4b47675441
the previous version of operator*() made no sense. E.g., it violated the invariant (*ptr).foo <=> ptr->foo. The dereferencing operator now returns a reference to the pointed-to object, rather than a pointer to it. I also added a bool conversion operator, which can be used in testing the NULL-ness of the pointer. Anyone wondering if that could be done in a simpler way is encouraged to read <http://www.artima.com/cppsource/safebool.html>. And, finally, I removed the mutable flag from the m_data member, since it does not need it.
91 lines
3.5 KiB
C++
91 lines
3.5 KiB
C++
// CommandDialog.cc for Fluxbox
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// Copyright (c) 2003 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org)
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// and Simon Bowden (rathnor at users.sourceforge.net)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#include "CommandDialog.hh"
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#include "FbTk/CommandParser.hh"
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#include "FbTk/StringUtil.hh"
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#include "FbTk/App.hh"
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#include <X11/Xutil.h>
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#include <algorithm>
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#include <memory>
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#include <stdexcept>
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#include <vector>
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using std::string;
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using std::vector;
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using std::auto_ptr;
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using std::less;
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using std::out_of_range;
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CommandDialog::CommandDialog(BScreen &screen, const string &title,
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const string precommand) :
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TextDialog(screen, title),
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m_precommand(precommand) { }
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void CommandDialog::exec(const std::string &text){
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// create Command<void> from line
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auto_ptr<FbTk::Command<void> > cmd(FbTk::CommandParser<void>::instance().parse(m_precommand + text));
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if (cmd.get())
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cmd->execute();
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// post execute
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if (m_postcommand != 0)
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m_postcommand->execute();
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}
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void CommandDialog::tabComplete() {
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try {
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string::size_type first = m_textbox.text().find_last_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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"0123456789", m_textbox.cursorPosition());
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if (first == string::npos)
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first = 0;
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string prefix = FbTk::StringUtil::toLower(m_textbox.text().substr(first,
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m_textbox.cursorPosition()));
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if (prefix.empty()) {
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XBell(FbTk::App::instance()->display(), 0);
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return;
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}
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FbTk::CommandParser<void>::CreatorMap::const_iterator it = FbTk::CommandParser<void>::instance().creatorMap().begin();
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const FbTk::CommandParser<void>::CreatorMap::const_iterator it_end = FbTk::CommandParser<void>::instance().creatorMap().end();
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vector<string> matches;
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for (; it != it_end; ++it) {
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if ((*it).first.find(prefix) == 0) {
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matches.push_back((*it).first);
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}
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}
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if (!matches.empty()) {
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// sort and apply larges match
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sort(matches.begin(), matches.end(), less<string>());
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m_textbox.setText(m_textbox.text() + matches[0].substr(prefix.size()));
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} else
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XBell(FbTk::App::instance()->display(), 0);
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} catch (out_of_range &oor) {
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XBell(FbTk::App::instance()->display(), 0);
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}
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}
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