m_content_changed(false), m_enabled_wrap_around(false), m_top(0), m_selected(0), m_itemheight(25),
m_items_per_page(0), m_selection_enabled(1), m_scrollbar(NULL)
{
+ memset(&m_style, 0, sizeof(m_style));
// setContent(new eListboxStringContent());
ePtr<eActionMap> ptr;
void eListbox::setContent(iListboxContent *content)
{
- int oldsel = m_selected;
m_content = content;
if (content)
m_content->setListbox(this);
entryReset();
- if (oldsel == m_selected)
- /* emit */ selectionChanged();
}
bool eListbox::atBegin()
void eListbox::moveToEnd()
{
+ if (!m_content)
+ return;
/* move to last existing one ("end" is already invalid) */
m_content->cursorEnd(); m_content->cursorMove(-1);
/* current selection invisible? */
}
}
-void eListbox::moveSelection(int dir)
+void eListbox::moveSelection(long dir)
{
/* refuse to do anything without a valid list. */
if (!m_content)
break;
}
+ if (m_content->cursorValid() && !m_content->currentCursorSelectable())
+ {
+ /* ok, our cursor position is valid (i.e. in list), but not selectable. */
+
+ /* when moving up, continue until we found a valid position. */
+ if ((dir == moveUp) || (dir == pageDown))
+ {
+ while (m_content->cursorGet())
+ {
+ m_content->cursorMove(-1);
+ if (m_content->currentCursorSelectable())
+ {
+ break;
+ }
+ }
+ } else
+ {
+ /* else move down */
+ while (m_content->cursorValid())
+ {
+ m_content->cursorMove(+1);
+ if (m_content->currentCursorSelectable())
+ {
+ break;
+ }
+ }
+
+ if (!m_content->cursorValid())
+ m_content->cursorMove(-1);
+ }
+
+ if (!m_content->currentCursorSelectable())
+ m_content->cursorSet(oldsel);
+ }
+
/* note that we could be on an invalid cursor position, but we don't
care. this only happens on empty lists, and should have almost no
side effects. */
/* 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);
-
invalidate(inv);
}
}
if ((pages*m_items_per_page) < entries)
++pages;
int start=(m_top*100)/(pages*m_items_per_page);
- int vis=(m_items_per_page*100)/(pages*m_items_per_page);
+ int vis=(m_items_per_page*100+pages*m_items_per_page-1)/(pages*m_items_per_page);
if (vis < 3)
vis=3;
m_scrollbar->setStartEnd(start,start+vis);
}
}
+int eListbox::getEntryTop()
+{
+ return (m_selected - m_top) * m_itemheight;
+}
+
int eListbox::event(int event, void *data, void *data2)
{
switch (event)
if (!m_content)
return eWidget::event(event, data, data2);
- assert(m_content);
+ ASSERT(m_content);
getStyle(style);
m_content->cursorSave();
m_content->cursorMove(m_top - m_selected);
+ gRegion entryrect = eRect(0, 0, size().width(), m_itemheight);
+ const gRegion &paint_region = *(gRegion*)data;
+
for (int y = 0, i = 0; i <= m_items_per_page; y += m_itemheight, ++i)
{
- m_content->paint(painter, *style, ePoint(0, y), m_selected == m_content->cursorGet() && m_content->size() && m_selection_enabled);
+ gRegion entry_clip_rect = paint_region & entryrect;
+
+ if (!entry_clip_rect.empty())
+ m_content->paint(painter, *style, ePoint(0, y), m_selected == m_content->cursorGet() && m_content->size() && m_selection_enabled);
+
+ /* (we could clip with entry_clip_rect, but
+ this shouldn't change the behavior of any
+ well behaving content, so it would just
+ degrade performance without any gain.) */
+
m_content->cursorMove(+1);
+ entryrect.moveBy(ePoint(0, m_itemheight));
}
+ // clear/repaint empty/unused space between scrollbar and listboxentrys
if (m_scrollbar && m_scrollbar->isVisible())
{
+ style->setStyle(painter, eWindowStyle::styleListboxNormal);
painter.clip(eRect(m_scrollbar->position() - ePoint(5,0), eSize(5,m_scrollbar->size().height())));
painter.clear();
painter.clippop();
return 0;
}
+
case evtChangedSize:
recalcSize();
return eWidget::event(event, data, data2);
case evtAction:
if (isVisible())
{
- moveSelection((int)data2);
+ moveSelection((long)data2);
return 1;
}
return 0;
{
m_content_changed=true;
m_prev_scrollbar_page=-1;
- m_content->setSize(eSize(size().width(), m_itemheight));
+ if (m_content)
+ m_content->setSize(eSize(size().width(), m_itemheight));
m_items_per_page = size().height() / m_itemheight;
if (m_items_per_page < 0) /* TODO: whyever - our size could be invalid, or itemheigh could be wrongly specified. */
void eListbox::entryAdded(int index)
{
- /* manage our local pointers. when the entry was added before the current position, we have to advance. */
+ if (m_content && (m_content->size() % m_items_per_page) == 1)
+ m_content_changed=true;
+ /* 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)
void eListbox::entryRemoved(int index)
{
- if (index == m_selected)
+ if (m_content && !(m_content->size() % m_items_per_page))
+ m_content_changed=true;
+
+ if (index == m_selected && m_content)
m_selected = m_content->cursorGet();
- moveSelection(justCheck);
+ if (m_content && m_content->cursorGet() >= m_content->size())
+ moveSelection(moveUp);
+ else
+ moveSelection(justCheck);
if ((m_top <= index) && (index < (m_top + m_items_per_page)))
{
void eListbox::entryReset(bool selectionHome)
{
- eDebug("entry reset");
m_content_changed = true;
m_prev_scrollbar_page = -1;
+ int oldsel;
if (selectionHome)
{
else
m_selected = 0;
m_content->cursorSet(m_selected);
- selectionChanged();
}
+ oldsel = m_selected;
moveSelection(justCheck);
+ /* if oldsel != m_selected, selectionChanged was already
+ emitted in moveSelection. we want it in any case, so otherwise,
+ emit it now. */
+ if (oldsel == m_selected)
+ /* emit */ selectionChanged();
invalidate();
}
+
+void eListbox::setBackgroundColor(gRGB &col)
+{
+ m_style.m_background_color = col;
+ m_style.m_background_color_set = 1;
+}
+
+void eListbox::setBackgroundColorSelected(gRGB &col)
+{
+ m_style.m_background_color_selected = col;
+ m_style.m_background_color_selected_set = 1;
+}
+
+void eListbox::setForegroundColor(gRGB &col)
+{
+ m_style.m_foreground_color = col;
+ m_style.m_foreground_color_set = 1;
+}
+
+void eListbox::setForegroundColorSelected(gRGB &col)
+{
+ m_style.m_foreground_color_selected = col;
+ m_style.m_foreground_color_selected_set = 1;
+}
+
+void eListbox::setBackgroundPicture(ePtr<gPixmap> &pm)
+{
+ m_style.m_background = pm;
+}
+
+void eListbox::setSelectionPicture(ePtr<gPixmap> &pm)
+{
+ m_style.m_selection = pm;
+}
+
+void eListbox::invalidate(const gRegion ®ion)
+{
+ gRegion tmp(region);
+ if (m_content)
+ m_content->updateClip(tmp);
+ eWidget::invalidate(tmp);
+}
+
+struct eListboxStyle *eListbox::getLocalStyle(void)
+{
+ /* transparency is set directly in the widget */
+ m_style.m_transparent_background = isTransparent();
+ return &m_style;
+}
git.cweiske.de / enigma2.git / blobdiff