int ui_listbox_do( UI_DIALOG *dlg, UI_GADGET_LISTBOX * listbox, d_event *event )
{
int mitem, oldfakepos, kf;
int keypress = 0;
int rval = 0;
if (event->type == EVENT_WINDOW_DRAW)
{
ui_draw_listbox( dlg, listbox );
return 0;
}
if (event->type == EVENT_KEY_COMMAND)
keypress = event_key_get(event);
listbox->selected_item = -1;
listbox->moved = 0;
if (listbox->num_items < 1 ) {
listbox->current_item = -1;
listbox->first_item = 0;
listbox->old_current_item = listbox->current_item;
listbox->old_first_item = listbox->first_item;
//ui_draw_listbox( dlg, listbox );
if (dlg->keyboard_focus_gadget == (UI_GADGET *)listbox)
{
dlg->keyboard_focus_gadget = ui_gadget_get_next((UI_GADGET *)listbox);
}
return rval;
}
listbox->old_current_item = listbox->current_item;
listbox->old_first_item = listbox->first_item;
if (GADGET_PRESSED(listbox->scrollbar))
{
listbox->moved = 1;
listbox->first_item = listbox->scrollbar->position;
if (listbox->current_item<listbox->first_item)
listbox->current_item = listbox->first_item;
if (listbox->current_item>(listbox->first_item+listbox->num_items_displayed-1))
listbox->current_item = listbox->first_item + listbox->num_items_displayed-1;
}
if (B1_JUST_RELEASED)
listbox->dragging = 0;
if (B1_JUST_PRESSED && ui_mouse_on_gadget( (UI_GADGET *)listbox ))
{
listbox->dragging = 1;
rval = 1;
}
if ( dlg->keyboard_focus_gadget==(UI_GADGET *)listbox )
{
if (keypress==KEY_ENTER) {
listbox->selected_item = listbox->current_item;
rval = 1;
}
kf = 0;
switch(keypress)
{
case (KEY_UP):
listbox->current_item--;
kf = 1;
break;
case (KEY_DOWN):
listbox->current_item++;
kf = 1;
break;
case (KEY_HOME):
listbox->current_item=0;
kf = 1;
break;
case (KEY_END):
listbox->current_item=listbox->num_items-1;
kf = 1;
break;
case (KEY_PAGEUP):
listbox->current_item -= listbox->num_items_displayed;
kf = 1;
break;
case (KEY_PAGEDOWN):
listbox->current_item += listbox->num_items_displayed;
kf = 1;
break;
}
if (kf==1)
{
listbox->moved = 1;
rval = 1;
if (listbox->current_item<0)
listbox->current_item=0;
if (listbox->current_item>=listbox->num_items)
listbox->current_item = listbox->num_items-1;
if (listbox->current_item<listbox->first_item)
listbox->first_item = listbox->current_item;
if (listbox->current_item>=(listbox->first_item+listbox->num_items_displayed))
listbox->first_item = listbox->current_item-listbox->num_items_displayed+1;
if (listbox->num_items <= listbox->num_items_displayed )
listbox->first_item = 0;
else
{
oldfakepos = listbox->scrollbar->position;
listbox->scrollbar->position = listbox->first_item;
listbox->scrollbar->fake_position = listbox->scrollbar->position-listbox->scrollbar->start;
listbox->scrollbar->fake_position *= listbox->scrollbar->height-listbox->scrollbar->fake_size;
listbox->scrollbar->fake_position /= (listbox->scrollbar->stop-listbox->scrollbar->start);
if (listbox->scrollbar->fake_position<0)
{
listbox->scrollbar->fake_position = 0;
}
if (listbox->scrollbar->fake_position > (listbox->scrollbar->height-listbox->scrollbar->fake_size))
{
listbox->scrollbar->fake_position = (listbox->scrollbar->height-listbox->scrollbar->fake_size);
}
if (oldfakepos != listbox->scrollbar->position )
listbox->scrollbar->status = 1;
}
}
}
if (selected_gadget==(UI_GADGET *)listbox)
{
if (listbox->dragging)
{
int x, y, z;
mouse_get_pos(&x, &y, &z);
if (y < listbox->y1)
mitem = -1;
else
mitem = (y - listbox->y1)/listbox->textheight;
if ((mitem < 0) && (timer_query() > listbox->last_scrolled + 1))
{
listbox->current_item--;
listbox->last_scrolled = timer_query();
listbox->moved = 1;
}
if ((mitem >= listbox->num_items_displayed) &&
(timer_query() > listbox->last_scrolled + 1))
{
listbox->current_item++;
listbox->last_scrolled = timer_query();
listbox->moved = 1;
}
if ((mitem>=0) && (mitem<listbox->num_items_displayed))
{
listbox->current_item = mitem+listbox->first_item;
listbox->moved=1;
}
if (listbox->current_item <0 )
listbox->current_item = 0;
if (listbox->current_item >= listbox->num_items )
listbox->current_item = listbox->num_items-1;
if (listbox->current_item<listbox->first_item)
listbox->first_item = listbox->current_item;
if (listbox->current_item>=(listbox->first_item+listbox->num_items_displayed))
listbox->first_item = listbox->current_item-listbox->num_items_displayed+1;
if (listbox->num_items <= listbox->num_items_displayed )
listbox->first_item = 0;
else
{
oldfakepos = listbox->scrollbar->position;
listbox->scrollbar->position = listbox->first_item;
listbox->scrollbar->fake_position = listbox->scrollbar->position-listbox->scrollbar->start;
listbox->scrollbar->fake_position *= listbox->scrollbar->height-listbox->scrollbar->fake_size;
listbox->scrollbar->fake_position /= (listbox->scrollbar->stop-listbox->scrollbar->start);
if (listbox->scrollbar->fake_position<0)
{
listbox->scrollbar->fake_position = 0;
}
if (listbox->scrollbar->fake_position > (listbox->scrollbar->height-listbox->scrollbar->fake_size))
{
listbox->scrollbar->fake_position = (listbox->scrollbar->height-listbox->scrollbar->fake_size);
}
if (oldfakepos != listbox->scrollbar->position )
listbox->scrollbar->status = 1;
}
}
if (B1_DOUBLE_CLICKED )
{
listbox->selected_item = listbox->current_item;
rval = 1;
}
}
if (listbox->moved || (listbox->selected_item > 0))
{
ui_gadget_send_event(dlg, (listbox->selected_item > 0) ? EVENT_UI_LISTBOX_SELECTED : EVENT_UI_LISTBOX_MOVED, (UI_GADGET *)listbox);
rval = 1;
}
return rval;
}
void ui_listbox_do( UI_GADGET_LISTBOX * listbox, int keypress )
{
int OnMe, mitem, oldfakepos, kf;
listbox->selected_item = -1;
listbox->moved = 0;
if (listbox->num_items < 1 ) {
listbox->current_item = -1;
listbox->first_item = 0;
listbox->old_current_item = listbox->current_item;
listbox->old_first_item = listbox->first_item;
ui_draw_listbox( listbox );
if (CurWindow->keyboard_focus_gadget == (UI_GADGET *)listbox)
{
CurWindow->keyboard_focus_gadget = ui_gadget_get_next((UI_GADGET *)listbox);
}
return;
}
listbox->old_current_item = listbox->current_item;
listbox->old_first_item = listbox->first_item;
OnMe = ui_mouse_on_gadget( (UI_GADGET *)listbox );
if (listbox->scrollbar->moved )
{
listbox->moved = 1;
listbox->first_item = listbox->scrollbar->position;
if (listbox->current_item<listbox->first_item)
listbox->current_item = listbox->first_item;
if (listbox->current_item>(listbox->first_item+listbox->num_items_displayed-1))
listbox->current_item = listbox->first_item + listbox->num_items_displayed-1;
}
if (!B1_PRESSED )
listbox->dragging = 0;
if (B1_PRESSED && OnMe )
listbox->dragging = 1;
if ( CurWindow->keyboard_focus_gadget==(UI_GADGET *)listbox )
{
if (keypress==KEY_ENTER) {
listbox->selected_item = listbox->current_item;
}
kf = 0;
switch(keypress)
{
case (KEY_UP):
listbox->current_item--;
kf = 1;
break;
case (KEY_DOWN):
listbox->current_item++;
kf = 1;
break;
case (KEY_HOME):
listbox->current_item=0;
kf = 1;
break;
case (KEY_END):
listbox->current_item=listbox->num_items-1;
kf = 1;
break;
case (KEY_PAGEUP):
listbox->current_item -= listbox->num_items_displayed;
kf = 1;
break;
case (KEY_PAGEDOWN):
listbox->current_item += listbox->num_items_displayed;
kf = 1;
break;
}
if (kf==1)
{
listbox->moved = 1;
if (listbox->current_item<0)
listbox->current_item=0;
if (listbox->current_item>=listbox->num_items)
listbox->current_item = listbox->num_items-1;
if (listbox->current_item<listbox->first_item)
listbox->first_item = listbox->current_item;
if (listbox->current_item>=(listbox->first_item+listbox->num_items_displayed))
listbox->first_item = listbox->current_item-listbox->num_items_displayed+1;
if (listbox->num_items <= listbox->num_items_displayed )
listbox->first_item = 0;
else
{
oldfakepos = listbox->scrollbar->position;
listbox->scrollbar->position = listbox->first_item;
listbox->scrollbar->fake_position = listbox->scrollbar->position-listbox->scrollbar->start;
listbox->scrollbar->fake_position *= listbox->scrollbar->height-listbox->scrollbar->fake_size;
listbox->scrollbar->fake_position /= (listbox->scrollbar->stop-listbox->scrollbar->start);
if (listbox->scrollbar->fake_position<0)
{
listbox->scrollbar->fake_position = 0;
}
if (listbox->scrollbar->fake_position > (listbox->scrollbar->height-listbox->scrollbar->fake_size))
{
listbox->scrollbar->fake_position = (listbox->scrollbar->height-listbox->scrollbar->fake_size);
}
if (oldfakepos != listbox->scrollbar->position )
listbox->scrollbar->status = 1;
}
}
}
if (selected_gadget==(UI_GADGET *)listbox)
{
if (B1_PRESSED && listbox->dragging)
{
if (Mouse.y < listbox->y1)
mitem = -1;
else
mitem = (Mouse.y - listbox->y1)/listbox->textheight;
if ((mitem < 0) && (timer_get_fixed_seconds() > listbox->last_scrolled + 1))
{
listbox->current_item--;
listbox->last_scrolled = timer_get_fixed_seconds();
listbox->moved = 1;
}
if ((mitem >= listbox->num_items_displayed) &&
(timer_get_fixed_seconds() > listbox->last_scrolled + 1))
{
listbox->current_item++;
listbox->last_scrolled = timer_get_fixed_seconds();
listbox->moved = 1;
}
if ((mitem>=0) && (mitem<listbox->num_items_displayed))
{
listbox->current_item = mitem+listbox->first_item;
listbox->moved=1;
}
if (listbox->current_item <0 )
listbox->current_item = 0;
if (listbox->current_item >= listbox->num_items )
listbox->current_item = listbox->num_items-1;
if (listbox->current_item<listbox->first_item)
listbox->first_item = listbox->current_item;
if (listbox->current_item>=(listbox->first_item+listbox->num_items_displayed))
listbox->first_item = listbox->current_item-listbox->num_items_displayed+1;
if (listbox->num_items <= listbox->num_items_displayed )
listbox->first_item = 0;
else
{
oldfakepos = listbox->scrollbar->position;
listbox->scrollbar->position = listbox->first_item;
listbox->scrollbar->fake_position = listbox->scrollbar->position-listbox->scrollbar->start;
listbox->scrollbar->fake_position *= listbox->scrollbar->height-listbox->scrollbar->fake_size;
listbox->scrollbar->fake_position /= (listbox->scrollbar->stop-listbox->scrollbar->start);
if (listbox->scrollbar->fake_position<0)
{
listbox->scrollbar->fake_position = 0;
}
if (listbox->scrollbar->fake_position > (listbox->scrollbar->height-listbox->scrollbar->fake_size))
{
listbox->scrollbar->fake_position = (listbox->scrollbar->height-listbox->scrollbar->fake_size);
}
if (oldfakepos != listbox->scrollbar->position )
listbox->scrollbar->status = 1;
}
}
if (B1_DOUBLE_CLICKED )
{
listbox->selected_item = listbox->current_item;
}
}
ui_draw_listbox( listbox );
}
