From 418373a3cd6cf93ee1e41ffa502b8f4754831349 Mon Sep 17 00:00:00 2001
From: Simon Robertshaw <simon@hardwired.org.uk>
Date: Sun, 29 Jul 2012 15:08:38 +0100
Subject: [PATCH] HUD toggle, addresses "h should toggle the HUD" in issue #23

---
 src/game/GameView.cpp | 47 +++++++++++++++++++++++++------------------
 src/game/GameView.h   |  1 +
 2 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/src/game/GameView.cpp b/src/game/GameView.cpp
index 290a72bc6..d7d0a5010 100644
--- a/src/game/GameView.cpp
+++ b/src/game/GameView.cpp
@@ -39,7 +39,8 @@ GameView::GameView():
 	infoTipPresence(0),
 	toolTipPosition(-1, -1),
 	shiftBehaviour(false),
-	ctrlBehaviour(false)
+	ctrlBehaviour(false),
+	showHud(true)
 {
 	
 	int currentX = 1;
@@ -943,6 +944,9 @@ void GameView::OnKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool
 	case 'f':
 		c->FrameStep();
 		break;
+	case 'h':
+		showHud = !showHud;
+		break;
 	case 'b':
 		if(ctrl)
 			c->SetDecoration();
@@ -1390,34 +1394,37 @@ void GameView::OnDraw()
 		}
 	}
 
-	//Draw info about simulation under cursor
-	std::stringstream sampleInfo;
-	sampleInfo.precision(2);
-	if(sample.particle.type)
-		sampleInfo << c->ElementResolve(sample.particle.type) << ", Temp: " << std::fixed << sample.particle.temp -273.15f;
-	else
-		sampleInfo << "Empty";
+	if(showHud)
+	{
+		//Draw info about simulation under cursor
+		std::stringstream sampleInfo;
+		sampleInfo.precision(2);
+		if(sample.particle.type)
+			sampleInfo << c->ElementResolve(sample.particle.type) << ", Temp: " << std::fixed << sample.particle.temp -273.15f;
+		else
+			sampleInfo << "Empty";
 
-	sampleInfo << ", Pressure: " << std::fixed << sample.AirPressure;
+		sampleInfo << ", Pressure: " << std::fixed << sample.AirPressure;
 
-	int textWidth = Graphics::textwidth((char*)sampleInfo.str().c_str());
-	g->fillrect(XRES-20-textWidth, 12, textWidth+8, 15, 0, 0, 0, 255*0.5);
-	g->drawtext(XRES-16-textWidth, 16, (const char*)sampleInfo.str().c_str(), 255, 255, 255, 255*0.75);
+		int textWidth = Graphics::textwidth((char*)sampleInfo.str().c_str());
+		g->fillrect(XRES-20-textWidth, 12, textWidth+8, 15, 0, 0, 0, 255*0.5);
+		g->drawtext(XRES-16-textWidth, 16, (const char*)sampleInfo.str().c_str(), 255, 255, 255, 255*0.75);
 
 
-	//FPS and some version info
+		//FPS and some version info
 #ifndef DEBUG //In debug mode, the Engine will draw FPS and other info instead
-	std::stringstream fpsInfo;
-	fpsInfo.precision(2);
+		std::stringstream fpsInfo;
+		fpsInfo.precision(2);
 #ifdef SNAPSHOT
-	fpsInfo << "Snapshot " << SNAPSHOT_ID << ". ";
+		fpsInfo << "Snapshot " << SNAPSHOT_ID << ". ";
 #endif
-	fpsInfo << "FPS: " << std::fixed << ui::Engine::Ref().GetFps();
+		fpsInfo << "FPS: " << std::fixed << ui::Engine::Ref().GetFps();
 
-	textWidth = Graphics::textwidth((char*)fpsInfo.str().c_str());
-	g->fillrect(12, 12, textWidth+8, 15, 0, 0, 0, 255*0.5);
-	g->drawtext(16, 16, (const char*)fpsInfo.str().c_str(), 32, 216, 255, 255*0.75);
+		textWidth = Graphics::textwidth((char*)fpsInfo.str().c_str());
+		g->fillrect(12, 12, textWidth+8, 15, 0, 0, 0, 255*0.5);
+		g->drawtext(16, 16, (const char*)fpsInfo.str().c_str(), 32, 216, 255, 255*0.75);
 #endif
+	}
 
 	//Tooltips
 	if(infoTipPresence)
diff --git a/src/game/GameView.h b/src/game/GameView.h
index 648faec1c..9db25f414 100644
--- a/src/game/GameView.h
+++ b/src/game/GameView.h
@@ -40,6 +40,7 @@ private:
 	bool drawSnap;
 	bool shiftBehaviour;
 	bool ctrlBehaviour;
+	bool showHud;
 	int toolIndex;
 
 	int infoTipPresence;