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I get a path to a sound file in plugingui. ok:
if (pControl->getTag() == 11) //openFile
{
if (pControl->getValueNormalized() == 1) {
CNewFileSelector* selector = CNewFileSelector::create(getFrame(), CNewFileSelector::kSelectFile);
if (selector)
{
selector->addFileExtension(CFileExtension("WAVE", "wav", "audio/wav"));
selector->setDefaultExtension(CFileExtension("WAVE", "wav"));
selector->setTitle("Choose An Audio File");
selector->run(this);
char WaveFile[250]; // to be defined elsewhere
strcpy(WaveFile, selector->getSelectedFile(0));
selector->forget();
}
}
return;
}
But how do I pass this path to plugincore?
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You will need to use a custom view to pass the string back.
There is no plugin API that supports a single string being passed as a plugin parameter via the normal method, but you can always use a custom view to make that work.
One of the admins here (Jim) has done this already as he was trying to figure out the same issue, but I think he is on a hiatus right now.
Will
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You mean with moodycamel::ReaderWriterQueue I can grab the string?
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If you look in the ASPiK demo custom views project there is a custom view called CustomKnobView.
Among other things, it shows how to query a control and receive a message back from it.
void CustomKnobView::sendMessage(void* data)
{
CustomViewMessage* viewMessage = (CustomViewMessage*)data;
// --- example of messaging: plugin core send message, we acknowledge
if (viewMessage->message == MESSAGE_QUERY_CONTROL)
{
if (viewMessage->queryString.compare("Hello There!") == 0)
{
viewMessage->replyString.assign("I'm Here!!");
viewMessage->messageData = this; // <– example of VERY risky thing to do; not recommended
}
}
// --->> CustomViewMessage has =operator
dataQueue->enqueue(*viewMessage);
}
Will
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Hi Will.
I managed to get the path of the file and enqueued it. But where do I dequeue it on the other side? The dequeue routines are not present.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
CustomKickButton::CustomKickButton(const VSTGUI::CRect& size, IControlListener* listener, int32_t tag, CBitmap* background, const CPoint& offset)
: CKickButton(size, listener, tag, background, offset)
{
dataQueue = new moodycamel::ReaderWriterQueue<CustomViewMessage, 256>; ///< lock-free queue for incoming data, sized to 256 in length
}
CMouseEventResult CustomKickButton::onMouseDown(CPoint& where, const CButtonState& buttons)
{
//Marc
CNewFileSelector* selector = CNewFileSelector::create(getFrame(), CNewFileSelector::kSelectFile);
if (selector)
{
//selector->addFileExtension(CFileExtension("AIFF", "aif", "audio/aiff"));
//selector->addFileExtension(CFileExtension("AIFF", "aiff", "audio/aiff"));
selector->addFileExtension(CFileExtension("WAVE", "wav", "audio/wav"));
selector->setDefaultExtension(CFileExtension("WAVE", "wav"));
selector->setTitle("Choose An Audio File");
selector->runModal();
if (selector->getSelectedFile(0))
{
strcpy(WaveFile, selector->getSelectedFile(0));
newFile = true;
}
else {
strcpy(WaveFile, "");
newFile = false;
}
selector->forget();
}
return onMouseMoved(where, buttons);
}
void CustomKickButton::sendMessage(void* data)
{
CustomViewMessage* viewMessage;
if (newFile) {
newFile = false;
viewMessage->replyString.assign(WaveFile);
dataQueue->enqueue(*viewMessage);
}
}
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De-queueing is done in the PluginCore::processMessage( ) method. This is detailed in the ASPiK documentation:
http://aspikplugins.com/sdkdoc.....ner11.html
http://aspikplugins.com/sdkdoc.....l/cv9.html
http://aspikplugins.com/sdkdoc.....l/cv8.html
The Demo Custom View project's PluginCore::processMessage( ) shows exactly how to do this with the custom knob control. It is in both the "With FFT" and "Without FFT" projects in the ASPiK SDK's samples/ folder.
if (messageInfo.inMessageString.compare("CustomKnobView") == 0)
{
// --- (1) get the custom view interface via incoming message data*
if (knobView != static_cast<ICustomView*>(messageInfo.inMessageData))
knobView = static_cast<ICustomView*>(messageInfo.inMessageData);
if (!knobView) return false;
// --- send the view a message
VSTGUI::CustomViewMessage knobMessage;
knobMessage.message = VSTGUI::MESSAGE_QUERY_CONTROL;
knobMessage.queryString.assign("Hello There!");
// --- send the message
knobView->sendMessage(&knobMessage);
// --- check the reply string; the messgageData variable contains a pointer to the object (DANGEROUS)
const char* reply = knobMessage.replyString.c_str();
printf("%s", reply);
// --- DO NOT DO THIS!!! (but it is possible)
//CAnimKnob* customKnob = static_cast<CAnimKnob*>(knobMessage.messageData);
// --- registered!
return true;
}
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Ok, thank you Will. Now I did it and it works perfectly.
The only question, if I can optimize the CPU-power:
Now I am asking in the PING routine, if there is a new file-name. This is quite often. Is that a problem? Or is there a way to catch messages from the GUI without repeating to ask for?
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New problem with CNewFileSelector
Living in Germany, I have sometimes special characters in file name.
CNewFileSelector* selector = CNewFileSelector::create(getFrame(), CNewFileSelector::kSelectFile);
selector->getSelectedFile(0) returns a UTF8StringPtr
How do I use this pointer to open the file?
It works with standard characters but not with special ones. Example
"D:\\Music\\TimeFreezerSounds\\Marc Lingk\\Phrasen 11 Flöten.wav"
But it should be
"D:\\Music\\TimeFreezerSounds\\Marc Lingk\\Phrasen 11 Flöten.wav"
I must cast it to platform string but how?
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Looks like Arne answered your question here:
https://forums.steinberg.net/t/cnewfileselector-open-file-name-with-special-characters/711688/10
Will
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