Code

Connector tool: make connectors avoid the convex hull of shapes.
[inkscape.git] / src / libnrtype / Layout-TNG-Output.cpp
old mode 100755 (executable)
new mode 100644 (file)
index bdcc6cf..2b4b80e
@@ -8,15 +8,33 @@
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
+#include <glib/gmem.h>
 #include "Layout-TNG.h"
 #include "display/nr-arena-glyphs.h"
 #include "style.h"
 #include "print.h"
 #include "extension/print.h"
 #include "livarot/Path.h"
+#include "libnr/nr-matrix-fns.h"
 #include "libnr/nr-scale-matrix-ops.h"
+#include "libnr/nr-convert2geom.h"
 #include "font-instance.h"
 #include "svg/svg-length.h"
+#include "extension/internal/cairo-render-context.h"
+#include "display/curve.h"
+#include <2geom/pathvector.h>
+
+namespace Inkscape {
+    namespace Extension {
+        namespace Internal {
+            class CairoRenderContext;
+            class CairoGlyphInfo;
+        }
+    }
+}
+
+using Inkscape::Extension::Internal::CairoRenderContext;
+using Inkscape::Extension::Internal::CairoGlyphInfo;
 
 namespace Inkscape {
 namespace Text {
@@ -41,7 +59,7 @@ void Layout::LineHeight::max(LineHeight const &other)
     if (other.leading > leading) leading = other.leading;
 }
 
-void Layout::_getGlyphTransformMatrix(int glyph_index, NRMatrix *matrix) const
+void Layout::_getGlyphTransformMatrix(int glyph_index, Geom::Matrix *matrix) const
 {
     Span const &span = _glyphs[glyph_index].span(this);
     double sin_rotation = sin(_glyphs[glyph_index].rotation);
@@ -72,9 +90,9 @@ void Layout::show(NRArenaGroup *in_arena, NRRect const *paintbox) const
         nr_arena_glyphs_group_set_style(nr_group, text_source->style);
         while (glyph_index < (int)_glyphs.size() && _characters[_glyphs[glyph_index].in_character].in_span == span_index) {
             if (_characters[_glyphs[glyph_index].in_character].in_glyph != -1) {
-                NRMatrix glyph_matrix;
+                Geom::Matrix glyph_matrix;
                 _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
-                nr_arena_glyphs_group_add_component(nr_group, _spans[span_index].font, _glyphs[glyph_index].glyph, &glyph_matrix);
+                nr_arena_glyphs_group_add_component(nr_group, _spans[span_index].font, _glyphs[glyph_index].glyph, glyph_matrix);
             }
             glyph_index++;
         }
@@ -83,7 +101,7 @@ void Layout::show(NRArenaGroup *in_arena, NRRect const *paintbox) const
     nr_arena_item_request_update(NR_ARENA_ITEM(in_arena), NR_ARENA_ITEM_STATE_ALL, FALSE);
 }
 
-void Layout::getBoundingBox(NRRect *bounding_box, NR::Matrix const &transform, int start, int length) const
+void Layout::getBoundingBox(NRRect *bounding_box, Geom::Matrix const &transform, int start, int length) const
 {
     for (unsigned glyph_index = 0 ; glyph_index < _glyphs.size() ; glyph_index++) {
         if (_characters[_glyphs[glyph_index].in_character].in_glyph == -1) continue;
@@ -94,33 +112,38 @@ void Layout::getBoundingBox(NRRect *bounding_box, NR::Matrix const &transform, i
             if ((int) _glyphs[glyph_index].in_character > start + length) continue;
         }
         // this could be faster
-        NRMatrix glyph_matrix;
+        Geom::Matrix glyph_matrix;
         _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
-        NR::Matrix total_transform = glyph_matrix;
+        Geom::Matrix total_transform = glyph_matrix;
         total_transform *= transform;
-        NR::Rect glyph_rect = _glyphs[glyph_index].span(this).font->BBox(_glyphs[glyph_index].glyph);
-        NR::Point bmi = glyph_rect.min(), bma = glyph_rect.max();
-        NR::Point tlp(bmi[0],bmi[1]), trp(bma[0],bmi[1]), blp(bmi[0],bma[1]), brp(bma[0],bma[1]);
-        tlp *= total_transform;
-        trp *= total_transform;
-        blp *= total_transform;
-        brp *= total_transform;
-        glyph_rect = NR::Rect(tlp,trp);
-        glyph_rect.expandTo(blp);
-        glyph_rect.expandTo(brp);
-        if ( (glyph_rect.min())[0] < bounding_box->x0 ) bounding_box->x0=(glyph_rect.min())[0];
-        if ( (glyph_rect.max())[0] > bounding_box->x1 ) bounding_box->x1=(glyph_rect.max())[0];
-        if ( (glyph_rect.min())[1] < bounding_box->y0 ) bounding_box->y0=(glyph_rect.min())[1];
-        if ( (glyph_rect.max())[1] > bounding_box->y1 ) bounding_box->y1=(glyph_rect.max())[1];
+        if(_glyphs[glyph_index].span(this).font) {
+           Geom::OptRect glyph_rect = _glyphs[glyph_index].span(this).font->BBox(_glyphs[glyph_index].glyph);
+            if (glyph_rect) {
+               Geom::Point bmi = glyph_rect->min(), bma = glyph_rect->max();
+               Geom::Point tlp(bmi[0],bmi[1]), trp(bma[0],bmi[1]), blp(bmi[0],bma[1]), brp(bma[0],bma[1]);
+                tlp *= total_transform;
+                trp *= total_transform;
+                blp *= total_transform;
+                brp *= total_transform;
+                *glyph_rect = Geom::Rect(tlp,trp);
+                glyph_rect->expandTo(blp);
+                glyph_rect->expandTo(brp);
+                if ( (glyph_rect->min())[0] < bounding_box->x0 ) bounding_box->x0=(glyph_rect->min())[0];
+                if ( (glyph_rect->max())[0] > bounding_box->x1 ) bounding_box->x1=(glyph_rect->max())[0];
+                if ( (glyph_rect->min())[1] < bounding_box->y0 ) bounding_box->y0=(glyph_rect->min())[1];
+                if ( (glyph_rect->max())[1] > bounding_box->y1 ) bounding_box->y1=(glyph_rect->max())[1];
+            }
+       }
     }
 }
 
 void Layout::print(SPPrintContext *ctx,
                    NRRect const *pbox, NRRect const *dbox, NRRect const *bbox,
-                   NRMatrix const &ctm) const
+                   Geom::Matrix const &ctm) const
 {
     if (_input_stream.empty()) return;
 
+    Geom::Matrix ctm_2geom(ctm);
     Direction block_progression = _blockProgression();
     bool text_to_path = ctx->module->textToPath();
     for (unsigned glyph_index = 0 ; glyph_index < _glyphs.size() ; ) {
@@ -131,33 +154,30 @@ void Layout::print(SPPrintContext *ctx,
                 glyph_index++;
             continue;
         }
-        NRMatrix glyph_matrix;
+        Geom::Matrix glyph_matrix;
         Span const &span = _spans[_characters[_glyphs[glyph_index].in_character].in_span];
         InputStreamTextSource const *text_source = static_cast<InputStreamTextSource const *>(_input_stream[span.in_input_stream_item]);
         if (text_to_path || _path_fitted) {
-            NRBPath bpath;
-            bpath.path = (NArtBpath*)span.font->ArtBPath(_glyphs[glyph_index].glyph);
-            if (bpath.path) {
-                NRBPath abp;
+            Geom::PathVector const * pv = span.font->PathVector(_glyphs[glyph_index].glyph);
+            if (pv) {
                 _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
-                abp.path = nr_artpath_affine(bpath.path, glyph_matrix);
-                if (text_source->style->fill.type != SP_PAINT_TYPE_NONE)
-                    sp_print_fill(ctx, &abp, &ctm, text_source->style, pbox, dbox, bbox);
-                if (text_source->style->stroke.type != SP_PAINT_TYPE_NONE)
-                    sp_print_stroke(ctx, &abp, &ctm, text_source->style, pbox, dbox, bbox);
-                nr_free(abp.path);
+                Geom::PathVector temp_pv = (*pv) * glyph_matrix;
+                if (!text_source->style->fill.isNone())
+                    sp_print_fill(ctx, temp_pv, &ctm_2geom, text_source->style, pbox, dbox, bbox);
+                if (!text_source->style->stroke.isNone())
+                    sp_print_stroke(ctx, temp_pv, &ctm_2geom, text_source->style, pbox, dbox, bbox);
             }
             glyph_index++;
         } else {
-            NR::Point g_pos(0,0);    // all strings are output at (0,0) because we do the translation using the matrix
-            glyph_matrix = NR::Matrix(NR::scale(1.0, -1.0) * NR::Matrix(NR::rotate(_glyphs[glyph_index].rotation)));
+            Geom::Point g_pos(0,0);    // all strings are output at (0,0) because we do the translation using the matrix
+            glyph_matrix = Geom::Scale(1.0, -1.0) * (Geom::Matrix)Geom::Rotate(_glyphs[glyph_index].rotation);
             if (block_progression == LEFT_TO_RIGHT || block_progression == RIGHT_TO_LEFT) {
-                glyph_matrix.c[4] = span.line(this).baseline_y + span.baseline_shift;
+                glyph_matrix[4] = span.line(this).baseline_y + span.baseline_shift;
                 // since we're outputting character codes, not glyphs, we want the character x
-                glyph_matrix.c[5] = span.chunk(this).left_x + span.x_start + _characters[_glyphs[glyph_index].in_character].x;
+                glyph_matrix[5] = span.chunk(this).left_x + span.x_start + _characters[_glyphs[glyph_index].in_character].x;
             } else {
-                glyph_matrix.c[4] = span.chunk(this).left_x + span.x_start + _characters[_glyphs[glyph_index].in_character].x;
-                glyph_matrix.c[5] = span.line(this).baseline_y + span.baseline_shift;
+                glyph_matrix[4] = span.chunk(this).left_x + span.x_start + _characters[_glyphs[glyph_index].in_character].x;
+                glyph_matrix[5] = span.line(this).baseline_y + span.baseline_shift;
             }
             Glib::ustring::const_iterator span_iter = span.input_stream_first_character;
             unsigned char_index = _glyphs[glyph_index].in_character;
@@ -191,6 +211,103 @@ void Layout::print(SPPrintContext *ctx,
     }
 }
 
+#ifdef HAVE_CAIRO_PDF
+void Layout::showGlyphs(CairoRenderContext *ctx) const
+{
+    if (_input_stream.empty()) return;
+
+    bool clip_mode = false;//(ctx->getRenderMode() == CairoRenderContext::RENDER_MODE_CLIP);
+    std::vector<CairoGlyphInfo> glyphtext;
+
+    for (unsigned glyph_index = 0 ; glyph_index < _glyphs.size() ; ) {
+        if (_characters[_glyphs[glyph_index].in_character].in_glyph == -1) {
+            // invisible glyphs
+            unsigned same_character = _glyphs[glyph_index].in_character;
+            while (_glyphs[glyph_index].in_character == same_character)
+                glyph_index++;
+            continue;
+        }
+        Span const &span = _spans[_characters[_glyphs[glyph_index].in_character].in_span];
+        InputStreamTextSource const *text_source = static_cast<InputStreamTextSource const *>(_input_stream[span.in_input_stream_item]);
+
+        Geom::Matrix glyph_matrix;
+        _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
+        if (clip_mode) {
+            Geom::PathVector const *pathv = span.font->PathVector(_glyphs[glyph_index].glyph);
+            if (pathv) {
+                Geom::PathVector pathv_trans = (*pathv) * glyph_matrix;
+                SPStyle const *style = text_source->style;
+                ctx->renderPathVector(pathv_trans, style, NULL);
+            }
+            glyph_index++;
+            continue;
+        }
+
+        Geom::Matrix font_matrix = glyph_matrix;
+        font_matrix[4] = 0;
+        font_matrix[5] = 0;
+
+        Glib::ustring::const_iterator span_iter = span.input_stream_first_character;
+        unsigned char_index = _glyphs[glyph_index].in_character;
+        unsigned original_span = _characters[char_index].in_span;
+        while (char_index && _characters[char_index - 1].in_span == original_span) {
+            char_index--;
+            span_iter++;
+        }
+
+        // try to output as many characters as possible in one go
+        Glib::ustring span_string;
+        unsigned this_span_index = _characters[_glyphs[glyph_index].in_character].in_span;
+        unsigned int first_index = glyph_index;
+        glyphtext.clear();
+        do {
+            span_string += *span_iter;
+            span_iter++;
+
+            unsigned same_character = _glyphs[glyph_index].in_character;
+            while (glyph_index < _glyphs.size() && _glyphs[glyph_index].in_character == same_character) {
+                if (glyph_index != first_index)
+                    _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
+
+                CairoGlyphInfo info;
+                info.index = _glyphs[glyph_index].glyph;
+                // this is the translation for x,y-offset
+                info.x = glyph_matrix[4];
+                info.y = glyph_matrix[5];
+
+                glyphtext.push_back(info);
+
+                glyph_index++;
+            }
+        } while (glyph_index < _glyphs.size()
+                 && _path_fitted == NULL
+                 && NR::transform_equalp(font_matrix, glyph_matrix, NR_EPSILON)
+                 && _characters[_glyphs[glyph_index].in_character].in_span == this_span_index);
+
+        // remove vertical flip
+        Geom::Matrix flip_matrix;
+        flip_matrix.setIdentity();
+        flip_matrix[3] = -1.0;
+        font_matrix = flip_matrix * font_matrix;
+
+        SPStyle const *style = text_source->style;
+        float opacity = SP_SCALE24_TO_FLOAT(style->opacity.value);
+
+        if (opacity != 1.0) {
+            ctx->pushState();
+            ctx->setStateForStyle(style);
+            ctx->pushLayer();
+        }
+        if (glyph_index - first_index > 0)
+            ctx->renderGlyphtext(span.font->pFont, &font_matrix, glyphtext, style);
+        if (opacity != 1.0) {
+            ctx->popLayer();
+            ctx->popState();
+        }
+    }
+}
+#endif
+
 // these functions are for dumpAsText() only. No need to translate
 static char const *direction_to_text(Layout::Direction d)
 {
@@ -309,11 +426,11 @@ void Layout::fitToPathAlign(SVGLength const &startOffset, Path const &path)
         int unused = 0;
         Path::cut_position *point_otp = const_cast<Path&>(path).CurvilignToPosition(1, &offset, unused);
         if (offset >= 0.0 && point_otp != NULL && point_otp[0].piece >= 0) {
-            NR::Point point;
-            NR::Point tangent;
+            Geom::Point point;
+            Geom::Point tangent;
             const_cast<Path&>(path).PointAndTangentAt(point_otp[0].piece, point_otp[0].t, point, tangent);
             _empty_cursor_shape.position = point;
-            _empty_cursor_shape.rotation = atan2(tangent[NR::Y], tangent[NR::X]);
+            _empty_cursor_shape.rotation = atan2(tangent[Geom::Y], tangent[Geom::X]);
         }
     }
 
@@ -323,9 +440,10 @@ void Layout::fitToPathAlign(SVGLength const &startOffset, Path const &path)
         double character_advance;
         Span const &span = _characters[char_index].span(this);
 
-        for (next_cluster_char_index = char_index + 1 ;
-             next_cluster_char_index < _characters.size() && !_characters[next_cluster_char_index].char_attributes.is_cursor_position;
-             next_cluster_char_index++);
+        for (next_cluster_char_index = char_index + 1 ; next_cluster_char_index < _characters.size() ; next_cluster_char_index++) {
+            if (_characters[next_cluster_char_index].in_glyph != -1 && _characters[next_cluster_char_index].char_attributes.is_cursor_position)
+                break;
+        }
 
         if (next_cluster_char_index == _characters.size()) {
             next_cluster_glyph_index = _glyphs.size();
@@ -349,9 +467,8 @@ void Layout::fitToPathAlign(SVGLength const &startOffset, Path const &path)
         // as far as I know these functions are const, they're just not marked as such
         Path::cut_position *midpoint_otp = const_cast<Path&>(path).CurvilignToPosition(1, &midpoint_offset, unused);
         if (midpoint_offset >= 0.0 && midpoint_otp != NULL && midpoint_otp[0].piece >= 0) {
-            NR::Point midpoint;
-            NR::Point tangent;
-
+            Geom::Point midpoint;
+            Geom::Point tangent;
             const_cast<Path&>(path).PointAndTangentAt(midpoint_otp[0].piece, midpoint_otp[0].t, midpoint, tangent);
 
             if (start_offset >= 0.0 && end_offset >= 0.0) {
@@ -370,14 +487,14 @@ void Layout::fitToPathAlign(SVGLength const &startOffset, Path const &path)
                         }
                         if (on_same_subpath) {
                             // both points were on the same subpath (without this test the angle is very weird)
-                            NR::Point startpoint, endpoint;
+                            Geom::Point startpoint, endpoint;
                             const_cast<Path&>(path).PointAt(start_otp[0].piece, start_otp[0].t, startpoint);
                             const_cast<Path&>(path).PointAt(end_otp[0].piece, end_otp[0].t, endpoint);
                             if (endpoint != startpoint) {
                                 tangent = endpoint - startpoint;
                                 tangent.normalize();
                             } else {
-                                tangent = NR::Point (0,0);
+                                tangent = Geom::Point (0,0);
                             }
                         }
                         g_free(end_otp);
@@ -417,15 +534,14 @@ SPCurve *Layout::convertToCurves(iterator const &from_glyph, iterator const &to_
     GSList *cc = NULL;
 
     for (int glyph_index = from_glyph._glyph_index ; glyph_index < to_glyph._glyph_index ; glyph_index++) {
-        NRMatrix glyph_matrix;
+        Geom::Matrix glyph_matrix;
         Span const &span = _glyphs[glyph_index].span(this);
         _getGlyphTransformMatrix(glyph_index, &glyph_matrix);
 
-        NRBPath bpath;
-        bpath.path = (NArtBpath*)span.font->ArtBPath(_glyphs[glyph_index].glyph);
-        if (bpath.path) {
-            NArtBpath *abp = nr_artpath_affine(bpath.path, glyph_matrix);
-            SPCurve *c = sp_curve_new_from_bpath(abp);
+        Geom::PathVector const * pathv = span.font->PathVector(_glyphs[glyph_index].glyph);
+        if (pathv) {
+            Geom::PathVector pathv_trans = (*pathv) * glyph_matrix;
+            SPCurve *c = new SPCurve(pathv_trans);
             if (c) cc = g_slist_prepend(cc, c);
         }
     }
@@ -433,26 +549,26 @@ SPCurve *Layout::convertToCurves(iterator const &from_glyph, iterator const &to_
 
     SPCurve *curve;
     if ( cc ) {
-        curve = sp_curve_concat(cc);
+        curve = SPCurve::concat(cc);
     } else {
-        curve = sp_curve_new();
+        curve = new SPCurve();
     }
 
     while (cc) {
         /* fixme: This is dangerous, as we are mixing art_alloc and g_new */
-        sp_curve_unref((SPCurve *) cc->data);
+        reinterpret_cast<SPCurve *>(cc->data)->unref();
         cc = g_slist_remove(cc, cc->data);
     }
 
     return curve;
 }
 
-void Layout::transform(NR::Matrix const &transform)
+void Layout::transform(Geom::Matrix const &transform)
 {
     // this is all massively oversimplified
     // I can't actually think of anybody who'll want to use it at the moment, so it'll stay simple
     for (unsigned glyph_index = 0 ; glyph_index < _glyphs.size() ; glyph_index++) {
-        NR::Point point(_glyphs[glyph_index].x, _glyphs[glyph_index].y);
+        Geom::Point point(_glyphs[glyph_index].x, _glyphs[glyph_index].y);
         point *= transform;
         _glyphs[glyph_index].x = point[0];
         _glyphs[glyph_index].y = point[1];