// new_gui.cxx: implementation of XML-configurable GUI support. #include "new_gui.hxx" #include #include #include SG_USING_STD(vector); #include #include
//////////////////////////////////////////////////////////////////////// // Callbacks. //////////////////////////////////////////////////////////////////////// /** * Callback to update all property values. */ static void update_callback (puObject * object) { ((GUIWidget *)object->getUserData())->updateProperties(); } /** * Callback to close the dialog. */ static void close_callback (puObject * object) { delete ((GUIWidget *)object->getUserData()); } /** * Callback to apply the property value for every field. */ static void apply_callback (puObject * object) { ((GUIWidget *)object->getUserData())->applyProperties(); update_callback(object); } /** * Callback to apply the property values and close the dialog. */ static void close_apply_callback (puObject * object) { apply_callback(object); close_callback(object); } //////////////////////////////////////////////////////////////////////// // Implementation of GUIWidget. //////////////////////////////////////////////////////////////////////// GUIWidget::GUIWidget (SGPropertyNode_ptr props) : _object(0) { display(props); } GUIWidget::~GUIWidget () { delete _object; } void GUIWidget::display (SGPropertyNode_ptr props) { if (_object != 0) { SG_LOG(SG_GENERAL, SG_ALERT, "This widget is already active"); return; } _object = makeObject(props, 1024, 768); if (_object != 0) { _object->reveal(); } else { SG_LOG(SG_GENERAL, SG_ALERT, "Widget " << props->getStringValue("name", "[unnamed]") << " does not contain a proper GUI definition"); } } void GUIWidget::applyProperties () { for (int i = 0; i < _propertyObjects.size(); i++) { puObject * object = _propertyObjects[i].object; SGPropertyNode_ptr node = _propertyObjects[i].node; node->setStringValue(object->getStringValue()); } } void GUIWidget::updateProperties () { for (int i = 0; i < _propertyObjects.size(); i++) { puObject * object = _propertyObjects[i].object; SGPropertyNode_ptr node = _propertyObjects[i].node; object->setValue(node->getStringValue()); } } puObject * GUIWidget::makeObject (SGPropertyNode * props, int parentWidth, int parentHeight) { int width = props->getIntValue("width", parentWidth); int height = props->getIntValue("height", parentHeight); int x = props->getIntValue("x", (parentWidth - width) / 2); int y = props->getIntValue("y", (parentHeight - height) / 2); string type = props->getName(); if (type == "") type = props->getStringValue("type"); if (type == "") { SG_LOG(SG_GENERAL, SG_ALERT, "No type specified for GUI object"); return 0; } if (type == "dialog") { puPopup * dialog; if (props->getBoolValue("modal", false)) dialog = new puDialogBox(x, y); else dialog = new puPopup(x, y); setupGroup(dialog, props, width, height, true); return dialog; } else if (type == "group") { puGroup * group = new puGroup(x, y); setupGroup(group, props, width, height, false); return group; } else if (type == "input") { puInput * input = new puInput(x, y, x + width, y + height); setupObject(input, props); return input; } else if (type == "text") { puText * text = new puText(x, y); setupObject(text, props); return text; } else if (type == "button") { puButton * b; const char * legend = props->getStringValue("legend", "[none]"); if (props->getBoolValue("one-shot", true)) b = new puOneShot(x, y, legend); else b = new puButton(x, y, legend); setupObject(b, props); return b; } else { return 0; } } void GUIWidget::setupObject (puObject * object, SGPropertyNode * props) { object->setUserData(this); if (props->hasValue("legend")) object->setLegend(props->getStringValue("legend")); if (props->hasValue("label")) object->setLabel(props->getStringValue("label")); if (props->hasValue("default-value-prop")) { const char * name = props->getStringValue("default-value-prop"); SGPropertyNode_ptr node = fgGetNode(name, true); object->setValue(node->getStringValue()); _propertyObjects.push_back(PropertyObject(object, node)); } if (props->hasValue("action")) { string action = props->getStringValue("action"); if (action == "update") object->setCallback(update_callback); else if (action == "close") object->setCallback(close_callback); else if (action == "apply") object->setCallback(apply_callback); else if (action == "close-apply") object->setCallback(close_apply_callback); else SG_LOG(SG_GENERAL, SG_ALERT, "Unknown GUI action " + action); } object->makeReturnDefault(props->getBoolValue("default")); } void GUIWidget::setupGroup (puGroup * group, SGPropertyNode * props, int width, int height, bool makeFrame) { setupObject(group, props); if (makeFrame) new puFrame(0, 0, width, height); int nChildren = props->nChildren(); for (int i = 0; i < nChildren; i++) makeObject(props->getChild(i), width, height); group->close(); } GUIWidget::PropertyObject::PropertyObject (puObject * o, SGPropertyNode_ptr n) : object(o), node(n) { } //////////////////////////////////////////////////////////////////////// // Implementation of NewGUI. //////////////////////////////////////////////////////////////////////// NewGUI::NewGUI () { } NewGUI::~NewGUI () { } void NewGUI::init () { char path[1024]; ulMakePath(path, getenv("FG_ROOT"), "gui"); readDir(path); } void NewGUI::update (double delta_time_sec) { // NO OP } void NewGUI::display (const string &name) { if (_widgets.find(name) == _widgets.end()) SG_LOG(SG_GENERAL, SG_ALERT, "Dialog " << name << " not defined"); else new GUIWidget(_widgets[name]); // PUI will delete it } void NewGUI::readDir (const char * path) { ulDir * dir = ulOpenDir(path); if (dir == 0) { SG_LOG(SG_GENERAL, SG_ALERT, "Failed to read GUI files from " << path); return; } ulDirEnt * dirEnt = ulReadDir(dir); while (dirEnt != 0) { char subpath[1024]; ulMakePath(subpath, path, dirEnt->d_name); if (dirEnt->d_isdir && dirEnt->d_name[0] != '.') { readDir(subpath); } else { SGPropertyNode_ptr props = new SGPropertyNode; try { readProperties(subpath, props); } catch (const sg_exception &ex) { SG_LOG(SG_INPUT, SG_ALERT, "Error parsing GUI file " << subpath); } if (!props->hasValue("name")) { SG_LOG(SG_INPUT, SG_WARN, "GUI file " << subpath << " has no name; skipping."); } else { string name = props->getStringValue("name"); SG_LOG(SG_INPUT, SG_BULK, "Saving GUI node " << name); _widgets[name] = props; } } dirEnt = ulReadDir(dir); } ulCloseDir(dir); } // end of new_gui.cxx