doc: compiling Debug Tools page code snippets.

doc/debug-tools.dox

@@ -59,21 +59,7 @@ given key doesn't exist, default fallback is used.
 Example usage: visualizing object position, rotation and scaling using
 @ref DebugTools::ObjectRenderer :
 
-@code{.cpp}
+@snippet MagnumDebugTools.cpp debug-tools-renderers
-// Global instance of debug resource manager, drawable group for the renderers
-DebugTools::ResourceManager manager;
-SceneGraph::DrawableGroup3D debugDrawables;
-
-// Create renderer options which will be referenced later by "my" resource key
-DebugTools::ResourceManager::instance().set("my",
-    DebugTools::ObjectRendererOptions().setSize(0.3f));
-
-// Create debug renderer for given object, use "my" options for it. The
-// renderer is automatically added to the object features and also to
-// specified drawable group.
-Object3D* object;
-new DebugTools::ObjectRenderer2D(*object, "my", debugDrawables);
-@endcode
 
 See @ref DebugTools::ObjectRenderer and @ref DebugTools::ShapeRenderer for more
 information.

doc/snippets/CMakeLists.txt

@@ -45,6 +45,13 @@ set_target_properties(snippets PROPERTIES FOLDER "Magnum/doc/snippets")
 
 find_package(Corrade COMPONENTS TestSuite)
 
+if(WITH_DEBUGTOOLS)
+    add_library(snippets-MagnumDebugTools STATIC
+        MagnumDebugTools.cpp)
+    target_link_libraries(snippets-MagnumDebugTools PRIVATE MagnumDebugTools)
+    set_target_properties(snippets-MagnumDebugTools PROPERTIES FOLDER "Magnum/doc/snippets")
+endif()
+
 # TODO: causes spurious linker errors on Travis iOS build, so I'm disabling it
 if(WITH_DEBUGTOOLS AND Corrade_TestSuite_FOUND AND NOT CORRADE_TARGET_IOS)
     set(SNIPPETS_DIR ${CMAKE_CURRENT_SOURCE_DIR})

doc/snippets/MagnumDebugTools.cpp

@@ -0,0 +1,52 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
+              Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include <Magnum/DebugTools/ResourceManager.h>
+#include <Magnum/DebugTools/ObjectRenderer.h>
+#include <Magnum/SceneGraph/Drawable.h>
+#include <Magnum/SceneGraph/Object.h>
+#include <Magnum/SceneGraph/MatrixTransformation3D.h>
+
+using namespace Magnum;
+
+int main() {
+{
+SceneGraph::Object<SceneGraph::MatrixTransformation3D>* object{};
+/* [debug-tools-renderers] */
+// Global instance of debug resource manager, drawable group for the renderers
+DebugTools::ResourceManager manager;
+SceneGraph::DrawableGroup3D debugDrawables;
+
+// Create renderer options which will be referenced later by "my" resource key
+DebugTools::ResourceManager::instance().set("my",
+    DebugTools::ObjectRendererOptions{}.setSize(0.3f));
+
+// Create debug renderer for given object, use "my" options for it. The
+// renderer is automatically added to the object features and also to
+// specified drawable group.
+new DebugTools::ObjectRenderer3D{*object, "my", &debugDrawables};
+/* [debug-tools-renderers] */
+}
+}