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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CGUIModalScreen.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "IGUIEnvironment.h"
#include "os.h"
#include "IVideoDriver.h"
#include "IGUISkin.h"
namespace irr
{
namespace gui
{
//! constructor
CGUIModalScreen::CGUIModalScreen(IGUIEnvironment* environment, IGUIElement* parent, s32 id)
: IGUIElement(EGUIET_MODAL_SCREEN, environment, parent, id, core::recti(0, 0, parent->getAbsolutePosition().getWidth(), parent->getAbsolutePosition().getHeight()) ),
MouseDownTime(0)
{
#ifdef _DEBUG
setDebugName("CGUIModalScreen");
#endif
setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
// this element is a tab group
setTabGroup(true);
}
bool CGUIModalScreen::canTakeFocus(IGUIElement* target) const
{
return (target && ((const IGUIElement*)target == this // this element can take it
|| isMyChild(target) // own children also
|| (target->getType() == EGUIET_MODAL_SCREEN ) // other modals also fine (is now on top or explicitely requested)
|| (target->getParent() && target->getParent()->getType() == EGUIET_MODAL_SCREEN ))) // children of other modals will do
;
}
bool CGUIModalScreen::isVisible() const
{
// any parent invisible?
IGUIElement * parentElement = getParent();
while ( parentElement )
{
if ( !parentElement->isVisible() )
return false;
parentElement = parentElement->getParent();
}
// if we have no children then the modal is probably abused as a way to block input
if ( Children.empty() )
{
return IGUIElement::isVisible();
}
// any child visible?
bool visible = false;
core::list<IGUIElement*>::ConstIterator it = Children.begin();
for (; it != Children.end(); ++it)
{
if ( (*it)->isVisible() )
{
visible = true;
break;
}
}
return visible;
}
bool CGUIModalScreen::isPointInside(const core::position2d<s32>& point) const
{
return true;
}
//! called if an event happened.
bool CGUIModalScreen::OnEvent(const SEvent& event)
{
if (!isEnabled() || !isVisible() )
return IGUIElement::OnEvent(event);
switch(event.EventType)
{
case EET_GUI_EVENT:
switch(event.GUIEvent.EventType)
{
case EGET_ELEMENT_FOCUSED:
if ( event.GUIEvent.Caller == this && isMyChild(event.GUIEvent.Element) )
{
Environment->removeFocus(0); // can't setFocus otherwise at it still has focus here
Environment->setFocus(event.GUIEvent.Element);
MouseDownTime = os::Timer::getTime();
return true;
}
if ( !canTakeFocus(event.GUIEvent.Caller))
{
if ( !Children.empty() )
Environment->setFocus(*(Children.begin()));
else
Environment->setFocus(this);
}
IGUIElement::OnEvent(event);
return false;
case EGET_ELEMENT_FOCUS_LOST:
if ( !canTakeFocus(event.GUIEvent.Element))
{
if ( isMyChild(event.GUIEvent.Caller) )
{
if ( !Children.empty() )
Environment->setFocus(*(Children.begin()));
else
Environment->setFocus(this);
}
else
{
MouseDownTime = os::Timer::getTime();
}
return true;
}
else
{
return IGUIElement::OnEvent(event);
}
case EGET_ELEMENT_CLOSED:
// do not interfere with children being removed
return IGUIElement::OnEvent(event);
default:
break;
}
break;
case EET_MOUSE_INPUT_EVENT:
if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
{
MouseDownTime = os::Timer::getTime();
}
default:
break;
}
IGUIElement::OnEvent(event); // anyone knows why events are passed on here? Causes p.e. problems when this is child of a CGUIWindow.
return true; // absorb everything else
}
//! draws the element and its children
void CGUIModalScreen::draw()
{
IGUISkin *skin = Environment->getSkin();
if (!skin)
return;
u32 now = os::Timer::getTime();
if (now - MouseDownTime < 300 && (now / 70)%2)
{
core::list<IGUIElement*>::Iterator it = Children.begin();
core::rect<s32> r;
video::SColor c = Environment->getSkin()->getColor(gui::EGDC_3D_HIGH_LIGHT);
for (; it != Children.end(); ++it)
{
if ((*it)->isVisible())
{
r = (*it)->getAbsolutePosition();
r.LowerRightCorner.X += 1;
r.LowerRightCorner.Y += 1;
r.UpperLeftCorner.X -= 1;
r.UpperLeftCorner.Y -= 1;
skin->draw2DRectangle(this, c, r, &AbsoluteClippingRect);
}
}
}
IGUIElement::draw();
}
//! Removes a child.
void CGUIModalScreen::removeChild(IGUIElement* child)
{
IGUIElement::removeChild(child);
if (Children.empty())
{
remove();
}
}
//! adds a child
void CGUIModalScreen::addChild(IGUIElement* child)
{
IGUIElement::addChild(child);
Environment->setFocus(child);
}
void CGUIModalScreen::updateAbsolutePosition()
{
core::rect<s32> parentRect(0,0,0,0);
if (Parent)
{
parentRect = Parent->getAbsolutePosition();
RelativeRect.UpperLeftCorner.X = 0;
RelativeRect.UpperLeftCorner.Y = 0;
RelativeRect.LowerRightCorner.X = parentRect.getWidth();
RelativeRect.LowerRightCorner.Y = parentRect.getHeight();
}
IGUIElement::updateAbsolutePosition();
}
//! Writes attributes of the element.
void CGUIModalScreen::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
{
IGUIElement::serializeAttributes(out,options);
}
//! Reads attributes of the element
void CGUIModalScreen::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
{
IGUIElement::deserializeAttributes(in, options);
}
} // end namespace gui
} // end namespace irr
#endif // _IRR_COMPILE_WITH_GUI_
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