--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DPF-Prymula-audioplugins/dpf/distrho/src/DistrhoUI.cpp	Mon Oct 16 21:53:34 2023 +0200
@@ -0,0 +1,463 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2023 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoDetails.hpp"
+#include "src/DistrhoPluginChecks.h"
+#include "src/DistrhoDefines.h"
+
+#include <cstddef>
+
+#ifdef DISTRHO_PROPER_CPP11_SUPPORT
+# include <cstdint>
+#else
+# include <stdint.h>
+#endif
+
+#if DISTRHO_UI_FILE_BROWSER && !defined(DISTRHO_OS_MAC)
+# define DISTRHO_PUGL_NAMESPACE_MACRO_HELPER(NS, SEP, FUNCTION) NS ## SEP ## FUNCTION
+# define DISTRHO_PUGL_NAMESPACE_MACRO(NS, FUNCTION) DISTRHO_PUGL_NAMESPACE_MACRO_HELPER(NS, _, FUNCTION)
+# define x_fib_add_recent          DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_add_recent)
+# define x_fib_cfg_buttons         DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_cfg_buttons)
+# define x_fib_cfg_filter_callback DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_cfg_filter_callback)
+# define x_fib_close               DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_close)
+# define x_fib_configure           DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_configure)
+# define x_fib_filename            DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_filename)
+# define x_fib_free_recent         DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_free_recent)
+# define x_fib_handle_events       DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_handle_events)
+# define x_fib_load_recent         DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_load_recent)
+# define x_fib_recent_at           DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_recent_at)
+# define x_fib_recent_count        DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_recent_count)
+# define x_fib_recent_file         DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_recent_file)
+# define x_fib_save_recent         DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_save_recent)
+# define x_fib_show                DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_show)
+# define x_fib_status              DISTRHO_PUGL_NAMESPACE_MACRO(plugin, x_fib_status)
+# define DISTRHO_FILE_BROWSER_DIALOG_HPP_INCLUDED
+# define FILE_BROWSER_DIALOG_NAMESPACE DISTRHO_NAMESPACE
+# define FILE_BROWSER_DIALOG_DISTRHO_NAMESPACE
+START_NAMESPACE_DISTRHO
+# include "../extra/FileBrowserDialogImpl.hpp"
+END_NAMESPACE_DISTRHO
+# include "../extra/FileBrowserDialogImpl.cpp"
+#endif
+
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+# if defined(DISTRHO_OS_WINDOWS)
+#  include <winsock2.h>
+#  include <windows.h>
+# elif defined(HAVE_X11)
+#  include <X11/Xresource.h>
+# endif
+#else
+# include "src/TopLevelWidgetPrivateData.hpp"
+# include "src/WindowPrivateData.hpp"
+#endif
+
+#include "DistrhoUIPrivateData.hpp"
+
+START_NAMESPACE_DISTRHO
+
+/* ------------------------------------------------------------------------------------------------------------
+ * Static data, see DistrhoUIInternal.hpp */
+
+const char* g_nextBundlePath  = nullptr;
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+uintptr_t   g_nextWindowId    = 0;
+double      g_nextScaleFactor = 1.0;
+#endif
+
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+/* ------------------------------------------------------------------------------------------------------------
+ * get global scale factor */
+
+#ifdef DISTRHO_OS_MAC
+double getDesktopScaleFactor(uintptr_t parentWindowHandle);
+#else
+static double getDesktopScaleFactor(const uintptr_t parentWindowHandle)
+{
+    // allow custom scale for testing
+    if (const char* const scale = getenv("DPF_SCALE_FACTOR"))
+        return std::max(1.0, std::atof(scale));
+
+#if defined(DISTRHO_OS_WINDOWS)
+    if (const HMODULE Shcore = LoadLibraryA("Shcore.dll"))
+    {
+        typedef HRESULT(WINAPI* PFN_GetProcessDpiAwareness)(HANDLE, DWORD*);
+        typedef HRESULT(WINAPI* PFN_GetScaleFactorForMonitor)(HMONITOR, DWORD*);
+
+# if defined(__GNUC__) && (__GNUC__ >= 9)
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wcast-function-type"
+# endif
+        const PFN_GetProcessDpiAwareness GetProcessDpiAwareness
+            = (PFN_GetProcessDpiAwareness)GetProcAddress(Shcore, "GetProcessDpiAwareness");
+        const PFN_GetScaleFactorForMonitor GetScaleFactorForMonitor
+            = (PFN_GetScaleFactorForMonitor)GetProcAddress(Shcore, "GetScaleFactorForMonitor");
+# if defined(__GNUC__) && (__GNUC__ >= 9)
+#  pragma GCC diagnostic pop
+# endif
+
+        DWORD dpiAware = 0;
+        DWORD scaleFactor = 100;
+        if (GetProcessDpiAwareness && GetScaleFactorForMonitor
+            && GetProcessDpiAwareness(nullptr, &dpiAware) == 0 && dpiAware != 0)
+        {
+            const HMONITOR hMon = parentWindowHandle != 0
+                                ? MonitorFromWindow((HWND)parentWindowHandle, MONITOR_DEFAULTTOPRIMARY)
+                                : MonitorFromPoint(POINT{0,0}, MONITOR_DEFAULTTOPRIMARY);
+            GetScaleFactorForMonitor(hMon, &scaleFactor);
+        }
+
+        FreeLibrary(Shcore);
+        return static_cast<double>(scaleFactor) / 100.0;
+    }
+#elif defined(HAVE_X11)
+    ::Display* const display = XOpenDisplay(nullptr);
+    DISTRHO_SAFE_ASSERT_RETURN(display != nullptr, 1.0);
+
+    XrmInitialize();
+
+    double dpi = 96.0;
+    if (char* const rms = XResourceManagerString(display))
+    {
+        if (const XrmDatabase db = XrmGetStringDatabase(rms))
+        {
+            char* type = nullptr;
+            XrmValue value = {};
+
+            if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value)
+                && type != nullptr
+                && std::strcmp(type, "String") == 0
+                && value.addr != nullptr)
+            {
+                char*        end    = nullptr;
+                const double xftDpi = std::strtod(value.addr, &end);
+                if (xftDpi > 0.0 && xftDpi < HUGE_VAL)
+                    dpi = xftDpi;
+            }
+
+            XrmDestroyDatabase(db);
+        }
+    }
+
+    XCloseDisplay(display);
+    return dpi / 96;
+#endif
+
+    return 1.0;
+
+    // might be unused
+    (void)parentWindowHandle;
+}
+#endif // !DISTRHO_OS_MAC
+
+#endif
+
+/* ------------------------------------------------------------------------------------------------------------
+ * UI::PrivateData special handling */
+
+UI::PrivateData* UI::PrivateData::s_nextPrivateData = nullptr;
+
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+ExternalWindow::PrivateData
+#else
+PluginWindow&
+#endif
+UI::PrivateData::createNextWindow(UI* const ui, uint width, uint height, const bool adjustForScaleFactor)
+{
+    UI::PrivateData* const pData = s_nextPrivateData;
+   #if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+    const double scaleFactor = d_isNotZero(pData->scaleFactor) ? pData->scaleFactor : getDesktopScaleFactor(pData->winId);
+
+    if (adjustForScaleFactor && d_isNotZero(scaleFactor) && d_isNotEqual(scaleFactor, 1.0))
+    {
+        width *= scaleFactor;
+        height *= scaleFactor;
+    }
+
+    pData->window = new PluginWindow(ui, pData->app);
+    ExternalWindow::PrivateData ewData;
+    ewData.parentWindowHandle = pData->winId;
+    ewData.width = width;
+    ewData.height = height;
+    ewData.scaleFactor = scaleFactor;
+    ewData.title = DISTRHO_PLUGIN_NAME;
+    ewData.isStandalone = DISTRHO_UI_IS_STANDALONE;
+    return ewData;
+   #else
+    const double scaleFactor = pData->scaleFactor;
+
+    if (adjustForScaleFactor && d_isNotZero(scaleFactor) && d_isNotEqual(scaleFactor, 1.0))
+    {
+        width *= scaleFactor;
+        height *= scaleFactor;
+    }
+
+    pData->window = new PluginWindow(ui, pData->app, pData->winId, width, height, scaleFactor);
+
+    // If there are no callbacks, this is most likely a temporary window, so ignore idle callbacks
+    if (pData->callbacksPtr == nullptr)
+        pData->window->setIgnoreIdleCallbacks();
+
+    return pData->window.getObject();
+   #endif
+}
+
+/* ------------------------------------------------------------------------------------------------------------
+ * UI */
+
+UI::UI(const uint width, const uint height, const bool automaticallyScaleAndSetAsMinimumSize)
+    : UIWidget(UI::PrivateData::createNextWindow(this,
+              #ifdef DISTRHO_UI_DEFAULT_WIDTH
+               width == 0 ? DISTRHO_UI_DEFAULT_WIDTH :
+              #endif
+               width,
+              #ifdef DISTRHO_UI_DEFAULT_HEIGHT
+               height == 0 ? DISTRHO_UI_DEFAULT_HEIGHT :
+              #endif
+               height,
+              #ifdef DISTRHO_UI_DEFAULT_WIDTH
+               width == 0
+              #else
+               false
+              #endif
+               )),
+      uiData(UI::PrivateData::s_nextPrivateData)
+{
+#if !DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+    if (width != 0 && height != 0)
+    {
+        Widget::setSize(width, height);
+
+        if (automaticallyScaleAndSetAsMinimumSize)
+            setGeometryConstraints(width, height, true, true, true);
+    }
+   #ifdef DISTRHO_UI_DEFAULT_WIDTH
+    else
+    {
+        Widget::setSize(DISTRHO_UI_DEFAULT_WIDTH, DISTRHO_UI_DEFAULT_HEIGHT);
+    }
+   #endif
+#else
+    // unused
+    (void)automaticallyScaleAndSetAsMinimumSize;
+#endif
+}
+
+UI::~UI()
+{
+}
+
+/* ------------------------------------------------------------------------------------------------------------
+ * Host state */
+
+bool UI::isResizable() const noexcept
+{
+#if DISTRHO_UI_USER_RESIZABLE
+# if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+    return true;
+# else
+    return uiData->window->isResizable();
+# endif
+#else
+    return false;
+#endif
+}
+
+uint UI::getBackgroundColor() const noexcept
+{
+    return uiData->bgColor;
+}
+
+uint UI::getForegroundColor() const noexcept
+{
+    return uiData->fgColor;
+}
+
+double UI::getSampleRate() const noexcept
+{
+    return uiData->sampleRate;
+}
+
+const char* UI::getBundlePath() const noexcept
+{
+    return uiData->bundlePath;
+}
+
+void UI::editParameter(uint32_t index, bool started)
+{
+    uiData->editParamCallback(index + uiData->parameterOffset, started);
+}
+
+void UI::setParameterValue(uint32_t index, float value)
+{
+    uiData->setParamCallback(index + uiData->parameterOffset, value);
+}
+
+#if DISTRHO_PLUGIN_WANT_STATE
+void UI::setState(const char* key, const char* value)
+{
+    uiData->setStateCallback(key, value);
+}
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+bool UI::requestStateFile(const char* key)
+{
+    return uiData->fileRequestCallback(key);
+}
+#endif
+
+#if DISTRHO_PLUGIN_WANT_MIDI_INPUT
+void UI::sendNote(uint8_t channel, uint8_t note, uint8_t velocity)
+{
+    uiData->sendNoteCallback(channel, note, velocity);
+}
+#endif
+
+#if DISTRHO_UI_FILE_BROWSER
+bool UI::openFileBrowser(const FileBrowserOptions& options)
+{
+    return getWindow().openFileBrowser((DGL_NAMESPACE::FileBrowserOptions&)options);
+}
+#endif
+
+#if DISTRHO_PLUGIN_WANT_DIRECT_ACCESS
+/* ------------------------------------------------------------------------------------------------------------
+ * Direct DSP access */
+
+void* UI::getPluginInstancePointer() const noexcept
+{
+    return uiData->dspPtr;
+}
+#endif
+
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+/* ------------------------------------------------------------------------------------------------------------
+ * External UI helpers (static calls) */
+
+const char* UI::getNextBundlePath() noexcept
+{
+    return g_nextBundlePath;
+}
+
+double UI::getNextScaleFactor() noexcept
+{
+    return g_nextScaleFactor;
+}
+
+# if DISTRHO_PLUGIN_HAS_EMBED_UI
+uintptr_t UI::getNextWindowId() noexcept
+{
+    return g_nextWindowId;
+}
+# endif
+#endif // DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+
+/* ------------------------------------------------------------------------------------------------------------
+ * DSP/Plugin Callbacks (optional) */
+
+void UI::sampleRateChanged(double)
+{
+}
+
+/* ------------------------------------------------------------------------------------------------------------
+ * UI Callbacks (optional) */
+
+void UI::uiScaleFactorChanged(double)
+{
+}
+
+#if !DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+std::vector<DGL_NAMESPACE::ClipboardDataOffer> UI::getClipboardDataOfferTypes()
+{
+    return uiData->window->getClipboardDataOfferTypes();
+}
+
+uint32_t UI::uiClipboardDataOffer()
+{
+    std::vector<DGL_NAMESPACE::ClipboardDataOffer> offers(uiData->window->getClipboardDataOfferTypes());
+
+    for (std::vector<DGL_NAMESPACE::ClipboardDataOffer>::iterator it=offers.begin(), end=offers.end(); it != end;++it)
+    {
+        const DGL_NAMESPACE::ClipboardDataOffer offer = *it;
+        if (std::strcmp(offer.type, "text/plain") == 0)
+            return offer.id;
+    }
+
+    return 0;
+}
+
+void UI::uiFocus(bool, DGL_NAMESPACE::CrossingMode)
+{
+}
+
+void UI::uiReshape(uint, uint)
+{
+    // NOTE this must be the same as Window::onReshape
+    pData->fallbackOnResize();
+}
+#endif // !DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+
+#if DISTRHO_UI_FILE_BROWSER
+void UI::uiFileBrowserSelected(const char*)
+{
+}
+#endif
+
+/* ------------------------------------------------------------------------------------------------------------
+ * UI Resize Handling, internal */
+
+#if DISTRHO_PLUGIN_HAS_EXTERNAL_UI
+void UI::sizeChanged(const uint width, const uint height)
+{
+    UIWidget::sizeChanged(width, height);
+
+    uiData->setSizeCallback(width, height);
+}
+#else
+void UI::onResize(const ResizeEvent& ev)
+{
+    UIWidget::onResize(ev);
+
+   #if !(defined(DISTRHO_PLUGIN_TARGET_VST3) || defined(DISTRHO_PLUGIN_TARGET_CLAP))
+    if (uiData->initializing)
+        return;
+
+    const uint width = ev.size.getWidth();
+    const uint height = ev.size.getHeight();
+    uiData->setSizeCallback(width, height);
+   #endif
+}
+
+// NOTE: only used for VST3 and CLAP
+void UI::requestSizeChange(const uint width, const uint height)
+{
+   #if defined(DISTRHO_PLUGIN_TARGET_VST3) || defined(DISTRHO_PLUGIN_TARGET_CLAP)
+    if (uiData->initializing)
+        uiData->window->setSizeFromHost(width, height);
+    else
+        uiData->setSizeCallback(width, height);
+   #else
+    // unused
+    (void)width;
+    (void)height;
+   #endif
+}
+#endif
+
+// -----------------------------------------------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO