C++的开源的按钮皮肤

// CxShadeButton.cpp : implementation file /** 12/05/2001 v1.00 * - ing.davide.pizzolato@libero.it ** 23/05/2001 v1.10 * - added text shift on button down * - fixed many CxDib bugs * - fixed SHS_HARDBUMP bug * - added icon support * - added text alignment * - added flat style ** 16/06/2001 v1.20 * - fixed keyboard shortcut bug * - check box & radio button add on by Rainer@Mangold.com * - 2nd icon & 2nd tooltip add on by Rainer@Mangold.com ** 03/08/2001 v1.30 * - fixed SetIcon bug * - added Font support ** 23/09/2001 v1.40 * - fixed memory leakage bug in DrawItem() (by David Scambler <dave@bmm.com.au>) * - fixed memory leakage bug in SetIcon() (by Orioli Alessandro <aorioli@temaweb.it>) * - fixed second tooltip initialization bug (by Jesper Kinn�s) * - added multiline tooltip support (thanks to Derek Lakin) * - fixed OnLButtonUp() problem with drag & drop. (by Hyeonsoo Jung <debussy2k@hanmail.net>) ** 28/10/2001 v1.41 * - fixed memory leakage bug in SetIcon() and in the destructor. * - added 3rd icon for highlighted state. */ #include "stdafx.h" #include "xShadeButton.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CxDib (under development) ///////////////////////////////////////////////////////////////////// CxDib::CxDib() { hDib=NULL; memset(&m_bi,0,sizeof(BITMAPINFOHEADER)); m_bi.biSize = sizeof(BITMAPINFOHEADER); m_LineWidth=0; m_nColors=0; } ///////////////////////////////////////////////////////////////////// CxDib::~CxDib() { if (hDib) free(hDib); } ///////////////////////////////////////////////////////////////////// bool CxDib::IsWin30Dib(){ return ((*(LPDWORD)(hDib))==sizeof(BITMAPINFOHEADER)); } ///////////////////////////////////////////////////////////////////// WORD CxDib::GetPaletteSize() { // if (IsWin30Dib()) return (m_nColors * sizeof(RGBQUAD)); // else return (m_nColors * sizeof(RGBTRIPLE)); } ///////////////////////////////////////////////////////////////////// BYTE* CxDib::GetBits() { if (hDib) return ((BYTE*)hDib + *(LPDWORD)hDib + GetPaletteSize()); return NULL; } ///////////////////////////////////////////////////////////////////// HDIB CxDib::Create(DWORD dwWidth, DWORD dwHeight, WORD wBitCount) { LPBITMAPINFOHEADER lpbi; // pointer to BITMAPINFOHEADER DWORD dwLen; // size of memory block if (hDib) free(hDib); hDib=NULL; // Make sure bits per pixel is valid if (wBitCount <= 1) wBitCount = 1; else if (wBitCount <= 4) wBitCount = 4; else if (wBitCount <= 8) wBitCount = 8; else wBitCount = 24; switch (wBitCount){ case 1: m_nColors = 2; break; case 4: m_nColors = 16; break; case 8: m_nColors = 256; break; default: m_nColors = 0; } m_LineWidth = WIDTHBYTES(wBitCount * dwWidth); // initialize BITMAPINFOHEADER m_bi.biSize = sizeof(BITMAPINFOHEADER); m_bi.biWidth = dwWidth; // fill in width from parameter m_bi.biHeight = dwHeight; // fill in height from parameter m_bi.biPlanes = 1; // must be 1 m_bi.biBitCount = wBitCount; // from parameter m_bi.biCompression = BI_RGB; m_bi.biSizeImage = m_LineWidth * dwHeight; m_bi.biXPelsPerMeter = 0; m_bi.biYPelsPerMeter = 0; m_bi.biClrUsed = 0; m_bi.biClrImportant = 0; // calculate size of memory block required to store the DIB. This // block should be big enough to hold the BITMAPINFOHEADER, the color // table, and the bits dwLen = GetSize(); //hDib = malloc(dwLen); // alloc memory block to store our bitmap hDib = new (HDIB[dwLen]); //fixes allocation problem under Win2k if (!hDib) return NULL; // use our bitmap info structure to fill in first part of // our DIB with the BITMAPINFOHEADER lpbi = (LPBITMAPINFOHEADER)(hDib); *lpbi = m_bi; return hDib; //return handle to the DIB } ///////////////////////////////////////////////////////////////////// long CxDib::Draw(HDC pDC, long xoffset, long yoffset) { if((hDib)&&(pDC)) { //palette must be correctly filled LPSTR lpDIB = (char*)hDib; //set image to hdc... SetStretchBltMode(pDC,COLORONCOLOR); SetDIBitsToDevice(pDC, xoffset, yoffset, m_bi.biWidth, m_bi.biHeight, 0, 0, 0, m_bi.biHeight, GetBits(), (BITMAPINFO*)lpDIB, DIB_RGB_COLORS); return 1; } return 0; } ///////////////////////////////////////////////////////////////////// long CxDib::Stretch(HDC pDC, long xoffset, long yoffset, long xsize, long ysize) { if((hDib)&&(pDC)) { //palette must be correctly filled LPSTR lpDIB = (char*)hDib; //set image to hdc... SetStretchBltMode(pDC,COLORONCOLOR); StretchDIBits(pDC, xoffset, yoffset, xsize, ysize, 0, 0, m_bi.biWidth, m_bi.biHeight, GetBits(),(BITMAPINFO*)lpDIB,DIB_RGB_COLORS,SRCCOPY); return 1; } return 0; } ///////////////////////////////////////////////////////////////////// void CxDib::SetPaletteIndex(BYTE idx, BYTE r, BYTE g, BYTE b) { if ((hDib)&&(m_nColors)){ BYTE* iDst = (BYTE*)(hDib) + sizeof(BITMAPINFOHEADER); if ((idx>=0)&&(idx<m_nColors)){ long ldx=idx*sizeof(RGBQUAD); iDst[ldx++] = (BYTE) b; iDst[ldx++] = (BYTE) g; iDst[ldx++] = (BYTE) r; iDst[ldx] = (BYTE) 0; } } } ///////////////////////////////////////////////////////////////////// void CxDib::SetPaletteIndex(BYTE idx, RGBQUAD c) { if ((hDib)&&(m_nColors)){ BYTE* iDst = (BYTE*)(hDib) + sizeof(BITMAPINFOHEADER); if ((idx>=0)&&(idx<m_nColors)){ long ldx=idx*sizeof(RGBQUAD); iDst[ldx++] = (BYTE) c.rgbBlue; iDst[ldx++] = (BYTE) c.rgbGreen; iDst[ldx++] = (BYTE) c.rgbRed; iDst[ldx] = (BYTE) 0; } } } ///////////////////////////////////////////////////////////////////// void CxDib::SetPaletteIndex(BYTE idx, COLORREF cr) { if ((hDib)&&(m_nColors)){ BYTE* iDst = (BYTE*)(hDib) + sizeof(BITMAPINFOHEADER); if ((idx>=0)&&(idx<m_nColors)){ long ldx=idx*sizeof(RGBQUAD); iDst[ldx++] = (BYTE) GetBValue(cr); iDst[ldx++] = (BYTE) GetGValue(cr); iDst[ldx++] = (BYTE) GetRValue(cr); iDst[ldx] = (BYTE) 0; } } } ///////////////////////////////////////////////////////////////////// RGBQUAD CxDib::GetPaletteIndex(BYTE idx) { RGBQUAD rgb = {0,0,0,0}; if ((hDib)&&(m_nColors)){ BYTE* iDst = (BYTE*)(hDib) + sizeof(BITMAPINFOHEADER); if ((idx>=0)&&(idx<m_nColors)){ long ldx=idx*sizeof(RGBQUAD); rgb.rgbBlue = iDst[ldx++]; rgb.rgbGreen=iDst[ldx++]; rgb.rgbRed =iDst[ldx]; rgb.rgbReserved = 0; } } return rgb; } ///////////////////////////////////////////////////////////////////// BYTE CxDib::GetPixelIndex(long x,long y) { if ((hDib==NULL)||(m_nColors==0)|| (x<0)||(y<0)||(x>=m_bi.biWidth)||(y>=m_bi.biHeight)) return 0; BYTE* iDst = GetBits(); return iDst[(m_bi.biHeight - y - 1)*m_LineWidth + x]; } ///////////////////////////////////////////////////////////////////// RGBQUAD CxDib::GetPixelColor(long x,long y) { RGBQUAD rgb={0,0,0,0}; if ((hDib==NULL)||(x<0)||(y<0)|| (x>=m_bi.biWidth)||(y>=m_bi.biHeight)) return rgb; if (m_nColors) return GetPaletteIndex(GetPixelIndex(x,y)); else { BYTE* iDst = GetBits()+(m_bi.biHeight - y - 1)*m_LineWidth + x*sizeof(RGBQUAD); rgb.rgbBlue = *iDst++; rgb.rgbGreen= *iDst++; rgb.rgbRed =*iDst; return rgb; } } ///////////////////////////////////////////////////////////////////// void CxDib::SetPixelIndex(long x,long y,BYTE i) { if ((hDib==NULL)||(m_nColors==0)|| (x<0)||(y<0)||(x>=m_bi.biWidth)||(y>=m_bi.biHeight)) return ; BYTE* iDst = GetBits(); iDst[(m_bi.biHeight - y - 1)*m_LineWidth + x]=i; } /////////