visualfx.cpp

VC&Matlab混合编程实现无线电导航指示器

  pDC->MoveTo(x+textSize.cx+TAB_SPACE+1, y+TABSEL_HEIGHT-1);
  pDC->LineTo(client.right, y+TABSEL_HEIGHT-1);

  // and a white double line
  pDC->SelectObject(&m_PenWhite2);
  if (x!=0) {
    pDC->MoveTo(0, y+TABSEL_HEIGHT+1);
    pDC->LineTo(x, y+TABSEL_HEIGHT+1);
  }
  pDC->MoveTo(x+textSize.cx+TAB_SPACE, y+TABSEL_HEIGHT+1);
  pDC->LineTo(client.right, y+TABSEL_HEIGHT+1);

  // gray inside
  pDC->FillSolidRect(x+3, y+3,textSize.cx+TAB_SPACE-6, TABSEL_HEIGHT, 
                  ::GetSysColor(COLOR_BTNFACE));

  if (pItem->m_hIcon) {
    ::DrawIconEx(pDC->m_hDC,x+4,y+TAB_ICON_Y,pItem->m_hIcon,16,16,0,NULL,DI_NORMAL);
  }

  CRect rect(CPoint(x+nDeltaWidth+TAB_SPACE/2, y+(TAB_HEIGHT-textSize.cy)/2+1), 
             CSize(textSize.cx-nDeltaWidth, textSize.cy));
  pItem->SetFont(&m_Font);
  pItem->SetRect(rect);
  
  return textSize.cx+TAB_SPACE;
}

// Draw a selected tab at the bottom
int TTabWnd::drawSelTabBottom(CDC *pDC, int x, CRect& client, TTabItem *pItem)
{
  ASSERT(pItem);
  ASSERT(pDC);

  CString str = pItem->GetText();
  CSize textSize = pDC->GetTextExtent(str);
  textSize.cx += 4;
  if (textSize.cx > TAB_MAXLEN)
    textSize.cx = TAB_MAXLEN;

  int y = client.Height() - TABWND_HEIGHT + TAB_DEPL;
  int nDeltaWidth = 0;

  if (pItem->m_hIcon) {
    nDeltaWidth = TAB_ICON + TAB_ICON_X;
    textSize.cx += nDeltaWidth;
  }

  // black border, no bottom line
  pDC->SelectObject(&m_PenBlack);
  pDC->MoveTo(x,y);
  pDC->LineTo(x,y+TABSEL_HEIGHT);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-1, y+TABSEL_HEIGHT);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-1, y);

  // left border in white, double line
  pDC->SelectObject(&m_PenWhite2);
  pDC->MoveTo(x+2,y);
  pDC->LineTo(x+2,y+TABSEL_HEIGHT-1);

  // right and bottom border, dark gray, double line
  pDC->SelectObject(&m_PenDGray2);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-4, y+TABSEL_HEIGHT-1);
  pDC->MoveTo(x+textSize.cx+TAB_SPACE-2, y);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-2, y+TABSEL_HEIGHT-1);

  // a black line to far left and right
  pDC->SelectObject(&m_PenBlack);
  pDC->MoveTo(0, y);
  pDC->LineTo(x, y);
  pDC->MoveTo(x+textSize.cx+TAB_SPACE, y);
  pDC->LineTo(client.right, y);

  // and a gray line to far left and right
  pDC->SelectObject(&m_PenDGray);
  if (x != 0) {
    pDC->MoveTo(0, y-1);
    pDC->LineTo(x, y-1);
  }
  pDC->MoveTo(x+textSize.cx+TAB_SPACE-2, y-1);
  pDC->LineTo(client.right, y-1);

  // gray inside
  pDC->FillSolidRect(x+3,y,textSize.cx+TAB_SPACE-6, TABSEL_HEIGHT-2, 
                    ::GetSysColor(COLOR_BTNFACE));

  if (pItem->m_hIcon) {
    ::DrawIconEx(pDC->m_hDC,x+4,y+TAB_ICON_Y,pItem->m_hIcon,16,16,0,NULL,DI_NORMAL);
  }

  CRect rect(CPoint(x+nDeltaWidth+TAB_SPACE/2, y+(TAB_HEIGHT-textSize.cy)/2+1), 
             CSize(textSize.cx-nDeltaWidth, textSize.cy));
  pItem->SetFont(&m_Font);
  pItem->SetRect(rect);
  
  return textSize.cx+TAB_SPACE;
}

// Draws an unselected tab and returs its height
int TTabWnd::drawTabTop(CDC *pDC, int x, CRect& client, TTabItem *pItem)
{
  ASSERT(pItem);
  ASSERT(pDC);

  CString str = pItem->GetText();
  CSize textSize = pDC->GetTextExtent(str);
  textSize.cx += 4;
  if (textSize.cx > TAB_MAXLEN)
    textSize.cx = TAB_MAXLEN;

  int y = TABWND_HEIGHT-TAB_HEIGHT-TAB_DEPL;
  int nDeltaWidth = 0;

  if (pItem->m_hIcon) {
    nDeltaWidth = TAB_ICON + TAB_ICON_X;
    textSize.cx += nDeltaWidth;
  }
  
  // black border
  pDC->FrameRect(&CRect(CPoint(x,y), CSize(textSize.cx+TAB_SPACE, TAB_HEIGHT)), 
                  &m_BrushBlack);

  pDC->SelectObject(&m_PenWhite);
  pDC->MoveTo(x+1, y+1);
  pDC->LineTo(x+1, y+TAB_HEIGHT-1);
  pDC->MoveTo(x+1, y+1);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-2, y+1);

  pDC->SelectObject(&m_PenDGray);
  pDC->MoveTo(x+textSize.cx+TAB_SPACE-2, y+1);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-2, y+TAB_HEIGHT-1);

  pDC->FillRect(&CRect(CPoint(x+2,y+2), CSize(textSize.cx+TAB_SPACE-4, TAB_HEIGHT-3)), 
                &m_BrushLGray);

  // clean up
  int dy = TABSEL_HEIGHT-TAB_HEIGHT;
  pDC->FillSolidRect(x, y-dy, textSize.cx+TAB_SPACE, dy, GetSysColor(COLOR_BTNFACE));

  if (pItem->m_hIcon) {
    ::DrawIconEx(pDC->m_hDC,x+4,y+TAB_ICON_Y,pItem->m_hIcon,16,16,0,NULL,DI_NORMAL);
  }

  CRect rect(CPoint(x+nDeltaWidth+TAB_SPACE/2, y+(TAB_HEIGHT-textSize.cy)/2+1), 
             CSize(textSize.cx-nDeltaWidth, textSize.cy));
  pItem->SetFont(&m_Font);
  pItem->SetRect(rect);
  
  return textSize.cx+TAB_SPACE;
}

// Draw an unselected tab at the bottom
int TTabWnd::drawTabBottom(CDC *pDC, int x, CRect& client, TTabItem *pItem)
{
  ASSERT(pItem);
  ASSERT(pDC);

  CString str = pItem->GetText();
  CSize textSize = pDC->GetTextExtent(str);
  textSize.cx += 4;
  if (textSize.cx > TAB_MAXLEN)
    textSize.cx = TAB_MAXLEN;

  int y = client.Height() - TABWND_HEIGHT + TAB_DEPL;
  int nDeltaWidth = 0;

  if (pItem->m_hIcon) {
    nDeltaWidth = TAB_ICON + TAB_ICON_X;
    textSize.cx += nDeltaWidth;
  }

  // black border
  pDC->FrameRect(&CRect(CPoint(x,y), CSize(textSize.cx+TAB_SPACE, TAB_HEIGHT+1)), 
                  &m_BrushBlack);

  // Gray border bottom and right side
  pDC->SelectObject(&m_PenDGray);
  pDC->MoveTo(x+1, y+TAB_HEIGHT-1);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-2, y+TAB_HEIGHT-1);
  pDC->MoveTo(x+textSize.cx+TAB_SPACE-2, y);
  pDC->LineTo(x+textSize.cx+TAB_SPACE-2, y+TAB_HEIGHT-1);

  pDC->FillRect(&CRect(CPoint(x+1,y+1), CSize(textSize.cx+TAB_SPACE-4, TAB_HEIGHT-3)), 
                &m_BrushLGray);

  if (pItem->m_hIcon) {
    ::DrawIconEx(pDC->m_hDC,x+4,y+TAB_ICON_Y,pItem->m_hIcon,16,16,0,NULL,DI_NORMAL);
  }

  CRect rect(CPoint(x+nDeltaWidth+TAB_SPACE/2, y+(TAB_HEIGHT-textSize.cy)/2+1), 
             CSize(textSize.cx-nDeltaWidth, textSize.cy));
  pItem->SetFont(&m_Font);
  pItem->SetRect(rect);
  
  return textSize.cx+TAB_SPACE;
}

// Draw edge arround client area
void TTabWnd::drawClient(CDC *pDc, CRect& rect)
{
  ASSERT(pDc);

  CWnd *pParent = GetParent();
  ASSERT(pParent);
  switch (m_nTabPos) {
  case TP_TOP:
    if (pParent->IsKindOf(RUNTIME_CLASS(CFrameWnd))) {
      pDc->DrawEdge(&rect, EDGE_ETCHED, BF_TOP);
    }
    pDc->Draw3dRect(0,TABWND_HEIGHT, rect.right, rect.bottom-TABWND_HEIGHT,
                   ::GetSysColor(COLOR_BTNSHADOW), ::GetSysColor(COLOR_BTNHIGHLIGHT));
    pDc->Draw3dRect(1,TABWND_HEIGHT+1, rect.right-2, rect.bottom-TABWND_HEIGHT-2,
                    0, ::GetSysColor(COLOR_3DLIGHT));
    break;
  case TP_BOTTOM:
    if (pParent->IsKindOf(RUNTIME_CLASS(CFrameWnd))) {
      pDc->DrawEdge(&rect, EDGE_ETCHED, BF_BOTTOM);
    }
    pDc->Draw3dRect(0,0, rect.right, rect.bottom-TABWND_HEIGHT+1,
                   ::GetSysColor(COLOR_BTNSHADOW), ::GetSysColor(COLOR_BTNHIGHLIGHT));
    pDc->Draw3dRect(1,1, rect.right-2, rect.bottom-TABWND_HEIGHT-1,
                    0, ::GetSysColor(COLOR_3DLIGHT));
    break;
  }
}

void TTabWnd::OnPaint()
{
  CPaintDC dc(this); // device context for painting
  CRect client;

  GetClientRect(&client);
  drawClient(&dc, client);

  int x = 0, nIndex = 0;
  TTabItemList::iterator iterator;
  for (iterator = m_TabList.begin(); iterator != m_TabList.end(); iterator++) {
    TTabItem *pItem = *iterator;
    ASSERT(pItem != NULL);
    if (pItem->m_bVisible) {
      pItem->m_nMinX = x;
      if (nIndex != m_nSelectedTab) {
        switch (m_nTabPos) {
        case TP_TOP: x += drawTabTop(&dc, x, client, pItem); break;
        case TP_BOTTOM: x += drawTabBottom(&dc, x, client, pItem); break;
        }
      } else {
        switch (m_nTabPos) {
        case TP_TOP: x += drawSelTabTop(&dc, x, client, pItem); break;
        case TP_BOTTOM: x += drawSelTabBottom(&dc, x, client, pItem); break;
        }
      }
    }
    pItem->m_nMaxX = x;
    nIndex ++;
  }
}

// Returns tab index that holds specified point
int TTabWnd::HitTest(CPoint& point)
{
  return HitTest(point.x,point.y);
}

// Returns tab index that holds specified point
int TTabWnd::HitTest(int x, int y)
{
  int notsel_y_min, sel_y_min, y_max;
  CRect rect;

  GetClientRect(&rect);
  switch (m_nTabPos) {
  case TP_TOP:
    notsel_y_min = TABWND_HEIGHT - TAB_HEIGHT - TAB_DEPL;
    sel_y_min = TABWND_HEIGHT - TABSEL_HEIGHT - TAB_DEPL;
    y_max = TABWND_HEIGHT - TAB_DEPL;
    break;
  case TP_BOTTOM:
    notsel_y_min = rect.Height() - TABWND_HEIGHT + TAB_DEPL;
    sel_y_min = rect.Height() - TABWND_HEIGHT + TAB_DEPL;
    y_max = rect.Height() - TABWND_HEIGHT + TAB_DEPL + TAB_HEIGHT;
    break;
  };

  int nIndex = 0;
  TTabItemList::iterator iterator;
  for (iterator = m_TabList.begin(); iterator != m_TabList.end(); iterator++) {
    TTabItem *pItem = (*iterator);
    if (pItem->m_bEnabled && pItem->m_bVisible) {
      if (nIndex != m_nSelectedTab && (y < notsel_y_min || y > y_max)) 
        continue;
      if (nIndex == m_nSelectedTab && (y < sel_y_min || y > y_max)) 
        continue;
      if (x >= pItem->m_nMinX && x <= pItem->m_nMaxX)
        return nIndex;
    }
    nIndex++;
  }
  return -1;
}

// Switch focus to specified tab index
BOOL TTabWnd::SetActivePane(int nIndex, BOOL bActivate)
{
  if (nIndex == -1)
    return FALSE;
  if (nIndex == m_nSelectedTab)
    return TRUE;

  TTabItem *pNewPane = findTabItem(nIndex);
  if (!pNewPane->m_bEnabled || !pNewPane->m_bVisible)
    return FALSE;
  TTabItem *pOldPane = NULL;
  if (m_nSelectedTab != -1)
    pOldPane = findTabItem(m_nSelectedTab);
  if (CanSetActivePane(pOldPane ? pOldPane->m_pWnd : NULL, pNewPane->m_pWnd)) {
    // Deactivate old pane
    if (m_nSelectedTab != -1) {
      pOldPane->m_pWnd->EnableWindow(FALSE);
      pOldPane->m_pWnd->ShowWindow(SW_HIDE);
    }
    // Activate new pane
    pNewPane->m_pWnd->EnableWindow(pNewPane->m_bWndEnabled ? TRUE : FALSE);
    pNewPane->m_pWnd->ShowWindow(SW_SHOW);
    pNewPane->m_pWnd->SetFocus();
    // Save index of new pane
    m_nSelectedTab = nIndex;
    // Invalidate tab
    invalidateTabArea();
    // Inform derived class
    OnSetActivePane(pOldPane ? pOldPane->m_pWnd : NULL, pNewPane->m_pWnd);
    // Update frame window
    if (bActivate) {
      CWnd *pParent = GetParent();
      while (pParent && !pParent->IsKindOf(RUNTIME_CLASS(CFrameWnd)))
        pParent = pParent->GetParent();
      ASSERT(pParent != NULL);
      updateFrame((CFrameWnd*)pParent, pNewPane->m_pWnd);
    }
    return TRUE;
  }
  return FALSE;
}

// Update frame window active view based on newly selected tab item
BOOL TTabWnd::updateFrame(CFrameWnd *pFrame, CWnd *pWnd)
{
  ASSERT(pFrame);
  ASSERT(pWnd);

  if (pWnd->IsKindOf(RUNTIME_CLASS(CView))) {
    // New tab item is a view
    pFrame->SetActiveView((CView*)pWnd);
    return TRUE;
  } else if (pWnd->IsKindOf(RUNTIME_CLASS(CSplitterWnd))) {
    CSplitterWnd *pSplitter = (CSplitterWnd*)pWnd;
    CWnd *pView = pSplitter->GetActivePane();
    if (pView == NULL) {
      CWnd *pTmpView;
      for (int x = 0; x < pSplitter->GetRowCount(); x ++) {
        for (int y = 0; y < pSplitter->GetColumnCount(); y ++) {
          pTmpView = pSplitter->GetPane(x,y);
          if (pTmpView->IsWindowEnabled()) {
            if (updateFrame(pFrame, pTmpView))
              return TRUE;
          }
        }
      }
    }
    if (pView == NULL)
      pView = pSplitter->GetPane(0,0);
    pFrame->SetActiveView((CView*)pView);
  } else if (pWnd->IsKindOf(RUNTIME_CLASS(TTabWnd))) {
    TTabWnd *pTab = (TTabWnd*)pWnd;
    int nIndex = pTab->GetTabIndex();
    CWnd *pTabWnd = pTab->GetTabWnd(nIndex);
    if (updateFrame(pFrame, pTabWnd))
      return TRUE;
  }
  return FALSE;
}

// Resize tab
void TTabWnd::ResizeTab(int cx, int cy)
{
  CRect rect;
  CWnd *pParent = (CWnd*)GetParent();
  ASSERT(pParent);
  pParent->GetClientRect(&rect); 

  if (pParent->IsKindOf(RUNTIME_CLASS(CSplitterWnd))) {
    CSplitterWnd *splitter = (CSplitterWnd*)pParent;
    ASSERT(pParent);
    int row,col;
    splitter->IsChildPane(this,row,col);
    splitter->RecalcLayout();
  } else if (pParent->IsKindOf(RUNTIME_CLASS(CFrameWnd))) {
    m_bLockFlag = TRUE;
    pParent->RepositionBars(0, 0xFFFF, AFX_IDW_PANE_FIRST, CWnd::reposQuery, &rect);
    MoveWindow(rect.left,rect.top,rect.Width(),rect.Height());
    m_bLockFlag = FALSE;
  }

  m_bLockFlag = TRUE; // reentrancy check (might get called recursivly from OnSize)
  CWnd *pWnd;
  TTabItemList::iterator iterator;
  for (iterator = m_TabList.begin(); iterator != m_TabList.end(); iterator++) {
    pWnd = (*iterator)->m_pWnd;
    if (cx == -1 && cy == -1) {
      switch (m_nTabPos) {
      case TP_TOP:
        pWnd->MoveWindow(1, TABWND_HEIGHT+1, 
                         rect.Width()-2, rect.Height()-TABWND_HEIGHT-2);
        break;
      case TP_BOTTOM:
        pWnd->MoveWindow(1, 0, rect.Width()-2, rect.Height()-TABWND_HEIGHT);
        break;
      }
    } else {
      switch (m_nTabPos) {
      case TP_TOP:
        pWnd->MoveWindow(1, TABWND_HEIGHT+1, cx, cy-TABWND_HEIGHT-2);
        break;
      case TP_BOTTOM:
        pWnd->MoveWindow(1, 0, cx, cy-TABWND_HEIGHT);
        break;
      }
    }
  }
  m_bLockFlag=FALSE;
}

// Erase area where the tabs are displayed
BOOL TTabWnd::OnEraseBkgnd(CDC* pDC)
{
  ASSERT(pDC);

  CRect rect;
  GetClientRect(&rect);
  switch (m_nTabPos) {
  case TP_TOP:
    pDC->FillSolidRect(&CRect(0, 0, rect.right, TABWND_HEIGHT), 
                      ::GetSysColor(COLOR_BTNFACE));
    break;
  case TP_BOTTOM:
    pDC->FillSolidRect(&CRect(0, rect.bottom-TABWND_HEIGHT-3, rect.right, rect.bottom), 
                      ::GetSysColor(COLOR_BTNFACE));
    break;
  }
  return TRUE;
}

// Handle couse click on tabs
void TTabWnd::OnLButtonUp(UINT nFlags, CPoint point)
{
  int nNewTab = HitTest(point.x, point.y);
  SetActivePane(nNewTab);
  CWnd::OnLButtonUp(nFlags, point);
}

// Handle resize
LRESULT TTabWnd::OnSizeParent(WPARAM, LPARAM lParam)
{
  if (m_bLockFlag)
    return 0;