbarValue(value);
480 bv_->scrollCB(value);
485 void BufferView::Pimpl::workAreaMotionNotify(int x, int y, unsigned int state)
487 // Only use motion with button 1
488 if (!(state & Button1MotionMask))
491 if (buffer_ == 0 || !screen_) return;
493 // Check for inset locking
494 if (bv_->the_locking_inset) {
495 LyXCursor cursor = bv_->text->cursor;
496 bv_->the_locking_inset->
497 InsetMotionNotify(bv_,
499 y - cursor.y() + bv_->text->first,
504 /* The selection possible is needed, that only motion events are
505 * used, where the bottom press event was on the drawing area too */
506 if (selection_possible) {
507 screen_->HideCursor();
509 bv_->text->SetCursorFromCoordinates(bv_, x, y + bv_->text->first);
511 if (!bv_->text->selection)
512 update(BufferView::UPDATE); // Maybe an empty line was deleted
514 bv_->text->SetSelection();
515 screen_->ToggleToggle(bv_->text);
517 screen_->ShowCursor(bv_->text);
523 // Single-click on work area
524 void BufferView::Pimpl::workAreaButtonPress(int xpos, int ypos,
530 if (buffer_ == 0 || !screen_) return;
532 Inset * inset_hit = checkInsetHit(bv_->text, xpos, ypos, button);
534 // ok ok, this is a hack.
535 if (button == 4 || button == 5) {
538 scrollUp(lyxrc.wheel_jump); // default 100, set in lyxrc
541 scrollDown(lyxrc.wheel_jump);
546 if (bv_->the_locking_inset) {
547 // We are in inset locking mode
549 /* Check whether the inset was hit. If not reset mode,
550 otherwise give the event to the inset */
551 if (inset_hit == bv_->the_locking_inset) {
552 bv_->the_locking_inset->
553 InsetButtonPress(bv_,
558 bv_->unlockInset(bv_->the_locking_inset);
563 selection_possible = true;
564 screen_->HideCursor();
567 // Right button mouse click on a table
569 (bv_->text->cursor.par()->table ||
570 bv_->text->MouseHitInTable(bv_, xpos, ypos + bv_->text->first))) {
571 // Set the cursor to the press-position
572 bv_->text->SetCursorFromCoordinates(bv_, xpos, ypos + bv_->text->first);
575 // Only show the table popup if the hit is in
577 if (!bv_->text->HitInTable(bv_,
578 bv_->text->cursor.row(), xpos))
581 // Hit above or below the table?
583 if (!bv_->text->selection) {
584 screen_->ToggleSelection(bv_->text);
585 bv_->text->ClearSelection();
586 bv_->text->FullRebreak(bv_);
587 screen_->Update(bv_->text);
590 // Popup table popup when on a table.
591 // This is obviously temporary, since we
592 // should be able to popup various
593 // context-sensitive-menus with the
594 // the right mouse. So this should be done more
595 // general in the future. Matthias.
596 selection_possible = false;
598 ->Dispatch(LFUN_LAYOUT_TABLE,
605 int screen_first = bv_->text->first;
607 // Middle button press pastes if we have a selection
608 bool paste_internally = false;
610 && bv_->text->selection) {
611 owner_->getLyXFunc()->Dispatch(LFUN_COPY);
612 paste_internally = true;
615 // Clear the selection
616 screen_->ToggleSelection(bv_->text);
617 bv_->text->ClearSelection();
618 bv_->text->FullRebreak(bv_);
619 screen_->Update(bv_->text);
622 // Single left click in math inset?
623 if ((inset_hit != 0) &&
624 (inset_hit->Editable()==Inset::HIGHLY_EDITABLE)) {
625 // Highly editable inset, like math
626 UpdatableInset * inset = static_cast<UpdatableInset *>(inset_hit);
627 selection_possible = false;
628 owner_->updateLayoutChoice();
629 owner_->getMiniBuffer()->Set(inset->EditMessage());
630 inset->InsetButtonPress(bv_, xpos, ypos, button);
631 inset->Edit(bv_, xpos, ypos, button);
635 // Right click on a footnote flag opens float menu
637 selection_possible = false;
641 if (!inset_hit) // otherwise it was already set in checkInsetHit(...)
642 bv_->text->SetCursorFromCoordinates(bv_, xpos, ypos + screen_first);
643 bv_->text->FinishUndo();
644 bv_->text->sel_cursor = bv_->text->cursor;
645 bv_->text->cursor.x_fix(bv_->text->cursor.x());
647 owner_->updateLayoutChoice();
649 selection_possible = false;
652 // Insert primary selection with middle mouse
653 // if there is a local selection in the current buffer,
656 if (paste_internally)
657 owner_->getLyXFunc()->Dispatch(LFUN_PASTE);
659 owner_->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
661 selection_possible = false;
667 void BufferView::Pimpl::doubleClick(int /*x*/, int /*y*/, unsigned int button)
670 if (buffer_ && !bv_->the_locking_inset) {
671 if (screen_ && button == 1) {
672 screen_->HideCursor();
673 screen_->ToggleSelection(bv_->text);
674 bv_->text->SelectWord(bv_);
675 screen_->ToggleSelection(bv_->text, false);
676 /* This will fit the cursor on the screen
678 update(BufferView::SELECT|BufferView::FITCUR);
684 void BufferView::Pimpl::tripleClick(int /*x*/, int /*y*/, unsigned int button)
687 if (buffer_ && screen_ && button == 1) {
688 screen_->HideCursor();
689 screen_->ToggleSelection(bv_->text);
690 bv_->text->CursorHome(bv_);
691 bv_->text->sel_cursor = bv_->text->cursor;
692 bv_->text->CursorEnd(bv_);
693 bv_->text->SetSelection();
694 screen_->ToggleSelection(bv_->text, false);
695 /* This will fit the cursor on the screen
697 update(BufferView::SELECT|BufferView::FITCUR);
702 void BufferView::Pimpl::enterView()
704 if (active() && available()) {
705 SetXtermCursor(workarea_->getWin());
706 using_xterm_cursor = true;
711 void BufferView::Pimpl::leaveView()
713 if (using_xterm_cursor) {
714 XUndefineCursor(fl_display, workarea_->getWin());
715 using_xterm_cursor = false;
720 void BufferView::Pimpl::workAreaButtonRelease(int x, int y,
723 if (buffer_ == 0 || screen_ == 0) return;
725 // If we hit an inset, we have the inset coordinates in these
726 // and inset_hit points to the inset. If we do not hit an
727 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
728 Inset * inset_hit = checkInsetHit(bv_->text, x, y, button);
730 if (bv_->the_locking_inset) {
731 // We are in inset locking mode.
733 /* LyX does a kind of work-area grabbing for insets.
734 Only a ButtonPress Event outside the inset will
735 force a InsetUnlock. */
736 bv_->the_locking_inset->
737 InsetButtonRelease(bv_, x, y, button);
741 selection_possible = false;
743 if (bv_->text->cursor.par()->table) {
744 int cell = bv_->text->
745 NumberOfCell(bv_->text->cursor.par(),
746 bv_->text->cursor.pos());
747 if (bv_->text->cursor.par()->table->IsContRow(cell) &&
748 bv_->text->cursor.par()->table->
749 CellHasContRow(bv_->text->cursor.par()->table->
750 GetCellAbove(cell))<0) {
751 bv_->text->CursorUp(bv_);
756 if (button >= 2) return;
759 owner_->getMiniBuffer()->Set(CurrentState(bv_));
761 // Did we hit an editable inset?
762 if (inset_hit != 0) {
763 // Inset like error, notes and figures
764 selection_possible = false;
766 // CHECK fix this proper in 0.13
768 // Following a ref shouldn't issue
769 // a push on the undo-stack
770 // anylonger, now that we have
771 // keybindings for following
772 // references and returning from
773 // references. IMHO though, it
774 // should be the inset's own business
775 // to push or not push on the undo
776 // stack. They don't *have* to
777 // alter the document...
779 // ...or maybe the SetCursorParUndo()
780 // below isn't necessary at all anylonger?
781 if (inset_hit->LyxCode() == Inset::REF_CODE) {
782 bv_->text->SetCursorParUndo(bv_->buffer());
785 owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
786 if (inset_hit->Editable()==Inset::HIGHLY_EDITABLE) {
787 // Highly editable inset, like math
788 UpdatableInset *inset = (UpdatableInset *)inset_hit;
789 inset->InsetButtonRelease(bv_, x, y, button);
791 inset_hit->InsetButtonRelease(bv_, x, y, button);
792 inset_hit->Edit(bv_, x, y, button);
797 // check whether we want to open a float
801 if (bv_->text->cursor.pos() <
802 bv_->text->cursor.par()->Last()) {
803 c = bv_->text->cursor.par()->
804 GetChar(bv_->text->cursor.pos());
806 if (c == LyXParagraph::META_FOOTNOTE
807 || c == LyXParagraph::META_MARGIN
808 || c == LyXParagraph::META_FIG
809 || c == LyXParagraph::META_TAB
810 || c == LyXParagraph::META_WIDE_FIG
811 || c == LyXParagraph::META_WIDE_TAB
812 || c == LyXParagraph::META_ALGORITHM){
814 } else if (bv_->text->cursor.pos() - 1 >= 0) {
815 c = bv_->text->cursor.par()->
816 GetChar(bv_->text->cursor.pos() - 1);
817 if (c == LyXParagraph::META_FOOTNOTE
818 || c == LyXParagraph::META_MARGIN
819 || c == LyXParagraph::META_FIG
820 || c == LyXParagraph::META_TAB
821 || c == LyXParagraph::META_WIDE_FIG
822 || c == LyXParagraph::META_WIDE_TAB
823 || c == LyXParagraph::META_ALGORITHM){
824 // We are one step too far to the right
825 bv_->text->CursorLeft(bv_);
831 selection_possible = false;
836 // Do we want to close a float? (click on the float-label)
837 if (bv_->text->cursor.row()->par()->footnoteflag ==
838 LyXParagraph::OPEN_FOOTNOTE
839 && bv_->text->cursor.row()->previous() &&
840 bv_->text->cursor.row()->previous()->par()->
841 footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
842 LyXFont font(LyXFont::ALL_SANE);
843 font.setSize(LyXFont::SIZE_FOOTNOTE);
845 int box_x = 20; // LYX_PAPER_MARGIN;
846 box_x += lyxfont::width(" wide-tab ", font);
848 unsigned int screen_first = bv_->text->first;
851 && y + screen_first > bv_->text->cursor.y() -
852 bv_->text->cursor.row()->baseline()
853 && y + screen_first < bv_->text->cursor.y() -
854 bv_->text->cursor.row()->baseline()
855 + lyxfont::maxAscent(font) * 1.2 + lyxfont::maxDescent(font) * 1.2) {
857 selection_possible = false;
862 // Maybe we want to edit a bibitem ale970302
863 if (bv_->text->cursor.par()->bibkey && x < 20 +
864 bibitemMaxWidth(bv_, textclasslist.
866 params.textclass).defaultfont())) {
867 bv_->text->cursor.par()->bibkey->Edit(bv_, 0, 0, 0);
875 * Returns an inset if inset was hit. 0 otherwise.
876 * If hit, the coordinates are changed relative to the inset.
877 * Otherwise coordinates are not changed, and false is returned.
879 Inset * BufferView::Pimpl::checkInsetHit(LyXText * text, int & x, int & y,
880 unsigned int /* button */)
885 unsigned int y_tmp = y + text->first;
888 text->SetCursorFromCoordinates(bv_, cursor, x, y_tmp);
889 #if 0 // Are you planning to use this Jürgen? (Lgb)
890 bool move_cursor = ((cursor.par != text->cursor.par) ||
891 (cursor.pos != text->cursor.pos()));
893 if (cursor.pos() < cursor.par()->Last()
894 && cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET
895 && cursor.par()->GetInset(cursor.pos())
896 && cursor.par()->GetInset(cursor.pos())->Editable()) {
898 // Check whether the inset really was hit
899 Inset * tmpinset = cursor.par()->GetInset(cursor.pos());
900 LyXFont font = text->GetFont(bv_->buffer(),
901 cursor.par(), cursor.pos());
902 bool is_rtl = font.isVisibleRightToLeft();
906 start_x = cursor.x() - tmpinset->width(bv_, font);
909 start_x = cursor.x();
910 end_x = cursor.x() + tmpinset->width(bv_, font);
913 if (x > start_x && x < end_x
914 && y_tmp > cursor.y() - tmpinset->ascent(bv_, font)
915 && y_tmp < cursor.y() + tmpinset->descent(bv_, font)) {
917 if (move_cursor && (tmpinset != bv_->the_locking_inset))
919 text->SetCursor(bv_, cursor.par(),cursor.pos(),true);
921 // The origin of an inset is on the baseline
922 y = y_tmp - (text->cursor.y());
927 if ((cursor.pos() - 1 >= 0) &&
928 (cursor.par()->GetChar(cursor.pos()-1) == LyXParagraph::META_INSET) &&
929 (cursor.par()->GetInset(cursor.pos() - 1)) &&
930 (cursor.par()->GetInset(cursor.pos() - 1)->Editable())) {
931 Inset * tmpinset = cursor.par()->GetInset(cursor.pos()-1);
932 LyXFont font = text->GetFont(bv_->buffer(), cursor.par(),
934 bool is_rtl = font.isVisibleRightToLeft();
938 start_x = cursor.x() - tmpinset->width(bv_, font);
941 start_x = cursor.x();
942 end_x = cursor.x() + tmpinset->width(bv_, font);
944 if (x > start_x && x < end_x
945 && y_tmp > cursor.y() - tmpinset->ascent(bv_, font)
946 && y_tmp < cursor.y() + tmpinset->descent(bv_, font)) {
948 if (move_cursor && (tmpinset != bv_->the_locking_inset))
950 text->SetCursor(bv_, cursor.par(),cursor.pos()-1,true);
952 // The origin of an inset is on the baseline
953 y = y_tmp - (text->cursor.y());
961 void BufferView::Pimpl::workAreaExpose()
963 // this is a hack to ensure that we only call this through
964 // BufferView::redraw().
969 static int work_area_width = 0;
970 static unsigned int work_area_height = 0;
972 bool widthChange = workarea_->workWidth() != work_area_width;
973 bool heightChange = workarea_->height() != work_area_height;
975 // update from work area
976 work_area_width = workarea_->workWidth();
977 work_area_height = workarea_->height();
980 // All buffers need a resize
983 // Remove all texts from the textcache
984 // This is not _really_ what we want to do. What
985 // we really want to do is to delete in textcache
986 // that does not have a BufferView with matching
987 // width, but as long as we have only one BufferView
988 // deleting all gives the same result.
989 if (lyxerr.debugging())
990 textcache.show(lyxerr, "Expose delete all");
992 } else if (heightChange) {
993 // Rebuild image of current screen
995 // fitCursor() ensures we don't jump back
996 // to the start of the document on vertical
1000 // The main window size has changed, repaint most stuff
1002 // ...including the minibuffer
1003 owner_->getMiniBuffer()->Init();
1005 } else if (screen_) screen_->Redraw(bv_->text);
1007 // Grey box when we don't have a buffer
1008 workarea_->greyOut();
1011 // always make sure that the scrollbar is sane.
1013 owner_->updateLayoutChoice();
1018 void BufferView::Pimpl::update()
1020 if (screen_) screen_->Update(bv_->text);
1023 // Values used when calling update:
1025 // -2 - update, move sel_cursor if selection, fitcursor
1026 // -1 - update, move sel_cursor if selection, fitcursor, mark dirty
1027 // 0 - update, move sel_cursor if selection, fitcursor
1028 // 1 - update, move sel_cursor if selection, fitcursor, mark dirty
1029 // 3 - update, move sel_cursor if selection
1032 // a simple redraw of the parts that need refresh
1034 // move sel_cursor if selection -
1035 // the text's sel_cursor is moved if there is selection is progress
1038 // fitCursor() is called and the scrollbar updated
1041 // the buffer is marked dirty.
1050 // UPDATE_ONLY = UPDATE;
1051 // UPDATE_SELECT = UPDATE | SELECT;
1052 // UPDATE_SELECT_MOVE = UPDATE | SELECT | FITCUR;
1053 // UPDATE_SELECT_MOVE_AFTER_CHANGE = UPDATE | SELECT | FITCUR | CHANGE;
1055 // update(-3) -> update(0) -> update(0) -> update(UPDATE)
1056 // update(-2) -> update(1 + 2) -> update(3) -> update(SELECT|FITCUR)
1057 // update(-1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1058 // update(1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1059 // update(3) -> update(1) -> update(1) -> update(SELECT)
1061 void BufferView::Pimpl::update(BufferView::UpdateCodes f)
1063 owner_->updateLayoutChoice();
1065 if (!bv_->text->selection && (f & SELECT)) {
1066 bv_->text->sel_cursor = bv_->text->cursor;
1069 bv_->text->FullRebreak(bv_);
1078 if (buffer_->isLyxClean()) {
1079 buffer_->markDirty();
1080 owner_->getMiniBuffer()->setTimer(4);
1082 buffer_->markDirty();
1088 // Callback for cursor timer
1089 void BufferView::Pimpl::cursorToggle()
1091 // Quite a nice place for asyncron Inset updating, isn't it?
1092 // Actually no! This is run even if no buffer exist... so (Lgb)
1094 goto set_timer_and_return;
1098 // On my quest to solve the gs render hangups I am now
1099 // disabling the SIGHUP completely, and will do a wait
1100 // now and then instead. If the guess that xforms somehow
1101 // destroys something is true, this is likely (hopefully)
1102 // to solve the problem...at least I hope so. Lgb
1104 // ...Ok this seems to work...at least it does not make things
1105 // worse so far. However I still see gs processes that hangs.
1106 // I would really like to know _why_ they are hanging. Anyway
1107 // the solution without the SIGCHLD handler seems to be easier
1110 // When attaching gdb to a a running gs that hangs it shows
1111 // that it is waiting for input(?) Is it possible for us to
1112 // provide that input somehow? Or figure what it is expecing
1115 // One solution is to, after some time, look if there are some
1116 // old gs processes still running and if there are: kill them
1119 // Another solution is to provide the user an option to rerender
1120 // a picture. This would, for the picture in question, check if
1121 // there is a gs running for it, if so kill it, and start a new
1122 // rendering process.
1124 // these comments posted to lyx@via
1127 int pid = waitpid(static_cast<pid_t>(0), &status, WNOHANG);
1128 if (pid == -1) // error find out what is wrong
1129 ; // ignore it for now.
1131 sigchldhandler(pid, &status);
1134 updatelist.update(bv_);
1137 goto set_timer_and_return;
1140 if (!bv_->the_locking_inset) {
1141 screen_->CursorToggle(bv_->text);
1143 bv_->the_locking_inset->
1144 ToggleInsetCursor(bv_);
1147 set_timer_and_return:
1148 cursor_timeout.restart();
1153 void BufferView::Pimpl::cursorPrevious()
1155 if (!bv_->text->cursor.row()->previous()) return;
1157 long y = bv_->text->first;
1158 Row * cursorrow = bv_->text->cursor.row();
1159 bv_->text->SetCursorFromCoordinates(bv_, bv_->text->cursor.x_fix(), y);
1160 bv_->text->FinishUndo();
1161 // This is to allow jumping over large insets
1162 if ((cursorrow == bv_->text->cursor.row()))
1163 bv_->text->CursorUp(bv_);
1165 if (bv_->text->cursor.row()->height() < workarea_->height())
1166 screen_->Draw(bv_->text,
1167 bv_->text->cursor.y()
1168 - bv_->text->cursor.row()->baseline()
1169 + bv_->text->cursor.row()->height()
1170 - workarea_->height() + 1 );
1175 void BufferView::Pimpl::cursorNext()
1177 if (!bv_->text->cursor.row()->next()) return;
1179 long y = bv_->text->first;
1180 bv_->text->GetRowNearY(y);
1181 Row * cursorrow = bv_->text->cursor.row();
1182 bv_->text->SetCursorFromCoordinates(bv_, bv_->text->cursor.x_fix(), y
1183 + workarea_->height());
1184 bv_->text->FinishUndo();
1185 // This is to allow jumping over large insets
1186 if ((cursorrow == bv_->text->cursor.row()))
1187 bv_->text->CursorDown(bv_);
1189 if (bv_->text->cursor.row()->height() < workarea_->height())
1190 screen_->Draw(bv_->text, bv_->text->cursor.y()
1191 - bv_->text->cursor.row()->baseline());
1196 bool BufferView::Pimpl::available() const
1198 if (buffer_ && bv_->text) return true;
1203 void BufferView::Pimpl::beforeChange()
1206 bv_->text->ClearSelection();
1209 //owner_->update_timeout.stop();
1213 void BufferView::Pimpl::savePosition()
1215 backstack.push(buffer_->fileName(),
1216 bv_->text->cursor.x(),
1217 bv_->text->cursor.y());
1221 void BufferView::Pimpl::restorePosition()
1223 if (backstack.empty()) return;
1226 string fname = backstack.pop(&x, &y);
1229 Buffer * b = bufferlist.exists(fname) ?
1230 bufferlist.getBuffer(fname) :
1231 bufferlist.loadLyXFile(fname); // don't ask, just load it
1233 bv_->text->SetCursorFromCoordinates(bv_, x, y);
1234 update(BufferView::SELECT|BufferView::FITCUR);
1238 bool BufferView::Pimpl::NoSavedPositions()
1240 return backstack.empty();
1244 void BufferView::Pimpl::setState()
1246 if (!lyxrc.rtl_support)
1249 if (bv_->text->real_current_font.isRightToLeft() &&
1250 bv_->text->real_current_font.latex() != LyXFont::ON) {
1251 if (owner_->getIntl()->primarykeymap)
1252 owner_->getIntl()->KeyMapSec();
1254 if (!owner_->getIntl()->primarykeymap)
1255 owner_->getIntl()->KeyMapPrim();
1260 void BufferView::Pimpl::insetSleep()
1262 if (bv_->the_locking_inset && !bv_->inset_slept) {
1263 bv_->the_locking_inset->GetCursorPos(bv_, bv_->slx, bv_->sly);
1264 bv_->the_locking_inset->InsetUnlock(bv_);
1265 bv_->inset_slept = true;
1270 void BufferView::Pimpl::insetWakeup()
1272 if (bv_->the_locking_inset && bv_->inset_slept) {
1273 bv_->the_locking_inset->Edit(bv_, bv_->slx, bv_->sly, 0);
1274 bv_->inset_slept = false;
1279 void BufferView::Pimpl::insetUnlock()
1281 if (bv_->the_locking_inset) {
1282 if (!bv_->inset_slept) bv_->the_locking_inset->InsetUnlock(bv_);
1283 bv_->the_locking_inset = 0;
1284 bv_->text->FinishUndo();
1285 bv_->inset_slept = false;
1290 bool BufferView::Pimpl::focus() const
1292 return workarea_->hasFocus();
1296 void BufferView::Pimpl::focus(bool f)
1298 if (f) workarea_->setFocus();
1302 bool BufferView::Pimpl::active() const
1304 return workarea_->active();
1308 bool BufferView::Pimpl::belowMouse() const
1310 return workarea_->belowMouse();
1314 void BufferView::Pimpl::showCursor()
1317 screen_->ShowCursor(bv_->text);
1321 void BufferView::Pimpl::hideCursor()
1324 screen_->HideCursor();
1328 void BufferView::Pimpl::toggleSelection(bool b)
1331 screen_->ToggleSelection(bv_->text, b);
1335 void BufferView::Pimpl::toggleToggle()
1338 screen_->ToggleToggle(bv_->text);
1342 void BufferView::Pimpl::center()
1345 if (bv_->text->cursor.y() > workarea_->height() / 2) {
1346 screen_->Draw(bv_->text, bv_->text->cursor.y() - workarea_->height() / 2);
1348 screen_->Draw(bv_->text, 0);
1350 update(BufferView::SELECT|BufferView::FITCUR);
1355 void BufferView::Pimpl::pasteClipboard(bool asPara)
1357 if (buffer_ == 0) return;
1359 screen_->HideCursor();
1360 bv_->beforeChange();
1362 string clip(workarea_->getClipboard());
1364 if (clip.empty()) return;
1367 bv_->text->InsertStringB(bv_, clip);
1369 bv_->text->InsertStringA(bv_, clip);
1371 update(BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1375 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
1377 workarea_->putClipboard(stuff);