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90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
/*****************************************************************************
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Copyright (C) 2016-2017 by Colin Edwards.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************/
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#include <QGridLayout>
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#include "../headers/EditorWidget.h"
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void EditorWidget::buildEffectContainer(AEffect *effect)
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{
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WNDCLASSEXW wcex{sizeof(wcex)};
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wcex.lpfnWndProc = DefWindowProcW;
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wcex.hInstance = GetModuleHandleW(nullptr);
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wcex.lpszClassName = L"Minimal VST host - Guest VST Window Frame";
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RegisterClassExW(&wcex);
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const auto style = WS_CAPTION | WS_THICKFRAME | WS_OVERLAPPEDWINDOW;
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windowHandle =
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CreateWindowW(wcex.lpszClassName, TEXT(""), style, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr);
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// set pointer to vst effect for window long
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LONG_PTR wndPtr = (LONG_PTR)effect;
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SetWindowLongPtr(windowHandle, -21 /*GWLP_USERDATA*/, wndPtr);
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QWidget *widget = QWidget::createWindowContainer(QWindow::fromWinId((WId)windowHandle), nullptr);
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widget->move(0, 0);
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QGridLayout *layout = new QGridLayout();
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layout->setContentsMargins(0, 0, 0, 0);
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layout->setSpacing(0);
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setLayout(layout);
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layout->addWidget(widget);
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effect->dispatcher(effect, effEditOpen, 0, 0, windowHandle, 0);
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VstRect *vstRect = nullptr;
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effect->dispatcher(effect, effEditGetRect, 0, 0, &vstRect, 0);
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if (vstRect) {
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// on Windows, the size reported by 'effect' is larger than
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// its actual size by a factor of the monitor's ui scale,
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// so the window size should be divided by the factor
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qreal scale_factor = devicePixelRatioF();
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int width = vstRect->right - vstRect->left;
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int height = vstRect->bottom - vstRect->top;
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width = static_cast<int>(width / scale_factor);
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height = static_cast<int>(height / scale_factor);
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widget->resize(width, height);
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resize(width, height);
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} else {
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widget->resize(300, 300);
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}
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}
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void EditorWidget::handleResizeRequest(int, int)
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{
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// Some plugins can't resize automatically (like SPAN by Voxengo),
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// so we must resize window manually
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// get pointer to vst effect from window long
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LONG_PTR wndPtr = (LONG_PTR)GetWindowLongPtrW(windowHandle, -21 /*GWLP_USERDATA*/);
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AEffect *effect = (AEffect *)(wndPtr);
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VstRect *rec = nullptr;
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effect->dispatcher(effect, effEditGetRect, 0, 0, &rec, 0);
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if (rec) {
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// on Windows, the size reported by 'effect' is larger than
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// its actual size by a factor of the monitor's ui scale,
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// so the window size should be divided by the factor
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qreal scale_factor = devicePixelRatioF();
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int width = rec->right - rec->left;
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int height = rec->bottom - rec->top;
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width = static_cast<int>(width / scale_factor);
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height = static_cast<int>(height / scale_factor);
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resize(width, height);
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}
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}
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