From 167fe3525cd1c29cbe1a23e3b14e2a1f2774835c Mon Sep 17 00:00:00 2001
From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Wed, 8 Aug 2012 23:41:57 +0200
Subject: [PATCH] added cursor sprite for menu

---
 src/battle/Resources.h    |   4 ++++
 src/graphics/Menu.h       |  31 ++++++++++++++++++++++++++++---
 src/main.cpp              |   6 +++++-
 test-data/cursor-hand.png | Bin 0 -> 392 bytes
 4 files changed, 37 insertions(+), 4 deletions(-)
 create mode 100644 test-data/cursor-hand.png

diff --git a/src/battle/Resources.h b/src/battle/Resources.h
index 098c844..3876072 100644
--- a/src/battle/Resources.h
+++ b/src/battle/Resources.h
@@ -39,6 +39,8 @@ struct Resources {
 	graphics::Font *normalFont;
 	graphics::Font *disabledFont;
 
+	graphics::Sprite *menuCursor;
+
 	const char *spellMenuHeadline;
 	graphics::Menu</* Spell */ void *> spellMenuPrototype;
 
@@ -62,6 +64,8 @@ struct Resources {
 	, normalFont(0)
 	, disabledFont(0)
 
+	, menuCursor(0)
+
 	, spellMenuHeadline("")
 	{ }
 
diff --git a/src/graphics/Menu.h b/src/graphics/Menu.h
index 90af3e4..ab661c7 100644
--- a/src/graphics/Menu.h
+++ b/src/graphics/Menu.h
@@ -9,6 +9,7 @@
 #define GRAPHICS_MENU_H_
 
 #include "Font.h"
+#include "Sprite.h"
 #include "../geometry/operators.h"
 #include "../geometry/Point.h"
 #include "../geometry/Vector.h"
@@ -27,7 +28,8 @@ template<class T>
 class Menu {
 
 public:
-	explicit Menu(const Font *font = NULL, const Font *disabledFont = NULL, int charsPerEntry = 16, int rows = 1, int rowGap = 0, int cols = 1, int colGap = 0);
+	Menu();
+	Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap = 0, int cols = 1, int colGap = 0);
 
 public:
 	int Width() const;
@@ -72,6 +74,7 @@ private:
 	};
 	const Font *font;
 	const Font *disabledFont;
+	const Sprite *cursor;
 	std::vector<Entry> entries;
 	int charsPerEntry;
 	int rows;
@@ -85,9 +88,25 @@ private:
 
 
 template<class T>
-Menu<T>::Menu(const Font *font, const Font *disabledFont, int charsPerEntry, int rows, int rowGap, int cols, int colGap)
+Menu<T>::Menu()
+: font(0)
+, disabledFont(0)
+, cursor(0)
+, charsPerEntry(0)
+, rows(0)
+, rowGap(0)
+, cols(0)
+, colGap(0)
+, selected(0)
+, topRow(0) {
+
+}
+
+template<class T>
+Menu<T>::Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap, int cols, int colGap)
 : font(font)
 , disabledFont(disabledFont ? disabledFont : font)
+, cursor(cursor)
 , charsPerEntry(charsPerEntry)
 , rows(rows)
 , rowGap(rowGap)
@@ -149,13 +168,19 @@ void Menu<T>::Draw(SDL_Surface *dest, geometry::Point<int> position) const {
 	int items(entries.size() - start);
 	int end(items < slots ? items : slots);
 	for (int i(0), count(end - start); i < count; ++i) {
-		geometry::Vector<int> offset((i % cols) * (ColWidth() + colGap), (i / cols) * RowHeight());
+		geometry::Vector<int> offset(
+				(i % cols) * (ColWidth() + colGap),
+				(i / cols) * RowHeight());
 		if (entries[start + i].enabled) {
 			font->DrawString(entries[start + i].title, dest, position + offset, charsPerEntry);
 		} else {
 			disabledFont->DrawString(entries[start + i].title, dest, position + offset, charsPerEntry);
 		}
 	}
+	geometry::Vector<int> cursorOffset(
+			(selected % cols) * (ColWidth() + colGap) - cursor->Width(),
+			(selected / cols) * RowHeight());
+	cursor->Draw(dest, position + cursorOffset);
 }
 
 }
diff --git a/src/main.cpp b/src/main.cpp
index df3def1..9a68807 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -182,8 +182,12 @@ int main(int argc, char **argv) {
 		// TODO: add '.' character
 		battleRes.disabledFont = &disabledFont;
 
+		SDL_Surface *handCursorImg(IMG_Load("test-data/cursor-hand.png"));
+		Sprite handCursorSprite(handCursorImg, 32, 32);
+		battleRes.menuCursor = &handCursorSprite;
+
 		battleRes.spellMenuHeadline = "Please choose a spell.";
-		battleRes.spellMenuPrototype = Menu</* Spell */ void *>(&normalFont, &disabledFont, 12, 6, 8, 2, 32);
+		battleRes.spellMenuPrototype = Menu</* Spell */ void *>(&normalFont, &disabledFont, &handCursorSprite, 12, 6, 8, 2, 32);
 
 		BattleState *battleState(new BattleState(bg, monstersLayout, heroesLayout, &battleRes));
 		battleState->AddMonster(monster);
diff --git a/test-data/cursor-hand.png b/test-data/cursor-hand.png
new file mode 100644
index 0000000000000000000000000000000000000000..3f2c514ec0a12b787988edd26251642e3ee5ae47
GIT binary patch
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-- 
2.39.2