// -*- C++ -*- /* This file is part of * ====================================================== * * LyX, The Document Processor * * Copyright 1995 Matthias Ettrich * Copyright 1995-1999 The LyX Team. * * ======================================================*/ #include #include #include #include #include #include "support/lstrings.h" #ifdef __GNUG__ #pragma implementation #endif #include "commandtags.h" #include "BufferView.h" #include "bufferlist.h" #include "LyXView.h" #include "lyxfunc.h" #include "insets/lyxinset.h" #include "minibuffer.h" #include "lyxscreen.h" #include "up.xpm" #include "down.xpm" #include "error.h" #include "lyxdraw.h" #include "lyx_gui_misc.h" #include "BackStack.h" #include "lyxtext.h" #include "lyx_cb.h" #include "gettext.h" extern BufferList bufferlist; void sigchldhandler(pid_t pid, int *status); extern void SetXtermCursor(Window win); extern bool input_prohibited; extern bool selection_possible; extern void BeforeChange(); extern char ascii_type; extern int UnlockInset(UpdatableInset* inset); extern void ToggleFloat(); extern void MenuPasteSelection(char at); extern InsetUpdateStruct *InsetUpdateList; extern void UpdateInsetUpdateList(); // This is _very_ temporary FL_OBJECT *figinset_canvas; BufferView::BufferView(LyXView *o, int xpos, int ypos, int width, int height) : _owner(o) { _buffer = 0; screen = 0; work_area = 0; figinset_canvas = 0; scrollbar = 0; button_down = 0; button_up = 0; timer_cursor = 0; current_scrollbar_value = 0; create_view(xpos, ypos, width, height); // Activate the timer for the cursor fl_set_timer(timer_cursor, 0.4); fl_set_focus_object(_owner->getForm(), work_area); work_area_focus = true; lyx_focus = false; backstack = new BackStack(16); } BufferView::~BufferView() { delete backstack; } void BufferView::setBuffer(Buffer *b) { lyxerr.debug("Setting buffer in BufferView"); if (_buffer) { _buffer->InsetSleep(); _buffer->delUser(this); } // Set current buffer _buffer = b; if (bufferlist.getState() == BufferList::CLOSING) return; // Nuke old image if (screen) delete screen; screen = 0; // If we are closing the buffer, use the first buffer as current if (!_buffer) { _buffer = bufferlist.first(); } if (_buffer) { lyxerr.debug(string(" Buffer addr: ") + tostr(_buffer)); _buffer->addUser(this); _owner->getMenus()->showMenus(); // If we don't have a text object for this, we make one if (_buffer->text == 0) resizeCurrentBuffer(); else { updateScreen(); updateScrollbar(); } screen->first = screen->TopCursorVisible(); redraw(); updateAllVisibleBufferRelatedPopups(); _buffer->InsetWakeup(); } else { lyxerr.debug(" No Buffer!"); _owner->getMenus()->hideMenus(); //workAreaExpose(); updateScrollbar(); fl_redraw_object(work_area); } // should update layoutchoice even if we don't have a buffer. _owner->updateLayoutChoice(); _owner->getMiniBuffer()->Init(); _owner->updateWindowTitle(); } void BufferView::updateScreen() { // Regenerate the screen. if (screen) delete screen; screen = new LyXScreen(FL_ObjWin(work_area), work_area->w, work_area->h, work_area->x, work_area->y, _buffer->text); } void BufferView::resize() { // This will resize the buffer. (Asger) if (_buffer) resizeCurrentBuffer(); } static bool lgb_hack = false; void BufferView::redraw() { lyxerr.debug("BufferView::redraw()"); lgb_hack = true; fl_redraw_object(work_area); fl_redraw_object(scrollbar); fl_redraw_object(button_down); fl_redraw_object(button_up); lgb_hack = false; } void BufferView::fitCursor() { if (screen) screen->FitCursor(); } void BufferView::update() { if (screen) screen->Update(); } void BufferView::updateScrollbar() { /* If the text is smaller than the working area, the scrollbar * maximum must be the working area height. No scrolling will * be possible */ if (!_buffer) { fl_set_slider_value(scrollbar, 0); fl_set_slider_size(scrollbar, scrollbar->h); return; } static long max2 = 0; static long height2 = 0; long cbth = 0; long cbsf = 0; if (_buffer->text) cbth = _buffer->text->height; if (screen) cbsf = screen->first; // check if anything has changed. if (max2 == cbth && height2 == work_area->h && current_scrollbar_value == cbsf) return; // no max2 = cbth; height2 = work_area->h; current_scrollbar_value = cbsf; if (cbth <= height2) { // text is smaller than screen fl_set_slider_size(scrollbar, scrollbar->h); return; } long maximum_height = work_area->h * 3/4 + cbth; long value = cbsf; /* set the scrollbar */ double hfloat = work_area->h; double maxfloat = maximum_height; fl_set_slider_value(scrollbar, value); fl_set_slider_bounds(scrollbar, 0, maximum_height - work_area->h); #if FL_REVISION > 85 double lineh = _buffer->text->DefaultHeight(); fl_set_slider_increment(scrollbar,work_area->h-lineh,lineh); #endif if (maxfloat>0){ if ((hfloat/maxfloat) * (float) height2 < 3) fl_set_slider_size(scrollbar, 3/(float)height2); else fl_set_slider_size(scrollbar, hfloat/maxfloat); } else fl_set_slider_size(scrollbar, hfloat); fl_set_slider_precision(scrollbar, 0); } void BufferView::redoCurrentBuffer() { lyxerr.debug("BufferView::redoCurrentBuffer"); if (_buffer && _buffer->text) { resize(); _owner->updateLayoutChoice(); } } int BufferView::resizeCurrentBuffer() { lyxerr.debug("resizeCurrentBuffer"); LyXParagraph *par = 0; LyXParagraph *selstartpar = 0; LyXParagraph *selendpar = 0; int pos = 0; int selstartpos = 0; int selendpos = 0; int selection = 0; int mark_set = 0; ProhibitInput(); _owner->getMiniBuffer()->Set(_("Formatting document...")); if (_buffer->text) { par = _buffer->text->cursor.par; pos = _buffer->text->cursor.pos; selstartpar = _buffer->text->sel_start_cursor.par; selstartpos = _buffer->text->sel_start_cursor.pos; selendpar = _buffer->text->sel_end_cursor.par; selendpos = _buffer->text->sel_end_cursor.pos; selection = _buffer->text->selection; mark_set = _buffer->text->mark_set; delete _buffer->text; } _buffer->text = new LyXText(work_area->w, _buffer); updateScreen(); if (par) { _buffer->text->selection = true; /* at this point just * to avoid the Delete- * Empty-Paragraph * Mechanism when * setting the cursor */ _buffer->text->mark_set = mark_set; if (selection) { _buffer->text->SetCursor(selstartpar, selstartpos); _buffer->text->sel_cursor = _buffer->text->cursor; _buffer->text->SetCursor(selendpar, selendpos); _buffer->text->SetSelection(); _buffer->text->SetCursor(par, pos); } else { _buffer->text->SetCursor(par, pos); _buffer->text->sel_cursor = _buffer->text->cursor; _buffer->text->selection = false; } } screen->first = screen->TopCursorVisible(); /* this will scroll the * screen such that the * cursor becomes * visible */ updateScrollbar(); redraw(); _owner->getMiniBuffer()->Init(); AllowInput(); // Now if the title form still exist kill it TimerCB(0,0); return 0; } void BufferView::gotoError() { if (!screen) return; screen->HideCursor(); BeforeChange(); _buffer->update(-2); LyXCursor tmp; if (!_buffer->text->GotoNextError()) { if (_buffer->text->cursor.pos || _buffer->text->cursor.par != _buffer->text->FirstParagraph()) { tmp = _buffer->text->cursor; _buffer->text->cursor.par = _buffer->text->FirstParagraph(); _buffer->text->cursor.pos = 0; if (!_buffer->text->GotoNextError()) { _buffer->text->cursor = tmp; _owner->getMiniBuffer()->Set(_("No more errors")); LyXBell(); } } else { _owner->getMiniBuffer()->Set(_("No more errors")); LyXBell(); } } _buffer->update(0); _buffer->text->sel_cursor = _buffer->text->cursor; } void BufferView::create_view(int xpos, int ypos, int width, int height) { FL_OBJECT *obj; const int bw = abs(fl_get_border_width()); // a hack for the figinsets (Matthias) // This one first, then it will probably be invisible. (Lgb) ::figinset_canvas = figinset_canvas = obj = fl_add_canvas(FL_NORMAL_CANVAS, xpos + 1, ypos + 1,1,1,""); fl_set_object_boxtype(obj,FL_NO_BOX); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity); // a box obj = fl_add_box(FL_BORDER_BOX, xpos, ypos, width - 15, height,""); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity); // the free object work_area = obj = fl_add_free(FL_INPUT_FREE, xpos +bw, ypos+bw, width-15-2*bw /* scrollbarwidth */, height-2*bw,"", work_area_handler); obj->wantkey = FL_KEY_TAB; obj->u_vdata = (void*) this; /* This is how we pass the BufferView to the work_area_handler. */ fl_set_object_boxtype(obj,FL_DOWN_BOX); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity); // // THE SCROLLBAR // // up - scrollbar button #if FL_REVISION > 85 fl_set_border_width(-1); #else fl_set_border_width(-2); // to get visible feedback #endif button_up = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON, width-15+4*bw, ypos, 15,15,""); fl_set_object_boxtype(obj,FL_UP_BOX); fl_set_object_color(obj,FL_MCOL,FL_BLUE); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj,NorthEastGravity, NorthEastGravity); fl_set_object_callback(obj,UpCB,(long)this); fl_set_pixmapbutton_data(obj, up_xpm); #if FL_REVISION >85 // Remove the blue feedback rectangle fl_set_pixmapbutton_focus_outline(obj,0); #endif // the scrollbar slider fl_set_border_width(-bw); scrollbar = obj = fl_add_slider(FL_VERT_SLIDER, width-15+4*bw, ypos + 15, 15,height-30,""); fl_set_object_color(obj,FL_COL1,FL_MCOL); fl_set_object_boxtype(obj, FL_UP_BOX); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity); fl_set_object_callback(obj,ScrollCB,(long)this); // down - scrollbar button #if FL_REVISION > 85 fl_set_border_width(-1); #else fl_set_border_width(-2); // to get visible feedback #endif button_down = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON, width-15+4*bw, ypos + height-15, 15,15,""); fl_set_object_boxtype(obj,FL_UP_BOX); fl_set_object_color(obj,FL_MCOL,FL_BLUE); fl_set_object_resize(obj, FL_RESIZE_ALL); fl_set_object_gravity(obj, SouthEastGravity, SouthEastGravity); fl_set_object_callback(obj,DownCB,(long)this); fl_set_pixmapbutton_data(obj, down_xpm); fl_set_border_width(-bw); #if FL_REVISION >85 // Remove the blue feedback rectangle fl_set_pixmapbutton_focus_outline(obj,0); #endif // // TIMERS // // timer_cursor timer_cursor = obj = fl_add_timer(FL_HIDDEN_TIMER, 0,0,0,0,"Timer"); fl_set_object_callback(obj,CursorToggleCB,0); obj->u_vdata = (void*) this; } // Callback for scrollbar up button void BufferView::UpCB(FL_OBJECT *ob, long buf) { BufferView *view = (BufferView*) buf; if (view->_buffer == 0) return; const XEvent*ev2; static long time = 0; ev2 = fl_last_event(); if (ev2->type == ButtonPress || ev2->type == ButtonRelease) time = 0; int button = fl_get_button_numb(ob); switch (button) { case 3: view->ScrollUpOnePage(time++); break; case 2: view->ScrollDownOnePage(time++); break; default: view->ScrollUp(time++); break; } } static void waitForX() { static Window w = 0; static Atom a = 0; if (!a) a = XInternAtom(fl_display, "WAIT_FOR_X", False); if (w == 0) { int mask; XSetWindowAttributes attr; mask = CWOverrideRedirect; attr.override_redirect = 1; w = XCreateWindow(fl_display, fl_root, 0, 0, 1, 1, 0, CopyFromParent, InputOnly, CopyFromParent, mask, &attr); XSelectInput(fl_display, w, PropertyChangeMask); XMapWindow(fl_display, w); } static XEvent ev; XChangeProperty(fl_display, w, a, a, 8, PropModeAppend, (unsigned char *)"", 0); XWindowEvent(fl_display, w, PropertyChangeMask, &ev); } // Callback for scrollbar slider void BufferView::ScrollCB(FL_OBJECT *ob, long buf) { BufferView *view = (BufferView*) buf; extern bool cursor_follows_scrollbar; if (view->_buffer == 0) return; view->current_scrollbar_value = (long)fl_get_slider_value(ob); if (view->current_scrollbar_value < 0) view->current_scrollbar_value = 0; if (!view->screen) return; view->screen->Draw(view->current_scrollbar_value); if (cursor_follows_scrollbar) { LyXText * vbt = view->_buffer->text; int height = vbt->DefaultHeight(); if (vbt->cursor.y < view->screen->first + height) { vbt->SetCursorFromCoordinates(0, view->screen->first + height); } else if (vbt->cursor.y > view->screen->first + view->work_area->h - height) { vbt->SetCursorFromCoordinates(0, view->screen->first + view->work_area->h - height); } } waitForX(); } // Callback for scrollbar down button void BufferView::DownCB(FL_OBJECT *ob, long buf) { BufferView *view = (BufferView*) buf; if (view->_buffer == 0) return; const XEvent*ev2; static long time = 0; ev2 = fl_last_event(); if (ev2->type == ButtonPress || ev2->type == ButtonRelease) time = 0; int button = fl_get_button_numb(ob); switch (button) { case 2: view->ScrollUpOnePage(time++); break; case 3: view->ScrollDownOnePage(time++); break; default: view->ScrollDown(time++); break; } } int BufferView::ScrollUp(long time) { if (_buffer == 0) return 0; if (!screen) return 0; double value= fl_get_slider_value(scrollbar); if (value == 0) return 0; float add_value = (_buffer->text->DefaultHeight() + (float)(time) * (float)(time) * 0.125); if (add_value > work_area->h) add_value = (float) (work_area->h - _buffer->text->DefaultHeight()); value -= add_value; if (value < 0) value = 0; fl_set_slider_value(scrollbar, value); ScrollCB(scrollbar,(long)this); return 0; } int BufferView::ScrollDown(long time) { if (_buffer == 0) return 0; if (!screen) return 0; double value= fl_get_slider_value(scrollbar); double min, max; fl_get_slider_bounds(scrollbar, &min, &max); if (value == max) return 0; float add_value = (_buffer->text->DefaultHeight() + (float)(time) * (float)(time) * 0.125); if (add_value > work_area->h) add_value = (float) (work_area->h - _buffer->text->DefaultHeight()); value += add_value; if (value > max) value = max; fl_set_slider_value(scrollbar, value); ScrollCB(scrollbar,(long)this); return 0; } void BufferView::ScrollUpOnePage(long /*time*/) { if (_buffer == 0) return; if (!screen) return; long y = screen->first; if (!y) return; Row* row = _buffer->text->GetRowNearY(y); y = y - work_area->h + row->height; fl_set_slider_value(scrollbar, y); ScrollCB(scrollbar,(long)this); } void BufferView::ScrollDownOnePage(long /*time*/) { if (_buffer == 0) return; if (!screen) return; double min, max; fl_get_slider_bounds(scrollbar, &min, &max); long y = screen->first; if (y > _buffer->text->height - work_area->h) return; y += work_area->h; _buffer->text->GetRowNearY(y); fl_set_slider_value(scrollbar, y); ScrollCB(scrollbar,(long)this); } int BufferView::work_area_handler(FL_OBJECT * ob, int event, FL_Coord, FL_Coord , int /*key*/, void *xev) { static int x_old = -1; static int y_old = -1; static long scrollbar_value_old = -1; XEvent* ev = (XEvent*) xev; BufferView *view = (BufferView*) ob->u_vdata; // If we don't have a view yet; return if (!view || quitting) return 0; switch (event){ case FL_DRAW: view->workAreaExpose(); break; case FL_PUSH: view->WorkAreaButtonPress(ob, 0,0,0,ev,0); break; case FL_RELEASE: view->WorkAreaButtonRelease(ob, 0,0,0,ev,0); break; case FL_MOUSE: if (ev->xmotion.x != x_old || ev->xmotion.y != y_old || view->current_scrollbar_value != scrollbar_value_old) { x_old = ev->xmotion.x; y_old = ev->xmotion.y; scrollbar_value_old = view->current_scrollbar_value; view->WorkAreaMotionNotify(ob, 0,0,0,ev,0); } break; // Done by the raw callback: // case FL_KEYBOARD: WorkAreaKeyPress(ob, 0,0,0,ev,0); break; case FL_FOCUS: if (!view->_owner->getMiniBuffer()->shows_no_match) view->_owner->getMiniBuffer()->Init(); view->_owner->getMiniBuffer()->shows_no_match = false; view->work_area_focus = true; fl_set_timer(view->timer_cursor, 0.4); break; case FL_UNFOCUS: view->_owner->getMiniBuffer()->ExecCommand(); view->work_area_focus = false; break; case FL_ENTER: SetXtermCursor(view->_owner->getForm()->window); // reset the timer view->lyx_focus = true; fl_set_timer(view->timer_cursor, 0.4); break; case FL_LEAVE: if (!input_prohibited) XUndefineCursor(fl_display, view->_owner->getForm()->window); view->lyx_focus = false; // This is not an absolute truth // but if it is not true, it will be changed within a blink // of an eye. ... Not good enough... use regulare timeperiod //fl_set_timer(view->timer_cursor, 0.01); // 0.1 sec blink fl_set_timer(view->timer_cursor, 0.4); // 0.4 sec blink break; case FL_DBLCLICK: // select a word if (view->_buffer && !view->_buffer->the_locking_inset) { if (view->screen && ev->xbutton.button == 1) { view->screen->HideCursor(); view->screen->ToggleSelection(); view->_buffer->text->SelectWord(); view->screen->ToggleSelection(false); /* This will fit the cursor on the screen * if necessary */ view->_buffer->update(0); } } break; case FL_TRPLCLICK: // select a line if (view->_buffer && view->screen && ev->xbutton.button == 1) { view->screen->HideCursor(); view->screen->ToggleSelection(); view->_buffer->text->CursorHome(); view->_buffer->text->sel_cursor = view->_buffer->text->cursor; view->_buffer->text->CursorEnd(); view->_buffer->text->SetSelection(); view->screen->ToggleSelection(false); /* This will fit the cursor on the screen * if necessary */ view->_buffer->update(0); } break; case FL_OTHER: view->WorkAreaSelectionNotify(ob, view->_owner->getForm()->window, 0,0,ev,0); break; } return 1; } int BufferView::WorkAreaMotionNotify(FL_OBJECT *ob, Window, int /*w*/, int /*h*/, XEvent *ev, void */*d*/) { if (_buffer == 0) return 0; if (!screen) return 0; // Check for inset locking if (_buffer->the_locking_inset) { LyXCursor cursor = _buffer->text->cursor; _buffer->the_locking_inset-> InsetMotionNotify(ev->xbutton.x - ob->x - cursor.x, ev->xbutton.y - ob->y - (cursor.y), ev->xbutton.state); return 0; } // Only use motion with button 1 if (!ev->xmotion.state & Button1MotionMask) return 0; /* The selection possible is needed, that only motion events are * used, where the bottom press event was on the drawing area too */ if (selection_possible) { screen->HideCursor(); _buffer->text-> SetCursorFromCoordinates(ev->xbutton.x - ob->x, ev->xbutton.y - ob->y + screen->first); if (!_buffer->text->selection) _buffer->update(-3); // Maybe an empty line was deleted _buffer->text->SetSelection(); screen->ToggleToggle(); if (screen->FitCursor()) updateScrollbar(); screen->ShowCursor(); } return 0; } extern int bibitemMaxWidth(const class LyXFont &); // Single-click on work area int BufferView::WorkAreaButtonPress(FL_OBJECT *ob, Window, int /*w*/, int /*h*/, XEvent *ev, void */*d*/) { last_click_x = -1; last_click_y = -1; if (_buffer == 0) return 0; if (!screen) return 0; int const x = ev->xbutton.x - ob->x; int const y = ev->xbutton.y - ob->y; // If we hit an inset, we have the inset coordinates in these // and inset_hit points to the inset. If we do not hit an // inset, inset_hit is 0, and inset_x == x, inset_y == y. int inset_x = x; int inset_y = y; Inset * inset_hit = checkInsetHit(inset_x, inset_y); // ok ok, this is a hack. int button = ev->xbutton.button; if (button == 4 || button == 5) goto wheel; { if (_buffer->the_locking_inset) { // We are in inset locking mode /* Check whether the inset was hit. If not reset mode, otherwise give the event to the inset */ if (inset_hit != 0) { _buffer->the_locking_inset-> InsetButtonPress(inset_x, inset_y, button); return 0; } else { UnlockInset(_buffer->the_locking_inset); } } selection_possible = true; screen->HideCursor(); // Right button mouse click on a table if (button == 3 && (_buffer->text->cursor.par->table || _buffer->text->MouseHitInTable(x, y+screen->first))) { // Set the cursor to the press-position _buffer->text->SetCursorFromCoordinates(x, y + screen->first); bool doit = true; // Only show the table popup if the hit is in the table, too if (!_buffer->text->HitInTable(_buffer->text->cursor.row, x)) doit = false; // Hit above or below the table? if (doit) { #if 0 long y_tmp = y + screen->first; Row* row = _buffer->text->GetRowNearY(y_tmp); // Isn't this empty code anyway? (Lgb) if (row->par != _buffer->text->cursor.par) doit = true; } if (doit) { #endif if (!_buffer->text->selection) { screen->ToggleSelection(); _buffer->text->ClearSelection(); _buffer->text->FullRebreak(); screen->Update(); updateScrollbar(); } // Popup table popup when on a table. // This is obviously temporary, since we should be // able to // popup various context-sensitive-menus with the // the right mouse. So this should be done more // general in the future. Matthias. selection_possible = false; _owner->getLyXFunc()->Dispatch(LFUN_LAYOUT_TABLE, "true"); return 0; } } int screen_first = screen->first; // Middle button press pastes if we have a selection bool paste_internally = false; if (button == 2 // && !_buffer->the_locking_inset && _buffer->text->selection) { _owner->getLyXFunc()->Dispatch(LFUN_COPY); paste_internally = true; } // Clear the selection screen->ToggleSelection(); _buffer->text->ClearSelection(); _buffer->text->FullRebreak(); screen->Update(); updateScrollbar(); // Single left click in math inset? if (inset_hit != 0 && inset_hit->Editable() == 2) { // Highly editable inset, like math selection_possible = false; _owner->updateLayoutChoice(); _owner->getMiniBuffer()->Set(inset_hit->EditMessage()); inset_hit->Edit(inset_x, inset_y); return 0; } // Right click on a footnote flag opens float menu if (button == 3) { #if 0 // Isn't this empty code anyway? (Lgb) if (_buffer->text->cursor.par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE) { selection_possible = false; lyxerr.debug("LyX: Sorry not implemented yet."); return 0; } } if (button == 3) { #endif selection_possible = false; return 0; } _buffer->text->SetCursorFromCoordinates(x, y + screen_first); _buffer->text->FinishUndo(); _buffer->text->sel_cursor = _buffer->text->cursor; _buffer->text->cursor.x_fix = _buffer->text->cursor.x; _owner->updateLayoutChoice(); if (screen->FitCursor()){ updateScrollbar(); selection_possible = false; } // Insert primary selection with middle mouse // if there is a local selection in the current buffer, insert this if (button == 2) { // && !_buffer->the_locking_inset){ if (paste_internally) _owner->getLyXFunc()->Dispatch(LFUN_PASTE); else _owner->getLyXFunc()->Dispatch(LFUN_PASTESELECTION, "paragraph"); selection_possible = false; return 0; } } goto out; wheel: { // I am not quite sure if this is the correct place to put this, // but it will not cause any harm. // Patch from Mark Huang (markman@mit.edu) to make LyX recognise // button 4 and 5. This enables LyX use use the scrollwhell on // certain mice for something useful. (Lgb) // Added wheel acceleration detection code. (Rvdk) static Time lastTime = 0; int diff = ev->xbutton.time - lastTime; int scroll = int(1.0 + (4.0/(abs(diff)+1.0))*200.0); switch (button) { case 4: ScrollUp(scroll); break; case 5: ScrollDown(scroll); break; } lastTime = ev->xbutton.time; return 0; } out: last_click_x = x; last_click_y = y; return 0; } int BufferView::WorkAreaButtonRelease(FL_OBJECT *ob, Window , int /*w*/, int /*h*/, XEvent *ev, void */*d*/) { if (_buffer == 0 || screen == 0) return 0; int const x = ev->xbutton.x - ob->x; int const y = ev->xbutton.y - ob->y; // If we hit an inset, we have the inset coordinates in these // and inset_hit points to the inset. If we do not hit an // inset, inset_hit is 0, and inset_x == x, inset_y == y. int inset_x = x; int inset_y = y; Inset * inset_hit = checkInsetHit(inset_x, inset_y); if (_buffer->the_locking_inset) { // We are in inset locking mode. /* LyX does a kind of work-area grabbing for insets. Only a ButtonPress Event outside the inset will force a InsetUnlock. */ _buffer->the_locking_inset-> InsetButtonRelease(inset_x, inset_y, ev->xbutton.button); return 0; } selection_possible = false; if (_buffer->text->cursor.par->table) { int cell = _buffer->text-> NumberOfCell(_buffer->text->cursor.par, _buffer->text->cursor.pos); if (_buffer->text->cursor.par->table->IsContRow(cell) && _buffer->text->cursor.par->table-> CellHasContRow(_buffer->text->cursor.par->table-> GetCellAbove(cell))<0) { _buffer->text->CursorUp(); } } if (ev->xbutton.button >= 2) return 0; // Make sure that the press was not far from the release if ((abs(last_click_x - x) >= 5) || (abs(last_click_y - y) >= 5)) { return 0; } // Did we hit an editable inset? if (inset_hit != 0) { // Inset like error, notes and figures selection_possible = false; #ifdef WITH_WARNINGS #warning fix this proper in 0.13 #endif // Following a ref shouldn't issue // a push on the undo-stack // anylonger, now that we have // keybindings for following // references and returning from // references. IMHO though, it // should be the inset's own business // to push or not push on the undo // stack. They don't *have* to // alter the document... // (Joacim) // ...or maybe the SetCursorParUndo() // below isn't necessary at all anylonger? if (inset_hit->LyxCode() == Inset::REF_CODE) { _buffer->text->SetCursorParUndo(); } _owner->getMiniBuffer()->Set(inset_hit->EditMessage()); inset_hit->Edit(inset_x, inset_y); return 0; } // check whether we want to open a float if (_buffer->text) { bool hit = false; char c = ' '; if (_buffer->text->cursor.pos < _buffer->text->cursor.par->Last()) { c = _buffer->text->cursor.par-> GetChar(_buffer->text->cursor.pos); } if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN || c == LYX_META_FIG || c == LYX_META_TAB || c == LYX_META_WIDE_FIG || c == LYX_META_WIDE_TAB || c == LYX_META_ALGORITHM){ hit = true; } else if (_buffer->text->cursor.pos - 1 >= 0) { c = _buffer->text->cursor.par-> GetChar(_buffer->text->cursor.pos - 1); if (c == LYX_META_FOOTNOTE || c == LYX_META_MARGIN || c == LYX_META_FIG || c == LYX_META_TAB || c == LYX_META_WIDE_FIG || c == LYX_META_WIDE_TAB || c == LYX_META_ALGORITHM){ // We are one step too far to the right _buffer->text->CursorLeft(); hit = true; } } if (hit == true) { ToggleFloat(); selection_possible = false; return 0; } } // Do we want to close a float? (click on the float-label) if (_buffer->text->cursor.row->par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE && _buffer->text->cursor.pos == 0 && _buffer->text->cursor.row->previous && _buffer->text->cursor.row->previous->par-> footnoteflag != LyXParagraph::OPEN_FOOTNOTE){ LyXFont font (LyXFont::ALL_SANE); font.setSize(LyXFont::SIZE_SMALL); int box_x = 20; // LYX_PAPER_MARGIN; box_x += font.textWidth("Mwide-figM", 10); int screen_first = screen->first; if (x < box_x && y + screen_first > _buffer->text->cursor.y - _buffer->text->cursor.row->baseline && y + screen_first < _buffer->text->cursor.y - _buffer->text->cursor.row->baseline + font.maxAscent()*1.2 + font.maxDescent()*1.2) { ToggleFloat(); selection_possible = false; return 0; } } // Maybe we want to edit a bibitem ale970302 if (_buffer->text->cursor.par->bibkey && x < 20 + bibitemMaxWidth(lyxstyle.TextClass(_buffer-> params.textclass)->defaultfont)) { _buffer->text->cursor.par->bibkey->Edit(0, 0); } return 0; } /* * Returns an inset if inset was hit. 0 otherwise. * If hit, the coordinates are changed relative to the inset. * Otherwise coordinates are not changed, and false is returned. */ Inset * BufferView::checkInsetHit(int &x, int &y) { if (!getScreen()) return 0; int y_tmp = y + getScreen()->first; LyXCursor cursor = _buffer->text->cursor; if (cursor.pos < cursor.par->Last() && cursor.par->GetChar(cursor.pos) == LYX_META_INSET && cursor.par->GetInset(cursor.pos) && cursor.par->GetInset(cursor.pos)->Editable()) { // Check whether the inset really was hit Inset* tmpinset = cursor.par->GetInset(cursor.pos); LyXFont font = _buffer->text->GetFont(cursor.par, cursor.pos); if (x > cursor.x && x < cursor.x + tmpinset->Width(font) && y_tmp > cursor.y - tmpinset->Ascent(font) && y_tmp < cursor.y + tmpinset->Descent(font)) { x = x - cursor.x; // The origin of an inset is on the baseline y = y_tmp - (cursor.y); return tmpinset; } } else if (cursor.pos - 1 >= 0 && cursor.par->GetChar(cursor.pos - 1) == LYX_META_INSET && cursor.par->GetInset(cursor.pos - 1) && cursor.par->GetInset(cursor.pos - 1)->Editable()) { _buffer->text->CursorLeft(); Inset * result = checkInsetHit(x, y); if (result == 0) { _buffer->text->CursorRight(); return 0; } else { return result; } } return 0; } int BufferView::workAreaExpose() { if (!work_area || !work_area->form->visible) return 1; // this is a hack to ensure that we only call this through // BufferView::redraw(). if (!lgb_hack) { redraw(); } static int work_area_width = work_area->w; static int work_area_height = work_area->h; bool widthChange = work_area->w != work_area_width; bool heightChange = work_area->h != work_area_height; // update from work area work_area_width = work_area->w; work_area_height = work_area->h; if (_buffer != 0) { if (widthChange) { // All buffers need a resize bufferlist.resize(); } else if (heightChange) { // Rebuild image of current screen updateScreen(); // fitCursor() ensures we don't jump back // to the start of the document on vertical // resize fitCursor(); // The main window size has changed, repaint most stuff redraw(); // ...including the minibuffer _owner->getMiniBuffer()->Init(); } else if (screen) screen->Redraw(); } else { // Grey box when we don't have a buffer fl_winset(FL_ObjWin(work_area)); fl_rectangle(1, work_area->x, work_area->y, work_area->w, work_area->h, FL_GRAY63); } // always make sure that the scrollbar is sane. updateScrollbar(); _owner->updateLayoutChoice(); return 1; } // Callback for cursor timer void BufferView::CursorToggleCB(FL_OBJECT *ob, long) { BufferView *view = (BufferView*) ob->u_vdata; /* quite a nice place for asyncron Inset updating, isn't it? */ // actually no! This is run even if no buffer exist... so (Lgb) if (view && !view->_buffer) { goto set_timer_and_return; } #ifdef WITH_WARNINGS #warning NOTE! #endif // On my quest to solve the gs rendre hangups I am now // disabling the SIGHUP completely, and will do a wait // now and then instead. If the guess that xforms somehow // destroys something is true, this is likely (hopefully) // to solve the problem...at least I hope so. Lgb // ...Ok this seems to work...at least it does not make things // worse so far. However I still see gs processes that hangs. // I would really like to know _why_ they are hanging. Anyway // the solution without the SIGCHLD handler seems to be easier // to debug. // When attaching gdb to a a running gs that hangs it shows // that it is waiting for input(?) Is it possible for us to // provide that input somehow? Or figure what it is expecing // to read? // One solution is to, after some time, look if there are some // old gs processes still running and if there are: kill them // and re render. // Another solution is to provide the user an option to rerender // a picture. This would, for the picture in question, check if // there is a gs running for it, if so kill it, and start a new // rendering process. // these comments posted to lyx@via //#if 0 { int status = 1; int pid = waitpid((pid_t)0, &status, WNOHANG); if (pid == -1) // error find out what is wrong ; // ignore it for now. else if (pid > 0) sigchldhandler(pid, &status); } //#endif if (InsetUpdateList) UpdateInsetUpdateList(); if (view && !view->screen){ goto set_timer_and_return; } if (view->lyx_focus && view->work_area_focus) { if (!view->_buffer->the_locking_inset){ view->screen->CursorToggle(); } else { view->_buffer->the_locking_inset-> ToggleInsetCursor(); } goto set_timer_and_return; } else { // Make sure that the cursor is visible. if (!view->_buffer->the_locking_inset){ view->screen->ShowCursor(); } else { if (!view->_buffer->the_locking_inset->isCursorVisible()) view->_buffer->the_locking_inset-> ToggleInsetCursor(); } // This is only run when work_area_focus or lyx_focus is false. Window tmpwin; int tmp; XGetInputFocus(fl_display, &tmpwin, &tmp); lyxerr.debug(string("tmpwin: ") + tostr(tmpwin)); lyxerr.debug(string("window: ") + tostr(view->_owner->getForm()->window)); lyxerr.debug(string("work_area_focus: ") + tostr(view->work_area_focus)); lyxerr.debug(string("lyx_focus : ") + tostr(view->lyx_focus)); if (tmpwin != view->_owner->getForm()->window) { view->lyx_focus = false; goto skip_timer; } else { view->lyx_focus = true; if (!view->work_area_focus) goto skip_timer; else goto set_timer_and_return; } } set_timer_and_return: fl_set_timer(ob, 0.4); skip_timer: return; } int BufferView::WorkAreaSelectionNotify(FL_OBJECT *, Window win, int /*w*/, int /*h*/, XEvent *event, void */*d*/) { if (_buffer == 0) return 0; if (event->type != SelectionNotify) return 0; Atom tmpatom; unsigned long ul1; unsigned long ul2; unsigned char* uc = 0; int tmpint; screen->HideCursor(); BeforeChange(); if (event->xselection.type == XA_STRING && event->xselection.property) { if (XGetWindowProperty( fl_display /* display */, win /* w */, event->xselection.property /* property */, 0 /* long_offset */, 0 /* long_length */, false /* delete */, XA_STRING /* req_type */, &tmpatom /* actual_type_return */, &tmpint /* actual_format_return */, &ul1 /* nitems_return */, &ul2 /* bytes_after_return */, &uc /* prop_return */ ) != Success) { return 0; } XFlush(fl_display); if (uc){ free(uc); uc = 0; } if (XGetWindowProperty( fl_display /* display */, win /* w */, event->xselection.property /* property */, 0 /* long_offset */, ul2/4+1 /* long_length */, True /* delete */, XA_STRING /* req_type */, &tmpatom /* actual_type_return */, &tmpint /* actual_format_return */, &ul1 /* nitems_return */, &ul2 /* bytes_after_return */, &uc /* prop_return */ ) != Success) { return 0; } XFlush(fl_display); if (uc){ if (!ascii_type) _buffer->text-> InsertStringA((char*)uc); else _buffer->text-> InsertStringB((char*)uc); free(uc); uc = 0; } _buffer->update(1); } return 0; } void BufferView::cursorPrevious() { if (!currentBuffer()->text->cursor.row->previous) return; long y = getScreen()->first; Row* cursorrow = currentBuffer()->text->cursor.row; currentBuffer()->text-> SetCursorFromCoordinates(currentBuffer()->text-> cursor.x_fix, y); currentBuffer()->text->FinishUndo(); /* this is to allow jumping over large insets */ if ((cursorrow == currentBuffer()->text->cursor.row)) currentBuffer()->text->CursorUp(); if (currentBuffer()->text->cursor.row->height < work_area->h) getScreen()->Draw(currentBuffer()->text->cursor.y - currentBuffer()->text->cursor.row->baseline + currentBuffer()->text->cursor.row->height - work_area->h +1 ); } void BufferView::cursorNext() { if (!currentBuffer()->text->cursor.row->next) return; long y = getScreen()->first; currentBuffer()->text->GetRowNearY(y); Row* cursorrow = currentBuffer()->text->cursor.row; currentBuffer()->text-> SetCursorFromCoordinates(currentBuffer()->text-> cursor.x_fix, y + work_area->h); currentBuffer()->text->FinishUndo(); /* this is to allow jumping over large insets */ if ((cursorrow == currentBuffer()->text->cursor.row)) currentBuffer()->text->CursorDown(); if (currentBuffer()->text->cursor.row->height < work_area->h) getScreen()->Draw(currentBuffer()->text->cursor.y - currentBuffer()->text->cursor.row->baseline); } bool BufferView::available() const { if (_buffer && _buffer->text) return true; return false; } void BufferView::savePosition() { backstack->push(currentBuffer()->getFileName(), currentBuffer()->text->cursor.x, currentBuffer()->text->cursor.y); } void BufferView::restorePosition() { int x, y; string fname = backstack->pop(&x, &y); BeforeChange(); Buffer *b = (bufferlist.exists(fname)) ? bufferlist.getBuffer(fname): bufferlist.loadLyXFile(fname); // don't ask, just load it setBuffer(b); currentBuffer()->text->SetCursorFromCoordinates(x, y); currentBuffer()->update(0); }