void TXT_AddWidget(TXT_UNCAST_ARG(table), TXT_UNCAST_ARG(widget))
{
TXT_CAST_ARG(txt_table_t, table);
TXT_CAST_ARG(txt_widget_t, widget);
if (table->num_widgets > 0)
{
txt_widget_t *last_widget;
last_widget = table->widgets[table->num_widgets - 1];
if (widget != NULL && last_widget != NULL
&& widget->widget_class == &txt_separator_class
&& last_widget->widget_class == &txt_separator_class)
{
// The previous widget added was a separator; replace
// it with this one.
//
// This way, if the first widget added to a window is
// a separator, it replaces the "default" separator that
// the window itself adds on creation.
table->widgets[table->num_widgets - 1] = widget;
TXT_DestroyWidget(last_widget);
return;
}
}
table->widgets = realloc(table->widgets,
sizeof(txt_widget_t *) * (table->num_widgets + 1));
table->widgets[table->num_widgets] = widget;
++table->num_widgets;
}
void TXT_SetTableColumns(TXT_UNCAST_ARG(table), int new_columns)
{
TXT_CAST_ARG(txt_table_t, table);
txt_widget_t **new_widgets;
txt_widget_t *widget;
int new_num_widgets;
int i, j, x;
// We need as many full rows as are in the current list, plus the
// remainder from the last row.
new_num_widgets = (table->num_widgets / table->columns) * new_columns
+ (table->num_widgets % table->columns);
new_widgets = calloc(new_num_widgets, sizeof(txt_widget_t *));
// Reset and add one by one from the old table.
new_num_widgets = 0;
for (i = 0; i < table->num_widgets; ++i)
{
widget = table->widgets[i];
x = i % table->columns;
if (x < new_columns)
{
new_widgets[new_num_widgets] = widget;
++new_num_widgets;
}
else if (IsActualWidget(widget))
{
TXT_DestroyWidget(widget);
}
// When we reach the last column of a row, we must pad it out with
// extra widgets to reach the next row.
if (x == table->columns - 1)
{
for (j = table->columns; j < new_columns; ++j)
{
// First row? We need to add struts that are used to apply
// the column widths.
if (i < table->columns)
{
widget = &TXT_NewStrut(0, 0)->widget;
}
else
{
widget = &txt_table_overflow_right;
}
new_widgets[new_num_widgets] = widget;
++new_num_widgets;
}
}
}
free(table->widgets);
table->widgets = new_widgets;
table->num_widgets = new_num_widgets;
table->columns = new_columns;
}
static void TXT_ScrollPaneDestructor(TXT_UNCAST_ARG(scrollpane))
{
TXT_CAST_ARG(txt_scrollpane_t, scrollpane);
if (scrollpane->child != NULL)
{
TXT_DestroyWidget(scrollpane->child);
}
}
void TXT_SetWindowAction(txt_window_t *window,
txt_horiz_align_t position,
txt_window_action_t *action)
{
if (window->actions[position] != NULL)
{
TXT_DestroyWidget(window->actions[position]);
}
window->actions[position] = action;
}
void TXT_CloseWindow(txt_window_t *window)
{
int i;
TXT_EmitSignal(window, "closed");
TXT_RemoveDesktopWindow(window);
free(window->title);
// Destroy all actions
for (i=0; i<3; ++i)
{
if (window->actions[i] != NULL)
{
TXT_DestroyWidget(window->actions[i]);
}
}
// Destroy table and window
TXT_DestroyWidget(window);
}
void TXT_SetWindowAction(txt_window_t *window,
txt_horiz_align_t position,
txt_window_action_t *action)
{
if (window->actions[position] != NULL)
{
TXT_DestroyWidget(window->actions[position]);
}
window->actions[position] = action;
// Maintain parent pointer.
if (action != NULL)
{
action->widget.parent = &window->table.widget;
}
}
void TXT_ClearTable(TXT_UNCAST_ARG(table))
{
TXT_CAST_ARG(txt_table_t, table);
int i;
// Free all widgets
// Skip over the first (num_columns) widgets in the array, as these
// are the column struts used to control column width
for (i=table->columns; i<table->num_widgets; ++i)
{
if (table->widgets[i] != NULL)
{
TXT_DestroyWidget(table->widgets[i]);
}
}
// Shrink the table to just the column strut widgets
table->num_widgets = table->columns;
}
static void TXT_FileSelectDestructor(TXT_UNCAST_ARG(fileselect))
{
TXT_CAST_ARG(txt_fileselect_t, fileselect);
TXT_DestroyWidget(fileselect->inputbox);
}
void TXT_AddWidget(TXT_UNCAST_ARG(table), TXT_UNCAST_ARG(widget))
{
TXT_CAST_ARG(txt_table_t, table);
TXT_CAST_ARG(txt_widget_t, widget);
int is_separator;
int i;
// Convenience alias for NULL:
if (widget == &txt_table_empty)
{
widget = NULL;
}
else if (widget == &txt_table_eol)
{
FillRowToEnd(table);
return;
}
// We have special handling for the separator widget:
is_separator = IsActualWidget(widget)
&& widget->widget_class == &txt_separator_class;
// If we add two separators consecutively, the new separator replaces the
// first. This allows us to override the "implicit" separator that is
// added at the top of a window when it is created.
if (is_separator)
{
for (i = table->num_widgets - 1; i >= 0; --i)
{
txt_widget_t *last_widget;
last_widget = table->widgets[i];
if (IsActualWidget(last_widget)
&& widget->widget_class == &txt_separator_class
&& last_widget->widget_class == &txt_separator_class)
{
table->widgets[i] = widget;
TXT_DestroyWidget(last_widget);
return;
}
else if (last_widget != &txt_table_overflow_right)
{
break;
}
}
}
// Separators begin on a new line.
if (is_separator)
{
FillRowToEnd(table);
}
table->widgets = realloc(table->widgets,
sizeof(txt_widget_t *) * (table->num_widgets + 1));
table->widgets[table->num_widgets] = widget;
++table->num_widgets;
// Maintain parent pointer.
if (IsActualWidget(widget))
{
widget->parent = &table->widget;
}
// Separators always take up the entire line.
if (is_separator)
{
FillRowToEnd(table);
}
}
