/** \fn GalleryWidget::HandleFadeTransition()
* \brief Handles the fading between two images
* \return void
*/
void GalleryWidget::HandleFadeTransition()
{
int index = (m_index == 0) ? 1 : 0;
// Fade out the old image if its loaded. This will not be done when
// called for the first time because there is no object at this index
if (m_fileDataList->at(index))
m_fileList->at(index)->AdjustAlpha(1, (m_transitionTime * -1), 0, 255);
// Fade in the new image and if the next
// file is a video then start playing it
if (m_fileDataList->at(m_index))
{
m_fileList->at(m_index)->AdjustAlpha(1, m_transitionTime, 0, 255);
if (m_fileDataList->at(m_index)->m_type == kVideoFile)
{
if (m_fileDataList->at(index))
m_fileList->at(index)->SetAlpha(0);
PauseSlideShow();
GetMythMainWindow()->HandleMedia("Internal",
m_fileDataList->at(m_index)->m_fileName);
}
}
}
static void StartCalibration(HBROWSER_HANDLE hbrowser, HDOC_HANDLE hdoc, HELEMENT_HANDLE helem)
{
timer_running = 1;
per_cent_complete = 0;
PauseSlideShow();
UpdateCalibrationScreen(hbrowser, helem, hdoc, per_cent_complete);
CalibrateRearmTimer(hbrowser, helem, 0);
}
/** \fn GalleryWidget::ShowRandomFile()
* \brief Loads a random image
* \return void
*/
void GalleryWidget::ShowRandomFile()
{
volatile bool exit = false;
int size = m_gvh->m_currentNode->getSelectedChild()->siblingCount();
int counter = 0;
int position = 0;
MythGenericTree *node = NULL;
ImageMetadata *im = NULL;
PauseSlideShow();
// Get a random node from the list. If its not an image or
// video continue and try to get a new one until its an image
// or all siblings have been checked.
if (size > 0)
{
while (!exit)
{
position = (qrand() % size);
counter++;
node = m_gvh->m_currentNode->getChildAt(position);
im = m_gvh->GetImageMetadataFromNode(node);
if ((im && (im->m_type == kImageFile ||
im->m_type == kVideoFile)) || counter == size)
exit = true;
}
// If we have data then is is already an image or
// video. This has been checked in the while loop
if (im)
{
m_gvh->m_currentNode->setSelectedChild(node);
LoadFile();
}
}
else
{
QString msg = "There are no images in the current directory.";
ShowInformation(msg);
}
}
/** \fn GalleryView::MenuMain()
* \brief Shows a dialog popup with the main menu
* \return void
*/
void GalleryWidget::MenuMain()
{
// Create the main menu that will contain the submenus above
MythMenu *menu = new MythMenu(tr("Image Information"), this, "mainmenu");
// If no slideshow type was given show the item to start it
// otherwise show the items to stop or resume a slideshow.
if (m_slideShowType == kNoSlideShow)
{
menu->AddItem(tr("Start Normal SlideShow"),
SLOT(StartNormalSlideShow()));
menu->AddItem(tr("Start Random SlideShow"),
SLOT(StartRandomSlideShow()));
}
else
{
if (m_timer->isActive())
menu->AddItem(tr("Pause SlideShow"), SLOT(PauseSlideShow()));
else
{
if (m_slideShowType == kNormalSlideShow)
menu->AddItem(tr("Resume SlideShow"),
SLOT(StartNormalSlideShow()));
if (m_slideShowType == kRandomSlideShow)
menu->AddItem(tr("Resume SlideShow"),
SLOT(StartRandomSlideShow()));
}
}
MenuMetadata(menu);
menu->AddItem(tr("Show Details"), SLOT(FileDetails()));
m_menuPopup = new MythDialogBox(menu, m_popupStack, "menuPopup");
if (!m_menuPopup->Create())
{
delete m_menuPopup;
m_menuPopup = NULL;
return;
}
m_popupStack->AddScreen(m_menuPopup);
}
/** \fn GalleryWidget::ShowNextFile()
* \brief Loads the next image file if possible
* \return void
*/
void GalleryWidget::ShowNextFile()
{
PauseSlideShow();
MythGenericTree *node = m_gvh->m_currentNode->getSelectedChild()->nextSibling(1);
ImageMetadata *im = m_gvh->GetImageMetadataFromNode(node);
// If a data object exists then a node must also exist
if (im && (im->m_type == kImageFile ||
im->m_type == kVideoFile))
{
m_gvh->m_currentNode->setSelectedChild(node);
LoadFile();
}
else
{
QString msg = "You have reached the end of the gallery.";
ShowInformation(msg);
}
}
/** \fn GalleryWidget::LoadFile()
* \brief Stops any slideshow and loads the file
* from disk or memory in the background.
* \return void
*/
void GalleryWidget::LoadFile()
{
// Pause the slideshow so that the timer can't fire
// until the image loading thread has finished
PauseSlideShow();
// Switch the index
m_index = (m_index == 0) ? 1 : 0;
// Load the new data into the new index, this will be
// the new image which will be shown in the foreground
m_fileDataList->replace(m_index, m_gvh->GetImageMetadataFromSelectedNode());
if (m_fileDataList->at(m_index))
{
// Show an information that
// the image is being loaded
if (m_status)
m_status->SetVisible(true);
m_fileList->at(m_index)->SetAlpha(0);
// Get the full path and name of the image
// or if its a video the first preview image
QString fileName = m_fileDataList->at(m_index)->m_fileName;
if (m_fileDataList->at(m_index)->m_type == kVideoFile)
fileName = m_fileDataList->at(m_index)->m_thumbFileNameList->at(0);
QString url = CreateImageUrl(fileName);
// This thread will loads the image so the UI is not blocked.
m_ilt->setImage(m_fileList->at(m_index),
m_fileDataList->at(m_index), url);
m_ilt->start();
}
}
/** \fn GalleryWidget::keyPressEvent(QKeyEvent *)
* \brief Translates the keypresses and keys bound to the
* plugin to specific actions within the plugin
* \param event The pressed key
* \return True if key was used, otherwise false
*/
bool GalleryWidget::keyPressEvent(QKeyEvent *event)
{
if (GetFocusWidget()->keyPressEvent(event))
return true;
bool handled = false;
QStringList actions;
handled = GetMythMainWindow()->TranslateKeyPress("Images", event, actions);
for (int i = 0; i < actions.size() && !handled; i++)
{
QString action = actions[i];
handled = true;
if (action == "LEFT")
ShowPrevFile();
else if (action == "RIGHT")
ShowNextFile();
else if (action == "INFO")
ShowFileDetails();
else if (action == "MENU")
MenuMain();
else if (action == "PLAY")
{
// If no slideshow is active and the user presses the play
// button then start a normal slideshow. But if a slideshow
// is already running then start or pause it.
if (m_slideShowType == kNoSlideShow)
StartNormalSlideShow();
else
{
if (m_timer->isActive())
PauseSlideShow();
else
ResumeSlideShow();
}
}
else if (action == "PAUSE")
PauseSlideShow();
else if (action == "STOP")
StopSlideShow();
else if (action == "ROTRIGHT")
{
m_gvh->SetFileOrientation(kFileRotateCW);
LoadFile();
}
else if (action == "ROTLEFT")
{
m_gvh->SetFileOrientation(kFileRotateCCW);
LoadFile();
}
else if (action == "FLIPHORIZONTAL")
{
m_gvh->SetFileOrientation(kFileFlipHorizontal);
LoadFile();
}
else if (action == "FLIPVERTICAL")
{
m_gvh->SetFileOrientation(kFileFlipVertical);
LoadFile();
}
else if (action == "ZOOMIN")
{
m_gvh->SetFileZoom(kFileZoomIn);
LoadFile();
}
else if (action == "ZOOMOUT")
{
m_gvh->SetFileZoom(kFileZoomOut);
LoadFile();
}
else if (action == "ESCAPE")
{
if (m_infoVisible)
HideFileDetails();
else
handled = false;
}
}
if (!handled && MythScreenType::keyPressEvent(event))
handled = true;
return handled;
}
