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} else {
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY,SDL_DEFAULT_REPEAT_INTERVAL);
}
SDL_EnableUNICODE(1);
optionquery[1]=Q_margin;
left_margin=strtol(xrm_get_resource(resourcedb,optionquery,optionquery,2)?:"65",0,10);
}
// Widgets
static void draw_scrollbar(int*cur,int page,int max,int x0,int y0,int x1,int y1) {
Uint8*pix=screen->pixels;
Uint16 pitch=screen->pitch;
int x,y,m0,m1;
double f;
f=(y1-y0)/(double)(max+page);
if(*cur<0) *cur=0; else if(*cur>max) *cur=max;
m0=*cur*f+y0;
m1=(*cur+page)*f+y0;
pix+=y0*pitch;
SDL_LockSurface(screen);
for(y=y0;y<y1;y++) {
for(x=x0;x<x1;x++) pix[x]=y<m0?0xFF:y>m1?0xFF:(y^x)&1?0xF0:0xFF;
pix[x1]=0xFF;
pix+=pitch;
}
SDL_UnlockSurface(screen);
}
int scrollbar(int*cur,int page,int max,SDL_Event*ev,SDL_Rect*re) {
int x0=re?re->x:0;
int y0=re?re->y:0;
int x1=re?re->x+12:12;
int y1=re?re->y+re->h:screen->h;
int y;
double f;
switch(ev?ev->type:SDL_VIDEOEXPOSE) {
case SDL_MOUSEMOTION:
if(ev->motion.x<x0 || ev->motion.x>x1 || ev->motion.y<y0 || ev->motion.y>=y1) return 0;
if(ev->motion.state&SDL_BUTTON(2)) {
y=ev->motion.y;
goto move;
} else if(ev->motion.state&SDL_BUTTON(1)) {
set_cursor(XC_sb_up_arrow);
} else if(ev->motion.state&SDL_BUTTON(3)) {
set_cursor(XC_sb_down_arrow);
} else {
set_cursor(XC_sb_v_double_arrow);
}
return 1;
case SDL_MOUSEBUTTONDOWN:
if(ev->button.x<x0 || ev->button.x>x1 || ev->button.y<y0 || ev->button.y>=y1) return 0;
if(ev->button.button==2) {
y=ev->button.y;
goto move;
} else if(ev->button.button==1) {
set_cursor(XC_sb_up_arrow);
} else if(ev->button.button==3) {
set_cursor(XC_sb_down_arrow);
}
return 1;
case SDL_MOUSEBUTTONUP:
if(ev->button.x<x0 || ev->button.x>x1 || ev->button.y<y0 || ev->button.y>=y1) return 0;
f=(y1-y0)/(double)page;
y=(ev->button.y-y0+0.5)/f;
if(ev->button.button==1) {
*cur+=y;
} else if(ev->button.button==3) {
*cur-=y;
}
draw_scrollbar(cur,page,max,x0,y0,x1,y1);
SDL_Flip(screen);
set_cursor(XC_sb_v_double_arrow);
return 1;
case SDL_VIDEOEXPOSE:
draw_scrollbar(cur,page,max,x0,y0,x1,y1);
return 0;
default:
return 0;
}
move:
f=(y1-y0)/(double)(max+page);
*cur=(y-y0+0.5)/f;
draw_scrollbar(cur,page,max,x0,y0,x1,y1);
SDL_Flip(screen);
set_cursor(XC_sb_right_arrow);
return 1;
}
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