adding timers works now
[enigma2.git] / lib / gui / ewidget.cpp
index 3ebac35..8cb7d4a 100644 (file)
@@ -3,10 +3,13 @@
 
 extern void dumpRegion(const gRegion &region);
 
-eWidget::eWidget(eWidget *parent): m_parent(parent ? parent->child() : 0)
+eWidget::eWidget(eWidget *parent): m_animation(this), m_parent(parent ? parent->child() : 0)
 {
        m_vis = 0;
        m_desktop = 0;
+       m_have_background_color = 0;
+       
+       m_client_offset = eSize(0, 0);
        
        if (m_parent)
                m_vis = wVisShow;
@@ -16,24 +19,26 @@ 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)
 {
+       pos = pos + m_client_offset;
+       
        if (m_position == pos)
                return;
-       
+
        m_position = pos;
        
-               /* we invalidate before and after the move to
-                  cause a correct redraw. The area which is
-                  included both before and after isn't redrawn
-                  twice because a invalidate doesn't immediately
-                  redraws the region. */
-       invalidate();
        event(evtChangedPosition);
-       recalcClipRegionsWhenVisible(); 
-       invalidate();
+       recalcClipRegionsWhenVisible();
+       
+               /* try native move if supported. */
+       if ((m_vis & wVisShow) && ((!m_desktop) || m_desktop->movedWidget(this)))
+               invalidate();
 }
 
 void eWidget::resize(eSize size)
@@ -45,10 +50,14 @@ void eWidget::resize(eSize size)
                   fits into the other completely, and invalidate
                   only once. */
        eSize old_size = m_size;
-       event(evtWillChangeSize, &size);
+       eSize old_offset = m_client_offset;
+       m_client_offset = eSize(0, 0);
+       event(evtWillChangeSize, &size, &m_client_offset);
        if (old_size == m_size)
                return;
-
+       
+       move(position() - old_offset);
+       
        invalidate();
        event(evtChangedSize);
        recalcClipRegionsWhenVisible(); 
@@ -100,7 +109,7 @@ void eWidget::show()
                abspos += root->position();
        }
 
-       root->m_desktop->recalcClipRegions();
+       root->m_desktop->recalcClipRegions(root);
 
        gRegion abs = m_visible_with_childs;
        abs.moveBy(abspos);
@@ -109,7 +118,17 @@ void eWidget::show()
 
 void eWidget::hide()
 {
+               /* TODO: when hiding an upper level widget, widgets get hidden but keep the */
+               /* wVisShow flag (because when the widget is shown again, the widgets must */
+               /* become visible again. */
+       if (!(m_vis & wVisShow))
+               return;
        m_vis &= ~wVisShow;
+       
+               /* this is a workaround to the above problem. when we are in the delete phase, 
+                  don't hide childs. */
+       if (!(m_parent || m_desktop))
+               return;
 
                /* TODO: optimize here to only recalc what's required. possibly merge with show. */
        eWidget *root = this;
@@ -124,7 +143,7 @@ void eWidget::hide()
        gRegion abs = m_visible_with_childs;
        abs.moveBy(abspos);
 
-       root->m_desktop->recalcClipRegions();
+       root->m_desktop->recalcClipRegions(root);
        root->m_desktop->invalidate(abs);
 }
 
@@ -135,11 +154,34 @@ void eWidget::destruct()
        delete this;
 }
 
+void eWidget::setBackgroundColor(const gRGB &col)
+{
+       m_background_color = col;
+       m_have_background_color = 1;
+}
+
+void eWidget::clearBackgroundColor()
+{
+       m_have_background_color = 0;
+}
+
+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();
+       
        if (m_parent)
                m_parent->m_childs.remove(this);
 
+       m_parent = 0;
+
                /* destroy all childs */
        ePtrList<eWidget>::iterator i(m_childs.begin());
        while (i != m_childs.end())
@@ -185,7 +227,7 @@ void eWidget::recalcClipRegionsWhenVisible()
                        break;
                if (t->m_desktop)
                {
-                       t->m_desktop->recalcClipRegions();
+                       t->m_desktop->recalcClipRegions(t);
                        break;
                }
                t = t->m_parent;
@@ -203,9 +245,16 @@ int eWidget::event(int event, void *data, void *data2)
                
 //             eDebug("eWidget::evtPaint");
 //             dumpRegion(*(gRegion*)data);
-               ePtr<eWindowStyle> style;
-               if (!getStyle(style))
-                       style->paintBackground(painter, ePoint(0, 0), size());
+               if (!m_have_background_color)
+               {
+                       ePtr<eWindowStyle> style;
+                       if (!getStyle(style))
+                               style->paintBackground(painter, ePoint(0, 0), size());
+               } else
+               {
+                       painter.setBackgroundColor(m_background_color);
+                       painter.clear();
+               }
                break;
        }
        case evtKey:
@@ -218,9 +267,26 @@ 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:
+               m_focus_owner = 0;
+               break;
        default:
                return -1;
        }
        return 0;
 }
 
+void eWidget::setFocus(eWidget *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);
+}
+