void CardRegion::PrepareDragBitmaps(int numtodrag)
{
RECT rect;
HDC hdc;
int icard;
int numcards = cardstack.NumCards();
int xoff, yoff;
if(nThreedCount > 1)
{
PrepareDragBitmapsThreed(numtodrag);
return;
}
//work out how big the bitmaps need to be
nDragCardWidth = (numtodrag - 1) * abs(xoffset) + __cardwidth;
nDragCardHeight = (numtodrag - 1) * abs(yoffset) + __cardheight;
//Create bitmap for the back-buffer
hdc = GetDC(NULL);
hdcBackGnd = CreateCompatibleDC(hdc);
hbmBackGnd = CreateCompatibleBitmap(hdc, nDragCardWidth, nDragCardHeight);
SelectObject(hdcBackGnd, hbmBackGnd);
//Create bitmap for the drag-image
hdcDragCard = CreateCompatibleDC(hdc);
hbmDragCard = CreateCompatibleBitmap(hdc, nDragCardWidth, nDragCardHeight);
SelectObject(hdcDragCard, hbmDragCard);
ReleaseDC(NULL, hdc);
UseNicePalette(hdcBackGnd, __hPalette);
UseNicePalette(hdcDragCard, __hPalette);
int realvisible = numcards / nThreedCount;
//if(numcards > 0 && realvisible == 0) realvisible = 1;
int iwhichcard = numcards - 1;
if(nThreedCount == 1) iwhichcard = 0;
//grab the first bit of background so we can prep the back buffer; do this by
//rendering the card stack (minus the card we are dragging) to the temporary
//background buffer, so it appears if we have lifted the card from the stack
//PaintRect(hdcBackGnd, &rect, crBackgnd);
SetRect(&rect, 0, 0, nDragCardWidth, nDragCardHeight);
xoff = calc_offset(xoffset, numcards, numtodrag, realvisible);
yoff = calc_offset(yoffset, numcards, numtodrag, realvisible);
parentWnd.PaintCardRgn(hdcBackGnd, 0, 0, nDragCardWidth, nDragCardHeight, xpos - xoff, ypos - yoff);
//
// Render the cardstack into the back-buffer. The stack
// has already had the dragcards removed, so just draw
// what is left
//
for(icard = 0; icard < realvisible; icard++)
{
Card card = cardstack.cardlist[iwhichcard];
int nCardVal;
nCardVal = card.FaceUp() ? card.Idx() : nBackCardIdx;
xoff = xoffset * icard + calc_offset(xoffset, numcards, numtodrag, realvisible);//- xoffset * ((numcards+numtodrag) / nThreedCount - numtodrag);
yoff = yoffset * icard + calc_offset(yoffset, numcards, numtodrag, realvisible);//- yoffset * ((numcards+numtodrag) / nThreedCount - numtodrag);
CardBlt(hdcBackGnd, xoff, yoff, nCardVal);
iwhichcard++;
}
//
// If there are no cards under this one, just draw the place holder
//
if(numcards == 0)
{
int xoff = 0, yoff = 0;
if(xoffset < 0) xoff = nDragCardWidth - __cardwidth;
if(yoffset < 0) yoff = nDragCardHeight - __cardheight;
switch(uEmptyImage)
{
case CS_EI_NONE:
//No need to draw anything: We already cleared the
//back-buffer before the main loop..
//SetRect(&rc, xoff, yoff, xoff+ __cardwidth, yoff + __cardheight);
//PaintRect(hdcBackGnd, &rc, MAKE_PALETTERGB(crBackgnd));
//parentWnd.PaintCardRgn(hdcBackGnd, xoff, yoff, __cardwidth, __cardheight, xpos, ypos);// + xoff, ypos + yoff);
break;
case CS_EI_SUNK:
DrawCard(hdcBackGnd, xoff, yoff, __hdcPlaceHolder, __cardwidth, __cardheight);
break;
case CS_EI_CIRC:
case CS_EI_X:
CardBlt(hdc, xoff, yoff, uEmptyImage);
break;
}
}
//
// now render the drag-cards into the dragcard image
//
PaintRect(hdcDragCard, &rect, crBackgnd);
for(icard = 0; icard < numtodrag; icard++)
{
int nCardVal;
if(xoffset >= 0) xoff = xoffset * icard;
else xoff = -xoffset * (numtodrag - icard - 1);
if(yoffset >= 0) yoff = yoffset * icard;
else yoff = -yoffset * (numtodrag - icard - 1);
Card card = dragstack.cardlist[icard];
nCardVal = card.FaceUp() ? card.Idx() : nBackCardIdx;
CardBlt(hdcDragCard, xoff, yoff, nCardVal);
}
}
void CardRegion::PrepareDragBitmapsThreed(int numtodrag)
{
RECT rect;
HDC hdc;
int icard;
int numunder = 0;
int iwhichcard;
int numcards = cardstack.NumCards();
//work out how big the bitmaps need to be
nDragCardWidth = (numtodrag - 1) * abs(xoffset) + __cardwidth;
nDragCardHeight = (numtodrag - 1) * abs(yoffset) + __cardheight;
//Create bitmap for the back-buffer
hdc = GetDC(NULL);
hdcBackGnd = CreateCompatibleDC(hdc);
hbmBackGnd = CreateCompatibleBitmap(hdc, nDragCardWidth, nDragCardHeight);
SelectObject(hdcBackGnd, hbmBackGnd);
//create bitmap for the drag-image
hdcDragCard = CreateCompatibleDC(hdc);
hbmDragCard = CreateCompatibleBitmap(hdc, nDragCardWidth, nDragCardHeight);
SelectObject(hdcDragCard, hbmDragCard);
ReleaseDC(NULL, hdc);
UseNicePalette(hdcBackGnd, __hPalette);
UseNicePalette(hdcDragCard, __hPalette);
//grab the first bit of background so we can prep the back buffer; do this by
//rendering the card stack (minus the card we are dragging) to the temporary
//background buffer, so it appears if we have lifted the card from the stack
//--SetRect(&rect, 0, 0, nDragCardWidth, nDragCardHeight);
//--PaintRect(hdcBackGnd, &rect, crBackgnd);
int threedadjust = numcards % nThreedCount == 0;
numunder = CalcApparentCards(numcards);
iwhichcard = (numcards+numtodrag) - numunder - 1;
if(nThreedCount == 1) iwhichcard = 0;
int xoff = calc_offset(xoffset, numunder, numtodrag, numunder);
int yoff = calc_offset(yoffset, numunder, numtodrag, numunder);
parentWnd.PaintCardRgn(hdcBackGnd, 0,0, nDragCardWidth,nDragCardHeight, xpos - xoff,ypos - yoff);
//
// Render the cardstack into the back-buffer. The stack
// has already had the dragcards removed, so just draw
// what is left
//
for(icard = 0; icard < numunder; icard++)
{
Card card = cardstack.cardlist[iwhichcard];
int nCardVal = card.FaceUp() ? card.Idx() : nBackCardIdx;
CardBlt(hdcBackGnd,
xoffset * icard - xoffset*(numunder-numtodrag+threedadjust),
yoffset * icard - yoffset*(numunder-numtodrag+threedadjust),
nCardVal);
iwhichcard++;
}
//
// If there are no cards under this one, just draw the place holder
//
if(numcards == 0)
{
switch(uEmptyImage)
{
case CS_EI_NONE:
//no need! we've already cleared the whole
//back-buffer before the main loop!
//SetRect(&rect, 0, 0, __cardwidth, __cardheight);
//PaintRect(hdcBackGnd, &rect, MAKE_PALETTERGB(crBackgnd));
break;
case CS_EI_SUNK:
DrawCard(hdcBackGnd, 0, 0, __hdcPlaceHolder, __cardwidth, __cardheight);
break;
case CS_EI_CIRC:
case CS_EI_X:
CardBlt(hdc, 0, 0, uEmptyImage);
break;
}
}
//
// now render the drag-cards into the dragcard image
//
PaintRect(hdcDragCard, &rect, crBackgnd);
for(icard = 0; icard < numtodrag; icard++)
{
Card card = dragstack.cardlist[icard];
int nCardVal = card.FaceUp() ? card.Idx() : nBackCardIdx;
CardBlt(hdcDragCard, xoffset * icard, yoffset * icard, nCardVal);
}
}
void CardRegion::Render(HDC hdc)
{
int cardnum = 0;
int numtodraw;
BOOL fDrawTips;
Update(); //Update this stack's card count + size
numtodraw = nNumApparentCards;
if(nFlashCount != 0)
{
if(fFlashVisible == false)
numtodraw = 0;
}
if(fVisible == 0) return;
cardnum = cardstack.NumCards() - numtodraw;
int counter;
for(counter = 0; counter < numtodraw; counter++)
{
int cardval;
int x = xoffset * counter + xpos;
int y = yoffset * counter + ypos;
//if about to draw last card, then actually draw the top card
if(counter == numtodraw - 1) cardnum = cardstack.NumCards() - 1;
Card card = cardstack.cardlist[cardnum];
cardval = card.Idx();
if(card.FaceDown())
cardval = nBackCardIdx; //card-back
//only draw the visible part of the card
if(counter < numtodraw - 1)
{
if(yoffset != 0 && xoffset != 0)
fDrawTips = FALSE;
else
fDrawTips = TRUE;
if((yoffset != 0 && abs(xoffset) == 1) || (xoffset != 0 && abs(yoffset) == 1))
fDrawTips = TRUE;
//draw horizontal strips
if(yoffset > 0)
{
DrawHorzCardStrip(hdc, x, y, cardval, yoffset, fDrawTips);
}
else if(yoffset < 0)
{
DrawHorzCardStrip(hdc, x, y+__cardheight+yoffset, cardval, yoffset, fDrawTips);
}
//draw some vertical bars
if(xoffset > 0)
{
DrawVertCardStrip(hdc, x, y, cardval, xoffset, fDrawTips);
}
else if(xoffset < 0)
{
DrawVertCardStrip(hdc, x+__cardwidth+xoffset, y, cardval, xoffset, fDrawTips);
}
if(yoffset != 0 && xoffset != 0)//fDrawTips == FALSE)
{
//if we didn't draw any tips, then this is a 2-dim stack
//(i.e, it goes at a diagonal).
//in this case, we need to fill in the small triangle in
//each corner!
DrawCardCorner(hdc, x, y, cardval, xoffset, yoffset);
}
}
//if the top card, draw the whole thing
else
{
CardBlt(hdc, x, y, cardval);
}
cardnum ++;
} //end of index
if(counter == 0) //if the cardstack is empty, then draw it that way
{
int x = xpos;
int y = ypos;
switch(uEmptyImage)
{
default:
case CS_EI_NONE:
//this wipes the RECT variable, so watch out!
//SetRect(&rect, x, y, x+__cardwidth, y+__cardheight);
//PaintRect(hdc, &rect, MAKE_PALETTERGB(crBackgnd));
parentWnd.PaintCardRgn(hdc, x, y, __cardwidth, __cardheight, x, y);
break;
case CS_EI_SUNK:
DrawCard(hdc, x, y, __hdcPlaceHolder, __cardwidth, __cardheight);
break;
case CS_EI_CIRC:
case CS_EI_X:
CardBlt(hdc, x, y, uEmptyImage);
break;
}
}
return;
}
