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https://git.lyx.org/repos/lyx.git
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e3fcc05ff6
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7328 a592a061-630c-0410-9148-cb99ea01b6c8
1081 lines
26 KiB
C
1081 lines
26 KiB
C
/**
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* \file rowpainter.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author various
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS
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*/
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#include <config.h>
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#include "frontends/Painter.h"
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#include "frontends/screen.h"
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#include "frontends/font_metrics.h"
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#include "support/LAssert.h"
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#include "paragraph.h"
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#include "paragraph_funcs.h"
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#include "support/textutils.h"
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#include "insets/insettext.h"
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#include "ParagraphParameters.h"
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#include "BufferView.h"
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#include "buffer.h"
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#include "gettext.h"
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#include "language.h"
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#include "encoding.h"
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#include "lyxtext.h"
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#include "lyxrow.h"
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#include "rowpainter.h"
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#include "lyxrc.h"
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#include "lyxrow_funcs.h"
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#include "metricsinfo.h"
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#include <algorithm>
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using namespace lyx::support;
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using std::max;
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using lyx::pos_type;
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extern int PAPER_MARGIN;
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extern int CHANGEBAR_MARGIN;
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extern int LEFT_MARGIN;
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namespace {
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// "temporary". We'll never get to use more
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// references until we start adding hacks like
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// these until other places catch up.
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BufferView * perv(BufferView const & bv)
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{
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return const_cast<BufferView *>(&bv);
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}
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/**
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* A class used for painting an individual row of text.
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*/
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class RowPainter {
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public:
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/// initialise painter
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RowPainter(BufferView const & bv, LyXText const & text,
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RowList::iterator rit, int y_offset, int x_offset, int y);
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/// do the painting
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void paint();
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private:
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// paint various parts
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void paintBackground();
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void paintSelection();
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void paintAppendix();
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void paintDepthBar();
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void paintChangeBar();
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void paintFirst();
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void paintLast();
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void paintForeignMark(int orig_x, LyXFont const & orig_font);
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void paintHebrewComposeChar(lyx::pos_type & vpos);
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void paintArabicComposeChar(lyx::pos_type & vpos);
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void paintChars(lyx::pos_type & vpos, bool hebrew, bool arabic);
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int paintPageBreak(string const & label, int y);
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int paintAppendixStart(int y);
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int paintLengthMarker(string const & prefix, VSpace const & vsp, int start);
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void paintText();
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void paintFromPos(lyx::pos_type & vpos);
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void paintInset(lyx::pos_type const pos);
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/// return left margin
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int leftMargin() const;
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/// return the font at the given pos
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LyXFont const getFont(lyx::pos_type pos) const;
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/// return the label font for this row
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LyXFont const getLabelFont() const;
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char const transformChar(char c, lyx::pos_type pos) const;
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/// return pixel width for the given pos
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int singleWidth(lyx::pos_type pos) const;
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int singleWidth(lyx::pos_type pos, char c) const;
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/// bufferview to paint on
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BufferView const & bv_;
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/// Painter to use
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Painter & pain_;
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/// LyXText for the row
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LyXText const & text_;
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/// The row to paint
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RowList::iterator row_;
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/// Row's paragraph
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mutable ParagraphList::iterator pit_;
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// Looks ugly - is
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int xo_;
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int yo_;
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int x_;
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int y_;
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int width_;
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int separator_;
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int hfill_;
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int label_hfill_;
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};
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RowPainter::RowPainter(BufferView const & bv, LyXText const & text,
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RowList::iterator rit,
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int y_offset, int x_offset, int y)
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: bv_(bv), pain_(bv_.painter()), text_(text), row_(rit),
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pit_(rit->par()),
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xo_(x_offset), yo_(y_offset), y_(y)
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{}
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/// "temporary"
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LyXFont const RowPainter::getFont(pos_type pos) const
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{
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return text_.getFont(bv_.buffer(), pit_, pos);
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}
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int RowPainter::singleWidth(lyx::pos_type pos) const
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{
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return text_.singleWidth(pit_, pos);
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}
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int RowPainter::singleWidth(lyx::pos_type pos, char c) const
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{
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return text_.singleWidth(pit_, pos, c);
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}
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LyXFont const RowPainter::getLabelFont() const
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{
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return text_.getLabelFont(bv_.buffer(), pit_);
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}
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char const RowPainter::transformChar(char c, lyx::pos_type pos) const
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{
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return text_.transformChar(c, *pit_, pos);
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}
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int RowPainter::leftMargin() const
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{
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return text_.leftMargin(*row_);
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}
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void RowPainter::paintInset(pos_type const pos)
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{
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Inset * inset = const_cast<Inset*>(pit_->getInset(pos));
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Assert(inset);
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//MetricsInfo mi(perv(bv_), getFont(pos), text_.workWidth());
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//Dimension dim;
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//inset->metrics(mi, dim);
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PainterInfo pi(perv(bv_));
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pi.base.font = getFont(pos);
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#warning metrics?
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inset->draw(pi, int(x_), yo_ + row_->baseline());
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x_ += inset->width();
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}
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void RowPainter::paintHebrewComposeChar(pos_type & vpos)
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{
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pos_type pos = text_.vis2log(vpos);
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string str;
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// first char
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char c = pit_->getChar(pos);
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str += c;
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++vpos;
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LyXFont const & font = getFont(pos);
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int const width = font_metrics::width(c, font);
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int dx = 0;
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for (pos_type i = pos - 1; i >= 0; --i) {
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c = pit_->getChar(i);
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if (!Encodings::IsComposeChar_hebrew(c)) {
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if (IsPrintableNonspace(c)) {
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int const width2 =
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singleWidth(i, c);
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// dalet / resh
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dx = (c == '<EFBFBD>' || c == '<EFBFBD>')
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? width2 - width
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: (width2 - width) / 2;
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}
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break;
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}
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}
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// Draw nikud
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pain_.text(int(x_) + dx, yo_ + row_->baseline(), str, font);
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}
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void RowPainter::paintArabicComposeChar(pos_type & vpos)
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{
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pos_type pos = text_.vis2log(vpos);
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string str;
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// first char
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char c = pit_->getChar(pos);
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c = transformChar(c, pos);
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str +=c;
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++vpos;
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LyXFont const & font = getFont(pos);
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int const width = font_metrics::width(c, font);
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int dx = 0;
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for (pos_type i = pos - 1; i >= 0; --i) {
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c = pit_->getChar(i);
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if (!Encodings::IsComposeChar_arabic(c)) {
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if (IsPrintableNonspace(c)) {
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int const width2 =
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singleWidth(i, c);
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dx = (width2 - width) / 2;
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}
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break;
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}
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}
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// Draw nikud
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pain_.text(int(x_) + dx, yo_ + row_->baseline(), str, font);
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}
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void RowPainter::paintChars(pos_type & vpos, bool hebrew, bool arabic)
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{
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pos_type pos = text_.vis2log(vpos);
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pos_type const last = lastPrintablePos(text_, row_);
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LyXFont orig_font = getFont(pos);
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// first character
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string str;
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str += pit_->getChar(pos);
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if (arabic) {
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unsigned char c = str[0];
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str[0] = transformChar(c, pos);
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}
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bool prev_struckout(isDeletedText(*pit_, pos));
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bool prev_newtext(isInsertedText(*pit_, pos));
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++vpos;
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// collect as much similar chars as we can
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while (vpos <= last && (pos = text_.vis2log(vpos)) >= 0) {
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char c = pit_->getChar(pos);
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if (!IsPrintableNonspace(c))
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break;
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if (prev_struckout != isDeletedText(*pit_, pos))
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break;
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if (prev_newtext != isInsertedText(*pit_, pos))
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break;
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if (arabic && Encodings::IsComposeChar_arabic(c))
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break;
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if (hebrew && Encodings::IsComposeChar_hebrew(c))
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break;
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if (orig_font != getFont(pos))
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break;
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if (arabic)
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c = transformChar(c, pos);
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str += c;
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++vpos;
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}
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if (prev_struckout) {
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orig_font.setColor(LColor::strikeout);
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} else if (prev_newtext) {
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orig_font.setColor(LColor::newtext);
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}
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// Draw text and set the new x position
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pain_.text(int(x_), yo_ + row_->baseline(), str, orig_font);
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x_ += font_metrics::width(str, orig_font);
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}
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void RowPainter::paintForeignMark(int orig_x, LyXFont const & orig_font)
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{
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if (!lyxrc.mark_foreign_language)
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return;
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if (orig_font.language() == latex_language)
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return;
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if (orig_font.language() == bv_.buffer()->params.language)
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return;
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int const y = yo_ + row_->baseline() + 1;
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pain_.line(int(orig_x), y, int(x_), y, LColor::language);
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}
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void RowPainter::paintFromPos(pos_type & vpos)
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{
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pos_type const pos = text_.vis2log(vpos);
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LyXFont const & orig_font = getFont(pos);
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int const orig_x = x_;
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char const c = pit_->getChar(pos);
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if (IsInsetChar(c)) {
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paintInset(pos);
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++vpos;
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paintForeignMark(orig_x, orig_font);
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return;
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}
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// usual characters, no insets
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// special case languages
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bool const hebrew = (orig_font.language()->lang() == "hebrew");
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bool const arabic =
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orig_font.language()->lang() == "arabic" &&
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(lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
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lyxrc.font_norm_type == LyXRC::ISO_10646_1);
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// draw as many chars as we can
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if ((!hebrew && !arabic)
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|| (hebrew && !Encodings::IsComposeChar_hebrew(c))
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|| (arabic && !Encodings::IsComposeChar_arabic(c))) {
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paintChars(vpos, hebrew, arabic);
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} else if (hebrew) {
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paintHebrewComposeChar(vpos);
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} else if (arabic) {
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paintArabicComposeChar(vpos);
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}
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paintForeignMark(orig_x, orig_font);
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return;
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}
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void RowPainter::paintBackground()
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{
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int const x = xo_;
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int const y = yo_ < 0 ? 0 : yo_;
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int const h = yo_ < 0 ? row_->height() + yo_ : row_->height();
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pain_.fillRectangle(x, y, width_, h, text_.backgroundColor());
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}
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void RowPainter::paintSelection()
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{
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bool const is_rtl = pit_->isRightToLeftPar(bv_.buffer()->params);
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// the current selection
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int const startx = text_.selection.start.x();
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int const endx = text_.selection.end.x();
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int const starty = text_.selection.start.y();
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int const endy = text_.selection.end.y();
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RowList::iterator startrow = text_.getRow(text_.selection.start);
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RowList::iterator endrow = text_.getRow(text_.selection.end);
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if (text_.bidi_same_direction) {
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int x;
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int y = yo_;
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int w;
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int h = row_->height();
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if (startrow == row_ && endrow == row_) {
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if (startx < endx) {
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x = xo_ + startx;
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w = endx - startx;
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pain_.fillRectangle(x, y, w, h, LColor::selection);
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} else {
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x = xo_ + endx;
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w = startx - endx;
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pain_.fillRectangle(x, y, w, h, LColor::selection);
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}
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} else if (startrow == row_) {
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int const x = (is_rtl) ? xo_ : (xo_ + startx);
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int const w = (is_rtl) ? startx : (width_ - startx);
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pain_.fillRectangle(x, y, w, h, LColor::selection);
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} else if (endrow == row_) {
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int const x = (is_rtl) ? (xo_ + endx) : xo_;
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int const w = (is_rtl) ? (width_ - endx) : endx;
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pain_.fillRectangle(x, y, w, h, LColor::selection);
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} else if (y_ > starty && y_ < endy) {
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pain_.fillRectangle(xo_, y, width_, h, LColor::selection);
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}
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return;
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} else if (startrow != row_ && endrow != row_) {
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if (y_ > starty && y_ < endy) {
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int w = width_;
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int h = row_->height();
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pain_.fillRectangle(xo_, yo_, w, h, LColor::selection);
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}
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return;
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}
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if ((startrow != row_ && !is_rtl) || (endrow != row_ && is_rtl))
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pain_.fillRectangle(xo_, yo_, int(x_), row_->height(), LColor::selection);
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pos_type const body_pos = pit_->beginningOfBody();
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pos_type const last = lastPrintablePos(text_, row_);
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int tmpx = x_;
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for (pos_type vpos = row_->pos(); vpos <= last; ++vpos) {
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pos_type pos = text_.vis2log(vpos);
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int const old_tmpx = tmpx;
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if (body_pos > 0 && pos == body_pos - 1) {
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LyXLayout_ptr const & layout = pit_->layout();
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LyXFont const lfont = getLabelFont();
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tmpx += label_hfill_ + font_metrics::width(layout->labelsep, lfont);
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if (pit_->isLineSeparator(body_pos - 1))
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tmpx -= singleWidth(body_pos - 1);
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}
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if (hfillExpansion(text_, row_, pos)) {
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tmpx += singleWidth(pos);
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if (pos >= body_pos)
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tmpx += hfill_;
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else
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tmpx += label_hfill_;
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}
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else if (pit_->isSeparator(pos)) {
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tmpx += singleWidth(pos);
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if (pos >= body_pos)
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tmpx += separator_;
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} else {
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tmpx += singleWidth(pos);
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}
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if ((startrow != row_ || text_.selection.start.pos() <= pos) &&
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(endrow != row_ || pos < text_.selection.end.pos())) {
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// Here we do not use x_ as xo_ was added to x_.
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pain_.fillRectangle(int(old_tmpx), yo_,
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int(tmpx - old_tmpx + 1),
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row_->height(), LColor::selection);
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}
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}
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if ((startrow != row_ && is_rtl) || (endrow != row_ && !is_rtl)) {
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pain_.fillRectangle(xo_ + int(tmpx),
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yo_, int(bv_.workWidth() - tmpx),
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row_->height(), LColor::selection);
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}
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}
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void RowPainter::paintChangeBar()
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{
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pos_type const start = row_->pos();
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pos_type const end = lastPrintablePos(text_, row_);
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if (!pit_->isChanged(start, end))
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return;
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int const height = (boost::next(row_) != text_.rows().end()
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? row_->height() + boost::next(row_)->top_of_text()
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: row_->baseline());
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pain_.fillRectangle(4, yo_, 5, height, LColor::changebar);
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}
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void RowPainter::paintAppendix()
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{
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if (!pit_->params().appendix())
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return;
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// FIXME: can be just width_ ?
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int const ww = bv_.workWidth();
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int y = yo_;
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if (pit_->params().startOfAppendix())
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y += 2 * defaultRowHeight();
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pain_.line(1, y, 1, yo_ + row_->height(), LColor::appendix);
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pain_.line(ww - 2, y, ww - 2, yo_ + row_->height(), LColor::appendix);
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}
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void RowPainter::paintDepthBar()
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{
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Paragraph::depth_type const depth = pit_->getDepth();
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if (depth <= 0)
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return;
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Paragraph::depth_type prev_depth = 0;
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if (row_ != text_.rows().begin())
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prev_depth = boost::prior(row_)->par()->getDepth();
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Paragraph::depth_type next_depth = 0;
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RowList::iterator next_row = boost::next(row_);
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if (next_row != text_.rows().end())
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next_depth = next_row->par()->getDepth();
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for (Paragraph::depth_type i = 1; i <= depth; ++i) {
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int x = (PAPER_MARGIN / 5) * i + xo_;
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// only consider the changebar space if we're drawing outer left
|
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if (!xo_)
|
||
x += CHANGEBAR_MARGIN;
|
||
int const h = yo_ + row_->height() - 1 - (i - next_depth - 1) * 3;
|
||
|
||
pain_.line(x, yo_, x, h, LColor::depthbar);
|
||
|
||
int const w = PAPER_MARGIN / 5;
|
||
|
||
if (i > prev_depth) {
|
||
pain_.fillRectangle(x, yo_, w, 2, LColor::depthbar);
|
||
}
|
||
if (i > next_depth) {
|
||
pain_.fillRectangle(x, h, w, 2, LColor::depthbar);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
int RowPainter::paintLengthMarker(string const & prefix, VSpace const & vsp, int start)
|
||
{
|
||
if (vsp.kind() == VSpace::NONE)
|
||
return 0;
|
||
|
||
int const arrow_size = 4;
|
||
int const size = getLengthMarkerHeight(bv_, vsp);
|
||
int const end = start + size;
|
||
|
||
// the label to display (if any)
|
||
string str;
|
||
// y-values for top arrow
|
||
int ty1, ty2;
|
||
// y-values for bottom arrow
|
||
int by1, by2;
|
||
|
||
str = prefix + " (" + vsp.asLyXCommand() + ")";
|
||
|
||
if (vsp.kind() == VSpace::VFILL) {
|
||
ty1 = ty2 = start;
|
||
by1 = by2 = end;
|
||
} else {
|
||
// adding or removing space
|
||
bool const added = vsp.kind() != VSpace::LENGTH ||
|
||
vsp.length().len().value() > 0.0;
|
||
ty1 = added ? (start + arrow_size) : start;
|
||
ty2 = added ? start : (start + arrow_size);
|
||
by1 = added ? (end - arrow_size) : end;
|
||
by2 = added ? end : (end - arrow_size);
|
||
}
|
||
|
||
int const leftx = xo_ + leftMargin();
|
||
int const midx = leftx + arrow_size;
|
||
int const rightx = midx + arrow_size;
|
||
|
||
// first the string
|
||
int w = 0;
|
||
int a = 0;
|
||
int d = 0;
|
||
|
||
LyXFont font;
|
||
font.setColor(LColor::added_space).decSize().decSize();
|
||
font_metrics::rectText(str, font, w, a, d);
|
||
|
||
pain_.rectText(leftx + 2 * arrow_size + 5,
|
||
start + ((end - start) / 2) + d,
|
||
str, font);
|
||
|
||
// top arrow
|
||
pain_.line(leftx, ty1, midx, ty2, LColor::added_space);
|
||
pain_.line(midx, ty2, rightx, ty1, LColor::added_space);
|
||
|
||
// bottom arrow
|
||
pain_.line(leftx, by1, midx, by2, LColor::added_space);
|
||
pain_.line(midx, by2, rightx, by1, LColor::added_space);
|
||
|
||
// joining line
|
||
pain_.line(midx, ty2, midx, by2, LColor::added_space);
|
||
|
||
return size;
|
||
}
|
||
|
||
|
||
int RowPainter::paintPageBreak(string const & label, int y)
|
||
{
|
||
LyXFont pb_font;
|
||
pb_font.setColor(LColor::pagebreak).decSize();
|
||
|
||
int w = 0;
|
||
int a = 0;
|
||
int d = 0;
|
||
font_metrics::rectText(label, pb_font, w, a, d);
|
||
|
||
int const text_start = xo_ + ((width_ - w) / 2);
|
||
int const text_end = text_start + w;
|
||
|
||
pain_.rectText(text_start, y + d, label, pb_font);
|
||
|
||
pain_.line(xo_, y, text_start, y,
|
||
LColor::pagebreak, Painter::line_onoffdash);
|
||
pain_.line(text_end, y, xo_ + width_, y,
|
||
LColor::pagebreak, Painter::line_onoffdash);
|
||
|
||
return 3 * defaultRowHeight();
|
||
}
|
||
|
||
|
||
int RowPainter::paintAppendixStart(int y)
|
||
{
|
||
LyXFont pb_font;
|
||
pb_font.setColor(LColor::appendix).decSize();
|
||
|
||
string const label = _("Appendix");
|
||
int w = 0;
|
||
int a = 0;
|
||
int d = 0;
|
||
font_metrics::rectText(label, pb_font, w, a, d);
|
||
|
||
int const text_start = xo_ + ((width_ - w) / 2);
|
||
int const text_end = text_start + w;
|
||
|
||
pain_.rectText(text_start, y + d, label, pb_font);
|
||
|
||
pain_.line(xo_ + 1, y, text_start, y, LColor::appendix);
|
||
pain_.line(text_end, y, xo_ + width_ - 2, y, LColor::appendix);
|
||
|
||
return 3 * defaultRowHeight();
|
||
}
|
||
|
||
|
||
void RowPainter::paintFirst()
|
||
{
|
||
ParagraphParameters const & parparams = pit_->params();
|
||
|
||
int y_top = 0;
|
||
|
||
// start of appendix?
|
||
if (parparams.startOfAppendix()) {
|
||
y_top += paintAppendixStart(yo_ + y_top + 2 * defaultRowHeight());
|
||
}
|
||
|
||
// the top margin
|
||
if (row_ == text_.rows().begin() && !text_.isInInset())
|
||
y_top += PAPER_MARGIN;
|
||
|
||
// draw a top pagebreak
|
||
if (parparams.pagebreakTop()) {
|
||
y_top += paintPageBreak(_("Page Break (top)"),
|
||
yo_ + y_top + 2 * defaultRowHeight());
|
||
}
|
||
|
||
// draw the additional space if needed:
|
||
y_top += paintLengthMarker(_("Space above"), parparams.spaceTop(),
|
||
yo_ + y_top);
|
||
|
||
Buffer const * buffer = bv_.buffer();
|
||
|
||
LyXLayout_ptr const & layout = pit_->layout();
|
||
|
||
if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
|
||
if (pit_ != text_.ownerParagraphs().begin()) {
|
||
if (layout->latextype == LATEX_PARAGRAPH
|
||
&& !pit_->getDepth()) {
|
||
y_top += buffer->params.getDefSkip().inPixels(bv_);
|
||
} else {
|
||
LyXLayout_ptr const & playout =
|
||
boost::prior(pit_)->layout();
|
||
if (playout->latextype == LATEX_PARAGRAPH
|
||
&& !boost::prior(pit_)->getDepth()) {
|
||
// is it right to use defskip here, too? (AS)
|
||
y_top += buffer->params.getDefSkip().inPixels(bv_);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
int const ww = bv_.workWidth();
|
||
|
||
// draw a top line
|
||
if (parparams.lineTop()) {
|
||
int const asc = font_metrics::ascent('x', getFont(0));
|
||
|
||
y_top += asc;
|
||
|
||
int const w = (text_.isInInset() ? text_.inset_owner->width() : ww);
|
||
int const xp = static_cast<int>(text_.isInInset() ? xo_ : 0);
|
||
pain_.line(xp, yo_ + y_top, xp + w, yo_ + y_top,
|
||
LColor::topline, Painter::line_solid,
|
||
Painter::line_thick);
|
||
|
||
y_top += asc;
|
||
}
|
||
|
||
bool const is_rtl = pit_->isRightToLeftPar(bv_.buffer()->params);
|
||
|
||
// should we print a label?
|
||
if (layout->labeltype >= LABEL_STATIC
|
||
&& (layout->labeltype != LABEL_STATIC
|
||
|| layout->latextype != LATEX_ENVIRONMENT
|
||
|| isFirstInSequence(pit_, text_.ownerParagraphs()))) {
|
||
|
||
LyXFont font = getLabelFont();
|
||
if (!pit_->getLabelstring().empty()) {
|
||
int x = x_;
|
||
string const str = pit_->getLabelstring();
|
||
|
||
// this is special code for the chapter layout. This is
|
||
// printed in an extra row and has a pagebreak at
|
||
// the top.
|
||
if (layout->labeltype == LABEL_COUNTER_CHAPTER) {
|
||
if (buffer->params.secnumdepth >= 0) {
|
||
float spacing_val = 1.0;
|
||
if (!parparams.spacing().isDefault()) {
|
||
spacing_val = parparams.spacing().getValue();
|
||
} else {
|
||
spacing_val = buffer->params.spacing.getValue();
|
||
}
|
||
|
||
int const maxdesc =
|
||
int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val)
|
||
+ int(layout->parsep) * defaultRowHeight();
|
||
|
||
if (is_rtl) {
|
||
x = ww - leftMargin() -
|
||
font_metrics::width(str, font);
|
||
}
|
||
|
||
pain_.text(x,
|
||
yo_ + row_->baseline() -
|
||
row_->ascent_of_text() - maxdesc,
|
||
str, font);
|
||
}
|
||
} else {
|
||
if (is_rtl) {
|
||
x = ww - leftMargin()
|
||
+ font_metrics::width(layout->labelsep, font);
|
||
} else {
|
||
x = x_ - font_metrics::width(layout->labelsep, font)
|
||
- font_metrics::width(str, font);
|
||
}
|
||
|
||
pain_.text(x, yo_ + row_->baseline(), str, font);
|
||
}
|
||
}
|
||
|
||
// the labels at the top of an environment.
|
||
// More or less for bibliography
|
||
} else if (isFirstInSequence(pit_, text_.ownerParagraphs()) &&
|
||
(layout->labeltype == LABEL_TOP_ENVIRONMENT ||
|
||
layout->labeltype == LABEL_BIBLIO ||
|
||
layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
|
||
LyXFont font = getLabelFont();
|
||
if (!pit_->getLabelstring().empty()) {
|
||
string const str = pit_->getLabelstring();
|
||
float spacing_val = 1.0;
|
||
if (!parparams.spacing().isDefault()) {
|
||
spacing_val = parparams.spacing().getValue();
|
||
} else {
|
||
spacing_val = buffer->params.spacing.getValue();
|
||
}
|
||
|
||
int maxdesc =
|
||
int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val
|
||
+ (layout->labelbottomsep * defaultRowHeight()));
|
||
|
||
int x = x_;
|
||
if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
|
||
x = ((is_rtl ? leftMargin() : x_)
|
||
+ ww - text_.rightMargin(*bv_.buffer(), *row_)) / 2;
|
||
x -= font_metrics::width(str, font) / 2;
|
||
} else if (is_rtl) {
|
||
x = ww - leftMargin() -
|
||
font_metrics::width(str, font);
|
||
}
|
||
pain_.text(x, yo_ + row_->baseline()
|
||
- row_->ascent_of_text() - maxdesc,
|
||
str, font);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
void RowPainter::paintLast()
|
||
{
|
||
ParagraphParameters const & parparams = pit_->params();
|
||
int y_bottom = row_->height() - 1;
|
||
|
||
// the bottom margin
|
||
if (boost::next(row_) == text_.rows().end() && !text_.isInInset())
|
||
y_bottom -= PAPER_MARGIN;
|
||
|
||
int const ww = bv_.workWidth();
|
||
|
||
// draw a bottom pagebreak
|
||
if (parparams.pagebreakBottom()) {
|
||
y_bottom -= paintPageBreak(_("Page Break (bottom)"),
|
||
yo_ + y_bottom - 2 * defaultRowHeight());
|
||
}
|
||
|
||
// draw the additional space if needed:
|
||
int const height = getLengthMarkerHeight(bv_, parparams.spaceBottom());
|
||
y_bottom -= paintLengthMarker(_("Space below"), parparams.spaceBottom(),
|
||
yo_ + y_bottom - height);
|
||
|
||
// draw a bottom line
|
||
if (parparams.lineBottom()) {
|
||
int const asc = font_metrics::ascent('x',
|
||
getFont(max(pos_type(0), pit_->size() - 1)));
|
||
|
||
y_bottom -= asc;
|
||
|
||
int const w = text_.isInInset() ? text_.inset_owner->width() : ww;
|
||
int const xp = static_cast<int>(text_.isInInset() ? xo_ : 0);
|
||
int const y = yo_ + y_bottom;
|
||
pain_.line(xp, y, xp + w, y, LColor::topline, Painter::line_solid,
|
||
Painter::line_thick);
|
||
|
||
y_bottom -= asc;
|
||
}
|
||
|
||
bool const is_rtl = pit_->isRightToLeftPar(bv_.buffer()->params);
|
||
int const endlabel = getEndLabel(pit_, text_.ownerParagraphs());
|
||
|
||
// draw an endlabel
|
||
switch (endlabel) {
|
||
case END_LABEL_BOX:
|
||
case END_LABEL_FILLED_BOX:
|
||
{
|
||
LyXFont const font = getLabelFont();
|
||
int const size = int(0.75 * font_metrics::maxAscent(font));
|
||
int const y = (yo_ + row_->baseline()) - size;
|
||
int x = is_rtl ? LEFT_MARGIN : ww - PAPER_MARGIN - size;
|
||
|
||
if (row_->fill() <= size)
|
||
x += (size - row_->fill() + 1) * (is_rtl ? -1 : 1);
|
||
|
||
if (endlabel == END_LABEL_BOX) {
|
||
pain_.rectangle(x, y, size, size, LColor::eolmarker);
|
||
} else {
|
||
pain_.fillRectangle(x, y, size, size, LColor::eolmarker);
|
||
}
|
||
break;
|
||
}
|
||
case END_LABEL_STATIC:
|
||
{
|
||
LyXFont font = getLabelFont();
|
||
string const & str = pit_->layout()->endlabelstring();
|
||
int const x = is_rtl ?
|
||
x_ - font_metrics::width(str, font)
|
||
: ww - text_.rightMargin(*bv_.buffer(), *row_) - row_->fill();
|
||
pain_.text(x, yo_ + row_->baseline(), str, font);
|
||
break;
|
||
}
|
||
case END_LABEL_NO_LABEL:
|
||
break;
|
||
}
|
||
}
|
||
|
||
|
||
void RowPainter::paintText()
|
||
{
|
||
pos_type const last = lastPrintablePos(text_, row_);
|
||
pos_type body_pos = pit_->beginningOfBody();
|
||
if (body_pos > 0 &&
|
||
(body_pos - 1 > last ||
|
||
!pit_->isLineSeparator(body_pos - 1))) {
|
||
body_pos = 0;
|
||
}
|
||
|
||
LyXLayout_ptr const & layout = pit_->layout();
|
||
|
||
bool running_strikeout = false;
|
||
bool is_struckout = false;
|
||
int last_strikeout_x = 0;
|
||
|
||
pos_type vpos = row_->pos();
|
||
while (vpos <= last) {
|
||
if (x_ > bv_.workWidth())
|
||
break;
|
||
pos_type pos = text_.vis2log(vpos);
|
||
|
||
if (pos >= pit_->size()) {
|
||
++vpos;
|
||
continue;
|
||
}
|
||
|
||
if (x_ + singleWidth(pos) < 0) {
|
||
x_ += singleWidth(pos);
|
||
++vpos;
|
||
continue;
|
||
}
|
||
|
||
is_struckout = isDeletedText(*pit_, pos);
|
||
|
||
if (is_struckout && !running_strikeout) {
|
||
running_strikeout = true;
|
||
last_strikeout_x = x_;
|
||
}
|
||
|
||
bool const highly_editable_inset = pit_->isInset(pos)
|
||
&& isHighlyEditableInset(pit_->getInset(pos));
|
||
|
||
// if we reach the end of a struck out range, paint it
|
||
// we also don't paint across things like tables
|
||
if (running_strikeout && (highly_editable_inset || !is_struckout)) {
|
||
int const middle = yo_ + row_->top_of_text()
|
||
+ ((row_->baseline() - row_->top_of_text()) / 2);
|
||
pain_.line(last_strikeout_x, middle, x_, middle,
|
||
LColor::strikeout, Painter::line_solid, Painter::line_thin);
|
||
running_strikeout = false;
|
||
}
|
||
|
||
if (body_pos > 0 && pos == body_pos - 1) {
|
||
int const lwidth = font_metrics::width(layout->labelsep,
|
||
getLabelFont());
|
||
|
||
x_ += label_hfill_ + lwidth
|
||
- singleWidth(body_pos - 1);
|
||
}
|
||
|
||
if (pit_->isHfill(pos)) {
|
||
x_ += 1;
|
||
|
||
int const y0 = yo_ + row_->baseline();
|
||
int const y1 = y0 - defaultRowHeight() / 2;
|
||
|
||
pain_.line(x_, y1, x_, y0,
|
||
LColor::added_space);
|
||
|
||
if (hfillExpansion(text_, row_, pos)) {
|
||
int const y2 = (y0 + y1) / 2;
|
||
|
||
if (pos >= body_pos) {
|
||
pain_.line(x_, y2, x_ + hfill_, y2,
|
||
LColor::added_space,
|
||
Painter::line_onoffdash);
|
||
x_ += hfill_;
|
||
} else {
|
||
pain_.line(x_, y2,
|
||
x_ + label_hfill_, y2,
|
||
LColor::added_space,
|
||
Painter::line_onoffdash);
|
||
x_ += label_hfill_;
|
||
}
|
||
pain_.line(x_, y1, x_, y0, LColor::added_space);
|
||
}
|
||
x_ += 2;
|
||
++vpos;
|
||
} else if (pit_->isSeparator(pos)) {
|
||
x_ += singleWidth(pos);
|
||
if (pos >= body_pos)
|
||
x_ += separator_;
|
||
++vpos;
|
||
} else {
|
||
paintFromPos(vpos);
|
||
}
|
||
}
|
||
|
||
// if we reach the end of a struck out range, paint it
|
||
if (running_strikeout) {
|
||
int const middle = yo_ + row_->top_of_text()
|
||
+ ((row_->baseline() - row_->top_of_text()) / 2);
|
||
pain_.line(last_strikeout_x, middle, x_, middle,
|
||
LColor::strikeout, Painter::line_solid, Painter::line_thin);
|
||
running_strikeout = false;
|
||
}
|
||
return;
|
||
}
|
||
|
||
|
||
void RowPainter::paint()
|
||
{
|
||
width_ = text_.workWidth();
|
||
|
||
// FIXME: must be a cleaner way here. Aren't these calculations
|
||
// belonging to row metrics ?
|
||
text_.prepareToPrint(row_, x_, separator_, hfill_, label_hfill_);
|
||
|
||
// FIXME: what is this fixing ?
|
||
if (text_.isInInset() && x_ < 0)
|
||
x_ = 0;
|
||
x_ += xo_;
|
||
|
||
// If we're *not* at the top-level of rows, then the
|
||
// background has already been cleared.
|
||
if (&text_ == bv_.text)
|
||
paintBackground();
|
||
|
||
// paint the selection background
|
||
if (text_.selection.set()) {
|
||
paintSelection();
|
||
}
|
||
|
||
// vertical lines for appendix
|
||
paintAppendix();
|
||
|
||
// environment depth brackets
|
||
paintDepthBar();
|
||
|
||
// changebar
|
||
paintChangeBar();
|
||
|
||
if (row_->isParStart()) {
|
||
paintFirst();
|
||
}
|
||
|
||
if (isParEnd(text_, row_)) {
|
||
paintLast();
|
||
}
|
||
|
||
// paint text
|
||
paintText();
|
||
}
|
||
|
||
|
||
} // namespace anon
|
||
|
||
|
||
int getLengthMarkerHeight(BufferView const & bv, VSpace const & vsp)
|
||
{
|
||
if (vsp.kind() == VSpace::NONE)
|
||
return 0;
|
||
|
||
int const arrow_size = 4;
|
||
int const space_size = vsp.inPixels(bv);
|
||
|
||
LyXFont font;
|
||
font.decSize();
|
||
int const min_size = max(3 * arrow_size,
|
||
font_metrics::maxAscent(font)
|
||
+ font_metrics::maxDescent(font));
|
||
|
||
if (vsp.length().len().value() < 0.0)
|
||
return min_size;
|
||
else
|
||
return max(min_size, space_size);
|
||
}
|
||
|
||
|
||
void paintRows(BufferView const & bv, LyXText const & text,
|
||
RowList::iterator rit, int y_offset, int x_offset, int y)
|
||
{
|
||
RowPainter painter(bv, text, rit, y_offset, x_offset, y);
|
||
painter.paint();
|
||
}
|