/** Compute the size of a tray. */
void ComputeTraySize(TrayType *tp)
{
TrayComponentType *cp;
const ScreenType *sp;
int x, y;
/* Determine the first dimension. */
if(tp->layout == LAYOUT_HORIZONTAL) {
if(tp->height == 0) {
tp->height = ComputeMaxHeight(tp);
}
if(tp->height == 0) {
tp->height = DEFAULT_TRAY_HEIGHT;
}
} else {
if(tp->width == 0) {
tp->width = ComputeMaxWidth(tp);
}
if(tp->width == 0) {
tp->width = DEFAULT_TRAY_WIDTH;
}
}
/* Now at least one size is known. Inform the components. */
for(cp = tp->components; cp; cp = cp->next) {
if(cp->SetSize) {
if(tp->layout == LAYOUT_HORIZONTAL) {
(cp->SetSize)(cp, 0, tp->height);
} else {
(cp->SetSize)(cp, tp->width, 0);
}
}
}
/* Initialize the coordinates. */
tp->x = tp->requestedX;
tp->y = tp->requestedY;
/* Determine on which screen the tray will reside. */
switch(tp->valign) {
case TALIGN_TOP:
y = 0;
break;
case TALIGN_BOTTOM:
y = rootHeight - 1;
break;
case TALIGN_CENTER:
y = 1 + rootHeight / 2;
break;
default:
if(tp->y < 0) {
y = rootHeight + tp->y;
} else {
y = tp->y;
}
break;
}
switch(tp->halign) {
case TALIGN_LEFT:
x = 0;
break;
case TALIGN_RIGHT:
x = rootWidth - 1;
break;
case TALIGN_CENTER:
x = 1 + rootWidth / 2;
break;
default:
if(tp->x < 0) {
x = rootWidth + tp->x;
} else {
x = tp->x;
}
break;
}
sp = GetCurrentScreen(x, y);
/* Determine the missing dimension. */
if(tp->layout == LAYOUT_HORIZONTAL) {
if(tp->width == 0) {
if(CheckHorizontalFill(tp)) {
tp->width = sp->width;
} else {
tp->width = ComputeTotalWidth(tp);
}
if(tp->width == 0) {
tp->width = DEFAULT_TRAY_WIDTH;
}
}
} else {
if(tp->height == 0) {
if(CheckVerticalFill(tp)) {
tp->height = sp->height;
} else {
tp->height = ComputeTotalHeight(tp);
}
if(tp->height == 0) {
tp->height = DEFAULT_TRAY_HEIGHT;
}
}
}
/* Compute the tray location. */
switch(tp->valign) {
case TALIGN_TOP:
tp->y = sp->y - TRAY_BORDER_SIZE;
break;
case TALIGN_BOTTOM:
tp->y = sp->y + sp->height - tp->height + TRAY_BORDER_SIZE;
break;
case TALIGN_CENTER:
tp->y = sp->y + (sp->height - tp->height) / 2;
break;
default:
if(tp->y < 0) {
tp->y = sp->y + sp->height - tp->height + TRAY_BORDER_SIZE;
} else {
tp->y -= TRAY_BORDER_SIZE;
}
break;
}
switch(tp->halign) {
case TALIGN_LEFT:
tp->x = sp->x - TRAY_BORDER_SIZE;
break;
case TALIGN_RIGHT:
tp->x = sp->x + sp->width - tp->width + TRAY_BORDER_SIZE;
break;
case TALIGN_CENTER:
tp->x = sp->x + (sp->width - tp->width) / 2;
break;
default:
if(tp->x < 0) {
tp->x = sp->x + sp->width - tp->width + TRAY_BORDER_SIZE;
} else {
tp->x -= TRAY_BORDER_SIZE;
}
break;
}
}
/** Compute the size of a tray. */
void ComputeTraySize(TrayType *tp) {
TrayComponentType *cp;
/* Determine the first dimension. */
if(tp->layout == LAYOUT_HORIZONTAL) {
if(tp->height == 0) {
tp->height = ComputeMaxHeight(tp);
}
if(tp->height == 0) {
tp->height = DEFAULT_TRAY_HEIGHT;
}
} else {
if(tp->width == 0) {
tp->width = ComputeMaxWidth(tp);
}
if(tp->width == 0) {
tp->width = DEFAULT_TRAY_WIDTH;
}
}
/* Now at least one size is known. Inform the components. */
for(cp = tp->components; cp; cp = cp->next) {
if(cp->SetSize) {
if(tp->layout == LAYOUT_HORIZONTAL) {
(cp->SetSize)(cp, 0, tp->height - 2 * tp->border);
} else {
(cp->SetSize)(cp, tp->width - 2 * tp->border, 0);
}
}
}
/* Determine the missing dimension. */
if(tp->layout == LAYOUT_HORIZONTAL) {
if(tp->width == 0) {
if(CheckHorizontalFill(tp)) {
tp->width = rootWidth;
} else {
tp->width = ComputeTotalWidth(tp);
}
if(tp->width == 0) {
tp->width = DEFAULT_TRAY_WIDTH;
}
}
} else {
if(tp->height == 0) {
if(CheckVerticalFill(tp)) {
tp->height = rootHeight;
} else {
tp->height = ComputeTotalHeight(tp);
}
if(tp->height == 0) {
tp->height = DEFAULT_TRAY_HEIGHT;
}
}
}
/* Compute the tray location. */
switch(tp->valign) {
case TALIGN_TOP:
tp->y = 0;
break;
case TALIGN_BOTTOM:
tp->y = rootHeight - tp->height + 1;
break;
case TALIGN_CENTER:
tp->y = rootHeight / 2 - tp->height / 2;
break;
default:
if(tp->y < 0) {
tp->y = rootHeight + tp->y - tp->height + 1;
}
break;
}
switch(tp->halign) {
case TALIGN_LEFT:
tp->x = 0;
break;
case TALIGN_RIGHT:
tp->x = rootWidth - tp->width + 1;
break;
case TALIGN_CENTER:
tp->x = rootWidth / 2 - tp->width / 2;
break;
default:
if(tp->x < 0) {
tp->x = rootWidth + tp->x - tp->width + 1;
}
break;
}
}
