diff options
Diffstat (limited to 'pango/pangocairo-render.c')
| -rw-r--r-- | pango/pangocairo-render.c | 75 |
1 files changed, 54 insertions, 21 deletions
diff --git a/pango/pangocairo-render.c b/pango/pangocairo-render.c index dec4077c..da145400 100644 --- a/pango/pangocairo-render.c +++ b/pango/pangocairo-render.c @@ -58,6 +58,48 @@ set_color (PangoCairoRenderer *crenderer, color->blue / 65535.); } +/* modifies cairo_set_line_width() without doing cairo_save/restore() */ +static void +_pango_cairo_renderer_draw_frame (PangoCairoRenderer *crenderer, + double x, + double y, + double width, + double height, + double line_width) +{ + if (crenderer->do_path) + { + cairo_t *cr = crenderer->cr; + double d2 = line_width * .5, d = line_width; + + /* we draw an outer box in one winding direction and an inner one in the + * opposite direction. This works for both cairo windings rules. + * + * what we really want is cairo_stroke_to_path(). + */ + + /* outer */ + cairo_move_to (cr, x - d2, y - d2); + cairo_rel_line_to (cr, width + d, 0); + cairo_rel_line_to (cr, 0, height + d); + cairo_rel_line_to (cr, - (width + d), 0); + cairo_close_path (cr); + + /* inner */ + cairo_move_to (cr, x + d2, y + d2); + cairo_rel_line_to (cr, 0, height - d); + cairo_rel_line_to (cr, width - d, 0); + cairo_rel_line_to (cr, 0, - (height - d)); + cairo_close_path (cr); + } + else + { + cairo_rectangle (crenderer->cr, x, y, width, height); + cairo_set_line_width (crenderer->cr, line_width); + cairo_stroke (crenderer->cr); + } +} + static void _pango_cairo_renderer_draw_box_glyph (PangoCairoRenderer *crenderer, PangoGlyphInfo *gi, @@ -69,17 +111,13 @@ _pango_cairo_renderer_draw_box_glyph (PangoCairoRenderer *crenderer, cairo_save (crenderer->cr); cairo_get_current_point (crenderer->cr, &temp_x, &temp_y); - cairo_rectangle (crenderer->cr, - cx + 1.5, - cy + 1.5 - PANGO_UNKNOWN_GLYPH_HEIGHT, - (double)gi->geometry.width / PANGO_SCALE - 3.0, - PANGO_UNKNOWN_GLYPH_HEIGHT - 3.0); - if (!crenderer->do_path) - { - cairo_set_line_width (crenderer->cr, 1.0); - cairo_stroke (crenderer->cr); - } + _pango_cairo_renderer_draw_frame (crenderer, + cx + 1.5, + cy + 1.5 - PANGO_UNKNOWN_GLYPH_HEIGHT, + (double)gi->geometry.width / PANGO_SCALE - 3.0, + PANGO_UNKNOWN_GLYPH_HEIGHT - 3.0, + 1.0); cairo_move_to (crenderer->cr, temp_x, temp_y); cairo_restore (crenderer->cr); @@ -118,17 +156,12 @@ _pango_cairo_renderer_draw_unknown_glyph (PangoCairoRenderer *crenderer, cols = (ch > 0xffff ? 6 : 4) / rows; g_snprintf (buf, sizeof(buf), (ch > 0xffff) ? "%06X" : "%04X", ch); - cairo_rectangle (crenderer->cr, - cx + hbi->pad_x * 1.5, - cy + hbi->box_descent - hbi->box_height + hbi->pad_y * 0.5, - (double)gi->geometry.width / PANGO_SCALE - 3 * hbi->pad_x, - (hbi->box_height - hbi->pad_y)); - - if (!crenderer->do_path) - { - cairo_set_line_width (crenderer->cr, hbi->line_width); - cairo_stroke (crenderer->cr); - } + _pango_cairo_renderer_draw_frame (crenderer, + cx + hbi->pad_x * 1.5, + cy + hbi->box_descent - hbi->box_height + hbi->pad_y * 0.5, + (double)gi->geometry.width / PANGO_SCALE - 3 * hbi->pad_x, + (hbi->box_height - hbi->pad_y), + hbi->line_width); x0 = cx + hbi->pad_x * 3.0; y0 = cy + hbi->box_descent - hbi->pad_y * 2; |