zoomedit: IdManager implementiert.

IdManager.cpp

@@ -0,0 +1,57 @@
+#include "IdManager.h"
+
+#include <sstream>
+
+
+bool IdManager::add(const std::string &id) {
+  if(!valid(id)) return false;
+  
+  return usedIds.insert(id).second;
+}
+
+bool IdManager::remove(const std::string &id) {
+  return (usedIds.erase(id) > 0);
+}
+
+bool IdManager::valid(const std::string &id) const {
+  if(id.empty()) return false;
+  if(id[0] >= '0' && id[0] <= '9') return false;
+  
+  for(std::string::const_iterator c = id.begin(); c != id.end(); c++) {
+    if(!(*c >= '0' && *c <= '9') && !(*c >= 'A' && *c <= 'Z') && !(*c >= 'a' && *c <= 'z')
+        && *c != '_' && *c != '-' && *c != '.')
+      return false;
+  }
+  
+  return true;
+}
+
+bool IdManager::unique(const std::string &id) const {
+  if(!valid(id)) return false;
+  
+  return (usedIds.find(id) == usedIds.end());
+}
+
+std::string IdManager::generate(const std::string &prefix) {
+  if(!valid(prefix)) return std::string();
+  
+  unsigned long n = 0;
+  
+  std::map<std::string, unsigned long>::iterator it = prefixMap.find(prefix);
+  if(it != prefixMap.end()) {
+    n = it->second + 1;
+    prefixMap.erase(it);
+  }
+  
+  std::ostringstream id;
+  
+  do {
+    id.str(std::string());
+    id << prefix << n++;
+  } while(!unique(id.str()));
+  
+  prefixMap.insert(std::make_pair<std::string, unsigned long>(prefix, n-1));
+  usedIds.insert(id.str());
+  
+  return id.str();
+}

IdManager.h

@@ -0,0 +1,24 @@
+#ifndef IDMANAGER_H_
+#define IDMANAGER_H_
+
+#include <string>
+#include <set>
+#include <map>
+
+
+class IdManager {
+  private:
+    std::set<std::string> usedIds;
+    std::map<std::string, unsigned long> prefixMap;
+    
+  public:
+    bool add(const std::string &id);
+    bool remove(const std::string &id);
+    
+    bool valid(const std::string &id) const;
+    bool unique(const std::string &id) const;
+    
+    std::string generate(const std::string &prefix);
+};
+
+#endif /*IDMANAGER_H_*/

Makefile.am

@@ -1,5 +1,6 @@
 bin_PROGRAMS  	     = zoomedit
 zoomedit_SOURCES     = zoomedit.cpp window.cpp ui.cpp draw.cpp edit.cpp Vertex.cpp \
-                       Line.cpp Polygon.cpp Rectangle.cpp Room.cpp Triangle.cpp
+                       Line.cpp Polygon.cpp Rectangle.cpp Room.cpp Triangle.cpp \
+                       IdManager.cpp
 zoomedit_CPPFLAGS    = @GTK_CFLAGS@ @GTKGLEXT_CFLAGS@
 zoomedit_LDADD       = @GTK_LIBS@ @GTKGLEXT_LIBS@

Makefile.in

@@ -53,7 +53,8 @@ am_zoomedit_OBJECTS = zoomedit-zoomedit.$(OBJEXT) \
 	zoomedit-draw.$(OBJEXT) zoomedit-edit.$(OBJEXT) \
 	zoomedit-Vertex.$(OBJEXT) zoomedit-Line.$(OBJEXT) \
 	zoomedit-Polygon.$(OBJEXT) zoomedit-Rectangle.$(OBJEXT) \
-	zoomedit-Room.$(OBJEXT) zoomedit-Triangle.$(OBJEXT)
+	zoomedit-Room.$(OBJEXT) zoomedit-Triangle.$(OBJEXT) \
+	zoomedit-IdManager.$(OBJEXT)
 zoomedit_OBJECTS = $(am_zoomedit_OBJECTS)
 zoomedit_DEPENDENCIES =
 DEFAULT_INCLUDES = -I.@am__isrc@
@@ -174,7 +175,8 @@ target_alias = @target_alias@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 zoomedit_SOURCES = zoomedit.cpp window.cpp ui.cpp draw.cpp edit.cpp Vertex.cpp \
-                       Line.cpp Polygon.cpp Rectangle.cpp Room.cpp Triangle.cpp
+                       Line.cpp Polygon.cpp Rectangle.cpp Room.cpp Triangle.cpp \
+                       IdManager.cpp
 
 zoomedit_CPPFLAGS = @GTK_CFLAGS@ @GTKGLEXT_CFLAGS@
 zoomedit_LDADD = @GTK_LIBS@ @GTKGLEXT_LIBS@
@@ -266,6 +268,7 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zoomedit-IdManager.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zoomedit-Line.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zoomedit-Polygon.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zoomedit-Rectangle.Po@am__quote@
@@ -446,6 +449,20 @@ zoomedit-Triangle.obj: Triangle.cpp
 @AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCXX_FALSE@	$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(zoomedit_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o zoomedit-Triangle.obj `if test -f 'Triangle.cpp'; then $(CYGPATH_W) 'Triangle.cpp'; else $(CYGPATH_W) '$(srcdir)/Triangle.cpp'; fi`
 
+zoomedit-IdManager.o: IdManager.cpp
+@am__fastdepCXX_TRUE@	$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(zoomedit_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT zoomedit-IdManager.o -MD -MP -MF $(DEPDIR)/zoomedit-IdManager.Tpo -c -o zoomedit-IdManager.o `test -f 'IdManager.cpp' || echo '$(srcdir)/'`IdManager.cpp
+@am__fastdepCXX_TRUE@	mv -f $(DEPDIR)/zoomedit-IdManager.Tpo $(DEPDIR)/zoomedit-IdManager.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	source='IdManager.cpp' object='zoomedit-IdManager.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(zoomedit_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o zoomedit-IdManager.o `test -f 'IdManager.cpp' || echo '$(srcdir)/'`IdManager.cpp
+
+zoomedit-IdManager.obj: IdManager.cpp
+@am__fastdepCXX_TRUE@	$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(zoomedit_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT zoomedit-IdManager.obj -MD -MP -MF $(DEPDIR)/zoomedit-IdManager.Tpo -c -o zoomedit-IdManager.obj `if test -f 'IdManager.cpp'; then $(CYGPATH_W) 'IdManager.cpp'; else $(CYGPATH_W) '$(srcdir)/IdManager.cpp'; fi`
+@am__fastdepCXX_TRUE@	mv -f $(DEPDIR)/zoomedit-IdManager.Tpo $(DEPDIR)/zoomedit-IdManager.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	source='IdManager.cpp' object='zoomedit-IdManager.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(zoomedit_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o zoomedit-IdManager.obj `if test -f 'IdManager.cpp'; then $(CYGPATH_W) 'IdManager.cpp'; else $(CYGPATH_W) '$(srcdir)/IdManager.cpp'; fi`
+
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \