From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Sat, 6 Oct 2012 21:01:03 +0000 (+0200)
Subject: added some graphics primitive functions
X-Git-Url: https://git.localhorst.tv/?a=commitdiff_plain;h=3b5b2b79db22ef40c031d791a976310ea49e0d8e;p=l2e.git

added some graphics primitive functions
---

diff --git a/Debug/src/sdl/subdir.mk b/Debug/src/sdl/subdir.mk
index 4a12c4d..43bc0e6 100644
--- a/Debug/src/sdl/subdir.mk
+++ b/Debug/src/sdl/subdir.mk
@@ -6,17 +6,20 @@
 CPP_SRCS += \
 ../src/sdl/InitImage.cpp \
 ../src/sdl/InitSDL.cpp \
-../src/sdl/InitScreen.cpp 
+../src/sdl/InitScreen.cpp \
+../src/sdl/utility.cpp 
 
 OBJS += \
 ./src/sdl/InitImage.o \
 ./src/sdl/InitSDL.o \
-./src/sdl/InitScreen.o 
+./src/sdl/InitScreen.o \
+./src/sdl/utility.o 
 
 CPP_DEPS += \
 ./src/sdl/InitImage.d \
 ./src/sdl/InitSDL.d \
-./src/sdl/InitScreen.d 
+./src/sdl/InitScreen.d \
+./src/sdl/utility.d 
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/Release/src/sdl/subdir.mk b/Release/src/sdl/subdir.mk
index c3a1775..eb0681e 100644
--- a/Release/src/sdl/subdir.mk
+++ b/Release/src/sdl/subdir.mk
@@ -6,17 +6,20 @@
 CPP_SRCS += \
 ../src/sdl/InitImage.cpp \
 ../src/sdl/InitSDL.cpp \
-../src/sdl/InitScreen.cpp 
+../src/sdl/InitScreen.cpp \
+../src/sdl/utility.cpp 
 
 OBJS += \
 ./src/sdl/InitImage.o \
 ./src/sdl/InitSDL.o \
-./src/sdl/InitScreen.o 
+./src/sdl/InitScreen.o \
+./src/sdl/utility.o 
 
 CPP_DEPS += \
 ./src/sdl/InitImage.d \
 ./src/sdl/InitSDL.d \
-./src/sdl/InitScreen.d 
+./src/sdl/InitScreen.d \
+./src/sdl/utility.d 
 
 
 # Each subdirectory must supply rules for building sources it contributes
diff --git a/src/sdl/utility.cpp b/src/sdl/utility.cpp
new file mode 100644
index 0000000..101c3ee
--- /dev/null
+++ b/src/sdl/utility.cpp
@@ -0,0 +1,61 @@
+/*
+  * utility.cpp
+ *
+ *  Created on: Oct 6, 2012
+ *      Author: holy
+ */
+
+#include "utility.h"
+
+#include <cmath>
+
+using geometry::Vector;
+
+namespace sdl {
+
+void HorizontalLine(SDL_Surface *dst, const Vector<int> &position, unsigned int length, Uint32 color) {
+	SDL_Rect destRect;
+	destRect.x = position.X();
+	destRect.y = position.Y();
+	destRect.w = length;
+	destRect.h = 1;
+	SDL_FillRect(dst, &destRect, color);
+}
+
+void VerticalLine(SDL_Surface *dst, const geometry::Vector<int> &position, unsigned int length, Uint32 color) {
+	SDL_Rect destRect;
+	destRect.x = position.X();
+	destRect.y = position.Y();
+	destRect.w = 1;
+	destRect.h = length;
+	SDL_FillRect(dst, &destRect, color);
+}
+
+
+void OutlineRect(SDL_Surface *dst, const Vector<int> &from, const Vector<int> &to, Uint32 color) {
+	SDL_Rect destRect;
+	destRect.x = std::min(from.X(), to.X());
+	destRect.y = std::min(from.Y(), to.Y());
+	destRect.w = std::abs(from.X() - to.X());
+	destRect.h = std::abs(from.Y() - to.Y());
+	OutlineRect(dst, &destRect, color);
+}
+
+void OutlineRect(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color) {
+	SDL_Rect destRect;
+	destRect.x = dstrect->x;
+	destRect.y = dstrect->y;
+	destRect.w = dstrect->w;
+	destRect.h = 1;
+	SDL_FillRect(dst, &destRect, color);
+	destRect.y += dstrect->h - 1;
+	SDL_FillRect(dst, &destRect, color);
+	destRect.y = dstrect->y;
+	destRect.w = 1;
+	destRect.h = dstrect->h;
+	SDL_FillRect(dst, &destRect, color);
+	destRect.x += dstrect->w - 1;
+	SDL_FillRect(dst, &destRect, color);
+}
+
+}
diff --git a/src/sdl/utility.h b/src/sdl/utility.h
new file mode 100644
index 0000000..d63c78f
--- /dev/null
+++ b/src/sdl/utility.h
@@ -0,0 +1,24 @@
+/*
+ * utility.h
+ *
+ *  Created on: Oct 6, 2012
+ *      Author: holy
+ */
+
+#ifndef SDL_UTILITY_H_
+#define SDL_UTILITY_H_
+
+#include "../geometry/Vector.h"
+#include <SDL.h>
+
+namespace sdl {
+
+void HorizontalLine(SDL_Surface *dst, const geometry::Vector<int> &position, unsigned int length, Uint32 color);
+void VerticalLine(SDL_Surface *dst, const geometry::Vector<int> &position, unsigned int length, Uint32 color);
+
+void OutlineRect(SDL_Surface *dst, const geometry::Vector<int> &from, const geometry::Vector<int> &to, Uint32 color);
+void OutlineRect(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color);
+
+}
+
+#endif /* SDL_UTILITY_H_ */