From 605d24316bd452ef57241c5de742905c25ebd86a Mon Sep 17 00:00:00 2001
From: Yunji Park <yunji19.park@samsung.com>
Date: Tue, 9 Apr 2013 17:15:48 +0900
Subject: [PATCH] Add apis to know first/last line is displayed

Change-Id: I936dedd666078de328fd0dbff9f707c73521462b
---
 src/graphics/inc/FGrp_TextTextObject.h    |  4 ++++
 src/graphics/text/FGrp_TextTextObject.cpp | 40 +++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/src/graphics/inc/FGrp_TextTextObject.h b/src/graphics/inc/FGrp_TextTextObject.h
index 06263f8..2589792 100644
--- a/src/graphics/inc/FGrp_TextTextObject.h
+++ b/src/graphics/inc/FGrp_TextTextObject.h
@@ -129,6 +129,10 @@ public:
 
 	int GetLineIndexAtPositionY(float y) const;
 
+	bool IsDisplayedFirstLine(void) const;
+
+	bool IsDisplayedLastLine(void) const;
+
 	int GetFirstTextIndexAt(int lineIndex) const;
 
 	int GetTextLengthAt(int lineIndex) const;
diff --git a/src/graphics/text/FGrp_TextTextObject.cpp b/src/graphics/text/FGrp_TextTextObject.cpp
index bf1f21f..9eb8861 100644
--- a/src/graphics/text/FGrp_TextTextObject.cpp
+++ b/src/graphics/text/FGrp_TextTextObject.cpp
@@ -954,6 +954,46 @@ TextObject::IsDisplayedAtEndPosition(void) const
 	return isDisplayedAtEndPosition;
 }
 
+bool
+TextObject::IsDisplayedFirstLine(void) const
+{
+	IF_NOT_CONSTRUCTED(return false);
+
+	float firstDisplayPositionY = __pTextColumn->GetFirstDisplayPositionYF();
+	float firstLineHeight = GetLineHeightAtF(0);
+
+	bool isDisplayedFirstLine = false;
+	if(firstDisplayPositionY == 0.0f || firstDisplayPositionY < firstLineHeight)
+	{
+		isDisplayedFirstLine = true;
+	}
+
+	return isDisplayedFirstLine;
+}
+
+bool
+TextObject::IsDisplayedLastLine(void) const
+{
+	IF_NOT_CONSTRUCTED(return false);
+
+	float totalHeight = 0.0f;
+	float firstDisplayPositionY = 0.0f;
+	bool isDisplayedLastLine = false;
+
+	firstDisplayPositionY = __pTextColumn->GetFirstDisplayPositionYF();
+	totalHeight = __pTextColumn->GetTotalHeightF();
+
+	float lastLineHeight = GetLineHeightAtF(GetTotalLineCount()-1);
+
+	float remainingHeight = totalHeight - firstDisplayPositionY;
+	if (remainingHeight - __rect.height < lastLineHeight || remainingHeight <= __rect.height)
+	{
+		isDisplayedLastLine = true;
+	}
+
+	return isDisplayedLastLine;
+}
+
 result
 TextObject::SetAction(TextObjectActionType action)
 {
-- 
2.7.4