mirror of https://github.com/axmolengine/axmol.git
323 lines
10 KiB
C++
323 lines
10 KiB
C++
/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "TG3.h"
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#include <string>
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NS_CC_BEGIN
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typedef std::basic_string<TUChar> stdTUString;
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class BitmapDC
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{
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public:
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BitmapDC()
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: m_pBmp(NULL)
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, m_pMemWnd(NULL)
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{
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}
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~BitmapDC(void)
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{
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prepareBitmap(0, 0);
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}
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bool setFont(const char * pFontName = NULL, int nSize = 0)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(! m_hFont.Create(0, (Int32)nSize));
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bRet = true;
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} while (0);
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return bRet;
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}
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bool getTextExtentPoint(TUChar* pszText, int nLen, TSize& tSize)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(! pszText);
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if (tSize.Width() > 0 && tSize.Height() > 0)
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{
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bRet = true;
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break;
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}
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int nLineCount = 0;
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int nWinWidth = 0;
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stdTUString FullString = pszText;
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if (tSize.Width() == 0)
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{
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// not specified the width,calculate the width and line count
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stdTUString strLeft = FullString;
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stdTUString strLine;
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while (strLeft.length() > 0)
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{
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int nPos = strLeft.find('\n');
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// get one line text
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if (nPos != stdTUString::npos)
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{
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strLine = strLeft.substr(0, nPos);
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strLeft = strLeft.substr(nPos + 1);
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}
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else
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{
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strLine = strLeft;
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strLeft.erase();
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}
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// calculate the width of current line and update the window width
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int nTempWidth = m_hFont.CharsWidth(strLine.c_str(), strLine.length() + 1);
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if (nTempWidth >= nWinWidth)
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{
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nWinWidth = nTempWidth;
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}
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// update the line count
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++nLineCount;
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}
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}
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else
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{
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// have specified the window width,calculate the line count
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nWinWidth = tSize.Width();
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stdTUString strLeft = FullString;
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int nCurPos = 0;
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do
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{
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nCurPos = m_hFont.WordWrap(strLeft.c_str(), nWinWidth);
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strLeft = strLeft.substr(nCurPos);
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++nLineCount;
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} while (strLeft.length() > 0);
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}
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// calculate the window height.
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tSize.SetHeight(nLineCount * m_hFont.LineHeight());
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tSize.SetWidth(nWinWidth);
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bRet = true;
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} while (0);
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return bRet;
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}
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bool prepareBitmap(int nWidth, int nHeight)
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{
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// release bitmap
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if (m_pBmp)
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{
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m_pBmp->Destroy();
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m_pBmp = NULL;
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}
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if (nWidth > 0 && nHeight > 0)
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{
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m_pBmp = TBitmap::Create(nWidth, nHeight, 32);
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if (! m_pBmp)
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{
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return false;
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}
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}
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return true;
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}
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int drawText(TUChar* pszText, int nLen, TSize& tSize, UInt32 style)
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{
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int nRet = 0;
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do
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{
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CC_BREAK_IF(! pszText);
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if (tSize.Width() <= 0 || tSize.Height() <= 0)
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{
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CC_BREAK_IF(! getTextExtentPoint(pszText, nLen, tSize));
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}
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CC_BREAK_IF(tSize.Width() <= 0 || tSize.Height() <= 0);
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CC_BREAK_IF(! prepareBitmap(tSize.Width(), tSize.Height()));
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Int32 nWidth = tSize.Width();
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Int32 nHeight = tSize.Height();
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// create memory window
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if (m_pMemWnd)
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{
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TRectangle rcMemWnd(0, 0, 0, 0);
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m_pMemWnd->GetClientBounds(&rcMemWnd);
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if (rcMemWnd.Width() < nWidth || rcMemWnd.Height() < nHeight)
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{
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m_pMemWnd->CloseWindow();
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m_pMemWnd = NULL;
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}
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}
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do
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{
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// if memory window is already break
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CC_BREAK_IF(m_pMemWnd);
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TApplication* pApp = TApplication::GetCurrentApplication();
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CC_BREAK_IF(! pApp || ! (m_pMemWnd = new TWindow(pApp)));
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Coord nCurrentWidth = pApp->GetScreenWidth();
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Coord nCurrentHeight = pApp->GetScreenHeight();
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Coord nMemWndW = (nWidth >= nCurrentWidth) ? nWidth : nCurrentWidth;
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Coord nMemWndH = (nHeight >= nCurrentHeight) ? nHeight : nCurrentHeight;
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CC_BREAK_IF(m_pMemWnd->CreateMemWindow(nMemWndW, nMemWndH,screenAlphaFormat));
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delete m_pMemWnd;
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m_pMemWnd = NULL;
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} while (0);
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CC_BREAK_IF(! m_pMemWnd);
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// create DC
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TDC dc(m_pMemWnd);
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// draw text
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m_pMemWnd->GetMemWindowTBitmapPtr()->Fill32(RGBA(0, 0, 0, 0), 0, 0, nWidth, nHeight);
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TRectangle rect(0, 0, nWidth, nHeight);
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dc.DrawTextInRectangleEx(pszText, 0, RGBA(255,255,255,255), RGBA(0,0,0,255), m_hFont, &rect, style);
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dc.ReadBitmap(m_pBmp, 0, 0);
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nRet = true;
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} while (0);
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return nRet;
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}
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CC_SYNTHESIZE_READONLY(TBitmap*, m_pBmp, Bitmap);
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private:
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TFont m_hFont;
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TWindow * m_pMemWnd;
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};
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static BitmapDC& sharedBitmapDC()
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{
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static BitmapDC s_BmpDC;
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return s_BmpDC;
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}
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bool CCImage::initWithString(
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const char * pText,
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int nWidth/* = 0*/,
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int nHeight/* = 0*/,
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ETextAlign eAlignMask/* = kAlignCenter*/,
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const char * pFontName/* = nil*/,
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int nSize/* = 0*/)
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{
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bool bRet = false;
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TUChar* pWText = NULL;
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do
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{
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CC_BREAK_IF(! pText);
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int nLen = strlen(pText) + 1;
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CC_BREAK_IF(! (pWText = new TUChar[nLen]));
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TUString::StrUtf8ToStrUnicode(pWText, (Char*)pText);
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BitmapDC& dc = sharedBitmapDC();
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dc.setFont(pFontName, nSize);
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TSize size(nWidth, nHeight);
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dc.getTextExtentPoint(pWText, nLen, size);
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CC_BREAK_IF(! size.Width() || ! size.Height());
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// set style
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UInt32 styles = GUI_API_STYLE_SPECIFY_FORE_COLOR | GUI_API_STYLE_ROP_MODE_TRANSPARENT |
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GUI_API_STYLE_CLIP_WORDWRAP | GUI_API_STYLE_SPECIFY_BACK_COLOR | GUI_API_STYLE_SPECIFY_FONT;
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switch (eAlignMask)
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{
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case kAlignCenter:
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styles |= GUI_API_STYLE_ALIGNMENT_CENTER | GUI_API_STYLE_ALIGNMENT_MIDDLE;
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break;
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case kAlignTop:
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styles |= GUI_API_STYLE_ALIGNMENT_CENTER | GUI_API_STYLE_ALIGNMENT_TOP;
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break;
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case kAlignTopRight:
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styles |= GUI_API_STYLE_ALIGNMENT_RIGHT | GUI_API_STYLE_ALIGNMENT_TOP;
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break;
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case kAlignRight:
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styles |= GUI_API_STYLE_ALIGNMENT_RIGHT | GUI_API_STYLE_ALIGNMENT_MIDDLE;
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break;
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case kAlignBottomRight:
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styles |= GUI_API_STYLE_ALIGNMENT_RIGHT | GUI_API_STYLE_ALIGNMENT_BOTTOM;
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break;
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case kAlignBottom:
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styles |= GUI_API_STYLE_ALIGNMENT_CENTER | GUI_API_STYLE_ALIGNMENT_BOTTOM;
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break;
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case kAlignBottomLeft:
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styles |= GUI_API_STYLE_ALIGNMENT_LEFT | GUI_API_STYLE_ALIGNMENT_BOTTOM;
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break;
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case kAlignLeft:
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styles |= GUI_API_STYLE_ALIGNMENT_LEFT | GUI_API_STYLE_ALIGNMENT_MIDDLE;
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break;
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case kAlignTopLeft:
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styles |= GUI_API_STYLE_ALIGNMENT_LEFT | GUI_API_STYLE_ALIGNMENT_TOP;
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}
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CC_BREAK_IF(! dc.drawText(pWText, nLen, size, styles));
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// init image information
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TBitmap * pBitmap = dc.getBitmap();
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CC_BREAK_IF(! pBitmap);
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INT32 nWidth = pBitmap->GetWidth();
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INT32 nHeight = pBitmap->GetHeight();
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CC_BREAK_IF(nWidth <= 0 || nHeight <= 0);
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INT32 nDataLen = pBitmap->GetRowBytes() * nHeight;
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m_pData = new unsigned char[nDataLen];
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CC_BREAK_IF(! m_pData);
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memcpy((void*) m_pData, pBitmap->GetDataPtr(), nDataLen);
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m_nWidth = (short)nWidth;
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m_nHeight = (short)nHeight;
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m_bHasAlpha = true;
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m_bPreMulti = true;
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m_nBitsPerComponent = pBitmap->GetDepth() / 4;
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bRet = true;
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} while (0);
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if (pWText)
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{
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delete [] pWText;
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pWText = NULL;
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}
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return bRet;
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}
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NS_CC_END;
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