From 1ef5607405979cfaec0329c5e089897da3674e32 Mon Sep 17 00:00:00 2001
From: Andrew Wong <curewater@users.sourceforge.net>
Date: Wed, 16 Jul 2003 13:13:26 +0000
Subject: [PATCH] basic support for scrolling song list in screenunlock (oops,
 forgot the important files)

---
 stepmania/src/ScreenUnlock.cpp | 76 ++++++++++++++++++++++++++++++++++
 stepmania/src/ScreenUnlock.h   |  3 ++
 2 files changed, 79 insertions(+)

diff --git a/stepmania/src/ScreenUnlock.cpp b/stepmania/src/ScreenUnlock.cpp
index 813509b755..8fa53a4ee2 100644
--- a/stepmania/src/ScreenUnlock.cpp
+++ b/stepmania/src/ScreenUnlock.cpp
@@ -18,6 +18,7 @@
 #include "UnlockSystem.h"
 #include "SongManager.h"
 #include "ActorUtil.h"
+#include "Song.h"
 
 ScreenUnlock::ScreenUnlock() : ScreenAttract("ScreenUnlock")
 {
@@ -62,6 +63,68 @@ ScreenUnlock::ScreenUnlock() : ScreenAttract("ScreenUnlock")
 			this->AddChild(&Unlocks[i]);
 	}
 
+	// scrolling text
+	if (THEME->GetMetricI("ScreenUnlock", "UnlockTextScroll") != 0)
+	{
+		int NumberUnlocks = THEME->GetMetricF("ScreenUnlock", "NumUnlocks");
+		float ScrollingTextX = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollX");
+		float ScrollingTextStartY = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollStartY");
+		float ScrollingTextEndY = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollEndY");
+		float ScrollingTextZoom = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollZoom");
+		float ScrollingTextRows = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollRows");
+		float MaxWidth = THEME->GetMetricF("ScreenUnlock", "UnlockTextScrollMaxWidth");
+
+		float SecondsToScroll = THEME->GetMetricF("ScreenUnlock", "TimeToDisplay");
+		if (SecondsToScroll > 2) SecondsToScroll--;
+
+		const float SECS_PER_CYCLE = (float)SecondsToScroll/(ScrollingTextRows + NumberUnlocks);
+
+		for(int i = 1; i <= NumberUnlocks; i++)
+		{
+			item[i].LoadFromFont( THEME->GetPathToF("_shared2") );
+			item[i].SetHorizAlign( Actor::align_left );
+
+			CString SongText = THEME->GetMetric("ScreenUnlock", 
+				ssprintf("Unlock%dSong", i));
+
+			SongText.MakeUpper();
+			SongEntry *pSong = GAMESTATE->m_pUnlockingSys->FindSong(SongText);
+
+			if (pSong != NULL && pSong->ActualSong != NULL)
+			{
+				LOG->Trace("Entry %d, pointer=%d", i, (int)pSong);
+				SongText = pSong->ActualSong->GetFullDisplayTitle();
+			}
+			else if (pSong == NULL)  // song is not in library
+				item[i].Command("Diffuse,0,1,0,1");
+			else					 // song is mistyped
+				item[i].Command("Diffuse,1,0,0,1");
+
+			BreakLine(SongText);
+
+			item[i].SetZoom(ScrollingTextZoom);
+			item[i].SetTextMaxWidth(MaxWidth, SongText );
+
+			if (pSong->isLocked)
+			{
+				item[i].SetText("????????");
+				item[i].SetZoom(ScrollingTextZoom * 1.99);
+			}
+
+			item[i].SetXY(ScrollingTextX, ScrollingTextStartY);
+
+			CString commands;
+
+			commands = ssprintf("diffusealpha,0;sleep,%f;linear,0.5;diffusealpha,1;linear,%f;y,%f;linear,0.5;diffusealpha,0", SECS_PER_CYCLE * (i - 1), SECS_PER_CYCLE * (ScrollingTextRows), ScrollingTextEndY);
+
+			LOG->Trace("Updated text %d: %s", i, SongText.c_str() );
+
+			item[i].Command(commands);
+			this->AddChild(&item[i]);
+		}
+	}
+
+
 	PointsUntilNextUnlock.SetName( "PointsDisplay" );
 	
 	if (PointDisplay == "DP" || PointDisplay == "Dance")
@@ -82,3 +145,16 @@ ScreenUnlock::ScreenUnlock() : ScreenAttract("ScreenUnlock")
 	this->PostScreenMessage( SM_BeginFadingOut, 
 		THEME->GetMetricF("ScreenUnlock", "TimeToDisplay") );
 }
+
+
+void ScreenUnlock::BreakLine(CString& line)
+{
+	for(unsigned i = 1; i < line.GetLength(); i++)
+		if (line[i] == '~' || line[i] == '(')
+			if (line[i-1] == ' ')
+			{
+				line[i-1] = '\n';
+				return;
+			}
+
+}
\ No newline at end of file
diff --git a/stepmania/src/ScreenUnlock.h b/stepmania/src/ScreenUnlock.h
index f215d8413a..51f70fa1d5 100644
--- a/stepmania/src/ScreenUnlock.h
+++ b/stepmania/src/ScreenUnlock.h
@@ -25,4 +25,7 @@ public:
 protected:
 	BitmapText PointsUntilNextUnlock;
 	Sprite Unlocks[NUM_UNLOCKS];       // support 30 unlocks right now
+	BitmapText item[NUM_UNLOCKS];      // for scrolling text
+
+	void BreakLine(CString& line);			// used in scrollingtext
 };