+#include <msp/core/raii.h>
+#include <msp/debug/demangle.h>
#include <msp/gl/matrix.h>
#include <msp/gl/meshbuilder.h>
#include "graphic.h"
namespace Msp {
namespace GLtk {
+incompatible_data::incompatible_data(const type_info &ti):
+ logic_error("expected "+Debug::demangle(ti.name()))
+{ }
+
+
List::List():
data(new BasicListData<string>),
own_data(true)
void List::init()
{
+ item_factory = 0;
sel_index = -1;
first = 0;
max_scroll = 0;
+ view_size = 5;
+ ignore_slider_change = false;
observer = new DataObserver(*this);
List::~List()
{
+ delete item_factory;
delete observer;
if(own_data)
delete data;
}
-void List::autosize()
-{
- autosize_rows(5);
-}
-
-void List::autosize_rows(unsigned n)
+void List::autosize_special(const Part &part, Geometry &ageom) const
{
- if(!style)
- return;
-
- Widget::autosize();
-
- if(const Part *items_part = style->get_part("items"))
+ if(part.get_name()=="items")
{
- const Sides &margin = items_part->get_margin();
+ const Sides &margin = part.get_margin();
unsigned max_w = 0;
unsigned total_h = 0;
- for(unsigned i=0; (i<n && i<items.size()); ++i)
+ for(unsigned i=0; i<items.size(); ++i)
{
- items[i]->autosize();
- const Geometry &igeom = items[i]->get_geometry();
+ Geometry igeom;
+ items[i]->autosize(igeom);
max_w = max(max_w, igeom.w);
- total_h += igeom.h;
+ if(view_size==0 || i<view_size)
+ total_h += igeom.h;
}
- if(!items.empty() && items.size()<n)
- total_h = total_h*n/items.size();
+ if(!items.empty() && items.size()<view_size)
+ total_h = total_h*view_size/items.size();
- geom.w = max(geom.w, max_w+margin.left+margin.right);
- geom.h = max(geom.h, total_h+margin.top+margin.bottom);
+ ageom.w = max(ageom.w, max_w+margin.left+margin.right);
+ ageom.h = max(ageom.h, total_h+margin.top+margin.bottom);
}
-
- check_view_range();
- rebuild();
-}
-
-void List::autosize_all()
-{
- autosize_rows(data->size());
+ else if(part.get_name()=="slider")
+ autosize_child(slider, part, ageom);
}
void List::set_data(ListData &d)
{
+ if(item_factory)
+ item_factory->set_data(d);
+
delete observer;
if(own_data)
delete data;
own_data = false;
observer = new DataObserver(*this);
+ for(vector<Item *>::iterator i=items.begin(); i!=items.end(); ++i)
+ delete *i;
+ items.clear();
+ unsigned n_items = data->size();
+ for(unsigned i=0; i<n_items; ++i)
+ {
+ Item *item = create_item(i);
+ items.push_back(item);
+ }
+
items_changed();
}
void List::items_changed()
{
- check_view_range();
signal_autosize_changed.emit();
- reposition_items();
+ rebuild();
}
List::Item *List::create_item(unsigned index)
{
- return new BasicItem(data->get_string(index));
+ Item *item = 0;
+ if(item_factory)
+ item = item_factory->create_item(index);
+ else
+ item = new BasicItem(data->get_string(index));
+ if(static_cast<int>(index)==sel_index)
+ item->set_active(true);
+ add(*item);
+ item->autosize();
+ item->signal_autosize_changed.connect(sigc::bind(sigc::mem_fun(this, &List::item_autosize_changed), item));
+ return item;
+}
+
+void List::set_view_size(unsigned s)
+{
+ view_size = s;
+ signal_autosize_changed.emit();
+}
+
+void List::set_view_all()
+{
+ set_view_size(0);
}
void List::set_selected_index(int i)
{
- if(i>static_cast<int>(data->size()))
+ if(i>=static_cast<int>(data->size()))
throw out_of_range("List::set_selected_index");
+ if(i==sel_index)
+ return;
+
if(sel_index>=0)
items[sel_index]->set_active(false);
if(i<0)
}
}
-void List::render_special(const Part &part, GL::Renderer &renderer) const
-{
- if(part.get_name()=="items")
- {
- for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
- items[i]->render(renderer);
- }
- else if(part.get_name()=="slider")
- slider.render(renderer);
-}
-
-void List::button_press(int x, int y, unsigned btn)
+void List::rebuild_special(const Part &part)
{
- Container::button_press(x, y, btn);
- if(click_focus && btn==1)
- {
- for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
- if(click_focus==items[i])
- {
- set_selected_index(i);
- break;
- }
- }
-}
-
-void List::on_geometry_change()
-{
- reposition_slider();
- reposition_items();
-
- check_view_range();
-}
-
-void List::on_style_change()
-{
- if(!style)
- return;
-
- reposition_slider();
- reposition_items();
-
- check_view_range();
-}
-
-void List::reposition_slider()
-{
- if(!style)
- return;
-
- if(const Part *slider_part = style->get_part("slider"))
+ if(part.get_name()=="slider")
+ reposition_child(slider, part);
+ else if(part.get_name()=="items")
{
- Geometry sgeom = slider_part->get_geometry();
- slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
- slider.set_geometry(sgeom);
- }
-}
-
-void List::reposition_items()
-{
- if(!style)
- return;
+ SetFlag flag(ignore_slider_change);
+ check_view_range();
- if(const Part *items_part = style->get_part("items"))
- {
- const Sides &margin = items_part->get_margin();
- unsigned w = geom.w-margin.left-margin.right;
- unsigned y = geom.h-margin.top;
+ const Sides &margin = part.get_margin();
+ unsigned w = geom.w-min(geom.w, margin.left+margin.right);
+ unsigned y = geom.h-min(geom.h, margin.top);
for(unsigned i=0; i<items.size(); ++i)
{
if(i<first || !y)
}
}
}
+
+ Widget::rebuild_special(part);
+}
+
+void List::render_special(const Part &part, GL::Renderer &renderer) const
+{
+ if(part.get_name()=="items")
+ {
+ for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
+ items[i]->render(renderer);
+ }
+ else if(part.get_name()=="slider")
+ slider.render(renderer);
+}
+
+void List::button_press(int x, int y, unsigned btn)
+{
+ Container::button_press(x, y, btn);
+ if(click_focus && btn==1)
+ {
+ for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
+ if(click_focus==items[i])
+ {
+ set_selected_index(i);
+ break;
+ }
+ }
+}
+
+void List::item_autosize_changed(Item *item)
+{
+ item->autosize();
+ signal_autosize_changed.emit();
+ rebuild();
}
void List::check_view_range()
void List::slider_value_changed(double value)
{
- if(max_scroll>0)
+ if(max_scroll>0 && !ignore_slider_change)
{
first = max_scroll-static_cast<unsigned>(value);
- reposition_items();
+ rebuild();
}
}
list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
- list.data->signal_refresh_strings.connect(sigc::mem_fun(this, &DataObserver::refresh_strings));
+ list.data->signal_refresh_item.connect(sigc::mem_fun(this, &DataObserver::refresh_item));
}
void List::DataObserver::item_added(unsigned i)
++list.sel_index;
Item *item = list.create_item(i);
- list.add(*item);
list.items.insert(list.items.begin()+i, item);
list.items_changed();
}
list.items_changed();
}
-void List::DataObserver::refresh_strings()
+void List::DataObserver::refresh_item(unsigned i)
{
+ delete list.items[i];
+ // Avoid stale pointer while create_item is executing
+ list.items[i] = 0;
+ list.items[i] = list.create_item(i);
list.items_changed();
}
-void List::Item::autosize()
+void List::Item::autosize_special(const Part &part, Geometry &ageom) const
{
- Widget::autosize();
-
- if(const Part *part = style->get_part("children"))
+ if(part.get_name()=="children")
{
- const Sides &margin = part->get_margin();
+ const Sides &margin = part.get_margin();
for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
{
- const Geometry &cgeom = (*i)->widget->get_geometry();
- geom.w = max(geom.w, cgeom.x+cgeom.w+margin.right);
- geom.h = max(geom.h, cgeom.y+cgeom.h+margin.top);
+ Geometry cgeom;
+ (*i)->widget->autosize(cgeom);
+ ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
+ ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
}
}
}
}
+void List::MultiColumnItem::check_widths(vector<unsigned> &widths) const
+{
+ if(widths.size()<children.size())
+ widths.resize(children.size(), 0);
+
+ unsigned n = 0;
+ for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i, ++n)
+ {
+ Geometry cgeom;
+ (*i)->widget->autosize(cgeom);
+ // TODO invent a better way to specify spacings
+ widths[n] = max(widths[n], cgeom.w+8);
+ }
+}
+
+void List::MultiColumnItem::set_widths(const vector<unsigned> &widths)
+{
+ if(!style)
+ return;
+
+ const Part *part = style->get_part("children");
+ if(!part)
+ return;
+
+ const Sides &margin = part->get_margin();
+ int x = margin.left;
+ unsigned n = 0;
+ for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i, ++n)
+ {
+ (*i)->widget->set_position(x, margin.bottom);
+ x += widths[n];
+ }
+}
+
+void List::MultiColumnItem::on_style_change()
+{
+ if(!style)
+ return;
+
+ for(std::list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
+ (*i)->widget->autosize();
+
+ vector<unsigned> widths;
+ List *list = static_cast<List *>(parent);
+ for(vector<Item *>::const_iterator i=list->items.begin(); i!=list->items.end(); ++i)
+ if(*i!=this)
+ if(MultiColumnItem *mci = dynamic_cast<MultiColumnItem *>(*i))
+ mci->check_widths(widths);
+
+ vector<unsigned> self_widths(widths);
+ check_widths(self_widths);
+ bool update_all = false;
+ for(unsigned i=0; (!update_all && i<widths.size() && i<self_widths.size()); ++i)
+ update_all = self_widths[i]>widths[i];
+
+ if(update_all)
+ {
+ for(vector<Item *>::const_iterator i=list->items.begin(); i!=list->items.end(); ++i)
+ if(MultiColumnItem *mci = dynamic_cast<MultiColumnItem *>(*i))
+ mci->set_widths(self_widths);
+ }
+
+ set_widths(self_widths);
+}
+
+
List::BasicItem::BasicItem(const string &text):
label(text)
{
DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
{
add("item", &Loader::item);
+ add("view_size", &List::view_size);
}
void List::Loader::item(const string &v)
projects / libs / gltk.git / blobdiff