X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;ds=inline;f=src%2Fview.cpp;h=6a3dbdf9768ee3fc8971fd2d20e815492eedd2bd;hb=700f1449af19115ff2bbe50ad67ea7c73f9aa5cd;hp=3c6e2f510ff1e5790c83deda9e525ab0b9baec39;hpb=67fb91aae1fc5315f462d6b5818806f154e9e687;p=ipdf%2Fcode.git

diff --git a/src/view.cpp b/src/view.cpp
index 3c6e2f5..6a3dbdf 100644
--- a/src/view.cpp
+++ b/src/view.cpp
@@ -69,8 +69,6 @@ void View::Render()
 		debug_output_done = true;
 	}
 
-	glClearColor(1.f,1.f,1.f,1.f);
-	glClear(GL_COLOR_BUFFER_BIT);
 
 	//DrawGrid(); // Draw the gridlines
 
@@ -80,6 +78,11 @@ void View::Render()
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
 
+	if (m_colour.a < 1.0f)
+	{
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	}
 	glColor4f(m_colour.r, m_colour.g, m_colour.b, m_colour.a);
 	glBegin(GL_QUADS);
 	for (unsigned id = 0; id < m_document.ObjectCount(); ++id)
@@ -108,4 +111,9 @@ void View::Render()
 		glEnd();
 	}
 
+	if (m_colour.a < 1.0f)
+	{
+		glDisable(GL_BLEND);
+	}
+
 }