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1 | #include "qpconsole.h" | |
2 | ||
3 | #include <QApplication> | |
4 | #include <QTextBlock> | |
5 | #include <QTextDocument> | |
6 | #include <QTextCursor> | |
7 | #include <QClipboard> | |
8 | - | #include "global.h" |
8 | + | |
9 | QPConsole::QPConsole(QWidget *parent) : | |
10 | QPlainTextEdit(parent), | |
11 | mHistoryPos(-1), | |
12 | mCommandLineReady(false) | |
13 | { | |
14 | QPalette p = palette(); | |
15 | p.setColor(QPalette::Active, QPalette::Base, Qt::black); | |
16 | p.setColor(QPalette::Inactive, QPalette::Base, Qt::black); | |
17 | p.setColor(QPalette::Active, QPalette::Text, Qt::white); | |
18 | p.setColor(QPalette::Inactive, QPalette::Text, Qt::white); | |
19 | setPalette(p); | |
20 | ||
21 | QFont f; | |
22 | #ifdef Q_OS_LINUX | |
23 | f.setFamily("Monospace"); | |
24 | f.setPointSize(10); | |
25 | #else | |
26 | f.setFamily("Lucida Console"); | |
27 | f.setPointSize(10); | |
28 | #endif | |
29 | f.setFixedPitch(true); | |
30 | setFont(f); | |
31 | ||
32 | setCursorWidth(QFontMetrics(font()).width(QChar('x'))); | |
33 | setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn); | |
34 | setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded); | |
35 | setUndoRedoEnabled(false); | |
36 | setLineWrapMode(QPlainTextEdit::NoWrap); | |
37 | setWordWrapMode(QTextOption::NoWrap); | |
38 | setBackgroundVisible(false); | |
39 | setFrameStyle(QFrame::NoFrame); | |
40 | setTabStopWidth(40); | |
41 | setAcceptDrops(false); | |
42 | setPrefix("terminal> "); | |
43 | setPrefixColor(QColor(140, 255, 50)); | |
44 | f.setBold(true); | |
45 | setPrefixFont(f); | |
46 | ||
47 | prepareCommandLine(); | |
48 | } | |
49 | ||
50 | void QPConsole::setPrefix(const QString &prefix) | |
51 | { | |
52 | mPrefix = prefix; | |
53 | } | |
54 | ||
55 | void QPConsole::setPrefixColor(const QColor &color) | |
56 | { | |
57 | mPrefixColor = color; | |
58 | } | |
59 | ||
60 | void QPConsole::setPrefixFont(const QFont &font) | |
61 | { | |
62 | mPrefixFont = font; | |
63 | } | |
64 | ||
65 | bool QPConsole::inCommandLine() const | |
66 | { | |
67 | return mCommandLineReady && document()->blockCount()-1 == textCursor().blockNumber() && textCursor().positionInBlock() >= mPrefix.length(); | |
68 | } | |
69 | ||
70 | void QPConsole::processCommand() | |
71 | { | |
72 | QString inputString = document()->lastBlock().text(); | |
73 | if (inputString.startsWith(mPrefix)) | |
74 | inputString.remove(0, mPrefix.length()); | |
75 | if (!inputString.trimmed().isEmpty()) | |
76 | mHistory.append(inputString); | |
77 | mHistoryPos = -1; | |
78 | inputString = inputString.trimmed(); | |
79 | ||
80 | QStringList params; | |
81 | QString cmd; | |
82 | int p = inputString.indexOf(' '); | |
83 | if (p > -1) | |
84 | { | |
85 | cmd = inputString.mid(0, p); | |
86 | params = getParams(inputString.mid(p+1)); | |
87 | } else | |
88 | cmd = inputString; | |
89 | ||
90 | QTextCursor cur(document()->lastBlock()); | |
91 | cur.movePosition(QTextCursor::EndOfBlock); | |
92 | cur.insertBlock(); | |
93 | setTextCursor(cur); | |
94 | mCommandLineReady = false; | |
95 | emit command(cmd, params); | |
96 | } | |
97 | ||
98 | QStringList QPConsole::getParams(QString str) | |
99 | { | |
100 | QStringList result; | |
101 | str = str.trimmed(); | |
102 | if (str.isEmpty()) | |
103 | return result; | |
104 | ||
105 | bool escaped = false; | |
106 | bool quoted = false; | |
107 | QString param; | |
108 | int i = 0; | |
109 | while (i < str.size()) | |
110 | { | |
111 | if (escaped) | |
112 | { | |
113 | escaped = false; | |
114 | param += str[i]; | |
115 | } else if (str[i] == '\\') | |
116 | { | |
117 | escaped = true; | |
118 | } else if (str[i] == '"') | |
119 | { | |
120 | quoted = !quoted; | |
121 | if (!param.isEmpty() && !(i+1>=str.size() || str[i+1]==' ')) // only add quote if not first and last, embracing a parameter | |
122 | param += str[i]; | |
123 | } else if (str[i] == ' ') | |
124 | { | |
125 | if (quoted) | |
126 | { | |
127 | param += str[i]; | |
128 | } else if (!param.isEmpty()) | |
129 | { | |
130 | result.append(param); | |
131 | param.clear(); | |
132 | } | |
133 | } else | |
134 | { | |
135 | param += str[i]; | |
136 | } | |
137 | ++i; | |
138 | } | |
139 | if (!param.isEmpty()) | |
140 | { | |
141 | result.append(param); | |
142 | param.clear(); | |
143 | } | |
144 | return result; | |
145 | } | |
146 | ||
147 | void QPConsole::keyPressEvent(QKeyEvent *event) | |
148 | { | |
149 | if (inCommandLine()) | |
150 | { | |
151 | // clear selection that spans multiple blocks (or prefix characters) (would overwrite previous command lines): | |
152 | QTextCursor cur = textCursor(); | |
153 | if (cur.hasSelection()) | |
154 | { | |
155 | if (document()->findBlock(cur.selectionStart()) != document()->findBlock(cur.selectionEnd()) || // spans multiple blocks (including command line) | |
156 | cur.selectionStart()-cur.block().position() < mPrefix.length() || // spans prefix | |
157 | cur.selectionEnd()-cur.block().position() < mPrefix.length() ) // spans prefix | |
158 | { | |
159 | cur.clearSelection(); | |
160 | if (cur.positionInBlock() < mPrefix.length()) | |
161 | cur.setPosition(cur.block().position()+mPrefix.length()); | |
162 | setTextCursor(cur); | |
163 | } | |
164 | } | |
165 | if (cur.positionInBlock() == mPrefix.length()) | |
166 | { | |
167 | cur.setCharFormat(QTextCharFormat()); // make sure we don't pick up format from prefix | |
168 | setTextCursor(cur); | |
169 | } | |
170 | // react to keystroke: | |
171 | if (event->matches(QKeySequence::MoveToPreviousLine)) // history up | |
172 | { | |
173 | if (mHistory.isEmpty() || mHistoryPos >= mHistory.size()-1) | |
174 | return; | |
175 | ++mHistoryPos; | |
176 | int index = mHistory.size()-mHistoryPos-1; | |
177 | QTextCursor cur(document()->lastBlock()); | |
178 | cur.movePosition(QTextCursor::NextCharacter, QTextCursor::MoveAnchor, mPrefix.length()); | |
179 | cur.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor); | |
180 | cur.removeSelectedText(); | |
181 | cur.setCharFormat(QTextCharFormat()); | |
182 | cur.insertText(mHistory.at(index)); | |
183 | setTextCursor(cur); | |
184 | } else if (event->matches(QKeySequence::MoveToNextLine)) // history down | |
185 | { | |
186 | if (mHistory.isEmpty() || mHistoryPos <= 0) | |
187 | return; | |
188 | --mHistoryPos; | |
189 | int index = mHistory.size()-mHistoryPos-1; | |
190 | QTextCursor cur(document()->lastBlock()); | |
191 | cur.movePosition(QTextCursor::NextCharacter, QTextCursor::MoveAnchor, mPrefix.length()); | |
192 | cur.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor); | |
193 | cur.removeSelectedText(); | |
194 | cur.setCharFormat(QTextCharFormat()); | |
195 | cur.insertText(mHistory.at(index)); | |
196 | setTextCursor(cur); | |
197 | } else if (event->matches(QKeySequence::Paste)) // paste text, do it manually to remove text char formatting and newlines | |
198 | { | |
199 | QString pasteText = QApplication::clipboard()->text(); | |
200 | pasteText.replace("\n", "").replace("\r", ""); | |
201 | cur.setCharFormat(QTextCharFormat()); | |
202 | cur.insertText(pasteText); | |
203 | setTextCursor(cur); | |
204 | } else if (event->key() == Qt::Key_Return) // process command | |
205 | { | |
206 | processCommand(); | |
207 | } else if (event->key() == Qt::Key_Backspace) // only allow backspace if we wouldn't delete last char of prefix | |
208 | { | |
209 | if (cur.positionInBlock() > mPrefix.length()) | |
210 | QPlainTextEdit::keyPressEvent(event); | |
211 | } else if (!event->matches(QKeySequence::Close) && | |
212 | !event->matches(QKeySequence::New) && | |
213 | !event->matches(QKeySequence::Open) && | |
214 | !event->matches(QKeySequence::Preferences) && | |
215 | !event->matches(QKeySequence::Bold) && | |
216 | !event->matches(QKeySequence::Italic) && | |
217 | !event->matches(QKeySequence::InsertLineSeparator) && | |
218 | !event->matches(QKeySequence::InsertParagraphSeparator) && | |
219 | !event->matches(QKeySequence::Redo) && | |
220 | !event->matches(QKeySequence::Undo) && | |
221 | !event->matches(QKeySequence::DeleteStartOfWord)) | |
222 | { | |
223 | QPlainTextEdit::keyPressEvent(event); | |
224 | } | |
225 | } else // cursor position not in command line | |
226 | { | |
227 | if (event->matches(QKeySequence::MoveToEndOfDocument) || | |
228 | event->matches(QKeySequence::MoveToEndOfBlock) || | |
229 | event->matches(QKeySequence::MoveToEndOfLine) || | |
230 | event->matches(QKeySequence::MoveToStartOfDocument) || | |
231 | event->matches(QKeySequence::MoveToStartOfBlock) || | |
232 | event->matches(QKeySequence::MoveToStartOfLine) || | |
233 | event->matches(QKeySequence::MoveToNextLine) || | |
234 | event->matches(QKeySequence::MoveToNextWord) || | |
235 | event->matches(QKeySequence::MoveToNextChar) || | |
236 | event->matches(QKeySequence::MoveToPreviousLine) || | |
237 | event->matches(QKeySequence::MoveToPreviousWord) || | |
238 | event->matches(QKeySequence::MoveToPreviousChar) || | |
239 | event->matches(QKeySequence::SelectAll) || | |
240 | event->matches(QKeySequence::SelectEndOfDocument) || | |
241 | event->matches(QKeySequence::SelectEndOfBlock) || | |
242 | event->matches(QKeySequence::SelectEndOfLine) || | |
243 | event->matches(QKeySequence::SelectStartOfDocument) || | |
244 | event->matches(QKeySequence::SelectStartOfBlock) || | |
245 | event->matches(QKeySequence::SelectStartOfLine) || | |
246 | event->matches(QKeySequence::SelectNextLine) || | |
247 | event->matches(QKeySequence::SelectNextWord) || | |
248 | event->matches(QKeySequence::SelectNextChar) || | |
249 | event->matches(QKeySequence::SelectPreviousLine) || | |
250 | event->matches(QKeySequence::SelectPreviousWord) || | |
251 | event->matches(QKeySequence::SelectPreviousChar) || | |
252 | event->matches(QKeySequence::Copy) ) | |
253 | QPlainTextEdit::keyPressEvent(event); | |
254 | } | |
255 | } | |
256 | ||
257 | void QPConsole::print(QString str) | |
258 | { | |
259 | QTextCursor cur(document()->lastBlock()); | |
260 | cur.setCharFormat(QTextCharFormat()); | |
261 | cur.insertText(str); | |
262 | cur.movePosition(QTextCursor::EndOfBlock); | |
263 | cur.insertBlock(); | |
264 | setTextCursor(cur); | |
265 | mCommandLineReady = false; | |
266 | } | |
267 | ||
268 | void QPConsole::prepareCommandLine() | |
269 | { | |
270 | QTextCursor cur(document()->lastBlock()); | |
271 | if (!document()->lastBlock().text().isEmpty()) | |
272 | { | |
273 | cur.movePosition(QTextCursor::EndOfBlock); | |
274 | cur.insertBlock(); | |
275 | } | |
276 | QTextCharFormat fmt; | |
277 | fmt.setForeground(QBrush(mPrefixColor)); | |
278 | fmt.setFont(mPrefixFont); | |
279 | cur.setCharFormat(fmt); | |
280 | cur.insertText(mPrefix); | |
281 | cur.setCharFormat(QTextCharFormat()); | |
282 | setTextCursor(cur); | |
283 | mCommandLineReady = true; | |
284 | } |