#include <msp/debug/demangle.h>
#include <msp/gl/matrix.h>
#include <msp/gl/meshbuilder.h>
+#include <msp/input/keys.h>
+#include <msp/strings/format.h>
#include "graphic.h"
#include "list.h"
#include "part.h"
#include "style.h"
#include "text.h"
-#include "vslider.h"
using namespace std;
input_type = INPUT_NAVIGATION;
item_factory = 0;
+ view_mode = LIST;
sel_index = -1;
focus_index = -1;
- first = 0;
+ first_row = 0;
max_scroll = 0;
- view_size = 5;
+ view_rows = 5;
+ view_columns = 5;
+ items_part = 0;
ignore_slider_change = false;
dragging = false;
drag_start_x = 0;
{
const Sides &margin = part.get_margin();
- unsigned max_w = 0;
- unsigned total_h = 0;
+ unsigned items_w = 0;
+ unsigned items_h = 0;
for(unsigned i=0; i<items.size(); ++i)
{
Geometry igeom;
items[i]->autosize(igeom);
- max_w = max(max_w, igeom.w);
- if(view_size==0 || i<view_size)
- total_h += igeom.h;
+ items_w = max(items_w, igeom.w);
+ items_h = max(items_h, igeom.h);
}
- if(!items.empty() && items.size()<view_size)
- total_h = total_h*view_size/items.size();
+ if(view_mode==GRID)
+ {
+ unsigned r = view_rows;
+ unsigned c = view_columns;
+ if(r==0 && c==0)
+ r = sqrt(items.size());
+ if(r==0)
+ r = (items.size()+c-1)/c;
+ if(c==0)
+ c = (items.size()+r-1)/r;
+ items_w *= c;
+ items_h *= r;
+ }
+ else
+ items_h *= (view_rows==0 ? items.size() : view_rows);
- ageom.w = max(ageom.w, max_w+margin.left+margin.right);
- ageom.h = max(ageom.h, total_h+margin.top+margin.bottom);
+ ageom.w = max(ageom.w, items_w+margin.left+margin.right);
+ ageom.h = max(ageom.h, items_h+margin.top+margin.bottom);
}
else if(part.get_name()=="slider")
autosize_child(slider, part, ageom);
void List::items_changed()
{
signal_autosize_changed.emit();
- rebuild();
+ mark_rebuild();
}
List::Item *List::create_item(unsigned index)
void List::set_view_size(unsigned s)
{
- view_size = s;
+ set_view_size(s, s);
+}
+
+void List::set_view_size(unsigned r, unsigned c)
+{
+ view_rows = r;
+ view_columns = c;
signal_autosize_changed.emit();
}
void List::set_selected_item(Widget *item)
{
- for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
+ for(unsigned i=rows[first_row].first; (i<items.size() && items[i]->is_visible()); ++i)
if(item==items[i])
return set_selected_index(i);
}
else if(part.get_name()=="items")
{
SetFlag flag(ignore_slider_change);
+ reposition_items(true);
+ unsigned old_first_row = first_row;
+ unsigned old_max_scroll = max_scroll;
check_view_range();
-
- 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)
- items[i]->set_visible(false);
- else
- {
- Geometry igeom = items[i]->get_geometry();
- if(igeom.h+margin.bottom<=y)
- {
- items[i]->set_visible(true);
- y -= igeom.h;
- igeom.x = margin.left;
- igeom.y = y;
- igeom.w = w;
- items[i]->set_geometry(igeom);
- }
- else
- {
- items[i]->set_visible(false);
- y = 0;
- }
- }
- }
+ if(first_row!=old_first_row || max_scroll!=old_max_scroll)
+ reposition_items(false);
}
Widget::rebuild_special(part);
{
if(part.get_name()=="items")
{
- for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
+ for(unsigned i=rows[first_row].first; (i<items.size() && items[i]->is_visible()); ++i)
items[i]->render(renderer);
}
else if(part.get_name()=="slider")
slider.render(renderer);
}
+bool List::key_press(unsigned key, unsigned mod)
+{
+ if(key==Input::KEY_UP && mod==MOD_CTRL)
+ move_focus(NAV_UP, false);
+ else if(key==Input::KEY_DOWN && mod==MOD_CTRL)
+ move_focus(NAV_DOWN, false);
+ else
+ return false;
+
+ return true;
+}
+
void List::button_press(int x, int y, unsigned btn)
{
if(btn==4 || btn==5)
unsigned change = 3;
if(btn==4)
{
- change = min(first, change);
- slider.set_value(max_scroll-(first-change));
+ change = min(first_row, change);
+ slider.set_value(max_scroll-(first_row-change));
}
else if(btn==5)
{
- change = min(max_scroll-first, change);
- slider.set_value(max_scroll-(first+change));
+ change = min(max_scroll-first_row, change);
+ slider.set_value(max_scroll-(first_row+change));
}
}
else
if(finger==0 && !items.empty() && dragging)
{
int dy = y-drag_start_y;
- if(dy>0 && first<max_scroll)
+ if(dy>0 && first_row<max_scroll)
{
- int item_h = items[first]->get_geometry().h;
- if(dy>item_h)
+ int row_h = rows[first_row].height;
+ if(dy>row_h)
{
- drag_start_y += item_h;
- slider.set_value(max_scroll-(first+1));
+ drag_start_y += row_h;
+ slider.set_value(max_scroll-(first_row+1));
}
}
- else if(dy<0 && first>0)
+ else if(dy<0 && first_row>0)
{
- int item_h = items[first-1]->get_geometry().h;
- if(-dy>item_h)
+ int row_h = rows[first_row-1].height;
+ if(-dy>row_h)
{
- drag_start_y -= item_h;
- slider.set_value(max_scroll-(first-1));
+ drag_start_y -= row_h;
+ slider.set_value(max_scroll-(first_row-1));
}
}
}
if(sel_index>=0 && items[sel_index]->is_visible())
set_focus_index(sel_index);
else if(!items.empty())
- set_focus_index(first);
+ set_focus_index(rows[first_row].first);
}
}
bool List::navigate(Navigation nav)
{
- if(nav==NAV_UP && !items.empty())
+ if((nav==NAV_UP || nav==NAV_DOWN || ((nav==NAV_LEFT || nav==NAV_RIGHT) && view_mode==GRID)) && !items.empty())
+ move_focus(nav, true);
+ else if(nav==NAV_ACTIVATE)
+ set_selected_index(focus_index);
+ else
+ return false;
+
+ return true;
+}
+
+void List::on_style_change()
+{
+ items_part = (style ? style->get_part("items") : 0);
+}
+
+void List::move_focus(Navigation nav, bool select)
+{
+ if(nav==NAV_UP && view_mode==GRID)
+ {
+ unsigned row = item_index_to_row(focus_index);
+ if(row>0)
+ set_focus_index(rows[row-1].first+focus_index-rows[row].first);
+ else
+ set_focus_index(0);
+ }
+ else if(nav==NAV_DOWN && view_mode==GRID)
+ {
+ unsigned row = item_index_to_row(focus_index);
+ if(row+1<rows.size())
+ set_focus_index(rows[row+1].first+focus_index-rows[row].first);
+ else
+ set_focus_index(items.size()-1);
+ }
+ else if(nav==NAV_UP || (nav==NAV_LEFT && view_mode==GRID))
{
if(focus_index>0)
set_focus_index(focus_index-1);
}
- else if(nav==NAV_DOWN && !items.empty())
+ else if(nav==NAV_DOWN || (nav==NAV_RIGHT && view_mode==GRID))
{
if(static_cast<unsigned>(focus_index+1)<items.size())
set_focus_index(focus_index+1);
}
- else if(nav==NAV_ACTIVATE)
- set_selected_index(focus_index);
- else
- return false;
- return true;
+ if(select)
+ set_selected_index(focus_index);
}
void List::set_focus_index(int i)
{
item->autosize();
signal_autosize_changed.emit();
- rebuild();
+ mark_rebuild();
}
-unsigned List::last_to_first(unsigned last) const
+void List::reposition_items(bool record_rows)
{
- if(!style)
- return last;
+ if(!items_part)
+ return;
- unsigned view_h = geom.h;
- if(const Part *items_part = style->get_part("items"))
+ if(record_rows)
{
- const Sides &margin = items_part->get_margin();
- view_h -= margin.top+margin.bottom;
+ rows.clear();
+ rows.push_back(0);
}
+ const Sides &margin = items_part->get_margin();
+ unsigned view_w = geom.w-min(geom.w, margin.left+margin.right);
+ unsigned x = 0;
+ unsigned y = 0;
+ unsigned row_h = 0;
+ for(unsigned i=0; i<items.size(); ++i)
+ {
+ const Geometry &igeom = items[i]->get_geometry();
+
+ if(view_mode!=GRID || (x>0 && x+igeom.w>view_w))
+ {
+ x = 0;
+ if(y)
+ y -= row_h;
+ if(record_rows && i>0)
+ {
+ rows.back().height = row_h;
+ rows.push_back(i);
+ }
+ row_h = 0;
+ }
+
+ if(first_row<rows.size() && i==rows[first_row].first)
+ y = geom.h-min(geom.h, margin.top);
+
+ if(!y)
+ items[i]->set_visible(false);
+ else if(igeom.h+margin.bottom<=y)
+ {
+ items[i]->set_visible(true);
+ unsigned iw = (view_mode==GRID ? igeom.w : view_w);
+ items[i]->set_geometry(Geometry(margin.left+x, y-igeom.h, iw, igeom.h));
+ }
+ else
+ {
+ for(unsigned j=rows.back().first; j<=i; ++j)
+ items[j]->set_visible(false);
+ y = 0;
+ }
+
+ x += igeom.w;
+ row_h = max(row_h, igeom.h);
+ }
+
+ if(record_rows)
+ rows.back().height = row_h;
+}
+
+unsigned List::last_to_first_row(unsigned last) const
+{
+ if(!items_part)
+ return last;
+
+ const Sides &margin = items_part->get_margin();
+ unsigned view_h = geom.h-min(geom.h, margin.top+margin.bottom);
+
unsigned items_h = 0;
- for(unsigned i=last; i<items.size(); --i)
+ for(unsigned i=last; i<rows.size(); --i)
{
- items_h += items[i]->get_geometry().h;
+ items_h += rows[i].height;
if(items_h>view_h)
return min(i+1, last);
}
return 0;
}
+unsigned List::item_index_to_row(unsigned index) const
+{
+ for(unsigned i=0; i+1<rows.size(); ++i)
+ if(rows[i+1].first>index)
+ return i;
+ return rows.size()-1;
+}
+
void List::check_view_range()
{
if(!style)
if(items.empty())
max_scroll = 0;
else
- max_scroll = last_to_first(items.size()-1);
+ max_scroll = last_to_first_row(rows.size()-1);
- if(first>max_scroll)
- first = max_scroll;
+ if(first_row>max_scroll)
+ first_row = max_scroll;
slider.set_range(0, max_scroll);
- slider.set_value(max_scroll-first);
+ slider.set_value(max_scroll-first_row);
}
void List::scroll_to_focus()
if(focus_index<0 || items[focus_index]->is_visible())
return;
- if(static_cast<unsigned>(focus_index)<first)
- slider.set_value(max_scroll-focus_index);
+ unsigned focus_row = item_index_to_row(static_cast<unsigned>(focus_index));
+ if(focus_row<first_row)
+ slider.set_value(max_scroll-focus_row);
else
- slider.set_value(max_scroll-last_to_first(focus_index));
+ slider.set_value(max_scroll-last_to_first_row(focus_row));
}
void List::slider_value_changed(double value)
{
if(max_scroll>0 && !ignore_slider_change)
{
- first = max_scroll-static_cast<unsigned>(value);
- rebuild();
+ first_row = max_scroll-static_cast<unsigned>(value);
+ mark_rebuild();
}
}
}
+List::Item::Item()
+{
+ input_type = INPUT_NAVIGATION;
+}
+
void List::Item::autosize_special(const Part &part, Geometry &ageom) const
{
if(part.get_name()=="children")
}
+void List::SimpleItem::on_style_change()
+{
+ if(!style || children.empty())
+ return;
+
+ Widget *child = children.front()->widget;
+ child->autosize();
+ if(const Part *part = style->get_part("children"))
+ {
+ const Sides &margin = part->get_margin();
+ child->set_position(margin.left, margin.bottom);
+ }
+}
+
+
void List::MultiColumnItem::check_widths(vector<unsigned> &widths) const
{
if(widths.size()<children.size())
add(label);
}
-void List::BasicItem::on_style_change()
-{
- if(!style)
- return;
-
- label.autosize();
- if(const Part *part = style->get_part("children"))
- {
- const Sides &margin = part->get_margin();
- label.set_position(margin.left, margin.bottom);
- }
-}
-
List::Loader::Loader(List &l):
DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
{
add("item", &Loader::item);
- add("view_size", &List::view_size);
+ add("view_mode", &List::view_mode);
+ add("view_size", &List::view_rows);
+ add("view_size", &List::view_rows, &List::view_columns);
}
void List::Loader::item(const string &v)
dynamic_cast<BasicListData<string> &>(*obj.data).append(v);
}
+
+void operator>>(const LexicalConverter &conv, List::ViewMode &vm)
+{
+ const string &str = conv.get();
+ if(str=="LIST")
+ vm = List::LIST;
+ else if(str=="GRID")
+ vm = List::GRID;
+ else
+ throw lexical_error(format("conversion of '%s' to List::ViewMode", str));
+}
+
} // namespace GLtk
} // namespace Msp
projects / libs / gltk.git / blobdiff