void rfbDoCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
{
sraRectangleIterator* i;
sraRect rect;
int j,widthInBytes,bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8,
rowstride=rfbScreen->paddedWidthInBytes;
char *in,*out;
rfbUndrawCursor(rfbScreen);
/* copy it, really */
i = sraRgnGetReverseIterator(copyRegion,dx<0,dy<0);
while(sraRgnIteratorNext(i,&rect)) {
widthInBytes = (rect.x2-rect.x1)*bpp;
out = rfbScreen->frameBuffer+rect.x1*bpp+rect.y1*rowstride;
in = rfbScreen->frameBuffer+(rect.x1-dx)*bpp+(rect.y1-dy)*rowstride;
if(dy<0)
for(j=rect.y1;j<rect.y2;j++,out+=rowstride,in+=rowstride)
memmove(out,in,widthInBytes);
else {
out += rowstride*(rect.y2-rect.y1-1);
in += rowstride*(rect.y2-rect.y1-1);
for(j=rect.y2-1;j>=rect.y1;j--,out-=rowstride,in-=rowstride)
memmove(out,in,widthInBytes);
}
}
rfbScheduleCopyRegion(rfbScreen,copyRegion,dx,dy);
}
void
defaultPtrAddEvent(int buttonMask, int x, int y, rfbClientPtr cl)
{
if(x!=cl->screen->cursorX || y!=cl->screen->cursorY) {
cl->cursorWasMoved = TRUE;
if(cl->screen->cursorIsDrawn)
rfbUndrawCursor(cl->screen);
LOCK(cl->screen->cursorMutex);
if(!cl->screen->cursorIsDrawn) {
cl->screen->cursorX = x;
cl->screen->cursorY = y;
}
UNLOCK(cl->screen->cursorMutex);
}
}
int rfbSelectBox(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
char** list,
int x1,int y1,int x2,int y2,
Pixel colour,Pixel backColour,
int border,SelectionChangedHookPtr selChangedHook)
{
int bpp = rfbScreen->bitsPerPixel/8;
char* frameBufferBackup;
void* screenDataBackup = rfbScreen->screenData;
KbdAddEventProcPtr kbdAddEventBackup = rfbScreen->kbdAddEvent;
PtrAddEventProcPtr ptrAddEventBackup = rfbScreen->ptrAddEvent;
GetCursorProcPtr getCursorPtrBackup = rfbScreen->getCursorPtr;
DisplayHookPtr displayHookBackup = rfbScreen->displayHook;
rfbSelectData selData;
int i,j,k;
int fx1,fy1,fx2,fy2; /* for font bbox */
if(list==0 || *list==0)
return(-1);
rfbWholeFontBBox(font, &fx1, &fy1, &fx2, &fy2);
selData.textH = fy2-fy1;
/* I need at least one line for the choice and one for the buttons */
if(y2-y1<selData.textH*2+3*border)
return(-1);
selData.xhot = -fx1;
selData.yhot = -fy2;
selData.x1 = x1+border;
selData.y1 = y1+border;
selData.y2 = y2-selData.textH-3*border;
selData.x2 = x2-2*border;
selData.pageH = (selData.y2-selData.y1)/selData.textH;
i = rfbWidthOfString(font,okStr);
j = rfbWidthOfString(font,cancelStr);
selData.buttonWidth= k = 4*border+(i<j)?j:i;
selData.okBX = x1+(x2-x1-2*k)/3;
if(selData.okBX<x1+border) /* too narrow! */
return(-1);
selData.cancelBX = x1+k+(x2-x1-2*k)*2/3;
selData.okX = selData.okBX+(k-i)/2;
selData.cancelX = selData.cancelBX+(k-j)/2;
selData.okY = y2-border;
rfbUndrawCursor(rfbScreen);
frameBufferBackup = (char*)malloc(bpp*(x2-x1)*(y2-y1));
selData.state = SELECTING;
selData.screen = rfbScreen;
selData.font = font;
selData.list = list;
selData.colour = colour;
selData.backColour = backColour;
for(i=0;list[i];i++);
selData.selected = i;
selData.listSize = i;
selData.displayStart = i;
selData.lastButtons = 0;
selData.selChangedHook = selChangedHook;
rfbScreen->screenData = &selData;
rfbScreen->kbdAddEvent = selKbdAddEvent;
rfbScreen->ptrAddEvent = selPtrAddEvent;
rfbScreen->getCursorPtr = selGetCursorPtr;
rfbScreen->displayHook = 0;
/* backup screen */
for(j=0;j<y2-y1;j++)
memcpy(frameBufferBackup+j*(x2-x1)*bpp,
rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
(x2-x1)*bpp);
/* paint list and buttons */
rfbFillRect(rfbScreen,x1,y1,x2,y2,colour);
selPaintButtons(&selData,FALSE,FALSE);
selSelect(&selData,0);
/* modal loop */
while(selData.state == SELECTING)
rfbProcessEvents(rfbScreen,20000);
/* copy back screen data */
for(j=0;j<y2-y1;j++)
memcpy(rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp,
frameBufferBackup+j*(x2-x1)*bpp,
(x2-x1)*bpp);
free(frameBufferBackup);
rfbMarkRectAsModified(rfbScreen,x1,y1,x2,y2);
rfbScreen->screenData = screenDataBackup;
rfbScreen->kbdAddEvent = kbdAddEventBackup;
rfbScreen->ptrAddEvent = ptrAddEventBackup;
rfbScreen->getCursorPtr = getCursorPtrBackup;
rfbScreen->displayHook = displayHookBackup;
if(selData.state==CANCEL)
selData.selected=-1;
return(selData.selected);
}
void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
{
rfbClientIteratorPtr iterator;
rfbClientPtr cl;
rfbUndrawCursor(rfbScreen);
iterator=rfbGetClientIterator(rfbScreen);
while((cl=rfbClientIteratorNext(iterator))) {
LOCK(cl->updateMutex);
if(cl->useCopyRect) {
sraRegionPtr modifiedRegionBackup;
if(!sraRgnEmpty(cl->copyRegion)) {
if(cl->copyDX!=dx || cl->copyDY!=dy) {
/* if a copyRegion was not yet executed, treat it as a
* modifiedRegion. The idea: in this case it could be
* source of the new copyRect or modified anyway. */
sraRgnOr(cl->modifiedRegion,cl->copyRegion);
sraRgnMakeEmpty(cl->copyRegion);
} else {
/* we have to set the intersection of the source of the copy
* and the old copy to modified. */
modifiedRegionBackup=sraRgnCreateRgn(copyRegion);
sraRgnOffset(modifiedRegionBackup,-dx,-dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
}
}
sraRgnOr(cl->copyRegion,copyRegion);
cl->copyDX = dx;
cl->copyDY = dy;
/* if there were modified regions, which are now copied,
* mark them as modified, because the source of these can be overlapped
* either by new modified or now copied regions. */
modifiedRegionBackup=sraRgnCreateRgn(cl->modifiedRegion);
sraRgnOffset(modifiedRegionBackup,dx,dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
#if 0
//TODO: is this needed? Or does it mess up deferring?
/* while(!sraRgnEmpty(cl->copyRegion)) */ {
#ifdef HAVE_PTHREADS
if(!cl->screen->backgroundLoop)
#endif
{
sraRegionPtr updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
sraRgnOr(updateRegion,cl->copyRegion);
UNLOCK(cl->updateMutex);
rfbSendFramebufferUpdate(cl,updateRegion);
sraRgnDestroy(updateRegion);
continue;
}
}
#endif
} else {
sraRgnOr(cl->modifiedRegion,copyRegion);
}
TSIGNAL(cl->updateCond);
UNLOCK(cl->updateMutex);
}
rfbReleaseClientIterator(iterator);
}