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作者：刘涛 来源：天极开发 2007年10月16日
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| ////////////////////////////////////////// ColorPicker.h : header file #if !defined(AFX_COLORPICKER_H__52F28BCF_DBD4_49A1_8293_1B7FBFB8735D__INCLUDED_) #define AFX_COLORPICKER_H__52F28BCF_DBD4_49A1_8293_1B7FBFB8735D__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 class CColorPicker : public CButton { // Construction public: CColorPicker(); virtual ~CColorPicker(); // Attributes public: // Operations public: void SetColor(COLORREF ref); void SetBuddy(HWND hWnd); COLORREF GetColor(); void GetColor(CString& strColor); // Overrides // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CColorPicker) public: virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); protected: virtual LRESULT DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam); //}}AFX_VIRTUAL // Implementation private: void DestroyPaletteWindow(); BOOL CreatePaletteWindow(); static LONG FAR PASCAL PaletteWndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam); // Generated message map functions protected: //{{AFX_MSG(CColorPicker) afx_msg BOOL OnEraseBkgnd(CDC* pDC); afx_msg void OnLButtonDown(UINT nFlags, CPoint point); afx_msg void OnLButtonUp(UINT nFlags, CPoint point); afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message); //}}AFX_MSG DECLARE_MESSAGE_MAP() private: HWND m_hwndBuddy; COLORREF m_CurrentColor; HWND m_hPaletteWnd; BOOL m_bPaletteWndActive; HCURSOR m_hCursorStraw; }; /////////////////////////////////////////////////////////// CColorPicker //{{AFX_INSERT_LOCATION}} // Microsoft Visual C++ will insert additional declarations immediately before the previous line. #endif // !defined(AFX_COLORPICKER_H__52F28BCF_DBD4_49A1_8293_1B7FBFB8735D__INCLUDED_) #include "stdafx.h" #include "ColorPicker.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif #define LPARAM_X(lp) ((int)(short)LOWORD(lp)) #define LPARAM_Y(lp) ((int)(short)HIWORD(lp)) //自定义消息 #define WM_SETCOLOR WM_USER+1 #define WM_COLORDLG WM_USER+2 #define IDC_COLORDLG_BUTTON 100 //设置3D效果、白色、黑色画笔； CPen _pen3DDKShadow(PS_SOLID,1,::GetSysColor(COLOR_3DDKSHADOW)); CPen _penW(PS_SOLID,1,RGB(0xff,0xff,0xff)); CPen _penB(PS_SOLID,1,RGB(0,0,0)); CColorPicker::CColorPicker() { m_CurrentColor = COLORREF(::GetSysColor(COLOR_3DFACE)); m_hwndBuddy = NULL; m_hPaletteWnd = NULL; m_bPaletteWndActive = FALSE; } CColorPicker::~CColorPicker() { } BEGIN_MESSAGE_MAP(CColorPicker, CButton) //{{AFX_MSG_MAP(CColorPicker) ON_WM_ERASEBKGND() ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_SETCURSOR() //}}AFX_MSG_MAP END_MESSAGE_MAP() BOOL CColorPicker::OnEraseBkgnd(CDC* pDC) { CPen *pOldPen; COLORREF clr3DFace = GetSysColor(COLOR_3DFACE); CRect rect; GetClientRect(&rect); if(!m_bPaletteWndActive) { pDC->Draw3dRect (rect,RGB(0xff,0xff,0xff),GetSysColor (COLOR_3DDKSHADOW)); rect.DeflateRect(1,1); pDC->Draw3dRect (rect,clr3DFace,clr3DFace); rect.InflateRect(1,1); } rect.DeflateRect(3,3); pDC->FillSolidRect(rect,m_CurrentColor); rect.left -= 1;rect.top -= 1; pOldPen = pDC->SelectObject(&_pen3DDKShadow); pDC->MoveTo(rect.right - 1,rect.top); pDC->LineTo(rect.left,rect.top); pDC->LineTo(rect.left,rect.bottom); pDC->SelectObject(&_penW); pDC->LineTo(rect.right - 6,rect.bottom); pDC->LineTo(rect.right - 6,rect.bottom - 4); pDC->LineTo(rect.right,rect.bottom - 4); pDC->MoveTo(rect.right,rect.top); pDC->LineTo(rect.right,rect.bottom - 3); rect.right += 1; rect.bottom += 1; rect.left = rect.right - 6; rect.top = rect.bottom - 4; pDC->FillSolidRect(rect,clr3DFace); pDC->SelectObject(&_penB); pDC->MoveTo(rect.left + 1,rect.top + 1); pDC->LineTo(rect.right,rect.top + 1); pDC->MoveTo(rect.left + 2,rect.top + 2); pDC->LineTo(rect.right-1,rect.top + 2); pDC->MoveTo(rect.left + 3,rect.top + 3); pDC->LineTo(rect.right-2,rect.top + 3); pDC->SelectObject(pOldPen); return TRUE; } void CColorPicker::OnLButtonDown(UINT nFlags, CPoint point) { CButton::OnLButtonDown(nFlags, point); ::ClientToScreen(this->m_hWnd,&point); if(CreatePaletteWindow()) { nFlags = (UINT)m_CurrentColor; ::PostMessage(m_hPaletteWnd,WM_LBUTTONDOWN,nFlags,MAKELPARAM(point.x,point.y)); } HWND hwndParent = GetParent()->m_hWnd; if(hwndParent) { POINT p1,p2; RECT rect; ::GetWindowRect(m_hWnd,&rect); p1.x = rect.left; p1.y = rect.top; p2.x = rect.right; p2.y = rect.bottom; ::ScreenToClient(hwndParent,&p1); ::ScreenToClient(hwndParent,&p2); rect.left = p1.x; rect.top = p1.y; rect.right = p2.x; rect.bottom = p2.y; ::InvalidateRect(hwndParent,&rect,TRUE); } } void CColorPicker::OnLButtonUp(UINT nFlags, CPoint point) { DestroyPaletteWindow(); if((COLORREF)nFlags != m_CurrentColor) SetColor((COLORREF)nFlags); else Invalidate(); } LONG FAR PASCAL CColorPicker::PaletteWndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam) { HDC hDC; PAINTSTRUCT ps; POINT point; CRect crtColorRect(5,125,40,143); static POINT oldPoint; static BOOL bMouseMoved = FALSE; static HWND hwndParent; static HWND hwndColorBtn; static HFONT hFont = NULL; static COLORREF crtColor,oldColor; static int iActiveRect = -1; switch(nMsg) { case WM_CREATE: { hwndParent = ((LPCREATESTRUCT)lParam)->hwndParent; crtColor = ::GetSysColor(COLOR_3DFACE); LOGFONT logFont; ZeroMemory((void*)&logFont,sizeof(logFont)); strcpy(logFont.lfFaceName,"宋体"); logFont.lfHeight = -12; logFont.lfWeight = 400; logFont.lfCharSet = GB2312_CHARSET; logFont.lfOutPrecision = 3; logFont.lfClipPrecision = 2; logFont.lfQuality = 1; logFont.lfPitchAndFamily = 2; hFont = ::CreateFontIndirect(&logFont); } break; case WM_DESTROY: ::DeleteObject(hFont); break; case WM_DRAWITEM: { LPDRAWITEMSTRUCT lpDis = (LPDRAWITEMSTRUCT)lParam; if(lpDis->CtlID == IDC_COLORDLG_BUTTON) { CRect rect(3,3,8,8); ::FillRect(lpDis->hDC,&lpDis->rcItem,(HBRUSH)::GetStockObject(LTGRAY_BRUSH)); HPEN hOldPen = (HPEN)::SelectObject(lpDis->hDC,_penW); if(lpDis->itemState == 17) { ::MoveToEx(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.top,NULL); ::LineTo(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.bottom-1); ::LineTo(lpDis->hDC,lpDis->rcItem.left,lpDis->rcItem.bottom-1); ::SelectObject(lpDis->hDC,_penB); ::LineTo(lpDis->hDC,lpDis->rcItem.left,lpDis->rcItem.top); ::LineTo(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.top); rect.OffsetRect(1,1); } else { ::MoveToEx(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.top,NULL); ::LineTo(lpDis->hDC,lpDis->rcItem.left,lpDis->rcItem.top); ::LineTo(lpDis->hDC,lpDis->rcItem.left,lpDis->rcItem.bottom-1); ::SelectObject(lpDis->hDC,_penB); ::LineTo(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.bottom-1); ::LineTo(lpDis->hDC,lpDis->rcItem.right-1,lpDis->rcItem.top); } ::SelectObject(lpDis->hDC,_pen3DDKShadow); ::Rectangle(lpDis->hDC,rect.left-1,rect.top-1,rect.right+1,rect.bottom+1); ::SetBkColor(lpDis->hDC, RGB(0xff,0,0)); ::ExtTextOut(lpDis->hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL); rect.OffsetRect(2,2); ::Rectangle(lpDis->hDC,rect.left-1,rect.top-1,rect.right+1,rect.bottom+1); ::SetBkColor(lpDis->hDC, RGB(0,0xff,0)); ::ExtTextOut(lpDis->hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL); rect.OffsetRect(2,2); ::Rectangle(lpDis->hDC,rect.left-1,rect.top-1,rect.right+1,rect.bottom+1); ::SetBkColor(lpDis->hDC, RGB(0xff,0xff,0)); ::ExtTextOut(lpDis->hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL); ::SelectObject(lpDis->hDC,hOldPen); } } break; case WM_SETCOLOR: crtColor = (COLORREF)wParam; oldColor = crtColor; break; case WM_COMMAND: ::PostMessage(hwndParent,WM_COLORDLG,NULL,NULL); break; case WM_MOUSEMOVE: { BOOL bInCtrlArea = FALSE; point.x = LPARAM_X(lParam); point.y = LPARAM_Y(lParam); ::ClientToScreen(hWnd,&point); if(point.x != oldPoint.x || point.y != oldPoint.y) { bMouseMoved = TRUE; HWND hwndPoint = ::WindowFromPoint(point); if(hwndPoint) { COLORREF crtTMPColor; CRect rect; HDC hDC; hDC = ::GetWindowDC(hwndPoint); ::GetWindowRect(hwndPoint,&rect); crtTMPColor = GetPixel(hDC,point.x-rect.left,point.y-rect.top); ::ReleaseDC(hwndPoint,hDC); RECT redrawRect; redrawRect.left = 0; redrawRect.right = 150; redrawRect.top = 120; redrawRect.bottom = 145; ::GetWindowRect(hWnd,&rect); if(!rect.PtInRect(point))//不在本窗口 { crtColor = crtTMPColor; ::InvalidateRect(hWnd,&redrawRect,TRUE); } else { rect.bottom = rect.top + 120; int iCurrentActiveRect; if(rect.PtInRect(point))///判断鼠标是否在当前窗口的色彩区域 { ////计算位于哪个方框内//// point.x -= rect.left; point.y -= rect.top; if(point.x%10 != 0 && point.y%10 != 0) iCurrentActiveRect = point.y/10*19 + point.x/10; else iCurrentActiveRect = -1; } else { iCurrentActiveRect = -1; crtColor = oldColor; if(hwndColorBtn == hwndPoint) ::ReleaseCapture(); else bInCtrlArea = TRUE; } if(iCurrentActiveRect != iActiveRect) { ///清除原焦点 CRect ActiveRect; ActiveRect.left = iActiveRect%19*10; ActiveRect.top = iActiveRect/19*10; ActiveRect.right = ActiveRect.left + 10; ActiveRect.bottom = ActiveRect.top + 10; ::InvalidateRect(hWnd,&ActiveRect,TRUE); ///新焦点 if(iCurrentActiveRect != -1) { crtColor = crtTMPColor; ActiveRect.left = iCurrentActiveRect%19*10; ActiveRect.top = iCurrentActiveRect/19*10; ActiveRect.right = ActiveRect.left + 10; ActiveRect.bottom = ActiveRect.top + 10; ::InvalidateRect(hWnd,&ActiveRect,TRUE); } ::InvalidateRect(hWnd,&redrawRect,TRUE); iActiveRect = iCurrentActiveRect; } } } } if(bInCtrlArea) ::PostMessage(hwndParent,WM_SETCURSOR,NULL,MAKELPARAM(1,0)); else ::PostMessage(hwndParent,WM_SETCURSOR,NULL,NULL); } break; case WM_ACTIVATE: if(LOWORD(wParam) != WA_INACTIVE) break; case WM_LBUTTONUP: point.x = LPARAM_X(lParam); point.y = LPARAM_Y(lParam); if(bMouseMoved || ( point.x == oldPoint.x && point.y == oldPoint.y )) ::PostMessage(hwndParent,WM_LBUTTONUP,(UINT)crtColor,lParam); break; case WM_LBUTTONDOWN: oldPoint.x = LPARAM_X(lParam); oldPoint.y = LPARAM_Y(lParam); bMouseMoved = FALSE; ::InvalidateRect(hWnd,&crtColorRect,TRUE); break; case WM_ERASEBKGND: { hDC = (HDC)wParam; HPEN oldPen = (HPEN)::SelectObject(hDC,_penB); for(int i=0;i<18;i++) { ::MoveToEx(hDC,9+i*10,0,NULL); ::LineTo(hDC,9+i*10,120); } for(i=0;i<12;i++) { ::MoveToEx(hDC,0,9+i*10,NULL); ::LineTo(hDC,190,9+i*10); } CRect btmRect(0,120,191,150); ::FillRect(hDC,btmRect,(HBRUSH)::GetStockObject(LTGRAY_BRUSH)); ::Rectangle(hDC,crtColorRect.left-1,crtColorRect.top-1,crtColorRect.right + 1,crtColorRect.bottom + 1); ::SelectObject(hDC,oldPen); } break; case WM_PAINT: { hDC = ::BeginPaint(hWnd,&ps); CDC dc; dc.Attach(hDC); CRect rect; int x1,y1,i,j,k; UCHAR R=255,G=255,B=255; for(i=0;i<12;i++) { y1 = i*10; rect.SetRect(0,y1,9,y1+9); if(i == 10) R=G=B=0x17; dc.FillSolidRect(rect,RGB(R,G,B)); R -= 0x17; G -= 0x17; B -= 0x17; } R = G = B = 0; for(k = 0;k < 2;k++) for(j = 0;j < 18;j++) for(i = 0;i < 6;i++) { x1 = 10+j*10; y1 = k*60+i*10; rect.SetRect(x1,y1,x1+9,y1+9); dc.FillSolidRect(rect,RGB(R,G,B)); if(B == 0xff) { B = 0x00; if(G == 0xff) { G = 0x00; R += 0x33; } else G += 0x33; } else B += 0x33; } if(iActiveRect != -1) { CRect ActiveRect; ActiveRect.left = iActiveRect%19*10; ActiveRect.top = iActiveRect/19*10; ActiveRect.right = ActiveRect.left + 10; ActiveRect.bottom = ActiveRect.top + 10; dc.DrawFocusRect(ActiveRect); } rect.SetRect(0,y1+130,60,y1+140); dc.FillSolidRect(crtColorRect,crtColor); char strColor[8]="#"; sprintf(strColor+1,"%02X%02X%02X",GetRValue(crtColor),GetGValue(crtColor),GetBValue(crtColor)); HFONT hOldFont = (HFONT)dc.SelectObject(hFont); dc.SetBkMode(TRANSPARENT); dc.TextOut(80,127,strColor,7); dc.SelectObject(hOldFont); dc.Detach(); ::EndPaint(hWnd,&ps); } break; default: return(::DefWindowProc(hWnd,nMsg,wParam,lParam)); } return NULL; } BOOL CColorPicker::CreatePaletteWindow() { if(!m_bPaletteWndActive) { // 创建调色板子窗口 WNDCLASS wndcls; wndcls.style = CS_HREDRAW | CS_VREDRAW; wndcls.lpfnWndProc = PaletteWndProc; wndcls.cbClsExtra = wndcls.cbWndExtra = 0; wndcls.hInstance = ::AfxGetInstanceHandle(); wndcls.hIcon = NULL; wndcls.hCursor = NULL; wndcls.hbrBackground = (HBRUSH)::GetStockObject(WHITE_BRUSH); wndcls.lpszMenuName = NULL; wndcls.lpszClassName = "ColorPalette"; if (!::RegisterClass(&wndcls)) AfxThrowResourceException(); HDC hDC = ::GetDC(m_hWnd); int scrWidth = ::GetDeviceCaps(hDC,HORZRES); int scrHeight = ::GetDeviceCaps(hDC,VERTRES); ::ReleaseDC(m_hWnd,hDC); CRect rect; GetWindowRect(rect); rect.top = rect.bottom - 1; if(rect.left > scrWidth-191) rect.left = scrWidth-191; else if(rect.left < 0) rect.left = 0; if(rect.top > scrHeight-150) rect.top = rect.top-150; rect.bottom = rect.top + 150; rect.right = rect.left + 191; if(!(m_hPaletteWnd = ::CreateWindowEx(WS_EX_TOPMOST,"ColorPalette","Palatte", WS_POPUP|WS_BORDER|WS_VISIBLE,rect.left,rect.top,rect.Width(), rect.Height(),m_hWnd,NULL,wndcls.hInstance,NULL))) return FALSE; } ::PostMessage(m_hPaletteWnd,WM_SETCOLOR,(WPARAM)m_CurrentColor,NULL); ::ShowWindow(m_hPaletteWnd,SW_SHOW); ::SetCapture(m_hPaletteWnd); m_bPaletteWndActive = TRUE; return TRUE; } void CColorPicker::DestroyPaletteWindow() { ::DestroyWindow(m_hPaletteWnd); ::UnregisterClass("ColorPalette",::AfxGetInstanceHandle()); m_bPaletteWndActive = FALSE; m_hPaletteWnd = NULL; } BOOL CColorPicker::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) { if(m_bPaletteWndActive && m_hCursorStraw && nHitTest != 1) ::SetCursor(m_hCursorStraw); else ::SetCursor(AfxGetApp()->LoadStandardCursor(IDC_ARROW)); return TRUE; } void CColorPicker::GetColor(CString& strColor) { char cColor[8]="#"; sprintf(cColor+1,"%02X%02X%02X",GetRValue(m_CurrentColor),GetGValue(m_CurrentColor),GetBValue(m_CurrentColor)); strColor = cColor; } COLORREF CColorPicker::GetColor() { return m_CurrentColor; } LRESULT CColorPicker::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) { if(message == WM_COLORDLG) { DestroyPaletteWindow(); CColorDialog dlg; dlg.m_cc.Flags |= CC_FULLOPEN; if(dlg.DoModal() == IDOK) SetColor(dlg.GetColor()); return TRUE; } else return CButton::DefWindowProc(message, wParam, lParam); } void CColorPicker::SetBuddy(HWND hWnd) { m_hwndBuddy = hWnd; } void CColorPicker::SetColor(COLORREF ref) { m_CurrentColor = ref; ::PostMessage(GetParent()->m_hWnd,WM_COMMAND,MAKELPARAM(::GetWindowLong(m_hWnd,GWL_ID),BN_CLICKED),(LPARAM)m_hWnd); if(m_hwndBuddy) { CString strColor; GetColor(strColor); ::SetWindowText(m_hwndBuddy,strColor); } Invalidate(); } /////////////////////////////////// BOOL CColorPickerDemoDlg::OnEraseBkgnd(CDC* pDC) { CRect rect; GetClientRect(rect); pDC->FillSolidRect(rect,m_clrBKColor); return TRUE; } void CColorPickerDemoDlg::OnButton2() { m_clrBKColor = m_btnColor2.GetColor(); Invalidate(); } void CColorPickerDemoDlg::OnButton3() { m_clrTEXTColor = m_btnColor3.GetColor(); Invalidate(); } HBRUSH CColorPickerDemoDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) { HBRUSH hbr; switch(nCtlColor) { case CTLCOLOR_STATIC: pDC->SetBkMode( TRANSPARENT ); pDC->SetTextColor( m_clrTEXTColor ); hbr = ( HBRUSH )::GetStockObject( NULL_BRUSH ); break; default: hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor); } return hbr; } |
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