void ScrollArea::_announceDeath(Widget *widget)
{
if (widget == mContent)
{
mContent = NULL;
checkPolicies();
}
else
{
throw GCN_EXCEPTION("Called by not-child.");
}
}
void ScrollArea::logic()
{
checkPolicies();
setVerticalScrollAmount(getVerticalScrollAmount());
setHorizontalScrollAmount(getHorizontalScrollAmount());
if (getContent() != NULL)
{
getContent()->setPosition(-mHScroll + getContent()->getFrameSize(),
-mVScroll + getContent()->getFrameSize());
getContent()->logic();
}
}
void ScrollArea::setContent(Widget* widget)
{
if (widget != NULL)
{
clear();
add(widget);
widget->setPosition(0,0);
}
else
{
clear();
}
checkPolicies();
}
void ScrollArea::logic()
{
checkPolicies();
setVerticalScrollAmount(getVerticalScrollAmount());
setHorizontalScrollAmount(getHorizontalScrollAmount());
if (mContent != NULL)
{
mContent->setPosition(-mHScroll + getContentDimension().x + mContent->getBorderSize(),
-mVScroll + getContentDimension().y + mContent->getBorderSize());
mContent->logic();
}
}
int ScrollArea::getHorizontalMaxScroll()
{
checkPolicies();
if (mContent == NULL)
{
return 0;
}
int value = mContent->getWidth() - getContentDimension().width + 2 * mContent->getBorderSize();
if (value < 0)
{
return 0;
}
return value;
}
void ScrollArea::setContent(Widget* widget)
{
if (mContent != NULL)
{
mContent->_setFocusHandler(NULL);
mContent->_setParent(NULL);
}
mContent = widget;
if (mContent != NULL)
{
mContent->_setFocusHandler(_getFocusHandler());
mContent->_setParent(this);
}
checkPolicies();
}
int ScrollArea::getHorizontalMaxScroll()
{
checkPolicies();
if (getContent() == NULL)
{
return 0;
}
int value = getContent()->getWidth() - getChildrenArea().width +
2 * getContent()->getFrameSize();
if (value < 0)
{
return 0;
}
return value;
}
int ScrollArea::getVerticalMaxScroll()
{
checkPolicies();
if (mContent == NULL)
{
return 0;
}
int value;
value = mContent->getHeight() - getContentDimension().height + 2 * mContent->getBorderSize();
if (value < 0)
{
return 0;
}
return value;
}
int ScrollArea::getVerticalMaxScroll()
{
checkPolicies();
if (getContent() == NULL)
{
return 0;
}
int value;
value = getContent()->getHeight() - getChildrenArea().height +
2 * getContent()->getFrameSize();
if (value < 0)
{
return 0;
}
return value;
}
void ScrollArea::setHeight(int height)
{
Widget::setHeight(height);
checkPolicies();
}
void ScrollArea::setScrollPolicy(ScrollPolicy hPolicy, ScrollPolicy vPolicy)
{
mHPolicy = hPolicy;
mVPolicy = vPolicy;
checkPolicies();
}
void ScrollArea::setVerticalScrollPolicy(ScrollPolicy vPolicy)
{
mVPolicy = vPolicy;
checkPolicies();
}
void ScrollArea::setHorizontalScrollPolicy(ScrollPolicy hPolicy)
{
mHPolicy = hPolicy;
checkPolicies();
}
void ScrollArea::setVerticalScrollPolicy(unsigned int vPolicy)
{
mVPolicy = vPolicy;
checkPolicies();
}
void ScrollArea::setDimension(const Rectangle& dimension)
{
Widget::setDimension(dimension);
checkPolicies();
}
void ScrollArea::setHorizontalScrollPolicy(unsigned int hPolicy)
{
mHPolicy = hPolicy;
checkPolicies();
}
void ScrollArea::setWidth(int width)
{
Widget::setWidth(width);
checkPolicies();
}
void ScrollArea::setScrollPolicy(unsigned int hPolicy, unsigned int vPolicy)
{
mHPolicy = hPolicy;
mVPolicy = vPolicy;
checkPolicies();
}