一个支持颜色、线型、线宽和填充选择的组合框

// ColorComboBox.cpp : implementation file // See ColorComboBox.h for details on how to use this class // #include "stdafx.h" #include "PetrelPro.h" #include "ColorComboBox.h" #ifdef _DEBUG #undef THIS_FILE static char BASED_CODE THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CColorComboBox CColorComboBox::CColorComboBox() { m_nFillType = 0; InitColorInfo(); } CColorComboBox::~CColorComboBox() { } BEGIN_MESSAGE_MAP(CColorComboBox, CComboBox) //{{AFX_MSG_MAP(CColorComboBox) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CColorComboBox message handlers int CColorComboBox::CompareItem(LPCOMPAREITEMSTRUCT lpCompareItemStruct) { COLORREF color1 = (COLORREF)lpCompareItemStruct->itemData1; COLORREF color2 = (COLORREF)lpCompareItemStruct->itemData2; if (color1 == color2) return 0; // exact match // first do an intensity sort, lower intensities go first int intensity1 = GetRValue(color1) + GetGValue(color1) + GetBValue(color1); int intensity2 = GetRValue(color2) + GetGValue(color2) + GetBValue(color2); if (intensity1 < intensity2) return -1; // lower intensity goes first else if (intensity1 > intensity2) return 1; // higher intensity goes second // if same intensity, sort by color (blues first, reds last) if (GetBValue(color1) > GetBValue(color2)) return -1; else if (GetGValue(color1) > GetGValue(color2)) return -1; else if (GetRValue(color1) > GetRValue(color2)) return -1; else return 1; } void CColorComboBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) { CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC); COLORREF color = (COLORREF)lpDrawItemStruct->itemData; // RGB in item data CRect rcItem(lpDrawItemStruct->rcItem); rcItem.InflateRect(-2, -2); pDC->FillSolidRect(rcItem,RGB(255,255,255)); switch(m_nFillType) { case 0: { CBrush brush(color); CRect rc = rcItem; rc.right = rc.left + 12; pDC->FillRect(rc, &brush); brush.DeleteObject(); // CString sName = GetColorName(color); pDC->SetBkMode(TRANSPARENT); pDC->TextOut(rc.right+2,rcItem.top,sName); } break; case 1: { CPen* pOldPen; switch(color) { case 0: { CPen pen(PS_SOLID,2,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); } break; case 1: { CPen pen(PS_DASH,1,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); break; } case 2: { CPen pen(PS_DOT,1,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); break; } case 3: { CPen pen(PS_DASHDOT,1,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); break; } case 4: { CPen pen(PS_DASHDOTDOT,1,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); break; } case 5: { CPen pen(PS_NULL,2,RGB(0,0,0)); pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right,(rcItem.top+rcItem.bottom)/2); CString sNoStyle; sNoStyle.LoadString(IDS_NO_STYLE); pDC->TextOut(rcItem.left,rcItem.top,sNoStyle); pDC->SelectObject(pOldPen); pen.DeleteObject(); break; } } } break; case 2: { switch(color) { case 0: { CBrush brush(HS_HORIZONTAL,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 1: { CBrush brush(HS_VERTICAL,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 2: { CBrush brush(HS_FDIAGONAL,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 3: { CBrush brush(HS_BDIAGONAL,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 4: { CBrush brush(HS_CROSS,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 5: { CBrush brush(HS_DIAGCROSS,RGB(0,0,0)); pDC->FillRect(rcItem,&brush); brush.DeleteObject(); break; } case 6: { CBrush brush(RGB(0,0,0)); pDC->FillRect(rcItem, &brush); brush.DeleteObject(); break; } case 7: { pDC->SelectStockObject(NULL_BRUSH); pDC->SelectStockObject(NULL_PEN); pDC->Rectangle(rcItem); CString sNoFill; sNoFill.LoadString(IDS_NO_FILL); pDC->TextOut(rcItem.left,rcItem.top,sNoFill); break; } } } break; case 3: { CPen pen(PS_SOLID,color,RGB(0,0,0)); CPen *pOldPen = pDC->SelectObject(&pen); pDC->MoveTo(rcItem.left+8,(rcItem.top+rcItem.bottom)/2); pDC->LineTo(rcItem.right-8,(rcItem.top+rcItem.bottom)/2); pDC->SelectObject(pOldPen); pen.DeleteObject(); } break; } if (lpDrawItemStruct->itemAction & ODA_FOCUS) pDC->DrawFocusRect(&lpDrawItemStruct->rcItem); } #define COLOR_ITEM_HEIGHT 20 // We made our color bars all be the same height for simplicity. You // can actually specify variable heights as long as you set the // CBS_OWNERDRAWVARIABLE style. void CColorComboBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct) { // all items are of fixed size // must use CBS_OWNERDRAWVARIABLE for this to work // lpMeasureItemStruct->itemHeight = COLOR_ITEM_HEIGHT; } void CColorComboBox::AddListItem(COLORREF color) { // add a combo box item AddString((LPCTSTR) color); // Combo box does not have the CBS_HASSTRINGS style, so the // normal combo box string is used to store an RGB color } // add 8 colors to the combo box (primary + secondary color only) void CColorComboBox::LoadList(BYTE fillType) { m_nFillType = fillType; switch(m_nFillType) { case 0: //颜色 { for(int i=0; i<COLOR_COUNT; i++) AddListItem(m_ColorInfo[i].nColor); } break; case 1://线型 { for(int i=0;i<6;i++) AddListItem(i); } break; case 2://填充 { for(int i=0;i<8;i++) AddListItem(i); } break; case 3://线宽 { for(int i=1; i<15; i++) AddListItem(i); } break; } } void CColorComboBox::InitColorInfo() { m_ColorInfo[0].nColor = RGB(0,0,0); m_ColorInfo[0].sColorName = "纯黑"; m_ColorInfo[1].nColor = RGB(0,0,0x80);; m_ColorInfo[1].sColorName = "海军蓝"; m_ColorInfo[2].nColor = RGB(0,0,0x8B); m_ColorInfo[2].sColorName = "暗蓝"; m_ColorInfo[3].nColor = RGB(0,0,0xCD); m_ColorInfo[3].sColorName = "中蓝"; m_ColorInfo[4].nColor = RGB(0,0,0xFF); m_ColorInfo[4].sColorName = "纯蓝"; m_ColorInfo[5].nColor = RGB(0,0x64,0); m_ColorInfo[5].sColorName = "暗绿"; m_ColorInfo[6].nColor = RGB(0,0x80,0); m_ColorInfo[6].sColorName = "纯绿"; m_ColorInfo[7].nColor = RGB(0,0x80,0x80); m_ColorInfo[7].sColorName = "水鸭"; m_ColorInfo[8].nColor = RGB(0,0x8B,0x8B); m_ColorInf