void CTableFormatControl::OnPaint()
{
CPaintDC dc(this); // device context for painting
if (m_pTable != NULL)
{
CRect crInterior;
GetClientRect(crInterior);
Util::Draw3dBorder(
&dc,
crInterior,
GetSysColor(COLOR_BTNHILIGHT),
GetSysColor(COLOR_BTNSHADOW),
GetSysColor(COLOR_BTNFACE),
GetSysColor(COLOR_BTNTEXT),
RGB(255, 255, 255),
1,
TRUE,
TRUE,
FALSE);
// Set the DC.
m_rc.destination_hdc = dc.GetSafeHdc();
m_rc.set_info(m_rc.destination_hdc);
// Establish the palettes if necessary.
HPALETTE hOurPal = (HPALETTE)pOurPal->GetSafeHandle();
HPALETTE hOldPal = NULL;
if (m_rc.info.type == RASTER_TYPE_PALETTE)
{
hOldPal = ::SelectPalette(m_rc.destination_hdc, hOurPal, FALSE);
::RealizePalette(m_rc.destination_hdc);
}
REFRESH_EXTENT re;
// Build the refresh extent.
re.extent = m_rc.source_pbox;
re.refresh_type = REFRESH_ALL;
re.my_object = NULL;
re.update_object = NULL;
re.update_state = NULL;
BOOL fDrawn = !m_pDoc->draw_objects(&re, &m_rc);
ASSERT(fDrawn);
if (hOldPal != NULL)
{
::SelectPalette(m_rc.destination_hdc, hOldPal, FALSE);
}
}
}
void CDocumentPreview::DrawPreview(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// Find enclosing bounds for isolating objects
PBOX Bounds;
if (GetPreviewWnd() == NULL || !GetBounds(&Bounds))
{
// can not continue.
return;
}
HDC hdc = lpDrawItemStruct->hDC;
// If we are totally clipped, skip it.
RECT r;
if (GetClipBox(hdc, &r) == NULLREGION)
{
return;
}
// Draw a nice frame around our image
if (!m_fEncloseObjects)
{
DrawFrame(hdc);
}
PPNT Dims;
Dims.x = Bounds.x1 - Bounds.x0;
Dims.y = Bounds.y1 - Bounds.y0;
RedisplayContext rc;
rc.destination_hdc = hdc;
rc.hwnd = lpDrawItemStruct->hwndItem;
rc.set_info(rc.destination_hdc);
// Establish the palettes if necessary.
HPALETTE hOurPal = (HPALETTE)pOurPal->GetSafeHandle();
HPALETTE hOldPal = NULL;
if (rc.info.type == RASTER_TYPE_PALETTE)
{
hOldPal = SelectPalette(rc.destination_hdc, hOurPal, FALSE);
RealizePalette(rc.destination_hdc);
}
CRect crBounds = m_crPreview;
CRgn region;
region.CreateRectRgn(crBounds.left, crBounds.top, crBounds.right, crBounds.bottom);
HRGN hrgn = region;
::SelectClipRgn(hdc, hrgn);
rc.clip_region = hrgn;
rc.x_resolution = m_nXResolution;
rc.y_resolution = m_nYResolution;
rc.scaled_source_x0 = Bounds.x0*rc.x_resolution;
rc.scaled_source_y0 = Bounds.y0*rc.y_resolution;
rc.destination_x0 = crBounds.left;
rc.destination_y0 = crBounds.top;
rc.destination_rect = crBounds;
rc.clip_rect = rc.destination_rect;
rc.outline_gamma_curve =
rc.bitmap_gamma_curve = screen_gamma_curve;
rc.source_pbox = Bounds;
PCOORD Scale;
int n;
if (Dims.x > Dims.y)
{
Scale = scale_pcoord(Dims.x, rc.x_resolution, PAGE_RESOLUTION);
n = crBounds.Width();
}
else
{
Scale = scale_pcoord(Dims.y, rc.y_resolution, PAGE_RESOLUTION);
n = crBounds.Height();
}
while (Scale > 32000)
{
n >>= 1;
Scale >>= 1;
}
if (n == 0)
{
n++;
}
rc.SetScaling(n, (USHORT)Scale);
// Install the abort interrupt check
rc.set_check_interrupt(standard_check_interrupt, (VOIDPTR)&rc);
REFRESH_EXTENT re;
// Build the refresh extent.
re.extent = rc.source_pbox;
re.refresh_type = REFRESH_ALL;
re.my_object = NULL;
re.update_object = NULL;
re.update_state = NULL;
BOOL fDrawn = (m_fForceToFront) ?
!m_pDoc->DrawPreview(&re, &rc) : !m_pDoc->CPmwDoc::DrawPreview(&re, &rc);
if (!fDrawn)
{
UpdateState* ustate = re.update_state;
if (ustate != NULL)
{
switch (ustate->type)
{
case UPDATE_TYPE_Interrupted:
{
// This should not happen...
delete ustate;
// Fall through to...
}
case UPDATE_TYPE_Terminated:
{
// Try again later
break;
}
default:
{
// Ignore other types (e.g. "error")
fDrawn = TRUE;
break;
}
}
}
if (!fDrawn)
{
::InvalidateRect(lpDrawItemStruct->hwndItem, &m_crPreview, FALSE);
}
}
if (hOldPal != NULL)
{
SelectPalette(rc.destination_hdc, hOldPal, FALSE);
}
}