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SoundShaderPreview.cpp
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SoundShaderPreview.cpp
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#include "SoundShaderPreview.h"
#include "i18n.h"
#include "isound.h"
#include "itextstream.h"
#include <iostream>
#include <cstdlib>
#include <fmt/format.h>
#include "wxutil/Bitmap.h"
#include <wx/stattext.h>
#include <wx/button.h>
#include <wx/sizer.h>
#include "ui/UserInterfaceModule.h"
namespace ui
{
namespace
{
inline std::string getDurationString(float durationInSeconds)
{
return fmt::format("{0:0.2f}s", durationInSeconds);
}
}
SoundShaderPreview::SoundShaderPreview(wxWindow* parent) :
wxPanel(parent, wxID_ANY),
_listStore(new wxutil::TreeModel(_columns, true)),
_soundShader(""),
_isShuttingDown(false)
{
SetSizer(new wxBoxSizer(wxHORIZONTAL));
_treeView = wxutil::TreeView::CreateWithModel(this, _listStore.get());
_treeView->SetMinClientSize(wxSize(-1, 130));
_treeView->AppendTextColumn(_("Sound Files"), _columns.soundFile.getColumnIndex(),
wxDATAVIEW_CELL_INERT, wxCOL_WIDTH_AUTOSIZE, wxALIGN_NOT, wxDATAVIEW_COL_SORTABLE);
_treeView->AppendTextColumn(_("Duration"), _columns.duration.getColumnIndex(),
wxDATAVIEW_CELL_INERT, wxCOL_WIDTH_AUTOSIZE, wxALIGN_NOT, wxDATAVIEW_COL_SORTABLE);
// Connect the "changed" signal
_treeView->Bind(wxEVT_DATAVIEW_SELECTION_CHANGED, &SoundShaderPreview::onSelectionChanged, this);
_treeView->Bind(wxEVT_DATAVIEW_ITEM_ACTIVATED, &SoundShaderPreview::onItemActivated, this);
GetSizer()->Add(_treeView, 1, wxEXPAND);
GetSizer()->Add(createControlPanel(this), 0, wxALIGN_BOTTOM | wxLEFT, 12);
// Attach to the close event
Bind(wxEVT_DESTROY, [&](wxWindowDestroyEvent& ev)
{
GlobalSoundManager().stopSound();
ev.Skip();
});
// Trigger the initial update of the widgets
update();
}
SoundShaderPreview::~SoundShaderPreview()
{
_isShuttingDown = true;
_durationQueries.clear();
}
wxSizer* SoundShaderPreview::createControlPanel(wxWindow* parent)
{
wxBoxSizer* vbox = new wxBoxSizer(wxVERTICAL);
// Create the playback button
_playButton = new wxButton(parent, wxID_ANY, _("Play"));
_playButton->SetBitmap(wxutil::GetLocalBitmap("media-playback-start-ltr.png"));
_playLoopedButton = new wxButton(parent, wxID_ANY, _("Play and loop"));
_playLoopedButton->SetBitmap(wxutil::GetLocalBitmap("loop.png"));
_stopButton = new wxButton(parent, wxID_ANY, _("Stop"));
_stopButton->SetBitmap(wxutil::GetLocalBitmap("media-playback-stop.png"));
_playButton->Bind(wxEVT_BUTTON, &SoundShaderPreview::onPlay, this);
_playLoopedButton->Bind(wxEVT_BUTTON, &SoundShaderPreview::onPlayLooped, this);
_stopButton->Bind(wxEVT_BUTTON, &SoundShaderPreview::onStop, this);
_playButton->SetMinSize(wxSize(120, -1));
_playLoopedButton->SetMinSize(wxSize(120, -1));
_stopButton->SetMinSize(wxSize(120, -1));
_statusLabel = new wxStaticText(parent, wxID_ANY, "");
_statusLabel->Wrap(100);
vbox->Add(_statusLabel, 0, wxEXPAND | wxBOTTOM, 12);
vbox->Add(_playButton, 0, wxBOTTOM, 6);
vbox->Add(_playLoopedButton, 0, wxBOTTOM, 6);
vbox->Add(_stopButton, 0);
return vbox;
}
void SoundShaderPreview::ClearPreview()
{
SetPreviewDeclName({});
}
void SoundShaderPreview::SetPreviewDeclName(const std::string& declName)
{
_soundShader = declName;
update();
}
void SoundShaderPreview::playRandomSoundFile()
{
if (_soundShader.empty() || !_listStore) return;
// Select a random file from the list
wxDataViewItemArray children;
unsigned int numFiles = _listStore->GetChildren(_listStore->GetRoot(), children);
if (numFiles > 0)
{
static int nextFileToPlay = 0;
int selected = nextFileToPlay++ % numFiles;
_treeView->Select(children[selected]);
handleSelectionChange();
playSelectedFile(false);
}
}
void SoundShaderPreview::update()
{
// Clear the current treeview model
_listStore->Clear();
_durationQueries.clearPendingTasks();
// If the soundshader string is empty, desensitise the widgets
Enable(!_soundShader.empty());
if (!_soundShader.empty())
{
// We have a sound shader, update the liststore
// Get the list of sound files associated to this shader
const auto& shader = GlobalSoundManager().getSoundShader(_soundShader);
if (!shader->getDeclName().empty())
{
// Retrieve the list of associated filenames (VFS paths)
auto list = shader->getSoundFileList();
for (std::size_t i = 0; i < list.size(); ++i)
{
auto row = _listStore->AddItem();
const auto& soundFile = list[i];
row[_columns.soundFile] = soundFile;
row[_columns.duration] = getDurationOrPlaceholder(soundFile);
row.SendItemAdded();
// Pre-select the first sound file, for the user's convenience
if (i == 0)
{
_treeView->Select(row.getItem());
}
}
handleSelectionChange();
}
else
{
// Not a valid soundshader, switch to inactive
Enable(false);
}
}
else
{
GlobalSoundManager().stopSound();
}
}
std::string SoundShaderPreview::getSelectedSoundFile()
{
wxDataViewItem item = _treeView->GetSelection();
if (item.IsOk())
{
wxutil::TreeModel::Row row(item, *_listStore);
return row[_columns.soundFile];
}
else
{
return "";
}
}
void SoundShaderPreview::onSelectionChanged(wxDataViewEvent& ev)
{
handleSelectionChange();
}
void SoundShaderPreview::onItemActivated(wxDataViewEvent& ev)
{
playSelectedFile(false);
}
void SoundShaderPreview::handleSelectionChange()
{
std::string selectedFile = getSelectedSoundFile();
// Set the sensitivity of the playbutton accordingly
_playButton->Enable(!selectedFile.empty());
_playLoopedButton->Enable(!selectedFile.empty());
}
void SoundShaderPreview::onPlay(wxCommandEvent& ev)
{
playSelectedFile(false);
}
void SoundShaderPreview::onPlayLooped(wxCommandEvent& ev)
{
playSelectedFile(true);
}
void SoundShaderPreview::playSelectedFile(bool loop)
{
_statusLabel->SetLabel("");
std::string selectedFile = getSelectedSoundFile();
if (!selectedFile.empty())
{
// Pass the call to the sound manager
if (!GlobalSoundManager().playSound(selectedFile, loop))
{
_statusLabel->SetLabel(_("Error: File not found."));
}
}
}
void SoundShaderPreview::onStop(wxCommandEvent& ev)
{
// Pass the call to the sound manager
GlobalSoundManager().stopSound();
_statusLabel->SetLabel("");
}
std::string SoundShaderPreview::getDurationOrPlaceholder(const std::string& soundFile)
{
{
std::lock_guard<std::mutex> lock(_durationsLock);
auto found = _durations.find(soundFile);
if (found != _durations.end())
{
return getDurationString(found->second);
}
}
// No duration known yet, queue a task
loadFileDurationAsync(soundFile);
return "--:--";
}
void SoundShaderPreview::loadFileDurationAsync(const std::string& soundFile)
{
_durationQueries.enqueue([this, soundFile] // copy strings into lambda
{
try
{
// In case the duration has been calculated in the meantime
// check if there's still need for this task to run
float duration = -1.0f;
{
std::lock_guard<std::mutex> lock(_durationsLock);
auto existing = _durations.find(soundFile);
if (existing != _durations.end())
{
duration = existing->second;
}
}
if (duration < 0)
{
// Duration still unknown, run the query
duration = GlobalSoundManager().getSoundFileDuration(soundFile);
// Store the duration in the local cache
std::lock_guard<std::mutex> lock(_durationsLock);
_durations[soundFile] = duration;
}
if (_isShuttingDown)
{
// Don't dispatch anything if we're shutting down
return;
}
// Dispatch to UI thread when we're done
GetUserInterfaceModule().dispatch([this, soundFile, duration]()
{
// Load into treeview
auto item = _listStore->FindString(soundFile, _columns.soundFile);
if (item.IsOk())
{
wxutil::TreeModel::Row row(item, *_listStore);
row[_columns.duration] = getDurationString(duration);
row.SendItemChanged();
}
});
}
catch (const std::out_of_range& ex)
{
rError() << "Cannot query sound file duration of " << soundFile
<< ": " << ex.what() << std::endl;
}
});
}
} // namespace ui