]> git.lyx.org Git - lyx.git/blobdiff - src/rowpainter.C
fix compiler warnings about unused parameter
[lyx.git] / src / rowpainter.C
index 6d3707c398d30b1eed3f72e81a9c2e2b6b13cc47..2cb5b6311abefe4f6583f6b4b3edc2924fd5e762 100644 (file)
 #include "lyxrow.h"
 #include "metricsinfo.h"
 #include "paragraph.h"
+#include "ParagraphMetrics.h"
 #include "paragraph_funcs.h"
 #include "ParagraphParameters.h"
+#include "TextMetrics.h"
 #include "vspace.h"
 
 #include "frontends/FontMetrics.h"
@@ -48,7 +50,6 @@ using frontend::FontMetrics;
 
 using std::endl;
 using std::max;
-using std::min;
 using std::string;
 
 
@@ -74,6 +75,7 @@ public:
        void paintFirst();
        void paintLast();
        void paintText();
+       int maxWidth() { return max_width_; }
 
 private:
        void paintForeignMark(double orig_x, LyXFont const & font, int desc = 0);
@@ -99,6 +101,7 @@ private:
 
        /// LyXText for the row
        LyXText const & text_;
+       TextMetrics & text_metrics_;
        ParagraphList const & pars_;
 
        /// The row to paint
@@ -107,6 +110,8 @@ private:
        /// Row's paragraph
        pit_type const pit_;
        Paragraph const & par_;
+       ParagraphMetrics const & pm_;
+       int max_width_;
 
        /// is row erased? (change tracking)
        bool erased_;
@@ -124,12 +129,16 @@ private:
 
 RowPainter::RowPainter(PainterInfo & pi,
        LyXText const & text, pit_type pit, Row const & row, int x, int y)
-       : bv_(*pi.base.bv), pain_(pi.pain), text_(text), pars_(text.paragraphs()),
+       : bv_(*pi.base.bv), pain_(pi.pain), text_(text),
+         text_metrics_(pi.base.bv->textMetrics(&text)),
+         pars_(text.paragraphs()),
          row_(row), pit_(pit), par_(text.paragraphs()[pit]),
+         pm_(text_metrics_.parMetrics(pit)),
+         max_width_(bv_.workWidth()),
          erased_(pi.erased_),
-         xo_(x), yo_(y), width_(text_.width())
+         xo_(x), yo_(y), width_(text_metrics_.width())
 {
-       RowMetrics m = text_.computeRowMetrics(*bv_.buffer(), pit, row_);
+       RowMetrics m = text_metrics_.computeRowMetrics(pit_, row_);
        x_ = m.x + xo_;
 
        //lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
@@ -152,7 +161,7 @@ LyXFont const RowPainter::getLabelFont() const
 
 int RowPainter::leftMargin() const
 {
-       return text_.leftMargin(*bv_.buffer(), pit_, row_.pos());
+       return text_.leftMargin(*bv_.buffer(), max_width_, pit_, row_.pos());
 }
 
 
@@ -180,9 +189,11 @@ void RowPainter::paintInset(pos_type const pos, LyXFont const & font)
        InsetText const * const in = inset->asTextInset();
        // non-wide insets are painted completely. Recursive
        bool tmp = refreshInside;
-       if (!in || !in->Wide()) {
+       if (!in || !in->wide()) {
                refreshInside = true;
-               lyxerr[Debug::PAINTING] << endl << "Paint inset fully" << endl;
+               if (lyxerr.debugging(Debug::PAINTING)) { 
+                       lyxerr << endl << "Paint inset fully" << endl;
+               }
        }
        if (refreshInside)
                inset->drawSelection(pi, int(x_), yo_);
@@ -191,8 +202,9 @@ void RowPainter::paintInset(pos_type const pos, LyXFont const & font)
        x_ += inset->width();
 #ifdef DEBUG_METRICS
        Dimension dim;
-       BOOST_ASSERT(text_.maxwidth_ > 0);
-       int const w = text_.maxwidth_ - leftMargin() - text_.rightMargin(*bv_.buffer(), par_);
+       BOOST_ASSERT(max_witdh_ > 0);
+       int right_margin = text_metrics_.rightMargin(pm_);
+       int const w = max_witdh_ - leftMargin() - right_margin;
        MetricsInfo mi(&bv_, font, w);
        inset->metrics(mi, dim);
        if (inset->width() > dim.wid) 
@@ -619,7 +631,7 @@ void RowPainter::paintFirst()
                        if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
                                if (is_rtl)
                                        x = leftMargin();
-                               x += (width_ - text_.rightMargin(buffer, par_) - leftMargin()) / 2;
+                               x += (width_ - text_metrics_.rightMargin(pm_) - leftMargin()) / 2;
                                x -= fm.width(str) / 2;
                        } else if (is_rtl) {
                                x = width_ - leftMargin() -     fm.width(str);
@@ -635,7 +647,21 @@ void RowPainter::paintLast()
        bool const is_rtl = text_.isRTL(*bv_.buffer(), par_);
        int const endlabel = getEndLabel(pit_, text_.paragraphs());
 
+       // paint imaginary end-of-paragraph character
+
+       if (par_.isInserted(par_.size()) || par_.isDeleted(par_.size())) {
+               FontMetrics const & fm = theFontMetrics(bv_.buffer()->params().getFont());
+               int const length = fm.maxAscent() / 2;
+               LColor::color col = par_.isInserted(par_.size()) ? LColor::newtext : LColor::strikeout;
+               
+               pain_.line(int(x_) + 1, yo_ + 2, int(x_) + 1, yo_ + 2 - length, col,
+                          Painter::line_solid, Painter::line_thick);
+               pain_.line(int(x_) + 1 - length, yo_ + 2, int(x_) + 1, yo_ + 2, col,
+                          Painter::line_solid, Painter::line_thick);
+       }
+
        // draw an endlabel
+
        switch (endlabel) {
        case END_LABEL_BOX:
        case END_LABEL_FILLED_BOX: {
@@ -661,7 +687,7 @@ void RowPainter::paintLast()
                docstring const & str = par_.layout()->endlabelstring();
                double const x = is_rtl ?
                        x_ - fm.width(str)
-                       : - text_.rightMargin(*bv_.buffer(), par_) - row_.width();
+                       : - text_metrics_.rightMargin(pm_) - row_.width();
                pain_.text(int(x), yo_, str, font);
                break;
        }
@@ -797,20 +823,6 @@ void RowPainter::paintText()
 }
 
 
-size_type calculateRowSignature(Row const & row, Paragraph const & par,
-       int x, int y)
-{
-       boost::crc_32_type crc;
-       for (pos_type i = row.pos(); i < row.endpos(); ++i) {
-               char_type const b[] = { par.getChar(i) };
-               crc.process_bytes(b, 1);
-       }
-       char_type const b[] = { x, y, row.width() };
-       crc.process_bytes(b, 3);
-       return crc.checksum();
-}
-
-
 bool CursorOnRow(PainterInfo & pi, pit_type const pit,
        RowList::const_iterator rit, LyXText const & text)
 {
@@ -857,11 +869,12 @@ void paintPar
        pi.base.bv->coordCache().parPos()[&text][pit] = Point(x, y);
 
        Paragraph const & par = text.paragraphs()[pit];
-       if (par.rows().empty())
+       ParagraphMetrics const & pm = pi.base.bv->parMetrics(&text, pit);
+       if (pm.rows().empty())
                return;
 
-       RowList::const_iterator const rb = par.rows().begin();
-       RowList::const_iterator const re = par.rows().end();
+       RowList::const_iterator const rb = pm.rows().begin();
+       RowList::const_iterator const re = pm.rows().end();
 
        y -= rb->ascent();
        size_type rowno = 0;
@@ -872,12 +885,14 @@ void paintPar
                bool tmp = refreshInside;
 
                // Row signature; has row changed since last paint?
-               size_type const row_sig = calculateRowSignature(*rit, par, x, y);
-               bool row_has_changed = par.rowSignature()[rowno] != row_sig;
+               bool row_has_changed = pm.rowChangeStatus()[rowno];
 
                bool cursor_on_row = CursorOnRow(pi, pit, rit, text);
                bool in_inset_alone_on_row = innerCursorOnRow(pi, pit, rit,
                        text);
+               bool leftEdgeFixed = 
+                       (par.getAlign() == LYX_ALIGN_LEFT ||
+                        par.getAlign() == LYX_ALIGN_BLOCK);
 
                // If this is the only object on the row, we can make it wide
                //
@@ -890,7 +905,7 @@ void paintPar
                        if (in) {
                                InsetText * t = const_cast<InsetText *>(in->asTextInset());
                                if (t)
-                                       t->setWide(in_inset_alone_on_row);
+                                       t->setWide(in_inset_alone_on_row && leftEdgeFixed);
                        }
                }
 
@@ -898,9 +913,6 @@ void paintPar
                // from cache, or cursor is inside an inset _on this row_,
                // then paint the row
                if (repaintAll || row_has_changed || cursor_on_row) {
-                       // Add to row signature cache
-                       par.rowSignature()[rowno] = row_sig;
-                       
                        bool const inside = (y + rit->descent() >= 0
                                && y - rit->ascent() < ww);
                        // it is not needed to draw on screen if we are not inside.
@@ -909,9 +921,10 @@ void paintPar
                        // Clear background of this row
                        // (if paragraph background was not cleared)
                        if (!repaintAll &&
-                           (!in_inset_alone_on_row || row_has_changed)) {
+                           (!(in_inset_alone_on_row && leftEdgeFixed) 
+                               || row_has_changed)) {
                                pi.pain.fillRectangle(x, y - rit->ascent(),
-                                   text.maxwidth_, rit->height(),
+                                   rp.maxWidth(), rit->height(),
                                    text.backgroundColor());
                                // If outer row has changed, force nested
                                // insets to repaint completely
@@ -921,20 +934,22 @@ void paintPar
 
                        // Instrumentation for testing row cache (see also
                        // 12 lines lower):
-                       if (text.isMainText(*pi.base.bv->buffer()))
-                               lyxerr[Debug::PAINTING] << "#";
-                       else
-                               lyxerr[Debug::PAINTING] << "[" <<
-                                   repaintAll << row_has_changed <<
-                                   cursor_on_row << "]";
+                       if (lyxerr.debugging(Debug::PAINTING)) {
+                               if (text.isMainText(*pi.base.bv->buffer()))
+                                       lyxerr[Debug::PAINTING] << "#";
+                               else
+                                       lyxerr[Debug::PAINTING] << "[" <<
+                                               repaintAll << row_has_changed <<
+                                               cursor_on_row << "]";
+                       }
                        rp.paintAppendix();
                        rp.paintDepthBar();
                        rp.paintChangeBar();
                        if (rit == rb)
                                rp.paintFirst();
+                       rp.paintText();
                        if (rit + 1 == re)
                                rp.paintLast();
-                       rp.paintText();
                }
                y += rit->descent();
                // Restore, see above
@@ -943,7 +958,9 @@ void paintPar
        // Re-enable screen drawing for future use of the painter.
        pi.pain.setDrawingEnabled(true);
 
-       lyxerr[Debug::PAINTING] << "." << endl;
+       if (lyxerr.debugging(Debug::PAINTING)) {
+               lyxerr[Debug::PAINTING] << "." << endl;
+       }
 }
 
 } // namespace anon
@@ -960,7 +977,10 @@ void paintText(BufferView & bv,
        
        PainterInfo pi(const_cast<BufferView *>(&bv), pain);
        // Should the whole screen, including insets, be refreshed?
-       bool repaintAll = select || !vi.singlepar;
+       // FIXME: We should also distinguish DecorationUpdate to avoid text
+       // drawing if possible. This is not possible to do easily right now
+       // because of the single backing pixmap.
+       bool repaintAll = select || vi.update_strategy != SingleParUpdate;
 
        if (repaintAll) {
                // Clear background (if not delegated to rows)
@@ -975,36 +995,20 @@ void paintText(BufferView & bv,
        // draw contents
        for (pit_type pit = vi.p1; pit <= vi.p2; ++pit) {
                refreshInside = repaintAll;
-               Paragraph const & par = text.getPar(pit);
-               yy += par.ascent();
+               ParagraphMetrics const & pm = bv.parMetrics(&text, pit);
+               yy += pm.ascent();
                paintPar(pi, text, pit, 0, yy, repaintAll);
-               yy += par.descent();
-       }
-
-       // Cache one paragraph above and one below
-       // Note MV: this cannot be suppressed even for singlepar.
-       // Try viewing the User Guide Mobius figure
-
-       if (vi.p1 > 0) {
-               text.redoParagraph(bv, vi.p1 - 1);
-               bv.coordCache().parPos()[&text][vi.p1 - 1] =
-                       Point(0, vi.y1 - text.getPar(vi.p1 - 1).descent());
-       }
-
-       if (vi.p2 < pit_type(text.paragraphs().size()) - 1) {
-               text.redoParagraph(bv, vi.p2 + 1);
-               bv.coordCache().parPos()[&text][vi.p2 + 1] =
-                       Point(0, vi.y2 + text.getPar(vi.p2 + 1).ascent());
+               yy += pm.descent();
        }
 
        // and grey out above (should not happen later)
 //     lyxerr << "par ascent: " << text.getPar(vi.p1).ascent() << endl;
-       if (vi.y1 > 0 && !vi.singlepar)
+       if (vi.y1 > 0 && vi.update_strategy != SingleParUpdate)
                pain.fillRectangle(0, 0, bv.workWidth(), vi.y1, LColor::bottomarea);
 
        // and possibly grey out below
 //     lyxerr << "par descent: " << text.getPar(vi.p1).ascent() << endl;
-       if (vi.y2 < bv.workHeight() && !vi.singlepar)
+       if (vi.y2 < bv.workHeight() && vi.update_strategy != SingleParUpdate)
                pain.fillRectangle(0, vi.y2, bv.workWidth(), bv.workHeight() - vi.y2, LColor::bottomarea);
 }
 
@@ -1013,13 +1017,15 @@ void paintTextInset(LyXText const & text, PainterInfo & pi, int x, int y)
 {
 //     lyxerr << "  paintTextInset: y: " << y << endl;
 
-       y -= text.getPar(0).ascent();
-       // This flag can not be set from within same inset:
+       y -= pi.base.bv->parMetrics(&text, 0).ascent();
+       // This flag cannot be set from within same inset:
        bool repaintAll = refreshInside;
        for (int pit = 0; pit < int(text.paragraphs().size()); ++pit) {
-               y += text.getPar(pit).ascent();
+               ParagraphMetrics const & pmi 
+                       = pi.base.bv->parMetrics(&text, pit);
+               y += pmi.ascent();
                paintPar(pi, text, pit, x, y, repaintAll);
-               y += text.getPar(pit).descent();
+               y += pmi.descent();
        }
 }