X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fview.cpp;h=969bbb366c5ffe18697d8fc04ae88eebd7299af5;hp=4425ebec40267b937fb79a89a38467ed3b058975;hb=e12f1118cca4997c895c5ece32900be74f59ecdd;hpb=37f826f1fd7b64ee1eb68e4036b43e306560828a;ds=sidebyside

diff --git a/src/view.cpp b/src/view.cpp
index 4425ebe..969bbb3 100644
--- a/src/view.cpp
+++ b/src/view.cpp
@@ -7,10 +7,34 @@ using namespace std;
 
 void View::Translate(Real x, Real y)
 {
+	x *= m_bounds.w;
+	y *= m_bounds.h;
 	m_bounds.x += x;
 	m_bounds.y += y;
 }
 
+void View::ScaleAroundPoint(Real x, Real y, Real scaleAmt)
+{
+	// Convert to local coords.
+	x *= m_bounds.w;
+	y *= m_bounds.h;
+	x += m_bounds.x;
+	y += m_bounds.y;
+	
+	Debug("Mouse wheel event %f %f %f\n", Float(x), Float(y), Float(scaleAmt));
+	
+	Real top = y - m_bounds.y;
+	Real left = x - m_bounds.x;
+	
+	top *= scaleAmt;
+	left *= scaleAmt;
+	
+	m_bounds.x = x - left;
+	m_bounds.y = y - top;
+	m_bounds.w *= scaleAmt;
+	m_bounds.h *= scaleAmt;
+}
+
 void View::Render()
 {
 	static bool debug_output_done = false;