[core] implement stretchable icons for icon-text-fit

1 files changed, 24 insertions, 2 deletions

diff --git a/src/mbgl/text/shaping.hpp b/src/mbgl/text/shaping.hpp
index 0c238d36b0..5343d4c3b2 100644
--- a/src/mbgl/text/shaping.hpp
+++ b/src/mbgl/text/shaping.hpp
@@ -26,16 +26,37 @@ style::TextJustifyType getAnchorJustification(style::SymbolAnchorType anchor);
 class SymbolFeature;
 class BiDi;
 
+class Padding {
+public:
+    float left = 0;
+    float top = 0;
+    float right = 0;
+    float bottom = 0;
+
+    explicit operator bool() const { return left != 0 || top != 0 || right != 0 || bottom != 0; }
+
+    bool operator==(const Padding& rhs) const {
+        return left == rhs.left && top == rhs.top && right == rhs.right && bottom == rhs.bottom;
+    }
+};
+
 class PositionedIcon {
 private:
-    PositionedIcon(ImagePosition image_, float top_, float bottom_, float left_, float right_)
-        : _image(image_), _top(top_), _bottom(bottom_), _left(left_), _right(right_) {}
+    PositionedIcon(
+        ImagePosition image_, float top_, float bottom_, float left_, float right_, const Padding& collisionPadding_)
+        : _image(image_),
+          _top(top_),
+          _bottom(bottom_),
+          _left(left_),
+          _right(right_),
+          _collisionPadding(collisionPadding_) {}
 
     ImagePosition _image;
     float _top;
     float _bottom;
     float _left;
     float _right;
+    Padding _collisionPadding;
 
 public:
     static PositionedIcon shapeIcon(const ImagePosition&,
@@ -55,6 +76,7 @@ public:
     float bottom() const { return _bottom; }
     float left() const { return _left; }
     float right() const { return _right; }
+    const Padding& collisionPadding() const { return _collisionPadding; }
 };
 
 const Shaping getShaping(const TaggedString& string,