Adjust event handling to match changes in mspgui

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

diff --git a/source/widget.cpp b/source/widget.cpp
index 1442151262121406319c9bdf737f5f2f54a34d56..1cb42e5cae15598cdd82ea25809913e59a8359e7 100644 (file)
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -1,10 +1,3 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007-2011  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <msp/gl/immediate.h>
 #include <msp/gl/matrix.h>
 #include <msp/gl/transform.h>
@@ -30,7 +23,11 @@ Widget::Widget():
 Widget::~Widget()
 {
        if(parent)
-               parent->remove(*this);
+       {
+               Container *p = parent;
+               parent = 0;
+               p->remove(*this);
+       }
 }
 
 void Widget::set_position(int x, int y)
@@ -47,6 +44,19 @@ void Widget::set_size(unsigned w, unsigned h)
        on_geometry_change();
 }
 
+void Widget::autosize()
+{
+       geom.w = 0;
+       geom.h = 0;
+       const Style::PartSeq &parts = style->get_parts();
+       for(Style::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+               if(i->get_name().empty())
+               {
+                       geom.w = max(geom.w, i->get_geometry().w);
+                       geom.h = max(geom.h, i->get_geometry().h);
+               }
+}
+
 void Widget::set_geometry(const Geometry &g)
 {
        geom = g;
@@ -56,7 +66,9 @@ void Widget::set_geometry(const Geometry &g)
 void Widget::set_parent(Container *p)
 {
        if(parent && p)
-               throw InvalidState("Widget is already in a Container");
+               throw hierarchy_error("widget already parented");
+       else if(p==parent)
+               return;
        parent = p;
 
        on_reparent();
@@ -89,6 +101,7 @@ void Widget::update_style()
        }
 
        on_style_change();
+       signal_autosize_changed.emit();
 }
 
 void Widget::set_tooltip(const string &t)
@@ -114,9 +127,9 @@ void Widget::set_focusable(bool f)
 void Widget::set_focus()
 {
        if(!parent)
-               throw InvalidState("No parent");
+               throw hierarchy_error("no parent");
        if(!visible)
-               throw InvalidState("Can't set focus on invisible widget");
+               throw logic_error("!visible");
 
        signal_request_focus.emit();
 }
@@ -124,7 +137,7 @@ void Widget::set_focus()
 void Widget::render() const
 {
        if(!style)
-               throw InvalidState(format("Attempt to render a widget with null style (class=\"%s\", style_name=\"%s\")", get_class(), style_name));
+               throw logic_error(format("Attempt to render a widget with null style (class=\"%s\", style_name=\"%s\")", get_class(), style_name));
 
        GL::push_matrix();
        GL::translate(geom.x, geom.y, 0);