extern void dumpRegion(const gRegion ®ion);
-eWidget::eWidget(eWidget *parent): m_parent(parent)
+eWidget::eWidget(eWidget *parent): m_animation(this), m_parent(parent ? parent->child() : 0)
{
m_vis = 0;
+ m_layer = 0;
m_desktop = 0;
-
- if (parent)
+ m_have_background_color = 0;
+ m_z_position = 0;
+ m_client_offset = eSize(0, 0);
+ if (m_parent)
m_vis = wVisShow;
-
- if (parent)
- parent->m_childs.push_back(this);
+ if (m_parent)
+ {
+ insertIntoParent();
+ m_parent->getStyle(m_style);
+ }
+
+ m_current_focus = 0;
+ m_focus_owner = 0;
+ m_notify_child_on_position_change = 1;
}
void eWidget::move(ePoint pos)
{
+ pos = pos + m_client_offset;
+ if (m_position == pos)
+ return;
+
+ /* ?? what about native move support? */
+ invalidate();
+
m_position = pos;
-
event(evtChangedPosition);
+ if (m_notify_child_on_position_change)
+ for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
+ i->event(evtParentChangedPosition);
+ recalcClipRegionsWhenVisible();
+ /* try native move if supported. */
+ if ((m_vis & wVisShow) && ((!m_desktop) || m_desktop->movedWidget(this)))
+ invalidate();
}
void eWidget::resize(eSize size)
{
- event(evtWillChangeSize, &size);
+ /* same strategy as with move: we first check if
+ the size changed at all, and if it did, we
+ invalidate both the old and new area.
+ TODO: check if either the old or new area
+ fits into the other completely, and invalidate
+ only once. */
+ eSize old_size = m_size;
+ eSize old_offset = m_client_offset;
+ m_client_size = size;
+ 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);
+
+ if (m_notify_child_on_position_change)
+ for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
+ i->event(evtParentChangedPosition); /* position/size is the same here */
+
+ recalcClipRegionsWhenVisible(); invalidate();
}
void eWidget::invalidate(const gRegion ®ion)
{
- gRegion res = /* region & */ m_visible_with_childs;
+ /* we determine the area to redraw, and re-position this
+ area to the absolute position, and then call the
+ desktop's invalidate() with that, which adds this
+ area into the dirty region. */
+ gRegion res = m_visible_with_childs;
+ if (region.valid())
+ res &= region;
+
if (res.empty())
return;
-
eWidget *root = this;
ePoint abspos = position();
+ int target_layer = m_layer;
+
while (root && !root->m_desktop)
{
root = root->m_parent;
- assert(root);
+ ASSERT(root);
+ if (root->m_layer != -1)
+ target_layer = root->m_layer;
abspos += root->position();
}
-
res.moveBy(abspos);
// eDebug("region to invalidate:");
// dumpRegion(res);
- root->m_desktop->invalidate(res);
+ root->m_desktop->invalidate(res, this, target_layer);
}
void eWidget::show()
{
if (m_vis & wVisShow)
return;
-
- m_vis |= wVisShow;
+
+ m_vis |= wVisShow;
+// eDebug("show widget %p", this);
+ notifyShowHide();
/* TODO: optimize here to only recalc what's required. possibly merge with hide. */
eWidget *root = this;
ePoint abspos = position();
+ int target_layer = m_layer;
+
while (root && !root->m_desktop)
{
root = root->m_parent;
- assert(root);
+ if (!root)
+ {
+ /* oops: our root widget does not have a desktop associated.
+ probably somebody already erased the root, but tries some
+ operations on a child window.
+ ignore them for now. */
+ /* ASSERT(root); */
+ return;
+ }
+ if (root->m_layer != -1)
+ target_layer = root->m_layer;
abspos += root->position();
}
- root->m_desktop->recalcClipRegions();
+ root->m_desktop->recalcClipRegions(root);
gRegion abs = m_visible_with_childs;
abs.moveBy(abspos);
- root->m_desktop->invalidate(abs);
+ root->m_desktop->invalidate(abs, this, target_layer);
}
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;
+ notifyShowHide();
+
/* TODO: optimize here to only recalc what's required. possibly merge with show. */
eWidget *root = this;
ePoint abspos = position();
while (root && !root->m_desktop)
{
root = root->m_parent;
+ if (!root)
+ return;
abspos += root->position();
}
- assert(root->m_desktop);
+ ASSERT(root->m_desktop);
gRegion abs = m_visible_with_childs;
abs.moveBy(abspos);
- root->m_desktop->recalcClipRegions();
+ root->m_desktop->recalcClipRegions(root);
root->m_desktop->invalidate(abs);
}
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::setZPosition(int z)
+{
+ m_z_position = z;
+ if (!m_parent)
+ return;
+ m_parent->m_childs.remove(this);
+ insertIntoParent(); /* now at the new Z position */
+}
+
+void eWidget::setTransparent(int transp)
+{
+ if (isTransparent() != transp)
+ {
+ if (transp)
+ m_vis |= wVisTransparent;
+ else
+ m_vis &=~wVisTransparent;
+ recalcClipRegionsWhenVisible();
+ }
+}
+
+ePoint eWidget::getAbsolutePosition()
+{
+ eWidget *root = this;
+ ePoint abspos = position();
+
+ while (root && !root->m_desktop)
+ {
+ root = root->m_parent;
+ ASSERT(root);
+ abspos += root->position();
+ }
+
+ return abspos;
+}
+
+void eWidget::mayKillFocus()
+{
+ setFocus(0);
+ /* when we have the focus, remove it first. */
+ if (m_focus_owner)
+ m_focus_owner->setFocus(0);
+}
+
eWidget::~eWidget()
{
- /* destroy all childs */
+ hide();
+ if (m_parent)
+ m_parent->m_childs.remove(this);
+
+ m_parent = 0;
+
+ /* tell all childs that the parent is not anymore existing */
ePtrList<eWidget>::iterator i(m_childs.begin());
while (i != m_childs.end())
{
- delete *i;
+ (*i)->parentRemoved();
i = m_childs.erase(i);
}
}
-void eWidget::doPaint(gPainter &painter, const gRegion &r)
+void eWidget::insertIntoParent()
+{
+ ePtrList<eWidget>::iterator i = m_parent->m_childs.begin();
+ for(;;)
+ {
+ if ((i == m_parent->m_childs.end()) || (i->m_z_position > m_z_position))
+ {
+ m_parent->m_childs.insert(i, this);
+ return;
+ }
+ ++i;
+ }
+}
+
+void eWidget::doPaint(gPainter &painter, const gRegion &r, int layer)
{
if (m_visible_with_childs.empty())
return;
-
- gRegion region = r;
+ gRegion region = r, childs = r;
/* we were in parent's space, now we are in local space */
region.moveBy(-position());
-
painter.moveOffset(position());
+ /* check if there's anything for us to paint */
+ if (layer == m_layer)
+ {
+ region &= m_visible_region;
+ if (!region.empty())
+ {
+ painter.resetClip(region);
+ event(evtPaint, ®ion, &painter);
+ }
+ }
+
+ childs.moveBy(-position());
/* walk all childs */
for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
- i->doPaint(painter, region);
-
- /* check if there's anything for us to paint */
- region &= m_visible_region;
-
- painter.resetClip(region);
- event(evtPaint, ®ion, &painter);
-
+ i->doPaint(painter, childs, layer);
painter.moveOffset(-position());
}
+void eWidget::recalcClipRegionsWhenVisible()
+{
+ eWidget *t = this;
+ do
+ {
+ if (!(t->m_vis & wVisShow))
+ break;
+ if (t->m_desktop)
+ {
+ t->m_desktop->recalcClipRegions(t);
+ break;
+ }
+ t = t->m_parent;
+ ASSERT(t);
+ } while(1);
+}
+
+void eWidget::parentRemoved()
+{
+ m_parent = 0;
+}
+
int eWidget::event(int event, void *data, void *data2)
{
switch (event)
{
case evtPaint:
{
- static int counter = 0x18;
gPainter &painter = *(gPainter*)data2;
-// eDebug("eWidget::evtPaint %d", counter);
+ // eDebug("eWidget::evtPaint");
// dumpRegion(*(gRegion*)data);
- painter.setBackgroundColor(gColor(++counter));
- painter.clear();
+ if (!isTransparent())
+ {
+ 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();
+ }
+ } else
+ {
+ eWidget *w = this;
+ while (w && !w->m_have_background_color)
+ w = w->m_parent;
+
+ if (w)
+ painter.setBackgroundColor(w->m_background_color);
+ }
break;
}
case evtKey:
m_size = *static_cast<eSize*>(data);
break;
case evtChangedSize:
- {
m_clip_region = gRegion(eRect(ePoint(0, 0), m_size));
break;
- }
+ case evtParentChangedPosition:
+ for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
+ i->event(evtParentChangedPosition);
+ 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);
+}
+
+void eWidget::notifyShowHide()
+{
+ event(evtParentVisibilityChanged);
+ for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
+ i->notifyShowHide();
+}
git.cweiske.de / enigma2.git / blobdiff