From: Felix Domke <tmbinc@elitedvb.net>
Date: Thu, 19 May 2005 22:53:21 +0000 (+0000)
Subject:  - add focus stuff
X-Git-Url: http://code.vuplus.com/gitweb/?p=vuplus_dvbapp;a=commitdiff_plain;h=e3a70a61207238b3c6ac464752a61f5965d95f14

 - add focus stuff
---

diff --git a/lib/gui/ewidget.cpp b/lib/gui/ewidget.cpp
index 3ba248f..2241577 100644
--- a/lib/gui/ewidget.cpp
+++ b/lib/gui/ewidget.cpp
@@ -17,6 +17,9 @@ eWidget::eWidget(eWidget *parent): m_parent(parent ? parent->child() : 0)
 		m_parent->m_childs.push_back(this);
 		m_parent->getStyle(m_style);
 	}
+
+	m_current_focus = 0;
+	m_focus_owner = 0;
 }
 
 void eWidget::move(ePoint pos)
@@ -155,6 +158,14 @@ void eWidget::setBackgroundColor(const gRGB &col)
 	m_have_background_color = 1;
 }
 
+void eWidget::mayKillFocus()
+{
+	setFocus(0);
+		/* when we have the focus, remove it first. */
+	if (m_focus_owner)
+		m_focus_owner->setFocus(0);
+}
+
 eWidget::~eWidget()
 {
 	hide();
@@ -249,9 +260,28 @@ int eWidget::event(int event, void *data, void *data2)
 		m_clip_region = gRegion(eRect(ePoint(0, 0),  m_size));
 		break;
 	}
+	case evtFocusGot:
+		m_focus_owner = (eWidget*)data;
+		break;
+	case evtFocusLost:
+		eDebug("unhandled focus lost in %p", this);
+		m_focus_owner = 0;
+		break;
 	default:
 		return -1;
 	}
 	return 0;
 }
 
+void eWidget::setFocus(eWidget *focus)
+{
+	eDebug("setFocus in %p to %p, was %p", this, focus, m_current_focus);
+	if (m_current_focus)
+		m_current_focus->event(evtFocusLost, this);
+	
+	m_current_focus = focus;
+
+	if (m_current_focus)
+		m_current_focus->event(evtFocusGot, this);
+}
+
diff --git a/lib/gui/ewidget.h b/lib/gui/ewidget.h
index cb39a00..9f3df2c 100644
--- a/lib/gui/ewidget.h
+++ b/lib/gui/ewidget.h
@@ -61,8 +61,11 @@ private:
 	
 	gRGB m_background_color;
 	int m_have_background_color;
+	
+	eWidget *m_current_focus, *m_focus_owner;
 protected:
 	virtual ~eWidget();
+	void mayKillFocus();
 public:
 
 		// all in local space!
@@ -82,9 +85,13 @@ public:
 		
 		evtAction,
 		
+		evtFocusGot,
+		evtFocusLost,
+		
 		evtUserWidget,
 	};
 	virtual int event(int event, void *data = 0, void *data2 = 0);
+	void setFocus(eWidget *focus);
 };
 
 extern eWidgetDesktop *getDesktop();
diff --git a/lib/python/Screens/Screen.py b/lib/python/Screens/Screen.py
index 1b42141..aed7dc6 100644
--- a/lib/python/Screens/Screen.py
+++ b/lib/python/Screens/Screen.py
@@ -34,3 +34,5 @@ class Screen(dict, HTMLSkin, GUISkin):
 	def close(self, retval=None):
 		self.session.close()
 
+	def setFocus(self, o):
+		self.instance.setFocus(o.instance)