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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 | ||
30 | #include <QApplication> | |
31 | #include <QClipboard> | |
c8a6db0e | 32 | #include <QDebug> |
c7b76823 SA |
33 | #include <QFont> |
34 | #include <QKeyEvent> | |
35 | #include <QScrollBar> | |
36 | #include <QSize> | |
d5397ccb | 37 | #include <QString> |
c7b76823 SA |
38 | #include <QPainter> |
39 | #include <QPaintEvent> | |
40 | ||
41 | #include "QHexView.hpp" | |
42 | ||
560f8377 SA |
43 | const unsigned int BYTES_PER_LINE = 16; |
44 | const unsigned int HEXCHARS_IN_LINE = BYTES_PER_LINE * 3 - 1; | |
45 | const unsigned int GAP_ADR_HEX = 10; | |
46 | const unsigned int GAP_HEX_ASCII = 10; | |
47 | const unsigned int GAP_ASCII_SLIDER = 5; | |
c7b76823 | 48 | |
c7b76823 SA |
49 | |
50 | QHexView::QHexView(QWidget *parent): | |
560f8377 | 51 | QAbstractScrollArea(parent), |
628b45cc SA |
52 | mode_(ChunkedDataMode), |
53 | data_(nullptr), | |
54 | selectBegin_(0), | |
55 | selectEnd_(0), | |
56 | cursorPos_(0) | |
c7b76823 SA |
57 | { |
58 | setFont(QFont("Courier", 10)); | |
59 | ||
560f8377 | 60 | charWidth_ = fontMetrics().boundingRect('X').width(); |
c7b76823 SA |
61 | charHeight_ = fontMetrics().height(); |
62 | ||
c7b76823 | 63 | setFocusPolicy(Qt::StrongFocus); |
a61abf09 SA |
64 | |
65 | if (palette().color(QPalette::ButtonText).toHsv().value() > 127) { | |
66 | // Color is bright | |
67 | chunk_colors_.emplace_back(100, 149, 237); // QColorConstants::Svg::cornflowerblue | |
68 | chunk_colors_.emplace_back(60, 179, 113); // QColorConstants::Svg::mediumseagreen | |
69 | chunk_colors_.emplace_back(210, 180, 140); // QColorConstants::Svg::tan | |
70 | } else { | |
71 | // Color is dark | |
72 | chunk_colors_.emplace_back(0, 0, 139); // QColorConstants::Svg::darkblue | |
73 | chunk_colors_.emplace_back(34, 139, 34); // QColorConstants::Svg::forestgreen | |
74 | chunk_colors_.emplace_back(160, 82, 45); // QColorConstants::Svg::sienna | |
75 | } | |
c7b76823 SA |
76 | } |
77 | ||
d5645564 | 78 | void QHexView::set_mode(Mode m) |
c7b76823 | 79 | { |
628b45cc SA |
80 | mode_ = m; |
81 | ||
82 | // This is not expected to be set when data is showing, | |
83 | // so we don't update the viewport here | |
84 | } | |
c7b76823 | 85 | |
d5645564 | 86 | void QHexView::set_data(const DecodeBinaryClass* data) |
628b45cc | 87 | { |
01ba5ed7 | 88 | data_ = data; |
628b45cc | 89 | |
c8a6db0e | 90 | size_t size = 0; |
ee4ba097 SA |
91 | if (data) { |
92 | size_t chunks = data_->chunks.size(); | |
93 | for (size_t i = 0; i < chunks; i++) | |
94 | size += data_->chunks[i].data.size(); | |
95 | } | |
c8a6db0e | 96 | data_size_ = size; |
628b45cc | 97 | |
d5397ccb SA |
98 | address_digits_ = (uint8_t)QString::number(data_size_, 16).length(); |
99 | ||
100 | // Calculate X coordinates of the three sub-areas | |
101 | posAddr_ = 0; | |
102 | posHex_ = address_digits_ * charWidth_ + GAP_ADR_HEX; | |
103 | posAscii_ = posHex_ + HEXCHARS_IN_LINE * charWidth_ + GAP_HEX_ASCII; | |
104 | ||
628b45cc SA |
105 | viewport()->update(); |
106 | } | |
107 | ||
d5645564 SA |
108 | unsigned int QHexView::get_bytes_per_line() const |
109 | { | |
110 | return BYTES_PER_LINE; | |
111 | } | |
112 | ||
628b45cc SA |
113 | void QHexView::clear() |
114 | { | |
115 | verticalScrollBar()->setValue(0); | |
116 | data_ = nullptr; | |
117 | data_size_ = 0; | |
b2b18d3a SA |
118 | |
119 | viewport()->update(); | |
c7b76823 SA |
120 | } |
121 | ||
122 | void QHexView::showFromOffset(size_t offset) | |
123 | { | |
628b45cc | 124 | if (data_ && (offset < data_size_)) { |
c7b76823 SA |
125 | setCursorPos(offset * 2); |
126 | ||
127 | int cursorY = cursorPos_ / (2 * BYTES_PER_LINE); | |
128 | verticalScrollBar() -> setValue(cursorY); | |
129 | } | |
4b97fe09 SA |
130 | |
131 | viewport()->update(); | |
c7b76823 SA |
132 | } |
133 | ||
6961eab0 SA |
134 | QSizePolicy QHexView::sizePolicy() const |
135 | { | |
136 | return QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding); | |
137 | } | |
138 | ||
13b726cd SA |
139 | pair<size_t, size_t> QHexView::get_selection() const |
140 | { | |
141 | size_t start = selectBegin_ / 2; | |
142 | size_t end = selectEnd_ / 2; | |
143 | ||
144 | if (start == end) { | |
145 | // Nothing is currently selected | |
146 | start = 0; | |
147 | end = data_size_; | |
e094bcb2 | 148 | } if (end < data_size_) |
13b726cd SA |
149 | end++; |
150 | ||
151 | return std::make_pair(start, end); | |
152 | } | |
153 | ||
d5645564 SA |
154 | size_t QHexView::create_hex_line(size_t start, size_t end, QString* dest, |
155 | bool with_offset, bool with_ascii) | |
156 | { | |
157 | dest->clear(); | |
158 | ||
159 | // Determine start address for the row | |
160 | uint64_t row = start / BYTES_PER_LINE; | |
161 | uint64_t offset = row * BYTES_PER_LINE; | |
b6d0bcb8 | 162 | end = std::min((uint64_t)end, offset + BYTES_PER_LINE); |
d5645564 SA |
163 | |
164 | if (with_offset) | |
d5397ccb | 165 | dest->append(QString("%1 ").arg(row * BYTES_PER_LINE, address_digits_, 16, QChar('0')).toUpper()); |
d5645564 SA |
166 | |
167 | initialize_byte_iterator(offset); | |
168 | for (size_t i = offset; i < offset + BYTES_PER_LINE; i++) { | |
169 | uint8_t value = 0; | |
170 | ||
171 | if (i < end) | |
172 | value = get_next_byte(); | |
173 | ||
174 | if ((i < start) || (i >= end)) | |
175 | dest->append(" "); | |
176 | else | |
177 | dest->append(QString("%1 ").arg(value, 2, 16, QChar('0')).toUpper()); | |
178 | } | |
179 | ||
180 | if (with_ascii) { | |
181 | initialize_byte_iterator(offset); | |
182 | for (size_t i = offset; i < end; i++) { | |
183 | uint8_t value = get_next_byte(); | |
184 | ||
5cdf186d SA |
185 | if ((value < 0x20) || (value > 0x7E)) |
186 | value = '.'; | |
187 | ||
d5645564 SA |
188 | if (i < start) |
189 | dest->append(' '); | |
190 | else | |
191 | dest->append((char)value); | |
192 | } | |
193 | } | |
194 | ||
195 | return end; | |
196 | } | |
197 | ||
628b45cc | 198 | void QHexView::initialize_byte_iterator(size_t offset) |
c7b76823 | 199 | { |
628b45cc SA |
200 | current_chunk_id_ = 0; |
201 | current_chunk_offset_ = 0; | |
cbf428c2 | 202 | current_offset_ = offset; |
628b45cc | 203 | |
c8a6db0e SA |
204 | size_t chunks = data_->chunks.size(); |
205 | for (size_t i = 0; i < chunks; i++) { | |
206 | size_t size = data_->chunks[i].data.size(); | |
207 | ||
208 | if (offset >= size) { | |
628b45cc | 209 | current_chunk_id_++; |
c8a6db0e | 210 | offset -= size; |
628b45cc SA |
211 | } else { |
212 | current_chunk_offset_ = offset; | |
213 | break; | |
214 | } | |
c8a6db0e | 215 | } |
4b97fe09 | 216 | |
c8a6db0e SA |
217 | if (current_chunk_id_ < data_->chunks.size()) |
218 | current_chunk_ = data_->chunks[current_chunk_id_]; | |
628b45cc SA |
219 | } |
220 | ||
221 | uint8_t QHexView::get_next_byte(bool* is_next_chunk) | |
222 | { | |
223 | if (is_next_chunk != nullptr) | |
224 | *is_next_chunk = (current_chunk_offset_ == 0); | |
225 | ||
c8a6db0e SA |
226 | uint8_t v = 0; |
227 | if (current_chunk_offset_ < current_chunk_.data.size()) | |
228 | v = current_chunk_.data[current_chunk_offset_]; | |
628b45cc | 229 | |
cbf428c2 | 230 | current_offset_++; |
628b45cc | 231 | current_chunk_offset_++; |
cbf428c2 | 232 | |
c8a6db0e SA |
233 | if (current_offset_ > data_size_) { |
234 | qWarning() << "QHexView::get_next_byte() overran binary data boundary:" << | |
235 | current_offset_ << "of" << data_size_ << "bytes"; | |
236 | return 0xEE; | |
237 | } | |
238 | ||
239 | if ((current_chunk_offset_ == current_chunk_.data.size()) && (current_offset_ < data_size_)) { | |
628b45cc SA |
240 | current_chunk_id_++; |
241 | current_chunk_offset_ = 0; | |
516d2128 | 242 | current_chunk_ = data_->chunks[current_chunk_id_]; |
628b45cc SA |
243 | } |
244 | ||
245 | return v; | |
c7b76823 SA |
246 | } |
247 | ||
560f8377 | 248 | QSize QHexView::getFullSize() const |
c7b76823 | 249 | { |
fae7037a | 250 | size_t width = posAscii_ + (BYTES_PER_LINE * charWidth_); |
560f8377 | 251 | |
fae7037a SA |
252 | if (verticalScrollBar()->isEnabled()) |
253 | width += GAP_ASCII_SLIDER + verticalScrollBar()->width(); | |
254 | ||
255 | if (!data_ || (data_size_ == 0)) | |
01ba5ed7 | 256 | return QSize(width, 0); |
560f8377 | 257 | |
628b45cc | 258 | size_t height = data_size_ / BYTES_PER_LINE; |
01ba5ed7 | 259 | |
628b45cc | 260 | if (data_size_ % BYTES_PER_LINE) |
c7b76823 SA |
261 | height++; |
262 | ||
263 | height *= charHeight_; | |
264 | ||
265 | return QSize(width, height); | |
266 | } | |
267 | ||
268 | void QHexView::paintEvent(QPaintEvent *event) | |
269 | { | |
c7b76823 SA |
270 | QPainter painter(viewport()); |
271 | ||
560f8377 | 272 | // Calculate and update the widget and paint area sizes |
560f8377 SA |
273 | QSize widgetSize = getFullSize(); |
274 | setMinimumWidth(widgetSize.width()); | |
275 | setMaximumWidth(widgetSize.width()); | |
ee4ba097 | 276 | QSize areaSize = viewport()->size() - QSize(0, charHeight_); |
560f8377 | 277 | |
fae7037a SA |
278 | // Only show scrollbar if the content goes beyond the visible area |
279 | if (widgetSize.height() > areaSize.height()) { | |
280 | verticalScrollBar()->setEnabled(true); | |
281 | verticalScrollBar()->setPageStep(areaSize.height() / charHeight_); | |
282 | verticalScrollBar()->setRange(0, ((widgetSize.height() - areaSize.height())) / charHeight_ + 1); | |
283 | } else | |
284 | verticalScrollBar()->setEnabled(false); | |
c7b76823 | 285 | |
01ba5ed7 SA |
286 | // Fill widget background |
287 | painter.fillRect(event->rect(), palette().color(QPalette::Base)); | |
288 | ||
ff49e70c | 289 | if (!data_ || (data_size_ == 0) || (data_->chunks.empty())) { |
01ba5ed7 SA |
290 | painter.setPen(palette().color(QPalette::Text)); |
291 | QString s = tr("No data available"); | |
292 | int x = (areaSize.width() - fontMetrics().boundingRect(s).width()) / 2; | |
293 | int y = areaSize.height() / 2; | |
294 | painter.drawText(x, y, s); | |
295 | return; | |
296 | } | |
297 | ||
298 | // Determine first/last line indices | |
c7b76823 SA |
299 | size_t firstLineIdx = verticalScrollBar()->value(); |
300 | ||
ee4ba097 | 301 | size_t lastLineIdx = firstLineIdx + (areaSize.height() / charHeight_); |
628b45cc SA |
302 | if (lastLineIdx > (data_size_ / BYTES_PER_LINE)) { |
303 | lastLineIdx = data_size_ / BYTES_PER_LINE; | |
304 | if (data_size_ % BYTES_PER_LINE) | |
c7b76823 SA |
305 | lastLineIdx++; |
306 | } | |
307 | ||
560f8377 SA |
308 | // Paint divider line between hex and ASCII areas |
309 | int line_x = posAscii_ - (GAP_HEX_ASCII / 2); | |
310 | painter.setPen(palette().color(QPalette::Midlight)); | |
311 | painter.drawLine(line_x, event->rect().top(), line_x, height()); | |
c7b76823 | 312 | |
48b168aa SA |
313 | // Fill address area background |
314 | painter.fillRect(QRect(posAddr_, event->rect().top(), | |
315 | posHex_ - (GAP_ADR_HEX / 2), height()), palette().color(QPalette::Window)); | |
316 | painter.fillRect(QRect(posAddr_, event->rect().top(), | |
317 | posAscii_ - (GAP_HEX_ASCII / 2), charHeight_ + 2), palette().color(QPalette::Window)); | |
318 | ||
560f8377 SA |
319 | // Paint address area |
320 | painter.setPen(palette().color(QPalette::ButtonText)); | |
c7b76823 | 321 | |
ee4ba097 | 322 | int yStart = 2 * charHeight_; |
560f8377 | 323 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
c7b76823 | 324 | |
d5397ccb | 325 | QString address = QString("%1").arg(lineIdx * 16, address_digits_, 16, QChar('0')).toUpper(); |
560f8377 SA |
326 | painter.drawText(posAddr_, y, address); |
327 | y += charHeight_; | |
328 | } | |
c7b76823 | 329 | |
ee4ba097 SA |
330 | // Paint top row with hex offsets |
331 | painter.setPen(palette().color(QPalette::ButtonText)); | |
332 | for (int offset = 0; offset <= 0xF; offset++) | |
333 | painter.drawText(posHex_ + (1 + offset * 3) * charWidth_, | |
48b168aa | 334 | charHeight_ - 3, QString::number(offset, 16).toUpper()); |
ee4ba097 | 335 | |
560f8377 | 336 | // Paint hex values |
a61abf09 SA |
337 | QBrush regular = palette().buttonText(); |
338 | QBrush selected = palette().highlight(); | |
339 | ||
340 | bool multiple_chunks = (data_->chunks.size() > 1); | |
341 | unsigned int chunk_color = 0; | |
c7b76823 | 342 | |
628b45cc | 343 | initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE); |
ee4ba097 | 344 | yStart = 2 * charHeight_; |
560f8377 SA |
345 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
346 | ||
560f8377 | 347 | int x = posHex_; |
cbf428c2 | 348 | for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) { |
c7b76823 | 349 | size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2; |
c7b76823 | 350 | |
a61abf09 SA |
351 | // Fetch byte |
352 | bool is_next_chunk; | |
353 | uint8_t byte_value = get_next_byte(&is_next_chunk); | |
354 | ||
355 | if (is_next_chunk) { | |
356 | chunk_color++; | |
357 | if (chunk_color == chunk_colors_.size()) | |
358 | chunk_color = 0; | |
359 | } | |
360 | ||
560f8377 | 361 | if ((pos >= selectBegin_) && (pos < selectEnd_)) { |
a61abf09 | 362 | painter.setBackgroundMode(Qt::OpaqueMode); |
c7b76823 | 363 | painter.setBackground(selected); |
560f8377 | 364 | painter.setPen(palette().color(QPalette::HighlightedText)); |
c7b76823 | 365 | } else { |
560f8377 | 366 | painter.setBackground(regular); |
a61abf09 SA |
367 | painter.setBackgroundMode(Qt::TransparentMode); |
368 | if (!multiple_chunks) | |
369 | painter.setPen(palette().color(QPalette::Text)); | |
370 | else | |
371 | painter.setPen(chunk_colors_[chunk_color]); | |
c7b76823 SA |
372 | } |
373 | ||
560f8377 | 374 | // First nibble |
628b45cc | 375 | QString val = QString::number((byte_value & 0xF0) >> 4, 16).toUpper(); |
560f8377 | 376 | painter.drawText(x, y, val); |
c7b76823 | 377 | |
560f8377 | 378 | // Second nibble |
628b45cc | 379 | val = QString::number((byte_value & 0xF), 16).toUpper(); |
560f8377 | 380 | painter.drawText(x + charWidth_, y, val); |
c7b76823 | 381 | |
a7af8bb0 SA |
382 | if ((pos >= selectBegin_) && (pos < selectEnd_ - 1) && (i < BYTES_PER_LINE - 1)) |
383 | painter.drawText(x + 2 * charWidth_, y, QString(' ')); | |
384 | ||
560f8377 | 385 | x += 3 * charWidth_; |
c7b76823 SA |
386 | } |
387 | ||
560f8377 SA |
388 | y += charHeight_; |
389 | } | |
390 | ||
391 | // Paint ASCII characters | |
628b45cc | 392 | initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE); |
ee4ba097 | 393 | yStart = 2 * charHeight_; |
560f8377 SA |
394 | for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) { |
395 | ||
396 | int x = posAscii_; | |
cbf428c2 | 397 | for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) { |
628b45cc SA |
398 | // Fetch byte |
399 | uint8_t ch = get_next_byte(); | |
c7b76823 | 400 | |
560f8377 | 401 | if ((ch < 0x20) || (ch > 0x7E)) |
c7b76823 SA |
402 | ch = '.'; |
403 | ||
560f8377 SA |
404 | size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2; |
405 | if ((pos >= selectBegin_) && (pos < selectEnd_)) { | |
a61abf09 | 406 | painter.setBackgroundMode(Qt::OpaqueMode); |
560f8377 SA |
407 | painter.setBackground(selected); |
408 | painter.setPen(palette().color(QPalette::HighlightedText)); | |
409 | } else { | |
a61abf09 | 410 | painter.setBackgroundMode(Qt::TransparentMode); |
560f8377 SA |
411 | painter.setBackground(regular); |
412 | painter.setPen(palette().color(QPalette::Text)); | |
413 | } | |
414 | ||
415 | painter.drawText(x, y, QString(ch)); | |
416 | x += charWidth_; | |
c7b76823 SA |
417 | } |
418 | ||
560f8377 | 419 | y += charHeight_; |
c7b76823 SA |
420 | } |
421 | ||
560f8377 | 422 | // Paint cursor |
c7b76823 SA |
423 | if (hasFocus()) { |
424 | int x = (cursorPos_ % (2 * BYTES_PER_LINE)); | |
425 | int y = cursorPos_ / (2 * BYTES_PER_LINE); | |
426 | y -= firstLineIdx; | |
427 | int cursorX = (((x / 2) * 3) + (x % 2)) * charWidth_ + posHex_; | |
ee4ba097 | 428 | int cursorY = charHeight_ + y * charHeight_ + 4; |
560f8377 | 429 | painter.fillRect(cursorX, cursorY, 2, charHeight_, palette().color(QPalette::WindowText)); |
c7b76823 SA |
430 | } |
431 | } | |
432 | ||
433 | void QHexView::keyPressEvent(QKeyEvent *event) | |
434 | { | |
435 | bool setVisible = false; | |
436 | ||
560f8377 | 437 | // Cursor movements |
c7b76823 SA |
438 | if (event->matches(QKeySequence::MoveToNextChar)) { |
439 | setCursorPos(cursorPos_ + 1); | |
440 | resetSelection(cursorPos_); | |
441 | setVisible = true; | |
442 | } | |
443 | if (event->matches(QKeySequence::MoveToPreviousChar)) { | |
444 | setCursorPos(cursorPos_ - 1); | |
445 | resetSelection(cursorPos_); | |
446 | setVisible = true; | |
447 | } | |
448 | ||
449 | if (event->matches(QKeySequence::MoveToEndOfLine)) { | |
450 | setCursorPos(cursorPos_ | ((BYTES_PER_LINE * 2) - 1)); | |
451 | resetSelection(cursorPos_); | |
452 | setVisible = true; | |
453 | } | |
454 | if (event->matches(QKeySequence::MoveToStartOfLine)) { | |
455 | setCursorPos(cursorPos_ | (cursorPos_ % (BYTES_PER_LINE * 2))); | |
456 | resetSelection(cursorPos_); | |
457 | setVisible = true; | |
458 | } | |
459 | if (event->matches(QKeySequence::MoveToPreviousLine)) { | |
460 | setCursorPos(cursorPos_ - BYTES_PER_LINE * 2); | |
461 | resetSelection(cursorPos_); | |
462 | setVisible = true; | |
463 | } | |
464 | if (event->matches(QKeySequence::MoveToNextLine)) { | |
465 | setCursorPos(cursorPos_ + BYTES_PER_LINE * 2); | |
466 | resetSelection(cursorPos_); | |
467 | setVisible = true; | |
468 | } | |
469 | ||
470 | if (event->matches(QKeySequence::MoveToNextPage)) { | |
471 | setCursorPos(cursorPos_ + (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE); | |
472 | resetSelection(cursorPos_); | |
473 | setVisible = true; | |
474 | } | |
475 | if (event->matches(QKeySequence::MoveToPreviousPage)) { | |
476 | setCursorPos(cursorPos_ - (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE); | |
477 | resetSelection(cursorPos_); | |
478 | setVisible = true; | |
479 | } | |
480 | if (event->matches(QKeySequence::MoveToEndOfDocument)) { | |
628b45cc | 481 | setCursorPos(data_size_ * 2); |
c7b76823 SA |
482 | resetSelection(cursorPos_); |
483 | setVisible = true; | |
484 | } | |
485 | if (event->matches(QKeySequence::MoveToStartOfDocument)) { | |
486 | setCursorPos(0); | |
487 | resetSelection(cursorPos_); | |
488 | setVisible = true; | |
489 | } | |
490 | ||
560f8377 | 491 | // Select commands |
c7b76823 SA |
492 | if (event->matches(QKeySequence::SelectAll)) { |
493 | resetSelection(0); | |
628b45cc | 494 | setSelection(2 * data_size_); |
c7b76823 SA |
495 | setVisible = true; |
496 | } | |
497 | if (event->matches(QKeySequence::SelectNextChar)) { | |
498 | int pos = cursorPos_ + 1; | |
499 | setCursorPos(pos); | |
500 | setSelection(pos); | |
501 | setVisible = true; | |
502 | } | |
503 | if (event->matches(QKeySequence::SelectPreviousChar)) { | |
504 | int pos = cursorPos_ - 1; | |
505 | setSelection(pos); | |
506 | setCursorPos(pos); | |
507 | setVisible = true; | |
508 | } | |
509 | if (event->matches(QKeySequence::SelectEndOfLine)) { | |
510 | int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE); | |
511 | setCursorPos(pos); | |
512 | setSelection(pos); | |
513 | setVisible = true; | |
514 | } | |
515 | if (event->matches(QKeySequence::SelectStartOfLine)) { | |
516 | int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE)); | |
517 | setCursorPos(pos); | |
518 | setSelection(pos); | |
519 | setVisible = true; | |
520 | } | |
521 | if (event->matches(QKeySequence::SelectPreviousLine)) { | |
522 | int pos = cursorPos_ - (2 * BYTES_PER_LINE); | |
523 | setCursorPos(pos); | |
524 | setSelection(pos); | |
525 | setVisible = true; | |
526 | } | |
527 | if (event->matches(QKeySequence::SelectNextLine)) { | |
528 | int pos = cursorPos_ + (2 * BYTES_PER_LINE); | |
529 | setCursorPos(pos); | |
530 | setSelection(pos); | |
531 | setVisible = true; | |
532 | } | |
533 | ||
534 | if (event->matches(QKeySequence::SelectNextPage)) { | |
535 | int pos = cursorPos_ + (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE); | |
536 | setCursorPos(pos); | |
537 | setSelection(pos); | |
538 | setVisible = true; | |
539 | } | |
540 | if (event->matches(QKeySequence::SelectPreviousPage)) { | |
541 | int pos = cursorPos_ - (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE); | |
542 | setCursorPos(pos); | |
543 | setSelection(pos); | |
544 | setVisible = true; | |
545 | } | |
546 | if (event->matches(QKeySequence::SelectEndOfDocument)) { | |
628b45cc | 547 | int pos = data_size_ * 2; |
c7b76823 SA |
548 | setCursorPos(pos); |
549 | setSelection(pos); | |
550 | setVisible = true; | |
551 | } | |
552 | if (event->matches(QKeySequence::SelectStartOfDocument)) { | |
628b45cc SA |
553 | setCursorPos(0); |
554 | setSelection(0); | |
c7b76823 SA |
555 | setVisible = true; |
556 | } | |
557 | ||
01ba5ed7 | 558 | if (event->matches(QKeySequence::Copy) && (data_)) { |
c7b76823 | 559 | QString text; |
c7b76823 | 560 | |
628b45cc | 561 | initialize_byte_iterator(selectBegin_ / 2); |
c7b76823 | 562 | |
628b45cc SA |
563 | size_t selectedSize = (selectEnd_ - selectBegin_ + 1) / 2; |
564 | for (size_t i = 0; i < selectedSize; i++) { | |
565 | uint8_t byte_value = get_next_byte(); | |
566 | ||
567 | QString s = QString::number((byte_value & 0xF0) >> 4, 16).toUpper() + | |
568 | QString::number((byte_value & 0xF), 16).toUpper() + " "; | |
569 | text += s; | |
c7b76823 | 570 | |
628b45cc SA |
571 | if (i % BYTES_PER_LINE == (BYTES_PER_LINE - 1)) |
572 | text += "\n"; | |
c7b76823 SA |
573 | } |
574 | ||
575 | QClipboard *clipboard = QApplication::clipboard(); | |
628b45cc | 576 | clipboard->setText(text, QClipboard::Clipboard); |
c7b76823 | 577 | if (clipboard->supportsSelection()) |
628b45cc | 578 | clipboard->setText(text, QClipboard::Selection); |
c7b76823 SA |
579 | } |
580 | ||
581 | if (setVisible) | |
582 | ensureVisible(); | |
583 | ||
584 | viewport()->update(); | |
585 | } | |
586 | ||
587 | void QHexView::mouseMoveEvent(QMouseEvent *event) | |
588 | { | |
560f8377 | 589 | int actPos = cursorPosFromMousePos(event->pos()); |
c7b76823 SA |
590 | setCursorPos(actPos); |
591 | setSelection(actPos); | |
592 | ||
593 | viewport()->update(); | |
594 | } | |
595 | ||
596 | void QHexView::mousePressEvent(QMouseEvent *event) | |
597 | { | |
560f8377 | 598 | int cPos = cursorPosFromMousePos(event->pos()); |
c7b76823 SA |
599 | |
600 | if ((QApplication::keyboardModifiers() & Qt::ShiftModifier) && (event->button() == Qt::LeftButton)) | |
601 | setSelection(cPos); | |
602 | else | |
603 | resetSelection(cPos); | |
604 | ||
605 | setCursorPos(cPos); | |
606 | ||
607 | viewport()->update(); | |
608 | } | |
609 | ||
560f8377 | 610 | size_t QHexView::cursorPosFromMousePos(const QPoint &position) |
c7b76823 | 611 | { |
628b45cc | 612 | size_t pos = -1; |
c7b76823 SA |
613 | |
614 | if (((size_t)position.x() >= posHex_) && | |
615 | ((size_t)position.x() < (posHex_ + HEXCHARS_IN_LINE * charWidth_))) { | |
616 | ||
560f8377 SA |
617 | // Note: We add 1.5 character widths so that selection across |
618 | // byte gaps is smoother | |
628b45cc | 619 | size_t x = (position.x() + (1.5 * charWidth_ / 2) - posHex_) / charWidth_; |
c7b76823 | 620 | |
560f8377 SA |
621 | // Note: We allow only full bytes to be selected, not nibbles, |
622 | // so we round to the nearest byte gap | |
623 | x = (2 * x + 1) / 3; | |
c7b76823 | 624 | |
628b45cc | 625 | size_t firstLineIdx = verticalScrollBar()->value(); |
ee4ba097 | 626 | size_t y = ((position.y() / charHeight_) - 1) * 2 * BYTES_PER_LINE; |
c7b76823 SA |
627 | pos = x + y + firstLineIdx * BYTES_PER_LINE * 2; |
628 | } | |
629 | ||
628b45cc SA |
630 | size_t max_pos = data_size_ * 2; |
631 | ||
632 | return std::min(pos, max_pos); | |
c7b76823 SA |
633 | } |
634 | ||
635 | void QHexView::resetSelection() | |
636 | { | |
637 | selectBegin_ = selectInit_; | |
638 | selectEnd_ = selectInit_; | |
639 | } | |
640 | ||
641 | void QHexView::resetSelection(int pos) | |
642 | { | |
643 | if (pos < 0) | |
644 | pos = 0; | |
645 | ||
646 | selectInit_ = pos; | |
647 | selectBegin_ = pos; | |
648 | selectEnd_ = pos; | |
649 | } | |
650 | ||
651 | void QHexView::setSelection(int pos) | |
652 | { | |
653 | if (pos < 0) | |
654 | pos = 0; | |
655 | ||
656 | if ((size_t)pos >= selectInit_) { | |
657 | selectEnd_ = pos; | |
658 | selectBegin_ = selectInit_; | |
659 | } else { | |
660 | selectBegin_ = pos; | |
661 | selectEnd_ = selectInit_; | |
662 | } | |
663 | } | |
664 | ||
665 | void QHexView::setCursorPos(int position) | |
666 | { | |
667 | if (position < 0) | |
668 | position = 0; | |
669 | ||
628b45cc | 670 | int max_pos = data_size_ * 2; |
c7b76823 | 671 | |
628b45cc SA |
672 | if (position > max_pos) |
673 | position = max_pos; | |
c7b76823 SA |
674 | |
675 | cursorPos_ = position; | |
676 | } | |
677 | ||
678 | void QHexView::ensureVisible() | |
679 | { | |
680 | QSize areaSize = viewport()->size(); | |
681 | ||
628b45cc | 682 | int firstLineIdx = verticalScrollBar()->value(); |
c7b76823 SA |
683 | int lastLineIdx = firstLineIdx + areaSize.height() / charHeight_; |
684 | ||
685 | int cursorY = cursorPos_ / (2 * BYTES_PER_LINE); | |
686 | ||
687 | if (cursorY < firstLineIdx) | |
628b45cc SA |
688 | verticalScrollBar()->setValue(cursorY); |
689 | else | |
690 | if(cursorY >= lastLineIdx) | |
691 | verticalScrollBar()->setValue(cursorY - areaSize.height() / charHeight_ + 1); | |
c7b76823 | 692 | } |