From ce4cc65486b9676cfecb7e771ff8af3db2b9d408 Mon Sep 17 00:00:00 2001
From: Chris Loer <chris.loer@gmail.com>
Date: Mon, 2 Oct 2017 11:10:01 -0700
Subject: Prepare for viewport-collision work: remove "straight" option for
 line-placed icons.

---
 src/mbgl/text/collision_feature.cpp | 14 ++------------
 src/mbgl/text/collision_feature.hpp | 11 +++--------
 2 files changed, 5 insertions(+), 20 deletions(-)

diff --git a/src/mbgl/text/collision_feature.cpp b/src/mbgl/text/collision_feature.cpp
index 3eb08da8d1..c6224d72af 100644
--- a/src/mbgl/text/collision_feature.cpp
+++ b/src/mbgl/text/collision_feature.cpp
@@ -12,8 +12,7 @@ CollisionFeature::CollisionFeature(const GeometryCoordinates& line,
                                    const float boxScale,
                                    const float padding,
                                    const style::SymbolPlacementType placement,
-                                   IndexedSubfeature indexedFeature_,
-                                   const AlignmentType alignment)
+                                   IndexedSubfeature indexedFeature_)
         : indexedFeature(std::move(indexedFeature_)) {
     if (top == 0 && bottom == 0 && left == 0 && right == 0) return;
 
@@ -31,16 +30,7 @@ CollisionFeature::CollisionFeature(const GeometryCoordinates& line,
         height = std::max(10.0f * boxScale, height);
 
         GeometryCoordinate anchorPoint = convertPoint<int16_t>(anchor.point);
-
-        if (alignment == AlignmentType::Straight) {
-            // used for icon labels that are aligned with the line, but don't curve along it
-            const GeometryCoordinate vector = convertPoint<int16_t>(util::unit(convertPoint<double>(line[anchor.segment + 1] - line[anchor.segment])) * length);
-            const GeometryCoordinates newLine({ anchorPoint - vector, anchorPoint + vector });
-            bboxifyLabel(newLine, anchorPoint, 0, length, height);
-        } else {
-            // used for text labels that curve along a line
-            bboxifyLabel(line, anchorPoint, anchor.segment, length, height);
-        }
+        bboxifyLabel(line, anchorPoint, anchor.segment, length, height);
     } else {
         boxes.emplace_back(anchor.point, Point<float>{ 0, 0 }, x1, y1, x2, y2, std::numeric_limits<float>::infinity());
     }
diff --git a/src/mbgl/text/collision_feature.hpp b/src/mbgl/text/collision_feature.hpp
index 3b6e461a26..91cd98ec6f 100644
--- a/src/mbgl/text/collision_feature.hpp
+++ b/src/mbgl/text/collision_feature.hpp
@@ -38,10 +38,6 @@ public:
 
 class CollisionFeature {
 public:
-    enum class AlignmentType : bool {
-        Straight = false,
-        Curved
-    };
 
     // for text
     CollisionFeature(const GeometryCoordinates& line,
@@ -51,7 +47,7 @@ public:
                      const float padding,
                      const style::SymbolPlacementType placement,
                      const IndexedSubfeature& indexedFeature_)
-        : CollisionFeature(line, anchor, shapedText.top, shapedText.bottom, shapedText.left, shapedText.right, boxScale, padding, placement, indexedFeature_, AlignmentType::Curved) {}
+        : CollisionFeature(line, anchor, shapedText.top, shapedText.bottom, shapedText.left, shapedText.right, boxScale, padding, placement, indexedFeature_) {}
 
     // for icons
     CollisionFeature(const GeometryCoordinates& line,
@@ -66,7 +62,7 @@ public:
                            (shapedIcon ? shapedIcon->bottom() : 0),
                            (shapedIcon ? shapedIcon->left() : 0),
                            (shapedIcon ? shapedIcon->right() : 0),
-                           boxScale, padding, placement, indexedFeature_, AlignmentType::Straight) {}
+                           boxScale, padding, placement, indexedFeature_) {}
 
     CollisionFeature(const GeometryCoordinates& line,
                      const Anchor&,
@@ -77,8 +73,7 @@ public:
                      const float boxScale,
                      const float padding,
                      const style::SymbolPlacementType,
-                     IndexedSubfeature,
-                     const AlignmentType);
+                     IndexedSubfeature);
 
     std::vector<CollisionBox> boxes;
     IndexedSubfeature indexedFeature;
-- 
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