diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/viewer-pangocairo.c | 80 |
1 files changed, 69 insertions, 11 deletions
diff --git a/utils/viewer-pangocairo.c b/utils/viewer-pangocairo.c index 4b27c7e5..1bc9f025 100644 --- a/utils/viewer-pangocairo.c +++ b/utils/viewer-pangocairo.c @@ -149,16 +149,17 @@ pangocairo_view_destroy_surface (gpointer instance, } enum { - ANNOTATE_GRAVITY_ROOF = 1, - ANNOTATE_BLOCK_PROGRESSION = 2, - ANNOTATE_BASELINES = 4, - ANNOTATE_LAYOUT_EXTENTS = 8, - ANNOTATE_LINE_EXTENTS = 16, - ANNOTATE_RUN_EXTENTS = 32, - ANNOTATE_CLUSTER_EXTENTS = 64, - ANNOTATE_CHAR_EXTENTS = 128, - ANNOTATE_CARET_POSITIONS = 256, - ANNOTATE_LAST = 512, + ANNOTATE_GRAVITY_ROOF = 1, + ANNOTATE_BLOCK_PROGRESSION = 2, + ANNOTATE_BASELINES = 4, + ANNOTATE_LAYOUT_EXTENTS = 8, + ANNOTATE_LINE_EXTENTS = 16, + ANNOTATE_RUN_EXTENTS = 32, + ANNOTATE_CLUSTER_EXTENTS = 64, + ANNOTATE_CHAR_EXTENTS = 128, + ANNOTATE_GLYPH_EXTENTS = 256, + ANNOTATE_CARET_POSITIONS = 512, + ANNOTATE_LAST = 1024, }; static void @@ -407,6 +408,62 @@ render_callback (PangoLayout *layout, cairo_restore (cr); } + if (annotate & ANNOTATE_GLYPH_EXTENTS) + { + /* draw the glyph_extents in blue */ + cairo_save (cr); + cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.5); + + iter = pango_layout_get_iter (layout); + do + { + PangoLayoutRun *run; + PangoRectangle rect; + int x_pos, y_pos; + + run = pango_layout_iter_get_run (iter); + if (!run) + continue; + + pango_layout_iter_get_run_extents (iter, NULL, &rect); + + x_pos = rect.x; + y_pos = rect.y + pango_layout_iter_get_baseline (iter); + + for (int i = 0; i < run->glyphs->num_glyphs; i++) + { + PangoRectangle extents; + + pango_font_get_glyph_extents (run->item->analysis.font, + run->glyphs->glyphs[i].glyph, + &extents, NULL); + + rect.x = x_pos + run->glyphs->glyphs[i].geometry.x_offset + extents.x; + rect.y = y_pos + run->glyphs->glyphs[i].geometry.y_offset + extents.y; + rect.width = extents.width; + rect.height = extents.height; + + cairo_rectangle (cr, + (double)rect.x / PANGO_SCALE - lw / 2, + (double)rect.y / PANGO_SCALE - lw / 2, + (double)rect.width / PANGO_SCALE + lw, + (double)rect.height / PANGO_SCALE + lw); + cairo_stroke (cr); + + cairo_arc (cr, + (double) (x_pos + run->glyphs->glyphs[i].geometry.x_offset) / PANGO_SCALE, + (double) (y_pos + run->glyphs->glyphs[i].geometry.y_offset) / PANGO_SCALE, + 3.0, 0, 2*G_PI); + cairo_fill (cr); + + x_pos += run->glyphs->glyphs[i].geometry.width; + } + } + while (pango_layout_iter_next_run (iter)); + pango_layout_iter_free (iter); + cairo_restore (cr); + } + if (annotate & ANNOTATE_CARET_POSITIONS) { const PangoLogAttr *attrs; @@ -634,7 +691,8 @@ pangocairo_view_get_option_group (const PangoViewer *klass G_GNUC_UNUSED) "\t\t\t\t\t\t\t 32 - run extents\n" "\t\t\t\t\t\t\t 64 - cluster extents\n" "\t\t\t\t\t\t\t 128 - char extents\n" - "\t\t\t\t\t\t\t 256 - caret positions", + "\t\t\t\t\t\t\t 256 - glyph extents\n" + "\t\t\t\t\t\t\t 512 - caret positions", "FLAGS"}, {NULL} }; |