void CXTFlatComboBoxTheme::DrawDownArrow(CDC* pDC, const CRect& rcItem, int eState, CXTFlatComboBox* pCombo)
{
// determine background size.
CRect rcArrow(rcItem);
DrawArrowBack(pDC, rcArrow, eState, pCombo);
CPoint pt;
pt.x = (rcArrow.left + rcArrow.right - 4) / 2;
pt.y = (rcArrow.top + rcArrow.bottom - 2) / 2;
if (eState == xtMouseSelect)
pt.Offset(1, 1);
COLORREF cr = pCombo->IsWindowEnabled() ? GetXtremeColor(COLOR_WINDOWTEXT) : GetXtremeColor(COLOR_3DSHADOW);
pDC->SetPixel(pt.x, pt.y, cr);
pDC->SetPixel(pt.x+1, pt.y, cr);
pDC->SetPixel(pt.x+2, pt.y, cr);
pDC->SetPixel(pt.x+3, pt.y, cr);
pDC->SetPixel(pt.x+4, pt.y, cr);
pDC->SetPixel(pt.x+1, pt.y+1, cr);
pDC->SetPixel(pt.x+2, pt.y+1, cr);
pDC->SetPixel(pt.x+3, pt.y+1, cr);
pDC->SetPixel(pt.x+2, pt.y+2, cr);
}
// 绘制弹出式菜单箭头
void CUIMenu::DrawArrow(HDC hDC, CRect& rect)
{
if (m_lpArrowImg != NULL && !m_lpArrowImg->IsNull())
{
int cxArrow = m_lpArrowImg->GetWidth();
int cyArrow = m_lpArrowImg->GetHeight();
int x = rect.right - 8 - cxArrow;
int y = (rect.Height() - cyArrow + 1) / 2;
CRect rcArrow(x, y, x + cxArrow, y + cyArrow);
m_lpArrowImg->Draw(hDC, rcArrow);
}
}
//绘画函数
VOID CUIMenu::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
//效验参数
ASSERT(lpDrawItemStruct->CtlType==ODT_MENU);
if (lpDrawItemStruct->CtlType!=ODT_MENU) return;
//变量定义
CRect rcItem=lpDrawItemStruct->rcItem;
CDC * pDC=CDC::FromHandle(lpDrawItemStruct->hDC);
CEasySkinMenuItem * pEasySkinMenuItem=(CEasySkinMenuItem *)lpDrawItemStruct->itemData;
CMemoryDC BufferDC(pDC,rcItem);
//状态变量
bool bChecked=((lpDrawItemStruct->itemState&ODS_CHECKED)!=0);
bool bSelected=((lpDrawItemStruct->itemState&ODS_SELECTED)!=0);
bool bGrayed=((lpDrawItemStruct->itemState&ODS_DISABLED)||(lpDrawItemStruct->itemState&ODS_GRAYED));
//绘画背景
COLORREF crMenuBar=RGB(255,255,255);
COLORREF crBorder=RGB(213,233,242);
COLORREF crNormalBack=RGB(255,255,255);
//菜单左边
if ( m_pMenuBar != NULL && m_pMenuBar->IsNull() == false )
m_pMenuBar->Draw(&BufferDC,CRect(rcItem.left,rcItem.top,MENU_BAR_CX,rcItem.bottom));
else
BufferDC.FillSolidRect(rcItem.left,rcItem.top,MENU_BAR_CX,rcItem.Height(),crMenuBar);
//菜单节点的背景
if ( m_pMenuBack != NULL && m_pMenuBack->IsNull() == false )
m_pMenuBack->Draw(&BufferDC,CRect(rcItem.left+MENU_BAR_CX,rcItem.top,rcItem.Width(),rcItem.bottom));
else
BufferDC.FillSolidRect(rcItem.left+MENU_BAR_CX,rcItem.top,rcItem.Width()-MENU_BAR_CX,rcItem.Height(),crNormalBack);
//焦点边框
if ((bSelected==true)&&(bGrayed==false)&&(pEasySkinMenuItem!=NULL)&&(pEasySkinMenuItem->m_MenuItemType!=MenuItemType_Separator))
{
if ( m_pMenuHoven != NULL && m_pMenuHoven->IsNull() == false )
{
CRect rcSelItem(rcItem);
rcSelItem.left += 1;
rcSelItem.top += 1;
rcSelItem.bottom -= 1;
m_pMenuHoven->Draw(&BufferDC,CRect(rcSelItem.left+1,rcSelItem.top+1,rcSelItem.Width()-1,rcSelItem.top+rcSelItem.Height()-1));
}
else
BufferDC.FillSolidRect(rcItem.left+2,rcItem.top+2,rcItem.Width()-4,rcItem.Height()-4,crBorder);
}
//绘制箭头
if ( pEasySkinMenuItem->m_hSubMenu != NULL )
{
if ( m_pArrow != NULL && m_pArrow->IsNull() == false )
{
CRect rcArrow(rcItem.right-5-m_pArrow->GetWidth(),rcItem.top+(rcItem.Height()-m_pArrow->GetHeight())/2,rcItem.right-5,rcItem.top+(rcItem.Height()+m_pArrow->GetHeight())/2);
m_pArrow->DrawImage(&BufferDC,rcArrow.left,rcArrow.top);
}
}
//选择标志
if (bChecked)
{
if ( m_pCheck != NULL && m_pCheck->IsNull() == false )
{
CRect rcIcon(rcItem.left,rcItem.top,MENU_BAR_CX,rcItem.bottom);
m_pCheck->DrawImage(&BufferDC,(rcIcon.Width()-m_pCheck->GetWidth())/2,rcIcon.top+(rcIcon.Height()-m_pCheck->GetHeight())/2);
}
}
//其他菜单
if (pEasySkinMenuItem==NULL)
{
//获取信息
MENUITEMINFO MenuItemInfo;
MenuItemInfo.cbSize=sizeof(MenuItemInfo);
MenuItemInfo.fMask=MIIM_FTYPE|MIIM_BITMAP;
GetMenuItemInfo(lpDrawItemStruct->itemID,&MenuItemInfo);
return;
}
//界面菜单
switch (pEasySkinMenuItem->m_MenuItemType)
{
case MenuItemType_String: //字符菜单
{
//变量定义
CEasySkinMenuString * pEasySkinMenuString=(CEasySkinMenuString *)pEasySkinMenuItem;
CRect rcIcon(rcItem.left,rcItem.top,MENU_BAR_CX,rcItem.bottom);
if ( bSelected )
{
if ( pEasySkinMenuString->m_pImageH != NULL && pEasySkinMenuString->m_pImageH->IsNull() == false )
pEasySkinMenuString->m_pImageH->DrawImage(&BufferDC,(rcIcon.Width()-pEasySkinMenuString->m_pImageH->GetWidth())/2,rcIcon.top+(rcIcon.Height()-pEasySkinMenuString->m_pImageH->GetHeight())/2);
else if ( pEasySkinMenuString->m_pImageN != NULL && pEasySkinMenuString->m_pImageN->IsNull() == false )
pEasySkinMenuString->m_pImageN->DrawImage(&BufferDC,(rcIcon.Width()-pEasySkinMenuString->m_pImageN->GetWidth())/2,rcIcon.top+(rcIcon.Height()-pEasySkinMenuString->m_pImageN->GetHeight())/2);
}
else
{
if ( pEasySkinMenuString->m_pImageN != NULL && pEasySkinMenuString->m_pImageN->IsNull() == false )
pEasySkinMenuString->m_pImageN->DrawImage(&BufferDC,(rcIcon.Width()-pEasySkinMenuString->m_pImageN->GetWidth())/2,rcIcon.top+(rcIcon.Height()-pEasySkinMenuString->m_pImageN->GetHeight())/2);
}
//设置颜色
BufferDC.SetBkMode(TRANSPARENT);
BufferDC.SelectObject(GetCtrlFont());
//设置颜色
if (bGrayed==true) BufferDC.SetTextColor(m_colDisableText);
else if (bSelected==true) BufferDC.SetTextColor(m_colSelectText);
else BufferDC.SetTextColor(m_colNormalText);
//绘画字符
CRect rcString;
rcString.top=rcItem.top;
rcString.bottom=rcItem.bottom;
rcString.right=rcItem.right-SPACE_RIGHT;
rcString.left=rcItem.left+MENU_BAR_CX+SPACE_LEFT;
BufferDC.DrawText(pEasySkinMenuString->m_strString,pEasySkinMenuString->m_strString.GetLength(),&rcString,DT_SINGLELINE|DT_VCENTER|DT_NOCLIP);
break;
}
case MenuItemType_Separator: //拆分菜单
{
//绘画拆分
if ( m_pSeparator != NULL && m_pSeparator->IsNull() == false )
m_pSeparator->Draw(&BufferDC,CRect(rcItem.left+MENU_BAR_CX+SPACE_LEFT,rcItem.top+1,rcItem.right-SPACE_RIGHT,rcItem.Height()-2));
else
BufferDC.FillSolidRect(rcItem.left+MENU_BAR_CX+SPACE_LEFT,rcItem.top+1,rcItem.Width()-MENU_BAR_CX-SPACE_LEFT-SPACE_RIGHT,rcItem.Height()-2,m_crSeparator);
//补齐分隔条处的边框颜色
UIRenderEngine->DrawLine(BufferDC.GetSafeHdc(),CRect(rcItem.left,rcItem.top,rcItem.left+1,rcItem.top+rcItem.Height()+1),1,m_colFrameNormal);
UIRenderEngine->DrawLine(BufferDC.GetSafeHdc(),CRect(rcItem.right-1,rcItem.top,rcItem.right,rcItem.top+rcItem.Height()+1),1,m_colFrameNormal);
break;
}
}
//绘制边框色
int nSeparatorCount = GetSeparatorCount();
CRect rcClient(0,0,rcItem.right,0);
rcClient.bottom = rcItem.Height()*(GetMenuItemCount()-nSeparatorCount)+SEPARATOR_CY*nSeparatorCount;
UIRenderEngine->DrawRect(BufferDC.GetSafeHdc(),rcClient,1,m_colFrameNormal);
//绘画界面
pDC->BitBlt(rcItem.left,rcItem.top,rcItem.Width(),rcItem.Height(),&BufferDC,rcItem.left,rcItem.top,SRCCOPY);
//抠掉子节点区域，从而屏蔽系统绘制的倒三角
if ( (pEasySkinMenuItem->m_hSubMenu != NULL) && (m_pArrow != NULL && m_pArrow->IsNull() == false))
pDC->ExcludeClipRect(rcItem.left, rcItem.top, rcItem.right, rcItem.bottom);
return;
}
