.reference: Rainbow example (RM #158)

git-svn-id: svn://ultimatepp.org/upp/trunk@4176 f0d560ea-af0d-0410-9eb7-867de7ffcac7

reference/Framebuffer/Draw.cpp

@@ -0,0 +1,105 @@
+#include <CtrlCore/CtrlCore.h>
+
+#ifdef GUI_FB
+
+NAMESPACE_UPP
+
+#define LLOG(x) // LOG(x)
+#define LTIMING(x) // RTIMING(x)
+
+SystemDraw::SystemDraw()
+:	BufferPainter(Ctrl::framebuffer, Ctrl::renderingMode)
+{
+}
+
+SystemDraw::~SystemDraw()
+{
+}
+
+
+void SystemDraw::Push()
+{
+	Point p = GetOffset();
+	offset.Add(p);
+	BufferPainter::BeginOp();
+}
+
+void SystemDraw::Pop()
+{
+	if(offset.GetCount())
+		offset.Drop();
+	BufferPainter::EndOp();
+}
+
+Point SystemDraw::GetOffset() const
+{
+	return offset.GetCount() ? offset.Top() : Point(0, 0);
+}
+
+void SystemDraw::BeginOp()
+{
+	Push();
+}
+
+void SystemDraw::EndOp()
+{
+	Pop();
+}
+
+void SystemDraw::OffsetOp(Point p)
+{
+	Push();
+	offset.Top() += p;
+	Translate(p.x, p.y);
+}
+
+bool SystemDraw::ClipOp(const Rect& r)
+{
+	Push();
+	RectPath(r);
+	Painter::Clip();
+	return true;
+}
+
+bool SystemDraw::ClipoffOp(const Rect& r)
+{
+	Push();
+	offset.Top() += r.TopLeft();
+	RectPath(r);
+	Painter::Clip();
+	Translate(r.left, r.top);
+	return true;
+}
+
+bool SystemDraw::IsPaintingOp(const Rect& r) const
+{
+	Rect rr = r + GetOffset();
+	for(int i = 0; i < Ctrl::invalid.GetCount(); i++)
+		if(Ctrl::invalid[i].Intersects(rr))
+			return true;
+	return true;
+}
+
+/*Rect SystemDraw::GetVirtualScreenArea()
+{
+	GuiLock __;
+}*/
+
+/*
+void BackDraw::Destroy()
+{
+	GuiLock __;
+}
+
+void BackDraw::Create(SystemDraw& w, int cx, int cy) {
+	GuiLock __;
+}
+
+void BackDraw::Put(SystemDraw& w, int x, int y) {
+	GuiLock __;
+}
+*/
+
+END_UPP_NAMESPACE
+
+#endif