]> git.tdb.fi Git - libs/gltk.git/blobdiff - source/container.cpp
Add a system for animating widgets
[libs/gltk.git] / source / container.cpp
index fade54edbb00e58eb87283bb42f460bf99052dfe..62e6e125429bb7a10ca10b33476bc5d36fbd1a92 100644 (file)
@@ -1,4 +1,5 @@
 #include "container.h"
+#include "part.h"
 
 using namespace std;
 
@@ -15,7 +16,8 @@ Container::Container():
        click_button(0),
        pointer_focus(0),
        pointer_grabbed(false),
-       input_focus(0)
+       input_focus(0),
+       touch_focus(0)
 { }
 
 Container::~Container()
@@ -28,6 +30,8 @@ void Container::add(Widget &wdg)
 {
        wdg.set_parent(this);
        children.push_back(create_child(&wdg));
+       if(wdg.get_animation_interval())
+               check_animation_interval();
        on_child_added(wdg);
 }
 
@@ -39,6 +43,8 @@ void Container::remove(Widget &wdg)
                        wdg.set_parent(0);
                        delete *i;
                        children.erase(i);
+                       if(wdg.get_animation_interval())
+                               check_animation_interval();
                        on_child_removed(wdg);
                        return;
                }
@@ -51,6 +57,36 @@ Container::Child *Container::create_child(Widget *wdg)
        return new Child(*this, wdg);
 }
 
+Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
+{
+       Geometry pgeom = part.get_geometry();
+       if(!pgeom.w || !pgeom.h)
+       {
+               Geometry cgeom;
+               child.autosize(cgeom);
+               if(!pgeom.w)
+                       pgeom.w = cgeom.w;
+               if(!pgeom.h)
+                       pgeom.h = cgeom.h;
+       }
+
+       part.get_alignment().apply(pgeom, geom, part.get_margin());
+       return pgeom;
+}
+
+void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
+{
+       Geometry cgeom = determine_child_geometry(child, part);
+       const Sides &margin = part.get_margin();
+       ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
+       ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
+}
+
+void Container::reposition_child(Widget &child, const Part &part) const
+{
+       child.set_geometry(determine_child_geometry(child, part));
+}
+
 list<Widget *> Container::get_children() const
 {
        list<Widget *> result;
@@ -59,16 +95,16 @@ list<Widget *> Container::get_children() const
        return result;
 }
 
-Widget *Container::get_child_at(int x, int y)
+Widget *Container::get_child_at(int x, int y) const
 {
-       for(list<Child *>::iterator i=children.end(); i!=children.begin();)
+       for(list<Child *>::const_iterator i=children.end(); i!=children.begin();)
                if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
                        return (*i)->widget;
 
        return 0;
 }
 
-Widget *Container::get_descendant_at(int x, int y)
+Widget *Container::get_descendant_at(int x, int y) const
 {
        Widget *wdg = get_child_at(x, y);
        if(Container *cont = dynamic_cast<Container *>(wdg))
@@ -133,117 +169,149 @@ Widget *Container::get_final_input_focus() const
        return input_focus;
 }
 
-void Container::button_press(int x, int y, unsigned btn)
+void Container::check_animation_interval()
 {
-       if(pointer_grabbed)
+       Time::TimeDelta shortest;
+       for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
        {
-               const Geometry &cgeom = pointer_focus->get_geometry();
-               pointer_focus->button_press(x-cgeom.x, y-cgeom.y, btn);
+               const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
+               if(child_iv && (!shortest || child_iv<shortest))
+                       shortest = child_iv;
        }
-       else
+
+       if(shortest!=anim_interval)
+               set_animation_interval(shortest);
+}
+
+void Container::button_press(int x, int y, unsigned btn)
+{
+       if(Widget *child = get_pointer_target(x, y, false))
        {
-               if(Widget *wdg = get_child_at(x, y))
+               if(!click_focus)
                {
-                       set_pointer_focus(wdg);
-                       if(wdg->is_focusable())
-                               set_input_focus(wdg);
-               }
-               if(click_focus)
-               {
-                       const Geometry &cgeom = click_focus->get_geometry();
-                       click_focus->button_press(x-cgeom.x, y-cgeom.y, btn);
-               }
-               else
-               {
-                       if(Widget *wdg = get_child_at(x, y))
-                       {
-                               click_focus = wdg;
-                               click_button = btn;
-
-                               const Geometry &cgeom = wdg->get_geometry();
-                               wdg->button_press(x-cgeom.x, y-cgeom.y, btn);
-                       }
+                       set_pointer_focus(child);
+                       if(child->is_focusable())
+                               set_input_focus(child);
+
+                       click_focus = child;
+                       click_button = btn;
                }
+
+               const Geometry &cgeom = child->get_geometry();
+               child->button_press(x-cgeom.x, y-cgeom.y, btn);
        }
 }
 
 void Container::button_release(int x, int y, unsigned btn)
 {
-       if(pointer_grabbed)
-       {
-               const Geometry &cgeom = pointer_focus->get_geometry();
-               pointer_focus->button_release(x-cgeom.x, y-cgeom.y, btn);
-       }
-       else if(click_focus)
+       if(Widget *child = get_pointer_target(x, y, false))
        {
-               Widget *wdg = click_focus;
-
-               if(btn==click_button)
-                       click_focus = 0;
-
-               const Geometry &cgeom = wdg->get_geometry();
-               wdg->button_release(x-cgeom.x, y-cgeom.y, btn);
-       }
-       else
-       {
-               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(pointer_grabbed)
+       Widget *child = get_pointer_target(x, y, false);
+       if(!pointer_grabbed)
+               set_pointer_focus((!click_focus || child->get_geometry().is_inside(x, y)) ? child : 0);
+
+       if(child)
        {
-               const Geometry &cgeom = pointer_focus->get_geometry();
-               pointer_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, bool touch) const
+{
+       if(pointer_grabbed)
+               return pointer_focus;
+       else if(!touch && click_focus)
+               return click_focus;
+       else if(touch && touch_focus)
+               return touch_focus;
        else
        {
-               set_pointer_focus(get_child_at(x, y));
-               if(click_focus)
-               {
-                       const Geometry &cgeom = click_focus->get_geometry();
-                       click_focus->pointer_motion(x-cgeom.x, y-cgeom.y);
-               }
+               Widget *child = get_child_at(x, y);
+               if(child && child->is_enabled())
+                       return child;
                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);
-                       }
-               }
+                       return 0;
        }
 }
 
 void Container::pointer_leave()
 {
        Widget::pointer_leave();
-       click_focus = 0;
        set_pointer_focus(0);
 }
 
-void Container::key_press(unsigned key, unsigned mod)
+void Container::touch_press(int x, int y, unsigned finger)
+{
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               // TODO track focus for each finger separately
+               if(!touch_focus)
+                       touch_focus = child;
+
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_press(x-cgeom.x, y-cgeom.y, finger);
+       }
+}
+
+void Container::touch_release(int x, int y, unsigned finger)
 {
-       if(input_focus)
-               input_focus->key_press(key, mod);
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               // TODO track focus for each finger separately
+               if(child==touch_focus)
+                       touch_focus = 0;
+
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_release(x-cgeom.x, y-cgeom.y, finger);
+       }
 }
 
-void Container::key_release(unsigned key, unsigned mod)
+void Container::touch_motion(int x, int y, unsigned finger)
 {
-       if(input_focus)
-               input_focus->key_release(key, mod);
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
+       }
 }
 
-void Container::character(wchar_t ch)
+bool Container::key_press(unsigned key, unsigned mod)
 {
-       if(input_focus)
-               input_focus->character(ch);
+       if(input_focus && input_focus->is_enabled())
+               return input_focus->key_press(key, mod);
+       else
+               return false;
+}
+
+bool Container::key_release(unsigned key, unsigned mod)
+{
+       if(input_focus && input_focus->is_enabled())
+               return input_focus->key_release(key, mod);
+       else
+               return false;
+}
+
+bool Container::character(wchar_t ch)
+{
+       if(input_focus && input_focus->is_enabled())
+               return input_focus->character(ch);
+       else
+               return false;
 }
 
 void Container::focus_out()
@@ -252,6 +320,32 @@ void Container::focus_out()
        Widget::focus_out();
 }
 
+bool Container::navigate(Navigation nav)
+{
+       if(input_focus && input_focus->is_enabled())
+               return input_focus->navigate(nav);
+       else
+               return false;
+}
+
+void Container::animate(const Time::TimeDelta &dt)
+{
+       for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
+       {
+               const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
+               if(!child_iv)
+                       continue;
+
+               (*i)->time_since_animate += dt;
+               if((*i)->time_since_animate>=child_iv)
+               {
+                       Time::TimeDelta child_dt = (*i)->time_since_animate;
+                       (*i)->time_since_animate = min((*i)->time_since_animate-child_iv, child_iv);
+                       (*i)->widget->animate(child_dt);
+               }
+       }
+}
+
 void Container::on_reparent()
 {
        for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
@@ -271,6 +365,7 @@ Container::Child::Child(Container &c, Widget *w):
        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));
+       widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
 }
 
 Container::Child::~Child()
@@ -319,5 +414,12 @@ void Container::Child::ungrab_pointer()
        }
 }
 
+void Container::Child::request_animation(const Time::TimeDelta &interval)
+{
+       if(!interval)
+               time_since_animate = Time::zero;
+       container.check_animation_interval();
+}
+
 } // namespace GLtk
 } // namespace Msp