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"
24 #include "lyx_gui_misc.h"
27 #include "support/LAssert.h"
28 #include "frontends/Dialogs.h"
30 #ifdef SIGC_CXX_NAMESPACES
39 /* the selection possible is needed, that only motion events are
40 * used, where the bottom press event was on the drawing area too */
41 bool selection_possible = false;
43 extern BufferList bufferlist;
44 extern char ascii_type;
46 extern "C" void TimerCB(FL_OBJECT *, long);
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_get_display(), XC_xterm);
65 XFlush(fl_get_display());
66 cursor_undefined = false;
68 XDefineCursor(fl_get_display(), win, cursor);
69 XFlush(fl_get_display());
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)
79 workarea_ = new WorkArea(bv_, xpos, ypos, width, height);
81 workarea_ = new WorkArea(xpos, ypos, width, height);
84 workarea_->scrollCB.connect(slot(this, &BufferView::Pimpl::scrollCB));
85 workarea_->workAreaExpose
86 .connect(slot(this, &BufferView::Pimpl::workAreaExpose));
87 workarea_->workAreaEnter
88 .connect(slot(this, &BufferView::Pimpl::enterView));
89 workarea_->workAreaLeave
90 .connect(slot(this, &BufferView::Pimpl::leaveView));
91 workarea_->workAreaButtonPress
92 .connect(slot(this, &BufferView::Pimpl::workAreaButtonPress));
93 workarea_->workAreaButtonRelease
95 &BufferView::Pimpl::workAreaButtonRelease));
96 workarea_->workAreaMotionNotify
97 .connect(slot(this, &BufferView::Pimpl::workAreaMotionNotify));
98 workarea_->workAreaDoubleClick
99 .connect(slot(this, &BufferView::Pimpl::doubleClick));
100 workarea_->workAreaTripleClick
101 .connect(slot(this, &BufferView::Pimpl::tripleClick));
102 workarea_->workAreaKeyPress
103 .connect(slot(this, &BufferView::Pimpl::workAreaKeyPress));
107 cursor_timeout.timeout.connect(slot(this,
108 &BufferView::Pimpl::cursorToggle));
109 current_scrollbar_value = 0;
110 cursor_timeout.start();
111 workarea_->setFocus();
112 using_xterm_cursor = false;
116 Painter & BufferView::Pimpl::painter()
118 return workarea_->getPainter();
122 void BufferView::Pimpl::buffer(Buffer * b)
124 lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
128 buffer_->delUser(bv_);
130 // Put the old text into the TextCache, but
131 // only if the buffer is still loaded.
132 // Also set the owner of the test to 0
133 // bv_->text->owner(0);
134 textcache.add(buffer_, workarea_->workWidth(), bv_->text);
135 if (lyxerr.debugging())
136 textcache.show(lyxerr, "BufferView::buffer");
141 // Set current buffer
144 if (bufferlist.getState() == BufferList::CLOSING) return;
147 // screen is always deleted when the buffer is changed.
151 // If we are closing the buffer, use the first buffer as current
153 buffer_ = bufferlist.first();
157 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
158 buffer_->addUser(bv_);
159 // If we don't have a text object for this, we make one
160 if (bv_->text == 0) {
161 resizeCurrentBuffer();
166 bv_->text->first = screen_->TopCursorVisible(bv_->text);
167 owner_->updateMenubar();
168 owner_->updateToolbar();
169 // Similarly, buffer-dependent dialogs should be updated or
170 // hidden. This should go here because some dialogs (eg ToC)
171 // require bv_->text.
172 owner_->getDialogs()->updateBufferDependent(true);
176 lyxerr[Debug::INFO] << " No Buffer!" << endl;
177 owner_->updateMenubar();
178 owner_->updateToolbar();
179 owner_->getDialogs()->hideBufferDependent();
183 // Also remove all remaining text's from the testcache.
184 // (there should not be any!) (if there is any it is a
186 if (lyxerr.debugging())
187 textcache.show(lyxerr, "buffer delete all");
190 // should update layoutchoice even if we don't have a buffer.
191 owner_->updateLayoutChoice();
192 owner_->getMiniBuffer()->Init();
193 owner_->updateWindowTitle();
197 void BufferView::Pimpl::resize(int xpos, int ypos, int width, int height)
199 workarea_->resize(xpos, ypos, width, height);
205 void BufferView::Pimpl::resize()
207 // This will resize the buffer. (Asger)
209 resizeCurrentBuffer();
213 void BufferView::Pimpl::redraw()
215 lyxerr[Debug::INFO] << "BufferView::redraw()" << endl;
220 bool BufferView::Pimpl::fitCursor(LyXText * text)
222 Assert(screen_); // it is a programming error to call fitCursor
223 // without a valid screen.
224 bool ret = screen_->FitCursor(text, bv_);
231 void BufferView::Pimpl::redoCurrentBuffer()
233 lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
234 if (buffer_ && bv_->text) {
236 owner_->updateLayoutChoice();
241 int BufferView::Pimpl::resizeCurrentBuffer()
243 lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
245 LyXParagraph * par = 0;
246 LyXParagraph * selstartpar = 0;
247 LyXParagraph * selendpar = 0;
256 owner_->getMiniBuffer()->Set(_("Formatting document..."));
259 par = bv_->text->cursor.par();
260 pos = bv_->text->cursor.pos();
261 selstartpar = bv_->text->sel_start_cursor.par();
262 selstartpos = bv_->text->sel_start_cursor.pos();
263 selendpar = bv_->text->sel_end_cursor.par();
264 selendpos = bv_->text->sel_end_cursor.pos();
265 selection = bv_->text->selection;
266 mark_set = bv_->text->mark_set;
268 bv_->text = new LyXText(bv_);
270 // See if we have a text in TextCache that fits
271 // the new buffer_ with the correct width.
272 bv_->text = textcache.findFit(buffer_, workarea_->workWidth());
274 if (lyxerr.debugging()) {
275 lyxerr << "Found a LyXText that fits:\n";
276 textcache.show(lyxerr, make_pair(buffer_, make_pair(workarea_->workWidth(), bv_->text)));
278 // Set the owner of the newly found text
279 // bv_->text->owner(bv_);
280 if (lyxerr.debugging())
281 textcache.show(lyxerr, "resizeCurrentBuffer");
283 bv_->text = new LyXText(bv_);
289 bv_->text->selection = true;
290 /* at this point just to avoid the Delete-Empty-Paragraph
291 * Mechanism when setting the cursor */
292 bv_->text->mark_set = mark_set;
294 bv_->text->SetCursor(bv_, selstartpar, selstartpos);
295 bv_->text->sel_cursor = bv_->text->cursor;
296 bv_->text->SetCursor(bv_, selendpar, selendpos);
297 bv_->text->SetSelection();
298 bv_->text->SetCursor(bv_, par, pos);
300 bv_->text->SetCursor(bv_, par, pos);
301 bv_->text->sel_cursor = bv_->text->cursor;
302 bv_->text->selection = false;
305 bv_->text->first = screen_->TopCursorVisible(bv_->text);
306 buffer_->resizeInsets(bv_);
307 // this will scroll the screen such that the cursor becomes visible
310 owner_->getMiniBuffer()->Init();
314 // Now if the title form still exist kill it
321 void BufferView::Pimpl::updateScreen()
323 // Regenerate the screen.
325 screen_ = new LyXScreen(*workarea_);
329 void BufferView::Pimpl::updateScrollbar()
331 /* If the text is smaller than the working area, the scrollbar
332 * maximum must be the working area height. No scrolling will
336 workarea_->setScrollbar(0, 1.0);
340 static unsigned long max2 = 0;
341 static unsigned long height2 = 0;
343 unsigned long cbth = 0;
347 cbth = bv_->text->height;
348 cbsf = bv_->text->first;
351 // check if anything has changed.
353 height2 == workarea_->height() &&
354 current_scrollbar_value == cbsf)
357 height2 = workarea_->height();
358 current_scrollbar_value = cbsf;
360 if (cbth <= height2) { // text is smaller than screen
361 workarea_->setScrollbar(0, 1.0); // right?
365 long maximum_height = workarea_->height() * 3 / 4 + cbth;
369 double hfloat = workarea_->height();
370 double maxfloat = maximum_height;
372 float slider_size = 0.0;
373 int slider_value = value;
375 workarea_->setScrollbarBounds(0, bv_->text->height - workarea_->height());
376 double lineh = bv_->text->DefaultHeight();
377 workarea_->setScrollbarIncrements(lineh);
378 if (maxfloat > 0.0) {
379 if ((hfloat / maxfloat) * float(height2) < 3)
380 slider_size = 3.0/float(height2);
382 slider_size = hfloat / maxfloat;
384 slider_size = hfloat;
386 workarea_->setScrollbar(slider_value, slider_size / workarea_->height());
390 // Callback for scrollbar slider
391 void BufferView::Pimpl::scrollCB(double value)
393 if (buffer_ == 0) return;
395 current_scrollbar_value = long(value);
396 if (current_scrollbar_value < 0)
397 current_scrollbar_value = 0;
402 screen_->Draw(bv_->text, bv_, current_scrollbar_value);
404 if (lyxrc.cursor_follows_scrollbar) {
405 LyXText * vbt = bv_->text;
406 int height = vbt->DefaultHeight();
408 if (vbt->cursor.y() < static_cast<int>((bv_->text->first + height))) {
409 vbt->SetCursorFromCoordinates(bv_, 0,
412 } else if (vbt->cursor.y() >
413 static_cast<int>((bv_->text->first+workarea_->height()-height)))
415 vbt->SetCursorFromCoordinates(bv_, 0,
417 workarea_->height() -
425 int BufferView::Pimpl::scrollUp(long time)
427 if (buffer_ == 0) return 0;
428 if (!screen_) return 0;
430 double value = workarea_->getScrollbarValue();
432 if (value == 0) return 0;
434 float add_value = (bv_->text->DefaultHeight()
435 + float(time) * float(time) * 0.125);
437 if (add_value > workarea_->height())
438 add_value = float(workarea_->height() -
439 bv_->text->DefaultHeight());
446 workarea_->setScrollbarValue(value);
453 int BufferView::Pimpl::scrollDown(long time)
455 if (buffer_ == 0) return 0;
456 if (!screen_) return 0;
458 double value= workarea_->getScrollbarValue();
459 pair<float, float> p = workarea_->getScrollbarBounds();
460 double max = p.second;
462 if (value == max) return 0;
464 float add_value = (bv_->text->DefaultHeight()
465 + float(time) * float(time) * 0.125);
467 if (add_value > workarea_->height())
468 add_value = float(workarea_->height() -
469 bv_->text->DefaultHeight());
476 workarea_->setScrollbarValue(value);
483 void BufferView::Pimpl::workAreaKeyPress(KeySym keysym, unsigned int state)
485 bv_->owner()->getLyXFunc()->processKeySym(keysym, state);
489 void BufferView::Pimpl::workAreaMotionNotify(int x, int y, unsigned int state)
491 // Only use motion with button 1
492 if (!(state & Button1MotionMask))
495 if (buffer_ == 0 || !screen_) return;
497 // Check for inset locking
498 if (bv_->theLockingInset()) {
499 LyXCursor cursor = bv_->text->cursor;
500 LyXFont font = bv_->text->GetFont(bv_->buffer(),
501 cursor.par(), cursor.pos());
502 int width = bv_->theLockingInset()->width(bv_, font);
503 int inset_x = font.isVisibleRightToLeft()
504 ? cursor.x() - width : cursor.x();
505 int start_x = inset_x + bv_->theLockingInset()->scroll();
506 bv_->theLockingInset()->
507 InsetMotionNotify(bv_,
509 y - cursor.y() + bv_->text->first,
514 /* The selection possible is needed, that only motion events are
515 * used, where the bottom press event was on the drawing area too */
516 if (selection_possible) {
517 screen_->HideCursor();
519 bv_->text->SetCursorFromCoordinates(bv_, x, y + bv_->text->first);
521 if (!bv_->text->selection)
522 update(BufferView::UPDATE); // Maybe an empty line was deleted
524 bv_->text->SetSelection();
525 screen_->ToggleToggle(bv_->text, bv_);
526 fitCursor(bv_->text);
527 screen_->ShowCursor(bv_->text, bv_);
533 // Single-click on work area
534 void BufferView::Pimpl::workAreaButtonPress(int xpos, int ypos,
540 if (buffer_ == 0 || !screen_) return;
542 Inset * inset_hit = checkInsetHit(bv_->text, xpos, ypos, button);
544 // ok ok, this is a hack.
545 if (button == 4 || button == 5) {
548 scrollUp(lyxrc.wheel_jump); // default 100, set in lyxrc
551 scrollDown(lyxrc.wheel_jump);
556 if (bv_->theLockingInset()) {
557 // We are in inset locking mode
559 /* Check whether the inset was hit. If not reset mode,
560 otherwise give the event to the inset */
561 if (inset_hit == bv_->theLockingInset()) {
562 bv_->theLockingInset()->
563 InsetButtonPress(bv_,
568 bv_->unlockInset(bv_->theLockingInset());
573 selection_possible = true;
574 screen_->HideCursor();
576 int const screen_first = bv_->text->first;
578 // Middle button press pastes if we have a selection
579 bool paste_internally = false;
581 && bv_->text->selection) {
582 owner_->getLyXFunc()->Dispatch(LFUN_COPY);
583 paste_internally = true;
586 // Clear the selection
587 screen_->ToggleSelection(bv_->text, bv_);
588 bv_->text->ClearSelection();
589 bv_->text->FullRebreak(bv_);
590 screen_->Update(bv_->text, bv_);
593 // Single left click in math inset?
594 if ((inset_hit != 0) &&
595 (inset_hit->Editable()==Inset::HIGHLY_EDITABLE)) {
596 // Highly editable inset, like math
597 UpdatableInset * inset = static_cast<UpdatableInset *>(inset_hit);
598 selection_possible = false;
599 owner_->updateLayoutChoice();
600 owner_->getMiniBuffer()->Set(inset->EditMessage());
601 inset->InsetButtonPress(bv_, xpos, ypos, button);
602 inset->Edit(bv_, xpos, ypos, button);
606 // Right click on a footnote flag opens float menu
608 selection_possible = false;
612 if (!inset_hit) // otherwise it was already set in checkInsetHit(...)
613 bv_->text->SetCursorFromCoordinates(bv_, xpos, ypos + screen_first);
614 bv_->text->FinishUndo();
615 bv_->text->sel_cursor = bv_->text->cursor;
616 bv_->text->cursor.x_fix(bv_->text->cursor.x());
618 owner_->updateLayoutChoice();
619 if (fitCursor(bv_->text)) {
620 selection_possible = false;
623 // Insert primary selection with middle mouse
624 // if there is a local selection in the current buffer,
627 if (paste_internally)
628 owner_->getLyXFunc()->Dispatch(LFUN_PASTE);
630 owner_->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
632 selection_possible = false;
638 void BufferView::Pimpl::doubleClick(int /*x*/, int /*y*/, unsigned int button)
641 if (buffer_ && !bv_->theLockingInset()) {
642 if (screen_ && button == 1) {
643 screen_->HideCursor();
644 screen_->ToggleSelection(bv_->text, bv_);
645 bv_->text->SelectWord(bv_);
646 screen_->ToggleSelection(bv_->text, bv_, false);
647 /* This will fit the cursor on the screen
649 update(BufferView::SELECT|BufferView::FITCUR);
655 void BufferView::Pimpl::tripleClick(int /*x*/, int /*y*/, unsigned int button)
658 if (buffer_ && screen_ && !bv_->theLockingInset() && (button == 1)) {
659 screen_->HideCursor();
660 screen_->ToggleSelection(bv_->text, bv_);
661 bv_->text->CursorHome(bv_);
662 bv_->text->sel_cursor = bv_->text->cursor;
663 bv_->text->CursorEnd(bv_);
664 bv_->text->SetSelection();
665 screen_->ToggleSelection(bv_->text, bv_, false);
666 /* This will fit the cursor on the screen
668 update(BufferView::SELECT|BufferView::FITCUR);
673 void BufferView::Pimpl::enterView()
675 if (active() && available()) {
676 SetXtermCursor(workarea_->getWin());
677 using_xterm_cursor = true;
682 void BufferView::Pimpl::leaveView()
684 if (using_xterm_cursor) {
685 XUndefineCursor(fl_get_display(), workarea_->getWin());
686 using_xterm_cursor = false;
691 void BufferView::Pimpl::workAreaButtonRelease(int x, int y,
694 if (buffer_ == 0 || screen_ == 0) return;
696 // If we hit an inset, we have the inset coordinates in these
697 // and inset_hit points to the inset. If we do not hit an
698 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
699 Inset * inset_hit = checkInsetHit(bv_->text, x, y, button);
701 if (bv_->theLockingInset()) {
702 // We are in inset locking mode.
704 /* LyX does a kind of work-area grabbing for insets.
705 Only a ButtonPress Event outside the inset will
706 force a InsetUnlock. */
707 bv_->theLockingInset()->
708 InsetButtonRelease(bv_, x, y, button);
712 selection_possible = false;
714 if (button >= 2) return;
719 // Did we hit an editable inset?
720 if (inset_hit != 0) {
721 // Inset like error, notes and figures
722 selection_possible = false;
724 // CHECK fix this proper in 0.13
726 // Following a ref shouldn't issue
727 // a push on the undo-stack
728 // anylonger, now that we have
729 // keybindings for following
730 // references and returning from
731 // references. IMHO though, it
732 // should be the inset's own business
733 // to push or not push on the undo
734 // stack. They don't *have* to
735 // alter the document...
737 // ...or maybe the SetCursorParUndo()
738 // below isn't necessary at all anylonger?
739 if (inset_hit->LyxCode() == Inset::REF_CODE) {
740 bv_->text->SetCursorParUndo(bv_->buffer());
743 owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
744 if (inset_hit->Editable()==Inset::HIGHLY_EDITABLE) {
745 // Highly editable inset, like math
746 UpdatableInset *inset = (UpdatableInset *)inset_hit;
747 inset->InsetButtonRelease(bv_, x, y, button);
749 inset_hit->InsetButtonRelease(bv_, x, y, button);
750 inset_hit->Edit(bv_, x, y, button);
755 // check whether we want to open a float
759 if (bv_->text->cursor.pos() <
760 bv_->text->cursor.par()->Last()) {
761 c = bv_->text->cursor.par()->
762 GetChar(bv_->text->cursor.pos());
765 if(!bv_->text->selection)
766 if (c == LyXParagraph::META_FOOTNOTE
767 || c == LyXParagraph::META_MARGIN
768 || c == LyXParagraph::META_FIG
769 || c == LyXParagraph::META_TAB
770 || c == LyXParagraph::META_WIDE_FIG
771 || c == LyXParagraph::META_WIDE_TAB
772 || c == LyXParagraph::META_ALGORITHM){
776 if (bv_->text->cursor.pos() - 1 >= 0) {
777 c = bv_->text->cursor.par()->
778 GetChar(bv_->text->cursor.pos() - 1);
780 if (c == LyXParagraph::META_FOOTNOTE
781 || c == LyXParagraph::META_MARGIN
782 || c == LyXParagraph::META_FIG
783 || c == LyXParagraph::META_TAB
784 || c == LyXParagraph::META_WIDE_FIG
785 || c == LyXParagraph::META_WIDE_TAB
786 || c == LyXParagraph::META_ALGORITHM){
787 // We are one step too far to the right
788 bv_->text->CursorLeft(bv_);
797 selection_possible = false;
803 // Do we want to close a float? (click on the float-label)
804 if (bv_->text->cursor.row()->par()->footnoteflag ==
805 LyXParagraph::OPEN_FOOTNOTE
806 && bv_->text->cursor.row()->previous() &&
807 bv_->text->cursor.row()->previous()->par()->
808 footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
809 LyXFont font(LyXFont::ALL_SANE);
810 font.setSize(LyXFont::SIZE_FOOTNOTE);
812 int box_x = 20; // LYX_PAPER_MARGIN;
813 box_x += lyxfont::width(" wide-tab ", font);
815 unsigned int screen_first = bv_->text->first;
818 && y + screen_first > bv_->text->cursor.y() -
819 bv_->text->cursor.row()->baseline()
820 && y + screen_first < bv_->text->cursor.y() -
821 bv_->text->cursor.row()->baseline()
822 + lyxfont::maxAscent(font) * 1.2 + lyxfont::maxDescent(font) * 1.2) {
824 selection_possible = false;
830 // Maybe we want to edit a bibitem ale970302
831 if (bv_->text->cursor.par()->bibkey && x < 20 +
832 bibitemMaxWidth(bv_, textclasslist.
834 params.textclass).defaultfont())) {
835 bv_->text->cursor.par()->bibkey->Edit(bv_, 0, 0, 0);
843 * Returns an inset if inset was hit. 0 otherwise.
844 * If hit, the coordinates are changed relative to the inset.
845 * Otherwise coordinates are not changed, and false is returned.
847 Inset * BufferView::Pimpl::checkInsetHit(LyXText * text, int & x, int & y,
848 unsigned int /* button */)
853 int y_tmp = y + text->first;
856 text->SetCursorFromCoordinates(bv_, cursor, x, y_tmp);
858 if (cursor.pos() < cursor.par()->Last()
859 && cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET
860 && cursor.par()->GetInset(cursor.pos())
861 && cursor.par()->GetInset(cursor.pos())->Editable()) {
863 // Check whether the inset really was hit
864 Inset * tmpinset = cursor.par()->GetInset(cursor.pos());
865 LyXFont font = text->GetFont(bv_->buffer(),
866 cursor.par(), cursor.pos());
867 int width = tmpinset->width(bv_, font);
868 int inset_x = font.isVisibleRightToLeft()
869 ? cursor.x() - width : cursor.x();
870 int start_x = inset_x + tmpinset->scroll();
871 int end_x = inset_x + width;
873 if (x > start_x && x < end_x
874 && y_tmp > cursor.y() - tmpinset->ascent(bv_, font)
875 && y_tmp < cursor.y() + tmpinset->descent(bv_, font)) {
876 text->SetCursor(bv_, cursor.par(),cursor.pos(),true);
878 // The origin of an inset is on the baseline
879 y = y_tmp - (text->cursor.y());
884 if ((cursor.pos() - 1 >= 0) &&
885 (cursor.par()->GetChar(cursor.pos()-1) == LyXParagraph::META_INSET) &&
886 (cursor.par()->GetInset(cursor.pos() - 1)) &&
887 (cursor.par()->GetInset(cursor.pos() - 1)->Editable())) {
888 Inset * tmpinset = cursor.par()->GetInset(cursor.pos()-1);
889 LyXFont font = text->GetFont(bv_->buffer(), cursor.par(),
891 int width = tmpinset->width(bv_, font);
892 int inset_x = font.isVisibleRightToLeft()
893 ? cursor.x() : cursor.x() - width;
894 int start_x = inset_x + tmpinset->scroll();
895 int end_x = inset_x + width;
897 if (x > start_x && x < end_x
898 && y_tmp > cursor.y() - tmpinset->ascent(bv_, font)
899 && y_tmp < cursor.y() + tmpinset->descent(bv_, font)) {
901 if (move_cursor && (tmpinset != bv_->theLockingInset()))
903 text->SetCursor(bv_, cursor.par(),cursor.pos()-1,true);
905 // The origin of an inset is on the baseline
906 y = y_tmp - (text->cursor.y());
914 void BufferView::Pimpl::workAreaExpose()
916 // this is a hack to ensure that we only call this through
917 // BufferView::redraw().
922 static int work_area_width = 0;
923 static unsigned int work_area_height = 0;
925 bool widthChange = workarea_->workWidth() != work_area_width;
926 bool heightChange = workarea_->height() != work_area_height;
928 // update from work area
929 work_area_width = workarea_->workWidth();
930 work_area_height = workarea_->height();
933 // All buffers need a resize
936 // Remove all texts from the textcache
937 // This is not _really_ what we want to do. What
938 // we really want to do is to delete in textcache
939 // that does not have a BufferView with matching
940 // width, but as long as we have only one BufferView
941 // deleting all gives the same result.
942 if (lyxerr.debugging())
943 textcache.show(lyxerr, "Expose delete all");
945 } else if (heightChange) {
946 // Rebuild image of current screen
948 // fitCursor() ensures we don't jump back
949 // to the start of the document on vertical
951 fitCursor(bv_->text);
953 // The main window size has changed, repaint most stuff
955 // ...including the minibuffer
956 owner_->getMiniBuffer()->Init();
959 screen_->Redraw(bv_->text, bv_);
961 // Grey box when we don't have a buffer
962 workarea_->greyOut();
965 // always make sure that the scrollbar is sane.
967 owner_->updateLayoutChoice();
972 void BufferView::Pimpl::update()
974 if (screen_) screen_->Update(bv_->text, bv_);
977 // Values used when calling update:
979 // -2 - update, move sel_cursor if selection, fitcursor
980 // -1 - update, move sel_cursor if selection, fitcursor, mark dirty
981 // 0 - update, move sel_cursor if selection, fitcursor
982 // 1 - update, move sel_cursor if selection, fitcursor, mark dirty
983 // 3 - update, move sel_cursor if selection
986 // a simple redraw of the parts that need refresh
988 // move sel_cursor if selection -
989 // the text's sel_cursor is moved if there is selection is progress
992 // fitCursor() is called and the scrollbar updated
995 // the buffer is marked dirty.
1004 // UPDATE_ONLY = UPDATE;
1005 // UPDATE_SELECT = UPDATE | SELECT;
1006 // UPDATE_SELECT_MOVE = UPDATE | SELECT | FITCUR;
1007 // UPDATE_SELECT_MOVE_AFTER_CHANGE = UPDATE | SELECT | FITCUR | CHANGE;
1009 // update(-3) -> update(0) -> update(0) -> update(UPDATE)
1010 // update(-2) -> update(1 + 2) -> update(3) -> update(SELECT|FITCUR)
1011 // update(-1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1012 // update(1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1013 // update(3) -> update(1) -> update(1) -> update(SELECT)
1015 void BufferView::Pimpl::update(BufferView::UpdateCodes f)
1017 owner_->updateLayoutChoice();
1019 if (!bv_->text->selection && (f & SELECT)) {
1020 bv_->text->sel_cursor = bv_->text->cursor;
1023 bv_->text->FullRebreak(bv_);
1028 fitCursor(bv_->text);
1032 if (buffer_->isLyxClean()) {
1033 buffer_->markDirty();
1034 owner_->getMiniBuffer()->setTimer(4);
1036 buffer_->markDirty();
1042 // Callback for cursor timer
1043 void BufferView::Pimpl::cursorToggle()
1045 // Quite a nice place for asyncron Inset updating, isn't it?
1046 // Actually no! This is run even if no buffer exist... so (Lgb)
1048 goto set_timer_and_return;
1052 // On my quest to solve the gs render hangups I am now
1053 // disabling the SIGHUP completely, and will do a wait
1054 // now and then instead. If the guess that xforms somehow
1055 // destroys something is true, this is likely (hopefully)
1056 // to solve the problem...at least I hope so. Lgb
1058 // ...Ok this seems to work...at least it does not make things
1059 // worse so far. However I still see gs processes that hangs.
1060 // I would really like to know _why_ they are hanging. Anyway
1061 // the solution without the SIGCHLD handler seems to be easier
1064 // When attaching gdb to a a running gs that hangs it shows
1065 // that it is waiting for input(?) Is it possible for us to
1066 // provide that input somehow? Or figure what it is expecing
1069 // One solution is to, after some time, look if there are some
1070 // old gs processes still running and if there are: kill them
1073 // Another solution is to provide the user an option to rerender
1074 // a picture. This would, for the picture in question, check if
1075 // there is a gs running for it, if so kill it, and start a new
1076 // rendering process.
1078 // these comments posted to lyx@via
1081 int pid = waitpid(static_cast<pid_t>(0), &status, WNOHANG);
1082 if (pid == -1) // error find out what is wrong
1083 ; // ignore it for now.
1085 sigchldhandler(pid, &status);
1088 updatelist.update(bv_);
1091 goto set_timer_and_return;
1094 if (!bv_->theLockingInset()) {
1095 screen_->CursorToggle(bv_->text, bv_);
1097 bv_->theLockingInset()->ToggleInsetCursor(bv_);
1100 set_timer_and_return:
1101 cursor_timeout.restart();
1106 void BufferView::Pimpl::cursorPrevious(LyXText * text)
1108 if (!text->cursor.row()->previous())
1111 int y = text->first;
1112 if (text->inset_owner)
1113 y += bv_->text->first;
1114 Row * cursorrow = text->cursor.row();
1115 text->SetCursorFromCoordinates(bv_, bv_->text->cursor.x_fix(), y);
1116 bv_->text->FinishUndo();
1117 // This is to allow jumping over large insets
1118 if ((cursorrow == text->cursor.row()))
1119 text->CursorUp(bv_);
1121 if (text->inset_owner ||
1122 text->cursor.row()->height() < workarea_->height())
1123 screen_->Draw(bv_->text, bv_,
1125 - text->cursor.row()->baseline()
1126 + text->cursor.row()->height()
1127 - workarea_->height() + 1 );
1132 void BufferView::Pimpl::cursorNext(LyXText * text)
1134 if (!text->cursor.row()->next())
1137 int y = text->first + workarea_->height();
1138 // if (text->inset_owner)
1139 // y += bv_->text->first;
1140 text->GetRowNearY(y);
1142 Row * cursorrow = text->cursor.row();
1143 text->SetCursorFromCoordinates(bv_, text->cursor.x_fix(), y); // + workarea_->height());
1144 bv_->text->FinishUndo();
1145 // This is to allow jumping over large insets
1146 if ((cursorrow == bv_->text->cursor.row()))
1147 text->CursorDown(bv_);
1149 if (text->inset_owner ||
1150 text->cursor.row()->height() < workarea_->height())
1151 screen_->Draw(bv_->text, bv_, text->cursor.y() -
1152 text->cursor.row()->baseline());
1157 bool BufferView::Pimpl::available() const
1159 if (buffer_ && bv_->text) return true;
1164 void BufferView::Pimpl::beforeChange()
1167 bv_->text->ClearSelection();
1170 //owner_->update_timeout.stop();
1174 void BufferView::Pimpl::savePosition()
1176 backstack.push(buffer_->fileName(),
1177 bv_->text->cursor.x(),
1178 bv_->text->cursor.y());
1182 void BufferView::Pimpl::restorePosition()
1184 if (backstack.empty()) return;
1187 string fname = backstack.pop(&x, &y);
1191 if (fname != buffer_->fileName()) {
1192 Buffer * b = bufferlist.exists(fname) ?
1193 bufferlist.getBuffer(fname) :
1194 bufferlist.loadLyXFile(fname); // don't ask, just load it
1195 if (b != 0 ) buffer(b);
1198 bv_->text->SetCursorFromCoordinates(bv_, x, y);
1199 update(BufferView::SELECT|BufferView::FITCUR);
1203 bool BufferView::Pimpl::NoSavedPositions()
1205 return backstack.empty();
1209 void BufferView::Pimpl::setState()
1211 if (!lyxrc.rtl_support)
1214 LyXText * text = bv_->getLyXText();
1215 if (text->real_current_font.isRightToLeft() &&
1216 text->real_current_font.latex() != LyXFont::ON) {
1217 if (owner_->getIntl()->primarykeymap)
1218 owner_->getIntl()->KeyMapSec();
1220 if (!owner_->getIntl()->primarykeymap)
1221 owner_->getIntl()->KeyMapPrim();
1226 void BufferView::Pimpl::insetSleep()
1228 if (bv_->theLockingInset() && !bv_->inset_slept) {
1229 bv_->theLockingInset()->GetCursorPos(bv_, bv_->slx, bv_->sly);
1230 bv_->theLockingInset()->InsetUnlock(bv_);
1231 bv_->inset_slept = true;
1236 void BufferView::Pimpl::insetWakeup()
1238 if (bv_->theLockingInset() && bv_->inset_slept) {
1239 bv_->theLockingInset()->Edit(bv_, bv_->slx, bv_->sly, 0);
1240 bv_->inset_slept = false;
1245 void BufferView::Pimpl::insetUnlock()
1247 if (bv_->theLockingInset()) {
1248 if (!bv_->inset_slept)
1249 bv_->theLockingInset()->InsetUnlock(bv_);
1250 bv_->theLockingInset(0);
1251 bv_->text->FinishUndo();
1252 bv_->inset_slept = false;
1257 bool BufferView::Pimpl::focus() const
1259 return workarea_->hasFocus();
1263 void BufferView::Pimpl::focus(bool f)
1265 if (f) workarea_->setFocus();
1269 bool BufferView::Pimpl::active() const
1271 return workarea_->active();
1275 bool BufferView::Pimpl::belowMouse() const
1277 return workarea_->belowMouse();
1281 void BufferView::Pimpl::showCursor()
1284 screen_->ShowCursor(bv_->text, bv_);
1288 void BufferView::Pimpl::hideCursor()
1291 screen_->HideCursor();
1295 void BufferView::Pimpl::toggleSelection(bool b)
1298 screen_->ToggleSelection(bv_->text, bv_, b);
1302 void BufferView::Pimpl::toggleToggle()
1305 screen_->ToggleToggle(bv_->text, bv_);
1309 void BufferView::Pimpl::center()
1312 if (bv_->text->cursor.y() > static_cast<int>((workarea_->height() / 2))) {
1313 screen_->Draw(bv_->text, bv_, bv_->text->cursor.y() - workarea_->height() / 2);
1315 screen_->Draw(bv_->text, bv_, 0);
1317 update(BufferView::SELECT|BufferView::FITCUR);
1322 void BufferView::Pimpl::pasteClipboard(bool asPara)
1324 if (buffer_ == 0) return;
1326 screen_->HideCursor();
1327 bv_->beforeChange();
1329 string const clip(workarea_->getClipboard());
1331 if (clip.empty()) return;
1334 bv_->text->InsertStringB(bv_, clip);
1336 bv_->text->InsertStringA(bv_, clip);
1338 update(BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1342 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
1344 workarea_->putClipboard(stuff);