From da49c38c9fb84ef2a6db0e519b030a82252ca6ea Mon Sep 17 00:00:00 2001
From: VoltZ <47382115+SuperSaiyajinVoltZ@users.noreply.github.com>
Date: Fri, 1 Nov 2019 20:50:00 +0100
Subject: [PATCH] Add Scrolling.

---
 include/gui.hpp                |  2 ++
 include/screens/scriptlist.hpp |  4 ++-
 source/screens/scriptlist.cpp  | 45 ++++++++++++++++++++++++++++++++--
 3 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/include/gui.hpp b/include/gui.hpp
index 7ef2dd7..920a61a 100644
--- a/include/gui.hpp
+++ b/include/gui.hpp
@@ -41,6 +41,8 @@
 #define BarColor 		C2D_Color32(57, 84, 114, 255)
 #define TopBGColor 		C2D_Color32(96, 168, 192, 255)
 #define BottomBGColor 	C2D_Color32(38, 44, 77, 255)
+#define SelectedColor	C2D_Color32(120, 192, 216, 255)
+#define UnselectedColor	C2D_Color32(77, 118, 132, 255)
 #define BLACK 			C2D_Color32(0, 0, 0, 255)
 #define WHITE 			C2D_Color32(255, 255, 255, 255)
 #define TextColor		C2D_Color32(102, 179, 255, 255)
diff --git a/include/screens/scriptlist.hpp b/include/screens/scriptlist.hpp
index 2685949..12f1cab 100644
--- a/include/screens/scriptlist.hpp
+++ b/include/screens/scriptlist.hpp
@@ -37,10 +37,12 @@ public:
 	void Draw(void) const override;
 	void Logic(u32 hDown, u32 hHeld, touchPosition touch) override;
 	ScriptList();
+	void showParsedObjects(void) const;
 
 private:
 	std::vector<DirEntry> dirContents;
-	uint selectedFile = 0;
+	mutable int screenPos = 0;
+	mutable int selection = 0;
 	int keyRepeatDelay = 0;
 	int fastMode = false;
 	bool dirChanged = true;
diff --git a/source/screens/scriptlist.cpp b/source/screens/scriptlist.cpp
index 33aff38..adfeeea 100644
--- a/source/screens/scriptlist.cpp
+++ b/source/screens/scriptlist.cpp
@@ -58,6 +58,7 @@ Info parseInfo(std::string fileName) {
 	return info;
 }
 
+
 std::vector<Info> fileInfo;
 
 ScriptList::ScriptList() {
@@ -69,21 +70,61 @@ ScriptList::ScriptList() {
 	}
 }
 
+
 void ScriptList::Draw(void) const {
 	std::string titleinfo;
 	Gui::DrawTop();
 	Gui::DrawStringCentered(0, 2, 0.7f, TextColor, "Universal-Updater", 400);
 	Gui::DrawBottom();
 	for(int i=0;i<ENTRIES_PER_SCREEN && i<(int)fileInfo.size();i++) {
-		titleinfo = fileInfo[i].title + '\n' + fileInfo[i].description;
-		Gui::Draw_Rect(0, 40+(i*57), 320, 45, TopBGColor);
+		titleinfo = fileInfo[screenPos + i].title + '\n' + fileInfo[screenPos + i].description;
+		if(screenPos + i == selection) {
+			Gui::Draw_Rect(0, 40+(i*57), 320, 45, SelectedColor);
+		} else { 
+			Gui::Draw_Rect(0, 40+(i*57), 320, 45, UnselectedColor);
+		}
 		Gui::DrawString(0, 40+(i*57), 0.7f, WHITE, titleinfo, 320);
 	}
 }
 
+
+
 void ScriptList::Logic(u32 hDown, u32 hHeld, touchPosition touch) {
+	if (keyRepeatDelay)	keyRepeatDelay--;
 	if (hDown & KEY_B) {
 		Gui::screenBack();
 		return;
 	}
+
+	if (hHeld & KEY_DOWN && !keyRepeatDelay) {
+		if (selection < (int)fileInfo.size()-1) {
+			selection++;
+		} else {
+			selection = 0;
+		}
+		if (fastMode == true) {
+			keyRepeatDelay = 3;
+		} else if (fastMode == false){
+			keyRepeatDelay = 6;
+		}
+	}
+
+	if (hHeld & KEY_UP && !keyRepeatDelay) {
+		if (selection > 0) {
+			selection--;
+		} else {
+			selection = (int)fileInfo.size()-1;
+		}
+		if (fastMode == true) {
+			keyRepeatDelay = 3;
+		} else if (fastMode == false){
+			keyRepeatDelay = 6;
+		}
+	}
+
+	if(selection < screenPos) {
+		screenPos = selection;
+	} else if (selection > screenPos + ENTRIES_PER_SCREEN - 1) {
+		screenPos = selection - ENTRIES_PER_SCREEN + 1;
+	}
 }
\ No newline at end of file