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c7b76823 SA |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2015 Victor Anjin <virinext@gmail.com> | |
5 | * Copyright (C) 2019 Soeren Apel <soeren@apelpie.net> | |
6 | * | |
7 | * The MIT License (MIT) | |
8 | * | |
9 | * Copyright (c) 2015 | |
10 | * | |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
17 | * | |
18 | * The above copyright notice and this permission notice shall be included in all | |
19 | * copies or substantial portions of the Software. | |
20 | * | |
21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
27 | * SOFTWARE. | |
28 | */ | |
29 | ||
978dbc9a SA |
30 | #include <limits> |
31 | ||
c7b76823 SA |
32 | #include <QApplication> |
33 | #include <QClipboard> | |
c8a6db0e | 34 | #include <QDebug> |
c7b76823 SA |
35 | #include <QFont> |
36 | #include <QKeyEvent> | |
37 | #include <QScrollBar> | |
38 | #include <QSize> | |
d5397ccb | 39 | #include <QString> |
c7b76823 SA |
40 | #include <QPainter> |
41 | #include <QPaintEvent> | |
42 | ||
43 | #include "QHexView.hpp" | |
44 | ||
978dbc9a SA |
45 | using std::make_pair; |
46 | ||
560f8377 SA |
47 | const unsigned int BYTES_PER_LINE = 16; |
48 | const unsigned int HEXCHARS_IN_LINE = BYTES_PER_LINE * 3 - 1; | |
49 | const unsigned int GAP_ADR_HEX = 10; | |
50 | const unsigned int GAP_HEX_ASCII = 10; | |
51 | const unsigned int GAP_ASCII_SLIDER = 5; | |
c7b76823 | 52 | |
c7b76823 SA |
53 | |
54 | QHexView::QHexView(QWidget *parent): | |
560f8377 | 55 | QAbstractScrollArea(parent), |
628b45cc SA |
56 | mode_(ChunkedDataMode), |
57 | data_(nullptr), | |
58 | selectBegin_(0), | |
59 | selectEnd_(0), | |
978dbc9a SA |
60 | cursorPos_(0), |
61 | visible_range_(0, 0), | |
62 | highlighted_sample_(std::numeric_limits<uint64_t>::max()) | |
c7b76823 SA |
63 | { |
64 | setFont(QFont("Courier", 10)); | |
65 | ||
560f8377 | 66 | charWidth_ = fontMetrics().boundingRect('X').width(); |
c7b76823 SA |
67 | charHeight_ = fontMetrics().height(); |
68 | ||
c7b76823 | 69 | setFocusPolicy(Qt::StrongFocus); |
a61abf09 SA |
70 | |
71 | if (palette().color(QPalette::ButtonText).toHsv().value() > 127) { | |
72 | // Color is bright | |
73 | chunk_colors_.emplace_back(100, 149, 237); // QColorConstants::Svg::cornflowerblue | |
74 | chunk_colors_.emplace_back(60, 179, 113); // QColorConstants::Svg::mediumseagreen | |
75 | chunk_colors_.emplace_back(210, 180, 140); // QColorConstants::Svg::tan | |
978dbc9a | 76 | visible_range_color_ = QColor("#fff5ee"); // QColorConstants::Svg::seashell |
a61abf09 SA |
77 | } else { |
78 | // Color is dark | |
978dbc9a SA |
79 | chunk_colors_.emplace_back(0, 0, 139); // QColorConstants::Svg::darkblue |
80 | chunk_colors_.emplace_back(34, 139, 34); // QColorConstants::Svg::forestgreen | |
81 | chunk_colors_.emplace_back(160, 82, 45); // QColorConstants::Svg::sienna | |
82 | visible_range_color_ = QColor("#fff5ee"); // QColorConstants::Svg::seashell | |
a61abf09 | 83 | } |
c7b76823 SA |
84 | } |
85 | ||
d5645564 | 86 | void QHexView::set_mode(Mode m) |
c7b76823 | 87 | { |
628b45cc SA |
88 | mode_ = m; |
89 | ||
90 | // This is not expected to be set when data is showing, | |
91 | // so we don't update the viewport here | |
92 | } | |
c7b76823 | 93 | |
d5645564 | 94 | void QHexView::set_data(const DecodeBinaryClass* data) |
628b45cc | 95 | { |
01ba5ed7 | 96 | data_ = data; |
628b45cc | 97 | |
c8a6db0e | 98 | size_t size = 0; |
ee4ba097 SA |
99 | if (data) { |
100 | size_t chunks = data_->chunks.size(); | |
101 | for (size_t i = 0; i < chunks; i++) | |
102 | size += data_->chunks[i].data.size(); | |
103 | } | |
c8a6db0e | 104 | data_size_ = size; |
628b45cc | 105 | |
d5397ccb SA |
106 | address_digits_ = (uint8_t)QString::number(data_size_, 16).length(); |
107 | ||
108 | // Calculate X coordinates of the three sub-areas | |
109 | posAddr_ = 0; | |
110 | posHex_ = address_digits_ * charWidth_ + GAP_ADR_HEX; | |
111 | posAscii_ = posHex_ + HEXCHARS_IN_LINE * charWidth_ + GAP_HEX_ASCII; | |
112 | ||
628b45cc SA |
113 | viewport()->update(); |
114 | } | |
115 | ||
978dbc9a SA |
116 | void QHexView::set_visible_sample_range(uint64_t start, uint64_t end) |
117 | { | |
118 | visible_range_ = make_pair(start, end); | |
119 | ||
120 | viewport()->update(); | |
121 | } | |
122 | ||
123 | void QHexView::set_highlighted_data_sample(uint64_t sample) | |
124 | { | |
125 | highlighted_sample_ = sample; | |
126 | ||
127 | viewport()->update(); | |
128 | } | |
129 | ||
d5645564 SA |
130 | unsigned int QHexView::get_bytes_per_line() const |
131 | { | |
132 | return BYTES_PER_LINE; | |
133 | } | |
134 | ||
628b45cc SA |
135 | void QHexView::clear() |
136 | { | |
137 | verticalScrollBar()->setValue(0); | |
138 | data_ = nullptr; | |
139 | data_size_ = 0; | |
b2b18d3a | 140 | |
978dbc9a SA |
141 | highlighted_sample_ = std::numeric_limits<uint64_t>::max(); |
142 | ||
b2b18d3a | 143 | viewport()->update(); |
c7b76823 SA |
144 | } |
145 | ||
146 | void QHexView::showFromOffset(size_t offset) | |
147 | { | |
628b45cc | 148 | if (data_ && (offset < data_size_)) { |
c7b76823 SA |
149 | setCursorPos(offset * 2); |
150 | ||
151 | int cursorY = cursorPos_ / (2 * BYTES_PER_LINE); | |
152 | verticalScrollBar() -> setValue(cursorY); | |
153 | } | |
4b97fe09 SA |
154 | |
155 | viewport()->update(); | |
c7b76823 SA |
156 | } |
157 | ||
6961eab0 SA |
158 | QSizePolicy QHexView::sizePolicy() const |
159 | { | |
160 | return QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding); | |
161 | } | |
162 | ||
13b726cd SA |
163 | pair<size_t, size_t> QHexView::get_selection() const |
164 | { | |
165 | size_t start = selectBegin_ / 2; | |
166 | size_t end = selectEnd_ / 2; | |
167 | ||
168 | if (start == end) { | |
169 | // Nothing is currently selected | |
170 | start = 0; | |
171 | end = data_size_; | |
e094bcb2 | 172 | } if (end < data_size_) |
13b726cd SA |
173 | end++; |
174 | ||
175 | return std::make_pair(start, end); | |
176 | } | |
177 | ||
d5645564 SA |
178 | size_t QHexView::create_hex_line(size_t start, size_t end, QString* dest, |
179 | bool with_offset, bool with_ascii) | |
180 | { | |
181 | dest->clear(); | |
182 | ||
183 | // Determine start address for the row | |
184 | uint64_t row = start / BYTES_PER_LINE; | |
185 | uint64_t offset = row * BYTES_PER_LINE; | |
b6d0bcb8 | 186 | end = std::min((uint64_t)end, offset + BYTES_PER_LINE); |
d5645564 SA |
187 | |
188 | if (with_offset) | |
d5397ccb | 189 | dest->append(QString("%1 ").arg(row * BYTES_PER_LINE, address_digits_, 16, QChar('0')).toUpper()); |
d5645564 SA |
190 | |
191 | initialize_byte_iterator(offset); | |
192 | for (size_t i = offset; i < offset + BYTES_PER_LINE; i++) { | |
193 | uint8_t value = 0; | |
194 | ||
195 | if (i < end) | |
196 | value = get_next_byte(); | |
197 | ||
198 | if ((i < start) || (i >= end)) | |
199 | dest->append(" "); | |
200 | else | |
201 | dest->append(QString("%1 ").arg(value, 2, 16, QChar('0')).toUpper()); | |
202 | } | |
203 | ||
204 | if (with_ascii) { | |
205 | initialize_byte_iterator(offset); | |
206 | for (size_t i = offset; i < end; i++) { | |
207 | uint8_t value = get_next_byte(); | |
208 | ||
5cdf186d SA |
209 | if ((value < 0x20) || (value > 0x7E)) |
210 | value = '.'; | |
211 | ||
d5645564 SA |
212 | if (i < start) |
213 | dest->append(' '); | |
214 | else | |
215 | dest->append((char)value); | |
216 | } | |
217 | } | |
218 | ||
219 | return end; | |
220 | } | |
221 | ||
628b45cc | 222 | void QHexView::initialize_byte_iterator(size_t offset) |
c7b76823 | 223 | { |
628b45cc SA |
224 | current_chunk_id_ = 0; |
225 | current_chunk_offset_ = 0; | |
cbf428c2 | 226 | current_offset_ = offset; |
628b45cc | 227 | |
c8a6db0e SA |
228 | size_t chunks = data_->chunks.size(); |
229 | for (size_t i = 0; i < chunks; i++) { | |
230 | size_t size = data_->chunks[i].data.size(); | |
231 | ||
232 | if (offset >= size) { | |
628b45cc | 233 | current_chunk_id_++; |
c8a6db0e | 234 | offset -= size; |
628b45cc SA |
235 | } else { |
236 | current_chunk_offset_ = offset; | |
237 | break; | |
238 | } | |
c8a6db0e | 239 | } |
4b97fe09 | 240 | |
c8a6db0e SA |
241 | if (current_chunk_id_ < data_->chunks.size()) |
242 | current_chunk_ = data_->chunks[current_chunk_id_]; | |
978dbc9a SA |
243 | |
244 | current_chunk_sample_ = current_chunk_.sample; | |
245 | ||
246 | // Obtain sample of next chunk if there is one | |
247 | if ((current_chunk_id_ + 1) < data_->chunks.size()) | |
248 | next_chunk_sample_ = data_->chunks[current_chunk_id_ + 1].sample; | |
249 | else | |
250 | next_chunk_sample_ = std::numeric_limits<uint64_t>::max(); | |
628b45cc SA |
251 | } |
252 | ||
978dbc9a | 253 | uint8_t QHexView::get_next_byte(bool* is_new_chunk) |
628b45cc | 254 | { |
978dbc9a SA |
255 | if (is_new_chunk != nullptr) |
256 | *is_new_chunk = (current_chunk_offset_ == 0); | |
628b45cc | 257 | |
c8a6db0e SA |
258 | uint8_t v = 0; |
259 | if (current_chunk_offset_ < current_chunk_.data.size()) | |
260 | v = current_chunk_.data[current_chunk_offset_]; | |
628b45cc | 261 | |
978dbc9a SA |
262 | current_chunk_sample_ = current_chunk_.sample; |
263 | ||
264 | if (is_new_chunk) { | |
265 | // Obtain sample of next chunk if there is one | |
266 | if ((current_chunk_id_ + 1) < data_->chunks.size()) | |
267 | next_chunk_sample_ = data_->chunks[current_chunk_id_ + 1].sample; | |
268 | else | |
269 | next_chunk_sample_ = std::numeric_limits<uint64_t>::max(); | |
270 | } | |
271 | ||
cbf428c2 | 272 | current_offset_++; |
628b45cc | 273 | current_chunk_offset_++; |
cbf428c2 | 274 | |
c8a6db0e SA |
275 | if (current_offset_ > data_size_) { |
276 | qWarning() << "QHexView::get_next_byte() overran binary data boundary:" << | |
277 | current_offset_ << "of" << data_size_ << "bytes"; | |
278 | return 0xEE; | |
279 | } | |
280 | ||
281 | if ((current_chunk_offset_ == current_chunk_.data.size()) && (current_offset_ < data_size_)) { | |
628b45cc SA |
282 | current_chunk_id_++; |
283 | current_chunk_offset_ = 0; | |
516d2128 | 284 | current_chunk_ = data_->chunks[current_chunk_id_]; |
628b45cc SA |
285 | } |
286 | ||
287 | return v; | |
c7b76823 SA |
288 | } |
289 | ||
560f8377 | 290 | QSize QHexView::getFullSize() const |
c7b76823 | 291 | { |
fae7037a | 292 | size_t width = posAscii_ + (BYTES_PER_LINE * charWidth_); |
560f8377 | 293 | |
fae7037a SA |
294 | if (verticalScrollBar()->isEnabled()) |
295 | width += GAP_ASCII_SLIDER + verticalScrollBar()->width(); | |
296 | ||
297 | if (!data_ || (data_size_ == 0)) | |
01ba5ed7 | 298 | return QSize(width, 0); |
560f8377 | 299 | |
628b45cc | 300 | size_t height = data_size_ / BYTES_PER_LINE; |
01ba5ed7 | 301 | |
628b45cc | 302 | if (data_size_ % BYTES_PER_LINE) |
c7b76823 SA |
303 | height++; |
304 | ||
305 | height *= charHeight_; | |
306 | ||
307 | return QSize(width, height); | |
308 | } | |
309 | ||
310 | void QHexView::paintEvent(QPaintEvent *event) | |
311 | { | |
c7b76823 SA |
312 | QPainter painter(viewport()); |
313 | ||
978dbc9a SA |
314 | QFont normal_font = painter.font(); |
315 | QFont bold_font = painter.font(); | |
316 | bold_font.setWeight(QFont::Bold); | |
317 | ||
318 | bool bold_font_was_used = false; | |
319 | ||
560f8377 | 320 | // Calculate and update the widget and paint area sizes |
560f8377 SA |
321 | QSize widgetSize = getFullSize(); |
322 | setMinimumWidth(widgetSize.width()); | |
323 | setMaximumWidth(widgetSize.width()); | |
ee4ba097 | 324 | QSize areaSize = viewport()->size() - QSize(0, charHeight_); |
560f8377 | 325 | |
fae7037a SA |
326 | // Only show scrollbar if the content goes beyond the visible area |
327 | if (widgetSize.height() > areaSize.height()) { | |
328 | verticalScrollBar()->setEnabled(true); | |
329 | verticalScrollBar()->setPageStep(areaSize.height() / charHeight_); | |
330 | verticalScrollBar()->setRange(0, ((widgetSize.height() - areaSize.height())) / charHeight_ + 1); | |
331 | } else | |
332 | verticalScrollBar()->setEnabled(false); | |
c7b76823 | 333 | |
01ba5ed7 SA |
334 | // Fill widget background |
335 | painter.fillRect(event->rect(), palette().color(QPalette::Base)); | |
336 | ||
ff49e70c | 337 | if (!data_ || (data_size_ == 0) || (data_->chunks.empty())) { |
01ba5ed7 SA |
338 | painter.setPen(palette().color(QPalette::Text)); |
339 | QString s = tr("No data available"); | |
340 | int x = (areaSize.width() - fontMetrics().boundingRect(s).width()) / 2; | |
341 | int y = areaSize.height() / 2; | |
342 | painter.drawText(x, y, s); | |
343 | return; | |
344 | } | |
345 | ||
346 | // Determine first/last line indices | |
c7b76823 SA |
347 | size_t firstLineIdx = verticalScrollBar()->value(); |
348 | ||
ee4ba097 | 349 | size_t lastLineIdx = firstLineIdx + (areaSize.height() / charHeight_); |
628b45cc SA |
350 | if (lastLineIdx > (data_size_ / BYTES_PER_LINE)) { |
351 | lastLineIdx = data_size_ / BYTES_PER_LINE; | |
352 | if (data_size_ % BYTES_PER_LINE) | |
c7b76823 SA |
353 | lastLineIdx++; |
354 | } | |
355 | ||
560f8377 SA |
356 | // Paint divider line between hex and ASCII areas |
357 | int line_x = posAscii_ - (GAP_HEX_ASCII / 2); | |
358 | painter.setPen(palette().color(QPalette::Midlight)); | |
359 | painter.drawLine(line_x, event->rect().top(), line_x, height()); | |
c7b76823 | 360 | |
48b168aa SA |
361 | // Fill address area background |
362 | painter.fillRect(QRect(posAddr_, event->rect().top(), | |
363 | posHex_ - (GAP_ADR_HEX / 2), height()), palette().color(QPalette::Window)); | |
364 | painter.fillRect(QRect(posAddr_, event->rect().top(), | |
365 | posAscii_ - (GAP_HEX_ASCII / 2), charHeight_ + 2), palette().color(QPalette::Window)); | |
366 | ||
560f8377 SA |
367 | // Paint address area |
368 | painter.setPen(palette().color(QPalette::ButtonText)); | |
c7b76823 | 369 | |
ee4ba097 | 370 | int yStart = 2 * charHeight_; |
560f8377 | 371 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
c7b76823 | 372 | |
d5397ccb | 373 | QString address = QString("%1").arg(lineIdx * 16, address_digits_, 16, QChar('0')).toUpper(); |
560f8377 SA |
374 | painter.drawText(posAddr_, y, address); |
375 | y += charHeight_; | |
376 | } | |
c7b76823 | 377 | |
ee4ba097 SA |
378 | // Paint top row with hex offsets |
379 | painter.setPen(palette().color(QPalette::ButtonText)); | |
380 | for (int offset = 0; offset <= 0xF; offset++) | |
381 | painter.drawText(posHex_ + (1 + offset * 3) * charWidth_, | |
48b168aa | 382 | charHeight_ - 3, QString::number(offset, 16).toUpper()); |
ee4ba097 | 383 | |
560f8377 | 384 | // Paint hex values |
978dbc9a SA |
385 | QBrush regular_brush = palette().buttonText(); |
386 | QBrush selected_brush = palette().highlight(); | |
387 | QBrush visible_range_brush = QBrush(visible_range_color_); | |
a61abf09 SA |
388 | |
389 | bool multiple_chunks = (data_->chunks.size() > 1); | |
390 | unsigned int chunk_color = 0; | |
c7b76823 | 391 | |
628b45cc | 392 | initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE); |
978dbc9a | 393 | |
ee4ba097 | 394 | yStart = 2 * charHeight_; |
560f8377 SA |
395 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
396 | ||
560f8377 | 397 | int x = posHex_; |
cbf428c2 | 398 | for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) { |
c7b76823 | 399 | size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2; |
c7b76823 | 400 | |
a61abf09 | 401 | // Fetch byte |
978dbc9a SA |
402 | bool is_new_chunk; |
403 | uint8_t byte_value = get_next_byte(&is_new_chunk); | |
a61abf09 | 404 | |
978dbc9a | 405 | if (is_new_chunk) { |
a61abf09 SA |
406 | chunk_color++; |
407 | if (chunk_color == chunk_colors_.size()) | |
408 | chunk_color = 0; | |
978dbc9a SA |
409 | |
410 | // New chunk means also new chunk sample, so check for required changes | |
411 | if (bold_font_was_used) | |
412 | painter.setFont(normal_font); | |
413 | if ((highlighted_sample_ >= current_chunk_sample_) && (highlighted_sample_ < next_chunk_sample_)) { | |
414 | painter.setFont(bold_font); | |
415 | bold_font_was_used = true; | |
416 | } | |
417 | } | |
418 | ||
419 | // Restore default paint style | |
420 | painter.setBackground(regular_brush); | |
421 | painter.setBackgroundMode(Qt::TransparentMode); | |
422 | if (!multiple_chunks) | |
423 | painter.setPen(palette().color(QPalette::Text)); | |
424 | else | |
425 | painter.setPen(chunk_colors_[chunk_color]); | |
426 | ||
427 | // Highlight needed because it's the range visible in main view? | |
428 | if ((current_chunk_sample_ >= visible_range_.first) && (current_chunk_sample_ < visible_range_.second)) { | |
429 | painter.setBackgroundMode(Qt::OpaqueMode); | |
430 | painter.setBackground(visible_range_brush); | |
a61abf09 SA |
431 | } |
432 | ||
978dbc9a | 433 | // Highlight for selection range needed? (takes priority over visible range highlight) |
560f8377 | 434 | if ((pos >= selectBegin_) && (pos < selectEnd_)) { |
a61abf09 | 435 | painter.setBackgroundMode(Qt::OpaqueMode); |
978dbc9a | 436 | painter.setBackground(selected_brush); |
560f8377 | 437 | painter.setPen(palette().color(QPalette::HighlightedText)); |
c7b76823 SA |
438 | } |
439 | ||
560f8377 | 440 | // First nibble |
628b45cc | 441 | QString val = QString::number((byte_value & 0xF0) >> 4, 16).toUpper(); |
560f8377 | 442 | painter.drawText(x, y, val); |
c7b76823 | 443 | |
560f8377 | 444 | // Second nibble |
628b45cc | 445 | val = QString::number((byte_value & 0xF), 16).toUpper(); |
560f8377 | 446 | painter.drawText(x + charWidth_, y, val); |
c7b76823 | 447 | |
978dbc9a | 448 | if ((i < BYTES_PER_LINE - 1) && (current_offset_ < data_size_)) |
a7af8bb0 SA |
449 | painter.drawText(x + 2 * charWidth_, y, QString(' ')); |
450 | ||
560f8377 | 451 | x += 3 * charWidth_; |
c7b76823 SA |
452 | } |
453 | ||
560f8377 SA |
454 | y += charHeight_; |
455 | } | |
456 | ||
457 | // Paint ASCII characters | |
628b45cc | 458 | initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE); |
ee4ba097 | 459 | yStart = 2 * charHeight_; |
560f8377 SA |
460 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
461 | ||
462 | int x = posAscii_; | |
cbf428c2 | 463 | for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) { |
628b45cc | 464 | // Fetch byte |
978dbc9a SA |
465 | bool is_new_chunk; |
466 | uint8_t ch = get_next_byte(&is_new_chunk); | |
467 | ||
468 | if (is_new_chunk) { | |
469 | // New chunk means also new chunk sample, so check for required changes | |
470 | if (bold_font_was_used) | |
471 | painter.setFont(normal_font); | |
472 | if ((highlighted_sample_ >= current_chunk_sample_) && (highlighted_sample_ < next_chunk_sample_)) { | |
473 | painter.setFont(bold_font); | |
474 | bold_font_was_used = true; | |
475 | } | |
476 | } | |
c7b76823 | 477 | |
560f8377 | 478 | if ((ch < 0x20) || (ch > 0x7E)) |
c7b76823 SA |
479 | ch = '.'; |
480 | ||
978dbc9a SA |
481 | // Restore default paint style |
482 | painter.setBackgroundMode(Qt::TransparentMode); | |
483 | painter.setBackground(regular_brush); | |
484 | painter.setPen(palette().color(QPalette::Text)); | |
485 | ||
486 | // Highlight needed because it's the range visible in main view? | |
487 | if ((current_chunk_sample_ >= visible_range_.first) && (current_chunk_sample_ < visible_range_.second)) { | |
488 | painter.setBackgroundMode(Qt::OpaqueMode); | |
489 | painter.setBackground(visible_range_brush); | |
490 | } | |
491 | ||
492 | // Highlight for selection range needed? (takes priority over visible range highlight) | |
560f8377 SA |
493 | size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2; |
494 | if ((pos >= selectBegin_) && (pos < selectEnd_)) { | |
a61abf09 | 495 | painter.setBackgroundMode(Qt::OpaqueMode); |
978dbc9a | 496 | painter.setBackground(selected_brush); |
560f8377 | 497 | painter.setPen(palette().color(QPalette::HighlightedText)); |
560f8377 SA |
498 | } |
499 | ||
1ed73ebd VPP |
500 | #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) |
501 | painter.drawText(x, y, QString(QChar(ch))); | |
502 | #else | |
560f8377 | 503 | painter.drawText(x, y, QString(ch)); |
1ed73ebd | 504 | #endif |
560f8377 | 505 | x += charWidth_; |
c7b76823 SA |
506 | } |
507 | ||
560f8377 | 508 | y += charHeight_; |
c7b76823 SA |
509 | } |
510 | ||
978dbc9a SA |
511 | // Restore painter defaults |
512 | painter.setBackgroundMode(Qt::TransparentMode); | |
513 | painter.setBackground(regular_brush); | |
514 | ||
560f8377 | 515 | // Paint cursor |
c7b76823 SA |
516 | if (hasFocus()) { |
517 | int x = (cursorPos_ % (2 * BYTES_PER_LINE)); | |
518 | int y = cursorPos_ / (2 * BYTES_PER_LINE); | |
519 | y -= firstLineIdx; | |
520 | int cursorX = (((x / 2) * 3) + (x % 2)) * charWidth_ + posHex_; | |
ee4ba097 | 521 | int cursorY = charHeight_ + y * charHeight_ + 4; |
560f8377 | 522 | painter.fillRect(cursorX, cursorY, 2, charHeight_, palette().color(QPalette::WindowText)); |
c7b76823 SA |
523 | } |
524 | } | |
525 | ||
526 | void QHexView::keyPressEvent(QKeyEvent *event) | |
527 | { | |
528 | bool setVisible = false; | |
529 | ||
560f8377 | 530 | // Cursor movements |
c7b76823 SA |
531 | if (event->matches(QKeySequence::MoveToNextChar)) { |
532 | setCursorPos(cursorPos_ + 1); | |
533 | resetSelection(cursorPos_); | |
534 | setVisible = true; | |
535 | } | |
536 | if (event->matches(QKeySequence::MoveToPreviousChar)) { | |
537 | setCursorPos(cursorPos_ - 1); | |
538 | resetSelection(cursorPos_); | |
539 | setVisible = true; | |
540 | } | |
541 | ||
542 | if (event->matches(QKeySequence::MoveToEndOfLine)) { | |
543 | setCursorPos(cursorPos_ | ((BYTES_PER_LINE * 2) - 1)); | |
544 | resetSelection(cursorPos_); | |
545 | setVisible = true; | |
546 | } | |
547 | if (event->matches(QKeySequence::MoveToStartOfLine)) { | |
548 | setCursorPos(cursorPos_ | (cursorPos_ % (BYTES_PER_LINE * 2))); | |
549 | resetSelection(cursorPos_); | |
550 | setVisible = true; | |
551 | } | |
552 | if (event->matches(QKeySequence::MoveToPreviousLine)) { | |
553 | setCursorPos(cursorPos_ - BYTES_PER_LINE * 2); | |
554 | resetSelection(cursorPos_); | |
555 | setVisible = true; | |
556 | } | |
557 | if (event->matches(QKeySequence::MoveToNextLine)) { | |
558 | setCursorPos(cursorPos_ + BYTES_PER_LINE * 2); | |
559 | resetSelection(cursorPos_); | |
560 | setVisible = true; | |
561 | } | |
562 | ||
563 | if (event->matches(QKeySequence::MoveToNextPage)) { | |
564 | setCursorPos(cursorPos_ + (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE); | |
565 | resetSelection(cursorPos_); | |
566 | setVisible = true; | |
567 | } | |
568 | if (event->matches(QKeySequence::MoveToPreviousPage)) { | |
569 | setCursorPos(cursorPos_ - (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE); | |
570 | resetSelection(cursorPos_); | |
571 | setVisible = true; | |
572 | } | |
573 | if (event->matches(QKeySequence::MoveToEndOfDocument)) { | |
628b45cc | 574 | setCursorPos(data_size_ * 2); |
c7b76823 SA |
575 | resetSelection(cursorPos_); |
576 | setVisible = true; | |
577 | } | |
578 | if (event->matches(QKeySequence::MoveToStartOfDocument)) { | |
579 | setCursorPos(0); | |
580 | resetSelection(cursorPos_); | |
581 | setVisible = true; | |
582 | } | |
583 | ||
560f8377 | 584 | // Select commands |
c7b76823 SA |
585 | if (event->matches(QKeySequence::SelectAll)) { |
586 | resetSelection(0); | |
628b45cc | 587 | setSelection(2 * data_size_); |
c7b76823 SA |
588 | setVisible = true; |
589 | } | |
590 | if (event->matches(QKeySequence::SelectNextChar)) { | |
591 | int pos = cursorPos_ + 1; | |
592 | setCursorPos(pos); | |
593 | setSelection(pos); | |
594 | setVisible = true; | |
595 | } | |
596 | if (event->matches(QKeySequence::SelectPreviousChar)) { | |
597 | int pos = cursorPos_ - 1; | |
598 | setSelection(pos); | |
599 | setCursorPos(pos); | |
600 | setVisible = true; | |
601 | } | |
602 | if (event->matches(QKeySequence::SelectEndOfLine)) { | |
603 | int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE); | |
604 | setCursorPos(pos); | |
605 | setSelection(pos); | |
606 | setVisible = true; | |
607 | } | |
608 | if (event->matches(QKeySequence::SelectStartOfLine)) { | |
609 | int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE)); | |
610 | setCursorPos(pos); | |
611 | setSelection(pos); | |
612 | setVisible = true; | |
613 | } | |
614 | if (event->matches(QKeySequence::SelectPreviousLine)) { | |
615 | int pos = cursorPos_ - (2 * BYTES_PER_LINE); | |
616 | setCursorPos(pos); | |
617 | setSelection(pos); | |
618 | setVisible = true; | |
619 | } | |
620 | if (event->matches(QKeySequence::SelectNextLine)) { | |
621 | int pos = cursorPos_ + (2 * BYTES_PER_LINE); | |
622 | setCursorPos(pos); | |
623 | setSelection(pos); | |
624 | setVisible = true; | |
625 | } | |
626 | ||
627 | if (event->matches(QKeySequence::SelectNextPage)) { | |
628 | int pos = cursorPos_ + (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE); | |
629 | setCursorPos(pos); | |
630 | setSelection(pos); | |
631 | setVisible = true; | |
632 | } | |
633 | if (event->matches(QKeySequence::SelectPreviousPage)) { | |
634 | int pos = cursorPos_ - (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE); | |
635 | setCursorPos(pos); | |
636 | setSelection(pos); | |
637 | setVisible = true; | |
638 | } | |
639 | if (event->matches(QKeySequence::SelectEndOfDocument)) { | |
628b45cc | 640 | int pos = data_size_ * 2; |
c7b76823 SA |
641 | setCursorPos(pos); |
642 | setSelection(pos); | |
643 | setVisible = true; | |
644 | } | |
645 | if (event->matches(QKeySequence::SelectStartOfDocument)) { | |
628b45cc SA |
646 | setCursorPos(0); |
647 | setSelection(0); | |
c7b76823 SA |
648 | setVisible = true; |
649 | } | |
650 | ||
01ba5ed7 | 651 | if (event->matches(QKeySequence::Copy) && (data_)) { |
c7b76823 | 652 | QString text; |
c7b76823 | 653 | |
628b45cc | 654 | initialize_byte_iterator(selectBegin_ / 2); |
c7b76823 | 655 | |
628b45cc SA |
656 | size_t selectedSize = (selectEnd_ - selectBegin_ + 1) / 2; |
657 | for (size_t i = 0; i < selectedSize; i++) { | |
658 | uint8_t byte_value = get_next_byte(); | |
659 | ||
660 | QString s = QString::number((byte_value & 0xF0) >> 4, 16).toUpper() + | |
661 | QString::number((byte_value & 0xF), 16).toUpper() + " "; | |
662 | text += s; | |
c7b76823 | 663 | |
628b45cc SA |
664 | if (i % BYTES_PER_LINE == (BYTES_PER_LINE - 1)) |
665 | text += "\n"; | |
c7b76823 SA |
666 | } |
667 | ||
668 | QClipboard *clipboard = QApplication::clipboard(); | |
628b45cc | 669 | clipboard->setText(text, QClipboard::Clipboard); |
c7b76823 | 670 | if (clipboard->supportsSelection()) |
628b45cc | 671 | clipboard->setText(text, QClipboard::Selection); |
c7b76823 SA |
672 | } |
673 | ||
674 | if (setVisible) | |
675 | ensureVisible(); | |
676 | ||
677 | viewport()->update(); | |
678 | } | |
679 | ||
680 | void QHexView::mouseMoveEvent(QMouseEvent *event) | |
681 | { | |
560f8377 | 682 | int actPos = cursorPosFromMousePos(event->pos()); |
c7b76823 SA |
683 | setCursorPos(actPos); |
684 | setSelection(actPos); | |
685 | ||
686 | viewport()->update(); | |
687 | } | |
688 | ||
689 | void QHexView::mousePressEvent(QMouseEvent *event) | |
690 | { | |
560f8377 | 691 | int cPos = cursorPosFromMousePos(event->pos()); |
c7b76823 SA |
692 | |
693 | if ((QApplication::keyboardModifiers() & Qt::ShiftModifier) && (event->button() == Qt::LeftButton)) | |
694 | setSelection(cPos); | |
695 | else | |
696 | resetSelection(cPos); | |
697 | ||
698 | setCursorPos(cPos); | |
699 | ||
700 | viewport()->update(); | |
701 | } | |
702 | ||
560f8377 | 703 | size_t QHexView::cursorPosFromMousePos(const QPoint &position) |
c7b76823 | 704 | { |
628b45cc | 705 | size_t pos = -1; |
c7b76823 SA |
706 | |
707 | if (((size_t)position.x() >= posHex_) && | |
708 | ((size_t)position.x() < (posHex_ + HEXCHARS_IN_LINE * charWidth_))) { | |
709 | ||
560f8377 SA |
710 | // Note: We add 1.5 character widths so that selection across |
711 | // byte gaps is smoother | |
628b45cc | 712 | size_t x = (position.x() + (1.5 * charWidth_ / 2) - posHex_) / charWidth_; |
c7b76823 | 713 | |
560f8377 SA |
714 | // Note: We allow only full bytes to be selected, not nibbles, |
715 | // so we round to the nearest byte gap | |
716 | x = (2 * x + 1) / 3; | |
c7b76823 | 717 | |
628b45cc | 718 | size_t firstLineIdx = verticalScrollBar()->value(); |
ee4ba097 | 719 | size_t y = ((position.y() / charHeight_) - 1) * 2 * BYTES_PER_LINE; |
c7b76823 SA |
720 | pos = x + y + firstLineIdx * BYTES_PER_LINE * 2; |
721 | } | |
722 | ||
628b45cc SA |
723 | size_t max_pos = data_size_ * 2; |
724 | ||
725 | return std::min(pos, max_pos); | |
c7b76823 SA |
726 | } |
727 | ||
728 | void QHexView::resetSelection() | |
729 | { | |
730 | selectBegin_ = selectInit_; | |
731 | selectEnd_ = selectInit_; | |
732 | } | |
733 | ||
734 | void QHexView::resetSelection(int pos) | |
735 | { | |
736 | if (pos < 0) | |
737 | pos = 0; | |
738 | ||
739 | selectInit_ = pos; | |
740 | selectBegin_ = pos; | |
741 | selectEnd_ = pos; | |
742 | } | |
743 | ||
744 | void QHexView::setSelection(int pos) | |
745 | { | |
746 | if (pos < 0) | |
747 | pos = 0; | |
748 | ||
749 | if ((size_t)pos >= selectInit_) { | |
750 | selectEnd_ = pos; | |
751 | selectBegin_ = selectInit_; | |
752 | } else { | |
753 | selectBegin_ = pos; | |
754 | selectEnd_ = selectInit_; | |
755 | } | |
756 | } | |
757 | ||
758 | void QHexView::setCursorPos(int position) | |
759 | { | |
760 | if (position < 0) | |
761 | position = 0; | |
762 | ||
628b45cc | 763 | int max_pos = data_size_ * 2; |
c7b76823 | 764 | |
628b45cc SA |
765 | if (position > max_pos) |
766 | position = max_pos; | |
c7b76823 SA |
767 | |
768 | cursorPos_ = position; | |
769 | } | |
770 | ||
771 | void QHexView::ensureVisible() | |
772 | { | |
773 | QSize areaSize = viewport()->size(); | |
774 | ||
628b45cc | 775 | int firstLineIdx = verticalScrollBar()->value(); |
c7b76823 SA |
776 | int lastLineIdx = firstLineIdx + areaSize.height() / charHeight_; |
777 | ||
778 | int cursorY = cursorPos_ / (2 * BYTES_PER_LINE); | |
779 | ||
780 | if (cursorY < firstLineIdx) | |
628b45cc SA |
781 | verticalScrollBar()->setValue(cursorY); |
782 | else | |
783 | if(cursorY >= lastLineIdx) | |
784 | verticalScrollBar()->setValue(cursorY - areaSize.height() / charHeight_ + 1); | |
c7b76823 | 785 | } |