void menu::set_items(const std::vector<std::string>& items, bool strip_spaces, bool keep_viewport)
{
const bool scrolled_to_max = (has_scrollbar() && get_position() == get_max_position());
items_.clear();
item_pos_.clear();
itemRects_.clear();
column_widths_.clear();
//undrawn_items_.clear();
max_items_ = -1; // Force recalculation of the max items.
item_height_ = -1; // Force recalculation of the item height.
if (!keep_viewport || selected_ >= items.size()) {
selected_ = 0;
}
fill_items(items, strip_spaces);
if(!keep_viewport) {
set_position(0);
} else if(scrolled_to_max) {
set_position(get_max_position());
}
update_scrollbar_grip_height();
if(!keep_viewport) {
adjust_viewport_to_selection();
}
set_dirty();
}
void scrollbar::set_full_size(unsigned h)
{
if (h == full_height_)
return;
bool at_bottom = get_position() == get_max_position() && get_max_position() > 0;
full_height_ = h;
if (at_bottom)
grip_position_ = get_max_position();
downarrow_.enable(grip_position_ < full_height_ - grip_height_);
set_shown_size(grip_height_);
set_position(grip_position_);
set_dirty(true);
}
void scrollbar::set_shown_size(unsigned h)
{
if (h > full_height_)
h = full_height_;
if (h == grip_height_)
return;
bool at_bottom = get_position() == get_max_position() && get_max_position() > 0;
grip_height_ = h;
if (at_bottom)
grip_position_ = get_max_position();
set_position(grip_position_);
set_dirty(true);
}
void textbox::append_text(const std::string& text, bool auto_scroll, const SDL_Color& color)
{
if(text_image_.get() == NULL) {
set_text(text, color);
return;
}
//disallow adding multi-line text to a single-line text box
if(wrap_ == false && std::find_if(text.begin(),text.end(),utils::isnewline) != text.end()) {
return;
}
const bool is_at_bottom = get_position() == get_max_position();
const wide_string& wtext = utils::string_to_wstring(text);
const surface new_text = add_text_line(wtext, color);
const surface new_surface = create_compatible_surface(text_image_,std::max<size_t>(text_image_->w,new_text->w),text_image_->h+new_text->h);
SDL_SetAlpha(new_text.get(),0,0);
SDL_SetAlpha(text_image_.get(),0,0);
SDL_BlitSurface(text_image_,NULL,new_surface,NULL);
SDL_Rect target = {0,text_image_->h,new_text->w,new_text->h};
SDL_BlitSurface(new_text,NULL,new_surface,&target);
text_image_.assign(new_surface);
text_.resize(text_.size() + wtext.size());
std::copy(wtext.begin(),wtext.end(),text_.end()-wtext.size());
set_dirty(true);
update_text_cache(false);
if(auto_scroll && is_at_bottom) scroll_to_bottom();
handle_text_changed(text_);
}
void textbox::scroll_to_bottom()
{
set_position(get_max_position());
}
bool scrollarea::handle_drag_event(const SDL_Event& event)
{
// KP: added content dragging for iPhone
static bool isDragging = false;
static int startDrag = 0;
static int startPos = 0;
static bool didDrag = false;
SDL_MouseButtonEvent const &e = event.button;
if (point_in_rect(e.x, e.y, inner_location()))
{
switch(event.type)
{
case SDL_MOUSEBUTTONUP:
{
isDragging = false;
break;
}
case SDL_MOUSEBUTTONDOWN:
{
isDragging = true;
startDrag = e.y;
startPos = get_position();
didDrag = false;
break;
}
case SDL_MOUSEMOTION:
{
if (isDragging)
{
int changeY = startDrag - e.y;
//SDL_Rect inner_loc = inner_location();
//float pixelsPerScroll = item_height_ / ((float) (item_height_ * nitems()) / inner_loc.h);
//int move = changeY / pixelsPerScroll;
int move = changeY;
if (move != 0)
{
int newPos = startPos + move;
if (newPos < 0)
newPos = 0;
if (newPos > get_max_position())
newPos = get_max_position();
set_position(newPos);
didDrag = true;
// fixes dragging off of control
startDrag = e.y;
startPos = newPos;
}
}
break;
}
default:
break;
}
}
else if (event.type == SDL_MOUSEBUTTONUP)
{
isDragging = false;
}
// do not select after dragging
if (didDrag == true && isDragging == false)
{
didDrag = false;
return true;
}
return false;
// END iPhone content dragging
}
