]> git.lyx.org Git - lyx.git/blobdiff - src/RowPainter.cpp
Account for old versions of Pygments
[lyx.git] / src / RowPainter.cpp
index 5b3e6472eddcbae55ca2362e678b32bfdfc368c8..55155716bea43c2a7afac6cc6055210b0a3c2de7 100644 (file)
@@ -26,7 +26,6 @@
 #include "Row.h"
 #include "MetricsInfo.h"
 #include "Paragraph.h"
-#include "ParagraphMetrics.h"
 #include "ParagraphParameters.h"
 #include "TextMetrics.h"
 #include "VSpace.h"
@@ -45,6 +44,8 @@
 #include "support/lassert.h"
 #include <boost/crc.hpp>
 
+#include <stdlib.h>
+
 using namespace std;
 
 namespace lyx {
@@ -56,11 +57,11 @@ using frontend::FontMetrics;
 RowPainter::RowPainter(PainterInfo & pi,
        Text const & text, Row const & row, int x, int y)
        : pi_(pi), text_(text),
-         text_metrics_(pi_.base.bv->textMetrics(&text)),
+         tm_(pi_.base.bv->textMetrics(&text)),
          pars_(text.paragraphs()),
          row_(row), par_(text.paragraphs()[row.pit()]),
-         pm_(text_metrics_.parMetrics(row.pit())), change_(pi_.change_),
-         xo_(x), yo_(y), width_(text_metrics_.width())
+         change_(pi_.change_),
+         xo_(x), yo_(y)
 {
        x_ = row_.left_margin + xo_;
 
@@ -204,7 +205,8 @@ void RowPainter::paintMisspelledMark(Row::Element const & e) const
                if (x1 > x2)
                        swap(x1, x2);
 
-               pi_.pain.line(x_ + x1, y, x_ + x2, y, Color_error,
+               pi_.pain.line(int(x_ + x1), y, int(x_ + x2), y, 
+                             Color_error,
                              Painter::line_onoffdash, thickness);
                pos = range.last + 1;
        }
@@ -257,7 +259,7 @@ void RowPainter::paintChangeBar() const
        if (start == end || !par_.isChanged(start, end))
                return;
 
-       int const height = text_metrics_.isLastRow(row_)
+       int const height = tm_.isLastRow(row_)
                ? row_.ascent()
                : row_.height();
 
@@ -277,7 +279,7 @@ void RowPainter::paintAppendix() const
                y += 2 * defaultRowHeight();
 
        pi_.pain.line(1, y, 1, yo_ + row_.height(), Color_appendix);
-       pi_.pain.line(width_ - 2, y, width_ - 2, yo_ + row_.height(), Color_appendix);
+       pi_.pain.line(tm_.width() - 2, y, tm_.width() - 2, yo_ + row_.height(), Color_appendix);
 }
 
 
@@ -289,7 +291,7 @@ void RowPainter::paintDepthBar() const
                return;
 
        depth_type prev_depth = 0;
-       if (!text_metrics_.isFirstRow(row_)) {
+       if (!tm_.isFirstRow(row_)) {
                pit_type pit2 = row_.pit();
                if (row_.pos() == 0)
                        --pit2;
@@ -297,7 +299,7 @@ void RowPainter::paintDepthBar() const
        }
 
        depth_type next_depth = 0;
-       if (!text_metrics_.isLastRow(row_)) {
+       if (!tm_.isLastRow(row_)) {
                pit_type pit2 = row_.pit();
                if (row_.endpos() >= pars_[pit2].size())
                        ++pit2;
@@ -337,13 +339,13 @@ void RowPainter::paintAppendixStart(int y) const
        docstring const label = _("Appendix");
        theFontMetrics(pb_font).rectText(label, w, a, d);
 
-       int const text_start = int(xo_ + (width_ - w) / 2);
+       int const text_start = int(xo_ + (tm_.width() - w) / 2);
        int const text_end = text_start + w;
 
        pi_.pain.rectText(text_start, y + d, label, pb_font, Color_none, Color_none);
 
        pi_.pain.line(int(xo_ + 1), y, text_start, y, Color_appendix);
-       pi_.pain.line(text_end, y, int(xo_ + width_ - 2), y, Color_appendix);
+       pi_.pain.line(text_end, y, int(xo_ + tm_.width() - 2), y, Color_appendix);
 }
 
 
@@ -387,18 +389,17 @@ void RowPainter::paintFirst() const
 
 void RowPainter::paintLabel() const
 {
-       docstring const str = par_.labelString();
+       docstring const str = par_.labelString();
        if (str.empty())
                return;
 
-       bool const is_rtl = text_.isRTL(par_);
        Layout const & layout = par_.layout();
        FontInfo const font = labelFont();
        FontMetrics const & fm = theFontMetrics(font);
        double x = x_;
 
-       if (is_rtl)
-               x = width_ - row_.right_margin + fm.width(layout.labelsep);
+       if (row_.isRTL())
+               x = tm_.width() - row_.right_margin + fm.width(layout.labelsep);
        else
                x = x_ - fm.width(layout.labelsep) - fm.width(str);
 
@@ -409,7 +410,6 @@ void RowPainter::paintLabel() const
 void RowPainter::paintTopLevelLabel() const
 {
        BufferParams const & bparams = pi_.base.bv->buffer().params();
-       bool const is_rtl = text_.isRTL(par_);
        ParagraphParameters const & pparams = par_.params();
        Layout const & layout = par_.layout();
        FontInfo const font = labelFont();
@@ -434,10 +434,10 @@ void RowPainter::paintTopLevelLabel() const
 
        double x = x_;
        if (layout.labeltype == LABEL_CENTERED) {
-               x = row_.left_margin + (width_ - row_.left_margin - row_.right_margin) / 2;
+               x = row_.left_margin + (tm_.width() - row_.left_margin - row_.right_margin) / 2;
                x -= fm.width(str) / 2;
-       } else if (is_rtl) {
-               x = width_ - row_.right_margin - fm.width(str);
+       } else if (row_.isRTL()) {
+               x = tm_.width() - row_.right_margin - fm.width(str);
        }
        pi_.pain.text(int(x), yo_ - maxdesc - labeladdon, str, font);
 }
@@ -477,7 +477,6 @@ static int getEndLabel(pit_type p, Text const & text)
 
 void RowPainter::paintLast() const
 {
-       bool const is_rtl = text_.isRTL(par_);
        int const endlabel = getEndLabel(row_.pit(), text_);
 
        // paint imaginary end-of-paragraph character
@@ -510,14 +509,17 @@ void RowPainter::paintLast() const
                FontMetrics const & fm = theFontMetrics(font);
                int const size = int(0.75 * fm.maxAscent());
                int const y = yo_ - size;
-               int const max_row_width = width_ - size - Inset::TEXT_TO_INSET_OFFSET;
-               int x = is_rtl ? nestMargin() + changebarMargin()
-                       : max_row_width - row_.right_margin;
 
                // If needed, move the box a bit to avoid overlapping with text.
-               int const rem = max_row_width - row_.width();
-               if (rem <= 0)
-                       x += is_rtl ? rem : - rem;
+               int x = 0;
+               if (row_.isRTL()) {
+                       int const normal_x = nestMargin() + changebarMargin();
+                       x = min(normal_x, row_.left_margin - size - Inset::TEXT_TO_INSET_OFFSET);
+               } else {
+                       int const normal_x = tm_.width() - row_.right_margin
+                               - size - Inset::TEXT_TO_INSET_OFFSET;
+                       x = max(normal_x, row_.width());
+               }
 
                if (endlabel == END_LABEL_BOX)
                        pi_.pain.rectangle(x, y, size, size, Color_eolmarker);
@@ -530,7 +532,7 @@ void RowPainter::paintLast() const
                FontInfo const font = labelFont();
                FontMetrics const & fm = theFontMetrics(font);
                docstring const & str = par_.layout().endlabelstring();
-               double const x = is_rtl ? x_ - fm.width(str) : x_;
+               double const x = row_.isRTL() ? x_ - fm.width(str) : x_;
                pi_.pain.text(int(x), yo_, str, font);
                break;
        }
@@ -548,14 +550,14 @@ void RowPainter::paintOnlyInsets()
        for ( ; cit != end ; ++cit) {
                Row::Element const & e = *cit;
                if (e.type == Row::INSET) {
-                       // If outer row has changed, nested insets are repainted completely.
-                       // FIXME: check what this really does. The test is weird.
-                       bool const nested_inset =
-                               (e.inset->asInsetMath() && !e.inset->asInsetMath()->asMacroTemplate())
-                               || e.inset->asInsetText() || e.inset->asInsetTabular();
-                       if (nested_inset)
-                               paintInset(e);
+                       paintInset(e);
+                       // The line that indicates word in a different language
+                       paintForeignMark(e);
+                       // change tracking (not for insets that handle it themselves)
+                       if (!e.inset->canPaintChange(*pi_.base.bv))
+                               paintChange(e);
                }
+
                x_ += e.full_width();
        }
 }
@@ -602,97 +604,54 @@ void RowPainter::paintSelection() const
 {
        if (!row_.selection())
                return;
-       Cursor const & curs = pi_.base.bv->cursor();
-       DocIterator beg = curs.selectionBegin();
-       beg.pit() = row_.pit();
-       beg.pos() = row_.sel_beg;
-
-       DocIterator end = curs.selectionEnd();
-       end.pit() = row_.pit();
-       end.pos() = row_.sel_end;
-
-       bool const begin_boundary = beg.pos() >= row_.endpos();
-       bool const end_boundary = row_.sel_end == row_.endpos();
-
-       DocIterator cur = beg;
-       cur.boundary(begin_boundary);
-       int x1 = text_metrics_.cursorX(beg.top(), begin_boundary);
-       int x2 = text_metrics_.cursorX(end.top(), end_boundary);
+
        int const y1 = yo_ - row_.ascent();
        int const y2 = y1 + row_.height();
 
-       int const rm = text_.isMainText() ? pi_.base.bv->rightMargin() : 0;
-       int const lm = text_.isMainText() ? pi_.base.bv->leftMargin() : 0;
-
        // draw the margins
-       if (row_.begin_margin_sel) {
-               if (text_.isRTL(beg.paragraph())) {
-                       pi_.pain.fillRectangle(int(xo_ + x1), y1,
-                               text_metrics_.width() - rm - x1, y2 - y1, Color_selection);
-               } else {
-                       pi_.pain.fillRectangle(int(xo_ + lm), y1, x1 - lm, y2 - y1,
-                               Color_selection);
-               }
-       }
-
-       if (row_.end_margin_sel) {
-               if (text_.isRTL(beg.paragraph())) {
-                       pi_.pain.fillRectangle(int(xo_ + lm), y1, x2 - lm, y2 - y1,
-                               Color_selection);
-               } else {
-                       pi_.pain.fillRectangle(int(xo_ + x2), y1, text_metrics_.width() - rm - x2,
-                               y2 - y1, Color_selection);
-               }
-       }
-
-       // if we are on a boundary from the beginning, it's probably
-       // a RTL boundary and we jump to the other side directly as this
-       // segement is 0-size and confuses the logic below
-       if (cur.boundary())
-               cur.boundary(false);
+       if (row_.isRTL() ? row_.end_margin_sel : row_.begin_margin_sel)
+               pi_.pain.fillRectangle(int(xo_), y1, row_.left_margin, y2 - y1,
+                                      Color_selection);
 
        // go through row and draw from RTL boundary to RTL boundary
-       while (cur < end) {
-               bool draw_now = false;
-
-               // simplified cursorForward code below which does not
-               // descend into insets and which does not go into the
-               // next line. Compare the logic with the original cursorForward
-
-               // if left of boundary -> just jump to right side, but
-               // for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
-               if (cur.boundary()) {
-                       cur.boundary(false);
-               }       else if (text_metrics_.isRTLBoundary(cur.pit(), cur.pos() + 1)) {
-                       // in front of RTL boundary -> Stay on this side of the boundary
-                       // because:  ab|cDDEEFFghi -> abc|DDEEFFghi
-                       ++cur.pos();
-                       cur.boundary(true);
-                       draw_now = true;
-               } else {
-                       // move right
-                       ++cur.pos();
-
-                       // line end?
-                       if (cur.pos() == row_.endpos())
-                               cur.boundary(true);
-               }
-
-               if (x1 == -1) {
-                       // the previous segment was just drawn, now the next starts
-                       x1 = text_metrics_.cursorX(cur.top(), cur.boundary());
+       double x = xo_ + row_.left_margin;
+       for (auto const & e : row_) {
+               // These are the same tests as in paintStringAndSel, except
+               // that all_sel has an additional clause that triggers for end
+               // of paragraph markers. The clause was not used in
+               // paintStringAndSel to avoid changing the drawing color.
+               // at least part of text selected?
+               bool const some_sel = (e.endpos >= row_.sel_beg && e.pos < row_.sel_end)
+                       || pi_.selected;
+               // all the text selected?
+               bool const all_sel = (e.pos >= row_.sel_beg && e.endpos < row_.sel_end)
+                   || (e.isVirtual() && e.pos == row_.endpos() && row_.end_margin_sel)
+                   || pi_.selected;
+
+               if (all_sel) {
+                       // the 3rd argument is written like that to avoid rounding issues
+                       pi_.pain.fillRectangle(int(x), y1,
+                                              int(x + e.full_width()) - int(x), y2 - y1,
+                                              Color_selection);
+               } else if (some_sel) {
+                       pos_type const from = min(max(row_.sel_beg, e.pos), e.endpos);
+                       pos_type const to = max(min(row_.sel_end, e.endpos), e.pos);
+                       double x1 = e.pos2x(from);
+                       double x2 = e.pos2x(to);
+                       if (x1 > x2)
+                               swap(x1, x2);
+                       // the 3rd argument is written like that to avoid rounding issues
+                       pi_.pain.fillRectangle(int(x + x1), y1, int(x2 + x) - int(x1 + x),
+                                              y2 - y1, Color_selection);
                }
+               x += e.full_width();
+       }
 
-               if (!(cur < end) || draw_now) {
-                       x2 = text_metrics_.cursorX(cur.top(), cur.boundary());
-                       pi_.pain.fillRectangle(int(xo_ + min(x1, x2)), y1, abs(x2 - x1),
-                               y2 - y1, Color_selection);
+       if (row_.isRTL() ? row_.begin_margin_sel : row_.end_margin_sel)
+               pi_.pain.fillRectangle(int(x), y1,
+                                      int(xo_ + tm_.width()) - int(x), y2 - y1,
+                                      Color_selection);
 
-                       // reset x1, so it is set again next round (which will be on the
-                       // right side of a boundary or at the selection end)
-                       x1 = -1;
-               }
-       }
 }