From 87bad2d9fa04f3abf0c9ffdaf1b6b91f2cfa946f Mon Sep 17 00:00:00 2001
From: cxl <cxl@f0d560ea-af0d-0410-9eb7-867de7ffcac7>
Date: Fri, 16 Jan 2009 00:04:17 +0000
Subject: [PATCH] DrawPainting printer support (banding)

git-svn-id: svn://ultimatepp.org/upp/trunk@756 f0d560ea-af0d-0410-9eb7-867de7ffcac7
---
 uppsrc/Draw/Draw.cpp             | 18 ++++++++++++++++--
 uppsrc/Painter/PaintPainting.cpp |  2 +-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/uppsrc/Draw/Draw.cpp b/uppsrc/Draw/Draw.cpp
index 1ac228e83..793997ee6 100644
--- a/uppsrc/Draw/Draw.cpp
+++ b/uppsrc/Draw/Draw.cpp
@@ -345,9 +345,23 @@ void RegisterDrawPaintingFn(void (*fn)(ImageBuffer& ib, const Painting& pw, Size
 
 void Draw::DrawPaintingOp(const Rect& target, const Painting& pw)
 {
-	if(DrawPaintingFn) {
-		Size sz = target.GetSize();
+	if(!DrawPaintingFn)
+		return;
+	Size sz = target.GetSize();
+	if((sz.cx > 2000 || sz.cy > 1500) && IsPrinter()) {
+		int yy = 0;
+		while(yy < sz.cy) {
+			int ccy = min(sz.cy - yy, 100);
+			ImageBuffer ib(sz.cx, ccy);
+			Fill(~ib, RGBAZero(), ib.GetLength());
+			DrawPaintingFn(ib, pw, sz, Point(0, yy));
+			DrawImageBandRLE(*this, target.left, target.top + yy, ib, 16);
+			yy += ccy;
+		}
+	}
+	else {
 		ImageBuffer ib(sz);
+		Fill(~ib, RGBAZero(), ib.GetLength());
 		DrawPaintingFn(ib, pw, sz, Point(0, 0));
 		DrawImage(target.left, target.top, ib);
 	}
diff --git a/uppsrc/Painter/PaintPainting.cpp b/uppsrc/Painter/PaintPainting.cpp
index c4e84bb73..5ffdb76fd 100644
--- a/uppsrc/Painter/PaintPainting.cpp
+++ b/uppsrc/Painter/PaintPainting.cpp
@@ -227,8 +227,8 @@ void PaintImageBuffer(ImageBuffer& ib, const Painting& p, Size sz, Point pos)
 {
 	BufferPainter sw(ib);
 	Sizef psz = p.GetSize();
-	sw.Scale(sz.cx / psz.cx, sz.cy / psz.cy);
 	sw.Translate(-pos.x, -pos.y);
+	sw.Scale(sz.cx / psz.cx, sz.cy / psz.cy);
 	sw.Paint(p);
 }