From b9b1c9d1458452f03672c31b60082c28eaccd1ce Mon Sep 17 00:00:00 2001
From: Bart Janssens <bart@bartjanssens.org>
Date: Fri, 7 Oct 2016 23:11:36 +0200
Subject: [PATCH] Update example and callbacks for GLVisualize master

Continuing on https://github.com/JuliaGL/GLVisualize.jl/issues/94
---
 example/glvisualize.jl       | 19 ++++++++-----------
 example/qml/glvisualize.qml  |  2 +-
 src/glvisualize_callbacks.jl | 12 +++++++-----
 3 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/example/glvisualize.jl b/example/glvisualize.jl
index 8ee9005..4fcecba 100644
--- a/example/glvisualize.jl
+++ b/example/glvisualize.jl
@@ -3,26 +3,23 @@ ENV["QSG_RENDER_LOOP"] = "basic"
 
 using QML
 using GLVisualize, GeometryTypes, GLAbstraction, Colors
-using Reactive
 
 # Cat example from GLVisualize
 mesh 	= loadasset("cat.obj")
-timesignal = Signal(0f0)
-rotation_angle  = const_lift(*, timesignal, 1f0*pi/180f0)
-start_rotation  = Signal(rotationmatrix_x(deg2rad(90f0)))
-rotation 		= map(rotationmatrix_y, rotation_angle)
-final_rotation 	= map(*, start_rotation, rotation)
 
 # Render function that takes a parameter t from a QML slider
-function render(t)
+function render_callback(degrees)
+  rotation_angle = Float32(degrees)*pi/180f0
+  rotation  = rotationmatrix_x(deg2rad(90f0)) * rotationmatrix_y(rotation_angle)
+
   global robj
   if(!isdefined(:robj))
-    robj = visualize(mesh, model=final_rotation)
+    robj = visualize(mesh, model=rotation)
+    _view(robj)
   end
 
-  push!(timesignal, Float32(t))
-
-  view(robj)
+  set_arg!(robj, :model, rotation)
+  #yield() # without this yield the rotation matrix is never updated
 end
 
 @qmlapp joinpath(dirname(@__FILE__), "qml", "glvisualize.qml")
diff --git a/example/qml/glvisualize.qml b/example/qml/glvisualize.qml
index 585d226..e170c3b 100644
--- a/example/qml/glvisualize.qml
+++ b/example/qml/glvisualize.qml
@@ -42,7 +42,7 @@ ApplicationWindow {
       id: jvp
       Layout.fillWidth: true
       Layout.fillHeight: true
-      renderFunction: "render"
+      renderFunction: "render_callback"
       renderArguments: [angle.value]
     }
   }
diff --git a/src/glvisualize_callbacks.jl b/src/glvisualize_callbacks.jl
index 54029a6..1d92405 100644
--- a/src/glvisualize_callbacks.jl
+++ b/src/glvisualize_callbacks.jl
@@ -22,6 +22,7 @@ type GLVisualizeState
   scroll::Signal{Vec{2, Float64}}
   hasfocus::Signal{Bool}
   entered_window::Signal{Bool}
+  mouseinside::Signal{Bool}
 
   screen::Screen
 
@@ -37,6 +38,7 @@ type GLVisualizeState
     Signal(Vec(0.,0.)),
     Signal(Vec(0.,0.)),
     Signal(false),
+    Signal(false),
     Signal(false)
   )
 end
@@ -98,7 +100,7 @@ function on_framebuffer_setup(state, handle, width, height)
     state.screen.glcontext = GLWindow.GLContext(window, fb)
   end
 
-  GLVisualize.set_root_screen(state.screen)
+  GLVisualize.add_screen(state.screen)
   GLWindow.add_complex_signals!(state.screen)
 end
 
@@ -115,8 +117,8 @@ end
 function qml_render(x::Screen, parent::Screen=x, context=x.area.value)
   colorbits = GL_DEPTH_BUFFER_BIT
   if alpha(x.color) > 0
-      glClearColor(red(x.color), green(x.color), blue(x.color), alpha(x.color))
-      colorbits = colorbits | GL_COLOR_BUFFER_BIT
+    glClearColor(red(x.color), green(x.color), blue(x.color), alpha(x.color))
+    colorbits = colorbits | GL_COLOR_BUFFER_BIT
   end
   glClear(colorbits)
 
@@ -129,6 +131,6 @@ end
 function render_glvisualize_scene(state)
   fb = GLWindow.framebuffer(state.screen)
   qml_render(state.screen)
-  GLWindow.push_selectionqueries!(state.screen)
-  GLWindow.render(fb.postprocess)
+  # GLWindow.push_selectionqueries!(state.screen)
+  #GLWindow.render(fb.postprocess)
 end