From 250d23c712ec417261c7b705e1e2388945c94659 Mon Sep 17 00:00:00 2001
From: Lu Wang <coolwanglu@gmail.com>
Date: Sat, 6 Oct 2012 15:06:26 +0800
Subject: [PATCH] remove hypot

---
 src/HTMLRenderer/draw.cc  | 4 ++--
 src/HTMLRenderer/state.cc | 5 ++---
 src/include/util.h        | 1 +
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/HTMLRenderer/draw.cc b/src/HTMLRenderer/draw.cc
index a64dc2b..adbbfe4 100644
--- a/src/HTMLRenderer/draw.cc
+++ b/src/HTMLRenderer/draw.cc
@@ -104,7 +104,7 @@ static void get_shading_bbox(GfxState * state, GfxShading * shading,
  */
 static double get_angle(double dx, double dy)
 {
-    double r = hypot(dx, dy);
+    double r = _hypot(dx, dy);
 
     /*
      * acos always returns [0, pi]
@@ -358,7 +358,7 @@ void HTMLRenderer::css_draw_rectangle(double x, double y, double w, double h, co
 
         double i1 = (new_tm[0] + new_tm[2]) / sqrt2;
         double i2 = (new_tm[1] + new_tm[3]) / sqrt2;
-        scale = hypot(i1, i2);
+        scale = _hypot(i1, i2);
         if(_is_positive(scale))
         {
             for(int i = 0; i < 4; ++i)
diff --git a/src/HTMLRenderer/state.cc b/src/HTMLRenderer/state.cc
index fc94015..615cf36 100644
--- a/src/HTMLRenderer/state.cc
+++ b/src/HTMLRenderer/state.cc
@@ -17,13 +17,12 @@
 
 #include "HTMLRenderer.h"
 #include "namespace.h"
-
+#include "util.h"
 
 namespace pdf2htmlEX {
 
 using std::max;
 using std::abs;
-using std::hypot;
 
 void HTMLRenderer::updateAll(GfxState * state) 
 { 
@@ -148,7 +147,7 @@ void HTMLRenderer::check_state_change(GfxState * state)
         double new_draw_text_tm[6];
         memcpy(new_draw_text_tm, cur_text_tm, sizeof(new_draw_text_tm));
 
-        double new_draw_text_scale = 1.0/text_scale_factor2 * hypot(new_draw_text_tm[2], new_draw_text_tm[3]);
+        double new_draw_text_scale = 1.0/text_scale_factor2 * _hypot(new_draw_text_tm[2], new_draw_text_tm[3]);
 
         double new_draw_font_size = cur_font_size;
         if(_is_positive(new_draw_text_scale))
diff --git a/src/include/util.h b/src/include/util.h
index 5c1032b..ffae09e 100644
--- a/src/include/util.h
+++ b/src/include/util.h
@@ -46,6 +46,7 @@ static inline bool _tm_equal(const double * tm1, const double * tm2, int size =
             return false;
     return true;
 }
+static inline double _hypot(double x, double y) { return std::sqrt(x*x+y*y); }
 
 void _tm_transform(const double * tm, double & x, double & y, bool is_delta = false);
 void _tm_multiply(double * tm_left, const double * tm_right);