File 0001-Use-the-system-mypaint-brushes.patch of Package opentoonz

From b149eff126a44344cd36d44d3004ba2b38e89c2e Mon Sep 17 00:00:00 2001
From: Christophe Giboudeaux <christophe@krop.fr>
Date: Mon, 13 Apr 2020 18:42:56 +0200
Subject: [PATCH] Use the system mypaint brushes if available.

CMake will check at build time whether mypaint-brushes 1.3
is available and only install brushes not available in this release.
---
 toonz/sources/CMakeLists.txt                 | 16 ++++++++++++++++
 toonz/sources/toonz/CMakeLists.txt           |  2 ++
 toonz/sources/toonzlib/mypaintbrushstyle.cpp |  5 +++++
 3 files changed, 23 insertions(+)

diff --git a/toonz/sources/CMakeLists.txt b/toonz/sources/CMakeLists.txt
index 7cf3d7c5..21252259 100644
--- a/toonz/sources/CMakeLists.txt
+++ b/toonz/sources/CMakeLists.txt
@@ -480,6 +480,22 @@ elseif(BUILD_ENV_UNIXLIKE)
     # Can be 'libmypaint' or 'libmypaint-1.x'
     pkg_search_module(MYPAINT_LIB REQUIRED libmypaint libmypaint-1.3>=1.3)
     
+    # Get the system mypaint brushes location
+    pkg_check_modules(MYPAINT_BRUSHES mypaint-brushes-1.0>=1.3)
+
+    if(MYPAINT_BRUSHES_FOUND)
+        pkg_get_variable(MYPAINT_BRUSHES_DIR mypaint-brushes-1.0 brushesdir)
+        add_definitions(-DMYPAINT_BRUSHES_DIR="${MYPAINT_BRUSHES_DIR}")
+        # This regex is used in toonzlib/CMakeLists.txt and matches brushes
+        # installed by mypaint-brushes 1.3
+        set(SYSTEM_MYPAINT_EXCLUDE "mypaint brushes/classic|deevad|experimental|kaerhon_v1|ramon|tanda")
+        message("**************** System mypaint brushes:" ${MYPAINT_BRUSHES_DIR})
+    else()
+        # Set an arbitrary value so not everything gets excluded if the system
+        # brushes are not found at build time
+        set(SYSTEM_MYPAINT_EXCLUDE "_nothing_")
+    endif()
+
     if(PLATFORM EQUAL 64)
         find_library(TURBOJPEG_LIB turbojpeg)
         message("**************** turbojpeg lib:" ${TURBOJPEG_LIB})
diff --git a/toonz/sources/toonz/CMakeLists.txt b/toonz/sources/toonz/CMakeLists.txt
index 57407ca1..c1e456e3 100644
--- a/toonz/sources/toonz/CMakeLists.txt
+++ b/toonz/sources/toonz/CMakeLists.txt
@@ -721,6 +721,8 @@ exec \$OPENTOONZ_BASE/bin/OpenToonz \"\$@\"
         DIRECTORY
             ${CMAKE_SOURCE_DIR}/../../stuff
         DESTINATION share/opentoonz
+        # Only excluded when using system mypaint brushes
+        REGEX "${SYSTEM_MYPAINT_EXCLUDE}" EXCLUDE
     )
 
 endif()
diff --git a/toonz/sources/toonzlib/mypaintbrushstyle.cpp b/toonz/sources/toonzlib/mypaintbrushstyle.cpp
index eecc7126..8a8aac4c 100644
--- a/toonz/sources/toonzlib/mypaintbrushstyle.cpp
+++ b/toonz/sources/toonzlib/mypaintbrushstyle.cpp
@@ -82,6 +82,11 @@ TFilePathSet TMyPaintBrushStyle::getBrushesDirs() {
   for (QStringList::iterator i = genericLocations.begin();
        i != genericLocations.end(); ++i)
     paths.push_back(TFilePath(*i) + "mypaint" + "brushes");
+#ifdef MYPAINT_BRUSHES_DIR
+  // Use the system brushes if available
+  const QString systemMypaintBrushes(MYPAINT_BRUSHES_DIR);
+  paths.push_back(TFilePath(systemMypaintBrushes));
+#endif
   return paths;
 }
 
-- 
2.31.1