static void CheckValidSelection(txt_table_t *table)
{
int rows;
int new_x, new_y;
rows = TableRows(table);
for (new_y = table->selected_y; new_y < rows; ++new_y)
{
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable column.
ChangeSelection(table, new_x, new_y);
break;
}
}
}
int TXT_PageTable(TXT_UNCAST_ARG(table), int pagex, int pagey)
{
TXT_CAST_ARG(txt_table_t, table);
unsigned int *column_widths;
unsigned int *row_heights;
int rows;
int changed = 0;
rows = TableRows(table);
row_heights = malloc(sizeof(int) * rows);
column_widths = malloc(sizeof(int) * table->columns);
CalcRowColSizes(table, row_heights, column_widths);
if (pagex)
{
// @todo Jump selection to the left or right as needed
}
if (pagey)
{
int new_x, new_y;
int distance = 0;
int dir;
// What direction are we moving?
if (pagey > 0)
{
dir = 1;
}
else
{
dir = -1;
}
// Move the cursor until the desired distance is reached.
new_y = table->selected_y;
while (new_y >= 0 && new_y < rows)
{
// We are about to travel a distance equal to the height of the row
// we are about to leave.
distance += row_heights[new_y];
// *Now* increment the loop.
new_y += dir;
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable widget in this column!
// Select it anyway in case we don't find something better.
table->selected_x = new_x;
table->selected_y = new_y;
changed = 1;
// ...but is it far enough away?
if (distance >= abs(pagey))
{
break;
}
}
}
}
free(row_heights);
free(column_widths);
return changed;
}
static int TXT_TableKeyPress(TXT_UNCAST_ARG(table), int key)
{
TXT_CAST_ARG(txt_table_t, table);
int selected;
int rows;
rows = TableRows(table);
// Send to the currently selected widget first
selected = table->selected_y * table->columns + table->selected_x;
if (selected >= 0 && selected < table->num_widgets)
{
if (table->widgets[selected] != NULL
&& table->widgets[selected]->selectable
&& TXT_WidgetKeyPress(table->widgets[selected], key))
{
return 1;
}
}
if (key == KEY_DOWNARROW)
{
int new_x, new_y;
// Move cursor down to the next selectable widget
for (new_y = table->selected_y + 1; new_y < rows; ++new_y)
{
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable widget in this column!
table->selected_x = new_x;
table->selected_y = new_y;
return 1;
}
}
}
if (key == KEY_UPARROW)
{
int new_x, new_y;
// Move cursor up to the next selectable widget
for (new_y = table->selected_y - 1; new_y >= 0; --new_y)
{
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable widget in this column!
table->selected_x = new_x;
table->selected_y = new_y;
return 1;
}
}
}
if (key == KEY_LEFTARROW)
{
int new_x;
// Move cursor left
for (new_x = table->selected_x - 1; new_x >= 0; --new_x)
{
if (SelectableWidget(table, new_x, table->selected_y))
{
// Found a selectable widget!
table->selected_x = new_x;
return 1;
}
}
}
if (key == KEY_RIGHTARROW)
{
int new_x;
// Move cursor left
for (new_x = table->selected_x + 1; new_x < table->columns; ++new_x)
{
if (SelectableWidget(table, new_x, table->selected_y))
{
// Found a selectable widget!
table->selected_x = new_x;
return 1;
}
}
}
return 0;
}
static int TXT_TableKeyPress(TXT_UNCAST_ARG(table), int key)
{
TXT_CAST_ARG(txt_table_t, table);
int selected;
int rows;
rows = TableRows(table);
// Send to the currently selected widget first
selected = table->selected_y * table->columns + table->selected_x;
if (selected >= 0 && selected < table->num_widgets)
{
if (IsActualWidget(table->widgets[selected])
&& TXT_SelectableWidget(table->widgets[selected])
&& TXT_WidgetKeyPress(table->widgets[selected], key))
{
return 1;
}
}
if (key == KEY_TAB)
{
int dir;
int i;
dir = TXT_GetModifierState(TXT_MOD_SHIFT) ? -1 : 1;
// Cycle through all widgets until we find one that can be selected.
for (i = table->selected_y * table->columns + table->selected_x + dir;
i >= 0 && i < table->num_widgets;
i += dir)
{
if (IsActualWidget(table->widgets[i])
&& TXT_SelectableWidget(table->widgets[i]))
{
ChangeSelection(table, i % table->columns, i / table->columns);
return 1;
}
}
return 0;
}
if (key == KEY_DOWNARROW)
{
int new_x, new_y;
// Move cursor down to the next selectable widget
for (new_y = table->selected_y + 1; new_y < rows; ++new_y)
{
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable widget in this column!
ChangeSelection(table, new_x, new_y);
return 1;
}
}
}
if (key == KEY_UPARROW)
{
int new_x, new_y;
// Move cursor up to the next selectable widget
for (new_y = table->selected_y - 1; new_y >= 0; --new_y)
{
new_x = FindSelectableColumn(table, new_y, table->selected_x);
if (new_x >= 0)
{
// Found a selectable widget in this column!
ChangeSelection(table, new_x, new_y);
return 1;
}
}
}
if (key == KEY_LEFTARROW)
{
int new_x;
// Move cursor left
for (new_x = table->selected_x - 1; new_x >= 0; --new_x)
{
if (SelectableCell(table, new_x, table->selected_y))
{
// Found a selectable widget!
ChangeSelection(table, new_x, table->selected_y);
return 1;
}
}
}
if (key == KEY_RIGHTARROW)
{
int new_x;
// Move cursor left
for (new_x = table->selected_x + 1; new_x < table->columns; ++new_x)
{
if (SelectableCell(table, new_x, table->selected_y))
{
// Found a selectable widget!
ChangeSelection(table, new_x, table->selected_y);
return 1;
}
}
}
return 0;
}
