590 lines
19 KiB
C++
590 lines
19 KiB
C++
// NasalCanvas.cxx -- expose Canvas classes to Nasal
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//
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// Written by James Turner, started 2012.
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//
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// Copyright (C) 2012 James Turner
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "NasalCanvas.hxx"
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#include <Canvas/canvas_mgr.hxx>
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#include <Canvas/gui_mgr.hxx>
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#include <Main/globals.hxx>
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#include <Scripting/NasalSys.hxx>
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#include <osgGA/GUIEventAdapter>
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#include <simgear/sg_inlines.h>
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#include <simgear/canvas/Canvas.hxx>
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#include <simgear/canvas/CanvasWindow.hxx>
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#include <simgear/canvas/elements/CanvasElement.hxx>
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#include <simgear/canvas/elements/CanvasText.hxx>
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#include <simgear/canvas/layout/BoxLayout.hxx>
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#include <simgear/canvas/layout/NasalWidget.hxx>
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#include <simgear/canvas/events/CustomEvent.hxx>
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#include <simgear/canvas/events/KeyboardEvent.hxx>
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#include <simgear/canvas/events/MouseEvent.hxx>
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#include <simgear/nasal/cppbind/from_nasal.hxx>
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#include <simgear/nasal/cppbind/to_nasal.hxx>
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#include <simgear/nasal/cppbind/NasalHash.hxx>
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#include <simgear/nasal/cppbind/Ghost.hxx>
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extern naRef propNodeGhostCreate(naContext c, SGPropertyNode* n);
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namespace sc = simgear::canvas;
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template<class Element>
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naRef elementGetNode(Element& element, naContext c)
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{
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return propNodeGhostCreate(c, element.getProps());
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}
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typedef nasal::Ghost<sc::EventPtr> NasalEvent;
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typedef nasal::Ghost<sc::CustomEventPtr> NasalCustomEvent;
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typedef nasal::Ghost<sc::DeviceEventPtr> NasalDeviceEvent;
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typedef nasal::Ghost<sc::KeyboardEventPtr> NasalKeyboardEvent;
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typedef nasal::Ghost<sc::MouseEventPtr> NasalMouseEvent;
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struct CustomEventDetailWrapper;
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typedef SGSharedPtr<CustomEventDetailWrapper> CustomEventDetailPtr;
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typedef nasal::Ghost<CustomEventDetailPtr> NasalCustomEventDetail;
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typedef nasal::Ghost<simgear::PropertyBasedElementPtr> NasalPropertyBasedElement;
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typedef nasal::Ghost<sc::CanvasPtr> NasalCanvas;
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typedef nasal::Ghost<sc::ElementPtr> NasalElement;
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typedef nasal::Ghost<sc::GroupPtr> NasalGroup;
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typedef nasal::Ghost<sc::TextPtr> NasalText;
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typedef nasal::Ghost<sc::LayoutItemRef> NasalLayoutItem;
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typedef nasal::Ghost<sc::LayoutRef> NasalLayout;
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typedef nasal::Ghost<sc::BoxLayoutRef> NasalBoxLayout;
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typedef nasal::Ghost<sc::WindowPtr> NasalWindow;
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naRef to_nasal_helper(naContext c, const osg::BoundingBox& bb)
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{
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std::vector<float> bb_vec(4);
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bb_vec[0] = bb._min.x();
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bb_vec[1] = bb._min.y();
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bb_vec[2] = bb._max.x();
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bb_vec[3] = bb._max.y();
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return nasal::to_nasal(c, bb_vec);
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}
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SGPropertyNode* from_nasal_helper(naContext c, naRef ref, SGPropertyNode**)
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{
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SGPropertyNode* props = ghostToPropNode(ref);
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if( !props )
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naRuntimeError(c, "Not a SGPropertyNode ghost.");
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return props;
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}
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CanvasMgr& requireCanvasMgr(naContext c)
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{
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CanvasMgr* canvas_mgr =
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static_cast<CanvasMgr*>(globals->get_subsystem("Canvas"));
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if( !canvas_mgr )
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naRuntimeError(c, "Failed to get Canvas subsystem");
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return *canvas_mgr;
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}
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GUIMgr& requireGUIMgr(naContext c)
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{
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GUIMgr* mgr =
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static_cast<GUIMgr*>(globals->get_subsystem("CanvasGUI"));
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if( !mgr )
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naRuntimeError(c, "Failed to get CanvasGUI subsystem");
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return *mgr;
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}
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/**
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* Create new Canvas and get ghost for it.
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*/
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static naRef f_createCanvas(const nasal::CallContext& ctx)
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{
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return ctx.to_nasal(requireCanvasMgr(ctx.c).createCanvas());
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}
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/**
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* Create new Window and get ghost for it.
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*/
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static naRef f_createWindow(const nasal::CallContext& ctx)
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{
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return nasal::to_nasal<sc::WindowWeakPtr>
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(
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ctx.c,
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requireGUIMgr(ctx.c).createWindow( ctx.getArg<std::string>(0) )
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);
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}
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/**
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* Get ghost for existing Canvas.
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*/
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static naRef f_getCanvas(const nasal::CallContext& ctx)
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{
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SGPropertyNode& props = *ctx.requireArg<SGPropertyNode*>(0);
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CanvasMgr& canvas_mgr = requireCanvasMgr(ctx.c);
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sc::CanvasPtr canvas;
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if( canvas_mgr.getPropertyRoot() == props.getParent() )
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{
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// get a canvas specified by its root node
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canvas = canvas_mgr.getCanvas( props.getIndex() );
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if( !canvas || canvas->getProps() != &props )
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return naNil();
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}
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else
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{
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// get a canvas by name
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if( props.hasValue("name") )
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canvas = canvas_mgr.getCanvas( props.getStringValue("name") );
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else if( props.hasValue("index") )
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canvas = canvas_mgr.getCanvas( props.getIntValue("index") );
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}
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return ctx.to_nasal(canvas);
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}
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naRef f_canvasCreateGroup(sc::Canvas& canvas, const nasal::CallContext& ctx)
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{
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return ctx.to_nasal( canvas.createGroup(ctx.getArg<std::string>(0)) );
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}
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/**
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* Get group containing all gui windows
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*/
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naRef f_getDesktop(naContext c, naRef me, int argc, naRef* args)
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{
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return nasal::to_nasal(c, requireGUIMgr(c).getDesktop());
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}
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naRef f_setInputFocus(const nasal::CallContext& ctx)
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{
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requireGUIMgr(ctx.c).setInputFocus(ctx.requireArg<sc::WindowPtr>(0));
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return naNil();
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}
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naRef f_grabPointer(const nasal::CallContext& ctx)
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{
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return ctx.to_nasal(
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requireGUIMgr(ctx.c).grabPointer(ctx.requireArg<sc::WindowPtr>(0))
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);
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}
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naRef f_ungrabPointer(const nasal::CallContext& ctx)
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{
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requireGUIMgr(ctx.c).ungrabPointer(ctx.requireArg<sc::WindowPtr>(0));
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return naNil();
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}
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static naRef f_groupCreateChild(sc::Group& group, const nasal::CallContext& ctx)
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{
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return ctx.to_nasal( group.createChild( ctx.requireArg<std::string>(0),
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ctx.getArg<std::string>(1) ) );
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}
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static sc::ElementPtr f_groupGetChild(sc::Group& group, SGPropertyNode* node)
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{
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return group.getChild(node);
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}
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static void propElementSetData( simgear::PropertyBasedElement& el,
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const std::string& name,
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naContext c,
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naRef ref )
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{
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if( naIsNil(ref) )
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return el.removeDataProp(name);
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std::string val = nasal::from_nasal<std::string>(c, ref);
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char* end = NULL;
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long val_long = strtol(val.c_str(), &end, 10);
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if( !*end )
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return el.setDataProp(name, val_long);
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double val_double = strtod(val.c_str(), &end);
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if( !*end )
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return el.setDataProp(name, val_double);
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el.setDataProp(name, val);
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}
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/**
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* Accessor for HTML5 data properties.
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*
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* # set single property:
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* el.data("myKey", 5);
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*
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* # set multiple properties
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* el.data({myProp1: 12, myProp2: "test"});
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*
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* # get value of properties
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* el.data("myKey"); # 5
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* el.data("myProp2"); # "test"
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*
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* # remove a single property
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* el.data("myKey", nil);
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*
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* # remove multiple properties
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* el.data({myProp1: nil, myProp2: nil});
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*
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* # set and remove multiple properties
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* el.data({newProp: "some text...", removeProp: nil});
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*
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*
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* @see http://api.jquery.com/data/
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*/
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static naRef f_propElementData( simgear::PropertyBasedElement& el,
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const nasal::CallContext& ctx )
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{
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if( ctx.isHash(0) )
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{
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// Add/delete properties given as hash
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nasal::Hash obj = ctx.requireArg<nasal::Hash>(0);
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for(nasal::Hash::iterator it = obj.begin(); it != obj.end(); ++it)
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propElementSetData(el, it->getKey(), ctx.c, it->getValue<naRef>());
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return ctx.to_nasal(&el);
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}
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std::string name = ctx.getArg<std::string>(0);
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if( !name.empty() )
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{
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if( ctx.argc == 1 )
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{
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// name + additional argument -> add/delete property
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SGPropertyNode* node = el.getDataProp<SGPropertyNode*>(name);
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if( !node )
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return naNil();
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return ctx.to_nasal( node->getStringValue() );
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}
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else
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{
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// only name -> get property
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propElementSetData(el, name, ctx.c, ctx.requireArg<naRef>(1));
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return ctx.to_nasal(&el);
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}
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}
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return naNil();
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}
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static naRef f_createCustomEvent(const nasal::CallContext& ctx)
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{
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std::string const& type = ctx.requireArg<std::string>(0);
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if( type.empty() )
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return naNil();
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bool bubbles = false;
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simgear::StringMap detail;
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if( ctx.isHash(1) )
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{
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nasal::Hash const& cfg = ctx.requireArg<nasal::Hash>(1);
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naRef na_detail = cfg.get("detail");
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if( naIsHash(na_detail) )
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detail = ctx.from_nasal<simgear::StringMap>(na_detail);
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bubbles = cfg.get<bool>("bubbles");
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}
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return ctx.to_nasal(
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sc::CustomEventPtr(new sc::CustomEvent(type, bubbles, detail))
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);
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}
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struct CustomEventDetailWrapper:
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public SGReferenced
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{
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sc::CustomEventPtr _event;
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CustomEventDetailWrapper(const sc::CustomEventPtr& event):
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_event(event)
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{
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}
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bool _get( const std::string& key,
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std::string& value_out ) const
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{
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if( !_event )
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return false;
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simgear::StringMap::const_iterator it = _event->detail.find(key);
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if( it == _event->detail.end() )
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return false;
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value_out = it->second;
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return true;
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}
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bool _set( const std::string& key,
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const std::string& value )
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{
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if( !_event )
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return false;
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_event->detail[ key ] = value;
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return true;
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}
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};
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static naRef f_customEventGetDetail( sc::CustomEvent& event,
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naContext c )
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{
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return nasal::to_nasal(
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c,
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CustomEventDetailPtr(new CustomEventDetailWrapper(&event))
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);
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}
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static naRef f_boxLayoutAddItem( sc::BoxLayout& box,
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const nasal::CallContext& ctx )
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{
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box.addItem( ctx.requireArg<sc::LayoutItemRef>(0),
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ctx.getArg<int>(1),
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ctx.getArg<int>(2, sc::AlignFill) );
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return naNil();
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}
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static naRef f_boxLayoutInsertItem( sc::BoxLayout& box,
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const nasal::CallContext& ctx )
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{
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box.insertItem( ctx.requireArg<int>(0),
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ctx.requireArg<sc::LayoutItemRef>(1),
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ctx.getArg<int>(2),
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ctx.getArg<int>(3, sc::AlignFill) );
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return naNil();
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}
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static naRef f_boxLayoutAddStretch( sc::BoxLayout& box,
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const nasal::CallContext& ctx )
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{
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box.addStretch( ctx.getArg<int>(0) );
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return naNil();
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}
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static naRef f_boxLayoutInsertStretch( sc::BoxLayout& box,
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const nasal::CallContext& ctx )
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{
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box.insertStretch( ctx.requireArg<int>(0),
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ctx.getArg<int>(1) );
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return naNil();
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}
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template<class Type, class Base>
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static naRef f_newAsBase(const nasal::CallContext& ctx)
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{
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return ctx.to_nasal<Base*>(new Type());
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}
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naRef initNasalCanvas(naRef globals, naContext c)
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{
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nasal::Hash globals_module(globals, c),
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canvas_module = globals_module.createHash("canvas");
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nasal::Object::setupGhost();
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//----------------------------------------------------------------------------
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// Events
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using osgGA::GUIEventAdapter;
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NasalEvent::init("canvas.Event")
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.member("type", &sc::Event::getTypeString)
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.member("target", &sc::Event::getTarget)
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.member("currentTarget", &sc::Event::getCurrentTarget)
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.member("defaultPrevented", &sc::Event::defaultPrevented)
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.method("stopPropagation", &sc::Event::stopPropagation)
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.method("preventDefault", &sc::Event::preventDefault);
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NasalCustomEvent::init("canvas.CustomEvent")
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.bases<NasalEvent>()
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.member("detail", &f_customEventGetDetail, &sc::CustomEvent::setDetail);
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NasalCustomEventDetail::init("canvas.CustomEventDetail")
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._get(&CustomEventDetailWrapper::_get)
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._set(&CustomEventDetailWrapper::_set);
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canvas_module.createHash("CustomEvent")
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.set("new", &f_createCustomEvent);
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NasalDeviceEvent::init("canvas.DeviceEvent")
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.bases<NasalEvent>()
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.member("modifiers", &sc::DeviceEvent::getModifiers)
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.member("ctrlKey", &sc::DeviceEvent::ctrlKey)
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.member("shiftKey", &sc::DeviceEvent::shiftKey)
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.member("altKey", &sc::DeviceEvent::altKey)
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.member("metaKey", &sc::DeviceEvent::metaKey);
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NasalKeyboardEvent::init("canvas.KeyboardEvent")
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.bases<NasalDeviceEvent>()
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.member("key", &sc::KeyboardEvent::key)
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.member("location", &sc::KeyboardEvent::location)
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.member("repeat", &sc::KeyboardEvent::repeat)
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.member("charCode", &sc::KeyboardEvent::charCode)
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.member("keyCode", &sc::KeyboardEvent::keyCode);
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NasalMouseEvent::init("canvas.MouseEvent")
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.bases<NasalDeviceEvent>()
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.member("screenX", &sc::MouseEvent::getScreenX)
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.member("screenY", &sc::MouseEvent::getScreenY)
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.member("clientX", &sc::MouseEvent::getClientX)
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.member("clientY", &sc::MouseEvent::getClientY)
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.member("localX", &sc::MouseEvent::getLocalX)
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.member("localY", &sc::MouseEvent::getLocalY)
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.member("deltaX", &sc::MouseEvent::getDeltaX)
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.member("deltaY", &sc::MouseEvent::getDeltaY)
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.member("button", &sc::MouseEvent::getButton)
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.member("buttons", &sc::MouseEvent::getButtonMask)
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.member("click_count", &sc::MouseEvent::getCurrentClickCount);
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//----------------------------------------------------------------------------
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// Canvas & elements
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NasalPropertyBasedElement::init("PropertyBasedElement")
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.method("data", &f_propElementData);
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NasalCanvas::init("Canvas")
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.bases<NasalPropertyBasedElement>()
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.bases<nasal::ObjectRef>()
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.member("_node_ghost", &elementGetNode<sc::Canvas>)
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.member("size_x", &sc::Canvas::getSizeX)
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.member("size_y", &sc::Canvas::getSizeY)
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.method("_createGroup", &f_canvasCreateGroup)
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.method("_getGroup", &sc::Canvas::getGroup)
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.method( "addEventListener",
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static_cast<bool (sc::Canvas::*)( const std::string&,
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const sc::EventListener& )>
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(&sc::Canvas::addEventListener) )
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.method("dispatchEvent", &sc::Canvas::dispatchEvent)
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.method("setLayout", &sc::Canvas::setLayout)
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.method("setFocusElement", &sc::Canvas::setFocusElement)
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.method("clearFocusElement", &sc::Canvas::clearFocusElement);
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canvas_module.set("_newCanvasGhost", f_createCanvas);
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canvas_module.set("_getCanvasGhost", f_getCanvas);
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NasalElement::init("canvas.Element")
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.bases<NasalPropertyBasedElement>()
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.member("_node_ghost", &elementGetNode<sc::Element>)
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.method("_getParent", &sc::Element::getParent)
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.method("_getCanvas", &sc::Element::getCanvas)
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.method("addEventListener", &sc::Element::addEventListener)
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.method("setFocus", &sc::Element::setFocus)
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.method("dispatchEvent", &sc::Element::dispatchEvent)
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.method("getBoundingBox", &sc::Element::getBoundingBox)
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.method("getTightBoundingBox", &sc::Element::getTightBoundingBox);
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NasalGroup::init("canvas.Group")
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.bases<NasalElement>()
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.method("_createChild", &f_groupCreateChild)
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.method( "_getChild", &f_groupGetChild)
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.method("_getElementById", &sc::Group::getElementById);
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NasalText::init("canvas.Text")
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.bases<NasalElement>()
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.method("heightForWidth", &sc::Text::heightForWidth)
|
|
.method("maxWidth", &sc::Text::maxWidth)
|
|
.method("lineCount", &sc::Text::lineCount)
|
|
.method("lineLength", &sc::Text::lineLength)
|
|
.method("getNearestCursor", &sc::Text::getNearestCursor)
|
|
.method("getCursorPos", &sc::Text::getCursorPos);
|
|
|
|
//----------------------------------------------------------------------------
|
|
// Layouting
|
|
|
|
#define ALIGN_ENUM_MAPPING(key, val, comment) canvas_module.set(#key, sc::key);
|
|
# include <simgear/canvas/layout/AlignFlag_values.hxx>
|
|
#undef ALIGN_ENUM_MAPPING
|
|
|
|
void (sc::LayoutItem::*f_layoutItemSetContentsMargins)(int, int, int, int)
|
|
= &sc::LayoutItem::setContentsMargins;
|
|
|
|
NasalLayoutItem::init("canvas.LayoutItem")
|
|
.method("getCanvas", &sc::LayoutItem::getCanvas)
|
|
.method("setCanvas", &sc::LayoutItem::setCanvas)
|
|
.method("getParent", &sc::LayoutItem::getParent)
|
|
.method("setParent", &sc::LayoutItem::setParent)
|
|
.method("setContentsMargins", f_layoutItemSetContentsMargins)
|
|
.method("setContentsMargin", &sc::LayoutItem::setContentsMargin)
|
|
.method("sizeHint", &sc::LayoutItem::sizeHint)
|
|
.method("minimumSize", &sc::LayoutItem::minimumSize)
|
|
.method("maximumSize", &sc::LayoutItem::maximumSize)
|
|
.method("hasHeightForWidth", &sc::LayoutItem::hasHeightForWidth)
|
|
.method("heightForWidth", &sc::LayoutItem::heightForWidth)
|
|
.method("minimumHeightForWidth", &sc::LayoutItem::minimumHeightForWidth)
|
|
.method("setAlignment", &sc::LayoutItem::setAlignment)
|
|
.method("alignment", &sc::LayoutItem::alignment)
|
|
.method("setVisible", &sc::LayoutItem::setVisible)
|
|
.method("isVisible", &sc::LayoutItem::isVisible)
|
|
.method("isExplicitlyHidden", &sc::LayoutItem::isExplicitlyHidden)
|
|
.method("show", &sc::LayoutItem::show)
|
|
.method("hide", &sc::LayoutItem::hide)
|
|
.method("setGeometry", &sc::LayoutItem::setGeometry)
|
|
.method("geometry", &sc::LayoutItem::geometry);
|
|
sc::NasalWidget::setupGhost(canvas_module);
|
|
|
|
NasalLayout::init("canvas.Layout")
|
|
.bases<NasalLayoutItem>()
|
|
.method("addItem", &sc::Layout::addItem)
|
|
.method("setSpacing", &sc::Layout::setSpacing)
|
|
.method("spacing", &sc::Layout::spacing)
|
|
.method("count", &sc::Layout::count)
|
|
.method("itemAt", &sc::Layout::itemAt)
|
|
.method("takeAt", &sc::Layout::takeAt)
|
|
.method("removeItem", &sc::Layout::removeItem)
|
|
.method("clear", &sc::Layout::clear);
|
|
|
|
NasalBoxLayout::init("canvas.BoxLayout")
|
|
.bases<NasalLayout>()
|
|
.method("addItem", &f_boxLayoutAddItem)
|
|
.method("addSpacing", &sc::BoxLayout::addSpacing)
|
|
.method("addStretch", &f_boxLayoutAddStretch)
|
|
.method("insertItem", &f_boxLayoutInsertItem)
|
|
.method("insertSpacing", &sc::BoxLayout::insertSpacing)
|
|
.method("insertStretch", &f_boxLayoutInsertStretch)
|
|
.method("setStretch", &sc::BoxLayout::setStretch)
|
|
.method("setStretchFactor", &sc::BoxLayout::setStretchFactor)
|
|
.method("stretch", &sc::BoxLayout::stretch);
|
|
|
|
canvas_module.createHash("HBoxLayout")
|
|
.set("new", &f_newAsBase<sc::HBoxLayout, sc::BoxLayout>);
|
|
canvas_module.createHash("VBoxLayout")
|
|
.set("new", &f_newAsBase<sc::VBoxLayout, sc::BoxLayout>);
|
|
|
|
//----------------------------------------------------------------------------
|
|
// Window
|
|
|
|
NasalWindow::init("canvas.Window")
|
|
.bases<NasalElement>()
|
|
.bases<NasalLayoutItem>()
|
|
.member("_node_ghost", &elementGetNode<sc::Window>)
|
|
.method("_getCanvasDecoration", &sc::Window::getCanvasDecoration)
|
|
.method("setLayout", &sc::Window::setLayout);
|
|
|
|
canvas_module.set("_newWindowGhost", f_createWindow);
|
|
canvas_module.set("_getDesktopGhost", f_getDesktop);
|
|
canvas_module.set("setInputFocus", f_setInputFocus);
|
|
canvas_module.set("grabPointer", f_grabPointer);
|
|
canvas_module.set("ungrabPointer", f_ungrabPointer);
|
|
|
|
return naNil();
|
|
}
|