-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2009 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
#include "container.h"
using namespace std;
namespace Msp {
namespace GLtk {
-Container::Container(const Resources &r):
- Widget(r),
+hierarchy_error::hierarchy_error(const string &w):
+ logic_error(w)
+{ }
+
+
+Container::Container():
click_focus(0),
- click_button(0)
+ click_button(0),
+ pointer_focus(0),
+ pointer_grabbed(false),
+ input_focus(0)
{ }
Container::~Container()
void Container::add(Widget &wdg)
{
- set_parent(wdg, this);
+ wdg.set_parent(this);
children.push_back(create_child(&wdg));
+ on_child_added(wdg);
}
void Container::remove(Widget &wdg)
for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
if((*i)->widget==&wdg)
{
- set_parent(wdg, 0);
+ wdg.set_parent(0);
delete *i;
children.erase(i);
+ on_child_removed(wdg);
return;
}
- throw InvalidState("That Widget is not in this Container");
+ throw hierarchy_error("widget not in container");
+}
+
+Container::Child *Container::create_child(Widget *wdg)
+{
+ return new Child(*this, wdg);
}
list<Widget *> Container::get_children() const
Widget *Container::get_descendant_at(int x, int y)
{
- Widget *wdg=get_child_at(x, y);
- if(Container *cont=dynamic_cast<Container *>(wdg))
+ Widget *wdg = get_child_at(x, y);
+ if(Container *cont = dynamic_cast<Container *>(wdg))
{
- const Geometry &cgeom=wdg->get_geometry();
- Widget *wdg2=cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
+ const Geometry &cgeom = wdg->get_geometry();
+ Widget *wdg2 = cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
if(wdg2)
return wdg2;
}
return wdg;
}
-void Container::button_press(int x, int y, unsigned btn)
+void Container::raise(Widget &wdg)
{
- if(click_focus)
+ for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
+ if((*i)->widget==&wdg)
+ {
+ children.splice(children.end(), children, i);
+ return;
+ }
+
+ throw hierarchy_error("widget not in container");
+}
+
+void Container::set_pointer_focus(Widget *wdg)
+{
+ if(wdg!=pointer_focus)
{
- const Geometry &cgeom=click_focus->get_geometry();
- click_focus->button_press(x-cgeom.x, y-cgeom.y, btn);
+ if(pointer_focus)
+ pointer_focus->pointer_leave();
+
+ pointer_focus = wdg;
+
+ if(pointer_focus)
+ pointer_focus->pointer_enter();
}
- else
+}
+
+void Container::set_input_focus(Widget *wdg)
+{
+ if(wdg!=input_focus)
{
- if(Widget *wdg=get_child_at(x, y))
- {
- click_focus=wdg;
- click_button=btn;
+ if(input_focus)
+ input_focus->focus_out();
+
+ input_focus = wdg;
- const Geometry &cgeom=wdg->get_geometry();
- wdg->button_press(x-cgeom.x, y-cgeom.y, btn);
+ if(input_focus)
+ {
+ raise(*wdg);
+ input_focus->focus_in();
}
}
}
-void Container::button_release(int x, int y, unsigned btn)
+Widget *Container::get_final_input_focus() const
+{
+ if(Container *container = dynamic_cast<Container *>(input_focus))
+ if(Widget *focus = container->get_final_input_focus())
+ return focus;
+
+ return input_focus;
+}
+
+void Container::button_press(int x, int y, unsigned btn)
{
- if(click_focus)
+ if(Widget *child = get_pointer_target(x, y))
{
- Widget *wdg=click_focus;
+ if(!click_focus)
+ {
+ set_pointer_focus(child);
+ if(child->is_focusable())
+ set_input_focus(child);
- if(btn==click_button)
- click_focus=0;
+ click_focus = child;
+ click_button = btn;
+ }
- const Geometry &cgeom=wdg->get_geometry();
- wdg->button_release(x-cgeom.x, y-cgeom.y, btn);
+ const Geometry &cgeom = child->get_geometry();
+ child->button_press(x-cgeom.x, y-cgeom.y, btn);
}
- else
+}
+
+void Container::button_release(int x, int y, unsigned btn)
+{
+ if(Widget *child = get_pointer_target(x, y))
{
- if(Widget *wdg=get_child_at(x, y))
+ if(child==click_focus && btn==click_button)
{
- const Geometry &cgeom=wdg->get_geometry();
- wdg->button_release(x-cgeom.x, y-cgeom.y, btn);
+ click_focus = 0;
+ if(!pointer_focus)
+ set_pointer_focus(get_child_at(x, y));
}
+
+ const Geometry &cgeom = child->get_geometry();
+ child->button_release(x-cgeom.x, y-cgeom.y, btn);
}
}
void Container::pointer_motion(int x, int y)
{
- if(click_focus)
+ Widget *child = get_pointer_target(x, y);
+ if(!pointer_grabbed)
+ set_pointer_focus((!click_focus || child->get_geometry().is_inside(x, y)) ? child : 0);
+
+ if(child)
{
- const Geometry &cgeom=click_focus->get_geometry();
- click_focus->pointer_motion(x-cgeom.x, y-cgeom.y);
+ const Geometry &cgeom = child->get_geometry();
+ child->pointer_motion(x-cgeom.x, y-cgeom.y);
}
+}
+
+Widget *Container::get_pointer_target(int x, int y)
+{
+ if(pointer_grabbed)
+ return pointer_focus;
+ else if(click_focus)
+ return click_focus;
else
{
- Widget *wdg=get_child_at(x, y);
- if(wdg)
- {
- const Geometry &cgeom=wdg->get_geometry();
- wdg->pointer_motion(x-cgeom.x, y-cgeom.y);
- }
+ Widget *child = get_child_at(x, y);
+ if(child && child->is_enabled())
+ return child;
+ else
+ return 0;
}
}
void Container::pointer_leave()
{
Widget::pointer_leave();
- click_focus=0;
+ set_pointer_focus(0);
}
-Container::Child *Container::create_child(Widget *wdg)
+void Container::key_press(unsigned key, unsigned mod)
{
- return new Child(*this, wdg);
+ if(input_focus)
+ input_focus->key_press(key, mod);
+}
+
+void Container::key_release(unsigned key, unsigned mod)
+{
+ if(input_focus)
+ input_focus->key_release(key, mod);
+}
+
+void Container::character(wchar_t ch)
+{
+ if(input_focus)
+ input_focus->character(ch);
+}
+
+void Container::focus_out()
+{
+ set_input_focus(0);
+ Widget::focus_out();
+}
+
+void Container::on_reparent()
+{
+ for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
+ {
+ if(Container *c = dynamic_cast<Container *>((*i)->widget))
+ c->on_reparent();
+ (*i)->widget->update_style();
+ }
}
widget(w)
{
widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
+ widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
+ widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
+ widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
}
Container::Child::~Child()
{
- if(widget==container.click_focus)
- container.click_focus=0;
+ visibility_changed(false);
}
void Container::Child::visibility_changed(bool v)
{
- if(!v && widget==container.click_focus)
- container.click_focus=0;
+ if(!v)
+ {
+ if(widget==container.click_focus)
+ container.click_focus = 0;
+ if(widget==container.pointer_focus)
+ container.set_pointer_focus(0);
+ if(widget==container.input_focus)
+ container.set_input_focus(0);
+ }
+}
+
+void Container::Child::request_focus()
+{
+ container.set_input_focus(widget);
+ if(container.parent && container.visible)
+ container.set_focus();
+}
+
+void Container::Child::grab_pointer()
+{
+ if(!container.pointer_grabbed)
+ {
+ container.set_pointer_focus(widget);
+ container.pointer_grabbed = true;
+ container.signal_grab_pointer.emit();
+ }
+}
+
+void Container::Child::ungrab_pointer()
+{
+ if(container.pointer_grabbed && container.pointer_focus==widget)
+ {
+ // XXX Should set to the widget under pointer
+ container.set_pointer_focus(0);
+ container.pointer_grabbed = false;
+ container.signal_ungrab_pointer.emit();
+ }
}
} // namespace GLtk
projects / libs / gltk.git / blobdiff