1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
|
/************************************************************************
**
** Copyright (C) 2015-2024 Kevin B, Hendricks, Stratford Ontario Canada
** Copyright (C) 2012-2013 John Schember <john@nachtimwald.com>
** Copyright (C) 2012-2013 Dave Heiland
**
** This file is part of PageEdit.
**
** PageEdit is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** PageEdit is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with PageEdit. If not, see <http://www.gnu.org/licenses/>.
**
*************************************************************************/
#include <QApplication>
#include <QFileInfo>
#include <QEventLoop>
#include <QImage>
#include <QPixmap>
#include <QTimer>
#include <QtWidgets/QLayout>
#include <QtWebEngineWidgets>
#include <QtWebEngineCore>
#include <QWebEngineView>
#include <QWebEngineProfile>
#include <QWebEngineSettings>
#include "Utility.h"
#include "WebProfileMgr.h"
#include "SimplePage.h"
#include "SelectFiles.h"
#include "SettingsStore.h"
static const int COL_NAME = 0;
static const int COL_IMAGE = 1;
static const int THUMBNAIL_SIZE = 100;
static const int THUMBNAIL_SIZE_INCREMENT = 50;
static const QStringList KINDS = QStringList() << "image" << "svgimage" << "audio" << "video";
static QString SETTINGS_GROUP = "select_images";
const QString IMAGE_HTML_BASE_PREVIEW =
"<html>"
"<head>"
"<style type=\"text/css\">"
"body { -webkit-user-select: none; }"
"img { display: block; margin-left: auto; margin-right: auto; border-style: solid; border-width: 1px; max-width: 95%; max-height: 95%}"
"</style>"
"<body>"
"<div><img src=\"%1\" /></div>"
"</body>"
"</html>";
const QString AUDIO_HTML_BASE =
"<html>"
"<head>"
"<style type=\"text/css\">"
"body { -webkit-user-select: none; }"
"audio { display: block; margin-left: auto; margin-right: auto; }"
"</style>"
"<body>"
"<p><audio controls=\"controls\" src=\"%1\"></audio></p>"
"</body>"
"</html>";
const QString VIDEO_HTML_BASE =
"<html>"
"<head>"
"<style type=\"text/css\">"
"body { -webkit-user-select: none; }"
"video { display: block; margin-left: auto; margin-right: auto; }"
"</style>"
"<body>"
"<p><video controls=\"controls\" width=\"560\" src=\"%1\"></video></p>"
"</body>"
"</html>";
SelectFiles::SelectFiles(QString title,
const QStringList &medialist,
const QStringList &mediakind,
const QString &mediabase,
QWidget *parent) :
QDialog(parent),
m_MediaList(medialist),
m_MediaKind(mediakind),
m_MediaBase(mediabase),
m_SelectFilesModel(new QStandardItemModel),
m_PreviewReady(true),
m_PreviewLoaded(false),
m_ThumbnailSize(THUMBNAIL_SIZE),
m_ImageChangedTimer(new QTimer()),
m_WebView(new QWebEngineView(this))
{
ui.setupUi(this);
setWindowTitle(title);
QWebEngineProfile* profile = WebProfileMgr::instance()->GetOneTimeProfile();
m_WebView->setPage(new SimplePage(profile, m_WebView));
m_WebView->setContextMenuPolicy(Qt::NoContextMenu);
m_WebView->setAcceptDrops(false);
m_WebView->page()->settings()->setAttribute(QWebEngineSettings::ShowScrollBars,false);
ui.avLayout->addWidget(m_WebView);
ui.Details->setFocusPolicy(Qt::NoFocus);
m_WebView->setFocusPolicy(Qt::NoFocus);
ui.imageTree->setFocusPolicy(Qt::StrongFocus);
// set up ImageChangedTimer to absorb multiple selection
// changed signals since loading the WebView is slow
m_ImageChangedTimer->setSingleShot(true);
m_ImageChangedTimer->setInterval(20);
connect(m_ImageChangedTimer, SIGNAL(timeout()),this, SLOT(SetPreviewImage()));
m_ImageChangedTimer->stop();
ReadSettings();
m_AllItem = new QListWidgetItem(tr("All"), ui.FileTypes);
m_ImageItem = new QListWidgetItem(tr("Images"), ui.FileTypes);
m_VideoItem = new QListWidgetItem(tr("Video"), ui.FileTypes);
m_AudioItem = new QListWidgetItem(tr("Audio"), ui.FileTypes);
ui.FileTypes->setCurrentItem(m_AllItem);
SetImages();
connectSignalsSlots();
SetPreviewImage();
ui.imageTree->setFocus();
}
SelectFiles::~SelectFiles()
{
WriteSettings();
}
QStringList SelectFiles::SelectedImages()
{
QList<QString> selected_images;
// Shift-click order is top to bottom regardless of starting position
// Ctrl-click order is first clicked to last clicked (included shift-clicks stay ordered as is)
if (ui.imageTree->selectionModel()->hasSelection()) {
QModelIndexList selected_indexes = ui.imageTree->selectionModel()->selectedRows(0);
foreach(QModelIndex index, selected_indexes) {
selected_images.append(m_SelectFilesModel->itemFromIndex(index)->text());
}
}
return selected_images;
}
void SelectFiles::SetImages()
{
ui.Details->clear();
QString html = "<html><head><title></title></head><body></body></html>";
if (Utility::IsDarkMode()) {
html = Utility::AddDarkCSS(html);
}
m_WebView->setHtml(html, QUrl());
ui.imageTree->reset();
m_SelectFilesModel->clear();
QStringList header;
header.append(tr("Media Files In the Book"));
if (m_ThumbnailSize) {
header.append(tr("Thumbnails"));
}
m_SelectFilesModel->setHorizontalHeaderLabels(header);
ui.imageTree->setSelectionBehavior(QAbstractItemView::SelectRows);
ui.imageTree->setModel(m_SelectFilesModel);
QSize icon_size(m_ThumbnailSize, m_ThumbnailSize);
ui.imageTree->setIconSize(icon_size);
ui.imageTree->setSortingEnabled(true);
int row = 0;
int p = 0;
foreach(QString mediafile, m_MediaList) {
QString mediapath = m_MediaBase + mediafile;
QString mkind = m_MediaKind.at(p);
int atype = KINDS.indexOf(mkind);
// Don't show resources not matching the selected kind
if ((m_ImageItem->isSelected() && mkind != "image" && mkind != "svgimage") ||
(m_VideoItem->isSelected() && mkind != "video") ||
(m_AudioItem->isSelected() && mkind != "audio")) {
continue;
}
QList<QStandardItem *> rowItems;
QStandardItem *name_item = new QStandardItem();
name_item->setText(mediafile);
name_item->setToolTip(mediafile);
name_item->setData(static_cast<int>(atype), Qt::UserRole);
name_item->setData(mediapath, Qt::UserRole + 1);
name_item->setEditable(false);
rowItems << name_item;
// Do not show thumbnail if file is not an image
if ((mkind == "image" || mkind == "svgimage") && m_ThumbnailSize) {
QImage image;
if (mkind == "image") {
image.load(mediapath);
} else {
image = Utility::RenderSvgToImage(mediapath);
}
QPixmap pixmap = QPixmap::fromImage(image);
if (pixmap.height() > m_ThumbnailSize || pixmap.width() > m_ThumbnailSize) {
pixmap = pixmap.scaled(QSize(m_ThumbnailSize, m_ThumbnailSize), Qt::KeepAspectRatio);
}
QStandardItem *icon_item = new QStandardItem();
icon_item->setData(QVariant(pixmap), Qt::DecorationRole);
icon_item->setEditable(false);
rowItems << icon_item;
}
m_SelectFilesModel->appendRow(rowItems);
row++;
p++;
}
ui.imageTree->header()->setStretchLastSection(true);
for (int i = 0; i < ui.imageTree->header()->count(); i++) {
ui.imageTree->resizeColumnToContents(i);
}
// Sort by filename by default.
ui.imageTree->header()->setSortIndicator(0, Qt::AscendingOrder);
FilterEditTextChangedSlot(ui.Filter->text());
SelectDefaultImage();
}
void SelectFiles::SelectDefaultImage()
{
QStandardItem *root_item = m_SelectFilesModel->invisibleRootItem();
QModelIndex parent_index;
// Set the default to the first image if no default is set
if (m_DefaultSelectedImage.isEmpty() && root_item->rowCount() > 0) {
m_DefaultSelectedImage = m_SelectFilesModel->itemFromIndex(m_SelectFilesModel->index(0, 0, parent_index))->text();
}
for (int row = 0; row < root_item->rowCount(); row++) {
if (root_item->child(row, COL_NAME)->text() == m_DefaultSelectedImage) {
ui.imageTree->selectionModel()->select(m_SelectFilesModel->index(row, 0, parent_index), QItemSelectionModel::Select | QItemSelectionModel::Rows);
ui.imageTree->setFocus();
ui.imageTree->setCurrentIndex(root_item->child(row, 0)->index());
break;
}
}
}
void SelectFiles::IncreaseThumbnailSize()
{
m_ThumbnailSize += THUMBNAIL_SIZE_INCREMENT;
ui.ThumbnailDecrease->setEnabled(true);
m_DefaultSelectedImage = GetLastSelectedImageName();
SetImages();
}
void SelectFiles::DecreaseThumbnailSize()
{
m_ThumbnailSize -= THUMBNAIL_SIZE_INCREMENT;
if (m_ThumbnailSize <= 0) {
m_ThumbnailSize = 0;
ui.ThumbnailDecrease->setEnabled(false);
}
m_DefaultSelectedImage = GetLastSelectedImageName();
SetImages();
}
void SelectFiles::ReloadPreview()
{
// Make sure we don't load when initial painting is resizing
if (m_ImageChangedTimer->isActive()) m_ImageChangedTimer->stop();
m_ImageChangedTimer->start();
}
void SelectFiles::SelectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
{
ReloadPreview();
}
void SelectFiles::SplitterMoved(int pos, int index)
{
// ReloadPreview();
}
void SelectFiles::resizeEvent(QResizeEvent *event)
{
// ReloadPreview();
}
void SelectFiles::SetPreviewImage()
{
if (!m_PreviewReady) {
m_ImageChangedTimer->stop();
m_ImageChangedTimer->start();
return;
}
m_PreviewReady = false;
QPixmap pixmap;
QString details = "";
QStandardItem *item = GetLastSelectedImageItem();
ui.Details->clear();
QString html = "<html><head><title></title></head><body></body></html>";
if (Utility::IsDarkMode()) {
html = Utility::AddDarkCSS(html);
}
m_WebView->setHtml(html, QUrl());
if (!item || item->text().isEmpty()) {
m_PreviewReady = true;
return;
}
QString mkind = KINDS.at(item->data(Qt::UserRole).toInt());
// Basic file details
QString path = item->data(Qt::UserRole + 1).toString();
const QFileInfo fileInfo = QFileInfo(path);
const double ffsize = fileInfo.size() / 1024.0;
const QString fsize = QLocale().toString(ffsize, 'f', 2);
const double ffmbsize = ffsize / 1024.0;
const QString fmbsize = QLocale().toString(ffmbsize, 'f', 2);
// Images
if (mkind == "image" || mkind == "svgimage") {
// Define detailed information label
const QImage img(path);
const QUrl imgUrl = QUrl::fromLocalFile(path);
QString colors_shades = img.isGrayscale() ? tr("shades") : tr("colors");
QString grayscale_color = img.isGrayscale() ? tr("Grayscale") : tr("Color");
QString colorsInfo = "";
if (img.depth() == 32) {
colorsInfo = QString(" %1bpp").arg(img.bitPlaneCount());
} else if (img.depth() > 0) {
colorsInfo = QString(" %1bpp (%2 %3)").arg(img.bitPlaneCount()).arg(img.colorCount()).arg(colors_shades);
}
details = QString("%2x%3px | %4 KB | %5%6").arg(img.width()).arg(img.height())
.arg(fsize).arg(grayscale_color).arg(colorsInfo);
// MainWindow::clearMemoryCaches();
const QUrl resourceUrl = QUrl::fromLocalFile(path);
QString html = IMAGE_HTML_BASE_PREVIEW.arg(resourceUrl.toString());
if (Utility::IsDarkMode()) {
html = Utility::AddDarkCSS(html);
}
m_WebView->page()->setBackgroundColor(Utility::WebViewBackgroundColor());
m_PreviewLoaded = false;
m_WebView->setHtml(html, resourceUrl);
}
if (mkind == "video") {
QString html;
const QUrl resourceUrl = QUrl::fromLocalFile(path);
// MainWindow::clearMemoryCaches();
html = VIDEO_HTML_BASE.arg(resourceUrl.toString());
m_PreviewLoaded = false;
if (Utility::IsDarkMode()) {
html = Utility::AddDarkCSS(html);
}
m_WebView->page()->setBackgroundColor(Utility::WebViewBackgroundColor());
m_PreviewLoaded = false;
m_WebView->setHtml(html, resourceUrl);
details = QString("%1 MB").arg(fmbsize);
} else if (mkind == "audio") {
QString html;
const QUrl resourceUrl = QUrl::fromLocalFile(path);
// MainWindow::clearMemoryCaches();
html = AUDIO_HTML_BASE.arg(resourceUrl.toString());
if (Utility::IsDarkMode()) {
html = Utility::AddDarkCSS(html);
}
m_PreviewLoaded = false;
m_WebView->setHtml(html, resourceUrl);
details = QString("%1 MB").arg(fmbsize);
}
ui.Details->setText(details);
m_PreviewReady = true;
}
void SelectFiles::PreviewLoadComplete(bool okay)
{
if (!okay) {
m_WebView->stop();
}
m_PreviewLoaded = true;
m_PreviewReady = true;
}
bool SelectFiles::IsPreviewLoaded()
{
return m_PreviewLoaded;
}
void SelectFiles::FilterEditTextChangedSlot(const QString &text)
{
const QString lowercaseText = text.toLower();
QStandardItem *root_item = m_SelectFilesModel->invisibleRootItem();
QModelIndex parent_index;
// Hide rows that don't contain the filter text
int first_visible_row = -1;
for (int row = 0; row < root_item->rowCount(); row++) {
if (text.isEmpty() || root_item->child(row, COL_NAME)->text().toLower().contains(lowercaseText)) {
ui.imageTree->setRowHidden(row, parent_index, false);
if (first_visible_row == -1) {
first_visible_row = row;
}
} else {
ui.imageTree->setRowHidden(row, parent_index, true);
}
}
if (!text.isEmpty() && first_visible_row != -1) {
// Select the first non-hidden row
ui.imageTree->setCurrentIndex(root_item->child(first_visible_row, 0)->index());
} else {
// Clear current and selection, which clears preview image
ui.imageTree->setCurrentIndex(QModelIndex());
}
}
QStandardItem *SelectFiles::GetLastSelectedImageItem()
{
QStandardItem *item = NULL;
if (ui.imageTree->selectionModel()->hasSelection()) {
QModelIndexList selected_indexes = ui.imageTree->selectionModel()->selectedRows(0);
if (!selected_indexes.isEmpty()) {
item = m_SelectFilesModel->itemFromIndex(selected_indexes.last());
}
}
return item;
}
QString SelectFiles::GetLastSelectedImageName()
{
QString selected_entry = "";
QStandardItem *item = GetLastSelectedImageItem();
if (item) {
selected_entry = item->text();
}
return selected_entry;
}
void SelectFiles::ReadSettings()
{
SettingsStore settings;
settings.beginGroup(SETTINGS_GROUP);
// The size of the window and it's full screen status
QByteArray geometry = settings.value("geometry").toByteArray();
if (!geometry.isNull()) {
restoreGeometry(geometry);
}
// The position of the splitter handle
QByteArray splitter_position = settings.value("splitter").toByteArray();
if (!splitter_position.isNull()) {
ui.splitter->restoreState(splitter_position);
}
// The thumbnail size
m_ThumbnailSize = settings.value("thumbnail_size").toInt();
if (m_ThumbnailSize <= 0) {
ui.ThumbnailDecrease->setEnabled(false);
}
settings.endGroup();
}
void SelectFiles::WriteSettings()
{
SettingsStore settings;
settings.beginGroup(SETTINGS_GROUP);
// The size of the window and it's full screen status
settings.setValue("geometry", saveGeometry());
// The position of the splitter handle
settings.setValue("splitter", ui.splitter->saveState());
// The thumbnail size
settings.setValue("thumbnail_size", m_ThumbnailSize);
settings.endGroup();
}
void SelectFiles::connectSignalsSlots()
{
QItemSelectionModel *selectionModel = ui.imageTree->selectionModel();
connect(selectionModel, SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)),
this, SLOT(SelectionChanged(const QItemSelection &, const QItemSelection &)));
connect(ui.imageTree, SIGNAL(doubleClicked(const QModelIndex &)), this, SLOT(accept()));
connect(ui.Filter, SIGNAL(textChanged(QString)),
this, SLOT(FilterEditTextChangedSlot(QString)));
connect(ui.ThumbnailIncrease, SIGNAL(clicked()), this, SLOT(IncreaseThumbnailSize()));
connect(ui.ThumbnailDecrease, SIGNAL(clicked()), this, SLOT(DecreaseThumbnailSize()));
connect(ui.FileTypes, SIGNAL(itemSelectionChanged()), this, SLOT(SetImages()));
connect(m_WebView, SIGNAL(loadFinished(bool)), this, SLOT(PreviewLoadComplete(bool)));
connect(ui.splitter, SIGNAL(splitterMoved(int, int)), this, SLOT(SplitterMoved(int, int)));
}
|
