init

lib/engine/rs_patternlist.cpp

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+/****************************************************************************
+**
+** This file is part of the LibreCAD project, a 2D CAD program
+**
+** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
+** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software 
+** Foundation and appearing in the file gpl-2.0.txt included in the
+** packaging of this file.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+**
+** This copyright notice MUST APPEAR in all copies of the script!  
+**
+**********************************************************************/
+
+#include<iostream>
+#include<QString>
+#include "rs_patternlist.h"
+
+#include "rs_system.h"
+#include "rs_pattern.h"
+#include "rs_debug.h"
+
+RS_PatternList* RS_PatternList::instance() {
+	static RS_PatternList instance;
+	return &instance;
+}
+
+
+RS_PatternList::~RS_PatternList() = default;
+
+/**
+ * Initializes the pattern list by creating empty RS_Pattern 
+ * objects, one for each pattern that could be found.
+ */
+void RS_PatternList::init() {
+    RS_DEBUG->print("RS_PatternList::initPatterns");
+
+	QStringList list = RS_SYSTEM->getPatternList();
+
+	patterns.clear();
+
+	for (auto const& s: list) {
+		RS_DEBUG->print("pattern: %s:", s.toLatin1().data());
+
+		QFileInfo fi(s);
+		QString const name = fi.baseName().toLower();
+		patterns[name] = std::unique_ptr<RS_Pattern>{};
+
+		RS_DEBUG->print("base: %s", name.toLatin1().data());
+    }
+}
+
+
+/**
+ * @return Pointer to the pattern with the given name or
+ * \p NULL if no such pattern was found. The pattern will be loaded into
+ * memory if it's not already.
+ */
+RS_Pattern* RS_PatternList::requestPattern(const QString& name) {
+    RS_DEBUG->print("RS_PatternList::requestPattern %s", name.toLatin1().data());
+
+    QString name2 = name.toLower();
+
+	RS_DEBUG->print("name2: %s", name2.toLatin1().data());
+	if (patterns.count(name2)) {
+		if (!patterns[name2]) {
+			RS_Pattern* p = new RS_Pattern(name2);
+			p->loadPattern();
+			patterns[name2].reset(p);
+		}
+		RS_DEBUG->print("name2: %s, size= %d", name2.toLatin1().data(),
+						patterns[name2]->countDeep());
+		return patterns[name2].get();
+	}
+
+	return nullptr;
+
+}
+
+	
+bool RS_PatternList::contains(const QString& name) const {
+
+	return patterns.count(name.toLower());
+
+}
+
+
+/**
+ * Dumps the patterns to stdout.
+ */
+std::ostream& operator << (std::ostream& os, RS_PatternList& l) {
+
+    os << "Patternlist: \n";
+	for (auto const& pa: l.patterns)
+		if (pa.second)
+			os<< *pa.second << '\n';
+
+    return os;
+}
+