563 lines
13 KiB
C++
563 lines
13 KiB
C++
// new_gui.cxx: implementation of XML-configurable GUI support.
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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 "new_gui.hxx"
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#include <algorithm>
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#include <iostream>
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#include <cstring>
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#include <sys/types.h>
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#include <plib/pu.h>
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#include <simgear/compiler.h>
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#include <simgear/structure/exception.hxx>
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#include <simgear/props/props_io.hxx>
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#include <simgear/misc/sg_dir.hxx>
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#include <boost/algorithm/string/case_conv.hpp>
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#include <Main/fg_props.hxx>
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#include "menubar.hxx"
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#include "dialog.hxx"
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extern puFont FONT_HELVETICA_14;
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extern puFont FONT_SANS_12B;
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////////////////////////////////////////////////////////////////////////
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// Implementation of NewGUI.
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////////////////////////////////////////////////////////////////////////
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NewGUI::NewGUI ()
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: _menubar(new FGMenuBar),
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_active_dialog(0)
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{
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}
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NewGUI::~NewGUI ()
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{
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delete _menubar;
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_dialog_props.clear();
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for (_itt_t it = _colors.begin(); it != _colors.end(); ++it)
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delete it->second;
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}
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void
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NewGUI::init ()
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{
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setStyle();
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SGPath p(globals->get_fg_root(), "gui/dialogs");
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readDir(p);
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_menubar->init();
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}
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void
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NewGUI::reinit ()
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{
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reset(true);
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fgSetBool("/sim/signals/reinit-gui", true);
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}
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void
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NewGUI::redraw ()
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{
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reset(false);
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}
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void
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NewGUI::reset (bool reload)
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{
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map<string,FGDialog *>::iterator iter;
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vector<string> dlg;
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// close all open dialogs and remember them ...
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for (iter = _active_dialogs.begin(); iter != _active_dialogs.end(); ++iter)
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dlg.push_back(iter->first);
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unsigned int i;
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for (i = 0; i < dlg.size(); i++)
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closeDialog(dlg[i]);
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setStyle();
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unbind();
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delete _menubar;
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_menubar = new FGMenuBar;
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if (reload) {
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_dialog_props.clear();
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init();
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} else {
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_menubar->init();
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}
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bind();
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// open dialogs again
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for (i = 0; i < dlg.size(); i++)
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showDialog(dlg[i]);
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}
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void
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NewGUI::bind ()
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{
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fgTie("/sim/menubar/visibility", this,
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&NewGUI::getMenuBarVisible, &NewGUI::setMenuBarVisible);
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}
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void
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NewGUI::unbind ()
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{
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fgUntie("/sim/menubar/visibility");
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}
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void
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NewGUI::update (double delta_time_sec)
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{
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map<string,FGDialog *>::iterator iter = _active_dialogs.begin();
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for(/**/; iter != _active_dialogs.end(); iter++)
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iter->second->update();
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}
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bool
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NewGUI::showDialog (const string &name)
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{
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if (_dialog_props.find(name) == _dialog_props.end()) {
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SG_LOG(SG_GENERAL, SG_ALERT, "Dialog " << name << " not defined");
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return false;
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} else {
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if(!_active_dialogs[name])
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_active_dialogs[name] = new FGDialog(_dialog_props[name]);
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return true;
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}
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}
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bool
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NewGUI::closeActiveDialog ()
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{
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if (_active_dialog == 0)
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return false;
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// Kill any entries in _active_dialogs... Is there an STL
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// algorithm to do (delete map entries by value, not key)? I hate
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// the STL :) -Andy
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map<string,FGDialog *>::iterator iter = _active_dialogs.begin();
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for(/**/; iter != _active_dialogs.end(); iter++) {
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if(iter->second == _active_dialog) {
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_active_dialogs.erase(iter);
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// iter is no longer valid
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break;
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}
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}
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delete _active_dialog;
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_active_dialog = 0;
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return true;
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}
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bool
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NewGUI::closeDialog (const string& name)
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{
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if(_active_dialogs.find(name) != _active_dialogs.end()) {
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if(_active_dialog == _active_dialogs[name])
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_active_dialog = 0;
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delete _active_dialogs[name];
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_active_dialogs.erase(name);
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return true;
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}
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return false; // dialog wasn't open...
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}
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SGPropertyNode_ptr
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NewGUI::getDialogProperties (const string &name)
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{
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if(_dialog_props.find(name) != _dialog_props.end())
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return _dialog_props[name];
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SG_LOG(SG_GENERAL, SG_DEBUG, "dialog '" << name << "' missing");
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return 0;
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}
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FGDialog *
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NewGUI::getDialog (const string &name)
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{
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if(_active_dialogs.find(name) != _active_dialogs.end())
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return _active_dialogs[name];
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SG_LOG(SG_GENERAL, SG_DEBUG, "dialog '" << name << "' missing");
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return 0;
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}
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void
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NewGUI::setActiveDialog (FGDialog * dialog)
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{
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_active_dialog = dialog;
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}
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FGDialog *
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NewGUI::getActiveDialog ()
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{
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return _active_dialog;
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}
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FGMenuBar *
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NewGUI::getMenuBar ()
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{
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return _menubar;
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}
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bool
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NewGUI::getMenuBarVisible () const
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{
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return _menubar->isVisible();
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}
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void
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NewGUI::setMenuBarVisible (bool visible)
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{
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if (visible)
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_menubar->show();
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else
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_menubar->hide();
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}
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void
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NewGUI::newDialog (SGPropertyNode* props)
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{
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const char* cname = props->getStringValue("name");
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if(!cname) {
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SG_LOG(SG_GENERAL, SG_ALERT, "New dialog has no <name> property");
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return;
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}
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string name = cname;
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if(_active_dialogs.find(name) == _active_dialogs.end())
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_dialog_props[name] = props;
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}
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void
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NewGUI::readDir (const SGPath& path)
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{
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simgear::Dir dir(path);
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simgear::PathList xmls = dir.children(simgear::Dir::TYPE_FILE, ".xml");
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for (unsigned int i=0; i<xmls.size(); ++i) {
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SGPropertyNode * props = new SGPropertyNode;
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try {
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readProperties(xmls[i].str(), props);
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} catch (const sg_exception &) {
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SG_LOG(SG_INPUT, SG_ALERT, "Error parsing dialog "
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<< xmls[i].str());
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delete props;
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continue;
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}
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SGPropertyNode *nameprop = props->getNode("name");
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if (!nameprop) {
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SG_LOG(SG_INPUT, SG_WARN, "dialog " << xmls[i].str()
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<< " has no name; skipping.");
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delete props;
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continue;
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}
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string name = nameprop->getStringValue();
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_dialog_props[name] = props;
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}
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}
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////////////////////////////////////////////////////////////////////////
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// Style handling.
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////////////////////////////////////////////////////////////////////////
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void
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NewGUI::setStyle (void)
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{
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_itt_t it;
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for (it = _colors.begin(); it != _colors.end(); ++it)
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delete it->second;
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_colors.clear();
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// set up the traditional colors as default
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_colors["background"] = new FGColor(0.8f, 0.8f, 0.9f, 0.85f);
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_colors["foreground"] = new FGColor(0.0f, 0.0f, 0.0f, 1.0f);
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_colors["highlight"] = new FGColor(0.7f, 0.7f, 0.7f, 1.0f);
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_colors["label"] = new FGColor(0.0f, 0.0f, 0.0f, 1.0f);
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_colors["legend"] = new FGColor(0.0f, 0.0f, 0.0f, 1.0f);
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_colors["misc"] = new FGColor(0.0f, 0.0f, 0.0f, 1.0f);
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_colors["inputfield"] = new FGColor(0.8f, 0.7f, 0.7f, 1.0f);
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//puSetDefaultStyle();
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int which = fgGetInt("/sim/gui/current-style", 0);
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SGPropertyNode *sim = globals->get_props()->getNode("sim/gui", true);
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SGPropertyNode *n = sim->getChild("style", which);
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if (!n)
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n = sim->getChild("style", 0, true);
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setupFont(n->getNode("fonts/gui", true));
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n = n->getNode("colors", true);
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for (int i = 0; i < n->nChildren(); i++) {
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SGPropertyNode *child = n->getChild(i);
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_colors[child->getName()] = new FGColor(child);
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}
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FGColor *c = _colors["background"];
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puSetDefaultColourScheme(c->red(), c->green(), c->blue(), c->alpha());
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}
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void
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NewGUI::setupFont (SGPropertyNode *node)
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{
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_font = globals->get_fontcache()->get(node);
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puSetDefaultFonts(*_font, *_font);
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return;
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}
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////////////////////////////////////////////////////////////////////////
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// FGColor class.
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////////////////////////////////////////////////////////////////////////
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void
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FGColor::print() const {
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std::cerr << "red=" << _red << ", green=" << _green
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<< ", blue=" << _blue << ", alpha=" << _alpha << std::endl;
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}
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bool
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FGColor::merge(const SGPropertyNode *node)
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{
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if (!node)
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return false;
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bool dirty = false;
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const SGPropertyNode * n;
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if ((n = node->getNode("red")))
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_red = n->getFloatValue(), dirty = true;
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if ((n = node->getNode("green")))
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_green = n->getFloatValue(), dirty = true;
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if ((n = node->getNode("blue")))
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_blue = n->getFloatValue(), dirty = true;
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if ((n = node->getNode("alpha")))
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_alpha = n->getFloatValue(), dirty = true;
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return dirty;
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}
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bool
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FGColor::merge(const FGColor *color)
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{
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bool dirty = false;
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if (color && color->_red >= 0.0)
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_red = color->_red, dirty = true;
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if (color && color->_green >= 0.0)
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_green = color->_green, dirty = true;
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if (color && color->_blue >= 0.0)
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_blue = color->_blue, dirty = true;
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if (color && color->_alpha >= 0.0)
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_alpha = color->_alpha, dirty = true;
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return dirty;
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}
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////////////////////////////////////////////////////////////////////////
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// FGFontCache class.
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////////////////////////////////////////////////////////////////////////
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namespace
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{
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struct GuiFont
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{
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const char *name;
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puFont *font;
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struct Predicate
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: public std::unary_function<const GuiFont, bool>
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{
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Predicate(const char* name_) : name(name_) {}
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bool operator() (const GuiFont& f1) const
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{
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return std::strcmp(f1.name, name) == 0;
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}
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const char* name;
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};
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};
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const GuiFont guifonts[] = {
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{ "default", &FONT_HELVETICA_14 },
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{ "FIXED_8x13", &PUFONT_8_BY_13 },
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{ "FIXED_9x15", &PUFONT_9_BY_15 },
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{ "TIMES_10", &PUFONT_TIMES_ROMAN_10 },
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{ "TIMES_24", &PUFONT_TIMES_ROMAN_24 },
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{ "HELVETICA_10", &PUFONT_HELVETICA_10 },
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{ "HELVETICA_12", &PUFONT_HELVETICA_12 },
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{ "HELVETICA_14", &FONT_HELVETICA_14 },
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{ "HELVETICA_18", &PUFONT_HELVETICA_18 },
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{ "SANS_12B", &FONT_SANS_12B }
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};
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const GuiFont* guifontsEnd = &guifonts[sizeof(guifonts)/ sizeof(guifonts[0])];
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}
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FGFontCache::FGFontCache() :
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_initialized(false)
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{
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}
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FGFontCache::~FGFontCache()
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{
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PuFontMap::iterator it, end = _puFonts.end();
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for (it = _puFonts.begin(); it != end; ++it)
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delete it->second;
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}
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inline bool FGFontCache::FntParamsLess::operator()(const FntParams& f1,
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const FntParams& f2) const
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{
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int comp = f1.name.compare(f2.name);
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if (comp < 0)
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return true;
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else if (comp > 0)
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return false;
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if (f1.size < f2.size)
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return true;
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else if (f1.size > f2.size)
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return false;
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return f1.slant < f2.slant;
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}
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struct FGFontCache::fnt *
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FGFontCache::getfnt(const char *name, float size, float slant)
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{
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string fontName = boost::to_lower_copy(string(name));
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FntParams fntParams(fontName, size, slant);
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PuFontMap::iterator i = _puFonts.find(fntParams);
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if (i != _puFonts.end()) {
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// found in the puFonts map, all done
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return i->second;
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}
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// fntTexFont s are all preloaded into the _texFonts map
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TexFontMap::iterator texi = _texFonts.find(fontName);
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fntTexFont* texfont = NULL;
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puFont* pufont = NULL;
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if (texi != _texFonts.end()) {
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texfont = texi->second;
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} else {
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// check the built-in PUI fonts (in guifonts array)
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const GuiFont* guifont = std::find_if(&guifonts[0], guifontsEnd,
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GuiFont::Predicate(name));
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if (guifont != guifontsEnd) {
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pufont = guifont->font;
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}
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}
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fnt* f = new fnt;
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if (pufont) {
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f->pufont = pufont;
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} else if (texfont) {
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f->texfont = texfont;
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f->pufont = new puFont;
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f->pufont->initialize(static_cast<fntFont *>(f->texfont), size, slant);
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} else {
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f->pufont = guifonts[0].font;
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}
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_puFonts[fntParams] = f;
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return f;
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}
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puFont *
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FGFontCache::get(const char *name, float size, float slant)
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{
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return getfnt(name, size, slant)->pufont;
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}
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fntTexFont *
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FGFontCache::getTexFont(const char *name, float size, float slant)
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{
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return getfnt(name, size, slant)->texfont;
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}
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puFont *
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FGFontCache::get(SGPropertyNode *node)
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{
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if (!node)
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return get("Helvetica.txf", 15.0, 0.0);
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const char *name = node->getStringValue("name", "Helvetica.txf");
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float size = node->getFloatValue("size", 15.0);
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float slant = node->getFloatValue("slant", 0.0);
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return get(name, size, slant);
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}
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void FGFontCache::init()
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{
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if (_initialized) {
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return;
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}
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char *envp = ::getenv("FG_FONTS");
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if (envp != NULL) {
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_path.set(envp);
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} else {
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_path.set(globals->get_fg_root());
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_path.append("Fonts");
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}
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_initialized = true;
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}
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SGPath
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FGFontCache::getfntpath(const char *name)
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{
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init();
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SGPath path(_path);
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if (name && std::string(name) != "") {
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path.append(name);
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if (path.exists())
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return path;
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}
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path = SGPath(_path);
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path.append("Helvetica.txf");
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SG_LOG(SG_GENERAL, SG_WARN, "Unknown font name '" << name << "', defaulting to Helvetica");
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return path;
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}
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bool FGFontCache::initializeFonts()
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{
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static string fontext("txf");
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init();
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ulDir* fontdir = ulOpenDir(_path.c_str());
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if (!fontdir)
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return false;
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const ulDirEnt *dirEntry;
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while ((dirEntry = ulReadDir(fontdir)) != 0) {
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SGPath path(_path);
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path.append(dirEntry->d_name);
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if (path.extension() == fontext) {
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fntTexFont* f = new fntTexFont;
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if (f->load((char *)path.c_str())) {
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// convert font names in the map to lowercase for matching
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string fontName = boost::to_lower_copy(string(dirEntry->d_name));
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_texFonts[fontName] = f;
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} else
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delete f;
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}
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}
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ulCloseDir(fontdir);
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return true;
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}
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// end of new_gui.cxx
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