From 05fc39e40faa817cdbf3e50de94d28a5ef9349dc Mon Sep 17 00:00:00 2001
From: jacob1 <jfu614@gmail.com>
Date: Fri, 14 Dec 2012 13:34:00 -0500
Subject: [PATCH] a working scrollbar in the save preview. Also, fix the bug
 where you couldn't go back up a page when there weren't enough comments to
 fill a page

---
 src/interface/ScrollPanel.cpp | 62 ++++++++++++++++++++++++++++++++---
 src/interface/ScrollPanel.h   |  7 ++++
 src/preview/PreviewModel.cpp  |  1 -
 src/preview/PreviewView.cpp   |  6 ++--
 4 files changed, 67 insertions(+), 9 deletions(-)

diff --git a/src/interface/ScrollPanel.cpp b/src/interface/ScrollPanel.cpp
index c2d4f66c3..74f6b62ab 100644
--- a/src/interface/ScrollPanel.cpp
+++ b/src/interface/ScrollPanel.cpp
@@ -10,17 +10,21 @@ ScrollPanel::ScrollPanel(Point position, Point size):
 	offsetY(0),
 	yScrollVel(0.0f),
 	xScrollVel(0.0f),
-	scrollBarWidth(0)
+	scrollBarWidth(0),
+	isMouseInsideScrollbar(false),
+	scrollbarSelected(false),
+	scrollbarInitialYOffset(0),
+	scrollbarInitialYClick(0)
 {
 
 }
 
 int ScrollPanel::GetScrollLimit()
 {
-	if(maxOffset.Y == -ViewportPosition.Y)
-		return 1;
-	else if(ViewportPosition.Y == 0)
+	if(ViewportPosition.Y == 0)
 		return -1;
+	else if(maxOffset.Y == -ViewportPosition.Y)
+		return 1;
 	return 0;
 }
 
@@ -52,6 +56,54 @@ void ScrollPanel::Draw(const Point& screenPos)
 	}
 }
 
+void ScrollPanel::XOnMouseClick(int x, int y, unsigned int button)
+{
+	if (isMouseInsideScrollbar)
+	{
+		scrollbarSelected = true;
+		scrollbarInitialYOffset = offsetY;
+		scrollbarInitialYClick = y;
+	}
+}
+
+void ScrollPanel::XOnMouseUp(int x, int y, unsigned int button)
+{
+	scrollbarSelected = false;
+}
+
+void ScrollPanel::XOnMouseMoved(int x, int y, int dx, int dy)
+{
+	if(maxOffset.Y>0 && InnerSize.Y>0)
+	{
+		float scrollHeight = float(Size.Y)*(float(Size.Y)/float(InnerSize.Y));
+		float scrollPos = 0;
+		if(-ViewportPosition.Y>0)
+		{
+			scrollPos = float(Size.Y-scrollHeight)*(float(offsetY)/float(maxOffset.Y));
+		}
+		
+		if (scrollbarSelected)
+		{
+			if (x > 0)
+			{
+				int scrollY = float(y-scrollbarInitialYClick)/float(Size.Y)*float(InnerSize.Y)+scrollbarInitialYOffset;
+				ViewportPosition.Y = -scrollY;
+				offsetY = scrollY;
+			}
+			else
+			{
+				ViewportPosition.Y = -scrollbarInitialYOffset;
+				offsetY = scrollbarInitialYOffset;
+			}
+		}
+
+		if (x > (Size.X-scrollBarWidth) && x < (Size.X-scrollBarWidth)+scrollBarWidth && y > scrollPos && y < scrollPos+scrollHeight)
+			isMouseInsideScrollbar = true;
+		else
+			isMouseInsideScrollbar = false;
+	}
+}
+
 void ScrollPanel::XTick(float dt)
 {
 	//if(yScrollVel > 7.0f) yScrollVel = 7.0f;
@@ -116,6 +168,6 @@ void ScrollPanel::XTick(float dt)
 
 	if(mouseInside && scrollBarWidth < 6)
 		scrollBarWidth++;
-	else if(!mouseInside && scrollBarWidth > 0)
+	else if(!mouseInside && scrollBarWidth > 0 && !scrollbarSelected)
 		scrollBarWidth--;
 }
\ No newline at end of file
diff --git a/src/interface/ScrollPanel.h b/src/interface/ScrollPanel.h
index fc54b3135..c26c42084 100644
--- a/src/interface/ScrollPanel.h
+++ b/src/interface/ScrollPanel.h
@@ -13,6 +13,10 @@ namespace ui
 		float offsetY;
 		float yScrollVel;
 		float xScrollVel;
+		bool isMouseInsideScrollbar;
+		bool scrollbarSelected;
+		int scrollbarInitialYOffset;
+		int scrollbarInitialYClick;
 	public:
 		ScrollPanel(Point position, Point size);
 
@@ -21,5 +25,8 @@ namespace ui
 		virtual void Draw(const Point& screenPos);
 		virtual void XTick(float dt);
 		virtual void XOnMouseWheelInside(int localx, int localy, int d);
+		virtual void XOnMouseClick(int localx, int localy, unsigned int button);
+		virtual void XOnMouseUp(int x, int y, unsigned int button);
+		virtual void XOnMouseMoved(int localx, int localy, int dx, int dy);
 	};
 }
\ No newline at end of file
diff --git a/src/preview/PreviewModel.cpp b/src/preview/PreviewModel.cpp
index 20f6bfd30..399fedf68 100644
--- a/src/preview/PreviewModel.cpp
+++ b/src/preview/PreviewModel.cpp
@@ -63,7 +63,6 @@ void * PreviewModel::updateSaveDataT()
 
 void * PreviewModel::updateSaveCommentsT()
 {
-	//Haha, j/k
 	std::vector<SaveComment*> * tempComments = Client::Ref().GetComments(tSaveID, (commentsPageNumber-1)*20, 20);
 	updateSaveCommentsFinished = true;
 	return tempComments;
diff --git a/src/preview/PreviewView.cpp b/src/preview/PreviewView.cpp
index 445142ae0..d6c444858 100644
--- a/src/preview/PreviewView.cpp
+++ b/src/preview/PreviewView.cpp
@@ -53,7 +53,7 @@ public:
 };
 
 PreviewView::PreviewView():
-	ui::Window(ui::Point(-1, -1), ui::Point((XRES/2)+200, (YRES/2)+150)),
+	ui::Window(ui::Point(-1, -1), ui::Point((XRES/2)+210, (YRES/2)+150)),
 	savePreview(NULL),
 	doOpen(false),
 	addCommentBox(NULL),
@@ -514,7 +514,7 @@ void PreviewView::NotifyCommentsChanged(PreviewModel * sender)
 		for(int i = 0; i < comments.size(); i++)
 		{
 			int usernameY = currentY+5, commentY;
-			tempUsername = new ui::Label(ui::Point(5, currentY+5), ui::Point(Size.X-((XRES/2) + 10), 16), comments[i].authorName);
+			tempUsername = new ui::Label(ui::Point(5, currentY+5), ui::Point(Size.X-((XRES/2) + 13), 16), comments[i].authorName);
 			tempUsername->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
 			tempUsername->Appearance.VerticalAlign = ui::Appearance::AlignBottom;
 			currentY += 16;
@@ -524,7 +524,7 @@ void PreviewView::NotifyCommentsChanged(PreviewModel * sender)
 
 
 			commentY = currentY+5;
-			tempComment = new ui::Label(ui::Point(5, currentY+5), ui::Point(Size.X-((XRES/2) + 10), -1), comments[i].comment);
+			tempComment = new ui::Label(ui::Point(5, currentY+5), ui::Point(Size.X-((XRES/2) + 13), -1), comments[i].comment);
 			tempComment->SetMultiline(true);
 			tempComment->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
 			tempComment->Appearance.VerticalAlign = ui::Appearance::AlignTop;