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/*
* VSTEditor.cpp
* -------------
* Purpose: Implementation of the custom plugin editor window that is used if a plugin provides an own editor GUI.
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "resource.h"
#include "Vstplug.h"
#include "VSTEditor.h"
OPENMPT_NAMESPACE_BEGIN
#ifdef MPT_WITH_VST
BEGIN_MESSAGE_MAP(COwnerVstEditor, CAbstractVstEditor)
ON_WM_ERASEBKGND()
ON_WM_PAINT()
// Messages from plugin bridge to check whether a key would be handled by OpenMPT
// We need an offset to WM_USER because the editor window receives some spurious WM_USER messages (from MFC?) when it gets activated
ON_MESSAGE(WM_USER + 4000 + WM_KEYDOWN - WM_KEYFIRST, &COwnerVstEditor::OnPreTranslateKeyDown)
ON_MESSAGE(WM_USER + 4000 + WM_KEYUP - WM_KEYFIRST, &COwnerVstEditor::OnPreTranslateKeyUp)
ON_MESSAGE(WM_USER + 4000 + WM_SYSKEYDOWN - WM_KEYFIRST, &COwnerVstEditor::OnPreTranslateSysKeyDown)
ON_MESSAGE(WM_USER + 4000 + WM_SYSKEYUP - WM_KEYFIRST, &COwnerVstEditor::OnPreTranslateSysKeyUp)
END_MESSAGE_MAP()
void COwnerVstEditor::OnPaint()
{
CAbstractVstEditor::OnPaint();
auto &plugin = static_cast<const CVstPlugin &>(m_VstPlugin);
if(plugin.isBridged)
{
// Force redrawing for the plugin window in the bridged process.
// Otherwise, bridged plugin GUIs will not always be refreshed properly (e.g. when restoring OpenMPT from minimized state).
// Synth1 is a good candidate for testing this behaviour.
CRect rect;
if(m_plugWindow.GetUpdateRect(&rect, FALSE))
{
CWnd *child = m_plugWindow.GetWindow(GW_CHILD | GW_HWNDFIRST);
if(child)
child->RedrawWindow(&rect, nullptr, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_UPDATENOW);
}
} else
{
// For plugins that change their size without telling the host through audioMasterSizeWindow, e.g. Roland D-50
CRect rect;
m_plugWindow.GetClientRect(rect);
if(rect.Width() != m_width || rect.Height() != m_height)
{
SetSize(rect.Width(), rect.Height());
}
}
}
void COwnerVstEditor::UpdateParamDisplays()
{
CAbstractVstEditor::UpdateParamDisplays();
// We trust that the plugin GUI can update its display with a bit of idle time.
static_cast<CVstPlugin &>(m_VstPlugin).Dispatch(Vst::effEditIdle, 0, 0, nullptr, 0.0f);
}
bool COwnerVstEditor::OpenEditor(CWnd *parent)
{
Create(IDD_PLUGINEDITOR, parent);
// Some plugins (e.g. ProteusVX) need to be planted into another control or else they will break our window proc, making the window unusable.
m_plugWindow.Create(nullptr, WS_CHILD | WS_VISIBLE, CRect(0, 0, 100, 100), this);
// Set editor window size
Vst::ERect rect{};
Vst::ERect *pRect = nullptr;
CVstPlugin &vstPlug = static_cast<CVstPlugin &>(m_VstPlugin);
vstPlug.Dispatch(Vst::effEditGetRect, 0, 0, &pRect, 0);
if(pRect) rect = *pRect;
vstPlug.Dispatch(Vst::effEditOpen, 0, 0, m_plugWindow.m_hWnd, 0);
vstPlug.Dispatch(Vst::effEditGetRect, 0, 0, &pRect, 0);
if(pRect) rect = *pRect;
if(rect.right > rect.left && rect.bottom > rect.top)
{
// Plugin provided valid window size.
SetSize(rect.Width(), rect.Height());
}
vstPlug.Dispatch(Vst::effEditTop, 0,0, nullptr, 0.0f);
vstPlug.Dispatch(Vst::effEditIdle, 0,0, nullptr, 0.0f);
// Set knob mode to linear (2) instead of circular (0) for those plugins that support it (e.g. Steinberg VB-1)
vstPlug.Dispatch(Vst::effSetEditKnobMode, 0, 2, nullptr, 0.0f);
return CAbstractVstEditor::OpenEditor(parent);
}
void COwnerVstEditor::DoClose()
{
// Prevent some plugins from storing a bogus window size (e.g. Electri-Q)
ShowWindow(SW_HIDE);
if(m_isMinimized) OnNcLButtonDblClk(HTCAPTION, CPoint(0, 0));
static_cast<CVstPlugin &>(m_VstPlugin).Dispatch(Vst::effEditClose, 0, 0, nullptr, 0.0f);
CAbstractVstEditor::DoClose();
}
bool COwnerVstEditor::SetSize(int contentWidth, int contentHeight)
{
if(contentWidth < 0 || contentHeight < 0 || !m_hWnd)
{
return false;
}
m_width = contentWidth;
m_height = contentHeight;
CRect rcWnd, rcClient;
// Get border / menu size.
GetWindowRect(&rcWnd);
GetClientRect(&rcClient);
// Narrow plugin GUIs may force the number of menu bar lines (and thus the required window height) to change
WindowSizeAdjuster adjuster(*this);
const int windowWidth = rcWnd.Width() - rcClient.Width() + contentWidth;
const int windowHeight = rcWnd.Height() - rcClient.Height() + contentHeight;
SetWindowPos(NULL, 0, 0,
windowWidth, windowHeight,
SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
m_plugWindow.SetWindowPos(NULL, 0, 0,
contentWidth, contentHeight,
SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
return true;
}
#endif // MPT_WITH_VST
OPENMPT_NAMESPACE_END
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