Support loading Panels from datafiles

[libs/gltk.git] / source / panel.cpp

diff --git a/source/panel.cpp b/source/panel.cpp
index b029057de9f7799dc64d36d86ea919dc2925eb7c..efe857ec6860be568acc50b4e37134cd2f85ec44 100644 (file)
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -1,11 +1,18 @@
+#include <msp/core/refptr.h>
+#include "label.h"
 #include "panel.h"
 #include "part.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GLtk {
 
 Panel::Panel(const Resources &r):
-       Widget(r)
+       Widget(r),
+       pointer_focus(0),
+       pointer_grab(0),
+       input_focus(0)
 {
        update_style();
 }
@@ -16,6 +23,71 @@ Panel::~Panel()
                delete *i;
 }
 
+void Panel::button_press(int x, int y, unsigned btn)
+{
+       if(pointer_grab>0)
+               pointer_focus->button_press(x-geom.x, y-geom.y, btn);
+       else if(geom.is_inside(x, y))
+       {
+               if(Widget *wdg=get_child_at(x, y))
+               {
+                       wdg->button_press(x-geom.x, y-geom.y, btn);
+                       pointer_grab=btn;
+                       set_input_focus(wdg);
+               }
+       }
+}
+
+void Panel::button_release(int x, int y, unsigned btn)
+{
+       if(pointer_grab>0)
+       {
+               pointer_focus->button_release(x-geom.x, y-geom.y, btn);
+
+               if(btn==pointer_grab)
+               {
+                       pointer_grab=0;
+
+                       set_pointer_focus(get_child_at(x, y));
+               }
+       }
+       else if(geom.is_inside(x, y))
+       {
+               if(Widget *wdg=get_child_at(x, y))
+                       wdg->button_release(x-geom.x, y-geom.y, btn);
+       }
+}
+
+void Panel::pointer_motion(int x, int y)
+{
+       if(pointer_grab>0)
+               pointer_focus->pointer_motion(x-geom.x, y-geom.y);
+       else if(geom.is_inside(x, y))
+       {
+               Widget *wdg=get_child_at(x, y);
+               set_pointer_focus(wdg);
+               if(wdg)
+                       wdg->pointer_motion(x-geom.x, y-geom.y);
+       }
+}
+
+void Panel::key_press(unsigned key, unsigned mod, wchar_t ch)
+{
+       if(input_focus)
+               input_focus->key_press(key, mod, ch);
+}
+
+void Panel::key_release(unsigned key, unsigned mod)
+{
+       if(input_focus)
+               input_focus->key_release(key, mod);
+}
+
+void Panel::focus_out()
+{
+       set_input_focus(0);
+}
+
 void Panel::add(Widget &wdg)
 {
        children.push_back(&wdg);
@@ -26,22 +98,75 @@ void Panel::render_part(const Part &part) const
        if(part.get_name()=="children")
        {
                for(ChildSeq::const_iterator i=children.begin(); i!=children.end(); ++i)
-                       (*i)->render();
+                       if((*i)->is_visible())
+                               (*i)->render();
        }
        else
                Widget::render_part(part);
 }
 
-void Panel::on_button_press(int x, int y, unsigned btn)
+void Panel::set_pointer_focus(Widget *wdg)
 {
-       for(ChildSeq::iterator i=children.begin(); i!=children.end(); ++i)
-               (*i)->button_press(x-geom.x, y-geom.y, btn);
+       if(wdg!=pointer_focus && pointer_grab==0)
+       {
+               if(pointer_focus)
+                       pointer_focus->pointer_leave();
+
+               pointer_focus=wdg;
+
+               if(pointer_focus)
+                       pointer_focus->pointer_enter();
+       }
 }
 
-void Panel::on_button_release(int x, int y, unsigned btn)
+void Panel::set_input_focus(Widget *wdg)
 {
-       for(ChildSeq::iterator i=children.begin(); i!=children.end(); ++i)
-               (*i)->button_release(x-geom.x, y-geom.y, btn);
+       if(wdg!=input_focus)
+       {
+               if(input_focus)
+                       input_focus->focus_out();
+
+               input_focus=wdg;
+
+               if(input_focus)
+                       input_focus->focus_in();
+       }
+}
+
+Widget *Panel::get_child_at(int x, int y)
+{
+       for(ChildSeq::reverse_iterator i=children.rbegin(); i!=children.rend(); ++i)
+               if((*i)->is_visible() && (*i)->get_geometry().is_inside(x-geom.x, y-geom.y))
+                       return *i;
+
+       return 0;
+}
+
+
+Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
+       Widget::Loader(p),
+       pnl(p),
+       wdg_map(m)
+{
+       add("label", &Loader::child<Label>);
+       add("panel", &Loader::panel);
+}
+
+template<typename T>
+void Panel::Loader::child(const string &n)
+{
+       RefPtr<T> chl=new T(pnl.res);
+       load_sub(*chl);
+       pnl.add(*chl.get());
+       wdg_map[n]=chl.release();
+}
+
+void Panel::Loader::panel(const string &n)
+{
+       RefPtr<Panel> p=new Panel(pnl.res);
+       load_sub(*p, wdg_map);
+       pnl.add(*p.get());
+       wdg_map[n]=p.release();
 }
 
 } // namespace GLtk