//
// UspAttrTextOut
//
// Display a line of text previously analyzed with UspAnalyze. The stored
// ATTR[] visual-attribute list is used to stylize the text as it is drawn.
//
// Coloured text-display using Uniscribe is very complicated.
// Three passes are required if high-quality text output is the goal.
//
// Returns: adjusted x-coordinate
//
int WINAPI UspTextOut (
USPDATA * uspData,
HDC hdc,
int xpos,
int ypos,
int lineHeight,
int lineAdjustY,
RECT * bounds
)
{
HRGN hrgn, hrgnClip;
if(uspData->stringLen == 0 || uspData->glyphCount == 0)
return xpos;
hrgnClip = CreateRectRgn(0,0,1,1);
GetClipRgn(hdc, hrgnClip);
//
// 1. draw all background colours, including selection-highlights;
// selected areas are added to the HDC clipping region which prevents
// step#2 (below) from drawing over them
//
SetBkMode(hdc, OPAQUE);
PaintBackground(uspData, hdc, xpos, ypos, lineHeight, bounds);
//
// 2. draw the text normally. Selected areas are left untouched
// because of the clipping-region created in step#1
//
SetBkMode(hdc, TRANSPARENT);
PaintForeground(uspData, hdc, xpos, ypos + lineAdjustY, bounds, FALSE);
//
// 3. redraw the text using a single text-selection-colour (i.e. white)
// in the same position, directly over the top of the text drawn in step#2
//
// Before we do this, the HDC clipping-region is inverted,
// so only selection areas are modified this time
//
hrgn = CreateRectRgnIndirect(bounds);
ExtSelectClipRgn(hdc, hrgn, RGN_XOR);
SetBkMode(hdc, TRANSPARENT);
xpos =
PaintForeground(uspData, hdc, xpos, ypos + lineAdjustY, bounds, TRUE);
// remove clipping regions
SelectClipRgn(hdc, hrgnClip);
DeleteObject(hrgn);
DeleteObject(hrgnClip);
return xpos;
}
void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
{
RECT rc;
::GetClientRect(GetHwnd(), &rc);
// draw the entire box in a memory DC
wxMemoryDC memdc;
wxBitmap bitmap(rc.right, rc.bottom);
memdc.SelectObject(bitmap);
PaintBackground(memdc, rc);
PaintForeground(memdc, rc);
// now only blit the static box border itself, not the interior, to avoid
// flicker when background is drawn below
//
// note that it seems to be faster to do 4 small blits here and then paint
// directly into wxPaintDC than painting background in wxMemoryDC and then
// blitting everything at once to wxPaintDC, this is why we do it like this
wxPaintDC dc(this);
int borderTop, border;
GetBordersForSizer(&borderTop, &border);
// top
dc.Blit(border, 0, rc.right - border, borderTop,
&memdc, border, 0);
// bottom
dc.Blit(border, rc.bottom - border, rc.right - border, border,
&memdc, border, rc.bottom - border);
// left
dc.Blit(0, 0, border, rc.bottom,
&memdc, 0, 0);
// right (note that upper and bottom right corners were already part of the
// first two blits so we shouldn't overwrite them here to avoi flicker)
dc.Blit(rc.right - border, borderTop,
border, rc.bottom - borderTop - border,
&memdc, rc.right - border, borderTop);
// create the region excluding box children
AutoHRGN hrgn((HRGN)MSWGetRegionWithoutChildren());
RECT rcWin;
::GetWindowRect(GetHwnd(), &rcWin);
::OffsetRgn(hrgn, -rcWin.left, -rcWin.top);
// and also the box itself
MSWGetRegionWithoutSelf((WXHRGN) hrgn, rc.right, rc.bottom);
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
HDCClipper clipToBg(GetHdcOf(*impl), hrgn);
// paint the inside of the box (excluding box itself and child controls)
PaintBackground(dc, rc);
}
