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Diffstat (limited to 'languages/cpp/debugger/gdboutputwidget.cpp')
| -rw-r--r-- | languages/cpp/debugger/gdboutputwidget.cpp | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/languages/cpp/debugger/gdboutputwidget.cpp b/languages/cpp/debugger/gdboutputwidget.cpp new file mode 100644 index 00000000..817f8692 --- /dev/null +++ b/languages/cpp/debugger/gdboutputwidget.cpp @@ -0,0 +1,376 @@ +// ************************************************************************* +// gdboutputwidget.cpp - description +// ------------------- +// begin : 10th April 2003 +// copyright : (C) 2003 by John Birch +// email : jbb@kdevelop.org +// ************************************************************************** +// +// ************************************************************************** +// * * +// * 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. * +// * * +// ************************************************************************** + +#include "gdboutputwidget.h" +#include "dbgcontroller.h" + +#include <kcombobox.h> +#include <kdebug.h> +#include <kiconloader.h> +#include <klocale.h> +#include <kpopupmenu.h> + +#include <qlabel.h> +#include <qlayout.h> +#include <qtextedit.h> +#include <qtoolbutton.h> +#include <qtooltip.h> +#include <qapplication.h> +#include <qclipboard.h> +#include <qdom.h> + + +namespace GDBDebugger +{ + +/***************************************************************************/ + +GDBOutputWidget::GDBOutputWidget( QWidget *parent, const char *name) : + QWidget(parent, name), + m_userGDBCmdEditor(0), + m_Interrupt(0), + m_gdbView(0), + showInternalCommands_(false), + maxLines_(5000) +{ + + m_gdbView = new OutputText(this); + m_gdbView->setTextFormat(QTextEdit::LogText); + + QBoxLayout *userGDBCmdEntry = new QHBoxLayout(); + m_userGDBCmdEditor = new KHistoryCombo (this, "gdb-user-cmd-editor"); + + QLabel *label = new QLabel(i18n("&GDB cmd:"), this); + label->setBuddy(m_userGDBCmdEditor); + userGDBCmdEntry->addWidget(label); + + userGDBCmdEntry->addWidget(m_userGDBCmdEditor); + userGDBCmdEntry->setStretchFactor(m_userGDBCmdEditor, 1); + + m_Interrupt = new QToolButton( this, "add breakpoint" ); + m_Interrupt->setSizePolicy ( QSizePolicy ( (QSizePolicy::SizeType)0, + ( QSizePolicy::SizeType)0, + 0, + 0, + m_Interrupt->sizePolicy().hasHeightForWidth()) + ); + m_Interrupt->setPixmap ( SmallIcon ( "player_pause" ) ); + userGDBCmdEntry->addWidget(m_Interrupt); + QToolTip::add ( m_Interrupt, i18n ( "Pause execution of the app to enter gdb commands" ) ); + + QVBoxLayout *topLayout = new QVBoxLayout(this, 2); + topLayout->addWidget(m_gdbView, 10); + topLayout->addLayout(userGDBCmdEntry); + + slotDbgStatus( "", s_dbgNotStarted); + + connect( m_userGDBCmdEditor, SIGNAL(returnPressed()), SLOT(slotGDBCmd()) ); + connect( m_Interrupt, SIGNAL(clicked()), SIGNAL(breakInto())); + + connect( &updateTimer_, SIGNAL(timeout()), + this, SLOT(flushPending())); +} + +/***************************************************************************/ + +GDBOutputWidget::~GDBOutputWidget() +{ + delete m_gdbView; + delete m_userGDBCmdEditor; +} + +/***************************************************************************/ + +void GDBOutputWidget::clear() +{ + if (m_gdbView) + m_gdbView->clear(); + + userCommands_.clear(); + allCommands_.clear(); +} + +/***************************************************************************/ + +void GDBOutputWidget::slotInternalCommandStdout(const char* line) +{ + newStdoutLine(line, true); +} + +void GDBOutputWidget::slotUserCommandStdout(const char* line) +{ + newStdoutLine(line, false); +} + +namespace { + QString colorify(QString text, const QString& color) + { + // Make sure the newline is at the end of the newly-added + // string. This is so that we can always correctly remove + // newline inside 'flushPending'. + Q_ASSERT(text.endsWith("\n")); + if (text.endsWith("\n")) + { + text.remove(text.length()-1, 1); + } + text = "<font color=\"" + color + "\">" + text + "</font>\n"; + return text; + } +} + + +void GDBOutputWidget::newStdoutLine(const QString& line, + bool internal) +{ + QString s = html_escape(line); + if (s.startsWith("(gdb)")) + { + s = colorify(s, "blue"); + } + + allCommands_.append(s); + allCommandsRaw_.append(line); + trimList(allCommands_, maxLines_); + trimList(allCommandsRaw_, maxLines_); + + if (!internal) + { + userCommands_.append(s); + userCommandsRaw_.append(line); + trimList(userCommands_, maxLines_); + trimList(userCommandsRaw_, maxLines_); + } + + if (!internal || showInternalCommands_) + showLine(s); +} + + +void GDBOutputWidget::showLine(const QString& line) +{ + pendingOutput_ += line; + + // To improve performance, we update the view after some delay. + if (!updateTimer_.isActive()) + { + updateTimer_.start(100, true /* single shot */); + } +} + +void GDBOutputWidget::trimList(QStringList& l, unsigned max_size) +{ + unsigned int length = l.count(); + if (length > max_size) + { + for(int to_delete = length - max_size; to_delete; --to_delete) + { + l.erase(l.begin()); + } + } +} + +void GDBOutputWidget::setShowInternalCommands(bool show) +{ + if (show != showInternalCommands_) + { + showInternalCommands_ = show; + + // Set of strings to show changes, text edit still has old + // set. Refresh. + m_gdbView->clear(); + QStringList& newList = + showInternalCommands_ ? allCommands_ : userCommands_; + + QStringList::iterator i = newList.begin(), e = newList.end(); + for(; i != e; ++i) + { + // Note that color formatting is already applied to '*i'. + showLine(*i); + } + } +} + +/***************************************************************************/ + +void GDBOutputWidget::slotReceivedStderr(const char* line) +{ + QString colored = colorify(html_escape(line), "red"); + // Errors are shown inside user commands too. + allCommands_.append(colored); + trimList(allCommands_, maxLines_); + userCommands_.append(colored); + trimList(userCommands_, maxLines_); + + allCommandsRaw_.append(line); + trimList(allCommandsRaw_, maxLines_); + userCommandsRaw_.append(line); + trimList(userCommandsRaw_, maxLines_); + + showLine(colored); +} + +/***************************************************************************/ + +void GDBOutputWidget::slotGDBCmd() +{ + QString GDBCmd(m_userGDBCmdEditor->currentText()); + if (!GDBCmd.isEmpty()) + { + m_userGDBCmdEditor->addToHistory(GDBCmd); + m_userGDBCmdEditor->clearEdit(); + emit userGDBCmd(GDBCmd); + } +} + +void GDBOutputWidget::flushPending() +{ + m_gdbView->setUpdatesEnabled(false); + + // QTextEdit adds newline after paragraph automatically. + // So, remove trailing newline to avoid double newlines. + if (pendingOutput_.endsWith("\n")) + pendingOutput_.remove(pendingOutput_.length()-1, 1); + Q_ASSERT(!pendingOutput_.endsWith("\n")); + + m_gdbView->append(pendingOutput_); + pendingOutput_ = ""; + + m_gdbView->scrollToBottom(); + m_gdbView->setUpdatesEnabled(true); + m_gdbView->update(); + m_userGDBCmdEditor->setFocus(); +} + +/***************************************************************************/ + +void GDBOutputWidget::slotDbgStatus(const QString &, int statusFlag) +{ + if (statusFlag & s_dbgNotStarted) + { + m_Interrupt->setEnabled(false); + m_userGDBCmdEditor->setEnabled(false); + return; + } + else + { + m_Interrupt->setEnabled(true); + } + + if (statusFlag & s_dbgBusy) + { + m_userGDBCmdEditor->setEnabled(false); + } + else + { + m_userGDBCmdEditor->setEnabled(true); + } +} + +/***************************************************************************/ + +void GDBOutputWidget::focusInEvent(QFocusEvent */*e*/) +{ + m_gdbView->scrollToBottom(); + m_userGDBCmdEditor->setFocus(); +} + +QString GDBOutputWidget::html_escape(const QString& s) +{ + QString r(s); + r.replace("<", "<"); + r.replace(">", ">"); + return r; +} + +void GDBOutputWidget::savePartialProjectSession(QDomElement* el) +{ + QDomDocument doc = el->ownerDocument(); + + QDomElement showInternal = doc.createElement("showInternalCommands"); + showInternal.setAttribute("value", QString::number(showInternalCommands_)); + + el->appendChild(showInternal); +} + +void GDBOutputWidget::restorePartialProjectSession(const QDomElement* el) +{ + QDomElement showInternal = + el->namedItem("showInternalCommands").toElement(); + + if (!showInternal.isNull()) + { + showInternalCommands_ = showInternal.attribute("value", "0").toInt(); + } +} + + +//void OutputText::contextMenuEvent(QContextMenuEvent* e) +QPopupMenu* OutputText::createPopupMenu(const QPoint&) +{ + KPopupMenu* popup = new KPopupMenu; + + int id = popup->insertItem(i18n("Show Internal Commands"), + this, + SLOT(toggleShowInternalCommands())); + + popup->setItemChecked(id, parent_->showInternalCommands_); + popup->setWhatsThis( + id, + i18n( + "Controls if commands issued internally by KDevelop " + "will be shown or not.<br>" + "This option will affect only future commands, it will not " + "add or remove already issued commands from the view.")); + + popup->insertItem(i18n("Copy All"), + this, + SLOT(copyAll())); + + + return popup; +} + +void OutputText::copyAll() +{ + /* See comments for allCommandRaw_ for explanations of + this complex logic, as opposed to calling text(). */ + QStringList& raw = parent_->showInternalCommands_ ? + parent_->allCommandsRaw_ : parent_->userCommandsRaw_; + QString text; + for (unsigned i = 0; i < raw.size(); ++i) + text += raw[i]; + + // Make sure the text is pastable both with Ctrl-C and with + // middle click. + QApplication::clipboard()->setText(text, QClipboard::Clipboard); + QApplication::clipboard()->setText(text, QClipboard::Selection); +} + +void OutputText::toggleShowInternalCommands() +{ + parent_->setShowInternalCommands(!parent_->showInternalCommands_); +} + + +/***************************************************************************/ +/***************************************************************************/ +/***************************************************************************/ +} + + +#include "gdboutputwidget.moc" + |