static void LayoutCell(txt_table_t *table, int x, int y,
int draw_x, int draw_y)
{
txt_widget_t *widget;
int col_width;
widget = table->widgets[y * table->columns + x];
col_width = widget->w;
// Adjust x position based on alignment property
switch (widget->align)
{
case TXT_HORIZ_LEFT:
widget->w = col_width;
break;
case TXT_HORIZ_CENTER:
TXT_CalcWidgetSize(widget);
// Separators are always drawn left-aligned.
if (widget->widget_class != &txt_separator_class)
{
draw_x += (col_width - widget->w) / 2;
}
break;
case TXT_HORIZ_RIGHT:
TXT_CalcWidgetSize(widget);
if (widget->widget_class != &txt_separator_class)
{
draw_x += col_width - widget->w;
}
break;
}
// Set the position for this widget
widget->x = draw_x;
widget->y = draw_y;
// Recursively lay out any widgets contained in the widget
TXT_LayoutWidget(widget);
}
static void TXT_ScrollPaneLayout(TXT_UNCAST_ARG(scrollpane))
{
TXT_CAST_ARG(txt_scrollpane_t, scrollpane);
SanityCheckScrollbars(scrollpane);
// The child widget takes the same position as the scroll pane
// itself, but is offset by the scroll position.
if (scrollpane->child != NULL)
{
scrollpane->child->x = scrollpane->widget.x - scrollpane->x;
scrollpane->child->y = scrollpane->widget.y - scrollpane->y;
TXT_LayoutWidget(scrollpane->child);
}
}
void TXT_LayoutWindow(txt_window_t *window)
{
txt_widget_t *widgets = (txt_widget_t *) window;
unsigned int widgets_w;
unsigned int actionarea_w, actionarea_h;
// Calculate size of table
TXT_CalcWidgetSize(window);
// Widgets area: add one character of padding on each side
widgets_w = widgets->w + 2;
// Calculate the size of the action area
// Make window wide enough to action area
CalcActionAreaSize(window, &actionarea_w, &actionarea_h);
if (actionarea_w > widgets_w)
widgets_w = actionarea_w;
// Set the window size based on widgets_w
window->window_w = widgets_w + 2;
window->window_h = widgets->h + 1;
// If the window has a title, add an extra two lines
if (window->title != NULL)
{
window->window_h += 2;
}
// If the window has an action area, add extra lines
if (actionarea_h > 0)
{
window->window_h += actionarea_h + 1;
}
// Use the x,y position as the centerpoint and find the location to
// draw the window.
CalcWindowPosition(window);
// Set the table size and position
widgets->w = widgets_w - 2;
// widgets->h (already set)
widgets->x = window->window_x + 2;
widgets->y = window->window_y;
if (window->title != NULL)
{
widgets->y += 2;
}
// Layout the table and action area
LayoutActionArea(window);
TXT_LayoutWidget(widgets);
}
