#include "TextMetrics.h"
-#include "Bidi.h"
#include "Buffer.h"
#include "buffer_funcs.h"
#include "BufferParams.h"
#include "CoordCache.h"
#include "Cursor.h"
#include "CutAndPaste.h"
-#include "Encoding.h"
#include "HSpace.h"
#include "InsetList.h"
#include "Layout.h"
-#include "Length.h"
#include "LyXRC.h"
#include "MetricsInfo.h"
#include "ParagraphParameters.h"
-#include "ParIterator.h"
-#include "rowpainter.h"
+#include "RowPainter.h"
#include "Text.h"
#include "TextClass.h"
#include "VSpace.h"
-#include "WordLangTuple.h"
#include "insets/InsetText.h"
-#include "mathed/MacroTable.h"
#include "mathed/MathMacroTemplate.h"
#include "frontends/FontMetrics.h"
#include "frontends/Painter.h"
#include "support/debug.h"
-#include "support/docstring_list.h"
-#include "support/gettext.h"
#include "support/lassert.h"
-#include <cstdlib>
+#include <cmath>
using namespace std;
using frontend::FontMetrics;
-static int numberOfSeparators(Paragraph const & par, Row const & row)
+namespace {
+
+int numberOfSeparators(Row const & row)
{
- pos_type const first = max(row.pos(), par.beginOfBody());
- pos_type const last = row.endpos() - 1;
int n = 0;
- for (pos_type p = first; p < last; ++p) {
- if (par.isSeparator(p))
+ Row::const_iterator cit = row.begin();
+ Row::const_iterator const end = row.end();
+ for ( ; cit != end ; ++cit)
+ if (cit->type == Row::SEPARATOR)
++n;
- }
return n;
}
-static int numberOfLabelHfills(Paragraph const & par, Row const & row)
+void setSeparatorWidth(Row & row, double w)
+{
+ row.separator = w;
+ Row::iterator it = row.begin();
+ Row::iterator const end = row.end();
+ for ( ; it != end ; ++it)
+ if (it->type == Row::SEPARATOR)
+ it->extra = w;
+}
+
+
+int numberOfLabelHfills(Paragraph const & par, Row const & row)
{
pos_type last = row.endpos() - 1;
pos_type first = row.pos();
}
-static int numberOfHfills(Paragraph const & par, Row const & row)
+int numberOfHfills(Row const & row, pos_type const body_pos)
{
- pos_type const last = row.endpos();
- pos_type first = row.pos();
-
- // hfill *DO* count at the beginning of paragraphs!
- if (first) {
- while (first < last && par.isHfill(first))
- ++first;
- }
-
- first = max(first, par.beginOfBody());
-
int n = 0;
- for (pos_type p = first; p < last; ++p) {
- if (par.isHfill(p))
+ Row::const_iterator cit = row.begin();
+ Row::const_iterator const end = row.end();
+ for ( ; cit != end ; ++cit)
+ if (cit->pos >= body_pos
+ && cit->inset && cit->inset->isHfill())
++n;
- }
return n;
}
+}
+
/////////////////////////////////////////////////////////////////////
//
// TextMetrics
bool TextMetrics::isRTL(CursorSlice const & sl, bool boundary) const
{
- if (!lyxrc.rtl_support || !sl.text())
+ if (!sl.text())
return false;
int correction = 0;
bool TextMetrics::isRTLBoundary(pit_type pit, pos_type pos) const
{
// no RTL boundary at paragraph start
- if (!lyxrc.rtl_support || pos == 0)
+ if (pos == 0)
return false;
Font const & left_font = displayFont(pit, pos - 1);
bool TextMetrics::isRTLBoundary(pit_type pit, pos_type pos,
Font const & font) const
{
- if (!lyxrc.rtl_support
- // no RTL boundary at paragraph start
- || pos == 0
+ if (// no RTL boundary at paragraph start
+ pos == 0
// if the metrics have not been calculated, then we are not
// on screen and can safely ignore issues about boundaries.
|| !contains(pit))
// FED FED| FED )
if (startpos == pos && endpos == pos && endpos != par.size()
&& (par.isNewline(pos - 1)
+ || par.isEnvSeparator(pos - 1)
|| par.isLineSeparator(pos - 1)
|| par.isSeparator(pos - 1)))
return false;
Cursor & cur = const_cast<Cursor &>(bv_->cursor());
// In some cases, we do not know how to record undo
if (&cur.inset() == &text_->inset())
- cur.recordUndo(ATOMIC_UNDO, pit, pit);
+ cur.recordUndo(pit, pit);
int const moveCursor = par.fixBiblio(buffer);
MacroContext mc(&buffer, parPos);
MetricsInfo mi(bv_, font.fontInfo(), w, mc);
ii->inset->metrics(mi, dim);
- Dimension const old_dim = pm.insetDimension(ii->inset);
+ Dimension const & old_dim = pm.insetDimension(ii->inset);
if (old_dim != dim) {
pm.setInsetDimension(ii->inset, dim);
changed = true;
row.pos(first);
breakRow(row, right_margin, pit);
setRowHeight(row, pit);
- row.dimension().wid = rowWidth(right_margin, pit, first, row.endpos());
row.setChanged(false);
if (row_index || row.endpos() < par.size())
// If there is more than one row, expand the text to
Row & row = pm.rows()[row_index];
row.pos(first);
row.endpos(first);
- row.dimension().wid = rowWidth(right_margin, pit, first, first);
setRowHeight(row, pit);
row.setChanged(false);
int const max_row_width = max(dim_.wid, row.width());
}
+LyXAlignment TextMetrics::getAlign(Paragraph const & par, pos_type const pos) const
+{
+ Layout const & layout = par.layout();
+
+ LyXAlignment align;
+ if (par.params().align() == LYX_ALIGN_LAYOUT)
+ align = layout.align;
+ else
+ align = par.params().align();
+
+ // handle alignment inside tabular cells
+ Inset const & owner = text_->inset();
+ switch (owner.contentAlignment()) {
+ case LYX_ALIGN_CENTER:
+ case LYX_ALIGN_LEFT:
+ case LYX_ALIGN_RIGHT:
+ if (align == LYX_ALIGN_NONE || align == LYX_ALIGN_BLOCK)
+ align = owner.contentAlignment();
+ break;
+ default:
+ // unchanged (use align)
+ break;
+ }
+
+ // Display-style insets should always be on a centered row
+ if (Inset const * inset = par.getInset(pos)) {
+ switch (inset->display()) {
+ case Inset::AlignLeft:
+ align = LYX_ALIGN_BLOCK;
+ break;
+ case Inset::AlignCenter:
+ align = LYX_ALIGN_CENTER;
+ break;
+ case Inset::Inline:
+ // unchanged (use align)
+ break;
+ case Inset::AlignRight:
+ align = LYX_ALIGN_RIGHT;
+ break;
+ }
+ }
+
+ // Has the user requested we not justify stuff?
+ if (!bv_->buffer().params().justification
+ && align == LYX_ALIGN_BLOCK)
+ align = LYX_ALIGN_LEFT;
+
+ return align;
+}
+
+
void TextMetrics::computeRowMetrics(pit_type const pit,
Row & row, int width) const
{
Paragraph const & par = text_->getPar(pit);
- double w = width - row.width();
+ int const w = width - row.right_margin - row.width();
// FIXME: put back this assertion when the crash on new doc is solved.
//LASSERT(w >= 0, /**/);
- //lyxerr << "\ndim_.wid " << dim_.wid << endl;
- //lyxerr << "row.width() " << row.width() << endl;
- //lyxerr << "w " << w << endl;
-
bool const is_rtl = text_->isRTL(par);
if (is_rtl)
- row.x = rightMargin(pit);
+ row.left_margin = rightMargin(pit);
else
- row.x = leftMargin(max_width_, pit, row.pos());
+ row.left_margin = leftMargin(max_width_, pit, row.pos());
// is there a manual margin with a manual label
Layout const & layout = par.layout();
+ int nlh = 0;
if (layout.margintype == MARGIN_MANUAL
&& layout.labeltype == LABEL_MANUAL) {
/// We might have real hfills in the label part
- int nlh = numberOfLabelHfills(par, row);
+ nlh = numberOfLabelHfills(par, row);
// A manual label par (e.g. List) has an auto-hfill
// between the label text and the body of the
double hfill = 0;
// are there any hfills in the row?
- if (int const nh = numberOfHfills(par, row)) {
+ if (int const nh = numberOfHfills(row, par.beginOfBody())) {
if (w > 0)
- hfill = w / double(nh);
+ hfill = double(w) / nh;
// we don't have to look at the alignment if it is ALIGN_LEFT and
// if the row is already larger then the permitted width as then
// we force the LEFT_ALIGN'edness!
} else if (int(row.width()) < max_width_) {
// is it block, flushleft or flushright?
// set x how you need it
- int align;
- if (par.params().align() == LYX_ALIGN_LAYOUT)
- align = layout.align;
- else
- align = par.params().align();
-
- // handle alignment inside tabular cells
- Inset const & owner = text_->inset();
- switch (owner.contentAlignment()) {
- case LYX_ALIGN_CENTER:
- case LYX_ALIGN_LEFT:
- case LYX_ALIGN_RIGHT:
- if (align == LYX_ALIGN_NONE
- || align == LYX_ALIGN_BLOCK)
- align = owner.contentAlignment();
- break;
- default:
- // unchanged (use align)
- break;
- }
-
- // Display-style insets should always be on a centered row
- if (Inset const * inset = par.getInset(row.pos())) {
- switch (inset->display()) {
- case Inset::AlignLeft:
- align = LYX_ALIGN_BLOCK;
- break;
- case Inset::AlignCenter:
- align = LYX_ALIGN_CENTER;
- break;
- case Inset::Inline:
- // unchanged (use align)
- break;
- case Inset::AlignRight:
- align = LYX_ALIGN_RIGHT;
- break;
- }
- }
-
- // Has the user requested we not justify stuff?
- if (!bv_->buffer().params().justification
- && align == LYX_ALIGN_BLOCK)
- align = LYX_ALIGN_LEFT;
-
- switch (align) {
+ switch (getAlign(par, row.pos())) {
case LYX_ALIGN_BLOCK: {
- int const ns = numberOfSeparators(par, row);
- bool disp_inset = false;
- if (row.endpos() < par.size()) {
- Inset const * in = par.getInset(row.endpos());
- if (in)
- disp_inset = in->display();
- }
- // If we have separators, this is not the last row of a
- // par, does not end in newline, and is not row above a
- // display inset... then stretch it
- if (ns
- && row.endpos() < par.size()
- && !par.isNewline(row.endpos() - 1)
- && !disp_inset
- ) {
- row.separator = w / ns;
- //lyxerr << "row.separator " << row.separator << endl;
- //lyxerr << "ns " << ns << endl;
+ int const ns = numberOfSeparators(row);
+ /** If we have separators, and this row has
+ * not be broken abruptly by a display inset
+ * or newline, then stretch it */
+ if (ns && !row.right_boundary()
+ && row.endpos() != par.size()) {
+ setSeparatorWidth(row, double(w) / ns);
+ row.dimension().wid = width;
} else if (is_rtl) {
- row.x += w;
+ row.dimension().wid = width;
+ row.left_margin += w;
}
break;
}
case LYX_ALIGN_RIGHT:
- row.x += w;
+ row.left_margin += w;
break;
case LYX_ALIGN_CENTER:
- row.x += w / 2;
+ row.dimension().wid = width - w / 2;
+ row.left_margin += w / 2;
+ break;
+ case LYX_ALIGN_LEFT:
+ case LYX_ALIGN_NONE:
+ case LYX_ALIGN_LAYOUT:
+ case LYX_ALIGN_SPECIAL:
+ case LYX_ALIGN_DECIMAL:
break;
}
}
- if (is_rtl) {
- pos_type body_pos = par.beginOfBody();
- pos_type end = row.endpos();
-
- if (body_pos > 0
- && (body_pos > end || !par.isLineSeparator(body_pos - 1)))
- {
- row.x += theFontMetrics(text_->labelFont(par)).
- width(layout.labelsep);
- if (body_pos <= end)
- row.x += row.label_hfill;
- }
- }
-
+ // Finally, handle hfill insets
pos_type const endpos = row.endpos();
pos_type body_pos = par.beginOfBody();
if (body_pos > 0
- && (body_pos > endpos || !par.isLineSeparator(body_pos - 1)))
+ && (body_pos > endpos || !par.isLineSeparator(body_pos - 1)))
body_pos = 0;
-
ParagraphMetrics & pm = par_metrics_[pit];
- InsetList::const_iterator ii = par.insetList().begin();
- InsetList::const_iterator iend = par.insetList().end();
- for ( ; ii != iend; ++ii) {
- if (ii->pos >= endpos || ii->pos < row.pos()
- || (ii->inset->lyxCode() != SPACE_CODE ||
- !ii->inset->isStretchableSpace()))
+ Row::iterator cit = row.begin();
+ Row::iterator const cend = row.end();
+ for ( ; cit != cend; ++cit) {
+ if (row.label_hfill && cit->endpos == body_pos
+ && cit->type == Row::SPACE)
+ cit->dim.wid -= int(row.label_hfill * (nlh - 1));
+ if (!cit->inset || !cit->inset->isHfill())
continue;
- Dimension dim = row.dimension();
- if (pm.hfillExpansion(row, ii->pos))
- dim.wid = int(ii->pos >= body_pos ?
- max(hfill, 5.0) : row.label_hfill);
+ if (pm.hfillExpansion(row, cit->pos))
+ cit->dim.wid = int(cit->pos >= body_pos ?
+ max(hfill, 5.0) : row.label_hfill);
else
- dim.wid = 5;
+ cit->dim.wid = 5;
// Cache the inset dimension.
- bv_->coordCache().insets().add(ii->inset, dim);
- pm.setInsetDimension(ii->inset, dim);
+ bv_->coordCache().insets().add(cit->inset, cit->dim);
+ pm.setInsetDimension(cit->inset, cit->dim);
}
}
int TextMetrics::labelFill(pit_type const pit, Row const & row) const
{
Paragraph const & par = text_->getPar(pit);
-
- pos_type last = par.beginOfBody();
- LBUFERR(last > 0);
-
- // -1 because a label ends with a space that is in the label
- --last;
-
- // a separator at this end does not count
- if (par.isLineSeparator(last))
- --last;
+ LBUFERR(par.beginOfBody() > 0 || par.isEnvSeparator(0));
int w = 0;
- for (pos_type i = row.pos(); i <= last; ++i)
- w += singleWidth(pit, i);
+ Row::const_iterator cit = row.begin();
+ Row::const_iterator const end = row.end();
+ // iterate over elements before main body (except the last one,
+ // which is extra space).
+ while (cit!= end && cit->endpos < par.beginOfBody()) {
+ w += cit->dim.wid;
+ ++cit;
+ }
docstring const & label = par.params().labelWidthString();
if (label.empty())
} // anon namespace
+/** This is the function where the hard work is done. The code here is
+ * very sensitive to small changes :) Note that part of the
+ * intelligence is also in Row::shortenIfNeeded.
+ */
void TextMetrics::breakRow(Row & row, int const right_margin, pit_type const pit) const
{
Paragraph const & par = text_->getPar(pit);
pos_type const end = par.size();
pos_type const pos = row.pos();
- int const left = leftMargin(max_width_, pit, pos);
int const width = max_width_ - right_margin;
- if (pos == end || width < 0) {
+ pos_type const body_pos = par.beginOfBody();
+ row.clear();
+ // This make get changed in computeRowMetrics depending on RTL
+ row.left_margin = leftMargin(max_width_, pit, pos);
+ row.dimension().wid = row.left_margin;
+ row.right_margin = right_margin;
+
+ if (pos >= end || row.width() > width) {
row.endpos(end);
return;
}
return addressBreakPoint(pos, par);
#endif
-
// check for possible inline completion
DocIterator const & inlineCompletionPos = bv_->inlineCompletionPos();
pos_type inlineCompletionLPos = -1;
inlineCompletionLPos = inlineCompletionPos.pos() - 1;
}
- pos_type const body_pos = par.beginOfBody();
- int x = left;
- pos_type point = end;
-
- FontIterator fi = FontIterator(*this, par, pit, pos);
- // Accumulator for character strings
- docstring chunkstr;
- Font chunkfont = *fi;
-
// Now we iterate through until we reach the right margin
- // or the end of the par, then choose the possible break
- // nearest that.
-
+ // or the end of the par, then build a representation of the row.
pos_type i = pos;
- for ( ; i < end; ++i, ++fi) {
- // Add the chunk width when it is finished
- if (par.isInset(i) || *fi != chunkfont
- || (body_pos && i == body_pos)) {
- x += theFontMetrics(chunkfont).width(chunkstr);
- chunkstr.clear();
- chunkfont = *fi;
- }
-
+ FontIterator fi = FontIterator(*this, par, pit, pos);
+ while (i < end && row.width() < width) {
char_type c = par.getChar(i);
- Language const * language = fi->language();
// The most special cases are handled first.
if (par.isInset(i)) {
- x += pm.insetDimension(par.getInset(i)).wid;
+ Inset const * ins = par.getInset(i);
+ Dimension dim = pm.insetDimension(ins);
+ row.add(i, ins, dim, *fi, par.lookupChange(i));
+ } else if (c == ' ' && i + 1 == body_pos) {
+ // There is a space at i, but it should not be
+ // added as a separator, because it is just
+ // before body_pos. Instead, insert some spacing to
+ // align text
+ FontMetrics const & fm = theFontMetrics(text_->labelFont(par));
+ // this is needed to make sure that the row width is correct
+ row.finalizeLast();
+ int const add = max(fm.width(par.layout().labelsep),
+ labelEnd(pit) - row.width());
+ row.addSpace(i, add, *fi, par.lookupChange(i));
+ } else if (par.isLineSeparator(i)) {
+ // In theory, no inset has this property. If
+ // this is done, a new addSeparator which
+ // takes an inset as parameter should be
+ // added.
+ LATTEST(!par.isInset(i));
+ row.addSeparator(i, c, *fi, par.lookupChange(i));
} else if (c == '\t')
- chunkstr += " ";
- else if (language->rightToLeft()) {
- if (language->lang() == "arabic_arabtex" ||
- language->lang() == "arabic_arabi" ||
- language->lang() == "farsi") {
- if (!Encodings::isArabicComposeChar(c))
- chunkstr += par.transformChar(c, i);
- } else if (language->lang() == "hebrew" &&
- !Encodings::isHebrewComposeChar(c)) {
- chunkstr+= c;
- }
- } else
- chunkstr += c;
-
- if (lyxrc.paragraph_markers
- && i == end - 1 && size_type(pit + 1) < pars.size())
- // enlarge the last character to hold the end-of-par marker
- chunkstr += char_type(0x00B6);
+ row.addSpace(i, theFontMetrics(*fi).width(from_ascii(" ")),
+ *fi, par.lookupChange(i));
+ else
+ row.add(i, c, *fi, par.lookupChange(i));
// add inline completion width
- if (inlineCompletionLPos == i)
- chunkstr += bv_->inlineCompletion();
-
- // add the auto-hfill from label end to the body
- if (body_pos && i == body_pos) {
- FontMetrics const & fm = theFontMetrics(
- text_->labelFont(par));
- int add = fm.width(par.layout().labelsep);
- //if (par.isLineSeparator(i - 1))
- // add -= singleWidth(pit, i - 1);
-
- add = max(add, labelEnd(pit) - x);
- x += add;
+ if (inlineCompletionLPos == i &&
+ !bv_->inlineCompletion().empty()) {
+ Font f = *fi;
+ f.fontInfo().setColor(Color_inlinecompletion);
+ row.addVirtual(i + 1, bv_->inlineCompletion(),
+ f, Change());
}
- if (par.isNewline(i)) {
- point = i + 1;
- break;
- }
+ // Handle some situations that abruptly terminate the row
+ // - A newline inset
+ // - Before a display inset
+ // - After a display inset
Inset const * inset = 0;
- // Break before...
- if (i + 1 < end) {
- if ((inset = par.getInset(i + 1)) && inset->display()) {
- point = i + 1;
- break;
- }
- // ...and after.
- if ((inset = par.getInset(i)) && inset->display()) {
- point = i + 1;
- break;
- }
+ if (par.isNewline(i) || par.isEnvSeparator(i)
+ || (i + 1 < end && (inset = par.getInset(i + 1))
+ && inset->display())
+ || (!row.empty() && row.back().inset
+ && row.back().inset->display())) {
+ row.right_boundary(true);
+ ++i;
+ break;
}
- if (par.isLineSeparator(i)) {
- x += theFontMetrics(chunkfont).width(chunkstr);
- chunkstr.clear();
- chunkfont = *fi;
- if (x >= width) {
- // exit on last registered breakpoint:
- break;
- }
- // register breakpoint:
- point = i + 1;
- }
+ ++i;
+ ++fi;
}
-
- if (i == end) {
- x += theFontMetrics(chunkfont).width(chunkstr);
- // maybe found one, but the par is short enough.
- if (x < width)
- point = end;
+ row.finalizeLast();
+ row.endpos(i);
+
+ // End of paragraph marker
+ if (lyxrc.paragraph_markers
+ && i == end && size_type(pit + 1) < pars.size()) {
+ // add a virtual element for the end-of-paragraph
+ // marker; it is shown on screen, but does not exist
+ // in the paragraph.
+ Font f(text_->layoutFont(pit));
+ f.fontInfo().setColor(Color_paragraphmarker);
+ BufferParams const & bparams
+ = text_->inset().buffer().params();
+ f.setLanguage(par.getParLanguage(bparams));
+ row.addVirtual(end, docstring(1, char_type(0x00B6)), f, Change());
}
- // manual labels cannot be broken in LaTeX. But we
- // want to make our on-screen rendering of footnotes
- // etc. still break
- if (body_pos && point < body_pos)
- point = body_pos;
+ // if the row is too large, try to cut at last separator.
+ row.shortenIfNeeded(body_pos, width);
- row.endpos(point);
+ // make sure that the RTL elements are in reverse ordering
+ row.reverseRTL(text_->isRTL(par));
}
-int TextMetrics::rowWidth(int right_margin, pit_type const pit,
- pos_type const first, pos_type const end) const
-{
- // get the pure distance
- ParagraphMetrics const & pm = par_metrics_[pit];
- Paragraph const & par = text_->getPar(pit);
- int w = leftMargin(max_width_, pit, first);
- int label_end = labelEnd(pit);
-
- // check for possible inline completion
- DocIterator const & inlineCompletionPos = bv_->inlineCompletionPos();
- pos_type inlineCompletionLPos = -1;
- if (inlineCompletionPos.inTexted()
- && inlineCompletionPos.text() == text_
- && inlineCompletionPos.pit() == pit) {
- // draw logically behind the previous character
- inlineCompletionLPos = inlineCompletionPos.pos() - 1;
- }
-
- pos_type const body_pos = par.beginOfBody();
- pos_type i = first;
-
- if (i < end) {
- FontIterator fi = FontIterator(*this, par, pit, i);
- for ( ; i < end; ++i, ++fi) {
- if (body_pos > 0 && i == body_pos) {
- FontMetrics const & fm = theFontMetrics(
- text_->labelFont(par));
- w += fm.width(par.layout().labelsep);
- if (par.isLineSeparator(i - 1))
- w -= singleWidth(pit, i - 1);
- w = max(w, label_end);
- }
-
- // a line separator at the end of a line (but not at the end of a
- // paragraph) will not be drawn and should therefore not count for
- // the row width.
- if (!par.isLineSeparator(i) || i != end - 1 || end == par.size())
- w += pm.singleWidth(i, *fi);
-
- // add inline completion width
- if (inlineCompletionLPos == i) {
- docstring const & completion = bv_->inlineCompletion();
- if (completion.length() > 0)
- w += theFontMetrics(*fi).width(completion);
- }
- }
- }
-
- // count the paragraph end marker.
- if (end == par.size() && lyxrc.paragraph_markers) {
- ParagraphList const & pars_ = text_->paragraphs();
- if (size_type(pit + 1) < pars_.size()) {
- // enlarge the last character to hold the
- // end-of-par marker
- docstring const s(1, char_type(0x00B6));
- Font f;
- w += theFontMetrics(f).width(s);
- }
- }
-
- if (body_pos > 0 && body_pos >= end) {
- FontMetrics const & fm = theFontMetrics(
- text_->labelFont(par));
- w += fm.width(par.layout().labelsep);
- if (end > 0 && par.isLineSeparator(end - 1))
- w -= singleWidth(pit, end - 1);
- w = max(w, label_end);
- }
-
- return w + right_margin;
-}
-
-
-void TextMetrics::setRowHeight(Row & row, pit_type const pit,
+void TextMetrics::setRowHeight(Row & row, pit_type const pit,
bool topBottomSpace) const
{
Paragraph const & par = text_->getPar(pit);
// insets may be taller
ParagraphMetrics const & pm = par_metrics_[pit];
- InsetList::const_iterator ii = par.insetList().begin();
- InsetList::const_iterator iend = par.insetList().end();
- for ( ; ii != iend; ++ii) {
- if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
- Dimension const & dim = pm.insetDimension(ii->inset);
+ Row::const_iterator cit = row.begin();
+ Row::const_iterator cend = row.end();
+ for ( ; cit != cend; ++cit) {
+ if (cit->inset) {
+ Dimension const & dim = pm.insetDimension(cit->inset);
maxasc = max(maxasc, dim.ascent());
maxdesc = max(maxdesc, dim.descent());
}
// special code for the top label
if (layout.labelIsAbove()
&& (!layout.isParagraphGroup() || text_->isFirstInSequence(pit))
- && !par.labelString().empty())
- {
+ && !par.labelString().empty()) {
labeladdon = int(
labelfont_metrics.maxHeight()
* layout.spacing.getValue()
double unusual = 0;
cpit = text_->depthHook(cpit, pars[nextpit].getDepth());
if (pars[cpit].layout() != pars[nextpit].layout()
- || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
- {
+ || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
unusual = pars[cpit].layout().bottomsep * dh;
- }
layoutdesc = max(unusual, usual);
} else if (pars[cpit].getDepth() == pars[nextpit].getDepth()) {
if (pars[cpit].layout() != pars[nextpit].layout()
// x is an absolute screen coord
// returns the column near the specified x-coordinate of the row
// x is set to the real beginning of this column
-pos_type TextMetrics::getColumnNearX(pit_type const pit,
- Row const & row, int & x, bool & boundary) const
+pos_type TextMetrics::getPosNearX(Row const & row, int & x,
+ bool & boundary) const
{
- Buffer const & buffer = bv_->buffer();
-
/// For the main Text, it is possible that this pit is not
/// yet in the CoordCache when moving cursor up.
/// x Paragraph coordinate is always 0 for main text anyway.
int const xo = origin_.x_;
x -= xo;
- Paragraph const & par = text_->getPar(pit);
- Bidi bidi;
- bidi.computeTables(par, buffer, row);
-
- pos_type vc = row.pos();
- pos_type const end = row.endpos();
- pos_type c = 0;
- Layout const & layout = par.layout();
-
- bool left_side = false;
-
- pos_type body_pos = par.beginOfBody();
-
- double tmpx = row.x;
- double last_tmpx = tmpx;
-
- if (body_pos > 0 &&
- (body_pos > end || !par.isLineSeparator(body_pos - 1)))
- body_pos = 0;
-
- // check for empty row
- if (vc == end) {
- x = int(tmpx) + xo;
- return 0;
- }
-
- // This (rtl_support test) is not needed, but gives
- // some speedup if rtl_support == false
- bool const lastrow = lyxrc.rtl_support && row.endpos() == par.size();
-
- // If lastrow is false, we don't need to compute
- // the value of rtl.
- bool const rtl_on_lastrow = lastrow ? text_->isRTL(par) : false;
-
- while (vc < end && tmpx <= x) {
- c = bidi.vis2log(vc);
- last_tmpx = tmpx;
- if (body_pos > 0 && c == body_pos - 1) {
- FontMetrics const & fm = theFontMetrics(
- text_->labelFont(par));
- tmpx += row.label_hfill + fm.width(layout.labelsep);
- if (par.isLineSeparator(body_pos - 1))
- tmpx -= singleWidth(pit, body_pos - 1);
- }
-
- tmpx += singleWidth(pit, c);
- if (par.isSeparator(c) && c >= body_pos)
- tmpx += row.separator;
- ++vc;
- }
-
- if ((tmpx + last_tmpx) / 2 > x) {
- tmpx = last_tmpx;
- left_side = true;
- }
-
- // This shouldn't happen. But we can reset and try to continue.
- LASSERT(vc <= end, vc = end);
+ pos_type pos = row.pos();
boundary = false;
-
- if (lastrow &&
- ((rtl_on_lastrow && left_side && vc == row.pos() && x < tmpx - 5) ||
- (!rtl_on_lastrow && !left_side && vc == end && x > tmpx + 5))) {
- if (!par.isNewline(end - 1))
- c = end;
- } else if (vc == row.pos()) {
- c = bidi.vis2log(vc);
- if (bidi.level(c) % 2 == 1)
- ++c;
+ if (row.empty())
+ x = row.left_margin;
+ else if (x <= row.left_margin) {
+ pos = row.front().left_pos();
+ x = row.left_margin;
+ } else if (x >= row.width()) {
+ pos = row.back().right_pos();
+ x = row.width();
} else {
- c = bidi.vis2log(vc - 1);
- bool const rtl = (bidi.level(c) % 2 == 1);
- if (left_side == rtl) {
- ++c;
- boundary = isRTLBoundary(pit, c);
+ double w = row.left_margin;
+ Row::const_iterator cit = row.begin();
+ Row::const_iterator cend = row.end();
+ for ( ; cit != cend; ++cit) {
+ if (w <= x && w + cit->full_width() > x) {
+ int x_offset = int(x - w);
+ pos = cit->x2pos(x_offset);
+ x = int(x_offset + w);
+ break;
+ }
+ w += cit->full_width();
}
+ if (cit == row.end()) {
+ pos = row.back().right_pos();
+ x = row.width();
+ }
+ /** This tests for the case where the cursor is placed
+ * just before a font direction change. See comment on
+ * the boundary_ member in DocIterator.h to understand
+ * how boundary helps here.
+ */
+ else if (pos == cit->endpos
+ && cit + 1 != row.end()
+ && cit->font.isVisibleRightToLeft() != (cit + 1)->font.isVisibleRightToLeft())
+ boundary = true;
}
-// I believe this code is not needed anymore (Jug 20050717)
-#if 0
- // The following code is necessary because the cursor position past
- // the last char in a row is logically equivalent to that before
- // the first char in the next row. That's why insets causing row
- // divisions -- Newline and display-style insets -- must be treated
- // specially, so cursor up/down doesn't get stuck in an air gap -- MV
- // Newline inset, air gap below:
- if (row.pos() < end && c >= end && par.isNewline(end - 1)) {
- if (bidi.level(end -1) % 2 == 0)
- tmpx -= singleWidth(pit, end - 1);
- else
- tmpx += singleWidth(pit, end - 1);
- c = end - 1;
- }
-
- // Air gap above display inset:
- if (row.pos() < end && c >= end && end < par.size()
- && par.isInset(end) && par.getInset(end)->display()) {
- c = end - 1;
- }
- // Air gap below display inset:
- if (row.pos() < end && c >= end && par.isInset(end - 1)
- && par.getInset(end - 1)->display()) {
- c = end - 1;
- }
-#endif
-
- x = int(tmpx) + xo;
- pos_type const col = c - row.pos();
-
- if (!c || end == par.size())
- return col;
-
- if (c==end && !par.isLineSeparator(c-1) && !par.isNewline(c-1)) {
+ /** This tests for the case where the cursor is set at the end
+ * of a row which has been broken due something else than a
+ * separator (a display inset or a forced breaking of the
+ * row). We know that there is a separator when the end of the
+ * row is larger than the end of its last element.
+ */
+ if (!row.empty() && pos == row.back().endpos
+ && row.back().endpos == row.endpos())
boundary = true;
- return col;
- }
- return min(col, end - 1 - row.pos());
+ x += xo;
+ return pos;
}
LBUFERR(row < int(pm.rows().size()));
bool bound = false;
Row const & r = pm.rows()[row];
- return r.pos() + getColumnNearX(pit, r, x, bound);
+ return getPosNearX(r, x, bound);
}
if (!it) {
// No inset, set position in the text
- bool bound = false; // is modified by getColumnNearX
- int xx = x; // is modified by getColumnNearX
- cur.pos() = row.pos()
- + getColumnNearX(pit, row, xx, bound);
+ bool bound = false; // is modified by getPosNearX
+ int xx = x; // is modified by getPosNearX
+ cur.pos() = getPosNearX(row, xx, bound);
cur.boundary(bound);
cur.setCurrentFont();
cur.setTargetX(xx);
bool bound = false;
int xx = x;
- pos_type const pos = row.pos() + getColumnNearX(pit, row, xx, bound);
+ pos_type const pos = getPosNearX(row, xx, bound);
LYXERR(Debug::DEBUG, "setting cursor pit: " << pit << " pos: " << pos);
LYXERR(Debug::DEBUG, "xo: " << p.x_ << "..." << p.x_ + dim.wid
<< " yo: " << p.y_ - dim.asc << "..." << p.y_ + dim.des);
- if (x >= p.x_
- && x <= p.x_ + dim.wid
- && y >= p.y_ - dim.asc
- && y <= p.y_ + dim.des) {
+ if (x >= p.x_ && x <= p.x_ + dim.wid
+ && y >= p.y_ - dim.asc && y <= p.y_ + dim.des) {
LYXERR(Debug::DEBUG, "Hit inset: " << inset);
return const_cast<InsetList::InsetTable *>(&(*iit));
}
bool boundary) const
{
LASSERT(sl.text() == text_, return 0);
- pit_type const pit = sl.pit();
- Paragraph const & par = text_->paragraphs()[pit];
- ParagraphMetrics const & pm = par_metrics_[pit];
+
+ ParagraphMetrics const & pm = par_metrics_[sl.pit()];
if (pm.rows().empty())
return 0;
-
- pos_type ppos = sl.pos();
- // Correct position in front of big insets
- bool const boundary_correction = ppos != 0 && boundary;
- if (boundary_correction)
- --ppos;
-
Row const & row = pm.getRow(sl.pos(), boundary);
-
- pos_type cursor_vpos = 0;
-
- Buffer const & buffer = bv_->buffer();
- double x = row.x;
- Bidi bidi;
- bidi.computeTables(par, buffer, row);
-
- pos_type const row_pos = row.pos();
- pos_type const end = row.endpos();
- // Spaces at logical line breaks in bidi text must be skipped during
- // cursor positioning. However, they may appear visually in the middle
- // of a row; they must be skipped, wherever they are...
- // * logically "abc_[HEBREW_\nHEBREW]"
- // * visually "abc_[_WERBEH\nWERBEH]"
- pos_type skipped_sep_vpos = -1;
-
- if (end <= row_pos)
- cursor_vpos = row_pos;
- else if (ppos >= end)
- cursor_vpos = text_->isRTL(par) ? row_pos : end;
- else if (ppos > row_pos && ppos >= end)
- //FIXME: this code is never reached!
- // (see http://www.lyx.org/trac/changeset/8251)
- // Place cursor after char at (logical) position pos - 1
- cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
- ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
- else
- // Place cursor before char at (logical) position ppos
- cursor_vpos = (bidi.level(ppos) % 2 == 0)
- ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
-
- pos_type body_pos = par.beginOfBody();
- if (body_pos > 0 &&
- (body_pos > end || !par.isLineSeparator(body_pos - 1)))
- body_pos = 0;
-
- // check for possible inline completion in this row
- DocIterator const & inlineCompletionPos = bv_->inlineCompletionPos();
- pos_type inlineCompletionVPos = -1;
- if (inlineCompletionPos.inTexted()
- && inlineCompletionPos.text() == text_
- && inlineCompletionPos.pit() == pit
- && inlineCompletionPos.pos() - 1 >= row_pos
- && inlineCompletionPos.pos() - 1 < end) {
- // draw logically behind the previous character
- inlineCompletionVPos = bidi.log2vis(inlineCompletionPos.pos() - 1);
- }
-
- // Use font span to speed things up, see below
- FontSpan font_span;
- Font font;
-
- // If the last logical character is a separator, skip it, unless
- // it's in the last row of a paragraph; see skipped_sep_vpos declaration
- if (end > 0 && end < par.size() && par.isSeparator(end - 1))
- skipped_sep_vpos = bidi.log2vis(end - 1);
-
- if (lyxrc.paragraph_markers && text_->isRTL(par)) {
- ParagraphList const & pars_ = text_->paragraphs();
- if (size_type(pit + 1) < pars_.size()) {
- FontInfo f;
- docstring const s = docstring(1, char_type(0x00B6));
- x += theFontMetrics(f).width(s);
- }
- }
-
- // Inline completion RTL special case row_pos == cursor_pos:
- // "__|b" => cursor_pos is right of __
- if (row_pos == inlineCompletionVPos && row_pos == cursor_vpos) {
- font = displayFont(pit, row_pos + 1);
- docstring const & completion = bv_->inlineCompletion();
- if (font.isRightToLeft() && completion.length() > 0)
- x += theFontMetrics(font.fontInfo()).width(completion);
- }
-
- for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
- // Skip the separator which is at the logical end of the row
- if (vpos == skipped_sep_vpos)
- continue;
- pos_type pos = bidi.vis2log(vpos);
- if (body_pos > 0 && pos == body_pos - 1) {
- FontMetrics const & labelfm = theFontMetrics(
- text_->labelFont(par));
- x += row.label_hfill + labelfm.width(par.layout().labelsep);
- if (par.isLineSeparator(body_pos - 1))
- x -= singleWidth(pit, body_pos - 1);
- }
-
- // Use font span to speed things up, see above
- if (pos < font_span.first || pos > font_span.last) {
- font_span = par.fontSpan(pos);
- font = displayFont(pit, pos);
- }
-
- x += pm.singleWidth(pos, font);
-
- // Inline completion RTL case:
- // "a__|b", __ of b => non-boundary a-pos is right of __
- if (vpos + 1 == inlineCompletionVPos
- && (vpos + 1 < cursor_vpos || !boundary_correction)) {
- font = displayFont(pit, vpos + 1);
- docstring const & completion = bv_->inlineCompletion();
- if (font.isRightToLeft() && completion.length() > 0)
- x += theFontMetrics(font.fontInfo()).width(completion);
- }
-
- // Inline completion LTR case:
- // "b|__a", __ of b => non-boundary a-pos is in front of __
- if (vpos == inlineCompletionVPos
- && (vpos + 1 < cursor_vpos || boundary_correction)) {
- font = displayFont(pit, vpos);
- docstring const & completion = bv_->inlineCompletion();
- if (!font.isRightToLeft() && completion.length() > 0)
- x += theFontMetrics(font.fontInfo()).width(completion);
+ pos_type const pos = sl.pos();
+
+ /**
+ * When boundary is true, position i is in the row element (pos, endpos)
+ * if
+ * pos < i <= endpos
+ * whereas, when boundary is false, the test is
+ * pos <= i < endpos
+ * The correction below allows to handle both cases.
+ */
+ int const boundary_corr = (boundary && pos) ? -1 : 0;
+
+ /** Early return in trivial cases
+ * 1) the row is empty
+ * 2) the position is the left-most position of the row; there
+ * is a quirck herehowever: if the first element is virtual
+ * (end-of-par marker for example), then we have to look
+ * closer
+ */
+ if (row.empty()
+ || (pos == row.begin()->left_pos()
+ && pos != row.begin()->right_pos()))
+ return row.left_margin;
+
+ Row::const_iterator cit = row.begin();
+ double x = row.left_margin;
+ for ( ; cit != row.end() ; ++cit) {
+ /** Look whether the cursor is inside the element's
+ * span. Note that it is necessary to take the
+ * boundary in account, and to accept virtual
+ * elements, which have pos == endpos.
+ */
+ if (pos + boundary_corr >= cit->pos
+ && (pos + boundary_corr < cit->endpos
+ || cit->pos == cit->endpos)) {
+ x += cit->pos2x(pos);
+ break;
}
-
- if (par.isSeparator(pos) && pos >= body_pos)
- x += row.separator;
- }
-
- // see correction above
- if (boundary_correction) {
- if (isRTL(sl, boundary))
- x -= singleWidth(pit, ppos);
- else
- x += singleWidth(pit, ppos);
+ x += cit->full_width();
}
return int(x);
bool boundary = false;
if (end != cur.lastpos()) {
if (!cur.paragraph().isLineSeparator(end-1)
- && !cur.paragraph().isNewline(end-1))
+ && !cur.paragraph().isNewline(end-1)
+ && !cur.paragraph().isEnvSeparator(end-1))
boundary = true;
else
--end;
l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
tclass.leftmargin());
- if (par.getDepth() != 0) {
+ int depth = par.getDepth();
+ if (depth != 0) {
// find the next level paragraph
pit_type newpar = text_->outerHook(pit);
if (newpar != pit_type(pars.size())) {
if (pars[newpar].layout().isEnvironment()) {
- l_margin = leftMargin(max_width, newpar);
+ int nestmargin = depth * nestMargin();
+ if (text_->isMainText())
+ nestmargin += changebarMargin();
+ l_margin = max(leftMargin(max_width, newpar), nestmargin);
// Remove the parindent that has been added
// if the paragraph was empty.
- if (pars[newpar].empty()) {
+ if (pars[newpar].empty() &&
+ buffer.params().paragraph_separation ==
+ BufferParams::ParagraphIndentSeparation) {
docstring pi = pars[newpar].layout().parindent;
l_margin -= theFontMetrics(
buffer.params().getFont()).signedWidth(pi);
// This happens after sections or environments in standard classes.
// We have to check the previous layout at same depth.
- if (tclass.isDefaultLayout(par.layout()) && pit > 0
- && pars[pit - 1].getDepth() >= par.getDepth()) {
+ if (buffer.params().paragraph_separation ==
+ BufferParams::ParagraphSkipSeparation)
+ parindent.erase();
+ else if (pit > 0 && pars[pit - 1].getDepth() >= par.getDepth()) {
pit_type prev = text_->depthHook(pit, par.getDepth());
- if (pars[prev < pit ? prev : pit - 1].layout().nextnoindent)
+ if (par.layout() == pars[prev].layout()) {
+ if (prev != pit - 1
+ && pars[pit - 1].layout().nextnoindent)
+ parindent.erase();
+ } else if (pars[prev].layout().nextnoindent)
parindent.erase();
}
}
if (!par.params().leftIndent().zero())
- l_margin += par.params().leftIndent().inPixels(max_width);
+ l_margin += par.params().leftIndent().inPixels(max_width, labelfont_metrics.em());
LyXAlignment align;
// set the correct parindent
if (pos == 0
&& (layout.labeltype == LABEL_NO_LABEL
- || layout.labeltype == LABEL_ABOVE
- || layout.labeltype == LABEL_CENTERED
- || (layout.labeltype == LABEL_STATIC
- && layout.latextype == LATEX_ENVIRONMENT
- && !text_->isFirstInSequence(pit)))
+ || layout.labeltype == LABEL_ABOVE
+ || layout.labeltype == LABEL_CENTERED
+ || (layout.labeltype == LABEL_STATIC
+ && layout.latextype == LATEX_ENVIRONMENT
+ && !text_->isFirstInSequence(pit)))
&& (align == LYX_ALIGN_BLOCK || align == LYX_ALIGN_LEFT)
&& !par.params().noindent()
// in some insets, paragraphs are never indented
&& !text_->inset().neverIndent()
// display style insets are always centered, omit indentation
&& !(!par.empty()
- && par.isInset(pos)
- && par.getInset(pos)->display())
- && (!(tclass.isDefaultLayout(par.layout())
- || tclass.isPlainLayout(par.layout()))
+ && par.isInset(pos)
+ && par.getInset(pos)->display())
+ && (!(tclass.isDefaultLayout(par.layout())
+ || tclass.isPlainLayout(par.layout()))
|| buffer.params().paragraph_separation
- == BufferParams::ParagraphIndentSeparation)
- )
- {
- // use the parindent of the layout when the default indentation is
- // used otherwise use the indentation set in the document settings
+ == BufferParams::ParagraphIndentSeparation)) {
+ // use the parindent of the layout when the
+ // default indentation is used otherwise use
+ // the indentation set in the document
+ // settings
if (buffer.params().getIndentation().asLyXCommand() == "default")
l_margin += theFontMetrics(
buffer.params().getFont()).signedWidth(parindent);
}
-int TextMetrics::singleWidth(pit_type pit, pos_type pos) const
-{
- ParagraphMetrics const & pm = par_metrics_[pit];
-
- return pm.singleWidth(pos, displayFont(pit, pos));
-}
-
-
void TextMetrics::draw(PainterInfo & pi, int x, int y) const
{
if (par_metrics_.empty())
}
-void TextMetrics::drawParagraph(PainterInfo & pi, pit_type pit, int x, int y) const
+void TextMetrics::drawParagraph(PainterInfo & pi, pit_type const pit, int const x, int y) const
{
BufferParams const & bparams = bv_->buffer().params();
ParagraphMetrics const & pm = par_metrics_[pit];
if (pm.rows().empty())
return;
- Bidi bidi;
bool const original_drawing_state = pi.pain.isDrawingEnabled();
int const ww = bv_->workHeight();
size_t const nrows = pm.rows().size();
for (size_t i = 0; i != nrows; ++i) {
Row const & row = pm.rows()[i];
+ int row_x = x;
if (i)
y += row.ascent();
+ CursorSlice rowSlice(const_cast<InsetText &>(text_->inset()));
+ rowSlice.pit() = pit;
+ rowSlice.pos() = row.pos();
+
bool const inside = (y + row.descent() >= 0
&& y - row.ascent() < ww);
+
+ // Adapt to cursor row scroll offset if applicable.
+ if (bv_->currentRowSlice() == rowSlice)
+ row_x -= bv_->horizScrollOffset();
+
// It is not needed to draw on screen if we are not inside.
pi.pain.setDrawingEnabled(inside && original_drawing_state);
- RowPainter rp(pi, *text_, pit, row, bidi, x, y);
+
+ RowPainter rp(pi, *text_, pit, row, row_x, y);
if (selection)
row.setSelectionAndMargins(sel_beg_par, sel_end_par);
}
// Row signature; has row changed since last paint?
- row.setCrc(pm.computeRowSignature(row, bparams));
- bool row_has_changed = row.changed();
+ if (pi.pain.isDrawingEnabled())
+ row.setCrc(pm.computeRowSignature(row, bparams));
+ bool row_has_changed = row.changed()
+ || rowSlice == bv_->lastRowSlice();
// Take this opportunity to spellcheck the row contents.
- if (row_has_changed && lyxrc.spellcheck_continuously) {
+ if (row_has_changed && pi.do_spellcheck && lyxrc.spellcheck_continuously) {
text_->getPar(pit).spellCheck();
}
// Clear background of this row if paragraph background was not
// already cleared because of a full repaint.
if (!pi.full_repaint && row_has_changed) {
- pi.pain.fillRectangle(x, y - row.ascent(),
+ LYXERR(Debug::PAINTING, "Clear rect@("
+ << max(row_x, 0) << ", " << y - row.ascent() << ")="
+ << width() << " x " << row.height());
+ pi.pain.fillRectangle(max(row_x, 0), y - row.ascent(),
width(), row.height(), pi.background_color);
}
LYXERR(Debug::PAINTING, foreword << "pit=" << pit << " row=" << i
<< " row_selection=" << row.selection()
<< " full_repaint=" << pi.full_repaint
- << " row_has_changed=" << row_has_changed);
+ << " row_has_changed=" << row_has_changed
+ << " drawingEnabled=" << pi.pain.isDrawingEnabled());
}
// Backup full_repaint status and force full repaint
rp.paintLast();
if (i == 0 && is_rtl)
rp.paintFirst();
+ rp.paintTooLargeMarks(row_x < 0,
+ row_x + row.width() > bv_->workWidth());
y += row.descent();
// Restore full_repaint status.
//lyxerr << " wordstart=" << wordStart << " bvcur=" << bvcur << " cur=" << cur << std::endl;
}
-//int TextMetrics::pos2x(pit_type pit, pos_type pos) const
-//{
-// ParagraphMetrics const & pm = par_metrics_[pit];
-// Row const & r = pm.rows()[row];
-// int x = 0;
-// pos -= r.pos();
-//}
-
-
int defaultRowHeight()
{
return int(theFontMetrics(sane_font).maxHeight() * 1.2);
projects / lyx.git / blobdiff