bool CUIVertScrollBar::SendChildMessage(int message,int p1,int p2,SDL_Surface *si)
{
switch (message)
{
case UIEV_LBUTTONDOWN:
{
int mx,my;
GETMOUSEPOS(p1,&mx,&my);
if (my<y+arrowlng+slidepos)
{
baseval=MAX(min,baseval-nve);
SendChildMessage(INTERNEV_REDRAW,0,0,si);
}
else if (my>y+arrowlng+slidepos+lslidebar)
{
baseval=MIN(baseval+nve,max-nve+1);
SendChildMessage(INTERNEV_REDRAW,0,0,si);
}
else
{
barclickpos=my-slidepos-arrowlng-y;
SendChildMessage(INTERNEV_REDRAW,0,0,si);
}
return true;
}
case UIEV_LBUTTONUP:
{
if (barclickpos>=0)
{
barclickpos=-1;
return true;
}
return false;
}
case UIEV_MOUSEMOVE:
{
if (barclickpos>=0)
{
int mx,my;
GETMOUSEPOS(p1,&mx,&my);
if (my<=y+arrowlng)
{
my=y+arrowlng+1;
}
if (my>=y+h-arrowlng)
{
my=y+h-arrowlng-1;
}
int newstartpos=my-barclickpos-y-arrowlng; // new starting position
int nbaseval=min+(newstartpos*(valdomain-nve+1))/(lslidezone-lslidebar);
SetBaseVal(nbaseval);
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
return false;
}
case UIEV_DRAW:
{
lslidezone=h-(2*arrowlng);
valdomain=max-min;
slideregion.SaveRegion(si,x,y+arrowlng,w,lslidezone);
if (valdomain>nve)
{
lslidebar=(lslidezone*nve)/(valdomain+1);
}
else
{
lslidebar=-1;
}
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case INTERNEV_REDRAW:
{
if (lslidebar>-1)
{
// redraw background
slideregion.RestaurRegion(si);
// compute slidepos
slidepos=((baseval-min)*(lslidezone-lslidebar))/(valdomain-nve+1);
// draw slide
SGU_FillRectAlpha(si,x,y+arrowlng+slidepos,w,lslidebar,theme->WgtBack);
if (ismouseover)
{
SGU_RectShade(si,x,y+arrowlng+slidepos,w,lslidebar,theme->FHiCol,theme->FMidCol,theme->FLowCol);
}
else
{
SGU_RectShade(si,x,y+arrowlng+slidepos,w,lslidebar,theme->BHiCol,theme->BMidCol,theme->BLowCol);
}
return true;
}
return false;
}
case UIEV_GETMOUSEOVER:
{
ismouseover=true;
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case UIEV_LOSEMOUSEOVER:
{
ismouseover=false;
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case UIEV_LOSEFOCUS:
{
barclickpos=-1;
return true;
}
default:
{
return false;
}
}
}
bool CUIHorzValueBar::SendChildMessage(int message,int p1,int p2,SDL_Surface *si)
{
switch (message)
{
case UIEV_LBUTTONDOWN:
{
int mx,my;
GETMOUSEPOS(p1,&mx,&my);
if (abs(mx-(barlng+x+arrowlng))<CLICKTHRESHOLD)
{
dragged=true;
}
return true;
}
case UIEV_LBUTTONUP:
{
dragged=false;
return false;
}
case UIEV_MOUSEMOVE:
{
if (dragged)
{
int mx,my;
GETMOUSEPOS(p1,&mx,&my);
if (mx<=x+arrowlng)
{
mx=x+arrowlng+1;
}
if (mx>=x+w-arrowlng)
{
mx=x+h-arrowlng-1;
}
int newstartpos=mx-x-arrowlng; // new starting position
int nbaseval=min+(newstartpos*(max-min))/(lbarzone);
SetVal(nbaseval);
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
return false;
}
case UIEV_DRAW:
{
lbarzone=w-(2*arrowlng);
barregion.SaveRegion(si,x+arrowlng,y,lbarzone,h);
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case INTERNEV_REDRAW:
{
// redraw background
barregion.RestaurRegion(si);
// compute slidepos
barlng=((val-min)*(lbarzone))/(max-min);
// draw slide
SGU_FillRectAlpha(si,x+arrowlng,y,barlng,h,theme->WgtBack);
if (ismouseover)
{
SGU_RectShade(si,x+arrowlng,y,barlng,h,theme->FHiCol,theme->FMidCol,theme->FLowCol);
}
else
{
SGU_RectShade(si,x+arrowlng,y,barlng,h,theme->BHiCol,theme->BMidCol,theme->BLowCol);
}
return true;
}
case UIEV_GETMOUSEOVER:
{
ismouseover=true;
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case UIEV_LOSEMOUSEOVER:
{
ismouseover=false;
SendChildMessage(INTERNEV_REDRAW,0,0,si);
return true;
}
case UIEV_LOSEFOCUS:
{
dragged=false;
return true;
}
default:
{
return false;
}
}
}