Added comments with test names.

18 files changed, 129 insertions, 0 deletions

diff --git a/src/backend_cairo/clippath.rs b/src/backend_cairo/clippath.rs
index 0f14cd1..0f8a2c5 100644
--- a/src/backend_cairo/clippath.rs
+++ b/src/backend_cairo/clippath.rs
@@ -26,15 +26,22 @@ pub fn apply(
     layers: &mut CairoLayers,
     cr: &cairo::Context,
 ) {
+    // a-clip-path-001.svg
+    // e-clipPath-001.svg
+
     let clip_surface = try_opt!(layers.get(), ());
     let clip_surface = clip_surface.borrow_mut();
 
     let clip_cr = cairo::Context::new(&*clip_surface);
     clip_cr.set_source_rgba(0.0, 0.0, 0.0, 1.0);
     clip_cr.paint();
+    // e-clipPath-006.svg
+    // e-clipPath-007.svg
     clip_cr.set_matrix(cr.get_matrix());
+    // e-clipPath-008.svg
     clip_cr.transform(cp.transform.to_native());
 
+    // e-clipPath-005.svg
     if cp.units == usvg::Units::ObjectBoundingBox {
         let m = cairo::Matrix::from_bbox(bbox);
         clip_cr.transform(m);
@@ -43,6 +50,8 @@ pub fn apply(
     clip_cr.set_operator(cairo::Operator::Clear);
 
     let matrix = clip_cr.get_matrix();
+    // e-clipPath-015.svg
+    // e-clipPath-017.svg
     for node in node.children() {
         clip_cr.transform(node.transform().to_native());
 
@@ -51,6 +60,10 @@ pub fn apply(
                 path::draw(&node.tree(), p, opt, &clip_cr);
             }
             usvg::NodeKind::Text(ref text) => {
+                // e-clipPath-009.svg
+                // e-clipPath-010.svg
+                // e-clipPath-011.svg
+                // e-clipPath-012.svg
                 text::draw(&node.tree(), text, opt, &clip_cr);
             }
             _ => {}
diff --git a/src/backend_cairo/fill.rs b/src/backend_cairo/fill.rs
index 55eb5cb..96b7549 100644
--- a/src/backend_cairo/fill.rs
+++ b/src/backend_cairo/fill.rs
@@ -26,11 +26,17 @@ pub fn apply(
             match fill.paint {
                 usvg::Paint::Color(c) => {
                     // a-fill-opacity-001.svg
+                    // a-fill-opacity-002.svg
+                    // a-fill-opacity-006.svg
                     cr.set_source_color(&c, fill.opacity);
                 }
                 usvg::Paint::Link(ref id) => {
                     // a-fill-opacity-003.svg
                     // a-fill-opacity-004.svg
+                    // a-fill-031.svg
+                    // a-fill-032.svg
+                    // a-fill-033.svg
+
                     if let Some(node) = tree.defs_by_id(id) {
                         match *node.borrow() {
                             usvg::NodeKind::LinearGradient(ref lg) => {
@@ -50,6 +56,8 @@ pub fn apply(
 
             // a-fill-rule-001.svg
             // a-fill-rule-002.svg
+            // e-clipPath-013.svg
+            // e-clipPath-014.svg
             match fill.rule {
                 usvg::FillRule::NonZero => cr.set_fill_rule(cairo::FillRule::Winding),
                 usvg::FillRule::EvenOdd => cr.set_fill_rule(cairo::FillRule::EvenOdd),
diff --git a/src/backend_cairo/gradient.rs b/src/backend_cairo/gradient.rs
index 3e592ae..119b62d 100644
--- a/src/backend_cairo/gradient.rs
+++ b/src/backend_cairo/gradient.rs
@@ -58,6 +58,10 @@ fn prepare_base(
     matrix.invert();
     grad.set_matrix(matrix);
 
+    // a-fill-opacity-003.svg
+    // a-stop-color-001.svg
+    // a-stop-opacity-001.svg
+    // a-stroke-opacity-003.svg
     for stop in &g.stops {
         grad.add_color_stop_rgba(
             *stop.offset,
diff --git a/src/backend_cairo/mask.rs b/src/backend_cairo/mask.rs
index f211c88..147c771 100644
--- a/src/backend_cairo/mask.rs
+++ b/src/backend_cairo/mask.rs
@@ -23,6 +23,8 @@ pub fn apply(
     layers: &mut CairoLayers,
     cr: &cairo::Context,
 ) {
+    // a-mask-001.svg
+
     let mask_surface = try_opt!(layers.get(), ());
     let mut mask_surface = mask_surface.borrow_mut();
 
diff --git a/src/backend_cairo/mod.rs b/src/backend_cairo/mod.rs
index 51cafed..c2113b9 100644
--- a/src/backend_cairo/mod.rs
+++ b/src/backend_cairo/mod.rs
@@ -269,6 +269,10 @@ fn render_group(
     let mut g_bbox = Rect::new_bbox();
 
     for node in parent.children() {
+        // a-transform-001.svg
+        // a-transform-010.svg
+        // a-transform-016.svg
+        // e-line-009.svg
         cr.transform(node.transform().to_native());
 
         let bbox = render_node(&node, opt, layers, cr);
@@ -319,6 +323,8 @@ fn render_group_impl(
             }
         }
     } else {
+        // a-opacity-001.svg
+        // a-stroke-opacity-002.svg
         if let Some(opacity) = g.opacity {
             cr.paint_with_alpha(*opacity);
         } else {
diff --git a/src/backend_cairo/pattern.rs b/src/backend_cairo/pattern.rs
index cc99517..0e64c51 100644
--- a/src/backend_cairo/pattern.rs
+++ b/src/backend_cairo/pattern.rs
@@ -68,6 +68,8 @@ pub fn apply(
         // If `opacity` isn't `1` then we have to make image semitransparent.
         // The only way to do this is by making a new image and rendering
         // the pattern on it with transparency.
+        //
+        // a-stroke-opacity-004.svg
 
         let surface2 = try_create_surface!(img_size, ());
         let sub_cr2 = cairo::Context::new(&surface2);
diff --git a/src/backend_cairo/stroke.rs b/src/backend_cairo/stroke.rs
index 5b2eaaf..3aa1feb 100644
--- a/src/backend_cairo/stroke.rs
+++ b/src/backend_cairo/stroke.rs
@@ -25,12 +25,18 @@ pub fn apply(
         Some(ref stroke) => {
             match stroke.paint {
                 usvg::Paint::Color(c) => {
+                    // a-stroke-opacity-001.svg
+                    // a-stroke-opacity-002.svg
+                    // a-stroke-opacity-006.svg
                     cr.set_source_color(&c, stroke.opacity);
                 }
                 usvg::Paint::Link(ref id) => {
                     // a-stroke-002.svg
                     // a-stroke-003.svg
                     // a-stroke-004.svg
+                    // a-stroke-007.svg
+                    // a-stroke-008.svg
+                    // a-stroke-009.svg
                     if let Some(node) = tree.defs_by_id(id) {
                         match *node.borrow() {
                             usvg::NodeKind::LinearGradient(ref lg) => {
@@ -80,6 +86,7 @@ pub fn apply(
 
             // a-stroke-miterlimit-002.svg
             cr.set_miter_limit(stroke.miterlimit);
+            // a-stroke-width-002.svg
             cr.set_line_width(stroke.width);
         }
         None => {
diff --git a/src/backend_cairo/text.rs b/src/backend_cairo/text.rs
index 365e5be..1dc4835 100644
--- a/src/backend_cairo/text.rs
+++ b/src/backend_cairo/text.rs
@@ -136,6 +136,9 @@ fn draw_block(
     // Draw underline.
     //
     // Should be drawn before/under text.
+    //
+    // a-text-decoration-001.svg
+    // a-text-decoration-009.svg
     if let Some(ref style) = block.decoration.underline {
         line_rect.y = bbox.y + baseline_offset - fm.get_underline_position().scale();
         draw_line(tree, line_rect, &style.fill, &style.stroke, opt, cr);
@@ -144,6 +147,8 @@ fn draw_block(
     // Draw overline.
     //
     // Should be drawn before/under text.
+    //
+    // a-text-decoration-002.svg
     if let Some(ref style) = block.decoration.overline {
         line_rect.y = bbox.y + fm.get_underline_thickness().scale();
         draw_line(tree, line_rect, &style.fill, &style.stroke, opt, cr);
@@ -165,6 +170,8 @@ fn draw_block(
     // Draw line-through.
     //
     // Should be drawn after/over text.
+    //
+    // a-text-decoration-003.svg
     if let Some(ref style) = block.decoration.line_through {
         line_rect.y = bbox.y + baseline_offset - fm.get_strikethrough_position().scale();
         line_rect.height = fm.get_strikethrough_thickness().scale();
@@ -177,8 +184,20 @@ fn draw_block(
 fn init_font(dom_font: &usvg::Font, dpi: f64) -> pango::FontDescription {
     let mut font = pango::FontDescription::new();
 
+    // a-font-family-001.svg
+    // a-font-family-002.svg
+    // a-font-family-003.svg
+    // a-font-family-004.svg
+    // a-font-family-005.svg
+    // a-font-family-006.svg
+    // a-font-family-007.svg
+    // a-font-family-008.svg
+    // a-font-family-009.svg
+    // a-font-family-010.svg
     font.set_family(&dom_font.family);
 
+    // a-font-style-001.svg
+    // a-font-style-002.svg
     let font_style = match dom_font.style {
         usvg::FontStyle::Normal => pango::Style::Normal,
         usvg::FontStyle::Italic => pango::Style::Italic,
@@ -186,12 +205,14 @@ fn init_font(dom_font: &usvg::Font, dpi: f64) -> pango::FontDescription {
     };
     font.set_style(font_style);
 
+    // a-font-variant-001.svg
     let font_variant = match dom_font.variant {
         usvg::FontVariant::Normal => pango::Variant::Normal,
         usvg::FontVariant::SmallCaps => pango::Variant::SmallCaps,
     };
     font.set_variant(font_variant);
 
+    // a-font-weight-009.svg
     let font_weight = match dom_font.weight {
         usvg::FontWeight::W100       => pango::Weight::Thin,
         usvg::FontWeight::W200       => pango::Weight::Ultralight,
@@ -205,6 +226,7 @@ fn init_font(dom_font: &usvg::Font, dpi: f64) -> pango::FontDescription {
     };
     font.set_weight(font_weight);
 
+    // a-font-stretch-001.svg
     let font_stretch = match dom_font.stretch {
         usvg::FontStretch::Normal         => pango::Stretch::Normal,
         usvg::FontStretch::Narrower |
diff --git a/src/backend_qt/clippath.rs b/src/backend_qt/clippath.rs
index 62ff3ec..9dc5cb8 100644
--- a/src/backend_qt/clippath.rs
+++ b/src/backend_qt/clippath.rs
@@ -23,14 +23,21 @@ pub fn apply(
     layers: &mut QtLayers,
     p: &qt::Painter,
 ) {
+    // a-clip-path-001.svg
+    // e-clipPath-001.svg
+
     let clip_img = try_opt!(layers.get(), ());
     let mut clip_img = clip_img.borrow_mut();
     clip_img.fill(0, 0, 0, 255);
 
     let clip_p = qt::Painter::new(&clip_img);
+    // e-clipPath-006.svg
+    // e-clipPath-007.svg
     clip_p.set_transform(&p.get_transform());
+    // e-clipPath-008.svg
     clip_p.apply_transform(&cp.transform.to_native());
 
+    // e-clipPath-005.svg
     if cp.units == usvg::Units::ObjectBoundingBox {
         clip_p.apply_transform(&qt::Transform::from_bbox(bbox));
     }
@@ -38,6 +45,8 @@ pub fn apply(
     clip_p.set_composition_mode(qt::CompositionMode::CompositionMode_Clear);
 
     let ts = clip_p.get_transform();
+    // e-clipPath-015.svg
+    // e-clipPath-017.svg
     for node in node.children() {
         clip_p.apply_transform(&node.transform().to_native());
 
diff --git a/src/backend_qt/fill.rs b/src/backend_qt/fill.rs
index a643854..35ff887 100644
--- a/src/backend_qt/fill.rs
+++ b/src/backend_qt/fill.rs
@@ -29,6 +29,8 @@ pub fn apply(
             match fill.paint {
                 usvg::Paint::Color(c) => {
                     // a-fill-opacity-001.svg
+                    // a-fill-opacity-002.svg
+                    // a-fill-opacity-006.svg
                     let a = f64_bound(0.0, *opacity * 255.0, 255.0) as u8;
                     brush.set_color(c.red, c.green, c.blue, a);
                 }
diff --git a/src/backend_qt/gradient.rs b/src/backend_qt/gradient.rs
index 2726d6f..c3c9758 100644
--- a/src/backend_qt/gradient.rs
+++ b/src/backend_qt/gradient.rs
@@ -48,6 +48,10 @@ fn prepare_base(
     };
     grad.set_spread(spread_method);
 
+    // a-fill-opacity-003.svg
+    // a-stop-color-001.svg
+    // a-stop-opacity-001.svg
+    // a-stroke-opacity-003.svg
     for stop in &g.stops {
         grad.set_color_at(
             *stop.offset,
diff --git a/src/backend_qt/mask.rs b/src/backend_qt/mask.rs
index e486f13..1d85579 100644
--- a/src/backend_qt/mask.rs
+++ b/src/backend_qt/mask.rs
@@ -20,6 +20,8 @@ pub fn apply(
     sub_p: &qt::Painter,
     p: &qt::Painter,
 ) {
+    // a-mask-001.svg
+
     let mask_img = try_opt!(layers.get(), ());
     let mut mask_img = mask_img.borrow_mut();
 
diff --git a/src/backend_qt/mod.rs b/src/backend_qt/mod.rs
index 247cbcf..236cc5d 100644
--- a/src/backend_qt/mod.rs
+++ b/src/backend_qt/mod.rs
@@ -245,6 +245,10 @@ fn render_group(
     let mut g_bbox = Rect::new_bbox();
 
     for node in parent.children() {
+        // a-transform-001.svg
+        // a-transform-010.svg
+        // a-transform-016.svg
+        // e-line-009.svg
         p.apply_transform(&node.transform().to_native());
 
         let bbox = render_node(&node, opt, layers, p);
@@ -292,6 +296,8 @@ fn render_group_impl(
 
     sub_p.end();
 
+    // a-opacity-001.svg
+    // a-stroke-opacity-002.svg
     if let Some(opacity) = g.opacity {
         p.set_opacity(*opacity);
     }
diff --git a/src/backend_qt/path.rs b/src/backend_qt/path.rs
index 05c54e9..1efee97 100644
--- a/src/backend_qt/path.rs
+++ b/src/backend_qt/path.rs
@@ -51,6 +51,10 @@ pub fn convert_path(
     //
     // 'A closed path has coinciding start and end points.'
     // https://doc.qt.io/qt-5/qpainterpath.html#details
+    //
+    // a-stroke-linecap-007.svg
+    // a-stroke-linecap-008.svg
+    // a-stroke-linecap-009.svg
 
     let mut prev_mx = 0.0;
     let mut prev_my = 0.0;
@@ -111,6 +115,8 @@ pub fn convert_path(
 
     // a-fill-rule-001.svg
     // a-fill-rule-002.svg
+    // e-clipPath-013.svg
+    // e-clipPath-014.svg
     match rule {
         usvg::FillRule::NonZero => p_path.set_fill_rule(qt::FillRule::WindingFill),
         usvg::FillRule::EvenOdd => p_path.set_fill_rule(qt::FillRule::OddEvenFill),
diff --git a/src/backend_qt/pattern.rs b/src/backend_qt/pattern.rs
index c637c0d..6eb40bf 100644
--- a/src/backend_qt/pattern.rs
+++ b/src/backend_qt/pattern.rs
@@ -62,6 +62,8 @@ pub fn apply(
         // If `opacity` isn't `1` then we have to make image semitransparent.
         // The only way to do this is by making a new image and rendering
         // the pattern on it with transparency.
+        //
+        // a-stroke-opacity-004.svg
 
         let mut img2 = try_create_image!(img_size, ());
         img2.fill(0, 0, 0, 0);
diff --git a/src/backend_qt/stroke.rs b/src/backend_qt/stroke.rs
index 636f443..692169d 100644
--- a/src/backend_qt/stroke.rs
+++ b/src/backend_qt/stroke.rs
@@ -28,6 +28,9 @@ pub fn apply(
 
             match stroke.paint {
                 usvg::Paint::Color(c) => {
+                    // a-stroke-opacity-001.svg
+                    // a-stroke-opacity-002.svg
+                    // a-stroke-opacity-006.svg
                     let a = f64_bound(0.0, *opacity * 255.0, 255.0) as u8;
                     pen.set_color(c.red, c.green, c.blue, a);
                 }
@@ -35,6 +38,9 @@ pub fn apply(
                     // a-stroke-002.svg
                     // a-stroke-003.svg
                     // a-stroke-004.svg
+                    // a-stroke-007.svg
+                    // a-stroke-008.svg
+                    // a-stroke-009.svg
                     let mut brush = qt::Brush::new();
 
                     if let Some(node) = tree.defs_by_id(id) {
@@ -79,6 +85,7 @@ pub fn apply(
 
             // a-stroke-miterlimit-002.svg
             pen.set_miter_limit(stroke.miterlimit);
+            // a-stroke-width-002.svg
             pen.set_width(stroke.width);
 
             // a-stroke-dasharray-001.svg
diff --git a/src/backend_qt/text.rs b/src/backend_qt/text.rs
index 53baecf..e0d3589 100644
--- a/src/backend_qt/text.rs
+++ b/src/backend_qt/text.rs
@@ -88,6 +88,9 @@ fn draw_block(
     // Draw underline.
     //
     // Should be drawn before/under text.
+    //
+    // a-text-decoration-001.svg
+    // a-text-decoration-009.svg
     if let Some(ref style) = block.decoration.underline {
         line_rect.y = bbox.y + font_metrics.height() - font_metrics.underline_pos();
         draw_line(tree, line_rect, &style.fill, &style.stroke, opt, p);
@@ -96,6 +99,8 @@ fn draw_block(
     // Draw overline.
     //
     // Should be drawn before/under text.
+    //
+    // a-text-decoration-002.svg
     if let Some(ref style) = block.decoration.overline {
         line_rect.y = bbox.y + font_metrics.height() - font_metrics.overline_pos();
         draw_line(tree, line_rect, &style.fill, &style.stroke, opt, p);
@@ -110,6 +115,8 @@ fn draw_block(
     // Draw line-through.
     //
     // Should be drawn after/over text.
+    //
+    // a-text-decoration-003.svg
     if let Some(ref style) = block.decoration.line_through {
         line_rect.y = bbox.y + font_metrics.ascent() - font_metrics.strikeout_pos();
         draw_line(tree, line_rect, &style.fill, &style.stroke, opt, p);
@@ -121,8 +128,20 @@ fn draw_block(
 fn init_font(dom_font: &usvg::Font) -> qt::Font {
     let mut font = qt::Font::new();
 
+    // a-font-family-001.svg
+    // a-font-family-002.svg
+    // a-font-family-003.svg
+    // a-font-family-004.svg
+    // a-font-family-005.svg
+    // a-font-family-006.svg
+    // a-font-family-007.svg
+    // a-font-family-008.svg
+    // a-font-family-009.svg
+    // a-font-family-010.svg
     font.set_family(&dom_font.family);
 
+    // a-font-style-001.svg
+    // a-font-style-002.svg
     let font_style = match dom_font.style {
         usvg::FontStyle::Normal => qt::FontStyle::StyleNormal,
         usvg::FontStyle::Italic => qt::FontStyle::StyleItalic,
@@ -130,10 +149,12 @@ fn init_font(dom_font: &usvg::Font) -> qt::Font {
     };
     font.set_style(font_style);
 
+    // a-font-variant-001.svg
     if dom_font.variant == usvg::FontVariant::SmallCaps {
         font.set_small_caps(true);
     }
 
+    // a-font-weight-009.svg
     let font_weight = match dom_font.weight {
         usvg::FontWeight::W100       => qt::FontWeight::Thin,
         usvg::FontWeight::W200       => qt::FontWeight::ExtraLight,
@@ -147,6 +168,7 @@ fn init_font(dom_font: &usvg::Font) -> qt::Font {
     };
     font.set_weight(font_weight);
 
+    // a-font-stretch-001.svg
     let font_stretch = match dom_font.stretch {
         usvg::FontStretch::Normal         => qt::FontStretch::Unstretched,
         usvg::FontStretch::Narrower |
diff --git a/src/backend_utils/text.rs b/src/backend_utils/text.rs
index fc17b35..0c01b35 100644
--- a/src/backend_utils/text.rs
+++ b/src/backend_utils/text.rs
@@ -143,6 +143,11 @@ fn prepare_blocks<Font>(
             chunk_w += blocks[i].bbox.width;
         }
 
+        // a-text-anchor-001.svg
+        // a-text-anchor-002.svg
+        // a-text-anchor-003.svg
+        // a-text-anchor-005.svg
+        // a-text-anchor-006.svg
         let adx = process_text_anchor(chunk.anchor, chunk_w);
         for i in start_idx..blocks.len() {
             blocks[i].bbox.x -= adx;