axmol/cocos2dx/platform/bada/CCImage_bada.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include <FBase.h>
#include <FGraphics.h>

using namespace Osp::Base;
using namespace Osp::Base::Collection;
using namespace Osp::Graphics;


NS_CC_BEGIN;

/**
@brief	A memory DC which uses to draw text on bitmap.
*/
class BitmapDC
{
public:
	BitmapDC()
	{
		m_pCanvas = NULL;
		m_pEnrichedText = NULL;
	}

	~BitmapDC()
	{
		CC_SAFE_DELETE(m_pCanvas);
	}

	bool drawText(const char * pszText, Dimension& dimensions, CCImage::ETextAlign alignment, const char * fontName = NULL, int fontSize = 0)
	{
		bool nRet = false;
		do 
		{
			CC_BREAK_IF(pszText == NULL || strlen(pszText) <= 0);
			// text
			Osp::Base::String strText(pszText);
			// Set a font to the TextElement
			Font font;
			bool bUseDefaultFont = true;
			if (fontName != NULL && strlen(fontName) > 0)
			{
				String strFonName(fontName);
				if (strFonName.EndsWith(".ttf") || strFonName.EndsWith(".TTF"))
				{
					bUseDefaultFont = false;
					const char* pFullFontPath = CCFileUtils::fullPathFromRelativePath(fontName);
					font.Construct(pFullFontPath, FONT_STYLE_PLAIN, fontSize);
				}
				else
				{
					IList* pSystemFontList = Font::GetSystemFontListN();
					if (pSystemFontList != NULL)
					{
						IEnumerator* pEnum = pSystemFontList->GetEnumeratorN();
						Object* pObj = null;
						while (pEnum->MoveNext() == E_SUCCESS)
						{
							pObj = pEnum->GetCurrent();
							String* pStrName = static_cast<String*>(pObj);
							if (pStrName->Equals(strFonName, false))
							{
								bUseDefaultFont = false;
								font.Construct(*pStrName, FONT_STYLE_PLAIN, fontSize);
								break;
							}
						}

						delete pEnum;

						pSystemFontList->RemoveAll(true);
						delete pSystemFontList;
					}
				}
			}

			if (bUseDefaultFont)
			{
				font.Construct(FONT_STYLE_PLAIN, fontSize);
			}

			// calculate text size
			if (dimensions.width <= 0)
			{
				Dimension dim;
				font.GetTextExtent(strText, strText.GetLength(), dim);
				dimensions.width = dim.width;
				dimensions.height = dim.height;
			}

			CC_BREAK_IF(dimensions.width <= 0);

			// Create an EnrichedText
			m_pEnrichedText = new EnrichedText();
			m_pEnrichedText->Construct(Dimension(dimensions.width, 10));

			switch (alignment)
			{
			case CCImage::kAlignCenter:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_CENTER);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_MIDDLE);
				break;
			case CCImage::kAlignTop:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_CENTER);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_TOP);
				break;
			case CCImage::kAlignTopRight:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_RIGHT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_TOP);
				break;
			case CCImage::kAlignRight:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_RIGHT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_MIDDLE);
				break;
			case CCImage::kAlignBottomRight:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_RIGHT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_BOTTOM);
				break;
			case CCImage::kAlignBottom:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_CENTER);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_BOTTOM);
				break;
			case CCImage::kAlignBottomLeft:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_LEFT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_BOTTOM);
				break;
			case CCImage::kAlignLeft:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_LEFT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_MIDDLE);
				break;
			case CCImage::kAlignTopLeft:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_LEFT);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_TOP);
				break;
			default:
				m_pEnrichedText->SetHorizontalAlignment(TEXT_ALIGNMENT_CENTER);
				m_pEnrichedText->SetVerticalAlignment(TEXT_ALIGNMENT_MIDDLE);
				break;
			}
			// Set attributes of the EnrichedText
			m_pEnrichedText->SetTextWrapStyle(TEXT_WRAP_CHARACTER_WRAP);
			m_pEnrichedText->SetTextAbbreviationEnabled(true);

			// Create a TextElement
			TextElement* pTextElement = new TextElement();
			pTextElement->Construct(strText);
			// After Adding, set attributes of the TextElement
			pTextElement->SetTextColor(Color::COLOR_WHITE);
			pTextElement->SetFont(font);
			// Add the TextElement to the EnrichedText
			m_pEnrichedText->Add(*pTextElement);

			m_pEnrichedText->Refresh();
			dimensions.height = m_pEnrichedText->GetTotalLineHeight();
			m_pEnrichedText->SetSize(dimensions.width, dimensions.height);

			CC_SAFE_DELETE(m_pCanvas);
			m_pCanvas = new Canvas();
			m_pCanvas->Construct(Rectangle(0, 0, dimensions.width, dimensions.height));
			m_pCanvas->DrawText(Point(0, 0), *m_pEnrichedText);

			m_pEnrichedText->RemoveAllTextElements(true);
			CC_SAFE_DELETE(m_pEnrichedText);

			nRet = true;
		} while (0);
		return nRet;
	}
private:
	friend class CCImage;
	Canvas* m_pCanvas;
	EnrichedText* m_pEnrichedText;
	std::string m_curFontPath;
};

static BitmapDC& sharedBitmapDC()
{
	static BitmapDC s_BmpDC;
	return s_BmpDC;
}

bool CCImage::initWithString(
                               const char *    pText,
                               int             nWidth/* = 0*/,
                               int             nHeight/* = 0*/,
                               ETextAlign      eAlignMask/* = kAlignCenter*/,
                               const char *    pFontName/* = nil*/,
                               int             nSize/* = 0*/)
{
    bool bRet = false;
    result r = E_FAILURE;
	do
	{
		int nLen = 0;
		CC_BREAK_IF(! pText);       

		BitmapDC& dc = sharedBitmapDC();

		Dimension size(nWidth, nHeight);

		bRet = dc.drawText(pText, size, eAlignMask, pFontName, nSize);

		CC_BREAK_IF(!bRet);

		BufferInfo bufferInfo;
		r = dc.m_pCanvas->Lock(bufferInfo);
		CC_BREAK_IF(IsFailed(r));

		nLen = bufferInfo.pitch * bufferInfo.height;
		CC_SAFE_DELETE(m_pData);
		m_pData = new unsigned char [nLen];
		memset(m_pData, 0, nLen);
		CC_BREAK_IF(!m_pData);
		memcpy(m_pData, bufferInfo.pPixels, nLen);

		int iBytesPerPixel = bufferInfo.bitsPerPixel/8;

		m_nWidth = bufferInfo.pitch / iBytesPerPixel;
		m_nHeight = bufferInfo.height;
		m_bHasAlpha	= true;
		m_bPreMulti = false;
		m_nBitsPerComponent = 8;
		dc.m_pCanvas->Unlock();

		bRet = true;
	} while (0);

    return bRet;
}

NS_CC_END;