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/*
* Copyright (C) 2012-2017 Robin Haberkorn
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <Scintilla.h>
#include "sciteco.h"
#include "interface.h"
#include "undo.h"
#include "document.h"
namespace SciTECO {
void
Document::edit(ViewCurrent &view)
{
/*
* FIXME: SCI_SETREPRESENTATION does not redraw
* the screen - also that would be very slow.
* Since SCI_SETDOCPOINTER resets the representation
* (this should probably be fixed in Scintilla),
* the screen is garbled since the layout cache
* is calculated with the default representations.
* We work around this by temporarily disabling the
* layout cache.
*/
gint old_mode = view.ssm(SCI_GETLAYOUTCACHE);
maybe_create_document();
view.ssm(SCI_SETLAYOUTCACHE, SC_CACHE_NONE);
view.ssm(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
view.ssm(SCI_SETFIRSTVISIBLELINE, first_line);
view.ssm(SCI_SETXOFFSET, xoffset);
view.ssm(SCI_SETSEL, anchor, (sptr_t)dot);
/*
* Default TECO-style character representations.
* They are reset on EVERY SETDOCPOINTER call by Scintilla.
*/
view.set_representations();
view.ssm(SCI_SETLAYOUTCACHE, old_mode);
}
void
Document::undo_edit(ViewCurrent &view)
{
maybe_create_document();
/*
* FIXME: see above in Document::edit()
*/
view.undo_ssm(SCI_SETLAYOUTCACHE,
view.ssm(SCI_GETLAYOUTCACHE));
view.undo_set_representations();
view.undo_ssm(SCI_SETSEL, anchor, (sptr_t)dot);
view.undo_ssm(SCI_SETXOFFSET, xoffset);
view.undo_ssm(SCI_SETFIRSTVISIBLELINE, first_line);
view.undo_ssm(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
view.undo_ssm(SCI_SETLAYOUTCACHE, SC_CACHE_NONE);
}
void
Document::update(ViewCurrent &view)
{
anchor = view.ssm(SCI_GETANCHOR);
dot = view.ssm(SCI_GETCURRENTPOS);
first_line = view.ssm(SCI_GETFIRSTVISIBLELINE);
xoffset = view.ssm(SCI_GETXOFFSET);
}
/*
* Only for QRegisterStack::pop() which does some clever
* exchanging of document data (without any deep copying)
*/
void
Document::exchange(Document &other)
{
SciDoc temp_doc = doc;
gint temp_anchor = anchor;
gint temp_dot = dot;
gint temp_first_line = first_line;
gint temp_xoffset = xoffset;
doc = other.doc;
anchor = other.anchor;
dot = other.dot;
first_line = other.first_line;
xoffset = other.xoffset;
other.doc = temp_doc;
other.anchor = temp_anchor;
other.dot = temp_dot;
other.first_line = temp_first_line;
other.xoffset = temp_xoffset;
}
} /* namespace SciTECO */
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