1 /***************************************************************************
2 stopmotion.cpp - description
5 copyright : (C) 2010 by Jean-Baptiste Mardelle
6 email : jb@kdenlive.org
7 ***************************************************************************/
9 /***************************************************************************
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 ***************************************************************************/
18 #include "stopmotion.h"
19 #include "../blackmagic/devices.h"
20 #include "../slideshowclip.h"
21 #include "kdenlivesettings.h"
25 #include <KGlobalSettings>
26 #include <KFileDialog>
27 #include <KStandardDirs>
28 #include <KMessageBox>
29 #include <kdeversion.h>
30 #include <KNotification>
32 #include <QInputDialog>
34 #include <QVBoxLayout>
38 #include <QWheelEvent>
40 MyLabel::MyLabel(QWidget *parent) :
45 void MyLabel::setImage(QImage img)
51 void MyLabel::wheelEvent(QWheelEvent * event)
53 if (event->delta() > 0) emit seek(true);
54 else emit seek(false);
58 void MyLabel::paintEvent( QPaintEvent * event)
62 QRect r(0, 0, width(), height());
64 p.fillRect(r, QColor(KdenliveSettings::window_background()));
65 double aspect_ratio = (double) m_img.width() / m_img.height();
66 int pictureHeight = height();
67 int pictureWidth = width();
68 int calculatedWidth = aspect_ratio * height();
69 if (calculatedWidth > width()) pictureHeight = width() / aspect_ratio;
71 int calculatedHeight = width() / aspect_ratio;
72 if (calculatedHeight > height()) pictureWidth = height() * aspect_ratio;
74 p.drawImage(QRect((width() - pictureWidth) / 2, (height() - pictureHeight) / 2, pictureWidth, pictureHeight), m_img, QRect(0, 0, m_img.width(), m_img.height()));
79 StopmotionWidget::StopmotionWidget(KUrl projectFolder, QWidget *parent) :
82 , m_projectFolder(projectFolder)
87 setWindowTitle(i18n("Stop Motion Capture"));
88 setFont(KGlobalSettings::toolBarFont());
90 live_button->setIcon(KIcon("camera-photo"));
91 frameoverlay_button->setIcon(KIcon("edit-paste"));
92 m_captureAction = new QAction(KIcon("media-record"), i18n("Capture frame"), this);
93 m_captureAction->setShortcut(QKeySequence(Qt::Key_Space));
94 connect(m_captureAction, SIGNAL(triggered()), this, SLOT(slotCaptureFrame()));
95 capture_button->setDefaultAction(m_captureAction);
97 preview_button->setIcon(KIcon("media-playback-start"));
98 removelast_button->setIcon(KIcon("edit-delete"));
99 frameoverlay_button->setEnabled(false);
100 removelast_button->setEnabled(false);
101 capture_button->setEnabled(false);
103 connect(sequence_name, SIGNAL(textChanged(const QString &)), this, SLOT(sequenceNameChanged(const QString &)));
104 BMInterface::getBlackMagicDeviceList(capture_device, NULL);
105 QVBoxLayout *lay = new QVBoxLayout;
106 m_bmCapture = new CaptureHandler(lay);
107 m_frame_preview = new MyLabel(this);
108 connect(m_frame_preview, SIGNAL(seek(bool)), this, SLOT(slotSeekFrame(bool)));
109 lay->addWidget(m_frame_preview);
110 m_frame_preview->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
111 video_preview->setLayout(lay);
112 live_button->setChecked(false);
113 frameoverlay_button->setChecked(false);
114 button_addsequence->setEnabled(false);
115 connect(live_button, SIGNAL(clicked(bool)), this, SLOT(slotLive(bool)));
116 connect(frameoverlay_button, SIGNAL(clicked(bool)), this, SLOT(slotShowOverlay(bool)));
117 connect(frame_number, SIGNAL(valueChanged(int)), this, SLOT(slotShowFrame(int)));
118 connect(button_addsequence, SIGNAL(clicked(bool)), this, SLOT(slotAddSequence()));
119 connect(preview_button, SIGNAL(clicked(bool)), this, SLOT(slotPlayPreview()));
120 connect(frame_list, SIGNAL(currentRowChanged(int)), this, SLOT(slotShowSelectedFrame()));
123 parseExistingSequences();
126 StopmotionWidget::~StopmotionWidget()
128 m_bmCapture->stopPreview();
131 void StopmotionWidget::parseExistingSequences()
133 sequence_name->clear();
134 sequence_name->addItem(QString());
135 QDir dir(m_projectFolder.path());
137 filters << "*_0000.png";
138 //dir.setNameFilters(filters);
139 QStringList sequences = dir.entryList(filters, QDir::Files, QDir::Name);
140 //kDebug()<<"PF: "<<<<", sm: "<<sequences;
141 foreach(QString sequencename, sequences) {
142 sequence_name->addItem(sequencename.section("_", 0, -2));
146 void StopmotionWidget::slotLive(bool isOn)
149 m_frame_preview->setImage(QImage());
150 m_frame_preview->setHidden(true);
151 m_bmCapture->startPreview(KdenliveSettings::hdmicapturedevice(), KdenliveSettings::hdmicapturemode());
152 capture_button->setEnabled(true);
155 m_bmCapture->stopPreview();
156 capture_button->setEnabled(false);
160 void StopmotionWidget::slotShowOverlay(bool isOn)
163 if (live_button->isChecked() && m_sequenceFrame > 0) {
168 m_bmCapture->hideOverlay();
172 void StopmotionWidget::slotUpdateOverlay()
174 QString path = getPathForFrame(m_sequenceFrame - 1);
175 if (!QFile::exists(path)) return;
178 QTimer::singleShot(1000, this, SLOT(slotUpdateOverlay()));
181 m_bmCapture->showOverlay(img);
184 void StopmotionWidget::sequenceNameChanged(const QString &name)
187 if (name.isEmpty()) {
188 button_addsequence->setEnabled(false);
189 frame_number->blockSignals(true);
190 frame_number->setValue(m_sequenceFrame);
191 frame_number->blockSignals(false);
192 frameoverlay_button->setEnabled(false);
193 removelast_button->setEnabled(false);
196 // Check if we are editing an existing sequence
198 QString pattern = SlideshowClip::selectedPath(getPathForFrame(0, sequence_name->currentText()), false, QString(), &count);
199 m_sequenceFrame = count;
201 m_sequenceName = sequence_name->currentText();
202 //TODO: Do the thumbnail stuff in a thread
203 for (int i = 0; i < count; i++) {
204 slotUpdateFrameList(i);
206 button_addsequence->setEnabled(true);
207 frameoverlay_button->setEnabled(true);
210 button_addsequence->setEnabled(false);
211 frameoverlay_button->setEnabled(false);
213 frame_number->setRange(0, m_sequenceFrame);
214 frame_number->blockSignals(true);
215 frame_number->setValue(m_sequenceFrame);
216 frame_number->blockSignals(false);
217 capture_button->setEnabled(true);
221 void StopmotionWidget::slotCaptureFrame()
223 if (sequence_name->currentText().isEmpty()) {
224 QString seqName = QInputDialog::getText(this, i18n("Create New Sequence"), i18n("Enter sequence name"));
225 if (seqName.isEmpty()) return;
226 sequence_name->blockSignals(true);
227 sequence_name->setItemText(sequence_name->currentIndex(), seqName);
228 sequence_name->blockSignals(false);
230 if (m_sequenceName != sequence_name->currentText()) {
231 m_sequenceName = sequence_name->currentText();
234 capture_button->setEnabled(false);
235 m_bmCapture->captureFrame(getPathForFrame(m_sequenceFrame));
236 KNotification::event("FrameCaptured");
237 frameoverlay_button->setEnabled(true);
239 frame_number->setRange(0, m_sequenceFrame);
240 frame_number->blockSignals(true);
241 frame_number->setValue(m_sequenceFrame);
242 frame_number->blockSignals(false);
243 button_addsequence->setEnabled(true);
244 //if (frameoverlay_button->isChecked()) QTimer::singleShot(1000, this, SLOT(slotUpdateOverlay()));
245 QTimer::singleShot(1000, this, SLOT(slotUpdateFrameList()));
248 void StopmotionWidget::slotUpdateFrameList(int ix)
250 kDebug()<< "// GET FRAME: "<<ix;
251 if (ix == -1) ix = m_sequenceFrame - 1;
252 QString path = getPathForFrame(ix);
253 if (!QFile::exists(path)) {
254 capture_button->setEnabled(true);
259 if (ix == m_sequenceFrame - 1) QTimer::singleShot(1000, this, SLOT(slotUpdateFrameList()));
263 int width = height * img.width() / img.height();
264 frame_list->setIconSize(QSize(width, height));
265 QPixmap pix = QPixmap::fromImage(img).scaled(width, height);
266 QString nb = QString::number(ix);
268 QFontInfo finfo(font());
269 p.fillRect(0, 0, finfo.pixelSize() * nb.count() + 6, finfo.pixelSize() + 6, QColor(0, 0, 0, 150));
271 p.drawText(QPoint(3, finfo.pixelSize() + 3), nb);
274 QListWidgetItem *item = new QListWidgetItem(icon, QString(), frame_list);
275 item->setData(Qt::UserRole, path);
276 item->setData(Qt::UserRole + 1, ix);
277 item->setToolTip(path);
278 capture_button->setEnabled(true);
281 QString StopmotionWidget::getPathForFrame(int ix, QString seqName)
283 if (seqName.isEmpty()) seqName = m_sequenceName;
284 return m_projectFolder.path(KUrl::AddTrailingSlash) + seqName + "_" + QString::number(ix).rightJustified(4, '0', false) + ".png";
287 void StopmotionWidget::slotShowFrame(int ix)
289 if (m_sequenceFrame == 0) {
290 //there are no images in sequence
293 frameoverlay_button->blockSignals(true);
294 frameoverlay_button->setChecked(false);
295 frameoverlay_button->blockSignals(false);
296 if (ix < m_sequenceFrame) {
297 // Show previous frame
299 live_button->setChecked(false);
300 QImage img(getPathForFrame(ix));
301 capture_button->setEnabled(false);
303 //m_bmCapture->showOverlay(img, false);
304 m_bmCapture->hidePreview(true);
305 m_frame_preview->setImage(img);
306 m_frame_preview->setHidden(false);
307 m_frame_preview->update();
313 m_frame_preview->setImage(QImage());
314 m_frame_preview->setHidden(true);
315 m_bmCapture->hideOverlay();
316 m_bmCapture->hidePreview(false);
317 capture_button->setEnabled(true);
321 void StopmotionWidget::slotShowSelectedFrame()
323 QListWidgetItem *item = frame_list->currentItem();
325 int ix = item->data(Qt::UserRole + 1).toInt();
326 //frame_number->blockSignals(true);
327 frame_number->setValue(ix);
328 //frame_number->blockSignals(false);
333 void StopmotionWidget::slotAddSequence()
335 emit addOrUpdateSequence(getPathForFrame(0));
338 void StopmotionWidget::slotPlayPreview()
340 if (m_animatedIndex != -1) {
342 m_animatedIndex = -1;
345 QListWidgetItem *item = frame_list->currentItem();
347 m_animatedIndex = item->data(Qt::UserRole + 1).toInt();
349 QTimer::singleShot(200, this, SLOT(slotAnimate()));
352 void StopmotionWidget::slotAnimate()
354 slotShowFrame(m_animatedIndex);
356 if (m_animatedIndex < m_sequenceFrame) QTimer::singleShot(200, this, SLOT(slotAnimate()));
357 else m_animatedIndex = -1;
360 void StopmotionWidget::selectFrame(int ix)
362 frame_list->blockSignals(true);
363 QListWidgetItem *item = frame_list->item(ix);
364 int current = item->data(Qt::UserRole + 1).toInt();
366 frame_list->setCurrentItem(item);
368 else if (current < ix) {
369 for (int i = ix; i < frame_list->count(); i++) {
370 item = frame_list->item(i);
371 current = item->data(Qt::UserRole + 1).toInt();
373 frame_list->setCurrentItem(item);
379 for (int i = ix; i >= 0; i--) {
380 item = frame_list->item(i);
381 current = item->data(Qt::UserRole + 1).toInt();
383 frame_list->setCurrentItem(item);
388 frame_list->blockSignals(false);
391 void StopmotionWidget::slotSeekFrame(bool forward)
393 int ix = frame_list->currentRow();
395 if (ix < frame_list->count() - 1) frame_list->setCurrentRow(ix + 1);
397 else if (ix > 0) frame_list->setCurrentRow(ix - 1);