static void selSelect(rfbSelectData* m,int _index)
{
int delta;
if(_index==m->selected || _index<0 || _index>=m->listSize)
return;
if(m->selected>=0)
selPaintLine(m,m->selected-m->displayStart,FALSE);
if(_index<m->displayStart || _index>=m->displayStart+m->pageH) {
/* targetLine is the screen line in which the selected line will
be displayed.
targetLine = m->pageH/2 doesn't look so nice */
int targetLine = m->selected-m->displayStart;
int lineStart,lineEnd;
/* scroll */
if(_index<targetLine)
targetLine = _index;
else if(_index+m->pageH-targetLine>=m->listSize)
targetLine = _index+m->pageH-m->listSize;
delta = _index-(m->displayStart+targetLine);
if(delta>-m->pageH && delta<m->pageH) {
if(delta>0) {
lineStart = m->pageH-delta;
lineEnd = m->pageH;
rfbDoCopyRect(m->screen,m->x1,m->y1,m->x2,m->y1+lineStart*m->textH,
0,-delta*m->textH);
} else {
lineStart = 0;
lineEnd = -delta;
rfbDoCopyRect(m->screen,
m->x1,m->y1+lineEnd*m->textH,m->x2,m->y2,
0,-delta*m->textH);
}
} else {
lineStart = 0;
lineEnd = m->pageH;
}
m->displayStart += delta;
for(delta=lineStart;delta<lineEnd;delta++)
if(delta!=_index)
selPaintLine(m,delta,FALSE);
}
m->selected = _index;
selPaintLine(m,m->selected-m->displayStart,TRUE);
if(m->selChangedHook)
m->selChangedHook(_index);
/* todo: scrollbars */
}
/* before using this function, hide the cursor */
void vcScroll(vncConsolePtr c,int lineCount)
{
int y1,y2;
rfbScreenInfoPtr s=c->screen;
if(lineCount==0)
return;
/* rfbLog("begin scroll\n"); */
vcHideCursor(c);
c->dontDrawCursor=TRUE;
if(lineCount>=c->height || lineCount<=-c->height) {
y1=0; y2=s->height;
} else if(lineCount>0) {
y1=s->height-lineCount*c->cHeight; y2=s->height;
rfbDoCopyRect(s,0,0,s->width,y1,0,-lineCount*c->cHeight);
memmove(c->screenBuffer,
c->screenBuffer+(c->height-lineCount)*c->width,
(c->height-lineCount)*c->width);
#ifdef USE_ATTRIBUTE_BUFFER
if(c->attributeBuffer)
memmove(c->attributeBuffer,
c->attributeBuffer+(c->height-lineCount)*c->width,
(c->height-lineCount)*c->width);
#endif
} else {
y1=0; y2=-lineCount*c->cHeight;
rfbDoCopyRect(s,0,y2,s->width,s->height,0,-lineCount*c->cHeight);
memmove(c->screenBuffer-lineCount*c->width,
c->screenBuffer,
(c->height+lineCount)*c->width);
#ifdef USE_ATTRIBUTE_BUFFER
if(c->attributeBuffer)
memmove(c->attributeBuffer-lineCount*c->width,
c->attributeBuffer,
(c->height+lineCount)*c->width);
#endif
}
c->dontDrawCursor=FALSE;
memset(s->frameBuffer+y1*s->width,c->backColour,(y2-y1)*s->width);
rfbMarkRectAsModified(s,0,y1-c->cHeight,s->width,y2);
memset(c->screenBuffer+y1/c->cHeight*c->width,' ',
(y2-y1)/c->cHeight*c->width);
#ifdef USE_ATTRIBUTE_BUFFER
if(c->attributeBuffer)
memset(c->attributeBuffer+y1/c->cHeight*c->width,0x07,
(y2-y1)/c->cHeight*c->width);
#endif
/* rfbLog("end scroll\n"); */
}
int main(int argc,char** argv)
{
int width=400,height=300,w=20,x,y;
double r,phi=0;
rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,width,height,8,3,4);
server->frameBuffer=(char*)malloc(width*height*4);
initBackground(server);
server->deferUpdateTime=0;
rfbInitServer(server);
r=0;
while(1) {
if(r<=0) {
initBackground(server);
rfbMarkRectAsModified(server,0,0,width,height);
r=0.43;
phi=0;
} else {
r-=0.0001;
phi+=0.02;
if(phi>2*M_PI)
phi-=2*M_PI;
}
x=width*(0.5+cos(phi)*r);
y=height*(0.5+sin(phi)*r);
if(x>=0 && y>=0 && x+w<=width && y+w<=height) {
unsigned int dx=width*0.5*(1-cos(phi)*r)-x,
dy=height*0.5*(1-sin(phi)*r)-y;
rfbDoCopyRect(server,x,y,x+w,y+w,-dx,-dy);
}
rfbProcessEvents(server,50000);
}
return(0);
}
void vcInsertCharacters(vncConsolePtr c, int f)
{
int g, x, y;
g = c->width - c->x - f;
if( g > 0 )
{
vcHideCursor(c);
memmove(c->screenBuffer + c->y * c->width + c->x + f,
c->screenBuffer + c->y * c->width + c->x,
g);
#ifdef USE_ATTRIBUTE_BUFFER
if( c->attributeBuffer )
memmove(c->attributeBuffer + c->y * c->width + c->x + f,
c->attributeBuffer + c->y * c->width + c->x,
g);
#endif
x = c->x * c->cWidth;
y = c->y * c->cHeight;
rfbDoCopyRect( c->screen,
x + f * c->cWidth, y,
c->screen->width,
y + c->cHeight,
f * c->cWidth, 0);
}
// TODO: Should we put f*' ' here or rely on the fact that client will provide
// proper ones after insert request?
}
void vcDeleteCharacters(vncConsolePtr c, int f)
{
int g, x, y;
g = c->width - c->x - f;
x = c->x * c->cWidth;
y = c->y * c->cHeight;
vcHideCursor(c);
if (g > 0)
{
memcpy(c->screenBuffer + c->y * c->width + c->x,
c->screenBuffer + c->y * c->width + c->x + f,
g);
#ifdef USE_ATTRIBUTE_BUFFER
if( c->attributeBuffer )
memcpy(c->attributeBuffer + c->y * c->width + c->x,
c->attributeBuffer + c->y * c->width + c->x + f,
g);
#endif
rfbDoCopyRect( c->screen,
x, y,
c->screen->width - f * c->cWidth, y + c->cHeight,
- f * c->cWidth, 0);
}
memset( c->screenBuffer + c->y * c->width + g, ' ', f );
#ifdef USE_ATTRIBUTE_BUFFER
if( c->attributeBuffer )
memset( c->attributeBuffer + c->y * c->width + g, 0x07, f );
#endif
rfbFillRect( c->screen,
x + g * c->cWidth, y,
c->screen->width, y + c->cHeight,
c->backColour);
}
void vcDeleteLines(vncConsolePtr c, int from, int f)
{
int g, y;
g = c->sheight - from - f;
y = from * c->cHeight;
vcHideCursor(c);
if( g > 0 )
{
memcpy(c->screenBuffer + from * c->width,
c->screenBuffer + (from + f) * c->width,
g * c->width);
#ifdef USE_ATTRIBUTE_BUFFER
if( c->attributeBuffer )
memcpy(c->attributeBuffer + from * c->width,
c->attributeBuffer + (from + f) * c->width,
g * c->width);
#endif
rfbDoCopyRect( c->screen,
0, from * c->cHeight,
c->screen->width,
(c->sheight - f) * c->cHeight,
0, - f * c->cHeight);
}
// Fill inserted line(s) with spaces
memset(c->screenBuffer + (from + g) * c->width,
' ',
f * c->width);
#ifdef USE_ATTRIBUTE_BUFFER
if(c->attributeBuffer)
memset(c->screenBuffer + (from + g) * c->width,
0x07,
f * c->width);
#endif
rfbFillRect( c->screen,
0, y + g * c->cHeight,
c->screen->width, c->sheight * c->cHeight,
c->backColour);
}
static void output(rfbScreenInfoPtr s,char* line)
{
rfbDoCopyRect(s,0,0,width,height-lineHeight,0,-lineHeight);
rfbDrawString(s,&default8x16Font,10,lineY,line,0x01);
rfbLog("%s\n",line);
}
void output(rfbScreenInfoPtr s,char* line)
{
rfbDoCopyRect(s,0,0,640,480-lineHeight,0,-lineHeight);
rfbDrawString(s,&default8x16Font,10,lineY,line,0x01);
fprintf(stderr,"%s\n",line);
}
