1 | // |
2 | // configview.cpp |
3 | // |
4 | // Description: View for configuring the set of targets to be used with the debugger |
5 | // |
6 | // |
7 | // Copyright (c) 2010 Kåre Särs <kare.sars@iki.fi> |
8 | // |
9 | // This library is free software; you can redistribute it and/or |
10 | // modify it under the terms of the GNU Library General Public |
11 | // License version 2 as published by the Free Software Foundation. |
12 | // |
13 | // This library is distributed in the hope that it will be useful, |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | // Library General Public License for more details. |
17 | // |
18 | // You should have received a copy of the GNU Library General Public License |
19 | // along with this library; see the file COPYING.LIB. If not, write to |
20 | // the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | // Boston, MA 02110-1301, USA. |
22 | |
23 | #include "ioview.h" |
24 | #include "ioview.moc" |
25 | |
26 | #include <QtGui/QVBoxLayout> |
27 | #include <QtCore/QFile> |
28 | #include <QtGui/QTextEdit> |
29 | #include <QtGui/QLineEdit> |
30 | #include <QtGui/QScrollBar> |
31 | #include <QSocketNotifier> |
32 | |
33 | #include <kglobalsettings.h> |
34 | #include <kcolorscheme.h> |
35 | #include <kdebug.h> |
36 | #include <kstandarddirs.h> |
37 | #include <krandom.h> |
38 | |
39 | #include <sys/types.h> |
40 | #include <sys/stat.h> |
41 | #include <fcntl.h> |
42 | #include <unistd.h> |
43 | |
44 | IOView::IOView(QWidget *parent) |
45 | : QWidget(parent) |
46 | { |
47 | m_output = new QTextEdit(); |
48 | m_output->setReadOnly(true); |
49 | m_output->setUndoRedoEnabled(false); |
50 | m_output->setAcceptRichText(false); |
51 | // fixed wide font, like konsole |
52 | m_output->setFont(KGlobalSettings::fixedFont()); |
53 | // alternate color scheme, like konsole |
54 | KColorScheme schemeView(QPalette::Active, KColorScheme::View); |
55 | m_output->setTextBackgroundColor(schemeView.foreground().color()); |
56 | m_output->setTextColor(schemeView.background().color()); |
57 | QPalette p = m_output->palette (); |
58 | p.setColor(QPalette::Base, schemeView.foreground().color()); |
59 | m_output->setPalette(p); |
60 | |
61 | m_input = new QLineEdit(); |
62 | m_output->setFocusProxy(m_input); // take the focus from the output |
63 | |
64 | QVBoxLayout *layout = new QVBoxLayout(this); |
65 | layout->addWidget(m_output, 10); |
66 | layout->addWidget(m_input, 0); |
67 | layout->setContentsMargins(0,0,0,0); |
68 | layout->setSpacing(0); |
69 | |
70 | connect(m_input, SIGNAL(returnPressed()), this, SLOT(returnPressed())); |
71 | createFifos(); |
72 | } |
73 | |
74 | IOView::~IOView() |
75 | { |
76 | m_stdin.close(); |
77 | |
78 | m_stdout.close(); |
79 | m_stdout.setFileName(m_stdoutFifo); |
80 | ::close(m_stdoutFD); |
81 | |
82 | m_stderr.close(); |
83 | m_stderr.setFileName(m_stderrFifo); |
84 | ::close(m_stderrFD); |
85 | |
86 | m_stdin.remove(); |
87 | m_stdout.remove(); |
88 | m_stderr.remove(); |
89 | } |
90 | |
91 | void IOView::createFifos() |
92 | { |
93 | m_stdinFifo = createFifo("stdInFifo" ); |
94 | m_stdoutFifo = createFifo("stdOutFifo" ); |
95 | m_stderrFifo = createFifo("stdErrFifo" ); |
96 | |
97 | m_stdin.setFileName(m_stdinFifo); |
98 | if (!m_stdin.open(QIODevice::ReadWrite)) return; |
99 | |
100 | m_stdoutD.setFileName(m_stdoutFifo); |
101 | m_stdoutD.open(QIODevice::ReadWrite); |
102 | |
103 | m_stdout.setFileName(m_stdoutFifo); |
104 | m_stdoutFD = ::open(m_stdoutFifo.toLocal8Bit(), O_RDWR|O_NONBLOCK ); |
105 | if (m_stdoutFD == -1) return; |
106 | if (!m_stdout.open(m_stdoutFD, QIODevice::ReadWrite)) return; |
107 | |
108 | m_stdoutNotifier = new QSocketNotifier(m_stdoutFD, QSocketNotifier::Read, this); |
109 | connect(m_stdoutNotifier, SIGNAL(activated(int)), this, SLOT(readOutput())); |
110 | m_stdoutNotifier->setEnabled(true); |
111 | |
112 | |
113 | m_stderrD.setFileName(m_stderrFifo); |
114 | m_stderrD.open(QIODevice::ReadWrite); |
115 | |
116 | m_stderr.setFileName(m_stderrFifo); |
117 | m_stderrFD = ::open(m_stderrFifo.toLocal8Bit(), O_RDONLY|O_NONBLOCK ); |
118 | if (m_stderrFD == -1) return; |
119 | if (!m_stderr.open(m_stderrFD, QIODevice::ReadOnly)) return; |
120 | |
121 | m_stderrNotifier = new QSocketNotifier(m_stderrFD, QSocketNotifier::Read, this); |
122 | connect(m_stderrNotifier, SIGNAL(activated(int)), this, SLOT(readErrors())); |
123 | m_stderrNotifier->setEnabled(true); |
124 | |
125 | return; |
126 | } |
127 | |
128 | void IOView::returnPressed() |
129 | { |
130 | m_stdin.write(m_input->text().toLocal8Bit()); |
131 | m_stdin.write("\n" ); |
132 | m_stdin.flush(); |
133 | m_input->clear(); |
134 | } |
135 | |
136 | void IOView::readOutput() |
137 | { |
138 | m_stdoutNotifier->setEnabled(false); |
139 | qint64 res; |
140 | char chData[256]; |
141 | QByteArray data; |
142 | |
143 | do { |
144 | res = m_stdout.read(chData, 255); |
145 | if (res <= 0) { |
146 | m_stdoutD.flush(); |
147 | } |
148 | else { |
149 | data.append(chData, res); |
150 | } |
151 | |
152 | } while (res == 255); |
153 | |
154 | if (data.size() > 0) { |
155 | emit stdOutText(QString::fromLocal8Bit(data)); |
156 | } |
157 | m_stdoutNotifier->setEnabled(true); |
158 | } |
159 | |
160 | void IOView::readErrors() |
161 | { |
162 | m_stderrNotifier->setEnabled(false); |
163 | qint64 res; |
164 | char chData[256]; |
165 | QByteArray data; |
166 | |
167 | do { |
168 | res = m_stderr.read(chData, 255); |
169 | if (res <= 0) { |
170 | m_stderrD.flush(); |
171 | } |
172 | else { |
173 | data.append(chData, res); |
174 | } |
175 | } while (res == 255); |
176 | |
177 | if (data.size() > 0) { |
178 | emit stdErrText(QString::fromLocal8Bit(data)); |
179 | } |
180 | m_stderrNotifier->setEnabled(true); |
181 | } |
182 | |
183 | void IOView::addStdOutText(const QString &text) |
184 | { |
185 | QScrollBar *scrollb = m_output->verticalScrollBar(); |
186 | if (!scrollb) return; |
187 | bool atEnd = (scrollb->value() == scrollb->maximum()); |
188 | |
189 | QTextCursor cursor = m_output->textCursor(); |
190 | if (!cursor.atEnd()) cursor.movePosition(QTextCursor::End); |
191 | cursor.insertText(text); |
192 | |
193 | if (atEnd) { |
194 | scrollb->setValue(scrollb->maximum()); |
195 | } |
196 | } |
197 | |
198 | void IOView::addStdErrText(const QString &text) |
199 | { |
200 | m_output->setFontItalic(true); |
201 | addStdOutText(text); |
202 | m_output->setFontItalic(false); |
203 | } |
204 | |
205 | QString IOView::createFifo(const QString &prefix) |
206 | { |
207 | QString fifo = KStandardDirs::locateLocal("socket" , prefix + KRandom::randomString(3)); |
208 | int result = mkfifo(QFile::encodeName(fifo), 0666); |
209 | if (result != 0) return QString(); |
210 | return fifo; |
211 | } |
212 | |
213 | const QString IOView::stdinFifo() { return m_stdinFifo; } |
214 | const QString IOView::stdoutFifo() { return m_stdoutFifo; } |
215 | const QString IOView::stderrFifo() { return m_stderrFifo; } |
216 | |
217 | void IOView::enableInput(bool enable) { m_input->setEnabled(enable); } |
218 | |
219 | void IOView::clearOutput() { m_output->clear(); } |
220 | |