text/qstatictext.cpp

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41 -
42#include "qstatictext.h" -
43#include "qstatictext_p.h" -
44#include <private/qtextengine_p.h> -
45#include <private/qfontengine_p.h> -
46#include <qabstracttextdocumentlayout.h> -
47 -
48QT_BEGIN_NAMESPACE -
49 -
50/*! -
51 \class QStaticText -
52 \brief The QStaticText class enables optimized drawing of text when the text and its layout -
53 is updated rarely. -
54 \since 4.7 -
55 \inmodule QtGui -
56 -
57 \ingroup multimedia -
58 \ingroup text -
59 \ingroup shared -
60 \mainclass -
61 -
62 QStaticText provides a way to cache layout data for a block of text so that it can be drawn -
63 more efficiently than by using QPainter::drawText() in which the layout information is -
64 recalculated with every call. -
65 -
66 The class primarily provides an optimization for cases where the text, its font and the -
67 transformations on the painter are static over several paint events. If the text or its layout -
68 is changed for every iteration, QPainter::drawText() is the more efficient alternative, since -
69 the static text's layout would have to be recalculated to take the new state into consideration. -
70 -
71 Translating the painter will not cause the layout of the text to be recalculated, but will cause -
72 a very small performance impact on drawStaticText(). Altering any other parts of the painter's -
73 transformation or the painter's font will cause the layout of the static text to be -
74 recalculated. This should be avoided as often as possible to maximize the performance -
75 benefit of using QStaticText. -
76 -
77 In addition, only affine transformations are supported by drawStaticText(). Calling -
78 drawStaticText() on a projected painter will perform slightly worse than using the regular -
79 drawText() call, so this should be avoided. -
80 -
81 \code -
82 class MyWidget: public QWidget -
83 { -
84 public: -
85 MyWidget(QWidget *parent = 0) : QWidget(parent), m_staticText("This is static text") -
86 -
87 protected: -
88 void paintEvent(QPaintEvent *) -
89 { -
90 QPainter painter(this); -
91 painter.drawStaticText(0, 0, m_staticText); -
92 } -
93 -
94 private: -
95 QStaticText m_staticText; -
96 }; -
97 \endcode -
98 -
99 The QStaticText class can be used to mimic the behavior of QPainter::drawText() to a specific -
100 point with no boundaries, and also when QPainter::drawText() is called with a bounding -
101 rectangle. -
102 -
103 If a bounding rectangle is not required, create a QStaticText object without setting a preferred -
104 text width. The text will then occupy a single line. -
105 -
106 If you set a text width on the QStaticText object, this will bound the text. The text will -
107 be formatted so that no line exceeds the given width. The text width set for QStaticText will -
108 not automatically be used for clipping. To achieve clipping in addition to line breaks, use -
109 QPainter::setClipRect(). The position of the text is decided by the argument passed to -
110 QPainter::drawStaticText() and can change from call to call with a minimal impact on -
111 performance. -
112 -
113 For extra convenience, it is possible to apply formatting to the text using the HTML subset -
114 supported by QTextDocument. QStaticText will attempt to guess the format of the input text using -
115 Qt::mightBeRichText(), and interpret it as rich text if this function returns true. To force -
116 QStaticText to display its contents as either plain text or rich text, use the function -
117 QStaticText::setTextFormat() and pass in, respectively, Qt::PlainText and Qt::RichText. -
118 -
119 QStaticText can only represent text, so only HTML tags which alter the layout or appearance of -
120 the text will be respected. Adding an image to the input HTML, for instance, will cause the -
121 image to be included as part of the layout, affecting the positions of the text glyphs, but it -
122 will not be displayed. The result will be an empty area the size of the image in the output. -
123 Similarly, using tables will cause the text to be laid out in table format, but the borders -
124 will not be drawn. -
125 -
126 If it's the first time the static text is drawn, or if the static text, or the painter's font -
127 has been altered since the last time it was drawn, the text's layout has to be -
128 recalculated. On some paint engines, changing the matrix of the painter will also cause the -
129 layout to be recalculated. In particular, this will happen for any engine except for the -
130 OpenGL2 paint engine. Recalculating the layout will impose an overhead on the -
131 QPainter::drawStaticText() call where it occurs. To avoid this overhead in the paint event, you -
132 can call prepare() ahead of time to ensure that the layout is calculated. -
133 -
134 \sa QPainter::drawText(), QPainter::drawStaticText(), QTextLayout, QTextDocument -
135*/ -
136 -
137/*! -
138 \enum QStaticText::PerformanceHint -
139 -
140 This enum the different performance hints that can be set on the QStaticText. These hints -
141 can be used to indicate that the QStaticText should use additional caches, if possible, -
142 to improve performance at the expense of memory. In particular, setting the performance hint -
143 AggressiveCaching on the QStaticText will improve performance when using the OpenGL graphics -
144 system or when drawing to a QOpenGLWidget. -
145 -
146 \value ModerateCaching Do basic caching for high performance at a low memory cost. -
147 \value AggressiveCaching Use additional caching when available. This may improve performance -
148 at a higher memory cost. -
149*/ -
150 -
151/*! -
152 Constructs an empty QStaticText -
153*/ -
154QStaticText::QStaticText() -
155 : data(new QStaticTextPrivate) -
156{ -
157}
never executed: }
0
158 -
159/*! -
160 Constructs a QStaticText object with the given \a text. -
161*/ -
162QStaticText::QStaticText(const QString &text) -
163 : data(new QStaticTextPrivate) -
164{ -
165 data->text = text;
never executed (the execution status of this line is deduced): data->text = text;
-
166 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
167}
never executed: }
0
168 -
169/*! -
170 Constructs a QStaticText object which is a copy of \a other. -
171*/ -
172QStaticText::QStaticText(const QStaticText &other) -
173{ -
174 data = other.data;
never executed (the execution status of this line is deduced): data = other.data;
-
175}
never executed: }
0
176 -
177/*! -
178 Destroys the QStaticText. -
179*/ -
180QStaticText::~QStaticText() -
181{ -
182 Q_ASSERT(!data || data->ref.load() >= 1);
never executed (the execution status of this line is deduced): qt_noop();
-
183}
never executed: }
0
184 -
185/*! -
186 \internal -
187*/ -
188void QStaticText::detach() -
189{ -
190 if (data->ref.load() != 1)
never evaluated: data->ref.load() != 1
0
191 data.detach();
never executed: data.detach();
0
192}
never executed: }
0
193 -
194/*! -
195 Prepares the QStaticText object for being painted with the given \a matrix and the given \a font -
196 to avoid overhead when the actual drawStaticText() call is made. -
197 -
198 When drawStaticText() is called, the layout of the QStaticText will be recalculated if any part -
199 of the QStaticText object has changed since the last time it was drawn. It will also be -
200 recalculated if the painter's font is not the same as when the QStaticText was last drawn, or, -
201 on any other paint engine than the OpenGL2 engine, if the painter's matrix has been altered -
202 since the static text was last drawn. -
203 -
204 To avoid the overhead of creating the layout the first time you draw the QStaticText after -
205 making changes, you can use the prepare() function and pass in the \a matrix and \a font you -
206 expect to use when drawing the text. -
207 -
208 \sa QPainter::setFont(), QPainter::setMatrix() -
209*/ -
210void QStaticText::prepare(const QTransform &matrix, const QFont &font) -
211{ -
212 data->matrix = matrix;
never executed (the execution status of this line is deduced): data->matrix = matrix;
-
213 data->font = font;
never executed (the execution status of this line is deduced): data->font = font;
-
214 data->init();
never executed (the execution status of this line is deduced): data->init();
-
215}
never executed: }
0
216 -
217 -
218/*! -
219 Assigns \a other to this QStaticText. -
220*/ -
221QStaticText &QStaticText::operator=(const QStaticText &other) -
222{ -
223 data = other.data;
never executed (the execution status of this line is deduced): data = other.data;
-
224 return *this;
never executed: return *this;
0
225} -
226 -
227/*! -
228 \fn void QStaticText::swap(QStaticText &other) -
229 \since 5.0 -
230 -
231 Swaps this static text instance with \a other. This function is -
232 very fast and never fails. -
233*/ -
234 -
235/*! -
236 Compares \a other to this QStaticText. Returns true if the texts, fonts and text widths -
237 are equal. -
238*/ -
239bool QStaticText::operator==(const QStaticText &other) const -
240{ -
241 return (data == other.data
never executed: return (data == other.data || (data->text == other.data->text && data->font == other.data->font && data->textWidth == other.data->textWidth));
0
242 || (data->text == other.data->text
never executed: return (data == other.data || (data->text == other.data->text && data->font == other.data->font && data->textWidth == other.data->textWidth));
0
243 && data->font == other.data->font
never executed: return (data == other.data || (data->text == other.data->text && data->font == other.data->font && data->textWidth == other.data->textWidth));
0
244 && data->textWidth == other.data->textWidth));
never executed: return (data == other.data || (data->text == other.data->text && data->font == other.data->font && data->textWidth == other.data->textWidth));
0
245} -
246 -
247/*! -
248 Compares \a other to this QStaticText. Returns true if the texts, fonts or maximum sizes -
249 are different. -
250*/ -
251bool QStaticText::operator!=(const QStaticText &other) const -
252{ -
253 return !(*this == other);
never executed: return !(*this == other);
0
254} -
255 -
256/*! -
257 Sets the text of the QStaticText to \a text. -
258 -
259 \note This function will cause the layout of the text to require recalculation. -
260 -
261 \sa text() -
262*/ -
263void QStaticText::setText(const QString &text) -
264{ -
265 detach();
never executed (the execution status of this line is deduced): detach();
-
266 data->text = text;
never executed (the execution status of this line is deduced): data->text = text;
-
267 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
268}
never executed: }
0
269 -
270/*! -
271 Sets the text format of the QStaticText to \a textFormat. If \a textFormat is set to -
272 Qt::AutoText (the default), the format of the text will try to be determined using the -
273 function Qt::mightBeRichText(). If the text format is Qt::PlainText, then the text will be -
274 displayed as is, whereas it will be interpreted as HTML if the format is Qt::RichText. HTML tags -
275 that alter the font of the text, its color, or its layout are supported by QStaticText. -
276 -
277 \note This function will cause the layout of the text to require recalculation. -
278 -
279 \sa textFormat(), setText(), text() -
280*/ -
281void QStaticText::setTextFormat(Qt::TextFormat textFormat) -
282{ -
283 detach();
never executed (the execution status of this line is deduced): detach();
-
284 data->textFormat = textFormat;
never executed (the execution status of this line is deduced): data->textFormat = textFormat;
-
285 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
286}
never executed: }
0
287 -
288/*! -
289 Returns the text format of the QStaticText. -
290 -
291 \sa setTextFormat(), setText(), text() -
292*/ -
293Qt::TextFormat QStaticText::textFormat() const -
294{ -
295 return Qt::TextFormat(data->textFormat);
never executed: return Qt::TextFormat(data->textFormat);
0
296} -
297 -
298/*! -
299 Returns the text of the QStaticText. -
300 -
301 \sa setText() -
302*/ -
303QString QStaticText::text() const -
304{ -
305 return data->text;
never executed: return data->text;
0
306} -
307 -
308/*! -
309 Sets the performance hint of the QStaticText according to the \a -
310 performanceHint provided. The \a performanceHint is used to -
311 customize how much caching is done internally to improve -
312 performance. -
313 -
314 The default is QStaticText::ModerateCaching. -
315 -
316 \note This function will cause the layout of the text to require recalculation. -
317 -
318 \sa performanceHint() -
319*/ -
320void QStaticText::setPerformanceHint(PerformanceHint performanceHint) -
321{ -
322 if ((performanceHint == ModerateCaching && !data->useBackendOptimizations)
never evaluated: performanceHint == ModerateCaching
never evaluated: !data->useBackendOptimizations
0
323 || (performanceHint == AggressiveCaching && data->useBackendOptimizations)) {
never evaluated: performanceHint == AggressiveCaching
never evaluated: data->useBackendOptimizations
0
324 return;
never executed: return;
0
325 } -
326 detach();
never executed (the execution status of this line is deduced): detach();
-
327 data->useBackendOptimizations = (performanceHint == AggressiveCaching);
never executed (the execution status of this line is deduced): data->useBackendOptimizations = (performanceHint == AggressiveCaching);
-
328 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
329}
never executed: }
0
330 -
331/*! -
332 Returns which performance hint is set for the QStaticText. -
333 -
334 \sa setPerformanceHint() -
335*/ -
336QStaticText::PerformanceHint QStaticText::performanceHint() const -
337{ -
338 return data->useBackendOptimizations ? AggressiveCaching : ModerateCaching;
never executed: return data->useBackendOptimizations ? AggressiveCaching : ModerateCaching;
0
339} -
340 -
341/*! -
342 Sets the text option structure that controls the layout process to the given \a textOption. -
343 -
344 \sa textOption() -
345*/ -
346void QStaticText::setTextOption(const QTextOption &textOption) -
347{ -
348 detach();
never executed (the execution status of this line is deduced): detach();
-
349 data->textOption = textOption;
never executed (the execution status of this line is deduced): data->textOption = textOption;
-
350 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
351}
never executed: }
0
352 -
353/*! -
354 Returns the current text option used to control the layout process. -
355*/ -
356QTextOption QStaticText::textOption() const -
357{ -
358 return data->textOption;
never executed: return data->textOption;
0
359} -
360 -
361/*! -
362 Sets the preferred width for this QStaticText. If the text is wider than the specified width, -
363 it will be broken into multiple lines and grow vertically. If the text cannot be split into -
364 multiple lines, it will be larger than the specified \a textWidth. -
365 -
366 Setting the preferred text width to a negative number will cause the text to be unbounded. -
367 -
368 Use size() to get the actual size of the text. -
369 -
370 \note This function will cause the layout of the text to require recalculation. -
371 -
372 \sa textWidth(), size() -
373*/ -
374void QStaticText::setTextWidth(qreal textWidth) -
375{ -
376 detach();
never executed (the execution status of this line is deduced): detach();
-
377 data->textWidth = textWidth;
never executed (the execution status of this line is deduced): data->textWidth = textWidth;
-
378 data->invalidate();
never executed (the execution status of this line is deduced): data->invalidate();
-
379}
never executed: }
0
380 -
381/*! -
382 Returns the preferred width for this QStaticText. -
383 -
384 \sa setTextWidth() -
385*/ -
386qreal QStaticText::textWidth() const -
387{ -
388 return data->textWidth;
never executed: return data->textWidth;
0
389} -
390 -
391/*! -
392 Returns the size of the bounding rect for this QStaticText. -
393 -
394 \sa textWidth() -
395*/ -
396QSizeF QStaticText::size() const -
397{ -
398 if (data->needsRelayout)
never evaluated: data->needsRelayout
0
399 data->init();
never executed: data->init();
0
400 return data->actualSize;
never executed: return data->actualSize;
0
401} -
402 -
403QStaticTextPrivate::QStaticTextPrivate() -
404 : textWidth(-1.0), items(0), itemCount(0), glyphPool(0), positionPool(0), charPool(0), -
405 needsRelayout(true), useBackendOptimizations(false), textFormat(Qt::AutoText), -
406 untransformedCoordinates(false) -
407{ -
408}
never executed: }
0
409 -
410QStaticTextPrivate::QStaticTextPrivate(const QStaticTextPrivate &other) -
411 : text(other.text), font(other.font), textWidth(other.textWidth), matrix(other.matrix), -
412 items(0), itemCount(0), glyphPool(0), positionPool(0), charPool(0), textOption(other.textOption), -
413 needsRelayout(true), useBackendOptimizations(other.useBackendOptimizations), -
414 textFormat(other.textFormat), untransformedCoordinates(other.untransformedCoordinates) -
415{ -
416}
never executed: }
0
417 -
418QStaticTextPrivate::~QStaticTextPrivate() -
419{ -
420 delete[] items;
never executed (the execution status of this line is deduced): delete[] items;
-
421 delete[] glyphPool;
never executed (the execution status of this line is deduced): delete[] glyphPool;
-
422 delete[] positionPool;
never executed (the execution status of this line is deduced): delete[] positionPool;
-
423 delete[] charPool;
never executed (the execution status of this line is deduced): delete[] charPool;
-
424}
never executed: }
0
425 -
426QStaticTextPrivate *QStaticTextPrivate::get(const QStaticText *q) -
427{ -
428 return q->data.data();
never executed: return q->data.data();
0
429} -
430 -
431namespace { -
432 -
433 class DrawTextItemRecorder: public QPaintEngine -
434 { -
435 public: -
436 DrawTextItemRecorder(bool untransformedCoordinates, bool useBackendOptimizations) -
437 : m_dirtyPen(false), m_useBackendOptimizations(useBackendOptimizations), -
438 m_untransformedCoordinates(untransformedCoordinates), m_currentColor(Qt::black) -
439 { -
440 }
never executed: }
0
441 -
442 virtual void updateState(const QPaintEngineState &newState) -
443 { -
444 if (newState.state() & QPaintEngine::DirtyPen
never evaluated: newState.state() & QPaintEngine::DirtyPen
0
445 && newState.pen().color() != m_currentColor) {
never evaluated: newState.pen().color() != m_currentColor
0
446 m_dirtyPen = true;
never executed (the execution status of this line is deduced): m_dirtyPen = true;
-
447 m_currentColor = newState.pen().color();
never executed (the execution status of this line is deduced): m_currentColor = newState.pen().color();
-
448 }
never executed: }
0
449 }
never executed: }
0
450 -
451 virtual void drawTextItem(const QPointF &position, const QTextItem &textItem) -
452 { -
453 const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem);
never executed (the execution status of this line is deduced): const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem);
-
454 -
455 QStaticTextItem currentItem;
never executed (the execution status of this line is deduced): QStaticTextItem currentItem;
-
456 currentItem.setFontEngine(ti.fontEngine);
never executed (the execution status of this line is deduced): currentItem.setFontEngine(ti.fontEngine);
-
457 currentItem.font = ti.font();
never executed (the execution status of this line is deduced): currentItem.font = ti.font();
-
458 currentItem.charOffset = m_chars.size();
never executed (the execution status of this line is deduced): currentItem.charOffset = m_chars.size();
-
459 currentItem.numChars = ti.num_chars;
never executed (the execution status of this line is deduced): currentItem.numChars = ti.num_chars;
-
460 currentItem.glyphOffset = m_glyphs.size(); // Store offset into glyph pool
never executed (the execution status of this line is deduced): currentItem.glyphOffset = m_glyphs.size();
-
461 currentItem.positionOffset = m_glyphs.size(); // Offset into position pool
never executed (the execution status of this line is deduced): currentItem.positionOffset = m_glyphs.size();
-
462 currentItem.useBackendOptimizations = m_useBackendOptimizations;
never executed (the execution status of this line is deduced): currentItem.useBackendOptimizations = m_useBackendOptimizations;
-
463 if (m_dirtyPen)
never evaluated: m_dirtyPen
0
464 currentItem.color = m_currentColor;
never executed: currentItem.color = m_currentColor;
0
465 -
466 QTransform matrix = m_untransformedCoordinates ? QTransform() : state->transform();
never evaluated: m_untransformedCoordinates
0
467 matrix.translate(position.x(), position.y());
never executed (the execution status of this line is deduced): matrix.translate(position.x(), position.y());
-
468 -
469 QVarLengthArray<glyph_t> glyphs;
never executed (the execution status of this line is deduced): QVarLengthArray<glyph_t> glyphs;
-
470 QVarLengthArray<QFixedPoint> positions;
never executed (the execution status of this line is deduced): QVarLengthArray<QFixedPoint> positions;
-
471 ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions);
never executed (the execution status of this line is deduced): ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions);
-
472 -
473 int size = glyphs.size();
never executed (the execution status of this line is deduced): int size = glyphs.size();
-
474 Q_ASSERT(size == positions.size());
never executed (the execution status of this line is deduced): qt_noop();
-
475 currentItem.numGlyphs = size;
never executed (the execution status of this line is deduced): currentItem.numGlyphs = size;
-
476 -
477 m_glyphs.resize(m_glyphs.size() + size);
never executed (the execution status of this line is deduced): m_glyphs.resize(m_glyphs.size() + size);
-
478 m_positions.resize(m_glyphs.size());
never executed (the execution status of this line is deduced): m_positions.resize(m_glyphs.size());
-
479 m_chars.resize(m_chars.size() + ti.num_chars);
never executed (the execution status of this line is deduced): m_chars.resize(m_chars.size() + ti.num_chars);
-
480 -
481 glyph_t *glyphsDestination = m_glyphs.data() + currentItem.glyphOffset;
never executed (the execution status of this line is deduced): glyph_t *glyphsDestination = m_glyphs.data() + currentItem.glyphOffset;
-
482 memcpy(glyphsDestination, glyphs.constData(), sizeof(glyph_t) * currentItem.numGlyphs);
never executed (the execution status of this line is deduced): memcpy(glyphsDestination, glyphs.constData(), sizeof(glyph_t) * currentItem.numGlyphs);
-
483 -
484 QFixedPoint *positionsDestination = m_positions.data() + currentItem.positionOffset;
never executed (the execution status of this line is deduced): QFixedPoint *positionsDestination = m_positions.data() + currentItem.positionOffset;
-
485 memcpy(positionsDestination, positions.constData(), sizeof(QFixedPoint) * currentItem.numGlyphs);
never executed (the execution status of this line is deduced): memcpy(positionsDestination, positions.constData(), sizeof(QFixedPoint) * currentItem.numGlyphs);
-
486 -
487 QChar *charsDestination = m_chars.data() + currentItem.charOffset;
never executed (the execution status of this line is deduced): QChar *charsDestination = m_chars.data() + currentItem.charOffset;
-
488 memcpy(charsDestination, ti.chars, sizeof(QChar) * currentItem.numChars);
never executed (the execution status of this line is deduced): memcpy(charsDestination, ti.chars, sizeof(QChar) * currentItem.numChars);
-
489 -
490 m_items.append(currentItem);
never executed (the execution status of this line is deduced): m_items.append(currentItem);
-
491 }
never executed: }
0
492 -
493 virtual void drawPolygon(const QPointF *, int , PolygonDrawMode ) -
494 { -
495 /* intentionally empty */ -
496 } -
497 -
498 virtual bool begin(QPaintDevice *) { return true; }
never executed: return true;
0
499 virtual bool end() { return true; }
never executed: return true;
0
500 virtual void drawPixmap(const QRectF &, const QPixmap &, const QRectF &) {} -
501 virtual Type type() const -
502 { -
503 return User;
never executed: return User;
0
504 } -
505 -
506 QVector<QStaticTextItem> items() const -
507 { -
508 return m_items;
never executed: return m_items;
0
509 } -
510 -
511 QVector<QFixedPoint> positions() const -
512 { -
513 return m_positions;
never executed: return m_positions;
0
514 } -
515 -
516 QVector<glyph_t> glyphs() const -
517 { -
518 return m_glyphs;
never executed: return m_glyphs;
0
519 } -
520 -
521 QVector<QChar> chars() const -
522 { -
523 return m_chars;
never executed: return m_chars;
0
524 } -
525 -
526 private: -
527 QVector<QStaticTextItem> m_items; -
528 QVector<QFixedPoint> m_positions; -
529 QVector<glyph_t> m_glyphs; -
530 QVector<QChar> m_chars; -
531 -
532 bool m_dirtyPen; -
533 bool m_useBackendOptimizations; -
534 bool m_untransformedCoordinates; -
535 QColor m_currentColor; -
536 }; -
537 -
538 class DrawTextItemDevice: public QPaintDevice -
539 { -
540 public: -
541 DrawTextItemDevice(bool untransformedCoordinates, bool useBackendOptimizations) -
542 { -
543 m_paintEngine = new DrawTextItemRecorder(untransformedCoordinates,
never executed (the execution status of this line is deduced): m_paintEngine = new DrawTextItemRecorder(untransformedCoordinates,
-
544 useBackendOptimizations);
never executed (the execution status of this line is deduced): useBackendOptimizations);
-
545 }
never executed: }
0
546 -
547 ~DrawTextItemDevice() -
548 { -
549 delete m_paintEngine;
never executed (the execution status of this line is deduced): delete m_paintEngine;
-
550 }
never executed: }
0
551 -
552 int metric(PaintDeviceMetric m) const -
553 { -
554 int val;
never executed (the execution status of this line is deduced): int val;
-
555 switch (m) { -
556 case PdmWidth: -
557 case PdmHeight: -
558 case PdmWidthMM: -
559 case PdmHeightMM: -
560 val = 0;
never executed (the execution status of this line is deduced): val = 0;
-
561 break;
never executed: break;
0
562 case PdmDpiX: -
563 case PdmPhysicalDpiX: -
564 val = qt_defaultDpiX();
never executed (the execution status of this line is deduced): val = qt_defaultDpiX();
-
565 break;
never executed: break;
0
566 case PdmDpiY: -
567 case PdmPhysicalDpiY: -
568 val = qt_defaultDpiY();
never executed (the execution status of this line is deduced): val = qt_defaultDpiY();
-
569 break;
never executed: break;
0
570 case PdmNumColors: -
571 val = 16777216;
never executed (the execution status of this line is deduced): val = 16777216;
-
572 break;
never executed: break;
0
573 case PdmDepth: -
574 val = 24;
never executed (the execution status of this line is deduced): val = 24;
-
575 break;
never executed: break;
0
576 default: -
577 val = 0;
never executed (the execution status of this line is deduced): val = 0;
-
578 qWarning("DrawTextItemDevice::metric: Invalid metric command");
never executed (the execution status of this line is deduced): QMessageLogger("text/qstatictext.cpp", 578, __PRETTY_FUNCTION__).warning("DrawTextItemDevice::metric: Invalid metric command");
-
579 }
never executed: }
0
580 return val;
never executed: return val;
0
581 } -
582 -
583 virtual QPaintEngine *paintEngine() const -
584 { -
585 return m_paintEngine;
never executed: return m_paintEngine;
0
586 } -
587 -
588 QVector<glyph_t> glyphs() const -
589 { -
590 return m_paintEngine->glyphs();
never executed: return m_paintEngine->glyphs();
0
591 } -
592 -
593 QVector<QFixedPoint> positions() const -
594 { -
595 return m_paintEngine->positions();
never executed: return m_paintEngine->positions();
0
596 } -
597 -
598 QVector<QStaticTextItem> items() const -
599 { -
600 return m_paintEngine->items();
never executed: return m_paintEngine->items();
0
601 } -
602 -
603 QVector<QChar> chars() const -
604 { -
605 return m_paintEngine->chars();
never executed: return m_paintEngine->chars();
0
606 } -
607 -
608 private: -
609 DrawTextItemRecorder *m_paintEngine; -
610 }; -
611} -
612 -
613void QStaticTextPrivate::paintText(const QPointF &topLeftPosition, QPainter *p) -
614{ -
615 bool preferRichText = textFormat == Qt::RichText
never evaluated: textFormat == Qt::RichText
0
616 || (textFormat == Qt::AutoText && Qt::mightBeRichText(text));
never evaluated: textFormat == Qt::AutoText
never evaluated: Qt::mightBeRichText(text)
0
617 -
618 if (!preferRichText) {
never evaluated: !preferRichText
0
619 QTextLayout textLayout;
never executed (the execution status of this line is deduced): QTextLayout textLayout;
-
620 textLayout.setText(text);
never executed (the execution status of this line is deduced): textLayout.setText(text);
-
621 textLayout.setFont(font);
never executed (the execution status of this line is deduced): textLayout.setFont(font);
-
622 textLayout.setTextOption(textOption);
never executed (the execution status of this line is deduced): textLayout.setTextOption(textOption);
-
623 textLayout.setCacheEnabled(true);
never executed (the execution status of this line is deduced): textLayout.setCacheEnabled(true);
-
624 -
625 qreal leading = QFontMetricsF(font).leading();
never executed (the execution status of this line is deduced): qreal leading = QFontMetricsF(font).leading();
-
626 qreal height = -leading;
never executed (the execution status of this line is deduced): qreal height = -leading;
-
627 -
628 textLayout.beginLayout();
never executed (the execution status of this line is deduced): textLayout.beginLayout();
-
629 while (1) {
never evaluated: 1
0
630 QTextLine line = textLayout.createLine();
never executed (the execution status of this line is deduced): QTextLine line = textLayout.createLine();
-
631 if (!line.isValid())
never evaluated: !line.isValid()
0
632 break;
never executed: break;
0
633 -
634 if (textWidth >= 0.0)
never evaluated: textWidth >= 0.0
0
635 line.setLineWidth(textWidth);
never executed: line.setLineWidth(textWidth);
0
636 height += leading;
never executed (the execution status of this line is deduced): height += leading;
-
637 line.setPosition(QPointF(0.0, height));
never executed (the execution status of this line is deduced): line.setPosition(QPointF(0.0, height));
-
638 height += line.height();
never executed (the execution status of this line is deduced): height += line.height();
-
639 }
never executed: }
0
640 textLayout.endLayout();
never executed (the execution status of this line is deduced): textLayout.endLayout();
-
641 -
642 actualSize = textLayout.boundingRect().size();
never executed (the execution status of this line is deduced): actualSize = textLayout.boundingRect().size();
-
643 textLayout.draw(p, topLeftPosition);
never executed (the execution status of this line is deduced): textLayout.draw(p, topLeftPosition);
-
644 } else {
never executed: }
0
645 QTextDocument document;
never executed (the execution status of this line is deduced): QTextDocument document;
-
646#ifndef QT_NO_CSSPARSER -
647 QColor color = p->pen().color();
never executed (the execution status of this line is deduced): QColor color = p->pen().color();
-
648 document.setDefaultStyleSheet(QString::fromLatin1("body { color: #%1%2%3 }")
never executed (the execution status of this line is deduced): document.setDefaultStyleSheet(QString::fromLatin1("body { color: #%1%2%3 }")
-
649 .arg(QString::number(color.red(), 16), 2, QLatin1Char('0'))
never executed (the execution status of this line is deduced): .arg(QString::number(color.red(), 16), 2, QLatin1Char('0'))
-
650 .arg(QString::number(color.green(), 16), 2, QLatin1Char('0'))
never executed (the execution status of this line is deduced): .arg(QString::number(color.green(), 16), 2, QLatin1Char('0'))
-
651 .arg(QString::number(color.blue(), 16), 2, QLatin1Char('0')));
never executed (the execution status of this line is deduced): .arg(QString::number(color.blue(), 16), 2, QLatin1Char('0')));
-
652#endif -
653 document.setDefaultFont(font);
never executed (the execution status of this line is deduced): document.setDefaultFont(font);
-
654 document.setDocumentMargin(0.0);
never executed (the execution status of this line is deduced): document.setDocumentMargin(0.0);
-
655#ifndef QT_NO_TEXTHTMLPARSER -
656 document.setHtml(text);
never executed (the execution status of this line is deduced): document.setHtml(text);
-
657#else -
658 document.setPlainText(text); -
659#endif -
660 if (textWidth >= 0.0)
never evaluated: textWidth >= 0.0
0
661 document.setTextWidth(textWidth);
never executed: document.setTextWidth(textWidth);
0
662 else -
663 document.adjustSize();
never executed: document.adjustSize();
0
664 document.setDefaultTextOption(textOption);
never executed (the execution status of this line is deduced): document.setDefaultTextOption(textOption);
-
665 -
666 p->save();
never executed (the execution status of this line is deduced): p->save();
-
667 p->translate(topLeftPosition);
never executed (the execution status of this line is deduced): p->translate(topLeftPosition);
-
668 QAbstractTextDocumentLayout::PaintContext ctx;
never executed (the execution status of this line is deduced): QAbstractTextDocumentLayout::PaintContext ctx;
-
669 ctx.palette.setColor(QPalette::Text, p->pen().color());
never executed (the execution status of this line is deduced): ctx.palette.setColor(QPalette::Text, p->pen().color());
-
670 document.documentLayout()->draw(p, ctx);
never executed (the execution status of this line is deduced): document.documentLayout()->draw(p, ctx);
-
671 p->restore();
never executed (the execution status of this line is deduced): p->restore();
-
672 -
673 if (textWidth >= 0.0)
never evaluated: textWidth >= 0.0
0
674 document.adjustSize(); // Find optimal size
never executed: document.adjustSize();
0
675 -
676 actualSize = document.size();
never executed (the execution status of this line is deduced): actualSize = document.size();
-
677 }
never executed: }
0
678} -
679 -
680void QStaticTextPrivate::init() -
681{ -
682 delete[] items;
never executed (the execution status of this line is deduced): delete[] items;
-
683 delete[] glyphPool;
never executed (the execution status of this line is deduced): delete[] glyphPool;
-
684 delete[] positionPool;
never executed (the execution status of this line is deduced): delete[] positionPool;
-
685 delete[] charPool;
never executed (the execution status of this line is deduced): delete[] charPool;
-
686 -
687 position = QPointF(0, 0);
never executed (the execution status of this line is deduced): position = QPointF(0, 0);
-
688 -
689 DrawTextItemDevice device(untransformedCoordinates, useBackendOptimizations);
never executed (the execution status of this line is deduced): DrawTextItemDevice device(untransformedCoordinates, useBackendOptimizations);
-
690 { -
691 QPainter painter(&device);
never executed (the execution status of this line is deduced): QPainter painter(&device);
-
692 painter.setFont(font);
never executed (the execution status of this line is deduced): painter.setFont(font);
-
693 painter.setTransform(matrix);
never executed (the execution status of this line is deduced): painter.setTransform(matrix);
-
694 -
695 paintText(QPointF(0, 0), &painter);
never executed (the execution status of this line is deduced): paintText(QPointF(0, 0), &painter);
-
696 } -
697 -
698 QVector<QStaticTextItem> deviceItems = device.items();
never executed (the execution status of this line is deduced): QVector<QStaticTextItem> deviceItems = device.items();
-
699 QVector<QFixedPoint> positions = device.positions();
never executed (the execution status of this line is deduced): QVector<QFixedPoint> positions = device.positions();
-
700 QVector<glyph_t> glyphs = device.glyphs();
never executed (the execution status of this line is deduced): QVector<glyph_t> glyphs = device.glyphs();
-
701 QVector<QChar> chars = device.chars();
never executed (the execution status of this line is deduced): QVector<QChar> chars = device.chars();
-
702 -
703 itemCount = deviceItems.size();
never executed (the execution status of this line is deduced): itemCount = deviceItems.size();
-
704 items = new QStaticTextItem[itemCount];
never executed (the execution status of this line is deduced): items = new QStaticTextItem[itemCount];
-
705 -
706 glyphPool = new glyph_t[glyphs.size()];
never executed (the execution status of this line is deduced): glyphPool = new glyph_t[glyphs.size()];
-
707 memcpy(glyphPool, glyphs.constData(), glyphs.size() * sizeof(glyph_t));
never executed (the execution status of this line is deduced): memcpy(glyphPool, glyphs.constData(), glyphs.size() * sizeof(glyph_t));
-
708 -
709 positionPool = new QFixedPoint[positions.size()];
never executed (the execution status of this line is deduced): positionPool = new QFixedPoint[positions.size()];
-
710 memcpy(positionPool, positions.constData(), positions.size() * sizeof(QFixedPoint));
never executed (the execution status of this line is deduced): memcpy(positionPool, positions.constData(), positions.size() * sizeof(QFixedPoint));
-
711 -
712 charPool = new QChar[chars.size()];
never executed (the execution status of this line is deduced): charPool = new QChar[chars.size()];
-
713 memcpy(charPool, chars.constData(), chars.size() * sizeof(QChar));
never executed (the execution status of this line is deduced): memcpy(charPool, chars.constData(), chars.size() * sizeof(QChar));
-
714 -
715 for (int i=0; i<itemCount; ++i) {
never evaluated: i<itemCount
0
716 items[i] = deviceItems.at(i);
never executed (the execution status of this line is deduced): items[i] = deviceItems.at(i);
-
717 -
718 items[i].glyphs = glyphPool + items[i].glyphOffset;
never executed (the execution status of this line is deduced): items[i].glyphs = glyphPool + items[i].glyphOffset;
-
719 items[i].glyphPositions = positionPool + items[i].positionOffset;
never executed (the execution status of this line is deduced): items[i].glyphPositions = positionPool + items[i].positionOffset;
-
720 items[i].chars = charPool + items[i].charOffset;
never executed (the execution status of this line is deduced): items[i].chars = charPool + items[i].charOffset;
-
721 }
never executed: }
0
722 -
723 needsRelayout = false;
never executed (the execution status of this line is deduced): needsRelayout = false;
-
724}
never executed: }
0
725 -
726QStaticTextItem::~QStaticTextItem() -
727{ -
728 if (m_userData != 0 && !m_userData->ref.deref())
partially evaluated: m_userData != 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:31
never evaluated: !m_userData->ref.deref()
0-31
729 delete m_userData;
never executed: delete m_userData;
0
730 m_fontEngine->ref.deref();
executed (the execution status of this line is deduced): m_fontEngine->ref.deref();
-
731}
executed: }
Execution Count:31
31
732 -
733void QStaticTextItem::setFontEngine(QFontEngine *fe) -
734{ -
735 if (m_fontEngine != 0)
partially evaluated: m_fontEngine != 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:31
0-31
736 m_fontEngine->ref.deref();
never executed: m_fontEngine->ref.deref();
0
737 m_fontEngine = fe;
executed (the execution status of this line is deduced): m_fontEngine = fe;
-
738 if (m_fontEngine != 0)
partially evaluated: m_fontEngine != 0
TRUEFALSE
yes
Evaluation Count:31
no
Evaluation Count:0
0-31
739 m_fontEngine->ref.ref();
executed: m_fontEngine->ref.ref();
Execution Count:31
31
740}
executed: }
Execution Count:31
31
741 -
742QT_END_NAMESPACE -
743 -
Source codeSwitch to Preprocessed file
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