From f964db2ccf83439b3b33a315b3b1aff4b1b5614b Mon Sep 17 00:00:00 2001
From: Kawe Mazidjatari <48657826+Mauler125@users.noreply.github.com>
Date: Tue, 9 Jul 2024 16:31:05 +0200
Subject: [PATCH] ImGui: create dedicated file for wrappers and implement
 RenderText

All future wrappers go here.
---
 src/thirdparty/imgui/CMakeLists.txt         |  2 ++
 src/thirdparty/imgui/misc/imgui_wrapper.cpp | 34 +++++++++++++++++++++
 src/thirdparty/imgui/misc/imgui_wrapper.h   | 13 ++++++++
 3 files changed, 49 insertions(+)
 create mode 100644 src/thirdparty/imgui/misc/imgui_wrapper.cpp
 create mode 100644 src/thirdparty/imgui/misc/imgui_wrapper.h

diff --git a/src/thirdparty/imgui/CMakeLists.txt b/src/thirdparty/imgui/CMakeLists.txt
index 15293e45..3f668ce5 100644
--- a/src/thirdparty/imgui/CMakeLists.txt
+++ b/src/thirdparty/imgui/CMakeLists.txt
@@ -42,6 +42,8 @@ add_sources( SOURCE_GROUP "Misc"
 	"misc/imgui_style.h"
 	"misc/imgui_utility.cpp"
 	"misc/imgui_utility.h"
+	"misc/imgui_wrapper.cpp"
+	"misc/imgui_wrapper.h"
 	"misc/cpp/imgui_stdlib.cpp"
 	"misc/cpp/imgui_stdlib.h"
 )
diff --git a/src/thirdparty/imgui/misc/imgui_wrapper.cpp b/src/thirdparty/imgui/misc/imgui_wrapper.cpp
new file mode 100644
index 00000000..461a4fd5
--- /dev/null
+++ b/src/thirdparty/imgui/misc/imgui_wrapper.cpp
@@ -0,0 +1,34 @@
+//============================================================================//
+// 
+// Purpose: Set of Dear ImGui wrappers
+// 
+//============================================================================//
+#include "imgui.h"
+#include "imgui_wrapper.h"
+
+#include "stdio.h"
+
+void ImGui_RenderText(const ImGuiTextAlign_e align, const ImVec2 pos, const ImVec4& color, const char* const fmt, ...)
+{
+	ImDrawList* const drawList = ImGui::GetBackgroundDrawList();
+	assert(drawList);
+
+	va_list argsCopy;
+	va_start(argsCopy, fmt);
+
+	char textBuffer[2048];
+
+	const int numChars = vsnprintf(textBuffer, sizeof(textBuffer), fmt, argsCopy);
+	va_end(argsCopy);
+
+	// nb(amos): 'vsnprintf' does not count the terminating null, so no -1 here.
+	const char* const textEnd = &textBuffer[numChars];
+	ImVec2 alignedPos = pos;
+
+	if (align == ImGuiTextAlign_e::kAlignCenter)
+		alignedPos.x -= ImGui::CalcTextSize(textBuffer, textEnd).x / 2;
+	else if (align == ImGuiTextAlign_e::kAlignRight)
+		alignedPos.x -= ImGui::CalcTextSize(textBuffer, textEnd).x;
+
+	drawList->AddText(alignedPos, ImGui::ColorConvertFloat4ToU32(color), textBuffer, textEnd);
+}
diff --git a/src/thirdparty/imgui/misc/imgui_wrapper.h b/src/thirdparty/imgui/misc/imgui_wrapper.h
new file mode 100644
index 00000000..1269fd6d
--- /dev/null
+++ b/src/thirdparty/imgui/misc/imgui_wrapper.h
@@ -0,0 +1,13 @@
+#ifndef IMGUI_WRAPPER_H
+#define IMGUI_WRAPPER_H
+
+enum class ImGuiTextAlign_e
+{
+	kAlignLeft,
+	kAlignCenter,
+	kAlignRight,
+};
+
+extern void ImGui_RenderText(const ImGuiTextAlign_e align, const ImVec2 pos, const ImVec4& color, const char* const fmt, ...);
+
+#endif // IMGUI_WRAPPER_H