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;
527 a = XInternAtom(fl_display, "WAIT_FOR_X", False);
530 XSetWindowAttributes attr;
531 mask = CWOverrideRedirect;
532 attr.override_redirect = 1;
533 w = XCreateWindow(fl_display, fl_root,
534 0, 0, 1, 1, 0, CopyFromParent,
535 InputOnly, CopyFromParent, mask, &attr);
536 XSelectInput(fl_display, w, PropertyChangeMask);
537 XMapWindow(fl_display, w);
540 XChangeProperty(fl_display, w, a, a, 8,
541 PropModeAppend, reinterpret_cast<unsigned char*>(""), 0);
542 XWindowEvent(fl_display, w, PropertyChangeMask, &ev);
544 XSync(fl_get_display(), 0);
548 // Callback for scrollbar slider
549 void BufferView::ScrollCB(FL_OBJECT * ob, long)
551 BufferView *view = static_cast<BufferView*>(ob->u_vdata);
552 extern bool cursor_follows_scrollbar;
554 if (view->_buffer == 0) return;
556 view->current_scrollbar_value = long(fl_get_slider_value(ob));
557 if (view->current_scrollbar_value < 0)
558 view->current_scrollbar_value = 0;
563 view->screen->Draw(view->current_scrollbar_value);
565 if (cursor_follows_scrollbar) {
566 LyXText * vbt = view->_buffer->text;
567 int height = vbt->DefaultHeight();
569 if (vbt->cursor.y < view->screen->first + height) {
570 vbt->SetCursorFromCoordinates(0,
571 view->screen->first +
574 else if (vbt->cursor.y >
575 view->screen->first + view->work_area->h - height) {
576 vbt->SetCursorFromCoordinates(0,
577 view->screen->first +
586 // Callback for scrollbar down button
587 void BufferView::DownCB(FL_OBJECT * ob, long)
589 BufferView * view = static_cast<BufferView*>(ob->u_vdata);
591 if (view->_buffer == 0) return;
594 static long time = 0;
595 ev2 = fl_last_event();
596 if (ev2->type == ButtonPress || ev2->type == ButtonRelease)
598 int button = fl_get_button_numb(ob);
601 view->ScrollUpOnePage(time++); break;
603 view->ScrollDownOnePage(time++); break;
605 view->ScrollDown(time++); break;
610 int BufferView::ScrollUp(long time)
612 if (_buffer == 0) return 0;
616 double value= fl_get_slider_value(scrollbar);
621 float add_value = (_buffer->text->DefaultHeight()
622 + float(time) * float(time) * 0.125);
624 if (add_value > work_area->h)
625 add_value = float(work_area->h -
626 _buffer->text->DefaultHeight());
633 fl_set_slider_value(scrollbar, value);
635 ScrollCB(scrollbar, 0);
640 int BufferView::ScrollDown(long time)
642 if (_buffer == 0) return 0;
646 double value= fl_get_slider_value(scrollbar);
648 fl_get_slider_bounds(scrollbar, &min, &max);
653 float add_value = (_buffer->text->DefaultHeight()
654 + float(time) * float(time) * 0.125);
656 if (add_value > work_area->h)
657 add_value = float(work_area->h -
658 _buffer->text->DefaultHeight());
665 fl_set_slider_value(scrollbar, value);
667 ScrollCB(scrollbar, 0);
672 void BufferView::ScrollUpOnePage(long /*time*/)
674 if (_buffer == 0) return;
678 long y = screen->first;
682 Row* row = _buffer->text->GetRowNearY(y);
683 y = y - work_area->h + row->height;
685 fl_set_slider_value(scrollbar, y);
687 ScrollCB(scrollbar, 0);
691 void BufferView::ScrollDownOnePage(long /*time*/)
693 if (_buffer == 0) return;
698 fl_get_slider_bounds(scrollbar, &min, &max);
699 long y = screen->first;
701 if (y > _buffer->text->height - work_area->h)
705 _buffer->text->GetRowNearY(y);
707 fl_set_slider_value(scrollbar, y);
709 ScrollCB(scrollbar, 0);
713 int BufferView::work_area_handler(FL_OBJECT * ob, int event,
715 int /*key*/, void *xev)
717 static int x_old = -1;
718 static int y_old = -1;
719 static long scrollbar_value_old = -1;
721 XEvent * ev = static_cast<XEvent*>(xev);
722 BufferView * view = static_cast<BufferView*>(ob->u_vdata);
724 // If we don't have a view yet; return
725 if (!view || quitting) return 0;
729 view->workAreaExpose();
732 view->WorkAreaButtonPress(ob, 0,0,0,ev,0);
735 view->WorkAreaButtonRelease(ob, 0,0,0,ev,0);
738 if (ev->xmotion.x != x_old ||
739 ev->xmotion.y != y_old ||
740 view->current_scrollbar_value != scrollbar_value_old) {
741 x_old = ev->xmotion.x;
742 y_old = ev->xmotion.y;
743 scrollbar_value_old = view->current_scrollbar_value;
744 view->WorkAreaMotionNotify(ob, 0,0,0,ev,0);
747 // Done by the raw callback:
748 // case FL_KEYBOARD: WorkAreaKeyPress(ob, 0,0,0,ev,0); break;
750 if (!view->_owner->getMiniBuffer()->shows_no_match)
751 view->_owner->getMiniBuffer()->Init();
752 view->_owner->getMiniBuffer()->shows_no_match = false;
753 view->work_area_focus = true;
754 fl_set_timer(view->timer_cursor, 0.4);
757 view->_owner->getMiniBuffer()->ExecCommand();
758 view->work_area_focus = false;
761 SetXtermCursor(view->_owner->getForm()->window);
763 view->lyx_focus = true;
764 fl_set_timer(view->timer_cursor, 0.4);
767 if (!input_prohibited)
768 XUndefineCursor(fl_display,
769 view->_owner->getForm()->window);
770 view->lyx_focus = false; // This is not an absolute truth
771 // but if it is not true, it will be changed within a blink
772 // of an eye. ... Not good enough... use regulare timeperiod
773 //fl_set_timer(view->timer_cursor, 0.01); // 0.1 sec blink
774 fl_set_timer(view->timer_cursor, 0.4); // 0.4 sec blink
778 if (view->_buffer && !view->_buffer->the_locking_inset) {
779 if (view->screen && ev->xbutton.button == 1) {
780 view->screen->HideCursor();
781 view->screen->ToggleSelection();
782 view->_buffer->text->SelectWord();
783 view->screen->ToggleSelection(false);
784 /* This will fit the cursor on the screen
786 view->_buffer->update(0);
792 if (view->_buffer && view->screen && ev->xbutton.button == 1) {
793 view->screen->HideCursor();
794 view->screen->ToggleSelection();
795 view->_buffer->text->CursorHome();
796 view->_buffer->text->sel_cursor =
797 view->_buffer->text->cursor;
798 view->_buffer->text->CursorEnd();
799 view->_buffer->text->SetSelection();
800 view->screen->ToggleSelection(false);
801 /* This will fit the cursor on the screen
803 view->_buffer->update(0);
807 view->WorkAreaSelectionNotify(ob,
808 view->_owner->getForm()->window,
815 int BufferView::WorkAreaMotionNotify(FL_OBJECT *ob, Window,
816 int /*w*/, int /*h*/,
817 XEvent *ev, void */*d*/)
820 if (_buffer == 0) return 0;
821 if (!screen) return 0;
823 // Check for inset locking
824 if (_buffer->the_locking_inset) {
825 LyXCursor cursor = _buffer->text->cursor;
826 _buffer->the_locking_inset->
827 InsetMotionNotify(ev->xbutton.x - ob->x - cursor.x,
828 ev->xbutton.y - ob->y -
834 // Only use motion with button 1
835 if (!ev->xmotion.state & Button1MotionMask)
838 /* The selection possible is needed, that only motion events are
839 * used, where the bottom press event was on the drawing area too */
840 if (selection_possible) {
841 screen->HideCursor();
844 SetCursorFromCoordinates(ev->xbutton.x - ob->x,
845 ev->xbutton.y - ob->y +
848 if (!_buffer->text->selection)
849 _buffer->update(-3); // Maybe an empty line was deleted
851 _buffer->text->SetSelection();
852 screen->ToggleToggle();
853 if (screen->FitCursor())
855 screen->ShowCursor();
861 extern int bibitemMaxWidth(LyXFont const &);
863 // Single-click on work area
864 int BufferView::WorkAreaButtonPress(FL_OBJECT *ob, Window,
865 int /*w*/, int /*h*/, XEvent *ev, void */*d*/)
870 if (_buffer == 0) return 0;
871 if (!screen) return 0;
873 int const x = ev->xbutton.x - ob->x;
874 int const y = ev->xbutton.y - ob->y;
875 // If we hit an inset, we have the inset coordinates in these
876 // and inset_hit points to the inset. If we do not hit an
877 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
880 Inset * inset_hit = checkInsetHit(inset_x, inset_y);
882 // ok ok, this is a hack.
883 int button = ev->xbutton.button;
884 if (button == 4 || button == 5) goto wheel;
888 if (_buffer->the_locking_inset) {
889 // We are in inset locking mode
891 /* Check whether the inset was hit. If not reset mode,
892 otherwise give the event to the inset */
893 if (inset_hit != 0) {
894 _buffer->the_locking_inset->
895 InsetButtonPress(inset_x, inset_y, button);
898 UnlockInset(_buffer->the_locking_inset);
902 selection_possible = true;
903 screen->HideCursor();
905 // Right button mouse click on a table
907 (_buffer->text->cursor.par->table ||
908 _buffer->text->MouseHitInTable(x, y+screen->first))) {
909 // Set the cursor to the press-position
910 _buffer->text->SetCursorFromCoordinates(x, y + screen->first);
913 // Only show the table popup if the hit is in the table, too
914 if (!_buffer->text->HitInTable(_buffer->text->cursor.row, x))
917 // Hit above or below the table?
919 if (!_buffer->text->selection) {
920 screen->ToggleSelection();
921 _buffer->text->ClearSelection();
922 _buffer->text->FullRebreak();
926 // Popup table popup when on a table.
927 // This is obviously temporary, since we should be
929 // popup various context-sensitive-menus with the
930 // the right mouse. So this should be done more
931 // general in the future. Matthias.
932 selection_possible = false;
933 _owner->getLyXFunc()->Dispatch(LFUN_LAYOUT_TABLE,
939 int screen_first = screen->first;
941 // Middle button press pastes if we have a selection
942 bool paste_internally = false;
943 if (button == 2 // && !_buffer->the_locking_inset
944 && _buffer->text->selection) {
945 _owner->getLyXFunc()->Dispatch(LFUN_COPY);
946 paste_internally = true;
949 // Clear the selection
950 screen->ToggleSelection();
951 _buffer->text->ClearSelection();
952 _buffer->text->FullRebreak();
956 // Single left click in math inset?
957 if (inset_hit != 0 && inset_hit->Editable() == 2) {
958 // Highly editable inset, like math
959 selection_possible = false;
960 _owner->updateLayoutChoice();
961 _owner->getMiniBuffer()->Set(inset_hit->EditMessage());
962 inset_hit->Edit(inset_x, inset_y);
966 // Right click on a footnote flag opens float menu
968 selection_possible = false;
972 _buffer->text->SetCursorFromCoordinates(x, y + screen_first);
973 _buffer->text->FinishUndo();
974 _buffer->text->sel_cursor = _buffer->text->cursor;
975 _buffer->text->cursor.x_fix = _buffer->text->cursor.x;
977 _owner->updateLayoutChoice();
978 if (screen->FitCursor()){
980 selection_possible = false;
983 // Insert primary selection with middle mouse
984 // if there is a local selection in the current buffer, insert this
985 if (button == 2) { // && !_buffer->the_locking_inset){
986 if (paste_internally)
987 _owner->getLyXFunc()->Dispatch(LFUN_PASTE);
989 _owner->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
991 selection_possible = false;
997 // I am not quite sure if this is the correct place to put this,
998 // but it will not cause any harm.
999 // Patch from Mark Huang (markman@mit.edu) to make LyX recognise
1000 // button 4 and 5. This enables LyX use use the scrollwhell on
1001 // certain mice for something useful. (Lgb)
1002 // Added wheel acceleration detection code. (Rvdk)
1003 static Time lastTime = 0;
1004 int diff = ev->xbutton.time - lastTime;
1005 int scroll = int(1.0 + (4.0/(abs(diff)+1.0))*200.0);
1014 lastTime = ev->xbutton.time;
1025 int BufferView::WorkAreaButtonRelease(FL_OBJECT *ob, Window ,
1026 int /*w*/, int /*h*/, XEvent *ev, void */*d*/)
1028 if (_buffer == 0 || screen == 0) return 0;
1030 int const x = ev->xbutton.x - ob->x;
1031 int const y = ev->xbutton.y - ob->y;
1033 // If we hit an inset, we have the inset coordinates in these
1034 // and inset_hit points to the inset. If we do not hit an
1035 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
1038 Inset * inset_hit = checkInsetHit(inset_x, inset_y);
1040 if (_buffer->the_locking_inset) {
1041 // We are in inset locking mode.
1043 /* LyX does a kind of work-area grabbing for insets.
1044 Only a ButtonPress Event outside the inset will
1045 force a InsetUnlock. */
1046 _buffer->the_locking_inset->
1047 InsetButtonRelease(inset_x, inset_y,
1048 ev->xbutton.button);
1052 selection_possible = false;
1053 if (_buffer->text->cursor.par->table) {
1054 int cell = _buffer->text->
1055 NumberOfCell(_buffer->text->cursor.par,
1056 _buffer->text->cursor.pos);
1057 if (_buffer->text->cursor.par->table->IsContRow(cell) &&
1058 _buffer->text->cursor.par->table->
1059 CellHasContRow(_buffer->text->cursor.par->table->
1060 GetCellAbove(cell))<0) {
1061 _buffer->text->CursorUp();
1065 if (ev->xbutton.button >= 2)
1068 // Make sure that the press was not far from the release
1069 if ((abs(last_click_x - x) >= 5) ||
1070 (abs(last_click_y - y) >= 5)) {
1074 // Did we hit an editable inset?
1075 if (inset_hit != 0) {
1076 // Inset like error, notes and figures
1077 selection_possible = false;
1078 #ifdef WITH_WARNINGS
1079 #warning fix this proper in 0.13
1081 // Following a ref shouldn't issue
1082 // a push on the undo-stack
1083 // anylonger, now that we have
1084 // keybindings for following
1085 // references and returning from
1086 // references. IMHO though, it
1087 // should be the inset's own business
1088 // to push or not push on the undo
1089 // stack. They don't *have* to
1090 // alter the document...
1092 // ...or maybe the SetCursorParUndo()
1093 // below isn't necessary at all anylonger?
1094 if (inset_hit->LyxCode() == Inset::REF_CODE) {
1095 _buffer->text->SetCursorParUndo();
1098 _owner->getMiniBuffer()->Set(inset_hit->EditMessage());
1099 inset_hit->Edit(inset_x, inset_y);
1103 // check whether we want to open a float
1104 if (_buffer->text) {
1107 if (_buffer->text->cursor.pos <
1108 _buffer->text->cursor.par->Last()) {
1109 c = _buffer->text->cursor.par->
1110 GetChar(_buffer->text->cursor.pos);
1112 if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN
1113 || c == LYX_META_FIG || c == LYX_META_TAB
1114 || c == LYX_META_WIDE_FIG || c == LYX_META_WIDE_TAB
1115 || c == LYX_META_ALGORITHM){
1117 } else if (_buffer->text->cursor.pos - 1 >= 0) {
1118 c = _buffer->text->cursor.par->
1119 GetChar(_buffer->text->cursor.pos - 1);
1120 if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN
1121 || c == LYX_META_FIG || c == LYX_META_TAB
1122 || c == LYX_META_WIDE_FIG
1123 || c == LYX_META_WIDE_TAB
1124 || c == LYX_META_ALGORITHM){
1125 // We are one step too far to the right
1126 _buffer->text->CursorLeft();
1132 selection_possible = false;
1137 // Do we want to close a float? (click on the float-label)
1138 if (_buffer->text->cursor.row->par->footnoteflag ==
1139 LyXParagraph::OPEN_FOOTNOTE
1140 && _buffer->text->cursor.pos == 0
1141 && _buffer->text->cursor.row->previous &&
1142 _buffer->text->cursor.row->previous->par->
1143 footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
1144 LyXFont font (LyXFont::ALL_SANE);
1145 font.setSize(LyXFont::SIZE_SMALL);
1147 int box_x = 20; // LYX_PAPER_MARGIN;
1148 box_x += font.textWidth("Mwide-figM", 10);
1150 int screen_first = screen->first;
1153 && y + screen_first > _buffer->text->cursor.y -
1154 _buffer->text->cursor.row->baseline
1155 && y + screen_first < _buffer->text->cursor.y -
1156 _buffer->text->cursor.row->baseline
1157 + font.maxAscent()*1.2 + font.maxDescent()*1.2) {
1159 selection_possible = false;
1164 // Maybe we want to edit a bibitem ale970302
1165 if (_buffer->text->cursor.par->bibkey && x < 20 +
1166 bibitemMaxWidth(textclasslist.TextClass(_buffer->
1167 params.textclass).defaultfont())) {
1168 _buffer->text->cursor.par->bibkey->Edit(0, 0);
1176 * Returns an inset if inset was hit. 0 otherwise.
1177 * If hit, the coordinates are changed relative to the inset.
1178 * Otherwise coordinates are not changed, and false is returned.
1180 Inset * BufferView::checkInsetHit(int & x, int & y)
1185 int y_tmp = y + getScreen()->first;
1187 LyXCursor cursor = _buffer->text->cursor;
1188 if (cursor.pos < cursor.par->Last()
1189 && cursor.par->GetChar(cursor.pos) == LYX_META_INSET
1190 && cursor.par->GetInset(cursor.pos)
1191 && cursor.par->GetInset(cursor.pos)->Editable()) {
1193 // Check whether the inset really was hit
1194 Inset* tmpinset = cursor.par->GetInset(cursor.pos);
1195 LyXFont font = _buffer->text->GetFont(cursor.par, cursor.pos);
1197 && x < cursor.x + tmpinset->Width(font)
1198 && y_tmp > cursor.y - tmpinset->Ascent(font)
1199 && y_tmp < cursor.y + tmpinset->Descent(font)) {
1201 // The origin of an inset is on the baseline
1202 y = y_tmp - (cursor.y);
1205 } else if (cursor.pos - 1 >= 0
1206 && cursor.par->GetChar(cursor.pos - 1) == LYX_META_INSET
1207 && cursor.par->GetInset(cursor.pos - 1)
1208 && cursor.par->GetInset(cursor.pos - 1)->Editable()) {
1209 _buffer->text->CursorLeft();
1210 Inset * result = checkInsetHit(x, y);
1212 _buffer->text->CursorRight();
1222 int BufferView::workAreaExpose()
1224 if (!work_area || !work_area->form->visible)
1227 // this is a hack to ensure that we only call this through
1228 // BufferView::redraw().
1233 static int work_area_width = work_area->w;
1234 static int work_area_height = work_area->h;
1236 bool widthChange = work_area->w != work_area_width;
1237 bool heightChange = work_area->h != work_area_height;
1239 // update from work area
1240 work_area_width = work_area->w;
1241 work_area_height = work_area->h;
1244 // All buffers need a resize
1245 bufferlist.resize();
1246 } else if (heightChange) {
1247 // Rebuild image of current screen
1249 // fitCursor() ensures we don't jump back
1250 // to the start of the document on vertical
1254 // The main window size has changed, repaint most stuff
1256 // ...including the minibuffer
1257 _owner->getMiniBuffer()->Init();
1259 } else if (screen) screen->Redraw();
1261 // Grey box when we don't have a buffer
1262 fl_winset(FL_ObjWin(work_area));
1263 fl_rectangle(1, work_area->x, work_area->y,
1264 work_area->w, work_area->h, FL_GRAY63);
1267 // always make sure that the scrollbar is sane.
1269 _owner->updateLayoutChoice();
1274 // Callback for cursor timer
1275 void BufferView::CursorToggleCB(FL_OBJECT * ob, long)
1277 BufferView *view = static_cast<BufferView*>(ob->u_vdata);
1279 /* quite a nice place for asyncron Inset updating, isn't it? */
1280 // actually no! This is run even if no buffer exist... so (Lgb)
1281 if (view && !view->_buffer) {
1282 goto set_timer_and_return;
1286 // On my quest to solve the gs rendre hangups I am now
1287 // disabling the SIGHUP completely, and will do a wait
1288 // now and then instead. If the guess that xforms somehow
1289 // destroys something is true, this is likely (hopefully)
1290 // to solve the problem...at least I hope so. Lgb
1292 // ...Ok this seems to work...at least it does not make things
1293 // worse so far. However I still see gs processes that hangs.
1294 // I would really like to know _why_ they are hanging. Anyway
1295 // the solution without the SIGCHLD handler seems to be easier
1298 // When attaching gdb to a a running gs that hangs it shows
1299 // that it is waiting for input(?) Is it possible for us to
1300 // provide that input somehow? Or figure what it is expecing
1303 // One solution is to, after some time, look if there are some
1304 // old gs processes still running and if there are: kill them
1307 // Another solution is to provide the user an option to rerender
1308 // a picture. This would, for the picture in question, check if
1309 // there is a gs running for it, if so kill it, and start a new
1310 // rendering process.
1312 // these comments posted to lyx@via
1315 int pid = waitpid((pid_t)0, &status, WNOHANG);
1316 if (pid == -1) // error find out what is wrong
1317 ; // ignore it for now.
1319 sigchldhandler(pid, &status);
1321 if (InsetUpdateList)
1322 UpdateInsetUpdateList();
1324 if (view && !view->screen){
1325 goto set_timer_and_return;
1328 if (view->lyx_focus && view->work_area_focus) {
1329 if (!view->_buffer->the_locking_inset){
1330 view->screen->CursorToggle();
1332 view->_buffer->the_locking_inset->
1333 ToggleInsetCursor();
1335 goto set_timer_and_return;
1337 // Make sure that the cursor is visible.
1338 if (!view->_buffer->the_locking_inset){
1339 view->screen->ShowCursor();
1341 if (!view->_buffer->the_locking_inset->isCursorVisible())
1342 view->_buffer->the_locking_inset->
1343 ToggleInsetCursor();
1346 // This is only run when work_area_focus or lyx_focus is false.
1349 XGetInputFocus(fl_display, &tmpwin, &tmp);
1350 if (lyxerr.debugging()) {
1351 lyxerr << "tmpwin: " << tmpwin
1352 << "\nwindow: " << view->_owner->getForm()->window
1353 << "\nwork_area_focus: " << view->work_area_focus
1354 << "\nlyx_focus : " << view->lyx_focus
1357 if (tmpwin != view->_owner->getForm()->window) {
1358 view->lyx_focus = false;
1361 view->lyx_focus = true;
1362 if (!view->work_area_focus)
1365 goto set_timer_and_return;
1369 set_timer_and_return:
1370 fl_set_timer(ob, 0.4);
1376 int BufferView::WorkAreaSelectionNotify(FL_OBJECT *, Window win,
1377 int /*w*/, int /*h*/, XEvent *event, void */*d*/)
1379 if (_buffer == 0) return 0;
1380 if (event->type != SelectionNotify)
1386 unsigned char * uc = 0;
1388 screen->HideCursor();
1390 if (event->xselection.type == XA_STRING
1391 && event->xselection.property) {
1393 if (XGetWindowProperty(
1394 fl_display /* display */,
1396 event->xselection.property /* property */,
1397 0 /* long_offset */,
1398 0 /* long_length */,
1400 XA_STRING /* req_type */,
1401 &tmpatom /* actual_type_return */,
1402 &tmpint /* actual_format_return */,
1403 &ul1 /* nitems_return */,
1404 &ul2 /* bytes_after_return */,
1405 &uc /* prop_return */
1416 if (XGetWindowProperty(
1417 fl_display /* display */,
1419 event->xselection.property /* property */,
1420 0 /* long_offset */,
1421 ul2/4+1 /* long_length */,
1423 XA_STRING /* req_type */,
1424 &tmpatom /* actual_type_return */,
1425 &tmpint /* actual_format_return */,
1426 &ul1 /* nitems_return */,
1427 &ul2 /* bytes_after_return */,
1428 &uc /* prop_return */
1437 InsertStringA(reinterpret_cast<char*>(uc));
1440 InsertStringB(reinterpret_cast<char*>(uc));
1452 void BufferView::cursorPrevious()
1454 if (!currentBuffer()->text->cursor.row->previous) return;
1456 long y = getScreen()->first;
1457 Row * cursorrow = currentBuffer()->text->cursor.row;
1458 currentBuffer()->text->
1459 SetCursorFromCoordinates(currentBuffer()->text->
1462 currentBuffer()->text->FinishUndo();
1463 /* this is to allow jumping over large insets */
1464 if ((cursorrow == currentBuffer()->text->cursor.row))
1465 currentBuffer()->text->CursorUp();
1467 if (currentBuffer()->text->cursor.row->height < work_area->h)
1468 getScreen()->Draw(currentBuffer()->text->cursor.y
1469 - currentBuffer()->text->cursor.row->baseline
1470 + currentBuffer()->text->cursor.row->height
1471 - work_area->h +1 );
1475 void BufferView::cursorNext()
1477 if (!currentBuffer()->text->cursor.row->next) return;
1479 long y = getScreen()->first;
1480 currentBuffer()->text->GetRowNearY(y);
1481 Row* cursorrow = currentBuffer()->text->cursor.row;
1482 currentBuffer()->text->
1483 SetCursorFromCoordinates(currentBuffer()->text->
1486 currentBuffer()->text->FinishUndo();
1487 /* this is to allow jumping over large insets */
1488 if ((cursorrow == currentBuffer()->text->cursor.row))
1489 currentBuffer()->text->CursorDown();
1491 if (currentBuffer()->text->cursor.row->height < work_area->h)
1492 getScreen()->Draw(currentBuffer()->text->cursor.y
1493 - currentBuffer()->text->cursor.row->baseline);
1497 bool BufferView::available() const
1499 if (_buffer && _buffer->text) return true;
1504 void BufferView::savePosition()
1506 backstack.push(currentBuffer()->getFileName(),
1507 currentBuffer()->text->cursor.x,
1508 currentBuffer()->text->cursor.y);
1512 void BufferView::restorePosition()
1514 if (backstack.empty()) return;
1517 string fname = backstack.pop(&x, &y);
1520 Buffer * b = (bufferlist.exists(fname)) ? bufferlist.getBuffer(fname):
1521 bufferlist.loadLyXFile(fname); // don't ask, just load it
1523 currentBuffer()->text->SetCursorFromCoordinates(x, y);
1524 currentBuffer()->update(0);