void CBigScrollView::SetScaleToFitSize(SIZE sizeTotal)
{
// do not use CScrollView::SetScaleToFit();
// this function change the size of the view !
wxSize sizeClient, sizeSb;
GetTrueClientSize(sizeClient, sizeSb);
if (m_nMapMode != MM_TEXT)
{
wxASSERT(m_nMapMode > 0); // must be set
CWindowDC dc(NULL);
dc.SetMapMode(m_nMapMode);
dc.DPtoLP(&sizeClient);
}
if (sizeClient.cy < MulDiv(sizeTotal.cy, sizeClient.cx, sizeTotal.cx))
{
// add 1% to eliminate scroll bars
sizeTotal.cy = MulDiv(sizeTotal.cy, 101, 100);
sizeTotal.cx = MulDiv(sizeTotal.cx, sizeClient.cy, sizeTotal.cy);
sizeTotal.cy = sizeClient.cy;
}
else
{
// add 1% to eliminate scroll bars
sizeTotal.cx = MulDiv(sizeTotal.cx, 101, 100);
sizeTotal.cx = sizeClient.cx;
sizeTotal.cy = MulDiv(sizeTotal.cy, sizeClient.cx, sizeTotal.cx);
}
SetScrollSizes(m_nMapMode, sizeTotal);
}
// Send the mouse message
void CRDVView::SendMouseMessage(WORD wWM,UINT nFlags,CPoint Point,short zDelta)
{
// Transmit the mouse event
CPoint MousePosition = GetScrollPosition();
// Test for zooming
if (!m_bViewZoom)
{
// Get the client area
CSize size,sizeSb;
GetTrueClientSize(size,sizeSb);
CRect Client;
GetClientRect(&Client);
// Get floating point versions of the coordinates
double dPointX = (double)Point.x;
double dPointY = (double)Point.y;
double dWidth = (double)m_cxWidth;
double dHeight = (double)m_cyHeight;
double dSizeX = (double)Client.Width();
double dSizeY = (double)Client.Height();
// Adjust mouse coordinate to match the zoom out aspect ratio
dPointX = dWidth / dSizeX * dPointX + 0.5;
dPointY = dHeight / dSizeY * dPointY + 0.5;
// Assign the new mouse coordinate
Point.x = (LONG)dPointX;
Point.y = (LONG)dPointY;
}
else
{
// Factor in the scroll positions
Point += MousePosition;
}
// Test the keystate
nFlags = 0;
if (GetKeyState(VK_CONTROL) & 0x8000)
nFlags |= 1;
if (GetKeyState(VK_SHIFT) & 0x8000)
nFlags |= 2;
// Add the mouse message
m_vMouseMsg.push_back(CMouseMsg(wWM,nFlags,Point,zDelta));
}
CSize CPreviewView::CalcPageDisplaySize()
// calculate the current page size
// set 'm_nSecondPageOffset' to start of second page
// return size of current page less margins
{
CSize windowSize, scrollSize;
GetTrueClientSize(windowSize, scrollSize);
// subtract out vertical scrollbar if zoomed out and page range is known
// and there is more than one page.
if (m_nZoomState == ZOOM_OUT && (m_pPreviewInfo->GetMaxPage() != 0xffff) &&
(m_pPreviewInfo->GetMaxPage() - m_pPreviewInfo->GetMinPage() != 0))
windowSize.cx -= scrollSize.cx;
m_nSecondPageOffset = (windowSize.cx - PREVIEW_MARGIN) / 2;
windowSize.cx = (m_nPages == 2) ? (windowSize.cx - 3*PREVIEW_MARGIN) / 2 :
windowSize.cx - 2*PREVIEW_MARGIN;
windowSize.cy -= 2*PREVIEW_MARGIN;
return windowSize;
}
void CScrollWnd::UpdateBars()
{
// UpdateBars may cause window to be resized - ignore those resizings
if (m_bInsideUpdate)
return; // Do not allow recursive calls
// Lock out recursion
m_bInsideUpdate = TRUE;
// update the horizontal to reflect reality
// NOTE: turning on/off the scrollbars will cause 'OnSize' callbacks
ASSERT(m_totalDev.cx >= 0 && m_totalDev.cy >= 0);
CRect rectClient;
BOOL bCalcClient = TRUE;
// allow parent to do inside-out layout first
CWnd* pParentWnd = GetParent();
if (pParentWnd != NULL)
{
// if parent window responds to this message, use just
// client area for scroll bar calc -- not "true" client area
if ((BOOL)pParentWnd->SendMessage(WM_RECALCPARENT, 0,
(LPARAM)(LPCRECT)&rectClient) != 0)
{
// use rectClient instead of GetTrueClientSize for
// client size calculation.
bCalcClient = FALSE;
}
}
CSize sizeClient;
CSize sizeSb;
if (bCalcClient)
{
// get client rect
if (!GetTrueClientSize(sizeClient, sizeSb))
{
// no room for scroll bars (common for zero sized elements)
CRect rect;
GetClientRect(&rect);
if (rect.right > 0 && rect.bottom > 0)
{
// if entire client area is not invisible, assume we have
// control over our scrollbars
EnableScrollBarCtrl(SB_BOTH, FALSE);
}
m_bInsideUpdate = FALSE;
return;
}
}
else
{
// let parent window determine the "client" rect
GetScrollBarSizes(sizeSb);
sizeClient.cx = rectClient.right - rectClient.left;
sizeClient.cy = rectClient.bottom - rectClient.top;
}
// enough room to add scrollbars
CSize sizeRange;
CPoint ptMove;
CSize needSb;
// get the current scroll bar state given the true client area
GetScrollBarState(sizeClient, needSb, sizeRange, ptMove, bCalcClient);
if (needSb.cx)
sizeClient.cy -= sizeSb.cy;
if (needSb.cy)
sizeClient.cx -= sizeSb.cx;
// first scroll the window as needed
ScrollToDevicePosition(ptMove); // will set the scroll bar positions too
// this structure needed to update the scrollbar page range
SCROLLINFO info;
info.fMask = SIF_PAGE|SIF_RANGE;
info.nMin = 0;
// now update the bars as appropriate
EnableScrollBarCtrl(SB_HORZ, needSb.cx);
if (needSb.cx)
{
info.nPage = sizeClient.cx;
info.nMax = m_totalDev.cx-1;
if (!SetScrollInfo(SB_HORZ, &info, TRUE))
SetScrollRange(SB_HORZ, 0, sizeRange.cx, TRUE);
}
EnableScrollBarCtrl(SB_VERT, needSb.cy);
if (needSb.cy)
{
info.nPage = sizeClient.cy;
info.nMax = m_totalDev.cy-1;
if (!SetScrollInfo(SB_VERT, &info, TRUE))
SetScrollRange(SB_VERT, 0, sizeRange.cy, TRUE);
}
// remove recursion lockout
m_bInsideUpdate = FALSE;
}
void CXTPPropertyPage::UpdateBars()
{
if (m_totalDev == CSize(0, 0) || !m_bCreated)
return;
// UpdateBars may cause window to be resized - ignore those resizings
if (m_bInsideUpdate)
return; // Do not allow recursive calls
// Lock out recursion
m_bInsideUpdate = TRUE;
// update the horizontal to reflect reality
// NOTE: turning on/off the scrollbars will cause 'OnSize' callbacks
ASSERT(m_totalDev.cx >= 0 && m_totalDev.cy >= 0);
CRect rectClient;
BOOL bCalcClient = TRUE;
CSize sizeClient;
CSize sizeSb;
// get client rect
if (!GetTrueClientSize(sizeClient, sizeSb))
{
// no room for scroll bars (common for zero sized elements)
CRect rect;
GetClientRect(&rect);
if (rect.right > 0 && rect.bottom > 0)
{
// if entire client area is not invisible, assume we have
// control over our scrollbars
EnableScrollBarCtrl(SB_BOTH, FALSE);
}
m_bInsideUpdate = FALSE;
return;
}
// enough room to add scrollbars
CSize sizeRange;
CPoint ptMove;
CSize needSb;
// get the current scroll bar state given the true client area
GetScrollBarState(sizeClient, needSb, sizeRange, ptMove, bCalcClient);
if (needSb.cx)
sizeClient.cy -= sizeSb.cy;
if (needSb.cy)
sizeClient.cx -= sizeSb.cx;
// first scroll the window as needed
ScrollToDevicePosition(ptMove); // will set the scroll bar positions too
// this structure needed to update the scrollbar page range
SCROLLINFO info;
info.fMask = SIF_PAGE|SIF_RANGE;
info.nMin = 0;
// now update the bars as appropriate
EnableScrollBarCtrl(SB_HORZ, needSb.cx);
if (needSb.cx)
{
info.nPage = sizeClient.cx;
info.nMax = m_totalDev.cx-1;
if (!SetScrollInfo(SB_HORZ, &info, TRUE))
SetScrollRange(SB_HORZ, 0, sizeRange.cx, TRUE);
}
EnableScrollBarCtrl(SB_VERT, needSb.cy);
if (needSb.cy)
{
info.nPage = sizeClient.cy;
info.nMax = m_totalDev.cy-1;
if (!SetScrollInfo(SB_VERT, &info, TRUE))
SetScrollRange(SB_VERT, 0, sizeRange.cy, TRUE);
}
// remove recursion lockout
m_bInsideUpdate = FALSE;
}
