diff src/filestates.cpp @ 370:b9c153e00e84

Move source files to src/

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/filestates.cpp	Thu Mar 24 10:27:51 2011 +0000
@@ -0,0 +1,221 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    EasyMercurial
+
+    Based on HgExplorer by Jari Korhonen
+    Copyright (c) 2010 Jari Korhonen
+    Copyright (c) 2011 Chris Cannam
+    Copyright (c) 2011 Queen Mary, University of London
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "filestates.h"
+
+#include "debug.h"
+
+#include <QMap>
+
+FileStates::FileStates()
+{
+}
+
+void FileStates::clearBuckets()
+{
+    m_clean.clear();
+    m_modified.clear();
+    m_added.clear();
+    m_removed.clear();
+    m_missing.clear();
+    m_inConflict.clear();
+    m_unknown.clear();
+    m_ignored.clear();
+}
+
+FileStates::State FileStates::charToState(QChar c, bool *ok)
+{
+    // Note that InConflict does not correspond to a stat char -- it's
+    // reported separately, by resolve --list, which shows U for
+    // Unresolved -- stat reports files in conflict as M, which means
+    // they will appear in more than one bin if we handle them
+    // naively.  'u' is also used by stat as the command option for
+    // Unknown, but the stat output uses ? for these so there's no
+    // ambiguity in parsing.
+
+    if (ok) *ok = true;
+    if (c == 'M') return Modified;
+    if (c == 'A') return Added;
+    if (c == 'R') return Removed;
+    if (c == '!') return Missing;
+    if (c == 'U') return InConflict;
+    if (c == '?') return Unknown;
+    if (c == 'C') return Clean;
+    if (c == 'I') return Ignored;
+    if (ok) *ok = false;
+    return Unknown;
+}
+
+QStringList *FileStates::stateToBucket(State s)
+{
+    switch (s) {
+    case Clean: return &m_clean;
+    case Modified: return &m_modified;
+    case Added: return &m_added;
+    case Unknown: return &m_unknown;
+    case Removed: return &m_removed;
+    case Missing: return &m_missing;
+    case InConflict: return &m_inConflict;
+    case Ignored: return &m_ignored;
+
+    default: return &m_clean;
+    }
+}
+
+void FileStates::parseStates(QString text)
+{
+    text.replace("\r\n", "\n");
+
+    clearBuckets();
+    m_stateMap.clear();
+
+    QStringList lines = text.split("\n", QString::SkipEmptyParts);
+
+    foreach (QString line, lines) {
+
+        if (line.length() < 3 || line[1] != ' ') {
+            continue;
+        }
+
+        QChar c = line[0];
+        bool ok = false;
+        State s = charToState(c, &ok);
+        if (!ok) continue;
+
+        QString file = line.right(line.length() - 2);
+        m_stateMap[file] = s;
+    }
+
+    foreach (QString file, m_stateMap.keys()) {
+        QStringList *bucket = stateToBucket(m_stateMap[file]);
+        if (bucket) bucket->push_back(file);
+    }
+
+    DEBUG << "FileStates: "
+          << m_modified.size() << " modified, " << m_added.size()
+          << " added, " << m_removed.size() << " removed, " << m_missing.size()
+          << " missing, " << m_inConflict.size() << " in conflict, "
+          << m_unknown.size() << " unknown" << endl;
+}
+
+QStringList FileStates::filesInState(State s) const
+{
+    QStringList *sl = const_cast<FileStates *>(this)->stateToBucket(s);
+    if (sl) return *sl;
+    else return QStringList();
+}
+
+bool FileStates::isInState(QString file, State s) const
+{
+    return filesInState(s).contains(file);
+}
+
+FileStates::State FileStates::stateOf(QString file) const
+{
+    if (m_stateMap.contains(file)) {
+        return m_stateMap[file];
+    }
+    DEBUG << "FileStates: WARNING: getStateOfFile: file "
+            << file << " is unknown to us: returning Unknown state, "
+            << "but unknown to us is not supposed to be the same "
+            << "thing as unknown state..."
+            << endl;
+    return Unknown;
+}
+
+FileStates::Activities FileStates::activitiesSupportedBy(State s)
+{
+    Activities a;
+
+    switch (s) {
+
+    case Modified:
+        a << Annotate << Diff << Commit << Revert << Rename << Copy << Remove;
+        break;
+
+    case Added:
+        a << Commit << Revert << Rename << Copy << Remove;
+        break;
+        
+    case Removed:
+        a << Commit << Revert << Add;
+        break;
+
+    case InConflict:
+        a << Annotate << Diff << RedoMerge << MarkResolved << Revert;
+        break;
+
+    case Missing:
+        a << Revert << Remove;
+        break;
+        
+    case Unknown:
+        a << Add << Ignore;
+        break;
+
+    case Clean:
+        a << Annotate << Rename << Copy << Remove;
+        break;
+
+    case Ignored:
+        a << UnIgnore;
+        break;
+    }
+
+    return a;
+}
+
+bool FileStates::supportsActivity(State s, Activity a)
+{
+    return activitiesSupportedBy(s).contains(a);
+}
+
+int FileStates::activityGroup(Activity a)
+{
+    switch (a) {
+    case Annotate: case Diff: return 0;
+    case Commit: case Revert: return 1;
+    case Rename: case Copy: return 2;
+    case Add: case Remove: return 3;
+    case RedoMerge: case MarkResolved: return 4;
+    case Ignore: case UnIgnore: return 5;
+    }
+    return 0;
+}
+
+bool FileStates::supportsActivity(QString file, Activity a) const
+{
+    return supportsActivity(stateOf(file), a);
+}
+
+QStringList FileStates::filesSupportingActivity(Activity a) const
+{
+    QStringList f;
+    for (int i = int(FirstState); i <= int(LastState); ++i) {
+        State s = (State)i;
+        if (supportsActivity(s, a)) {
+            f << filesInState(s);
+        }
+    }
+    return f;
+}
+
+FileStates::Activities FileStates::activitiesSupportedBy(QString file) const
+{
+    return activitiesSupportedBy(stateOf(file));
+}
+