allow scale rects, regions

3 files changed, 17 insertions, 0 deletions

diff --git a/lib/gdi/erect.h b/lib/gdi/erect.h
index d95b8c0f..83981403 100644
--- a/lib/gdi/erect.h
+++ b/lib/gdi/erect.h
@@ -119,6 +119,14 @@ public:
 	static eRect emptyRect() { return eRect(0, 0, 0, 0); }
 	static eRect invalidRect() { return eRect(); }
 	
+	inline void scale(int x_n, int x_d, int y_n, int y_d) 
+	{
+		x1 *= x_n; x1 /= x_d; 
+		x2 *= x_n; x2 /= x_d; 
+		y1 *= y_n; y1 /= y_d; 
+		y2 *= y_n; y2 /= y_d; 
+	}
+	
 private:
 	int x1;
 	int y1;
diff --git a/lib/gdi/region.cpp b/lib/gdi/region.cpp
index bbad3aa0..1208c97e 100644
--- a/lib/gdi/region.cpp
+++ b/lib/gdi/region.cpp
@@ -426,3 +426,10 @@ void gRegion::moveBy(ePoint offset)
 		rects[i].moveBy(offset);
 }
 
+void gRegion::scale(int x_n, int x_d, int y_n, int y_d)
+{
+	int i;
+	for (i=0; i<rects.size(); ++i)
+		rects[i].scale(x_n, x_d, y_n, y_d);
+}
+
diff --git a/lib/gdi/region.h b/lib/gdi/region.h
index d7217dae..2052a5cb 100644
--- a/lib/gdi/region.h
+++ b/lib/gdi/region.h
@@ -94,6 +94,8 @@ public:
 	bool valid() const { return extends.valid(); }
 	
 	static gRegion invalidRegion() { return gRegion(eRect::invalidRect()); }
+	
+	void scale(int x_n, int x_d, int y_n, int y_d);
 };
 
 #endif