GDExt example: add ImPlot

pkdawson · Jul 12, 2024 · 2e98523 · 2e98523
1 parent 79b0a84
commit 2e98523
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Showing 4 changed files with 38 additions and 8 deletions.
diff --git a/doc/examples/GDExt/CMakeLists.txt b/doc/examples/GDExt/CMakeLists.txt
@@ -21,19 +21,30 @@ FetchContent_Declare(
 )
 FetchContent_MakeAvailable(imgui)
 
+FetchContent_Declare(
+    implot
+    GIT_REPOSITORY https://github.com/epezent/implot
+    GIT_TAG master
+)
+FetchContent_MakeAvailable(implot)
+
 add_library(gdexample SHARED)
 target_compile_features(gdexample PRIVATE cxx_std_20)
 target_compile_definitions(gdexample PUBLIC
     IMGUI_USER_CONFIG="imconfig-godot.h"
     )
 
 target_sources(gdexample PRIVATE
-    imgui/imgui.cpp
-    imgui/imgui_demo.cpp
-    imgui/imgui_draw.cpp
-    imgui/imgui_tables.cpp
-    imgui/imgui_widgets.cpp
-    imgui/imgui.h
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui.cpp
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui_demo.cpp
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui_draw.cpp
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui_tables.cpp
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui_widgets.cpp
+    ${FETCHCONTENT_BASE_DIR}/imgui-src/imgui.h
+    ${FETCHCONTENT_BASE_DIR}/implot-src/implot.cpp
+    ${FETCHCONTENT_BASE_DIR}/implot-src/implot_demo.cpp
+    ${FETCHCONTENT_BASE_DIR}/implot-src/implot_items.cpp
+    ${FETCHCONTENT_BASE_DIR}/implot-src/implot.h
     src/example.cpp
     src/example.h
     src/register_types.cpp
@@ -42,7 +53,12 @@ target_sources(gdexample PRIVATE
 
 target_link_libraries(gdexample PUBLIC godot-cpp)
 
-target_include_directories(gdexample PRIVATE src ${IMGUI_GODOT_INCLUDE} imgui)
+target_include_directories(gdexample PRIVATE
+    src
+    ${IMGUI_GODOT_INCLUDE}
+    ${FETCHCONTENT_BASE_DIR}/imgui-src
+    ${FETCHCONTENT_BASE_DIR}/implot-src
+    )
 
 set_property(TARGET gdexample
     PROPERTY OUTPUT_NAME "libgdexample.windows.template_$<IF:$<CONFIG:Debug>,debug,release>.x86_64")

diff --git a/doc/examples/GDExt/SConstruct b/doc/examples/GDExt/SConstruct
@@ -15,6 +15,9 @@ if not os.path.exists("imgui"):
     subprocess.call("git clone -b docking https://github.com/ocornut/imgui", shell=True)
     subprocess.call(f"git -C imgui checkout {IMGUI_TAG}", shell=True)
 
+if not os.path.exists("implot"):
+    subprocess.call("git clone https://github.com/epezent/implot", shell=True)
+
 env = SConscript("godot-cpp/SConstruct")
 env = env.Clone()
 
@@ -26,6 +29,10 @@ sources += Glob(f"imgui/*.cpp")
 env.Append(CPPDEFINES=['IMGUI_USER_CONFIG="\\"imconfig-godot.h\\""'])
 env.Append(CPPPATH=["imgui", IMGUI_GODOT_INCLUDE])
 
+# ImPlot
+sources += Glob(f"implot/*.cpp")
+env.Append(CPPPATH=["implot", IMGUI_GODOT_INCLUDE])
+
 if env["platform"] == "macos":
     library = env.SharedLibrary(
         "project/bin/libgdexample.{}.{}.framework/libgdexample.{}.{}".format(

diff --git a/doc/examples/GDExt/src/example.cpp b/doc/examples/GDExt/src/example.cpp
@@ -1,9 +1,10 @@
 #include "example.h"
 #include <godot_cpp/classes/resource_loader.hpp>
 #include <imgui-godot.h>
+#include <implot.h>
 
-using godot::ResourceLoader;
 using godot::Engine;
+using godot::ResourceLoader;
 
 void Example::_bind_methods()
 {
@@ -38,4 +39,6 @@ void Example::_process(double delta)
     ImGui::Separator();
     ImGui::Image(_img, {64, 64});
     ImGui::End();
+
+    ImPlot::ShowDemoWindow();
 }
diff --git a/doc/examples/GDExt/src/register_types.cpp b/doc/examples/GDExt/src/register_types.cpp
@@ -6,6 +6,7 @@
 #include <godot_cpp/core/defs.hpp>
 #include <godot_cpp/godot.hpp>
 #include <imgui-godot.h>
+#include <implot.h>
 
 using godot::MODULE_INITIALIZATION_LEVEL_SCENE;
 
@@ -15,6 +16,7 @@ void initialize_example_module(ModuleInitializationLevel p_level)
         return;
 
     ImGui::Godot::SyncImGuiPtrs();
+    ImPlot::CreateContext();
 
     godot::ClassDB::register_class<Example>();
 }
@@ -23,6 +25,8 @@ void uninitialize_example_module(ModuleInitializationLevel p_level)
 {
     if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE)
         return;
+
+    ImPlot::DestroyContext();
 }
 
 extern "C" {