source: trunk/src/scripttools/debugging/qscriptedit.cpp@ 5

Last change on this file since 5 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 14.6 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtSCriptTools module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qscriptedit_p.h"
43#include "qscriptsyntaxhighlighter_p.h"
44
45#include <QtGui/qpainter.h>
46#include <QtGui/qicon.h>
47#include <QtGui/qboxlayout.h>
48#include <QtGui/qlabel.h>
49#include <QtGui/qlineedit.h>
50#include <QtGui/qmenu.h>
51#include <QtGui/qaction.h>
52#include <QtGui/qwidgetaction.h>
53#include <QtCore/qdebug.h>
54
55QT_BEGIN_NAMESPACE
56
57class QScriptEditExtraArea : public QWidget
58{
59public:
60 QScriptEditExtraArea(QScriptEdit *edit)
61 : QWidget(edit)
62 {
63 setMouseTracking(true);
64 }
65
66 QSize sizeHint() const {
67 return QSize(editor()->extraAreaWidth(), 0);
68 }
69
70protected:
71 void paintEvent(QPaintEvent *event)
72 {
73 editor()->extraAreaPaintEvent(event);
74 }
75 void mousePressEvent(QMouseEvent *event)
76 {
77 editor()->extraAreaMouseEvent(event);
78 }
79 void mouseMoveEvent(QMouseEvent *event)
80 {
81 editor()->extraAreaMouseEvent(event);
82 }
83 void mouseReleaseEvent(QMouseEvent *event)
84 {
85 editor()->extraAreaMouseEvent(event);
86 }
87 bool event(QEvent *event)
88 {
89 if (editor()->extraAreaEvent(event))
90 return true;
91 return QWidget::event(event);
92 }
93
94private:
95 QScriptEdit *editor() const
96 {
97 return qobject_cast<QScriptEdit*>(parent());
98 }
99};
100
101
102
103QScriptEdit::QScriptEdit(QWidget *parent)
104 : QPlainTextEdit(parent)
105{
106 m_baseLineNumber = 1;
107 m_executionLineNumber = -1;
108
109 m_extraArea = new QScriptEditExtraArea(this);
110
111 QObject::connect(this, SIGNAL(blockCountChanged(int)),
112 this, SLOT(updateExtraAreaWidth()));
113 QObject::connect(this, SIGNAL(updateRequest(const QRect &, int)),
114 this, SLOT(updateExtraArea(const QRect &, int)));
115 QObject::connect(this, SIGNAL(cursorPositionChanged()),
116 this, SLOT(highlightCurrentLine()));
117
118 updateExtraAreaWidth();
119
120#ifndef QT_NO_SYNTAXHIGHLIGHTER
121 (void) new QScriptSyntaxHighlighter(document());
122#endif
123}
124
125QScriptEdit::~QScriptEdit()
126{
127}
128
129int QScriptEdit::baseLineNumber() const
130{
131 return m_baseLineNumber;
132}
133
134void QScriptEdit::setBaseLineNumber(int base)
135{
136 m_baseLineNumber = base;
137 m_extraArea->update();
138}
139
140int QScriptEdit::executionLineNumber() const
141{
142 return m_executionLineNumber;
143}
144
145void QScriptEdit::setExecutionLineNumber(int lineNumber, bool error)
146{
147 m_executionLineNumber = lineNumber;
148 m_executionLineNumberHasError = error;
149 m_extraArea->update();
150 updateExtraSelections();
151 gotoLine(lineNumber);
152}
153
154void QScriptEdit::setExecutableLineNumbers(const QSet<int> &lineNumbers)
155{
156 m_executableLineNumbers = lineNumbers;
157}
158
159int QScriptEdit::currentLineNumber() const
160{
161 return textCursor().blockNumber() + m_baseLineNumber;
162}
163
164void QScriptEdit::gotoLine(int lineNumber)
165{
166 int blockNumber = lineNumber - m_baseLineNumber;
167 const QTextBlock &block = document()->findBlockByNumber(blockNumber);
168 if (block.isValid()) {
169 setTextCursor(QTextCursor(block));
170 centerCursor();
171 }
172}
173
174void QScriptEdit::setBreakpoint(int lineNumber)
175{
176 m_breakpoints[lineNumber] = BreakpointData();
177 m_extraArea->update();
178}
179
180void QScriptEdit::setBreakpointEnabled(int lineNumber, bool enable)
181{
182 m_breakpoints[lineNumber].enabled = enable;
183 m_extraArea->update();
184}
185
186void QScriptEdit::deleteBreakpoint(int lineNumber)
187{
188 m_breakpoints.remove(lineNumber);
189 m_extraArea->update();
190}
191
192void QScriptEdit::paintEvent(QPaintEvent *e)
193{
194 QPlainTextEdit::paintEvent(e);
195}
196
197void QScriptEdit::resizeEvent(QResizeEvent *e)
198{
199 QPlainTextEdit::resizeEvent(e);
200
201 QRect cr = contentsRect();
202 int x = isLeftToRight() ? cr.left() : cr.left() + cr.width() - extraAreaWidth();
203 m_extraArea->setGeometry(QRect(x, cr.top(), extraAreaWidth(), cr.height()));
204}
205
206void QScriptEdit::updateExtraAreaWidth()
207{
208 if (isLeftToRight())
209 setViewportMargins(extraAreaWidth(), 0, 0, 0);
210 else
211 setViewportMargins(0, 0, extraAreaWidth(), 0);
212}
213
214void QScriptEdit::updateExtraArea(const QRect &rect, int dy)
215{
216 if (dy)
217 m_extraArea->scroll(0, dy);
218 else
219 m_extraArea->update(0, rect.y(), m_extraArea->width(), rect.height());
220
221 if (rect.contains(viewport()->rect()))
222 updateExtraAreaWidth();
223}
224
225void QScriptEdit::highlightCurrentLine()
226{
227 updateExtraSelections();
228}
229
230void QScriptEdit::updateExtraSelections()
231{
232 QList<QTextEdit::ExtraSelection> extraSelections;
233
234 {
235 QTextEdit::ExtraSelection selection;
236 QColor lineColor = QColor(Qt::yellow).lighter(160);
237 selection.format.setBackground(lineColor);
238 selection.format.setProperty(QTextFormat::FullWidthSelection, true);
239 selection.cursor = textCursor();
240 selection.cursor.clearSelection();
241 extraSelections.append(selection);
242 }
243 if (m_executionLineNumber != -1) {
244 QTextEdit::ExtraSelection selection;
245 QColor lineColor;
246 if (m_executionLineNumberHasError)
247 lineColor = QColor(Qt::red);
248 else
249 lineColor = QColor(Qt::green).lighter(160);
250 selection.format.setBackground(lineColor);
251 selection.format.setProperty(QTextFormat::FullWidthSelection, true);
252 int blockNumber = m_executionLineNumber - m_baseLineNumber;
253 selection.cursor = QTextCursor(document()->findBlockByNumber(blockNumber));
254 selection.cursor.clearSelection();
255 extraSelections.append(selection);
256 }
257
258 setExtraSelections(extraSelections);
259}
260
261int QScriptEdit::extraAreaWidth() const
262{
263 int space = 0;
264 const QFontMetrics fm(fontMetrics());
265
266 int digits = 1;
267 int max = qMax(1, blockCount() + m_baseLineNumber);
268 while (max >= 10) {
269 max /= 10;
270 ++digits;
271 }
272 space += fm.width(QLatin1Char('9')) * digits;
273
274 int markWidth = fm.lineSpacing();
275 space += markWidth;
276
277 space += 4;
278
279 return space;
280}
281
282void QScriptEdit::extraAreaPaintEvent(QPaintEvent *e)
283{
284 QRect rect = e->rect();
285 QPalette pal = palette();
286 pal.setCurrentColorGroup(QPalette::Active);
287 QPainter painter(m_extraArea);
288 painter.fillRect(rect, Qt::lightGray);
289 const QFontMetrics fm(fontMetrics());
290
291 int markWidth = fm.lineSpacing();
292 int extraAreaWidth = m_extraArea->width();
293
294 QLinearGradient gradient(QPointF(extraAreaWidth - 10, 0), QPointF(extraAreaWidth, 0));
295 gradient.setColorAt(0, pal.color(QPalette::Background));
296 gradient.setColorAt(1, pal.color(QPalette::Base));
297 painter.fillRect(rect, gradient);
298
299 QLinearGradient gradient2(QPointF(0, 0), QPointF(markWidth, 0));
300 gradient2.setColorAt(0, pal.color(QPalette::Dark));
301 gradient2.setColorAt(1, pal.color(QPalette::Background));
302 painter.fillRect(rect.intersected(QRect(rect.x(), rect.y(), markWidth, rect.height())), gradient2);
303
304 painter.setPen(QPen(pal.color(QPalette::Background), 2));
305 if (isLeftToRight())
306 painter.drawLine(rect.x() + extraAreaWidth-1, rect.top(), rect.x() + extraAreaWidth-1, rect.bottom());
307 else
308 painter.drawLine(rect.x(), rect.top(), rect.x(), rect.bottom());
309 painter.setRenderHint(QPainter::Antialiasing);
310
311 QTextBlock block = firstVisibleBlock();
312 int blockNumber = block.blockNumber();
313 qreal top = blockBoundingGeometry(block).translated(contentOffset()).top();
314 qreal bottom = top + blockBoundingRect(block).height();
315
316 QString imagesPath = QString::fromLatin1(":/qt/scripttools/debugging/images");
317 QString imageExt;
318// SVGs don't work on all platforms, even when QT_NO_SVG is not defined, so disable SVG usage for now.
319// #ifndef QT_NO_SVG
320#if 0
321 imageExt = QString::fromLatin1("svg");
322#else
323 imageExt = QString::fromLatin1("png");
324#endif
325
326 while (block.isValid() && top <= rect.bottom()) {
327 if (block.isVisible() && bottom >= rect.top()) {
328
329 int lineNumber = blockNumber + m_baseLineNumber;
330 if (m_breakpoints.contains(lineNumber)) {
331 int radius = fm.lineSpacing() - 1;
332 QRect r(rect.x(), (int)top, radius, radius);
333 QIcon icon(m_breakpoints[lineNumber].enabled
334 ? QString::fromLatin1("%0/breakpoint.%1").arg(imagesPath).arg(imageExt)
335 : QString::fromLatin1("%0/d_breakpoint.%1").arg(imagesPath).arg(imageExt));
336 icon.paint(&painter, r, Qt::AlignCenter);
337 }
338 if (m_executionLineNumber == lineNumber) {
339 int radius = fm.lineSpacing() - 1;
340 QRect r(rect.x(), (int)top, radius, radius);
341 QIcon icon(QString::fromLatin1("%0/location.%1").arg(imagesPath).arg(imageExt));
342 icon.paint(&painter, r, Qt::AlignCenter);
343 }
344
345#if QT_VERSION >= 0x040500
346 if (!m_executableLineNumbers.contains(lineNumber))
347 painter.setPen(pal.color(QPalette::Mid));
348 else
349#endif
350 painter.setPen(QColor(Qt::darkCyan));
351 QString number = QString::number(lineNumber);
352 painter.drawText(rect.x() + markWidth, (int)top, rect.x() + extraAreaWidth - markWidth - 4,
353 fm.height(), Qt::AlignRight, number);
354 }
355
356 block = block.next();
357 top = bottom;
358 bottom = top + blockBoundingRect(block).height();
359 ++blockNumber;
360 }
361}
362
363void QScriptEdit::extraAreaMouseEvent(QMouseEvent *e)
364{
365 QTextCursor cursor = cursorForPosition(QPoint(0, e->pos().y()));
366 cursor.setPosition(cursor.block().position());
367
368 QFontMetrics fm(font());
369 int markWidth = fm.lineSpacing();
370
371 if (e->type() == QEvent::MouseMove && e->buttons() == 0) { // mouse tracking
372 bool hand = (e->pos().x() <= markWidth);
373#if QT_VERSION >= 0x040500
374 int lineNumber = cursor.blockNumber() + m_baseLineNumber;
375 hand = hand && m_executableLineNumbers.contains(lineNumber);
376#endif
377#ifndef QT_NO_CURSOR
378 if (hand != (m_extraArea->cursor().shape() == Qt::PointingHandCursor))
379 m_extraArea->setCursor(hand ? Qt::PointingHandCursor : Qt::ArrowCursor);
380#endif
381 }
382
383 if (e->type() == QEvent::MouseButtonPress) {
384 if (e->button() == Qt::LeftButton) {
385#if QT_VERSION >= 0x040500
386 int lineNumber = cursor.blockNumber() + m_baseLineNumber;
387 bool executable = m_executableLineNumbers.contains(lineNumber);
388#else
389 bool executable = true;
390#endif
391 if ((e->pos().x() <= markWidth) && executable)
392 m_extraAreaToggleBlockNumber = cursor.blockNumber();
393 else
394 m_extraAreaToggleBlockNumber = -1;
395 }
396 } else if (e->type() == QEvent::MouseButtonRelease) {
397 if (e->button() == Qt::LeftButton) {
398 if ((m_extraAreaToggleBlockNumber != -1) && (e->pos().x() <= markWidth)) {
399 int lineNumber = m_extraAreaToggleBlockNumber + m_baseLineNumber;
400 bool on = !m_breakpoints.contains(lineNumber);
401 emit breakpointToggleRequest(lineNumber, on);
402 }
403 } else if (e->button() == Qt::RightButton) {
404 int lineNumber = cursor.blockNumber() + m_baseLineNumber;
405#if QT_VERSION >= 0x040500
406 if (!m_executableLineNumbers.contains(lineNumber))
407 return;
408#endif
409 bool has = m_breakpoints.contains(lineNumber);
410 QMenu *popup = new QMenu();
411 QAction *toggleAct = new QAction(QObject::tr("Toggle Breakpoint"), popup);
412 popup->addAction(toggleAct);
413 QAction *disableAct = new QAction(QObject::tr("Disable Breakpoint"), popup);
414 QAction *enableAct = new QAction(QObject::tr("Enable Breakpoint"), popup);
415 QWidget *conditionWidget = new QWidget();
416 {
417 QHBoxLayout *hbox = new QHBoxLayout(conditionWidget);
418 hbox->addWidget(new QLabel(QObject::tr("Breakpoint Condition:")));
419 hbox->addWidget(new QLineEdit());
420 }
421// QWidgetAction *conditionAct = new QWidgetAction(popup);
422// conditionAct->setDefaultWidget(conditionWidget);
423 if (has) {
424 popup->addSeparator();
425 popup->addAction(m_breakpoints[lineNumber].enabled ? disableAct : enableAct);
426// popup->addAction(conditionAct);
427 }
428 QAction *ret = popup->exec(e->globalPos());
429 if (ret) {
430 if (ret == toggleAct) {
431 emit breakpointToggleRequest(lineNumber, !has);
432 } else if (ret == disableAct) {
433 emit breakpointEnableRequest(lineNumber, false);
434 } else if (ret == enableAct) {
435 emit breakpointEnableRequest(lineNumber, true);
436 }// else if (ret == conditionAct) {
437 //}
438 }
439 popup->deleteLater();
440 }
441 }
442}
443
444bool QScriptEdit::extraAreaEvent(QEvent *e)
445{
446 if (e->type() == QEvent::ToolTip) {
447 // ### show the breakpoint's condition, if any
448 return true;
449 }
450 return false;
451}
452
453QT_END_NAMESPACE
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