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-rw-r--r--core/fxcrt/fx_coordinates.cpp11
-rw-r--r--core/fxcrt/fx_coordinates.h1
2 files changed, 12 insertions, 0 deletions
diff --git a/core/fxcrt/fx_coordinates.cpp b/core/fxcrt/fx_coordinates.cpp
index 0b6aed44cc..752591d3ed 100644
--- a/core/fxcrt/fx_coordinates.cpp
+++ b/core/fxcrt/fx_coordinates.cpp
@@ -157,6 +157,17 @@ FX_RECT CFX_FloatRect::GetClosestRect() const {
return rect;
}
+CFX_FloatRect CFX_FloatRect::GetCenterSquare() const {
+ float fWidth = right - left;
+ float fHeight = top - bottom;
+ float fHalfWidth = (fWidth > fHeight) ? fHeight / 2 : fWidth / 2;
+
+ float fCenterX = (left + right) / 2.0f;
+ float fCenterY = (top + bottom) / 2.0f;
+ return CFX_FloatRect(fCenterX - fHalfWidth, fCenterY - fHalfWidth,
+ fCenterX + fHalfWidth, fCenterY + fHalfWidth);
+}
+
bool CFX_FloatRect::Contains(const CFX_PointF& point) const {
CFX_FloatRect n1(*this);
n1.Normalize();
diff --git a/core/fxcrt/fx_coordinates.h b/core/fxcrt/fx_coordinates.h
index 25923f7290..a1bf11b207 100644
--- a/core/fxcrt/fx_coordinates.h
+++ b/core/fxcrt/fx_coordinates.h
@@ -482,6 +482,7 @@ class CFX_FloatRect {
FX_RECT GetInnerRect() const;
FX_RECT GetOuterRect() const;
FX_RECT GetClosestRect() const;
+ CFX_FloatRect GetCenterSquare() const;
int Substract4(CFX_FloatRect& substract_rect, CFX_FloatRect* pRects);