forked from paupawsan/Irrlicht
/
CGUIEnvironment.cpp
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CGUIEnvironment.cpp
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// Copyright (C) 2002-2009 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CGUIEnvironment.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "IVideoDriver.h"
#include "CGUISkin.h"
#include "CGUIButton.h"
#include "CGUIWindow.h"
#include "CGUIScrollBar.h"
#include "CGUIFont.h"
#include "CGUISpriteBank.h"
#include "CGUIImage.h"
#include "CGUIMeshViewer.h"
#include "CGUICheckBox.h"
#include "CGUIListBox.h"
#include "CGUITreeView.h"
#include "CGUIImageList.h"
#include "CGUIFileOpenDialog.h"
#include "CGUIColorSelectDialog.h"
#include "CGUIStaticText.h"
#include "CGUIEditBox.h"
#include "CGUISpinBox.h"
#include "CGUIInOutFader.h"
#include "CGUIMessageBox.h"
#include "CGUIModalScreen.h"
#include "CGUITabControl.h"
#include "CGUIContextMenu.h"
#include "CGUIComboBox.h"
#include "CGUIMenu.h"
#include "CGUIToolBar.h"
#include "CGUITable.h"
#if defined(_IRR_COMPILE_WITH_CGUITTFONT_) // >> IrrlichtML modification 2010.06.29
#include "CGUITTFont.h"
#endif // <<
#include "CDefaultGUIElementFactory.h"
#include "IWriteFile.h"
#include "IXMLWriter.h"
#include "BuiltInFont.h"
#include "os.h"
namespace irr
{
namespace gui
{
const wchar_t* IRR_XML_FORMAT_GUI_ENV = L"irr_gui";
const wchar_t* IRR_XML_FORMAT_GUI_ELEMENT = L"element";
const wchar_t* IRR_XML_FORMAT_GUI_ELEMENT_ATTR_TYPE = L"type";
//! constructor
CGUIEnvironment::CGUIEnvironment(io::IFileSystem* fs, video::IVideoDriver* driver, IOSOperator* op)
: IGUIElement(EGUIET_ELEMENT, 0, 0, 0, core::rect<s32>(core::position2d<s32>(0,0), driver ? core::dimension2d<s32>(driver->getScreenSize()) : core::dimension2d<s32>(0,0))),
Driver(driver), Hovered(0), HoveredNoSubelement(0), Focus(0), LastHoveredMousePos(0,0), CurrentSkin(0),
FileSystem(fs), UserReceiver(0), Operator(op)
{
if (Driver)
Driver->grab();
if (FileSystem)
FileSystem->grab();
if (Operator)
Operator->grab();
#ifdef _DEBUG
IGUIEnvironment::setDebugName("CGUIEnvironment");
#endif
// gui factory
IGUIElementFactory* factory = new CDefaultGUIElementFactory(this);
registerGUIElementFactory(factory);
factory->drop();
loadBuiltInFont();
IGUISkin* skin = createSkin( gui::EGST_WINDOWS_METALLIC );
setSkin(skin);
skin->drop();
//set tooltip default
ToolTip.LastTime = 0;
ToolTip.EnterTime = 0;
ToolTip.LaunchTime = 1000;
ToolTip.RelaunchTime = 500;
ToolTip.Element = 0;
// environment is root tab group
Environment = this;
setTabGroup(true);
}
//! destructor
CGUIEnvironment::~CGUIEnvironment()
{
if ( HoveredNoSubelement && HoveredNoSubelement != this )
{
HoveredNoSubelement->drop();
HoveredNoSubelement = 0;
}
if (Hovered && Hovered != this)
{
Hovered->drop();
Hovered = 0;
}
if (Driver)
{
Driver->drop();
Driver = 0;
}
if (Focus)
{
Focus->drop();
Focus = 0;
}
if (ToolTip.Element)
{
ToolTip.Element->drop();
ToolTip.Element = 0;
}
if (FileSystem)
{
FileSystem->drop();
FileSystem = 0;
}
if (Operator)
{
Operator->drop();
Operator = 0;
}
// drop skin
if (CurrentSkin)
{
CurrentSkin->drop();
CurrentSkin = 0;
}
u32 i;
// delete all sprite banks
for (i=0; i<Banks.size(); ++i)
if (Banks[i].Bank)
Banks[i].Bank->drop();
// delete all fonts
for (i=0; i<Fonts.size(); ++i)
Fonts[i].Font->drop();
// >> IrrlichtML modification 2010.06.29
#if defined(_IRR_COMPILE_WITH_CGUITTFONT_)
// delete all ttfonts
for (i=0; i<TTFonts.size(); ++i)
TTFonts[i].Font->drop();
#endif
// <<
// remove all factories
for (i=0; i<GUIElementFactoryList.size(); ++i)
GUIElementFactoryList[i]->drop();
}
void CGUIEnvironment::loadBuiltInFont()
{
io::path filename = "#DefaultFont";
io::IReadFile* file = io::createMemoryReadFile(BuiltInFontData, BuiltInFontDataSize, filename, false);
CGUIFont* font = new CGUIFont(this, filename );
if (!font->load(file))
{
os::Printer::log("Error: Could not load built-in Font. Did you compile without the BMP loader?", ELL_ERROR);
font->drop();
file->drop();
return;
}
SFont f;
f.NamedPath.setPath(filename);
f.Font = font;
Fonts.push_back(f);
file->drop();
}
//! draws all gui elements
void CGUIEnvironment::drawAll()
{
if (Driver)
{
core::dimension2d<s32> dim(Driver->getScreenSize());
if (AbsoluteRect.LowerRightCorner.X != dim.Width ||
AbsoluteRect.LowerRightCorner.Y != dim.Height)
{
// resize gui environment
DesiredRect.LowerRightCorner = dim;
AbsoluteClippingRect = DesiredRect;
AbsoluteRect = DesiredRect;
updateAbsolutePosition();
}
}
// make sure tooltip is always on top
if (ToolTip.Element)
bringToFront(ToolTip.Element);
draw();
OnPostRender ( os::Timer::getTime () );
}
//! sets the focus to an element
bool CGUIEnvironment::setFocus(IGUIElement* element)
{
if (Focus == element)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
// GUI Environment should not get the focus
if (element == this)
element = 0;
// stop element from being deleted
if (element)
element->grab();
// focus may change or be removed in this call
IGUIElement *currentFocus = 0;
if (Focus)
{
currentFocus = Focus;
currentFocus->grab();
SEvent e;
e.EventType = EET_GUI_EVENT;
e.GUIEvent.Caller = Focus;
e.GUIEvent.Element = element;
e.GUIEvent.EventType = EGET_ELEMENT_FOCUS_LOST;
if (Focus->OnEvent(e))
{
if (element)
element->drop();
currentFocus->drop();
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
currentFocus->drop();
currentFocus = 0;
}
if (element)
{
currentFocus = Focus;
if (currentFocus)
currentFocus->grab();
// send focused event
SEvent e;
e.EventType = EET_GUI_EVENT;
e.GUIEvent.Caller = element;
e.GUIEvent.Element = Focus;
e.GUIEvent.EventType = EGET_ELEMENT_FOCUSED;
if (element->OnEvent(e))
{
if (element)
element->drop();
if (currentFocus)
currentFocus->drop();
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
}
if (currentFocus)
currentFocus->drop();
if (Focus)
Focus->drop();
// element is the new focus so it doesn't have to be dropped
Focus = element;
return true;
}
//! returns the element with the focus
IGUIElement* CGUIEnvironment::getFocus() const
{
return Focus;
}
//! removes the focus from an element
bool CGUIEnvironment::removeFocus(IGUIElement* element)
{
if (Focus && Focus==element)
{
SEvent e;
e.EventType = EET_GUI_EVENT;
e.GUIEvent.Caller = Focus;
e.GUIEvent.Element = 0;
e.GUIEvent.EventType = EGET_ELEMENT_FOCUS_LOST;
if (Focus->OnEvent(e))
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
}
if (Focus)
{
Focus->drop();
Focus = 0;
}
return true;
}
//! Returns if the element has focus
bool CGUIEnvironment::hasFocus(IGUIElement* element) const
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return (element == Focus);
}
//! returns the current video driver
video::IVideoDriver* CGUIEnvironment::getVideoDriver() const
{
return Driver;
}
//! returns the current file system
io::IFileSystem* CGUIEnvironment::getFileSystem() const
{
return FileSystem;
}
//! returns the current file system
IOSOperator* CGUIEnvironment::getOSOperator() const
{
return Operator;
}
//! clear all GUI elements
void CGUIEnvironment::clear()
{
// Remove the focus
if (Focus)
{
Focus->drop();
Focus = 0;
}
if (Hovered && Hovered != this)
{
Hovered->drop();
Hovered = 0;
}
if ( HoveredNoSubelement && HoveredNoSubelement != this)
{
HoveredNoSubelement->drop();
HoveredNoSubelement = 0;
}
// get the root's children in case the root changes in future
const core::list<IGUIElement*>& children = getRootGUIElement()->getChildren();
while (!children.empty())
(*children.getLast())->remove();
}
//! called by ui if an event happened.
bool CGUIEnvironment::OnEvent(const SEvent& event)
{
bool ret = false;
if (UserReceiver
&& (event.EventType != EET_MOUSE_INPUT_EVENT)
&& (event.EventType != EET_KEY_INPUT_EVENT)
&& (event.EventType != EET_GUI_EVENT || event.GUIEvent.Caller != this))
{
ret = UserReceiver->OnEvent(event);
}
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return ret;
}
//
void CGUIEnvironment::OnPostRender( u32 time )
{
// launch tooltip
if ( ToolTip.Element == 0 &&
HoveredNoSubelement && HoveredNoSubelement != this &&
(time - ToolTip.EnterTime >= ToolTip.LaunchTime
|| (time - ToolTip.LastTime >= ToolTip.RelaunchTime && time - ToolTip.LastTime < ToolTip.LaunchTime)) &&
HoveredNoSubelement->getToolTipText().size() &&
getSkin() &&
getSkin()->getFont(EGDF_TOOLTIP)
)
{
core::rect<s32> pos;
pos.UpperLeftCorner = LastHoveredMousePos;
core::dimension2du dim = getSkin()->getFont(EGDF_TOOLTIP)->getDimension(HoveredNoSubelement->getToolTipText().c_str());
dim.Width += getSkin()->getSize(EGDS_TEXT_DISTANCE_X)*2;
dim.Height += getSkin()->getSize(EGDS_TEXT_DISTANCE_Y)*2;
pos.UpperLeftCorner.Y -= dim.Height+1;
pos.LowerRightCorner.Y = pos.UpperLeftCorner.Y + dim.Height-1;
pos.LowerRightCorner.X = pos.UpperLeftCorner.X + dim.Width;
pos.constrainTo(getAbsolutePosition());
ToolTip.Element = addStaticText(HoveredNoSubelement->getToolTipText().c_str(), pos, true, true, this, -1, true);
ToolTip.Element->setOverrideColor(getSkin()->getColor(EGDC_TOOLTIP));
ToolTip.Element->setBackgroundColor(getSkin()->getColor(EGDC_TOOLTIP_BACKGROUND));
ToolTip.Element->setOverrideFont(getSkin()->getFont(EGDF_TOOLTIP));
ToolTip.Element->setSubElement(true);
ToolTip.Element->grab();
s32 textHeight = ToolTip.Element->getTextHeight();
pos = ToolTip.Element->getRelativePosition();
pos.LowerRightCorner.Y = pos.UpperLeftCorner.Y + textHeight;
ToolTip.Element->setRelativePosition(pos);
}
if (ToolTip.Element && ToolTip.Element->isVisible() ) // (isVisible() check only because we might use visibility for ToolTip one day)
{
ToolTip.LastTime = time;
// got invisible or removed in the meantime?
if ( !HoveredNoSubelement ||
!HoveredNoSubelement->isVisible() ||
!HoveredNoSubelement->getParent()
) // got invisible or removed in the meantime?
{
ToolTip.Element->remove();
ToolTip.Element->drop();
ToolTip.Element = 0;
}
}
IGUIElement::OnPostRender ( time );
}
//
void CGUIEnvironment::updateHoveredElement(core::position2d<s32> mousePos)
{
IGUIElement* lastHovered = Hovered;
IGUIElement* lastHoveredNoSubelement = HoveredNoSubelement;
LastHoveredMousePos = mousePos;
Hovered = getElementFromPoint(mousePos);
if ( ToolTip.Element && Hovered == ToolTip.Element )
{
// When the mouse is over the ToolTip we remove that so it will be re-created at a new position.
// Note that ToolTip.EnterTime does not get changed here, so it will be re-created at once.
ToolTip.Element->remove();
ToolTip.Element->drop();
ToolTip.Element = 0;
// Get the real Hovered
Hovered = getElementFromPoint(mousePos);
}
// for tooltips we want the element itself and not some of it's subelements
HoveredNoSubelement = Hovered;
while ( HoveredNoSubelement && HoveredNoSubelement->isSubElement() )
{
HoveredNoSubelement = HoveredNoSubelement->getParent();
}
if (Hovered && Hovered != this)
Hovered->grab();
if ( HoveredNoSubelement && HoveredNoSubelement != this)
HoveredNoSubelement->grab();
if (Hovered != lastHovered)
{
SEvent event;
event.EventType = EET_GUI_EVENT;
if (lastHovered)
{
event.GUIEvent.Caller = lastHovered;
event.GUIEvent.EventType = EGET_ELEMENT_LEFT;
lastHovered->OnEvent(event);
}
if ( Hovered )
{
event.GUIEvent.Caller = Hovered;
event.GUIEvent.Element = Hovered;
event.GUIEvent.EventType = EGET_ELEMENT_HOVERED;
Hovered->OnEvent(event);
}
}
if ( lastHoveredNoSubelement != HoveredNoSubelement )
{
if (ToolTip.Element)
{
ToolTip.Element->remove();
ToolTip.Element->drop();
ToolTip.Element = 0;
}
if ( HoveredNoSubelement )
{
u32 now = os::Timer::getTime();
ToolTip.EnterTime = now;
}
}
if (lastHovered && lastHovered != this)
lastHovered->drop();
if (lastHoveredNoSubelement && lastHoveredNoSubelement != this)
lastHoveredNoSubelement->drop();
}
//! This sets a new event receiver for gui events. Usually you do not have to
//! use this method, it is used by the internal engine.
void CGUIEnvironment::setUserEventReceiver(IEventReceiver* evr)
{
UserReceiver = evr;
}
//! posts an input event to the environment
bool CGUIEnvironment::postEventFromUser(const SEvent& event)
{
switch(event.EventType)
{
case EET_GUI_EVENT:
// hey, why is the user sending gui events..?
break;
case EET_MOUSE_INPUT_EVENT:
updateHoveredElement(core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
if ( (Hovered && Hovered != Focus) || !Focus )
{
setFocus(Hovered);
}
// sending input to focus
if (Focus && Focus->OnEvent(event))
return true;
// focus could have died in last call
if (!Focus && Hovered)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return Hovered->OnEvent(event);
}
break;
case EET_KEY_INPUT_EVENT:
{
// send focus changing event
if (event.EventType == EET_KEY_INPUT_EVENT &&
event.KeyInput.PressedDown &&
event.KeyInput.Key == KEY_TAB)
{
IGUIElement *next = getNextElement(event.KeyInput.Shift, event.KeyInput.Control);
if (next && next != Focus)
{
if (setFocus(next))
return true;
}
}
if (Focus)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return Focus->OnEvent(event);
}
}
break;
#if defined(_IRR_USE_INPUT_METHOD_) // >> IrrlichtML modification 2010.06.29
case EET_IMPUT_METHOD_EVENT:
{
// todo : if CGUIEdit has not focus, close input method. Use WM_NOTIFY message.
if (Focus)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return Focus->OnEvent(event);
}
}
break;
#endif // <<
default:
break;
} // end switch
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
//! returns the current gui skin
IGUISkin* CGUIEnvironment::getSkin() const
{
return CurrentSkin;
}
//! Sets a new GUI Skin
void CGUIEnvironment::setSkin(IGUISkin* skin)
{
if (CurrentSkin==skin)
return;
if (CurrentSkin)
CurrentSkin->drop();
CurrentSkin = skin;
if (CurrentSkin)
CurrentSkin->grab();
}
//! Creates a new GUI Skin based on a template.
/** \return Returns a pointer to the created skin.
If you no longer need the skin, you should call IGUISkin::drop().
See IReferenceCounted::drop() for more information. */
IGUISkin* CGUIEnvironment::createSkin(EGUI_SKIN_TYPE type)
{
IGUISkin* skin = new CGUISkin(type, Driver);
IGUIFont* builtinfont = getBuiltInFont();
IGUIFontBitmap* bitfont = 0;
if (builtinfont && builtinfont->getType() == EGFT_BITMAP)
bitfont = (IGUIFontBitmap*)builtinfont;
IGUISpriteBank* bank = 0;
skin->setFont(builtinfont);
if (bitfont)
bank = bitfont->getSpriteBank();
skin->setSpriteBank(bank);
return skin;
}
//! Returns the default element factory which can create all built in elements
IGUIElementFactory* CGUIEnvironment::getDefaultGUIElementFactory() const
{
return getGUIElementFactory(0);
}
//! Adds an element factory to the gui environment.
/** Use this to extend the gui environment with new element types which it should be
able to create automaticly, for example when loading data from xml files. */
void CGUIEnvironment::registerGUIElementFactory(IGUIElementFactory* factoryToAdd)
{
if (factoryToAdd)
{
factoryToAdd->grab();
GUIElementFactoryList.push_back(factoryToAdd);
}
}
//! Returns amount of registered scene node factories.
u32 CGUIEnvironment::getRegisteredGUIElementFactoryCount() const
{
return GUIElementFactoryList.size();
}
//! Returns a scene node factory by index
IGUIElementFactory* CGUIEnvironment::getGUIElementFactory(u32 index) const
{
if (index < GUIElementFactoryList.size())
return GUIElementFactoryList[index];
else
return 0;
}
//! adds a GUI Element using its name
IGUIElement* CGUIEnvironment::addGUIElement(const c8* elementName, IGUIElement* parent)
{
IGUIElement* node=0;
if (!parent)
parent = this;
for (u32 i=0; i<GUIElementFactoryList.size() && !node; ++i)
node = GUIElementFactoryList[i]->addGUIElement(elementName, parent);
return node;
}
//! Saves the current gui into a file.
//! \param filename: Name of the file .
bool CGUIEnvironment::saveGUI(const io::path& filename, IGUIElement* start)
{
io::IWriteFile* file = FileSystem->createAndWriteFile(filename);
if (!file)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
bool ret = saveGUI(file, start);
file->drop();
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return ret;
}
//! Saves the current gui into a file.
bool CGUIEnvironment::saveGUI(io::IWriteFile* file, IGUIElement* start)
{
if (!file)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
io::IXMLWriter* writer = FileSystem->createXMLWriter(file);
if (!writer)
{
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
writer->writeXMLHeader();
writeGUIElement(writer, start ? start : this);
writer->drop();
return true;
}
//! Loads the gui. Note that the current gui is not cleared before.
//! \param filename: Name of the file.
bool CGUIEnvironment::loadGUI(const io::path& filename, IGUIElement* parent)
{
io::IReadFile* read = FileSystem->createAndOpenFile(filename);
if (!read)
{
os::Printer::log("Unable to open gui file", filename, ELL_ERROR);
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
bool ret = loadGUI(read, parent);
read->drop();
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return ret;
}
//! Loads the gui. Note that the current gui is not cleared before.
bool CGUIEnvironment::loadGUI(io::IReadFile* file, IGUIElement* parent)
{
if (!file)
{
os::Printer::log("Unable to open GUI file", ELL_ERROR);
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
io::IXMLReader* reader = FileSystem->createXMLReader(file);
if (!reader)
{
os::Printer::log("GUI is not a valid XML file", file->getFileName(), ELL_ERROR);
_IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
return false;
}
// read file
while(reader->read())
{
readGUIElement(reader, parent);
}
// finish up
reader->drop();
return true;
}
//! reads an element
void CGUIEnvironment::readGUIElement(io::IXMLReader* reader, IGUIElement* node)
{
if (!reader)
return;
io::EXML_NODE nodeType = reader->getNodeType();
if (nodeType == io::EXN_NONE || nodeType == io::EXN_UNKNOWN || nodeType == io::EXN_ELEMENT_END)
return;
if (!wcscmp(IRR_XML_FORMAT_GUI_ENV, reader->getNodeName()))
{
if (!node)
node = this; // root
}
else if (!wcscmp(IRR_XML_FORMAT_GUI_ELEMENT, reader->getNodeName()))
{
// find node type and create it
const core::stringc attrName = reader->getAttributeValue(IRR_XML_FORMAT_GUI_ELEMENT_ATTR_TYPE);
node = addGUIElement(attrName.c_str(), node);
if (!node)
os::Printer::log("Could not create GUI element of unknown type", attrName.c_str());
}
// read attributes
while(reader->read())
{
bool endreached = false;
switch (reader->getNodeType())
{
case io::EXN_ELEMENT_END:
if (!wcscmp(IRR_XML_FORMAT_GUI_ELEMENT, reader->getNodeName()) ||
!wcscmp(IRR_XML_FORMAT_GUI_ENV, reader->getNodeName()))
{
endreached = true;
}
break;
case io::EXN_ELEMENT:
if (!wcscmp(L"attributes", reader->getNodeName()))
{
// read attributes
io::IAttributes* attr = FileSystem->createEmptyAttributes(Driver);
attr->read(reader, true);
if (node)
node->deserializeAttributes(attr);
attr->drop();
}
else
if (!wcscmp(IRR_XML_FORMAT_GUI_ELEMENT, reader->getNodeName()) ||
!wcscmp(IRR_XML_FORMAT_GUI_ENV, reader->getNodeName()))
{
readGUIElement(reader, node);
}
else
{
os::Printer::log("Found unknown element in irrlicht GUI file",
core::stringc(reader->getNodeName()).c_str());
}
break;
default:
break;
}
if (endreached)
break;
}
}
//! writes an element
void CGUIEnvironment::writeGUIElement(io::IXMLWriter* writer, IGUIElement* node)
{
if (!writer || !node )
return;
const wchar_t* name = 0;
// write properties
io::IAttributes* attr = FileSystem->createEmptyAttributes();
node->serializeAttributes(attr);
// all gui elements must have at least one attribute
// if they have nothing then we ignore them.
if (attr->getAttributeCount() != 0)
{
if (node == this)
{
name = IRR_XML_FORMAT_GUI_ENV;
writer->writeElement(name, false);
}
else
{
name = IRR_XML_FORMAT_GUI_ELEMENT;
writer->writeElement(name, false, IRR_XML_FORMAT_GUI_ELEMENT_ATTR_TYPE,
core::stringw(node->getTypeName()).c_str());
}
writer->writeLineBreak();
writer->writeLineBreak();
attr->write(writer);
writer->writeLineBreak();
}
// write children
core::list<IGUIElement*>::ConstIterator it = node->getChildren().begin();
for (; it != node->getChildren().end(); ++it)
{
if (!(*it)->isSubElement())
writeGUIElement(writer, (*it));
}
// write closing brace if required
if (attr->getAttributeCount() != 0)
{
writer->writeClosingTag(name);
writer->writeLineBreak();
writer->writeLineBreak();
}
attr->drop();
}
//! Writes attributes of the environment
void CGUIEnvironment::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
{
IGUISkin* skin = getSkin();
if (skin)
{
out->addEnum("Skin", getSkin()->getType(), GUISkinTypeNames);
skin->serializeAttributes(out, options);
}
}
//! Reads attributes of the environment
void CGUIEnvironment::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
{
if (in->existsAttribute("Skin"))
{
IGUISkin *skin = getSkin();
EGUI_SKIN_TYPE t = (EGUI_SKIN_TYPE) in->getAttributeAsEnumeration("Skin",GUISkinTypeNames);
if ( !skin || t != skin->getType())
{
skin = createSkin(t);
setSkin(skin);
skin->drop();
}
skin = getSkin();
if (skin)
{
skin->deserializeAttributes(in, options);
}
}
RelativeRect = AbsoluteRect =
core::rect<s32>(core::position2d<s32>(0,0),
Driver ? core::dimension2di(Driver->getScreenSize()) : core::dimension2d<s32>(0,0));
}
//! adds a button. The returned pointer must not be dropped.
IGUIButton* CGUIEnvironment::addButton(const core::rect<s32>& rectangle, IGUIElement* parent, s32 id, const wchar_t* text, const wchar_t *tooltiptext)
{
IGUIButton* button = new CGUIButton(this, parent ? parent : this, id, rectangle);
if (text)