From 7e7dcedaf31ee35499875491c9f569c575d28435 Mon Sep 17 00:00:00 2001
From: fiaxh <git@lightrise.org>
Date: Mon, 14 Feb 2022 14:55:59 +0100
Subject: Port from GTK3 to GTK4

---
 cmake/FindGDK4.cmake | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 cmake/FindGDK4.cmake

(limited to 'cmake/FindGDK4.cmake')

diff --git a/cmake/FindGDK4.cmake b/cmake/FindGDK4.cmake
new file mode 100644
index 00000000..74ef583e
--- /dev/null
+++ b/cmake/FindGDK4.cmake
@@ -0,0 +1,38 @@
+include(PkgConfigWithFallback)
+find_pkg_config_with_fallback(GDK4
+    PKG_CONFIG_NAME gdk-4.0
+    LIB_NAMES gdk-4
+    INCLUDE_NAMES gdk/gdk.h
+    INCLUDE_DIR_SUFFIXES gtk-4.0 gtk-4.0/include gtk+-4.0 gtk+-4.0/include
+    DEPENDS Pango Cairo GDKPixbuf2
+)
+
+if(GDK4_FOUND AND NOT GDK4_VERSION)
+    find_file(GDK4_VERSION_HEADER "gdk/gdkversionmacros.h" HINTS ${GDK4_INCLUDE_DIRS})
+    mark_as_advanced(GDK4_VERSION_HEADER)
+
+    if(GDK4_VERSION_HEADER)
+        file(STRINGS "${GDK4_VERSION_HEADER}" GDK4_MAJOR_VERSION REGEX "^#define GDK_MAJOR_VERSION +\\(?([0-9]+)\\)?$")
+        string(REGEX REPLACE "^#define GDK_MAJOR_VERSION \\(?([0-9]+)\\)?$" "\\1" GDK4_MAJOR_VERSION "${GDK4_MAJOR_VERSION}")
+        file(STRINGS "${GDK4_VERSION_HEADER}" GDK4_MINOR_VERSION REGEX "^#define GDK_MINOR_VERSION +\\(?([0-9]+)\\)?$")
+        string(REGEX REPLACE "^#define GDK_MINOR_VERSION \\(?([0-9]+)\\)?$" "\\1" GDK4_MINOR_VERSION "${GDK4_MINOR_VERSION}")
+        file(STRINGS "${GDK4_VERSION_HEADER}" GDK4_MICRO_VERSION REGEX "^#define GDK_MICRO_VERSION +\\(?([0-9]+)\\)?$")
+        string(REGEX REPLACE "^#define GDK_MICRO_VERSION \\(?([0-9]+)\\)?$" "\\1" GDK4_MICRO_VERSION "${GDK4_MICRO_VERSION}")
+        set(GDK4_VERSION "${GDK4_MAJOR_VERSION}.${GDK4_MINOR_VERSION}.${GDK4_MICRO_VERSION}")
+        unset(GDK4_MAJOR_VERSION)
+        unset(GDK4_MINOR_VERSION)
+        unset(GDK4_MICRO_VERSION)
+    endif()
+endif()
+
+if (GDK4_FOUND)
+    find_file(GDK4_WITH_X11 "gdk/gdkx.h" HINTS ${GDK4_INCLUDE_DIRS})
+    if (GDK4_WITH_X11)
+        set(GDK4_WITH_X11 yes CACHE INTERNAL "Does GDK4 support X11")
+    endif (GDK4_WITH_X11)
+endif ()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GDK4
+    REQUIRED_VARS GDK4_LIBRARY
+    VERSION_VAR GDK4_VERSION)
\ No newline at end of file
-- 
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