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https://git.lyx.org/repos/lyx.git
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dfe1bc44b4
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@291 a592a061-630c-0410-9148-cb99ea01b6c8
1523 lines
38 KiB
C
1523 lines
38 KiB
C
// -*- C++ -*-
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/* This file is part of
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* ======================================================
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*
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* LyX, The Document Processor
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*
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* Copyright 1995 Matthias Ettrich
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* Copyright 1995-1999 The LyX Team.
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*
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* ======================================================*/
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#include <config.h>
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#include <cstdlib>
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#include <csignal>
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#include <unistd.h>
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#include <sys/wait.h>
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#include "support/lstrings.h"
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "commandtags.h"
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#include "BufferView.h"
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#include "bufferlist.h"
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#include "LyXView.h"
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#include "lyxfunc.h"
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#include "insets/lyxinset.h"
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#include "minibuffer.h"
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#include "lyxscreen.h"
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#include "up.xpm"
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#include "down.xpm"
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#include "debug.h"
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#include "lyxdraw.h"
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#include "lyx_gui_misc.h"
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#include "BackStack.h"
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#include "lyxtext.h"
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#include "lyx_cb.h"
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#include "gettext.h"
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#include "layout.h"
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extern BufferList bufferlist;
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void sigchldhandler(pid_t pid, int *status);
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extern void SetXtermCursor(Window win);
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extern bool input_prohibited;
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extern bool selection_possible;
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extern void BeforeChange();
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extern char ascii_type;
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extern int UnlockInset(UpdatableInset* inset);
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extern void ToggleFloat();
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extern void MenuPasteSelection(char at);
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extern InsetUpdateStruct *InsetUpdateList;
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extern void UpdateInsetUpdateList();
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// This is _very_ temporary
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FL_OBJECT * figinset_canvas;
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BufferView::BufferView(LyXView *o, int xpos, int ypos,
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int width, int height)
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: _owner(o)
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{
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_buffer = 0;
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screen = 0;
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work_area = 0;
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figinset_canvas = 0;
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scrollbar = 0;
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button_down = 0;
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button_up = 0;
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timer_cursor = 0;
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current_scrollbar_value = 0;
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create_view(xpos, ypos, width, height);
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// Activate the timer for the cursor
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fl_set_timer(timer_cursor, 0.4);
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fl_set_focus_object(_owner->getForm(), work_area);
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work_area_focus = true;
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lyx_focus = false;
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}
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void BufferView::setBuffer(Buffer *b)
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{
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lyxerr.debug() << "Setting buffer in BufferView" << endl;
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if (_buffer) {
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_buffer->InsetSleep();
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_buffer->delUser(this);
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}
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// Set current buffer
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_buffer = b;
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if (bufferlist.getState() == BufferList::CLOSING) return;
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// Nuke old image
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if (screen)
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delete screen;
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screen = 0;
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// If we are closing the buffer, use the first buffer as current
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if (!_buffer) {
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_buffer = bufferlist.first();
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}
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if (_buffer) {
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lyxerr.debug() << " Buffer addr: " << _buffer << endl;
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_buffer->addUser(this);
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_owner->getMenus()->showMenus();
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// If we don't have a text object for this, we make one
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if (_buffer->text == 0)
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resizeCurrentBuffer();
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else {
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updateScreen();
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updateScrollbar();
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}
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screen->first = screen->TopCursorVisible();
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redraw();
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updateAllVisibleBufferRelatedPopups();
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_buffer->InsetWakeup();
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} else {
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lyxerr.debug() << " No Buffer!" << endl;
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_owner->getMenus()->hideMenus();
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updateScrollbar();
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fl_redraw_object(work_area);
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}
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// should update layoutchoice even if we don't have a buffer.
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_owner->updateLayoutChoice();
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_owner->getMiniBuffer()->Init();
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_owner->updateWindowTitle();
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}
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void BufferView::updateScreen()
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{
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// Regenerate the screen.
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if (screen)
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delete screen;
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screen = new LyXScreen(FL_ObjWin(work_area),
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work_area->w,
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work_area->h,
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work_area->x,
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work_area->y,
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_buffer->text);
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}
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void BufferView::resize()
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{
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// This will resize the buffer. (Asger)
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if (_buffer)
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resizeCurrentBuffer();
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}
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static bool lgb_hack = false;
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void BufferView::redraw()
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{
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lyxerr.debug() << "BufferView::redraw()" << endl;
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lgb_hack = true;
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fl_redraw_object(work_area);
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fl_redraw_object(scrollbar);
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fl_redraw_object(button_down);
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fl_redraw_object(button_up);
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lgb_hack = false;
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}
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void BufferView::fitCursor()
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{
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if (screen) screen->FitCursor();
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}
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void BufferView::update()
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{
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if (screen) screen->Update();
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}
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void BufferView::updateScrollbar()
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{
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/* If the text is smaller than the working area, the scrollbar
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* maximum must be the working area height. No scrolling will
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* be possible */
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if (!_buffer) {
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fl_set_slider_value(scrollbar, 0);
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fl_set_slider_size(scrollbar, scrollbar->h);
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return;
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}
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static long max2 = 0;
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static long height2 = 0;
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long cbth = 0;
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long cbsf = 0;
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if (_buffer->text)
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cbth = _buffer->text->height;
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if (screen)
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cbsf = screen->first;
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// check if anything has changed.
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if (max2 == cbth &&
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height2 == work_area->h &&
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current_scrollbar_value == cbsf)
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return; // no
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max2 = cbth;
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height2 = work_area->h;
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current_scrollbar_value = cbsf;
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if (cbth <= height2) { // text is smaller than screen
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fl_set_slider_size(scrollbar, scrollbar->h);
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return;
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}
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long maximum_height = work_area->h * 3/4 + cbth;
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long value = cbsf;
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/* set the scrollbar */
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double hfloat = work_area->h;
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double maxfloat = maximum_height;
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fl_set_slider_value(scrollbar, value);
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fl_set_slider_bounds(scrollbar, 0,
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maximum_height - work_area->h);
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#if FL_REVISION > 85
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double lineh = _buffer->text->DefaultHeight();
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fl_set_slider_increment(scrollbar,work_area->h-lineh,lineh);
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#endif
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if (maxfloat>0){
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if ((hfloat/maxfloat) * float(height2) < 3)
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fl_set_slider_size(scrollbar,
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3/float(height2));
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else
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fl_set_slider_size(scrollbar,
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hfloat/maxfloat);
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} else
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fl_set_slider_size(scrollbar, hfloat);
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fl_set_slider_precision(scrollbar, 0);
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}
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void BufferView::redoCurrentBuffer()
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{
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lyxerr.debug() << "BufferView::redoCurrentBuffer" << endl;
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if (_buffer && _buffer->text) {
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resize();
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_owner->updateLayoutChoice();
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}
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}
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int BufferView::resizeCurrentBuffer()
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{
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lyxerr.debug() << "resizeCurrentBuffer" << endl;
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LyXParagraph * par = 0;
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LyXParagraph * selstartpar = 0;
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LyXParagraph * selendpar = 0;
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int pos = 0;
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int selstartpos = 0;
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int selendpos = 0;
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int selection = 0;
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int mark_set = 0;
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ProhibitInput();
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_owner->getMiniBuffer()->Set(_("Formatting document..."));
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if (_buffer->text) {
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par = _buffer->text->cursor.par;
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pos = _buffer->text->cursor.pos;
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selstartpar = _buffer->text->sel_start_cursor.par;
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selstartpos = _buffer->text->sel_start_cursor.pos;
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selendpar = _buffer->text->sel_end_cursor.par;
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selendpos = _buffer->text->sel_end_cursor.pos;
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selection = _buffer->text->selection;
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mark_set = _buffer->text->mark_set;
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delete _buffer->text;
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}
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_buffer->text = new LyXText(work_area->w, _buffer);
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updateScreen();
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if (par) {
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_buffer->text->selection = true;
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/* at this point just
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* to avoid the Delete-
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* Empty-Paragraph
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* Mechanism when
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* setting the cursor */
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_buffer->text->mark_set = mark_set;
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if (selection) {
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_buffer->text->SetCursor(selstartpar, selstartpos);
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_buffer->text->sel_cursor = _buffer->text->cursor;
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_buffer->text->SetCursor(selendpar, selendpos);
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_buffer->text->SetSelection();
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_buffer->text->SetCursor(par, pos);
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} else {
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_buffer->text->SetCursor(par, pos);
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_buffer->text->sel_cursor = _buffer->text->cursor;
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_buffer->text->selection = false;
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}
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}
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screen->first = screen->TopCursorVisible(); /* this will scroll the
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* screen such that the
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* cursor becomes
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* visible */
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updateScrollbar();
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redraw();
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_owner->getMiniBuffer()->Init();
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AllowInput();
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// Now if the title form still exist kill it
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TimerCB(0,0);
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return 0;
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}
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void BufferView::gotoError()
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{
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if (!screen)
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return;
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screen->HideCursor();
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BeforeChange();
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_buffer->update(-2);
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LyXCursor tmp;
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if (!_buffer->text->GotoNextError()) {
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if (_buffer->text->cursor.pos
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|| _buffer->text->cursor.par !=
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_buffer->text->FirstParagraph()) {
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tmp = _buffer->text->cursor;
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_buffer->text->cursor.par =
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_buffer->text->FirstParagraph();
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_buffer->text->cursor.pos = 0;
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if (!_buffer->text->GotoNextError()) {
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_buffer->text->cursor = tmp;
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_owner->getMiniBuffer()->Set(_("No more errors"));
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LyXBell();
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}
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} else {
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_owner->getMiniBuffer()->Set(_("No more errors"));
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LyXBell();
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}
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}
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_buffer->update(0);
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_buffer->text->sel_cursor =
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_buffer->text->cursor;
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}
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// Just a bunch of C wrappers around static members of BufferView
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extern "C" void C_BufferView_UpCB(FL_OBJECT * ob, long buf) {
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BufferView::UpCB(ob, buf);
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}
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extern "C" void C_BufferView_DownCB(FL_OBJECT * ob, long buf) {
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BufferView::DownCB(ob, buf);
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}
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extern "C" void C_BufferView_ScrollCB(FL_OBJECT * ob, long buf) {
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BufferView::ScrollCB(ob, buf);
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}
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extern "C" void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf) {
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BufferView::CursorToggleCB(ob, buf);
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}
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extern "C" int C_BufferView_work_area_handler(FL_OBJECT * ob, int event,
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FL_Coord, FL_Coord,
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int key, void * xev) {
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return BufferView::work_area_handler(ob, event, 0, 0, key, xev);
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}
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void BufferView::create_view(int xpos, int ypos, int width, int height)
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{
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FL_OBJECT * obj;
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const int bw = abs(fl_get_border_width());
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// a hack for the figinsets (Matthias)
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// This one first, then it will probably be invisible. (Lgb)
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::figinset_canvas = figinset_canvas = obj =
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fl_add_canvas(FL_NORMAL_CANVAS,
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xpos + 1,
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ypos + 1,1,1,"");
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fl_set_object_boxtype(obj,FL_NO_BOX);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
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// a box
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obj = fl_add_box(FL_BORDER_BOX, xpos, ypos,
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width - 15,
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height,"");
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
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// the free object
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work_area = obj = fl_add_free(FL_INPUT_FREE,
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xpos +bw, ypos+bw,
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width-15-2*bw /* scrollbarwidth */,
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height-2*bw,"",
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C_BufferView_work_area_handler);
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obj->wantkey = FL_KEY_TAB;
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obj->u_vdata = this; /* This is how we pass the BufferView
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to the work_area_handler. */
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fl_set_object_boxtype(obj,FL_DOWN_BOX);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
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//
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// THE SCROLLBAR
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//
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// up - scrollbar button
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#if FL_REVISION > 85
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fl_set_border_width(-1);
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#else
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fl_set_border_width(-2); // to get visible feedback
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#endif
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button_up = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
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width-15+4*bw,
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ypos,
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15,15,"");
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fl_set_object_boxtype(obj,FL_UP_BOX);
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fl_set_object_color(obj,FL_MCOL,FL_BLUE);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj,NorthEastGravity, NorthEastGravity);
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fl_set_object_callback(obj, C_BufferView_UpCB, 0);
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obj->u_vdata = this;
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fl_set_pixmapbutton_data(obj, up_xpm);
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#if FL_REVISION >85
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// Remove the blue feedback rectangle
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fl_set_pixmapbutton_focus_outline(obj,0);
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#endif
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// the scrollbar slider
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fl_set_border_width(-bw);
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scrollbar = obj = fl_add_slider(FL_VERT_SLIDER,
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width-15+4*bw,
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ypos + 15,
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15,height-30,"");
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fl_set_object_color(obj,FL_COL1,FL_MCOL);
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fl_set_object_boxtype(obj, FL_UP_BOX);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
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fl_set_object_callback(obj, C_BufferView_ScrollCB, 0);
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obj->u_vdata = this;
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// down - scrollbar button
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#if FL_REVISION > 85
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fl_set_border_width(-1);
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#else
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fl_set_border_width(-2); // to get visible feedback
|
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#endif
|
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button_down = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
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width-15+4*bw,
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ypos + height-15,
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15,15,"");
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||
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);
|
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fl_set_object_gravity(obj, SouthEastGravity, SouthEastGravity);
|
||
fl_set_object_callback(obj, C_BufferView_DownCB, 0);
|
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obj->u_vdata = 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,C_BufferView_CursorToggleCB,0);
|
||
obj->u_vdata = this;
|
||
}
|
||
|
||
|
||
// Callback for scrollbar up button
|
||
void BufferView::UpCB(FL_OBJECT * ob, long)
|
||
{
|
||
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
|
||
|
||
if (view->_buffer == 0) return;
|
||
|
||
XEvent const * 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, reinterpret_cast<unsigned char*>(""), 0);
|
||
XWindowEvent(fl_display, w, PropertyChangeMask, &ev);
|
||
}
|
||
|
||
|
||
// Callback for scrollbar slider
|
||
void BufferView::ScrollCB(FL_OBJECT * ob, long)
|
||
{
|
||
BufferView *view = static_cast<BufferView*>(ob->u_vdata);
|
||
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)
|
||
{
|
||
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
|
||
|
||
if (view->_buffer == 0) return;
|
||
|
||
XEvent const *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, 0);
|
||
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, 0);
|
||
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, 0);
|
||
}
|
||
|
||
|
||
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, 0);
|
||
}
|
||
|
||
|
||
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 = static_cast<XEvent*>(xev);
|
||
BufferView * view = static_cast<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(LyXFont const &);
|
||
|
||
// 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 (!_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) {
|
||
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(textclasslist.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 = static_cast<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;
|
||
}
|
||
|
||
//<2F>NOTE:
|
||
// 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
|
||
{
|
||
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);
|
||
}
|
||
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);
|
||
if (lyxerr.debugging()) {
|
||
lyxerr << "tmpwin: " << tmpwin
|
||
<< "\nwindow: " << view->_owner->getForm()->window
|
||
<< "\nwork_area_focus: " << view->work_area_focus
|
||
<< "\nlyx_focus : " << view->lyx_focus
|
||
<< endl;
|
||
}
|
||
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(reinterpret_cast<char*>(uc));
|
||
} else {
|
||
_buffer->text->
|
||
InsertStringB(reinterpret_cast<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()
|
||
{
|
||
if (backstack.empty()) return;
|
||
|
||
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);
|
||
}
|