lab4 start

Lab4/x11context.h

@@ -0,0 +1,49 @@
+#ifndef X11_CONTEXT
+#define X11_CONTEXT
+/**
+ * This class is a sample implementation of the GraphicsContext class
+ * for the X11 / XWindows system.
+ * */    
+ 
+#include <X11/Xlib.h>   // Every Xlib program must include this
+#include "gcontext.h"	// base class
+
+class X11Context : public GraphicsContext
+{
+	public:
+		// Default Constructor
+		X11Context(unsigned int sizex,unsigned int sizey,unsigned int bg_color);
+
+		// Destructor
+		virtual ~X11Context();
+		
+		// Drawing Operations
+		void setMode(drawMode newMode);
+		void setColor(unsigned int color);
+		void setPixel(int x, int y);
+		unsigned int getPixel(int x, int y);
+		void clear();
+		//void drawLine(int x1, int y1, int x2, int y2);
+		void drawLine(int x1, int y1, int x2, int y2);
+		void drawCircle(int x, int y, unsigned int radius);
+
+
+		// Event looop functions
+		void runLoop(DrawingBase* drawing);		
+		
+		// we will use endLoop provided by base class
+		
+		// Utility functions
+		int getWindowWidth();
+		int getWindowHeight();
+		
+
+	private:
+		// X11 stuff - specific to this context
+		Display* display;
+		Window window;
+		GC graphics_context;
+
+};
+
+#endif