From ca8b621b4fec65c768b58c6581f61d65cd40cc30 Mon Sep 17 00:00:00 2001
From: Roman Donchenko <roman.donchenko@itseez.com>
Date: Wed, 10 Jul 2013 18:20:34 +0400
Subject: [PATCH] Refactored detecting several Apple-related technologies.

Now the HAVE_* macros are set using cvconfig.h. Previously most
of them already were there, but were always undefined. One,
HAVE_COCOA, I had to add.

This also makes the CMake code more consistent; now, WITH_* variables
are always checked in cmake/*, while HAVE_* variables are checked in
modules/highgui/CMakeLists.txt.
---
 cmake/OpenCVFindLibsGUI.cmake    |  9 +++++++
 cmake/OpenCVFindLibsGrfmt.cmake  |  7 +++++-
 cmake/OpenCVFindLibsVideo.cmake  | 10 ++++++++
 cmake/templates/cvconfig.h.cmake |  3 +++
 modules/highgui/CMakeLists.txt   | 43 +++++++++++++-------------------
 5 files changed, 45 insertions(+), 27 deletions(-)

diff --git a/cmake/OpenCVFindLibsGUI.cmake b/cmake/OpenCVFindLibsGUI.cmake
index d685d23feb..04c77d8ec5 100644
--- a/cmake/OpenCVFindLibsGUI.cmake
+++ b/cmake/OpenCVFindLibsGUI.cmake
@@ -65,3 +65,12 @@ if(WITH_OPENGL)
     endif()
   endif()
 endif(WITH_OPENGL)
+
+# --- Carbon & Cocoa ---
+if(APPLE)
+  if(WITH_CARBON)
+    set(HAVE_CARBON YES)
+  elif(NOT IOS)
+    set(HAVE_COCOA YES)
+  endif()
+endif()
diff --git a/cmake/OpenCVFindLibsGrfmt.cmake b/cmake/OpenCVFindLibsGrfmt.cmake
index 33e428b7c8..c8ebb3d8f2 100644
--- a/cmake/OpenCVFindLibsGrfmt.cmake
+++ b/cmake/OpenCVFindLibsGrfmt.cmake
@@ -161,4 +161,9 @@ endif()
 #cmake 2.8.2 bug - it fails to determine zlib version
 if(ZLIB_FOUND)
   ocv_parse_header2(ZLIB "${ZLIB_INCLUDE_DIR}/zlib.h" ZLIB_VERSION)
-endif()
\ No newline at end of file
+endif()
+
+# --- Apple ImageIO ---
+if(WITH_IMAGEIO)
+  set(HAVE_IMAGEIO YES)
+endif()
diff --git a/cmake/OpenCVFindLibsVideo.cmake b/cmake/OpenCVFindLibsVideo.cmake
index 0ca4828fe6..c9127189ef 100644
--- a/cmake/OpenCVFindLibsVideo.cmake
+++ b/cmake/OpenCVFindLibsVideo.cmake
@@ -228,3 +228,13 @@ if(WIN32)
     list(APPEND HIGHGUI_LIBRARIES winmm)
   endif()
 endif(WIN32)
+
+# --- Apple AV Foundation ---
+if(WITH_AVFOUNDATION)
+  set(HAVE_AVFOUNDATION YES)
+endif()
+
+# --- QuickTime ---
+if(WITH_QUICKTIME)
+  set(HAVE_QUICKTIME YES)
+endif()
diff --git a/cmake/templates/cvconfig.h.cmake b/cmake/templates/cvconfig.h.cmake
index a1b97e5d34..8aebbad60c 100644
--- a/cmake/templates/cvconfig.h.cmake
+++ b/cmake/templates/cvconfig.h.cmake
@@ -16,6 +16,9 @@
 /* Carbon windowing environment */
 #cmakedefine HAVE_CARBON
 
+/* Cocoa API */
+#cmakedefine HAVE_COCOA
+
 /* IEEE1394 capturing support */
 #cmakedefine HAVE_DC1394
 
diff --git a/modules/highgui/CMakeLists.txt b/modules/highgui/CMakeLists.txt
index 2b0a232099..c25108702d 100644
--- a/modules/highgui/CMakeLists.txt
+++ b/modules/highgui/CMakeLists.txt
@@ -108,16 +108,12 @@ elseif(HAVE_WIN32UI)
   list(APPEND highgui_srcs src/window_w32.cpp)
 elseif(HAVE_GTK)
   list(APPEND highgui_srcs src/window_gtk.cpp)
-elseif(APPLE)
-  if(WITH_CARBON)
-    add_definitions(-DHAVE_CARBON=1)
-    list(APPEND highgui_srcs src/window_carbon.cpp)
-    list(APPEND HIGHGUI_LIBRARIES "-framework Carbon" "-framework QuickTime")
-  elseif(NOT IOS)
-    add_definitions(-DHAVE_COCOA=1)
-    list(APPEND highgui_srcs src/window_cocoa.mm)
-    list(APPEND HIGHGUI_LIBRARIES "-framework Cocoa")
-  endif()
+elseif(HAVE_CARBON)
+  list(APPEND highgui_srcs src/window_carbon.cpp)
+  list(APPEND HIGHGUI_LIBRARIES "-framework Carbon" "-framework QuickTime")
+elseif(HAVE_COCOA)
+  list(APPEND highgui_srcs src/window_cocoa.mm)
+  list(APPEND HIGHGUI_LIBRARIES "-framework Cocoa")
 endif()
 
 if(WIN32 AND NOT ARM)
@@ -210,26 +206,21 @@ if(HAVE_GIGE_API)
   list(APPEND highgui_srcs src/cap_giganetix.cpp)
 endif(HAVE_GIGE_API)
 
-if(WITH_IMAGEIO)
-  add_definitions(-DHAVE_IMAGEIO=1)
-  if(IOS)
-    list(APPEND HIGHGUI_LIBRARIES "-framework ImageIO")
-  endif()
-endif(WITH_IMAGEIO)
+if(HAVE_IMAGEIO AND IOS)
+  list(APPEND HIGHGUI_LIBRARIES "-framework ImageIO")
+endif()
 
-if(WITH_AVFOUNDATION)
-  add_definitions(-DHAVE_AVFOUNDATION=1)
+if(HAVE_AVFOUNDATION)
   list(APPEND highgui_srcs src/cap_avfoundation.mm)
   list(APPEND HIGHGUI_LIBRARIES "-framework AVFoundation" "-framework QuartzCore")
+endif()
+
+if(HAVE_QUICKTIME)
+  list(APPEND highgui_srcs src/cap_qt.cpp)
+  list(APPEND HIGHGUI_LIBRARIES "-framework Carbon" "-framework QuickTime" "-framework CoreFoundation" "-framework QuartzCore")
 elseif(APPLE)
-  add_definitions(-DHAVE_QUICKTIME=1)
-  if(WITH_QUICKTIME)
-    list(APPEND highgui_srcs src/cap_qt.cpp)
-    list(APPEND HIGHGUI_LIBRARIES "-framework Carbon" "-framework QuickTime" "-framework CoreFoundation" "-framework QuartzCore")
-  else()
-    list(APPEND highgui_srcs src/cap_qtkit.mm)
-    list(APPEND HIGHGUI_LIBRARIES "-framework QTKit" "-framework QuartzCore" "-framework AppKit")
-  endif()
+  list(APPEND highgui_srcs src/cap_qtkit.mm)
+  list(APPEND HIGHGUI_LIBRARIES "-framework QTKit" "-framework QuartzCore" "-framework AppKit")
 endif()
 
 if(IOS)