changed svn layout

git-svn-id: svn://ultimatepp.org/upp/trunk@281 f0d560ea-af0d-0410-9eb7-867de7ffcac7

tutorial/Image06/main.cpp

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+#include <CtrlLib/CtrlLib.h>
+
+using namespace Upp;
+
+Image CreateBall(int r, Color color)
+{
+	int rr = 2 * r;
+	int r2 = r * r;
+	ImageBuffer b(rr, rr);
+	for(int y = 0; y < rr; y++)
+		for(int x = 0; x < rr; x++) {
+			RGBA& a = b[y][x];
+			a.r = color.GetR();
+			a.g = color.GetG();
+			a.b = color.GetB();
+			int q = ((x - r) * (x - r) + (y - r) * (y - r)) * 256 / r2;
+			a.a = q <= 255 ? q : 0;
+		}
+	return b;
+}
+
+struct BallMaker : ImageMaker {
+	Color color;
+	int   r;
+
+	virtual String Key() const;
+	virtual Image Make() const;
+};
+
+String BallMaker::Key() const
+{
+	char h[sizeof(int) + 3];
+	*(int *)h = r;
+	h[sizeof(int)] = color.GetR();
+	h[sizeof(int) + 1] = color.GetG();
+	h[sizeof(int) + 2] = color.GetB();
+	return String(h, sizeof(int) + 3);
+}
+
+Image BallMaker::Make() const
+{
+	return CreateBall(r, color);
+}
+
+Image CreateBallCached(int r, Color color)
+{
+	BallMaker m;
+	m.r = r;
+	m.color = color;
+	return MakeImage(m);
+}
+
+struct MyApp : public TopWindow {
+	bool cached;
+
+	virtual void Paint(Draw& w) {
+		w.DrawRect(GetSize(), White);
+		for(int y = 0; y < 300; y += 30)
+			for(int i = 10; i < 500; i += i / 3) {
+				Color c = Color((200 * i) & 255, (150 * i) & 255, (300 * i) & 255);
+				w.DrawImage(i, y + i / 5, (cached ? CreateBallCached : CreateBall)(i / 2, c));
+			}
+	}
+
+	virtual void LeftDown(Point, dword) {
+		cached = true;
+		Title("Now cached - try to resize the window to see the speed");
+	}
+
+	MyApp() {
+		cached = false;
+		Title("Not cached - try to resize the window to see the speed, click to activate the cache");
+		Sizeable().Zoomable();
+	}
+};
+
+GUI_APP_MAIN
+{
+	MyApp().Run();
+}