#include <lib/actions/action.h>
eListbox::eListbox(eWidget *parent)
- :eWidget(parent), m_prev_scrollbar_page(-1), m_content_changed(false), m_scrollbar(NULL)
+ :eWidget(parent), m_scrollbar_mode(showNever), m_prev_scrollbar_page(-1)
+ ,m_content_changed(false), m_top(0), m_selected(0), m_itemheight(25)
+ ,m_items_per_page(0), m_selection_enabled(1), m_scrollbar(NULL)
{
- setContent(new eListboxStringContent());
-
- setScrollbarMode(showOnDemand); // Default show scrollbar on demand
+// setContent(new eListboxStringContent());
ePtr<eActionMap> ptr;
eActionMap::getInstance(ptr);
-
- m_itemheight = 25;
- m_selection_enabled = 1;
-
ptr->bindAction("ListboxActions", 0, 0, this);
}
eListbox::~eListbox()
{
+ if (m_scrollbar)
+ delete m_scrollbar;
+
ePtr<eActionMap> ptr;
eActionMap::getInstance(ptr);
ptr->unbindAction(this, 0);
void eListbox::setScrollbarMode(int mode)
{
m_scrollbar_mode = mode;
- if ( m_scrollbar_mode == showNever && m_scrollbar )
+ if ( m_scrollbar )
{
- delete m_scrollbar;
- m_scrollbar=0;
+ if ( m_scrollbar_mode == showNever )
+ {
+ delete m_scrollbar;
+ m_scrollbar=0;
+ }
}
- else if (!m_scrollbar)
+ else
{
m_scrollbar = new eSlider(this);
m_scrollbar->hide();
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();
}
void eListbox::moveSelection(int dir)
/* refuse to do anything without a valid list. */
if (!m_content)
return;
-
+ /* if our list does not have one entry, don't do anything. */
+ if (!m_items_per_page)
+ return;
/* we need the old top/sel to see what we have to redraw */
int oldtop = m_top;
int oldsel = m_selected;
-
/* first, move cursor */
switch (dir)
{
/* current selection invisible? */
if (m_top + m_items_per_page <= m_content->cursorGet())
{
- m_top = m_content->cursorGet() - m_items_per_page + 1;
+ int rest = m_content->size() % m_items_per_page;
+ if ( rest )
+ m_top = m_content->cursorGet() - rest + 1;
+ else
+ m_top = m_content->cursorGet() - m_items_per_page + 1;
if (m_top < 0)
m_top = 0;
}
/* now, look wether the current selection is out of screen */
m_selected = m_content->cursorGet();
-
while (m_selected < m_top)
{
m_top -= m_items_per_page;
/* m_top should be always valid here as it's selected */
m_top += m_items_per_page;
+ if (oldsel != m_selected)
+ /* emit */ selectionChanged();
+
+ updateScrollBar();
+
if (m_top != oldtop)
invalidate();
else if (m_selected != oldsel)
{
-
- /* redraw the old and newly selected */
+ /* 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);
void eListbox::moveSelectionTo(int index)
{
- m_content->cursorHome();
- m_content->cursorMove(index);
- moveSelection(justCheck);
+ if ( m_content )
+ {
+ m_content->cursorHome();
+ m_content->cursorMove(index);
+ moveSelection(justCheck);
+ }
+}
+
+int eListbox::getCurrentIndex()
+{
+ if ( m_content && m_content->cursorValid() )
+ return m_content->cursorGet();
+ return 0;
}
void eListbox::updateScrollBar()
{
+ if (!m_content || m_scrollbar_mode == showNever )
+ return;
int entries = m_content->size();
if ( m_content_changed )
{
m_scrollbar->move(ePoint(width-sbarwidth, 0));
m_scrollbar->resize(eSize(sbarwidth, height));
m_content->setSize(eSize(width-sbarwidth-5, m_itemheight));
- if ( !m_scrollbar->isVisible() )
- m_scrollbar->show();
+ m_scrollbar->show();
}
- else if ( m_scrollbar_mode != showAlways )
+ else
{
- if ( m_scrollbar->isVisible() )
- {
- m_content->setSize(eSize(width, m_itemheight));
- m_scrollbar->hide(); // why this hide dont work???
- }
+ m_content->setSize(eSize(width, m_itemheight));
+ m_scrollbar->hide();
}
}
- int curVisiblePage = m_top / m_items_per_page;
- if ( m_scrollbar->isVisible() &&
- m_prev_scrollbar_page != curVisiblePage)
+ if ( m_items_per_page && entries )
{
- m_prev_scrollbar_page = curVisiblePage;
- int pages = entries / m_items_per_page;
- 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);
- if (vis < 3)
- vis=3;
- m_scrollbar->setStartEnd(start,start+vis);
+ int curVisiblePage = m_top / m_items_per_page;
+ if (m_prev_scrollbar_page != curVisiblePage)
+ {
+ m_prev_scrollbar_page = curVisiblePage;
+ int pages = entries / m_items_per_page;
+ 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);
+ if (vis < 3)
+ vis=3;
+ m_scrollbar->setStartEnd(start,start+vis);
+ }
}
}
gPainter &painter = *(gPainter*)data2;
- if (m_scrollbar_mode != showNever)
- updateScrollBar();
-
m_content->cursorSave();
m_content->cursorMove(m_top - m_selected);
void eListbox::recalcSize()
{
m_content_changed=true;
+ m_prev_scrollbar_page=-1;
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. */
+ m_items_per_page = 0;
+
+ moveSelection(justCheck);
}
void eListbox::setItemHeight(int h)
m_selected = m_content->cursorGet();
moveSelection(justCheck);
-
+
if ((m_top <= index) && (index < (m_top + m_items_per_page)))
{
/* todo, calc exact invalidation... */
}
}
-void eListbox::entryReset()
+void eListbox::entryReset(bool cursorHome)
{
m_content_changed=true;
m_prev_scrollbar_page=-1;
- if (m_content)
- m_content->cursorHome();
- m_top = 0;
- m_selected = 0;
+ if ( cursorHome )
+ {
+ if (m_content)
+ m_content->cursorHome();
+ m_top = 0;
+ m_selected = 0;
+ }
+ moveSelection(justCheck);
invalidate();
}
git.cweiske.de / enigma2.git / blobdiff