From d41e44b28183d0825bdf008fa512a97a030f8b40 Mon Sep 17 00:00:00 2001
From: turanszkij <turanszkij@gmail.com>
Date: Sat, 19 Sep 2015 01:49:30 +0200
Subject: [PATCH] added basic engine info display to main component

---
 WickedEngine/MainComponent.cpp         | 23 +++++++++
 WickedEngine/MainComponent.h           | 19 +++++++
 WickedEngine/MainComponent_BindLua.cpp | 68 ++++++++++++++++++++++++++
 WickedEngine/MainComponent_BindLua.h   |  4 ++
 4 files changed, 114 insertions(+)

diff --git a/WickedEngine/MainComponent.cpp b/WickedEngine/MainComponent.cpp
index 88f438adb..79af94495 100644
--- a/WickedEngine/MainComponent.cpp
+++ b/WickedEngine/MainComponent.cpp
@@ -7,6 +7,7 @@
 #include "wiInputManager.h"
 #include "wiBackLog.h"
 #include "MainComponent_BindLua.h"
+#include "WickedEngine.h"
 
 MainComponent::MainComponent()
 {
@@ -19,6 +20,8 @@ MainComponent::MainComponent()
 	setFrameSkip(true);
 	setTargetFrameRate(60);
 	setApplicationControlLostThreshold(10);
+
+	infoDisplay = InfoDisplayer();
 }
 
 
@@ -102,6 +105,26 @@ void MainComponent::Compose()
 {
 	getActiveComponent()->Compose();
 
+
+	if (infoDisplay.active)
+	{
+		stringstream ss("");
+		if (infoDisplay.watermark)
+		{
+			ss << string("Wicked Engine ") + string(WICKED_ENGINE_VERSION) << endl;
+		}
+		if (infoDisplay.fpsinfo)
+		{
+			ss.precision(2);
+			ss << fixed << wiFrameRate::FPS() << " FPS" << endl;
+		}
+		if (infoDisplay.cpuinfo)
+		{
+			ss << "CPU: " << wiCpuInfo::GetCpuPercentage() << "%" << endl;
+		}
+		wiFont(ss.str(), wiFontProps(0, 0, infoDisplay.size, WIFALIGN_LEFT, WIFALIGN_TOP, infoDisplay.size)).Draw();
+	}
+
 	wiBackLog::Draw();
 }
 
diff --git a/WickedEngine/MainComponent.h b/WickedEngine/MainComponent.h
index b6049603c..ae1fbbea0 100644
--- a/WickedEngine/MainComponent.h
+++ b/WickedEngine/MainComponent.h
@@ -49,5 +49,24 @@ public:
 	bool setWindow(Windows::UI::Core::CoreWindow^ window);
 #endif
 
+
+	struct InfoDisplayer
+	{
+		// activate the whole display
+		bool active;
+		// display engine version number
+		bool watermark;
+		// display framerate
+		bool fpsinfo;
+		// display cpu utilization
+		bool cpuinfo;
+		// text size
+		float size;
+
+		InfoDisplayer() :active(false), watermark(true), fpsinfo(true), cpuinfo(true), size(-7.f)
+		{}
+	};
+	// display all-time engine information text
+	InfoDisplayer infoDisplay;
 };
 
diff --git a/WickedEngine/MainComponent_BindLua.cpp b/WickedEngine/MainComponent_BindLua.cpp
index 3b38a6127..cf106e9c3 100644
--- a/WickedEngine/MainComponent_BindLua.cpp
+++ b/WickedEngine/MainComponent_BindLua.cpp
@@ -14,6 +14,10 @@ Luna<MainComponent_BindLua>::FunctionType MainComponent_BindLua::methods[] = {
 	lunamethod(MainComponent_BindLua, GetActiveComponent),
 	lunamethod(MainComponent_BindLua, SetActiveComponent),
 	lunamethod(MainComponent_BindLua, SetFrameSkip),
+	lunamethod(MainComponent_BindLua, SetInfoDisplay),
+	lunamethod(MainComponent_BindLua, SetWatermarkDisplay),
+	lunamethod(MainComponent_BindLua, SetFPSDisplay),
+	lunamethod(MainComponent_BindLua, SetCPUDisplay),
 	{ NULL, NULL }
 };
 Luna<MainComponent_BindLua>::PropertyType MainComponent_BindLua::properties[] = {
@@ -179,6 +183,70 @@ int MainComponent_BindLua::SetFrameSkip(lua_State *L)
 		wiLua::SError(L, "SetFrameSkip(bool enabled) not enought arguments!");
 	return 0;
 }
+int MainComponent_BindLua::SetInfoDisplay(lua_State *L)
+{
+	if (component == nullptr)
+	{
+		wiLua::SError(L, "SetInfoDisplay() component is empty!");
+		return 0;
+	}
+	int argc = wiLua::SGetArgCount(L);
+	if (argc > 0)
+	{
+		component->infoDisplay.active = wiLua::SGetBool(L, 1);
+	}
+	else
+		wiLua::SError(L, "SetInfoDisplay(bool active) not enough arguments!");
+	return 0;
+}
+int MainComponent_BindLua::SetWatermarkDisplay(lua_State *L)
+{
+	if (component == nullptr)
+	{
+		wiLua::SError(L, "SetWatermarkDisplay() component is empty!");
+		return 0;
+	}
+	int argc = wiLua::SGetArgCount(L);
+	if (argc > 0)
+	{
+		component->infoDisplay.watermark = wiLua::SGetBool(L, 1);
+	}
+	else
+		wiLua::SError(L, "SetWatermarkDisplay(bool active) not enough arguments!");
+	return 0;
+}
+int MainComponent_BindLua::SetFPSDisplay(lua_State *L)
+{
+	if (component == nullptr)
+	{
+		wiLua::SError(L, "SetFPSDisplay() component is empty!");
+		return 0;
+	}
+	int argc = wiLua::SGetArgCount(L);
+	if (argc > 0)
+	{
+		component->infoDisplay.fpsinfo = wiLua::SGetBool(L, 1);
+	}
+	else
+		wiLua::SError(L, "SetFPSDisplay(bool active) not enough arguments!");
+	return 0;
+}
+int MainComponent_BindLua::SetCPUDisplay(lua_State *L)
+{
+	if (component == nullptr)
+	{
+		wiLua::SError(L, "SetCPUDisplay() component is empty!");
+		return 0;
+	}
+	int argc = wiLua::SGetArgCount(L);
+	if (argc > 0)
+	{
+		component->infoDisplay.cpuinfo = wiLua::SGetBool(L, 1);
+	}
+	else
+		wiLua::SError(L, "SetCPUDisplay(bool active) not enough arguments!");
+	return 0;
+}
 
 void MainComponent_BindLua::Bind()
 {
diff --git a/WickedEngine/MainComponent_BindLua.h b/WickedEngine/MainComponent_BindLua.h
index 339d1209e..fe50439ce 100644
--- a/WickedEngine/MainComponent_BindLua.h
+++ b/WickedEngine/MainComponent_BindLua.h
@@ -20,6 +20,10 @@ public:
 	int GetActiveComponent(lua_State *L);
 	int SetActiveComponent(lua_State *L);
 	int SetFrameSkip(lua_State *L);
+	int SetInfoDisplay(lua_State *L);
+	int SetWatermarkDisplay(lua_State *L);
+	int SetFPSDisplay(lua_State *L);
+	int SetCPUDisplay(lua_State *L);
 
 	static void Bind();
 };