add Configuration class for generic configuration data load/save-ing.

use Configuration class throughout code. no longer save rc file on exit, save when any options are changed.

1 files changed, 238 insertions, 0 deletions

diff --git a/src/Configuration.cc b/src/Configuration.cc
new file mode 100644
index 00000000..e88e4601
--- /dev/null
+++ b/src/Configuration.cc
@@ -0,0 +1,238 @@
+// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
+// Configuration.hh for Blackbox - an X11 Window manager
+// Copyright (c) 2002 - 2002 Ben Jansens (ben@orodu.net)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+#include "../config.h"
+
+#include "Configuration.hh"
+#include "Util.hh"
+
+#ifdef    HAVE_STDLIB_H
+#  include <stdlib.h>
+#endif // HAVE_STDLIB_H
+
+using std::string;
+
+bool Configuration::m_initialized = false;
+
+Configuration::Configuration(const string &file) {
+  setFile(file);
+  m_modified = false;
+  m_database = NULL;
+  m_autosave = true;
+  if (! m_initialized) {
+    XrmInitialize();
+    m_initialized = true;
+  }
+}
+
+Configuration::Configuration() {
+  m_modified = false;
+  m_database = NULL;
+  m_autosave = true;
+  if (! m_initialized) {
+    XrmInitialize();
+    m_initialized = true;
+  }
+}
+
+Configuration::~Configuration() {
+  if (m_database != NULL)
+    XrmDestroyDatabase(m_database);
+}
+
+void Configuration::setFile(const string &file) {
+  m_file = file;
+}
+
+void Configuration::setAutoSave(bool autosave) {
+  m_autosave = autosave;
+}
+
+void Configuration::save() {
+  assert(m_database != NULL);
+  XrmPutFileDatabase(m_database, m_file.c_str());
+  m_modified = false;
+}
+
+bool Configuration::load() {
+  if (m_database != NULL)
+    XrmDestroyDatabase(m_database);
+  m_modified = false;
+  if (NULL == (m_database = XrmGetFileDatabase(m_file.c_str())))
+    return false;
+  return true;
+}
+
+void Configuration::create() {
+  if (m_database != NULL)
+    XrmDestroyDatabase(m_database);
+  m_modified = false;
+  assert(NULL != (m_database = XrmGetStringDatabase("")));
+}
+
+void Configuration::setValue(const string &rname, bool value) {
+  assert(m_database != NULL);
+
+  const char *val = (value ? "True" : "False");
+  string rc_string = rname + ": " + val;
+  XrmPutLineResource(&m_database, rc_string.c_str());
+
+  m_modified = true;
+  if (m_autosave)
+    save();
+}
+
+void Configuration::setValue(const string &rname, unsigned long value) {
+  assert(m_database != NULL);
+  
+  string rc_string = rname + ": " + itostring(value);
+  XrmPutLineResource(&m_database, rc_string.c_str());
+
+  m_modified = true;
+  if (m_autosave)
+    save();
+}
+
+void Configuration::setValue(const string &rname, long value) {
+  assert(m_database != NULL);
+  
+  string rc_string = rname + ": " + itostring(value);
+  XrmPutLineResource(&m_database, rc_string.c_str());
+
+  m_modified = true;
+  if (m_autosave)
+    save();
+}
+
+void Configuration::setValue(const string &rname, const char *value) {
+  assert(m_database != NULL);
+  assert(value != NULL);
+  
+  string rc_string = rname + ": " + value;
+  XrmPutLineResource(&m_database, rc_string.c_str());
+
+  m_modified = true;
+  if (m_autosave)
+    save();
+}
+
+void Configuration::setValue(const string &rname, const string &value) {
+  assert(m_database != NULL);
+  
+  string rc_string = rname + ": " + value;
+  XrmPutLineResource(&m_database, rc_string.c_str());
+
+  m_modified = true;
+  if (m_autosave)
+    save();
+}
+
+bool Configuration::getValue(const string &rname, bool &value) const {
+  assert(m_database != NULL);
+  
+  string rclass = createClassName(rname);
+  
+  char *rettype;
+  XrmValue retvalue;
+  if (0 == XrmGetResource(m_database, rname.c_str(), rclass.c_str(), 
+                          &rettype, &retvalue) || retvalue.addr == NULL)
+    return false;
+  string val = retvalue.addr;
+  if (val == "true" || val == "True")
+    value = true;
+  else
+    value = false;
+  return true;
+}
+
+bool Configuration::getValue(const string &rname, long &value) const {
+  assert(m_database != NULL);
+  
+  string rclass = createClassName(rname);
+  
+  char *rettype;
+  XrmValue retvalue;
+  if (0 == XrmGetResource(m_database, rname.c_str(), rclass.c_str(), 
+                          &rettype, &retvalue) || retvalue.addr == NULL)
+    return false;
+  char *end;
+  value = strtol(retvalue.addr, &end, 10);
+  if (end == retvalue.addr)
+    return false;
+  return true;
+}
+
+bool Configuration::getValue(const string &rname, unsigned long &value) const {
+  assert(m_database != NULL);
+  
+  string rclass = createClassName(rname);
+  
+  char *rettype;
+  XrmValue retvalue;
+  if (0 == XrmGetResource(m_database, rname.c_str(), rclass.c_str(), 
+                          &rettype, &retvalue) || retvalue.addr == NULL)
+    return false;
+  char *end;
+  value = strtoul(retvalue.addr, &end, 10);
+  if (end == retvalue.addr)
+    return false;
+  return true;
+}
+
+bool Configuration::getValue(const string &rname,
+                             string &value) const {
+  assert(m_database != NULL);
+  
+  string rclass = createClassName(rname);
+  
+  char *rettype;
+  XrmValue retvalue;
+  if (0 == XrmGetResource(m_database, rname.c_str(), rclass.c_str(), 
+                          &rettype, &retvalue) || retvalue.addr == NULL)
+    return false;
+  value = retvalue.addr;
+  return true;
+}
+  
+
+string Configuration::createClassName(const string &rname) const {
+  string rclass(rname);
+
+  string::iterator it = rclass.begin(), end = rclass.end();
+  while (true) {
+    *it = toUpper(*it);
+    ++it;
+    if (it == end) break;
+    it = std::find(it, rclass.end(), '.');
+    if (it == end) break;
+    ++it;
+    if (it == end) break;
+  }
+  return rclass;
+}
+  
+
+char Configuration::toUpper(char c) const {
+  if (c >= 'a' && c <= 'z')
+    return c - 'a' + 'A';
+  return c;
+}