Don't try to solve if container is smaller than its margins

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

diff --git a/source/panel.cpp b/source/panel.cpp
index 4d7e1a9df3d0aa814aa225c9dc47038d58fc3f68..7876120b2ce2e7cea30cecb52fd42aeef2b11185 100644 (file)
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -1,10 +1,3 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007-2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <algorithm>
 #include <msp/core/refptr.h>
 #include "button.h"
@@ -13,6 +6,7 @@ Distributed under the LGPL
 #include "hslider.h"
 #include "indicator.h"
 #include "label.h"
+#include "layout.h"
 #include "list.h"
 #include "panel.h"
 #include "part.h"
@@ -25,14 +19,29 @@ using namespace std;
 namespace Msp {
 namespace GLtk {
 
-Panel::Panel(const Resources &r):
-       Widget(r),
-       Container(r),
+Panel::Panel():
+       layout(0),
        pointer_focus(0),
        pointer_grabbed(false),
        input_focus(0)
+{ }
+
+Panel::~Panel()
+{
+       delete layout;
+       layout = 0;
+}
+
+void Panel::set_layout(Layout *l)
+{
+       l->set_container(*this);
+       delete layout;
+       layout = l;
+}
+
+Panel::Child *Panel::create_child(Widget *wdg)
 {
-       update_style();
+       return new Child(*this, wdg);
 }
 
 void Panel::raise(Widget &wdg)
@@ -44,30 +53,40 @@ void Panel::raise(Widget &wdg)
                        return;
                }
 
-       throw InvalidState("That Widget is not in this Panel");
+       throw hierarchy_error("widget not in panel");
 }
 
 Widget *Panel::get_final_input_focus() const
 {
-       if(Panel *panel=dynamic_cast<Panel *>(input_focus))
+       if(Panel *panel = dynamic_cast<Panel *>(input_focus))
        {
-               Widget *focus=panel->get_final_input_focus();
+               Widget *focus = panel->get_final_input_focus();
                if(focus)
                        return focus;
        }
        return input_focus;
 }
 
+void Panel::render_special(const Part &part) const
+{
+       if(part.get_name()=="children")
+       {
+               for(list<Container::Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
+                       if((*i)->widget->is_visible())
+                               (*i)->widget->render();
+       }
+}
+
 void Panel::button_press(int x, int y, unsigned btn)
 {
        if(pointer_grabbed)
        {
-               const Geometry &cgeom=pointer_focus->get_geometry();
+               const Geometry &cgeom = pointer_focus->get_geometry();
                pointer_focus->button_press(x-cgeom.x, y-cgeom.y, btn);
        }
        else
        {
-               if(Widget *wdg=get_child_at(x, y))
+               if(Widget *wdg = get_child_at(x, y))
                {
                        set_pointer_focus(wdg);
                        if(wdg->is_focusable())
@@ -81,7 +100,7 @@ void Panel::button_release(int x, int y, unsigned btn)
 {
        if(pointer_grabbed)
        {
-               const Geometry &cgeom=pointer_focus->get_geometry();
+               const Geometry &cgeom = pointer_focus->get_geometry();
                pointer_focus->button_release(x-cgeom.x, y-cgeom.y, btn);
        }
        else
@@ -92,7 +111,7 @@ void Panel::pointer_motion(int x, int y)
 {
        if(pointer_grabbed)
        {
-               const Geometry &cgeom=pointer_focus->get_geometry();
+               const Geometry &cgeom = pointer_focus->get_geometry();
                pointer_focus->pointer_motion(x-cgeom.x, y-cgeom.y);
        }
        else
@@ -108,10 +127,10 @@ void Panel::pointer_leave()
        set_pointer_focus(0);
 }
 
-void Panel::key_press(unsigned key, unsigned mod, wchar_t ch)
+void Panel::key_press(unsigned key, unsigned mod)
 {
        if(input_focus)
-               input_focus->key_press(key, mod, ch);
+               input_focus->key_press(key, mod);
 }
 
 void Panel::key_release(unsigned key, unsigned mod)
@@ -120,24 +139,34 @@ void Panel::key_release(unsigned key, unsigned mod)
                input_focus->key_release(key, mod);
 }
 
+void Panel::character(wchar_t ch)
+{
+       if(input_focus)
+               input_focus->character(ch);
+}
+
 void Panel::focus_out()
 {
        set_input_focus(0);
+       Widget::focus_out();
 }
 
-void Panel::render_special(const Part &part) const
+void Panel::on_geometry_change()
 {
-       if(part.get_name()=="children")
-       {
-               for(list<Container::Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
-                       if((*i)->widget->is_visible())
-                               (*i)->widget->render();
-       }
+       if(layout)
+               layout->update();
 }
 
-Panel::Child *Panel::create_child(Widget *wdg)
+void Panel::on_child_added(Widget &wdg)
 {
-       return new Child(*this, wdg);
+       if(layout)
+               layout->add_widget(wdg);
+}
+
+void Panel::on_child_removed(Widget &wdg)
+{
+       if(layout)
+               layout->remove_widget(wdg);
 }
 
 void Panel::set_pointer_focus(Widget *wdg)
@@ -147,7 +176,7 @@ void Panel::set_pointer_focus(Widget *wdg)
                if(pointer_focus)
                        pointer_focus->pointer_leave();
 
-               pointer_focus=wdg;
+               pointer_focus = wdg;
 
                if(pointer_focus)
                        pointer_focus->pointer_enter();
@@ -161,7 +190,7 @@ void Panel::set_input_focus(Widget *wdg)
                if(input_focus)
                        input_focus->focus_out();
 
-               input_focus=wdg;
+               input_focus = wdg;
 
                if(input_focus)
                {
@@ -193,18 +222,18 @@ Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
 template<typename T>
 void Panel::Loader::child(const string &n)
 {
-       RefPtr<T> chl=new T(pnl.res);
+       RefPtr<T> chl = new T();
        load_sub(*chl);
        pnl.add(*chl.get());
-       wdg_map[n]=chl.release();
+       wdg_map[n] = chl.release();
 }
 
 void Panel::Loader::panel(const string &n)
 {
-       RefPtr<Panel> p=new Panel(pnl.res);
+       RefPtr<Panel> p = new Panel();
        load_sub(*p, wdg_map);
        pnl.add(*p.get());
-       wdg_map[n]=p.release();
+       wdg_map[n] = p.release();
 }
 
 
@@ -226,7 +255,7 @@ void Panel::Child::visibility_changed(bool v)
 {
        if(!v)
        {
-               Panel &panel=static_cast<Panel &>(container);
+               Panel &panel = static_cast<Panel &>(container);
                if(widget==panel.pointer_focus)
                        panel.set_pointer_focus(0);
                if(widget==panel.input_focus)
@@ -234,9 +263,16 @@ void Panel::Child::visibility_changed(bool v)
        }
 }
 
+void Panel::Child::autosize_changed()
+{
+       Panel &panel = static_cast<Panel &>(container);
+       if(panel.layout)
+               panel.layout->update();
+}
+
 void Panel::Child::request_focus()
 {
-       Panel &panel=static_cast<Panel &>(container);
+       Panel &panel = static_cast<Panel &>(container);
        panel.set_input_focus(widget);
        if(panel.parent && panel.visible)
                panel.set_focus();
@@ -244,23 +280,23 @@ void Panel::Child::request_focus()
 
 void Panel::Child::grab_pointer()
 {
-       Panel &panel=static_cast<Panel &>(container);
+       Panel &panel = static_cast<Panel &>(container);
        if(!panel.pointer_grabbed)
        {
                panel.set_pointer_focus(widget);
-               panel.pointer_grabbed=true;
+               panel.pointer_grabbed = true;
                panel.signal_grab_pointer.emit();
        }
 }
 
 void Panel::Child::ungrab_pointer()
 {
-       Panel &panel=static_cast<Panel &>(container);
+       Panel &panel = static_cast<Panel &>(container);
        if(panel.pointer_grabbed && panel.pointer_focus==widget)
        {
                // XXX Should set to the widget under pointer
                panel.set_pointer_focus(0);
-               panel.pointer_grabbed=false;
+               panel.pointer_grabbed = false;
                panel.signal_ungrab_pointer.emit();
        }
 }