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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#include <fntstore.h>
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#include <bitmap.h>
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#include <bitstd.h>
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#include <bitdev.h>
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#include "BITPANIC.H"
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#include <bitdraw.h>
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#include <graphics/fbsrasterizer.h>
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/**
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Draws and fills a rectangle with rounded corners.
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The function provides a concrete implementation of the pure virtual
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function <code>CGraphicsContext::DrawRoundRect()</code>. The function
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behaviour is the same as documented in that class.
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*/
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EXPORT_C void CFbsBitGc::DrawRoundRect(const TRect& aRect,const TSize& aSize)
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{
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if (CheckDevice(aRect))
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return;
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TSize ellsize(aSize);
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ellsize.iWidth <<= 1;
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ellsize.iHeight <<= 1;
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if (ellsize.iWidth < 3 || ellsize.iHeight < 3)
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{
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DrawRect(aRect);
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return;
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}
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if (aRect.Width() < ellsize.iWidth && aRect.Height() < ellsize.iHeight)
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{
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DrawEllipse(aRect);
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return;
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}
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TRect rcpy(aRect);
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rcpy.Move(iOrigin);
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iDevice->TruncateRect(rcpy);
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ellsize.iWidth = Min(rcpy.Width(),ellsize.iWidth);
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ellsize.iHeight = Min(rcpy.Height(),ellsize.iHeight);
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TRect clippedBoundingRect(rcpy);
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clippedBoundingRect.Grow((iPenSize.iWidth >> 1) + 1,(iPenSize.iHeight >> 1) + 1);
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if (!clippedBoundingRect.Intersects(iUserClipRect))
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return;
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SetupDevice();
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iDevice->DrawingBegin(&iBrushBitmap);
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CFbsRasterizer* brushRasterizer = PrepareRasterizerForExtendedBitmap(iBrushBitmap);
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if (iBrushStyle != ENullBrush)
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RoundRectFill(rcpy,ellsize);
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if (iPenStyle != ENullPen && iPenSize.iWidth > 0 && iPenSize.iHeight > 0)
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RoundRectOutline(rcpy,ellsize);
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if (brushRasterizer)
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{
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brushRasterizer->EndBitmap(iBrushBitmap.SerialNumber());
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}
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iDevice->DrawingEnd(&iBrushBitmap);
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}
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// if iBrushBitmap is an extended bitmap, PrepareRasterizerForExtendedBitmap() must have been called before this method
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void CFbsBitGc::RoundRectFill(const TRect& aRect,TSize aSize)
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{
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TRect rcpy(aRect);
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if (iPenSize.iWidth < 1 || iPenSize.iHeight < 1)
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rcpy.Grow(1,1);
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AddRect(rcpy);
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if (rcpy.iBr.iX - rcpy.iTl.iX < aSize.iWidth)
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aSize.iWidth = rcpy.Width();
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if (rcpy.iBr.iY - rcpy.iTl.iY < aSize.iHeight)
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aSize.iHeight = rcpy.Height();
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TInt xoff = rcpy.Width() - aSize.iWidth;
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TInt yoff = rcpy.Height() - aSize.iHeight;
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TPoint tl,tr,bl,br;
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TInt prevlev = 0;
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TBool draw = EFalse;
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const TInt limit = iDefaultRegionPtr->Count();
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for (TInt count = 0; count < limit; count++)
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{
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iClipRect = (*iDefaultRegionPtr)[count];
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if (UserClipRect(iClipRect))
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continue;
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if (!iClipRect.Intersects(aRect))
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continue;
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draw = ETrue;
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iClipRect.Intersection(aRect);
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TEllipse ellipse;
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ellipse.Construct(TRect(rcpy.iTl,rcpy.iTl + aSize));
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ellipse.SingleStep(tl,tr,bl,br);
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prevlev = tl.iY;
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while (!ellipse.SingleStep(tl,tr,bl,br))
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{
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if (tl.iY == prevlev)
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continue;
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tl.iX++;
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tr.iX += xoff - 1;
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bl.iX++;
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bl.iY += yoff;
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br.iX += xoff - 1;
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br.iY += yoff;
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ClipFillLine(tl,tr);
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ClipFillLine(bl,br);
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prevlev = tl.iY;
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}
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iDevice->iDrawDevice->UpdateRegion(iClipRect);
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}
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if (!draw)
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return;
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if (tl.iY >= bl.iY)
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{
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tl.iY--;
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br.iY++;
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}
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tl.iX++;
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tl.iY++;
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br.iX += xoff;
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br.iY += yoff;
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RectFill(TRect(tl,br));
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}
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void CFbsBitGc::RoundRectOutline(const TRect& aRect,TSize aSize)
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{
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TRect rcpy(aRect);
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const TInt halfpenwidth = (iPenSize.iWidth + 1) >> 1;
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const TInt halfpenheight = (iPenSize.iWidth + 1) >> 1;
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rcpy.Grow(halfpenwidth,halfpenheight);
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AddRect(rcpy);
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if (aRect.Width() < aSize.iWidth)
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aSize.iWidth = aRect.Width();
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if (aRect.Height() < aSize.iHeight)
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aSize.iHeight = aRect.Height();
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TPoint tl,tr,bl,br;
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const TInt xoff = aRect.Width() - aSize.iWidth;
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const TInt yoff = aRect.Height() - aSize.iHeight;
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const TInt dotparam = iDotParam;
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const TInt limit = iDefaultRegionPtr->Count();
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for (TInt count = 0; count < limit; count++)
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{
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iClipRect = (*iDefaultRegionPtr)[count];
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if (!iClipRect.Intersects(rcpy))
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continue;
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iClipRect.Intersection(rcpy);
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if (UserClipRect(iClipRect))
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continue;
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iDotParam = Max(iPenSize.iWidth >> 1,iPenSize.iHeight >> 1);
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TInt column = aRect.iTl.iX + (aSize.iWidth >> 1);
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TInt lastcolumn = aRect.iTl.iX + xoff + (aSize.iWidth >> 1);
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for (; column < lastcolumn; column++)
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{
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PenDrawClipped(TPoint(column,aRect.iTl.iY));
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PenDrawClipped(TPoint(column,aRect.iBr.iY - 1));
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iDotParam += iDotDirection;
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}
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TEllipse ellipse;
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ellipse.Construct(TRect(aRect.iTl,aRect.iTl + aSize));
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while (!ellipse.SingleStep(tl,tr,bl,br))
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{
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tr.iX += xoff;
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bl.iY += yoff;
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br.iX += xoff;
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br.iY += yoff;
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PenDrawClipped(tl);
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PenDrawClipped(tr);
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PenDrawClipped(bl);
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PenDrawClipped(br);
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iDotParam += iDotDirection;
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}
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if (tl.iY >= bl.iY)
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{
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tl.iY--;
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bl.iY++;
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}
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bl.iY += yoff;
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for (column = tl.iY + 1; column < bl.iY; column++)
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{
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PenDrawClipped(TPoint(aRect.iTl.iX,column));
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PenDrawClipped(TPoint(aRect.iBr.iX - 1,column));
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iDotParam += iDotDirection;
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}
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iDevice->iDrawDevice->UpdateRegion(iClipRect);
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}
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iDotParam = dotparam;
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}
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