- added iStaticServiceInformation

[vuplus_dvbapp] / lib / gui / elistbox.cpp

diff --git a/lib/gui/elistbox.cpp b/lib/gui/elistbox.cpp
index 5a9ee4d..f530019 100644 (file)
--- a/lib/gui/elistbox.cpp
+++ b/lib/gui/elistbox.cpp
@@ -1,3 +1,4 @@
+       /* written by: Felix Domke <tmbinc@elitedvb.net> */
 #include <lib/gui/elistbox.h>
 #include <lib/gui/elistboxcontent.h>
 
@@ -9,11 +10,7 @@ eListbox::eListbox(eWidget *parent): eWidget(parent)
 void eListbox::setContent(iListboxContent *content)
 {
        m_content = content;
-       invalidate();
-       if (m_content)
-               m_content->cursorHome();
-       m_top = 0;
-       m_selected = 0;
+       entryReset();
 }
 
 void eListbox::moveSelection(int dir)
@@ -46,6 +43,8 @@ void eListbox::moveSelection(int dir)
                if (m_top < 0)
                        m_top = 0;
                break;
+       case justCheck:
+               break;
        }
        
                /* note that we could be on an invalid cursor position, but we don't
@@ -54,6 +53,7 @@ void eListbox::moveSelection(int dir)
        
                /* now, look wether the current selection is out of screen */
        m_selected = m_content->cursorGet();
+       
        if (m_selected < m_top)
        {
                m_top -= m_items_per_page;
@@ -64,11 +64,12 @@ void eListbox::moveSelection(int dir)
                        /* m_top should be always valid here as it's selected */
                m_top += m_items_per_page;
        }
-       
+
        if (m_top != oldtop)
                invalidate();
-       else
+       else if (m_selected != oldsel)
        {
+               
                        /* redraw the old and newly selected */
                gRegion inv = eRect(0, m_itemheight * (m_selected-m_top), size().width(), m_itemheight);
                inv |= eRect(0, m_itemheight * (oldsel-m_top), size().width(), m_itemheight);
@@ -119,3 +120,57 @@ void eListbox::recalcSize()
        m_content->setSize(eSize(size().width(), m_itemheight));
        m_items_per_page = size().height() / m_itemheight;
 }
+
+void eListbox::entryAdded(int index)
+{
+               /* manage our local pointers. when the entry was added before the current position, we have to advance. */
+               
+               /* we need to check <= - when the new entry has the (old) index of the cursor, the cursor was just moved down. */
+       if (index <= m_selected)
+               ++m_selected;
+       if (index <= m_top)
+               ++m_top;
+               
+               /* we have to check wether our current cursor is gone out of the screen. */
+               /* moveSelection will check for this case */
+       moveSelection(justCheck);
+       
+               /* now, check if the new index is visible. */
+       if ((m_top <= index) && (index < (m_top + m_items_per_page)))
+       {
+                       /* todo, calc exact invalidation... */
+               invalidate();
+       }
+}
+
+void eListbox::entryRemoved(int index)
+{
+       if (index == m_selected)
+               m_selected = m_content->cursorGet();
+
+       moveSelection(justCheck);
+       
+       if ((m_top <= index) && (index < (m_top + m_items_per_page)))
+       {
+                       /* todo, calc exact invalidation... */
+               invalidate();
+       }
+}
+
+void eListbox::entryChanged(int index)
+{
+       if ((m_top <= index) && (index < (m_top + m_items_per_page)))
+       {
+               gRegion inv = eRect(0, m_itemheight * (index-m_top), size().width(), m_itemheight);
+               invalidate(inv);
+       }
+}
+
+void eListbox::entryReset()
+{
+       invalidate();
+       if (m_content)
+               m_content->cursorHome();
+       m_top = 0;
+       m_selected = 0;
+}