From b9e4697d8a3eb40495a263936861f33b31fc761e Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Sat, 16 Nov 2013 19:59:06 +0000
Subject: (svn r26015) -Codechange: some constificaton

---
 src/gfx.cpp        |  6 +++---
 src/gfx_layout.cpp | 12 ++++++------
 src/gfx_layout.h   | 10 +++++-----
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/src/gfx.cpp b/src/gfx.cpp
index ecb2e7643..d02451774 100644
--- a/src/gfx.cpp
+++ b/src/gfx.cpp
@@ -339,7 +339,7 @@ static void SetColourRemap(TextColour colour)
  * @return In case of left or center alignment the right most pixel we have drawn to.
  *         In case of right alignment the left most pixel we have drawn to.
  */
-static int DrawLayoutLine(ParagraphLayout::Line *line, int y, int left, int right, StringAlignment align, bool underline, bool truncation)
+static int DrawLayoutLine(const ParagraphLayout::Line *line, int y, int left, int right, StringAlignment align, bool underline, bool truncation)
 {
 	if (line->countRuns() == 0) return 0;
 
@@ -640,8 +640,8 @@ int DrawStringMultiLine(int left, int right, int top, int bottom, const char *st
 	int last_line = top;
 	int first_line = bottom;
 
-	for (ParagraphLayout::Line **iter = layout.Begin(); iter != layout.End(); iter++) {
-		ParagraphLayout::Line *line = *iter;
+	for (const ParagraphLayout::Line **iter = layout.Begin(); iter != layout.End(); iter++) {
+		const ParagraphLayout::Line *line = *iter;
 
 		int line_height = line->getLeading();
 		if (y >= top && y < bottom) {
diff --git a/src/gfx_layout.cpp b/src/gfx_layout.cpp
index d2059788b..edd59f5f2 100644
--- a/src/gfx_layout.cpp
+++ b/src/gfx_layout.cpp
@@ -184,7 +184,7 @@ ParagraphLayout::VisualRun::~VisualRun()
  * Get the font associated with this run.
  * @return The font.
  */
-Font *ParagraphLayout::VisualRun::getFont() const
+const Font *ParagraphLayout::VisualRun::getFont() const
 {
 	return this->font;
 }
@@ -211,7 +211,7 @@ const GlyphID *ParagraphLayout::VisualRun::getGlyphs() const
  * Get the positions of this run.
  * @return The positions.
  */
-float *ParagraphLayout::VisualRun::getPositions() const
+const float *ParagraphLayout::VisualRun::getPositions() const
 {
 	return this->positions;
 }
@@ -278,7 +278,7 @@ int ParagraphLayout::Line::countRuns() const
  * Get a specific visual run.
  * @return The visual run.
  */
-ParagraphLayout::VisualRun *ParagraphLayout::Line::getVisualRun(int run) const
+const ParagraphLayout::VisualRun *ParagraphLayout::Line::getVisualRun(int run) const
 {
 	return *this->Get(run);
 }
@@ -307,7 +307,7 @@ void ParagraphLayout::reflow()
  * @param max_width The maximum width of the string.
  * @return A Line, or NULL when at the end of the paragraph.
  */
-ParagraphLayout::Line *ParagraphLayout::nextLine(int max_width)
+const ParagraphLayout::Line *ParagraphLayout::nextLine(int max_width)
 {
 	/* Simple idea:
 	 *  - split a line at a newline character, or at a space where we can break a line.
@@ -508,7 +508,7 @@ Layouter::Layouter(const char *str, int maxw, TextColour colour, FontSize fontsi
 		}
 
 		/* Copy all lines into a local cache so we can reuse them later on more easily. */
-		ParagraphLayout::Line *l;
+		const ParagraphLayout::Line *l;
 		while ((l = line.layout->nextLine(maxw)) != NULL) {
 			*this->Append() = l;
 		}
@@ -523,7 +523,7 @@ Layouter::Layouter(const char *str, int maxw, TextColour colour, FontSize fontsi
 Dimension Layouter::GetBounds()
 {
 	Dimension d = { 0, 0 };
-	for (ParagraphLayout::Line **l = this->Begin(); l != this->End(); l++) {
+	for (const ParagraphLayout::Line **l = this->Begin(); l != this->End(); l++) {
 		d.width = max<uint>(d.width, (*l)->getWidth());
 		d.height += (*l)->getLeading();
 	}
diff --git a/src/gfx_layout.h b/src/gfx_layout.h
index fb8866cc8..d57553e34 100644
--- a/src/gfx_layout.h
+++ b/src/gfx_layout.h
@@ -131,10 +131,10 @@ public:
 	public:
 		VisualRun(Font *font, const WChar *chars, int glyph_count, int x);
 		~VisualRun();
-		Font *getFont() const;
+		const Font *getFont() const;
 		int getGlyphCount() const;
 		const GlyphID *getGlyphs() const;
-		float *getPositions() const;
+		const float *getPositions() const;
 		int getLeading() const;
 		const int *getGlyphToCharMap() const;
 	};
@@ -145,7 +145,7 @@ public:
 		int getLeading() const;
 		int getWidth() const;
 		int countRuns() const;
-		VisualRun *getVisualRun(int run) const;
+		const VisualRun *getVisualRun(int run) const;
 	};
 
 	const WChar *buffer_begin; ///< Begin of the buffer.
@@ -154,7 +154,7 @@ public:
 
 	ParagraphLayout(WChar *buffer, int length, FontMap &runs);
 	void reflow();
-	Line *nextLine(int max_width);
+	const Line *nextLine(int max_width);
 };
 #endif /* !WITH_ICU */
 
@@ -163,7 +163,7 @@ public:
  *
  * It also accounts for the memory allocations and frees.
  */
-class Layouter : public AutoDeleteSmallVector<ParagraphLayout::Line *, 4> {
+class Layouter : public AutoDeleteSmallVector<const ParagraphLayout::Line *, 4> {
 #ifdef WITH_ICU
 	typedef UChar CharType; ///< The type of character used within the layouter.
 #else /* WITH_ICU */
-- 
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