mirror of https://github.com/axmolengine/axmol.git
507 lines
16 KiB
C++
507 lines
16 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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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 "platform/CCPlatformConfig.h"
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#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
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#include "platform/CCDevice.h"
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#include "platform/CCFileUtils.h"
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#include "platform/CCStdC.h"
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NS_CC_BEGIN
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int Device::getDPI()
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{
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static int dpi = -1;
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if (dpi == -1)
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{
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HDC hScreenDC = GetDC( nullptr );
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int PixelsX = GetDeviceCaps( hScreenDC, HORZRES );
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int MMX = GetDeviceCaps( hScreenDC, HORZSIZE );
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ReleaseDC( nullptr, hScreenDC );
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dpi = 254.0f*PixelsX/MMX/10;
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}
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return dpi;
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}
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void Device::setAccelerometerEnabled(bool isEnabled)
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{}
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void Device::setAccelerometerInterval(float interval)
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{}
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class BitmapDC
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{
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public:
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BitmapDC(HWND hWnd = nullptr)
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: _DC(nullptr)
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, _bmp(nullptr)
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, _font((HFONT)GetStockObject(DEFAULT_GUI_FONT))
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, _wnd(nullptr)
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{
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_wnd = hWnd;
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HDC hdc = GetDC(hWnd);
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_DC = CreateCompatibleDC(hdc);
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ReleaseDC(hWnd, hdc);
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}
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~BitmapDC()
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{
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prepareBitmap(0, 0);
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if (_DC)
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{
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DeleteDC(_DC);
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}
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removeCustomFont();
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}
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wchar_t * utf8ToUtf16(const std::string& str)
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{
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wchar_t * pwszBuffer = nullptr;
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do
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{
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if (str.empty())
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{
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break;
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}
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// utf-8 to utf-16
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int nLen = str.size();
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int nBufLen = nLen + 1;
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pwszBuffer = new wchar_t[nBufLen];
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CC_BREAK_IF(! pwszBuffer);
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memset(pwszBuffer,0,nBufLen);
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nLen = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), nLen, pwszBuffer, nBufLen);
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pwszBuffer[nLen] = '\0';
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} while (0);
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return pwszBuffer;
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}
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bool setFont(const char * pFontName = "", 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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std::string fontName = pFontName;
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std::string fontPath;
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HFONT hDefFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
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LOGFONTA tNewFont = {0};
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LOGFONTA tOldFont = {0};
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GetObjectA(hDefFont, sizeof(tNewFont), &tNewFont);
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if (!fontName.empty())
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{
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// create font from ttf file
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if (FileUtils::getInstance()->getFileExtension(fontName) == ".ttf")
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{
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fontPath = FileUtils::getInstance()->fullPathForFilename(fontName.c_str());
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int nFindPos = fontName.rfind("/");
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fontName = &fontName[nFindPos+1];
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nFindPos = fontName.rfind(".");
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fontName = fontName.substr(0,nFindPos);
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}
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else
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{
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auto nFindPos = fontName.rfind("/");
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if (nFindPos != fontName.npos)
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{
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if (fontName.length() == nFindPos + 1)
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{
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fontName = "";
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}
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else
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{
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fontName = &fontName[nFindPos+1];
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}
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}
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}
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tNewFont.lfCharSet = DEFAULT_CHARSET;
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strcpy_s(tNewFont.lfFaceName, LF_FACESIZE, fontName.c_str());
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}
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if (nSize)
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{
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tNewFont.lfHeight = -nSize;
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}
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GetObjectA(_font, sizeof(tOldFont), &tOldFont);
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if (tOldFont.lfHeight == tNewFont.lfHeight
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&& 0 == strcmp(tOldFont.lfFaceName, tNewFont.lfFaceName))
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{
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// already has the font
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bRet = true;
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break;
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}
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// delete old font
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removeCustomFont();
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if (fontPath.size() > 0)
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{
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_curFontPath = fontPath;
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wchar_t * pwszBuffer = utf8ToUtf16(_curFontPath);
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if (pwszBuffer)
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{
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if(AddFontResource(pwszBuffer))
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{
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SendMessage( _wnd, WM_FONTCHANGE, 0, 0);
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}
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delete [] pwszBuffer;
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pwszBuffer = nullptr;
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}
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}
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_font = nullptr;
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// disable Cleartype
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tNewFont.lfQuality = ANTIALIASED_QUALITY;
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// create new font
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_font = CreateFontIndirectA(&tNewFont);
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if (! _font)
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{
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// create failed, use default font
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_font = hDefFont;
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break;
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}
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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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SIZE sizeWithText(const wchar_t * pszText, int nLen, DWORD dwFmt, LONG nWidthLimit)
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{
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SIZE tRet = {0};
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do
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{
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CC_BREAK_IF(! pszText || nLen <= 0);
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RECT rc = {0, 0, 0, 0};
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DWORD dwCalcFmt = DT_CALCRECT;
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if (nWidthLimit > 0)
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{
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rc.right = nWidthLimit;
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dwCalcFmt |= DT_WORDBREAK
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| (dwFmt & DT_CENTER)
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| (dwFmt & DT_RIGHT);
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}
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// use current font to measure text extent
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HGDIOBJ hOld = SelectObject(_DC, _font);
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// measure text size
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DrawTextW(_DC, pszText, nLen, &rc, dwCalcFmt);
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SelectObject(_DC, hOld);
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tRet.cx = rc.right;
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tRet.cy = rc.bottom;
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} while (0);
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return tRet;
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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 (_bmp)
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{
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DeleteObject(_bmp);
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_bmp = nullptr;
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}
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if (nWidth > 0 && nHeight > 0)
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{
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_bmp = CreateBitmap(nWidth, nHeight, 1, 32, nullptr);
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if (! _bmp)
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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(const char * pszText, SIZE& tSize, Device::TextAlign eAlign)
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{
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int nRet = 0;
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wchar_t * pwszBuffer = nullptr;
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wchar_t* fixedText = nullptr;
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do
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{
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CC_BREAK_IF(! pszText);
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DWORD dwFmt = DT_WORDBREAK;
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DWORD dwHoriFlag = (int)eAlign & 0x0f;
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DWORD dwVertFlag = ((int)eAlign & 0xf0) >> 4;
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switch (dwHoriFlag)
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{
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case 1: // left
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dwFmt |= DT_LEFT;
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break;
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case 2: // right
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dwFmt |= DT_RIGHT;
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break;
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case 3: // center
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dwFmt |= DT_CENTER;
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break;
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}
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int nLen = strlen(pszText);
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// utf-8 to utf-16
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int nBufLen = nLen + 1;
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pwszBuffer = new wchar_t[nBufLen];
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CC_BREAK_IF(! pwszBuffer);
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memset(pwszBuffer, 0, sizeof(wchar_t)*nBufLen);
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nLen = MultiByteToWideChar(CP_UTF8, 0, pszText, nLen, pwszBuffer, nBufLen);
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if (strchr(pszText, '&'))
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{
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fixedText = new wchar_t[nLen * 2 + 1];
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int fixedIndex = 0;
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for (int index = 0; index < nLen; ++index)
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{
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if (pwszBuffer[index] == '&')
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{
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fixedText[fixedIndex] = '&';
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fixedText[fixedIndex + 1] = '&';
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fixedIndex += 2;
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}
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else
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{
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fixedText[fixedIndex] = pwszBuffer[index];
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fixedIndex += 1;
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}
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}
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fixedText[fixedIndex] = '\0';
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nLen = fixedIndex;
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}
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SIZE newSize;
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if (fixedText)
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{
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newSize = sizeWithText(fixedText, nLen, dwFmt, tSize.cx);
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}
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else
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{
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newSize = sizeWithText(pwszBuffer, nLen, dwFmt, tSize.cx);
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}
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RECT rcText = {0};
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// if content width is 0, use text size as content size
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if (tSize.cx <= 0)
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{
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tSize = newSize;
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rcText.right = newSize.cx;
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rcText.bottom = newSize.cy;
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}
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else
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{
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LONG offsetX = 0;
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LONG offsetY = 0;
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rcText.right = newSize.cx; // store the text width to rectangle
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// calculate text horizontal offset
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if (1 != dwHoriFlag // and text isn't align to left
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&& newSize.cx < tSize.cx) // and text's width less then content width,
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{ // then need adjust offset of X.
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offsetX = (2 == dwHoriFlag) ? tSize.cx - newSize.cx // align to right
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: (tSize.cx - newSize.cx) / 2; // align to center
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}
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// if content height is 0, use text height as content height
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// else if content height less than text height, use content height to draw text
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if (tSize.cy <= 0)
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{
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tSize.cy = newSize.cy;
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dwFmt |= DT_NOCLIP;
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rcText.bottom = newSize.cy; // store the text height to rectangle
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}
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else if (tSize.cy < newSize.cy)
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{
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// content height larger than text height need, clip text to rect
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rcText.bottom = tSize.cy;
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}
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else
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{
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rcText.bottom = newSize.cy; // store the text height to rectangle
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// content larger than text, need adjust vertical position
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dwFmt |= DT_NOCLIP;
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// calculate text vertical offset
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offsetY = (2 == dwVertFlag) ? tSize.cy - newSize.cy // align to bottom
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: (3 == dwVertFlag) ? (tSize.cy - newSize.cy) / 2 // align to middle
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: 0; // align to top
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}
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if (offsetX || offsetY)
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{
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OffsetRect(&rcText, offsetX, offsetY);
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}
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}
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CC_BREAK_IF(! prepareBitmap(tSize.cx, tSize.cy));
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// draw text
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HGDIOBJ hOldFont = SelectObject(_DC, _font);
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HGDIOBJ hOldBmp = SelectObject(_DC, _bmp);
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SetBkMode(_DC, TRANSPARENT);
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SetTextColor(_DC, RGB(255, 255, 255)); // white color
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// draw text
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if (fixedText)
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{
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nRet = DrawTextW(_DC, fixedText, nLen, &rcText, dwFmt);
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}
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else
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{
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nRet = DrawTextW(_DC, pwszBuffer, nLen, &rcText, dwFmt);
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}
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//DrawTextA(_DC, pszText, nLen, &rcText, dwFmt);
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SelectObject(_DC, hOldBmp);
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SelectObject(_DC, hOldFont);
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} while (0);
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CC_SAFE_DELETE_ARRAY(pwszBuffer);
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delete[] fixedText;
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return nRet;
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}
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CC_SYNTHESIZE_READONLY(HDC, _DC, DC);
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CC_SYNTHESIZE_READONLY(HBITMAP, _bmp, Bitmap);
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private:
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friend class Image;
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HFONT _font;
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HWND _wnd;
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std::string _curFontPath;
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void removeCustomFont()
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{
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HFONT hDefFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
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if (hDefFont != _font)
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{
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DeleteObject(_font);
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_font = hDefFont;
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}
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// release temp font resource
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if (_curFontPath.size() > 0)
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{
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wchar_t * pwszBuffer = utf8ToUtf16(_curFontPath);
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if (pwszBuffer)
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{
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RemoveFontResource(pwszBuffer);
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SendMessage( _wnd, WM_FONTCHANGE, 0, 0);
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delete [] pwszBuffer;
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pwszBuffer = nullptr;
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}
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_curFontPath.clear();
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}
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}
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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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Data Device::getTextureDataForText(const char * text, const FontDefinition& textDefinition, TextAlign align, int &width, int &height, bool& hasPremultipliedAlpha)
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{
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Data ret;
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do
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{
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BitmapDC& dc = sharedBitmapDC();
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if (! dc.setFont(textDefinition._fontName.c_str(), textDefinition._fontSize))
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{
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log("Can't found font(%s), use system default", textDefinition._fontName.c_str());
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}
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// draw text
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// does changing to SIZE here affects the font size by rounding from float?
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SIZE size = {(LONG) textDefinition._dimensions.width,(LONG) textDefinition._dimensions.height};
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CC_BREAK_IF(! dc.drawText(text, size, align));
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int dataLen = size.cx * size.cy * 4;
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unsigned char* dataBuf = (unsigned char*)malloc(sizeof(unsigned char) * dataLen);
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CC_BREAK_IF(! dataBuf);
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struct
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{
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BITMAPINFOHEADER bmiHeader;
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int mask[4];
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} bi = {0};
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bi.bmiHeader.biSize = sizeof(bi.bmiHeader);
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CC_BREAK_IF(! GetDIBits(dc.getDC(), dc.getBitmap(), 0, 0,
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nullptr, (LPBITMAPINFO)&bi, DIB_RGB_COLORS));
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width = (short)size.cx;
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height = (short)size.cy;
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// copy pixel data
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bi.bmiHeader.biHeight = (bi.bmiHeader.biHeight > 0)
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? - bi.bmiHeader.biHeight : bi.bmiHeader.biHeight;
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GetDIBits(dc.getDC(), dc.getBitmap(), 0, height, dataBuf,
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(LPBITMAPINFO)&bi, DIB_RGB_COLORS);
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COLORREF textColor = (textDefinition._fontFillColor.b << 16 | textDefinition._fontFillColor.g << 8 | textDefinition._fontFillColor.r) & 0x00ffffff;
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float alpha = textDefinition._fontAlpha / 255.0f;
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COLORREF * pPixel = nullptr;
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for (int y = 0; y < height; ++y)
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{
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pPixel = (COLORREF *)dataBuf + y * width;
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for (int x = 0; x < width; ++x)
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{
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COLORREF& clr = *pPixel;
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clr = ((BYTE)(GetRValue(clr) * alpha) << 24) | textColor;
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++pPixel;
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}
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}
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ret.fastSet(dataBuf,dataLen);
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hasPremultipliedAlpha = false;
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} while (0);
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return ret;
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}
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void Device::setKeepScreenOn(bool value)
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{
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CC_UNUSED_PARAM(value);
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}
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void Device::vibrate(float duration)
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{
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CC_UNUSED_PARAM(duration);
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}
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NS_CC_END
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#endif // CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
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