2 /* This file is part of
3 * ======================================================
5 * LyX, The Document Processor
7 * Copyright 1995 Matthias Ettrich
8 * Copyright 1995-1999 The LyX Team.
10 * ======================================================*/
20 #include "support/lstrings.h"
23 #pragma implementation
26 #include "commandtags.h"
27 #include "BufferView.h"
28 #include "bufferlist.h"
31 #include "insets/lyxinset.h"
32 #include "minibuffer.h"
33 #include "lyxscreen.h"
38 #include "lyx_gui_misc.h"
39 #include "BackStack.h"
45 extern BufferList bufferlist;
46 void sigchldhandler(pid_t pid, int *status);
48 extern void SetXtermCursor(Window win);
49 extern bool input_prohibited;
50 extern bool selection_possible;
51 extern void BeforeChange();
52 extern char ascii_type;
53 extern int UnlockInset(UpdatableInset* inset);
54 extern void ToggleFloat();
55 extern void MenuPasteSelection(char at);
56 extern InsetUpdateStruct *InsetUpdateList;
57 extern void UpdateInsetUpdateList();
59 // This is _very_ temporary
60 FL_OBJECT * figinset_canvas;
62 BufferView::BufferView(LyXView *o, int xpos, int ypos,
63 int width, int height)
75 current_scrollbar_value = 0;
76 create_view(xpos, ypos, width, height);
77 // Activate the timer for the cursor
78 fl_set_timer(timer_cursor, 0.4);
79 fl_set_focus_object(_owner->getForm(), work_area);
80 work_area_focus = true;
85 void BufferView::setBuffer(Buffer *b)
87 lyxerr.debug() << "Setting buffer in BufferView" << endl;
89 _buffer->InsetSleep();
90 _buffer->delUser(this);
96 if (bufferlist.getState() == BufferList::CLOSING) return;
103 // If we are closing the buffer, use the first buffer as current
105 _buffer = bufferlist.first();
109 lyxerr.debug() << " Buffer addr: " << _buffer << endl;
110 _buffer->addUser(this);
111 _owner->getMenus()->showMenus();
112 // If we don't have a text object for this, we make one
113 if (_buffer->text == 0)
114 resizeCurrentBuffer();
119 screen->first = screen->TopCursorVisible();
121 updateAllVisibleBufferRelatedPopups();
122 _buffer->InsetWakeup();
124 lyxerr.debug() << " No Buffer!" << endl;
125 _owner->getMenus()->hideMenus();
127 fl_redraw_object(work_area);
129 // should update layoutchoice even if we don't have a buffer.
130 _owner->updateLayoutChoice();
131 _owner->getMiniBuffer()->Init();
132 _owner->updateWindowTitle();
136 void BufferView::updateScreen()
138 // Regenerate the screen.
141 screen = new LyXScreen(FL_ObjWin(work_area),
150 void BufferView::resize()
152 // This will resize the buffer. (Asger)
154 resizeCurrentBuffer();
158 static bool lgb_hack = false;
160 void BufferView::redraw()
162 lyxerr.debug() << "BufferView::redraw()" << endl;
164 fl_redraw_object(work_area);
165 fl_redraw_object(scrollbar);
166 fl_redraw_object(button_down);
167 fl_redraw_object(button_up);
172 void BufferView::fitCursor()
174 if (screen) screen->FitCursor();
178 void BufferView::update()
180 if (screen) screen->Update();
184 void BufferView::updateScrollbar()
186 /* If the text is smaller than the working area, the scrollbar
187 * maximum must be the working area height. No scrolling will
191 fl_set_slider_value(scrollbar, 0);
192 fl_set_slider_size(scrollbar, scrollbar->h);
196 static long max2 = 0;
197 static long height2 = 0;
203 cbth = _buffer->text->height;
205 cbsf = screen->first;
207 // check if anything has changed.
209 height2 == work_area->h &&
210 current_scrollbar_value == cbsf)
214 height2 = work_area->h;
215 current_scrollbar_value = cbsf;
217 if (cbth <= height2) { // text is smaller than screen
218 fl_set_slider_size(scrollbar, scrollbar->h);
222 long maximum_height = work_area->h * 3/4 + cbth;
225 /* set the scrollbar */
226 double hfloat = work_area->h;
227 double maxfloat = maximum_height;
229 fl_set_slider_value(scrollbar, value);
230 fl_set_slider_bounds(scrollbar, 0,
231 maximum_height - work_area->h);
233 double lineh = _buffer->text->DefaultHeight();
234 fl_set_slider_increment(scrollbar,work_area->h-lineh,lineh);
237 if ((hfloat/maxfloat) * float(height2) < 3)
238 fl_set_slider_size(scrollbar,
241 fl_set_slider_size(scrollbar,
244 fl_set_slider_size(scrollbar, hfloat);
245 fl_set_slider_precision(scrollbar, 0);
249 void BufferView::redoCurrentBuffer()
251 lyxerr.debug() << "BufferView::redoCurrentBuffer" << endl;
252 if (_buffer && _buffer->text) {
254 _owner->updateLayoutChoice();
259 int BufferView::resizeCurrentBuffer()
261 lyxerr.debug() << "resizeCurrentBuffer" << endl;
263 LyXParagraph * par = 0;
264 LyXParagraph * selstartpar = 0;
265 LyXParagraph * selendpar = 0;
274 _owner->getMiniBuffer()->Set(_("Formatting document..."));
277 par = _buffer->text->cursor.par;
278 pos = _buffer->text->cursor.pos;
279 selstartpar = _buffer->text->sel_start_cursor.par;
280 selstartpos = _buffer->text->sel_start_cursor.pos;
281 selendpar = _buffer->text->sel_end_cursor.par;
282 selendpos = _buffer->text->sel_end_cursor.pos;
283 selection = _buffer->text->selection;
284 mark_set = _buffer->text->mark_set;
285 delete _buffer->text;
287 _buffer->text = new LyXText(work_area->w, _buffer);
292 _buffer->text->selection = true;
293 /* at this point just
294 * to avoid the Delete-
297 * setting the cursor */
298 _buffer->text->mark_set = mark_set;
300 _buffer->text->SetCursor(selstartpar, selstartpos);
301 _buffer->text->sel_cursor = _buffer->text->cursor;
302 _buffer->text->SetCursor(selendpar, selendpos);
303 _buffer->text->SetSelection();
304 _buffer->text->SetCursor(par, pos);
306 _buffer->text->SetCursor(par, pos);
307 _buffer->text->sel_cursor = _buffer->text->cursor;
308 _buffer->text->selection = false;
311 screen->first = screen->TopCursorVisible(); /* this will scroll the
312 * screen such that the
317 _owner->getMiniBuffer()->Init();
320 // Now if the title form still exist kill it
327 void BufferView::gotoError()
332 screen->HideCursor();
337 if (!_buffer->text->GotoNextError()) {
338 if (_buffer->text->cursor.pos
339 || _buffer->text->cursor.par !=
340 _buffer->text->FirstParagraph()) {
341 tmp = _buffer->text->cursor;
342 _buffer->text->cursor.par =
343 _buffer->text->FirstParagraph();
344 _buffer->text->cursor.pos = 0;
345 if (!_buffer->text->GotoNextError()) {
346 _buffer->text->cursor = tmp;
347 _owner->getMiniBuffer()->Set(_("No more errors"));
351 _owner->getMiniBuffer()->Set(_("No more errors"));
356 _buffer->text->sel_cursor =
357 _buffer->text->cursor;
361 // Just a bunch of C wrappers around static members of BufferView
362 extern "C" void C_BufferView_UpCB(FL_OBJECT * ob, long buf) {
363 BufferView::UpCB(ob, buf);
366 extern "C" void C_BufferView_DownCB(FL_OBJECT * ob, long buf) {
367 BufferView::DownCB(ob, buf);
370 extern "C" void C_BufferView_ScrollCB(FL_OBJECT * ob, long buf) {
371 BufferView::ScrollCB(ob, buf);
374 extern "C" void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf) {
375 BufferView::CursorToggleCB(ob, buf);
378 extern "C" int C_BufferView_work_area_handler(FL_OBJECT * ob, int event,
380 int key, void * xev) {
381 return BufferView::work_area_handler(ob, event, 0, 0, key, xev);
385 void BufferView::create_view(int xpos, int ypos, int width, int height)
388 const int bw = abs(fl_get_border_width());
390 // a hack for the figinsets (Matthias)
391 // This one first, then it will probably be invisible. (Lgb)
392 ::figinset_canvas = figinset_canvas = obj =
393 fl_add_canvas(FL_NORMAL_CANVAS,
396 fl_set_object_boxtype(obj,FL_NO_BOX);
397 fl_set_object_resize(obj, FL_RESIZE_ALL);
398 fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
401 obj = fl_add_box(FL_BORDER_BOX, xpos, ypos,
404 fl_set_object_resize(obj, FL_RESIZE_ALL);
405 fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
408 work_area = obj = fl_add_free(FL_INPUT_FREE,
410 width-15-2*bw /* scrollbarwidth */,
412 C_BufferView_work_area_handler);
413 obj->wantkey = FL_KEY_TAB;
414 obj->u_vdata = this; /* This is how we pass the BufferView
415 to the work_area_handler. */
416 fl_set_object_boxtype(obj,FL_DOWN_BOX);
417 fl_set_object_resize(obj, FL_RESIZE_ALL);
418 fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
424 // up - scrollbar button
426 fl_set_border_width(-1);
428 fl_set_border_width(-2); // to get visible feedback
430 button_up = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
434 fl_set_object_boxtype(obj,FL_UP_BOX);
435 fl_set_object_color(obj,FL_MCOL,FL_BLUE);
436 fl_set_object_resize(obj, FL_RESIZE_ALL);
437 fl_set_object_gravity(obj,NorthEastGravity, NorthEastGravity);
438 fl_set_object_callback(obj, C_BufferView_UpCB, 0);
440 fl_set_pixmapbutton_data(obj, up_xpm);
443 // Remove the blue feedback rectangle
444 fl_set_pixmapbutton_focus_outline(obj,0);
447 // the scrollbar slider
448 fl_set_border_width(-bw);
449 scrollbar = obj = fl_add_slider(FL_VERT_SLIDER,
453 fl_set_object_color(obj,FL_COL1,FL_MCOL);
454 fl_set_object_boxtype(obj, FL_UP_BOX);
455 fl_set_object_resize(obj, FL_RESIZE_ALL);
456 fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
457 fl_set_object_callback(obj, C_BufferView_ScrollCB, 0);
460 // down - scrollbar button
462 fl_set_border_width(-1);
464 fl_set_border_width(-2); // to get visible feedback
466 button_down = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
470 fl_set_object_boxtype(obj,FL_UP_BOX);
471 fl_set_object_color(obj,FL_MCOL,FL_BLUE);
472 fl_set_object_resize(obj, FL_RESIZE_ALL);
473 fl_set_object_gravity(obj, SouthEastGravity, SouthEastGravity);
474 fl_set_object_callback(obj, C_BufferView_DownCB, 0);
476 fl_set_pixmapbutton_data(obj, down_xpm);
477 fl_set_border_width(-bw);
480 // Remove the blue feedback rectangle
481 fl_set_pixmapbutton_focus_outline(obj,0);
489 timer_cursor = obj = fl_add_timer(FL_HIDDEN_TIMER,
491 fl_set_object_callback(obj,C_BufferView_CursorToggleCB,0);
496 // Callback for scrollbar up button
497 void BufferView::UpCB(FL_OBJECT * ob, long)
499 BufferView * view = static_cast<BufferView*>(ob->u_vdata);
501 if (view->_buffer == 0) return;
504 static long time = 0;
505 ev2 = fl_last_event();
506 if (ev2->type == ButtonPress || ev2->type == ButtonRelease)
508 int button = fl_get_button_numb(ob);
511 view->ScrollUpOnePage(time++); break;
513 view->ScrollDownOnePage(time++); break;
515 view->ScrollUp(time++); break;
526 a = XInternAtom(fl_display, "WAIT_FOR_X", False);
529 XSetWindowAttributes attr;
530 mask = CWOverrideRedirect;
531 attr.override_redirect = 1;
532 w = XCreateWindow(fl_display, fl_root,
533 0, 0, 1, 1, 0, CopyFromParent,
534 InputOnly, CopyFromParent, mask, &attr);
535 XSelectInput(fl_display, w, PropertyChangeMask);
536 XMapWindow(fl_display, w);
539 XChangeProperty(fl_display, w, a, a, 8,
540 PropModeAppend, reinterpret_cast<unsigned char*>(""), 0);
541 XWindowEvent(fl_display, w, PropertyChangeMask, &ev);
545 // Callback for scrollbar slider
546 void BufferView::ScrollCB(FL_OBJECT * ob, long)
548 BufferView *view = static_cast<BufferView*>(ob->u_vdata);
549 extern bool cursor_follows_scrollbar;
551 if (view->_buffer == 0) return;
553 view->current_scrollbar_value = long(fl_get_slider_value(ob));
554 if (view->current_scrollbar_value < 0)
555 view->current_scrollbar_value = 0;
560 view->screen->Draw(view->current_scrollbar_value);
562 if (cursor_follows_scrollbar) {
563 LyXText * vbt = view->_buffer->text;
564 int height = vbt->DefaultHeight();
566 if (vbt->cursor.y < view->screen->first + height) {
567 vbt->SetCursorFromCoordinates(0,
568 view->screen->first +
571 else if (vbt->cursor.y >
572 view->screen->first + view->work_area->h - height) {
573 vbt->SetCursorFromCoordinates(0,
574 view->screen->first +
583 // Callback for scrollbar down button
584 void BufferView::DownCB(FL_OBJECT * ob, long)
586 BufferView * view = static_cast<BufferView*>(ob->u_vdata);
588 if (view->_buffer == 0) return;
591 static long time = 0;
592 ev2 = fl_last_event();
593 if (ev2->type == ButtonPress || ev2->type == ButtonRelease)
595 int button = fl_get_button_numb(ob);
598 view->ScrollUpOnePage(time++); break;
600 view->ScrollDownOnePage(time++); break;
602 view->ScrollDown(time++); break;
607 int BufferView::ScrollUp(long time)
609 if (_buffer == 0) return 0;
613 double value= fl_get_slider_value(scrollbar);
618 float add_value = (_buffer->text->DefaultHeight()
619 + float(time) * float(time) * 0.125);
621 if (add_value > work_area->h)
622 add_value = float(work_area->h -
623 _buffer->text->DefaultHeight());
630 fl_set_slider_value(scrollbar, value);
632 ScrollCB(scrollbar, 0);
637 int BufferView::ScrollDown(long time)
639 if (_buffer == 0) return 0;
643 double value= fl_get_slider_value(scrollbar);
645 fl_get_slider_bounds(scrollbar, &min, &max);
650 float add_value = (_buffer->text->DefaultHeight()
651 + float(time) * float(time) * 0.125);
653 if (add_value > work_area->h)
654 add_value = float(work_area->h -
655 _buffer->text->DefaultHeight());
662 fl_set_slider_value(scrollbar, value);
664 ScrollCB(scrollbar, 0);
669 void BufferView::ScrollUpOnePage(long /*time*/)
671 if (_buffer == 0) return;
675 long y = screen->first;
679 Row* row = _buffer->text->GetRowNearY(y);
680 y = y - work_area->h + row->height;
682 fl_set_slider_value(scrollbar, y);
684 ScrollCB(scrollbar, 0);
688 void BufferView::ScrollDownOnePage(long /*time*/)
690 if (_buffer == 0) return;
695 fl_get_slider_bounds(scrollbar, &min, &max);
696 long y = screen->first;
698 if (y > _buffer->text->height - work_area->h)
702 _buffer->text->GetRowNearY(y);
704 fl_set_slider_value(scrollbar, y);
706 ScrollCB(scrollbar, 0);
710 int BufferView::work_area_handler(FL_OBJECT * ob, int event,
712 int /*key*/, void *xev)
714 static int x_old = -1;
715 static int y_old = -1;
716 static long scrollbar_value_old = -1;
718 XEvent * ev = static_cast<XEvent*>(xev);
719 BufferView * view = static_cast<BufferView*>(ob->u_vdata);
721 // If we don't have a view yet; return
722 if (!view || quitting) return 0;
726 view->workAreaExpose();
729 view->WorkAreaButtonPress(ob, 0,0,0,ev,0);
732 view->WorkAreaButtonRelease(ob, 0,0,0,ev,0);
735 if (ev->xmotion.x != x_old ||
736 ev->xmotion.y != y_old ||
737 view->current_scrollbar_value != scrollbar_value_old) {
738 x_old = ev->xmotion.x;
739 y_old = ev->xmotion.y;
740 scrollbar_value_old = view->current_scrollbar_value;
741 view->WorkAreaMotionNotify(ob, 0,0,0,ev,0);
744 // Done by the raw callback:
745 // case FL_KEYBOARD: WorkAreaKeyPress(ob, 0,0,0,ev,0); break;
747 if (!view->_owner->getMiniBuffer()->shows_no_match)
748 view->_owner->getMiniBuffer()->Init();
749 view->_owner->getMiniBuffer()->shows_no_match = false;
750 view->work_area_focus = true;
751 fl_set_timer(view->timer_cursor, 0.4);
754 view->_owner->getMiniBuffer()->ExecCommand();
755 view->work_area_focus = false;
758 SetXtermCursor(view->_owner->getForm()->window);
760 view->lyx_focus = true;
761 fl_set_timer(view->timer_cursor, 0.4);
764 if (!input_prohibited)
765 XUndefineCursor(fl_display,
766 view->_owner->getForm()->window);
767 view->lyx_focus = false; // This is not an absolute truth
768 // but if it is not true, it will be changed within a blink
769 // of an eye. ... Not good enough... use regulare timeperiod
770 //fl_set_timer(view->timer_cursor, 0.01); // 0.1 sec blink
771 fl_set_timer(view->timer_cursor, 0.4); // 0.4 sec blink
775 if (view->_buffer && !view->_buffer->the_locking_inset) {
776 if (view->screen && ev->xbutton.button == 1) {
777 view->screen->HideCursor();
778 view->screen->ToggleSelection();
779 view->_buffer->text->SelectWord();
780 view->screen->ToggleSelection(false);
781 /* This will fit the cursor on the screen
783 view->_buffer->update(0);
789 if (view->_buffer && view->screen && ev->xbutton.button == 1) {
790 view->screen->HideCursor();
791 view->screen->ToggleSelection();
792 view->_buffer->text->CursorHome();
793 view->_buffer->text->sel_cursor =
794 view->_buffer->text->cursor;
795 view->_buffer->text->CursorEnd();
796 view->_buffer->text->SetSelection();
797 view->screen->ToggleSelection(false);
798 /* This will fit the cursor on the screen
800 view->_buffer->update(0);
804 view->WorkAreaSelectionNotify(ob,
805 view->_owner->getForm()->window,
812 int BufferView::WorkAreaMotionNotify(FL_OBJECT *ob, Window,
813 int /*w*/, int /*h*/,
814 XEvent *ev, void */*d*/)
817 if (_buffer == 0) return 0;
818 if (!screen) return 0;
820 // Check for inset locking
821 if (_buffer->the_locking_inset) {
822 LyXCursor cursor = _buffer->text->cursor;
823 _buffer->the_locking_inset->
824 InsetMotionNotify(ev->xbutton.x - ob->x - cursor.x,
825 ev->xbutton.y - ob->y -
831 // Only use motion with button 1
832 if (!ev->xmotion.state & Button1MotionMask)
835 /* The selection possible is needed, that only motion events are
836 * used, where the bottom press event was on the drawing area too */
837 if (selection_possible) {
838 screen->HideCursor();
841 SetCursorFromCoordinates(ev->xbutton.x - ob->x,
842 ev->xbutton.y - ob->y +
845 if (!_buffer->text->selection)
846 _buffer->update(-3); // Maybe an empty line was deleted
848 _buffer->text->SetSelection();
849 screen->ToggleToggle();
850 if (screen->FitCursor())
852 screen->ShowCursor();
858 extern int bibitemMaxWidth(LyXFont const &);
860 // Single-click on work area
861 int BufferView::WorkAreaButtonPress(FL_OBJECT *ob, Window,
862 int /*w*/, int /*h*/, XEvent *ev, void */*d*/)
867 if (_buffer == 0) return 0;
868 if (!screen) return 0;
870 int const x = ev->xbutton.x - ob->x;
871 int const y = ev->xbutton.y - ob->y;
872 // If we hit an inset, we have the inset coordinates in these
873 // and inset_hit points to the inset. If we do not hit an
874 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
877 Inset * inset_hit = checkInsetHit(inset_x, inset_y);
879 // ok ok, this is a hack.
880 int button = ev->xbutton.button;
881 if (button == 4 || button == 5) goto wheel;
885 if (_buffer->the_locking_inset) {
886 // We are in inset locking mode
888 /* Check whether the inset was hit. If not reset mode,
889 otherwise give the event to the inset */
890 if (inset_hit != 0) {
891 _buffer->the_locking_inset->
892 InsetButtonPress(inset_x, inset_y, button);
895 UnlockInset(_buffer->the_locking_inset);
899 selection_possible = true;
900 screen->HideCursor();
902 // Right button mouse click on a table
904 (_buffer->text->cursor.par->table ||
905 _buffer->text->MouseHitInTable(x, y+screen->first))) {
906 // Set the cursor to the press-position
907 _buffer->text->SetCursorFromCoordinates(x, y + screen->first);
910 // Only show the table popup if the hit is in the table, too
911 if (!_buffer->text->HitInTable(_buffer->text->cursor.row, x))
914 // Hit above or below the table?
916 if (!_buffer->text->selection) {
917 screen->ToggleSelection();
918 _buffer->text->ClearSelection();
919 _buffer->text->FullRebreak();
923 // Popup table popup when on a table.
924 // This is obviously temporary, since we should be
926 // popup various context-sensitive-menus with the
927 // the right mouse. So this should be done more
928 // general in the future. Matthias.
929 selection_possible = false;
930 _owner->getLyXFunc()->Dispatch(LFUN_LAYOUT_TABLE,
936 int screen_first = screen->first;
938 // Middle button press pastes if we have a selection
939 bool paste_internally = false;
940 if (button == 2 // && !_buffer->the_locking_inset
941 && _buffer->text->selection) {
942 _owner->getLyXFunc()->Dispatch(LFUN_COPY);
943 paste_internally = true;
946 // Clear the selection
947 screen->ToggleSelection();
948 _buffer->text->ClearSelection();
949 _buffer->text->FullRebreak();
953 // Single left click in math inset?
954 if (inset_hit != 0 && inset_hit->Editable() == 2) {
955 // Highly editable inset, like math
956 selection_possible = false;
957 _owner->updateLayoutChoice();
958 _owner->getMiniBuffer()->Set(inset_hit->EditMessage());
959 inset_hit->Edit(inset_x, inset_y);
963 // Right click on a footnote flag opens float menu
965 selection_possible = false;
969 _buffer->text->SetCursorFromCoordinates(x, y + screen_first);
970 _buffer->text->FinishUndo();
971 _buffer->text->sel_cursor = _buffer->text->cursor;
972 _buffer->text->cursor.x_fix = _buffer->text->cursor.x;
974 _owner->updateLayoutChoice();
975 if (screen->FitCursor()){
977 selection_possible = false;
980 // Insert primary selection with middle mouse
981 // if there is a local selection in the current buffer, insert this
982 if (button == 2) { // && !_buffer->the_locking_inset){
983 if (paste_internally)
984 _owner->getLyXFunc()->Dispatch(LFUN_PASTE);
986 _owner->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
988 selection_possible = false;
994 // I am not quite sure if this is the correct place to put this,
995 // but it will not cause any harm.
996 // Patch from Mark Huang (markman@mit.edu) to make LyX recognise
997 // button 4 and 5. This enables LyX use use the scrollwhell on
998 // certain mice for something useful. (Lgb)
999 // Added wheel acceleration detection code. (Rvdk)
1000 static Time lastTime = 0;
1001 int diff = ev->xbutton.time - lastTime;
1002 int scroll = int(1.0 + (4.0/(abs(diff)+1.0))*200.0);
1011 lastTime = ev->xbutton.time;
1022 int BufferView::WorkAreaButtonRelease(FL_OBJECT *ob, Window ,
1023 int /*w*/, int /*h*/, XEvent *ev, void */*d*/)
1025 if (_buffer == 0 || screen == 0) return 0;
1027 int const x = ev->xbutton.x - ob->x;
1028 int const y = ev->xbutton.y - ob->y;
1030 // If we hit an inset, we have the inset coordinates in these
1031 // and inset_hit points to the inset. If we do not hit an
1032 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
1035 Inset * inset_hit = checkInsetHit(inset_x, inset_y);
1037 if (_buffer->the_locking_inset) {
1038 // We are in inset locking mode.
1040 /* LyX does a kind of work-area grabbing for insets.
1041 Only a ButtonPress Event outside the inset will
1042 force a InsetUnlock. */
1043 _buffer->the_locking_inset->
1044 InsetButtonRelease(inset_x, inset_y,
1045 ev->xbutton.button);
1049 selection_possible = false;
1050 if (_buffer->text->cursor.par->table) {
1051 int cell = _buffer->text->
1052 NumberOfCell(_buffer->text->cursor.par,
1053 _buffer->text->cursor.pos);
1054 if (_buffer->text->cursor.par->table->IsContRow(cell) &&
1055 _buffer->text->cursor.par->table->
1056 CellHasContRow(_buffer->text->cursor.par->table->
1057 GetCellAbove(cell))<0) {
1058 _buffer->text->CursorUp();
1062 if (ev->xbutton.button >= 2)
1065 // Make sure that the press was not far from the release
1066 if ((abs(last_click_x - x) >= 5) ||
1067 (abs(last_click_y - y) >= 5)) {
1071 // Did we hit an editable inset?
1072 if (inset_hit != 0) {
1073 // Inset like error, notes and figures
1074 selection_possible = false;
1075 #ifdef WITH_WARNINGS
1076 #warning fix this proper in 0.13
1078 // Following a ref shouldn't issue
1079 // a push on the undo-stack
1080 // anylonger, now that we have
1081 // keybindings for following
1082 // references and returning from
1083 // references. IMHO though, it
1084 // should be the inset's own business
1085 // to push or not push on the undo
1086 // stack. They don't *have* to
1087 // alter the document...
1089 // ...or maybe the SetCursorParUndo()
1090 // below isn't necessary at all anylonger?
1091 if (inset_hit->LyxCode() == Inset::REF_CODE) {
1092 _buffer->text->SetCursorParUndo();
1095 _owner->getMiniBuffer()->Set(inset_hit->EditMessage());
1096 inset_hit->Edit(inset_x, inset_y);
1100 // check whether we want to open a float
1101 if (_buffer->text) {
1104 if (_buffer->text->cursor.pos <
1105 _buffer->text->cursor.par->Last()) {
1106 c = _buffer->text->cursor.par->
1107 GetChar(_buffer->text->cursor.pos);
1109 if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN
1110 || c == LYX_META_FIG || c == LYX_META_TAB
1111 || c == LYX_META_WIDE_FIG || c == LYX_META_WIDE_TAB
1112 || c == LYX_META_ALGORITHM){
1114 } else if (_buffer->text->cursor.pos - 1 >= 0) {
1115 c = _buffer->text->cursor.par->
1116 GetChar(_buffer->text->cursor.pos - 1);
1117 if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN
1118 || c == LYX_META_FIG || c == LYX_META_TAB
1119 || c == LYX_META_WIDE_FIG
1120 || c == LYX_META_WIDE_TAB
1121 || c == LYX_META_ALGORITHM){
1122 // We are one step too far to the right
1123 _buffer->text->CursorLeft();
1129 selection_possible = false;
1134 // Do we want to close a float? (click on the float-label)
1135 if (_buffer->text->cursor.row->par->footnoteflag ==
1136 LyXParagraph::OPEN_FOOTNOTE
1137 && _buffer->text->cursor.pos == 0
1138 && _buffer->text->cursor.row->previous &&
1139 _buffer->text->cursor.row->previous->par->
1140 footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
1141 LyXFont font (LyXFont::ALL_SANE);
1142 font.setSize(LyXFont::SIZE_SMALL);
1144 int box_x = 20; // LYX_PAPER_MARGIN;
1145 box_x += font.textWidth("Mwide-figM", 10);
1147 int screen_first = screen->first;
1150 && y + screen_first > _buffer->text->cursor.y -
1151 _buffer->text->cursor.row->baseline
1152 && y + screen_first < _buffer->text->cursor.y -
1153 _buffer->text->cursor.row->baseline
1154 + font.maxAscent()*1.2 + font.maxDescent()*1.2) {
1156 selection_possible = false;
1161 // Maybe we want to edit a bibitem ale970302
1162 if (_buffer->text->cursor.par->bibkey && x < 20 +
1163 bibitemMaxWidth(textclasslist.TextClass(_buffer->
1164 params.textclass).defaultfont())) {
1165 _buffer->text->cursor.par->bibkey->Edit(0, 0);
1173 * Returns an inset if inset was hit. 0 otherwise.
1174 * If hit, the coordinates are changed relative to the inset.
1175 * Otherwise coordinates are not changed, and false is returned.
1177 Inset * BufferView::checkInsetHit(int & x, int & y)
1182 int y_tmp = y + getScreen()->first;
1184 LyXCursor cursor = _buffer->text->cursor;
1185 if (cursor.pos < cursor.par->Last()
1186 && cursor.par->GetChar(cursor.pos) == LYX_META_INSET
1187 && cursor.par->GetInset(cursor.pos)
1188 && cursor.par->GetInset(cursor.pos)->Editable()) {
1190 // Check whether the inset really was hit
1191 Inset* tmpinset = cursor.par->GetInset(cursor.pos);
1192 LyXFont font = _buffer->text->GetFont(cursor.par, cursor.pos);
1194 && x < cursor.x + tmpinset->Width(font)
1195 && y_tmp > cursor.y - tmpinset->Ascent(font)
1196 && y_tmp < cursor.y + tmpinset->Descent(font)) {
1198 // The origin of an inset is on the baseline
1199 y = y_tmp - (cursor.y);
1202 } else if (cursor.pos - 1 >= 0
1203 && cursor.par->GetChar(cursor.pos - 1) == LYX_META_INSET
1204 && cursor.par->GetInset(cursor.pos - 1)
1205 && cursor.par->GetInset(cursor.pos - 1)->Editable()) {
1206 _buffer->text->CursorLeft();
1207 Inset * result = checkInsetHit(x, y);
1209 _buffer->text->CursorRight();
1219 int BufferView::workAreaExpose()
1221 if (!work_area || !work_area->form->visible)
1224 // this is a hack to ensure that we only call this through
1225 // BufferView::redraw().
1230 static int work_area_width = work_area->w;
1231 static int work_area_height = work_area->h;
1233 bool widthChange = work_area->w != work_area_width;
1234 bool heightChange = work_area->h != work_area_height;
1236 // update from work area
1237 work_area_width = work_area->w;
1238 work_area_height = work_area->h;
1241 // All buffers need a resize
1242 bufferlist.resize();
1243 } else if (heightChange) {
1244 // Rebuild image of current screen
1246 // fitCursor() ensures we don't jump back
1247 // to the start of the document on vertical
1251 // The main window size has changed, repaint most stuff
1253 // ...including the minibuffer
1254 _owner->getMiniBuffer()->Init();
1256 } else if (screen) screen->Redraw();
1258 // Grey box when we don't have a buffer
1259 fl_winset(FL_ObjWin(work_area));
1260 fl_rectangle(1, work_area->x, work_area->y,
1261 work_area->w, work_area->h, FL_GRAY63);
1264 // always make sure that the scrollbar is sane.
1266 _owner->updateLayoutChoice();
1271 // Callback for cursor timer
1272 void BufferView::CursorToggleCB(FL_OBJECT * ob, long)
1274 BufferView *view = static_cast<BufferView*>(ob->u_vdata);
1276 /* quite a nice place for asyncron Inset updating, isn't it? */
1277 // actually no! This is run even if no buffer exist... so (Lgb)
1278 if (view && !view->_buffer) {
1279 goto set_timer_and_return;
1283 // On my quest to solve the gs rendre hangups I am now
1284 // disabling the SIGHUP completely, and will do a wait
1285 // now and then instead. If the guess that xforms somehow
1286 // destroys something is true, this is likely (hopefully)
1287 // to solve the problem...at least I hope so. Lgb
1289 // ...Ok this seems to work...at least it does not make things
1290 // worse so far. However I still see gs processes that hangs.
1291 // I would really like to know _why_ they are hanging. Anyway
1292 // the solution without the SIGCHLD handler seems to be easier
1295 // When attaching gdb to a a running gs that hangs it shows
1296 // that it is waiting for input(?) Is it possible for us to
1297 // provide that input somehow? Or figure what it is expecing
1300 // One solution is to, after some time, look if there are some
1301 // old gs processes still running and if there are: kill them
1304 // Another solution is to provide the user an option to rerender
1305 // a picture. This would, for the picture in question, check if
1306 // there is a gs running for it, if so kill it, and start a new
1307 // rendering process.
1309 // these comments posted to lyx@via
1312 int pid = waitpid((pid_t)0, &status, WNOHANG);
1313 if (pid == -1) // error find out what is wrong
1314 ; // ignore it for now.
1316 sigchldhandler(pid, &status);
1318 if (InsetUpdateList)
1319 UpdateInsetUpdateList();
1321 if (view && !view->screen){
1322 goto set_timer_and_return;
1325 if (view->lyx_focus && view->work_area_focus) {
1326 if (!view->_buffer->the_locking_inset){
1327 view->screen->CursorToggle();
1329 view->_buffer->the_locking_inset->
1330 ToggleInsetCursor();
1332 goto set_timer_and_return;
1334 // Make sure that the cursor is visible.
1335 if (!view->_buffer->the_locking_inset){
1336 view->screen->ShowCursor();
1338 if (!view->_buffer->the_locking_inset->isCursorVisible())
1339 view->_buffer->the_locking_inset->
1340 ToggleInsetCursor();
1343 // This is only run when work_area_focus or lyx_focus is false.
1346 XGetInputFocus(fl_display, &tmpwin, &tmp);
1347 if (lyxerr.debugging()) {
1348 lyxerr << "tmpwin: " << tmpwin
1349 << "\nwindow: " << view->_owner->getForm()->window
1350 << "\nwork_area_focus: " << view->work_area_focus
1351 << "\nlyx_focus : " << view->lyx_focus
1354 if (tmpwin != view->_owner->getForm()->window) {
1355 view->lyx_focus = false;
1358 view->lyx_focus = true;
1359 if (!view->work_area_focus)
1362 goto set_timer_and_return;
1366 set_timer_and_return:
1367 fl_set_timer(ob, 0.4);
1373 int BufferView::WorkAreaSelectionNotify(FL_OBJECT *, Window win,
1374 int /*w*/, int /*h*/, XEvent *event, void */*d*/)
1376 if (_buffer == 0) return 0;
1377 if (event->type != SelectionNotify)
1383 unsigned char * uc = 0;
1385 screen->HideCursor();
1387 if (event->xselection.type == XA_STRING
1388 && event->xselection.property) {
1390 if (XGetWindowProperty(
1391 fl_display /* display */,
1393 event->xselection.property /* property */,
1394 0 /* long_offset */,
1395 0 /* long_length */,
1397 XA_STRING /* req_type */,
1398 &tmpatom /* actual_type_return */,
1399 &tmpint /* actual_format_return */,
1400 &ul1 /* nitems_return */,
1401 &ul2 /* bytes_after_return */,
1402 &uc /* prop_return */
1413 if (XGetWindowProperty(
1414 fl_display /* display */,
1416 event->xselection.property /* property */,
1417 0 /* long_offset */,
1418 ul2/4+1 /* long_length */,
1420 XA_STRING /* req_type */,
1421 &tmpatom /* actual_type_return */,
1422 &tmpint /* actual_format_return */,
1423 &ul1 /* nitems_return */,
1424 &ul2 /* bytes_after_return */,
1425 &uc /* prop_return */
1434 InsertStringA(reinterpret_cast<char*>(uc));
1437 InsertStringB(reinterpret_cast<char*>(uc));
1449 void BufferView::cursorPrevious()
1451 if (!currentBuffer()->text->cursor.row->previous) return;
1453 long y = getScreen()->first;
1454 Row * cursorrow = currentBuffer()->text->cursor.row;
1455 currentBuffer()->text->
1456 SetCursorFromCoordinates(currentBuffer()->text->
1459 currentBuffer()->text->FinishUndo();
1460 /* this is to allow jumping over large insets */
1461 if ((cursorrow == currentBuffer()->text->cursor.row))
1462 currentBuffer()->text->CursorUp();
1464 if (currentBuffer()->text->cursor.row->height < work_area->h)
1465 getScreen()->Draw(currentBuffer()->text->cursor.y
1466 - currentBuffer()->text->cursor.row->baseline
1467 + currentBuffer()->text->cursor.row->height
1468 - work_area->h +1 );
1472 void BufferView::cursorNext()
1474 if (!currentBuffer()->text->cursor.row->next) return;
1476 long y = getScreen()->first;
1477 currentBuffer()->text->GetRowNearY(y);
1478 Row* cursorrow = currentBuffer()->text->cursor.row;
1479 currentBuffer()->text->
1480 SetCursorFromCoordinates(currentBuffer()->text->
1483 currentBuffer()->text->FinishUndo();
1484 /* this is to allow jumping over large insets */
1485 if ((cursorrow == currentBuffer()->text->cursor.row))
1486 currentBuffer()->text->CursorDown();
1488 if (currentBuffer()->text->cursor.row->height < work_area->h)
1489 getScreen()->Draw(currentBuffer()->text->cursor.y
1490 - currentBuffer()->text->cursor.row->baseline);
1494 bool BufferView::available() const
1496 if (_buffer && _buffer->text) return true;
1501 void BufferView::savePosition()
1503 backstack.push(currentBuffer()->getFileName(),
1504 currentBuffer()->text->cursor.x,
1505 currentBuffer()->text->cursor.y);
1509 void BufferView::restorePosition()
1511 if (backstack.empty()) return;
1514 string fname = backstack.pop(&x, &y);
1517 Buffer * b = (bufferlist.exists(fname)) ? bufferlist.getBuffer(fname):
1518 bufferlist.loadLyXFile(fname); // don't ask, just load it
1520 currentBuffer()->text->SetCursorFromCoordinates(x, y);
1521 currentBuffer()->update(0);