rangeselectimpl.cpp

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/*
        Description: start-up dialog

        Author: Marco Costalba (C) 2005-2006

        Copyright: See COPYING file that comes with this distribution

*/
#include <qcombobox.h>
#include <qlineedit.h>
#include <qcheckbox.h>
#include <qsettings.h>
#include <qregexp.h>
#include "common.h"
#include "git.h"
#include "rangeselectimpl.h"

using namespace QGit;

RangeSelectImpl::RangeSelectImpl(QWidget* par, QString* r, const QStringList& tl,
                                 bool* q, Git* g) : RangeSelectBase(par, 0, true) {
        range = r;
        quit = q;
        git = g;
        *quit = true; // if user press ESC everything works as expected

        QStringList otl;
        orderTags(tl, otl);

        // check if top tag is current HEAD
        if (!otl.empty()) {
                const QString tagSha(git->getRefSha(otl.first(), Git::TAG, false));
                if (git->checkRef(tagSha, Git::CUR_BRANCH))
                        // in this case remove from list to avoid an empty view
                        otl.pop_front();
        }
        comboBoxTo->insertStringList(otl);
        comboBoxTo->insertItem("HEAD", 0);
        comboBoxFrom->insertStringList(otl);
        comboBoxFrom->setFocus();

        int f = flags();
        checkBoxDiffCache->setChecked(f & DIFF_INDEX_F);
        checkBoxShowAll->setChecked(f & ALL_BRANCHES_F);
        checkBoxShowWholeHistory->setChecked(f & WHOLE_HISTORY_F);
        checkBoxShowDialog->setChecked(f & RANGE_SELECT_F);
}

void RangeSelectImpl::orderTags(const QStringList& src, QStringList& dst) {
// we use an heuristic to list release candidates before corresponding
// releases as example v.2.6.18-rc4 before v.2.6.18

        // match a (dotted) number + something else + a number + EOL
        QRegExp re("[\\d\\.]+([^\\d\\.]+\\d+$)");

        // in ASCII the space ' ' (32) comes before '!' (33) and both
        // before the rest, we need this to correctly order a sequence like
        //
        //      [v1.5, v1.5-rc1, v1.5.1] --> [v1.5.1, v1.5, v1.5-rc1]

        const QString rcMark(" $$%%");   // an impossible to find string starting with a space
        const QString noRcMark("!$$%%"); // an impossible to find string starting with a '!'

        typedef QMap<QString, QString> OrderedMap;
        QRegExp verRE("([^\\d])(\\d{1,2})(?=[^\\d])");
        OrderedMap map;

        FOREACH_SL (it, src) {

                QString tmpStr(*it);

                if (re.search(tmpStr) != -1)
                        tmpStr.insert(re.pos(1), rcMark);
                else
                        tmpStr += noRcMark;

                // Normalize all numbers to 3 digits with leading zeros, so one-digit
                // version numbers are always smaller than two-digit version numbers
                //     [v1.10.3, v1.5.1, v1.7.2] --> [v.1.10.3, v1.7.2, v1.5.1]
                // QMap automatically sorts by keys, so we only have to iterate over it
                // and return the original strings (stored as the data() in the map)
                while (tmpStr.contains(verRE))
                        tmpStr.replace(verRE, "\\10\\2");

                map[tmpStr] = *it;
        }
        dst.clear();
        FOREACH (OrderedMap, it, map)
                dst.prepend(it.data());
}

void RangeSelectImpl::checkBoxDiffCache_toggled(bool b) {

        setFlag(DIFF_INDEX_F, b);
}

void RangeSelectImpl::checkBoxShowDialog_toggled(bool b) {

        setFlag(RANGE_SELECT_F, b);
}

void RangeSelectImpl::pushButtonOk_clicked() {

        *range = comboBoxFrom->currentText();
        if (!range->isEmpty())
                range->append("..");

        range->append(comboBoxTo->currentText());
        range->prepend(lineEditOptions->text() + " ");
        *range = range->stripWhiteSpace();
        *quit = false;
        close();
}

void RangeSelectImpl::checkBoxShowAll_toggled(bool b) {

        QString opt(lineEditOptions->text());
        opt.remove("--all");
        if (b)
                opt.append(" --all");

        lineEditOptions->setText(opt.stripWhiteSpace());
        setFlag(ALL_BRANCHES_F, b);
}

void RangeSelectImpl::checkBoxShowWholeHistory_toggled(bool b) {

        if (b) {
                fromBckUp = comboBoxFrom->currentText();
                toBckUp = comboBoxTo->currentText();
                comboBoxFrom->setCurrentText("");
                comboBoxTo->setCurrentText("HEAD");

        } else {
                comboBoxFrom->setCurrentText(fromBckUp);
                comboBoxTo->setCurrentText(toBckUp);
        }
        comboBoxFrom->setEnabled(!b);
        comboBoxTo->setEnabled(!b);
        setFlag(WHOLE_HISTORY_F, b);
}

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