4 * Created on: 03.07.2012
12 #include "CanvasWidget.hxx"
14 #include <Canvas/canvas_mgr.hxx>
15 #include <Main/fg_os.hxx> // fgGetKeyModifiers()
16 #include <Scripting/NasalSys.hxx>
18 #include <simgear/canvas/Canvas.hxx>
19 #include <simgear/canvas/MouseEvent.hxx>
21 SGPropertyNode_ptr CanvasWidget::_time,
22 CanvasWidget::_view_height;
24 //------------------------------------------------------------------------------
25 CanvasWidget::CanvasWidget( int x, int y,
26 int width, int height,
27 SGPropertyNode* props,
28 const std::string& module ):
29 puObject(x, y, width, height),
30 _canvas_mgr( dynamic_cast<CanvasMgr*>(globals->get_subsystem("Canvas")) ),
36 SG_LOG(SG_GENERAL, SG_ALERT, "CanvasWidget: failed to get canvas manager!");
40 _canvas = _canvas_mgr->createCanvas
42 props->getStringValue("name", "gui-anonymous")
46 // Get canvas viewport size. If not specified use the widget dimensions
47 props->getIntValue("view[0]", width),
48 props->getIntValue("view[1]", height)
51 SGPropertyNode* cprops = _canvas->getProps();
52 cprops->setIntValue("size[0]", view[0] * 2); // use higher resolution
53 cprops->setIntValue("size[1]", view[1] * 2); // for antialias
54 cprops->setIntValue("view[0]", view[0]);
55 cprops->setIntValue("view[1]", view[1]);
56 cprops->setBoolValue("render-always", true);
57 cprops->setStringValue( "name",
58 props->getStringValue("name", "gui-anonymous") );
59 SGPropertyNode* input = cprops->getChild("input", 0, true);
60 _mouse_x = input->getChild("mouse-x", 0, true);
61 _mouse_y = input->getChild("mouse-y", 0, true);
62 _mouse_down = input->getChild("mouse-down", 0, true);
63 _mouse_drag = input->getChild("mouse-drag", 0, true);
65 SGPropertyNode *nasal = props->getNode("nasal");
69 FGNasalSys *nas = dynamic_cast<FGNasalSys*>(globals->get_subsystem("nasal"));
73 "CanvasWidget: Failed to get nasal subsystem!" );
75 const std::string file = std::string("__canvas:")
76 + cprops->getStringValue("name");
78 SGPropertyNode *load = nasal->getNode("load");
81 const char *s = load->getStringValue();
82 nas->handleCommand(module.c_str(), file.c_str(), s, cprops);
86 //------------------------------------------------------------------------------
87 CanvasWidget::~CanvasWidget()
90 // TODO check if really not in use anymore
93 ->removeChild( _canvas->getProps()->getName(),
94 _canvas->getProps()->getIndex(),
98 // Old versions of PUI are missing this defines...
99 #ifndef PU_SCROLL_UP_BUTTON
100 # define PU_SCROLL_UP_BUTTON 3
102 #ifndef PU_SCROLL_DOWN_BUTTON
103 # define PU_SCROLL_DOWN_BUTTON 4
106 //------------------------------------------------------------------------------
107 void CanvasWidget::doHit(int button, int updown, int x, int y)
109 puObject::doHit(button, updown, x, y);
111 // CTRL allows resizing and SHIFT allows moving the window
112 if( fgGetKeyModifiers() & (KEYMOD_CTRL | KEYMOD_SHIFT) )
115 namespace sc = simgear::canvas;
116 sc::MouseEventPtr event(new sc::MouseEvent);
119 _time = globals->get_props()->getNode("/sim/time/elapsed-sec");
120 event->time = _time->getDoubleValue();
123 _view_height = globals->get_props()->getNode("/sim/gui/canvas/size[1]");
124 event->screen_pos.set(x, _view_height->getIntValue() - y);
126 event->client_pos.set(x - abox.min[0], abox.max[1] - y);
127 event->delta.set( event->getScreenX() - _last_x,
128 event->getScreenY() - _last_y );
130 _last_x = event->getScreenX();
131 _last_y = event->getScreenY();
136 event->button = osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON;
138 case PU_MIDDLE_BUTTON:
139 event->button = osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON;
141 case PU_RIGHT_BUTTON:
142 event->button = osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON;
144 case PU_SCROLL_UP_BUTTON:
145 case PU_SCROLL_DOWN_BUTTON:
146 // Only let PU_DOWN trigger a scroll wheel event
147 if( updown != PU_DOWN )
150 event->type = sc::Event::WHEEL;
151 event->delta.y() = button == PU_SCROLL_UP_BUTTON ? 1 : -1;
153 _canvas->handleMouseEvent(event);
157 SG_LOG(SG_INPUT, SG_WARN, "CanvasWidget: Unknown button: " << button);
164 event->type = sc::Event::MOUSE_DOWN;
165 puSetActiveWidget(this, x, y);
168 event->type = sc::Event::MOUSE_UP;
169 puDeactivateWidget();
172 event->type = sc::Event::DRAG;
175 SG_LOG(SG_INPUT, SG_WARN, "CanvasWidget: Unknown updown: " << updown);
179 _canvas->handleMouseEvent(event);
181 _mouse_x->setIntValue(x - abox.min[0]);
182 _mouse_y->setIntValue(abox.max[1] - y);
184 if( updown == PU_DRAG )
185 _mouse_drag->setIntValue(button);
186 else if( updown == PU_DOWN )
187 _mouse_down->setIntValue(button);
190 //------------------------------------------------------------------------------
191 int CanvasWidget::checkKey(int key, int updown)
193 return puObject::checkKey(key, updown);
196 //------------------------------------------------------------------------------
197 void CanvasWidget::setSize(int w, int h)
199 puObject::setSize(w, h);
201 _canvas->getProps()->setIntValue("view[0]", w);
202 _canvas->getProps()->setIntValue("view[1]", h);
205 //------------------------------------------------------------------------------
206 void CanvasWidget::draw(int dx, int dy)
208 glEnable(GL_TEXTURE_2D);
209 glBindTexture(GL_TEXTURE_2D, _canvas_mgr->getCanvasTexId(_canvas));
212 glTexCoord2f(0,0); glVertex2f(dx + abox.min[0], dy + abox.min[1]);
213 glTexCoord2f(1,0); glVertex2f(dx + abox.max[0], dy + abox.min[1]);
214 glTexCoord2f(1,1); glVertex2f(dx + abox.max[0], dy + abox.max[1]);
215 glTexCoord2f(0,1); glVertex2f(dx + abox.min[0], dy + abox.max[1]);
217 glDisable(GL_TEXTURE_2D);