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ac5c93bfbefb18130eb0f1371fdacca0909cc16a
libreoffice/vcl/inc/qt5/QtInstance.hxx
Balazs Varga ac5c93bfbe Add extra font config options for emscripten wasm build 
In case of wasm build we can have missing default font config
options compared to Linux or other builds. These options are
necessary for the FontConfig lib.

Change-Id: I3e04847f28bdbd28c767793bf5cb4061b7b3a251
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/182462
Tested-by: Jenkins
Reviewed-by: Balazs Varga <balazs.varga.extern@allotropia.de>
2025-03-04 20:45:17 +01:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <config_emscripten.h>
#include <config_vclplug.h>
#include <vclpluginapi.h>
#include <unx/geninst.h>
#include <salusereventlist.hxx>
#include <vcl/timer.hxx>
#include <osl/conditn.hxx>
#include <QtCore/QObject>
#include <concepts>
#include <cstdlib>
#include <functional>
#include <memory>
#include <type_traits>
#include <utility>
#include <vector>
#include "QtFilePicker.hxx"
#include <salinst.hxx>
class QtFrame;
class QtTimer;
class QApplication;
class SalYieldMutex;
class SalFrame;
#if defined EMSCRIPTEN && ENABLE_QT6 && HAVE_EMSCRIPTEN_JSPI && !HAVE_EMSCRIPTEN_PROXY_TO_PTHREAD
namespace comphelper::emscriptenthreading
{
struct Data;
}
#endif
struct StdFreeCStr
{
void operator()(char* arg) const noexcept { std::free(arg); }
};
using FreeableCStr = std::unique_ptr<char[], StdFreeCStr>;
class VCLPLUG_QT_PUBLIC QtInstance : public QObject,
public SalGenericInstance,
public SalUserEventList
{
Q_OBJECT
osl::Condition m_aWaitingYieldCond;
const bool m_bUseCairo;
QtTimer* m_pTimer;
bool m_bSleeping;
std::unordered_map<OUString, css::uno::Reference<css::uno::XInterface>> m_aClipboards;
std::unique_ptr<QApplication> m_pQApplication;
std::vector<FreeableCStr> m_pFakeArgvFreeable;
std::unique_ptr<char* []> m_pFakeArgv;
std::unique_ptr<int> m_pFakeArgc;
Timer m_aUpdateStyleTimer;
bool m_bUpdateFonts;
QtFrame* m_pActivePopup;
#if defined EMSCRIPTEN && ENABLE_QT6 && HAVE_EMSCRIPTEN_JSPI && !HAVE_EMSCRIPTEN_PROXY_TO_PTHREAD
comphelper::emscriptenthreading::Data* m_emscriptenThreadingData;
#endif
DECL_DLLPRIVATE_LINK(updateStyleHdl, Timer*, void);
void AfterAppInit() override;
static QWidget* GetNativeParentFromWeldParent(weld::Widget* pParent);
void EmscriptenLightweightRunInMainThread_(std::function<void()> func);
private Q_SLOTS:
bool ImplYield(bool bWait, bool bHandleAllCurrentEvents);
static void deleteObjectLater(QObject* pObject);
static void localeChanged();
void orientationChanged(Qt::ScreenOrientation);
void primaryScreenChanged(QScreen*);
void screenAdded(QScreen*);
void screenRemoved(QScreen*);
void virtualGeometryChanged(const QRect&);
Q_SIGNALS:
bool ImplYieldSignal(bool bWait, bool bHandleAllCurrentEvents);
void deleteObjectLaterSignal(QObject* pObject);
protected:
virtual rtl::Reference<QtFilePicker>
createPicker(css::uno::Reference<css::uno::XComponentContext> const& context,
QFileDialog::FileMode);
bool useCairo() const { return m_bUseCairo; }
// encodes cairo usage and Qt platform name into the ToolkitName
OUString constructToolkitID(std::u16string_view sTKname);
void connectQScreenSignals(const QScreen*);
void notifyDisplayChanged();
public:
explicit QtInstance(std::unique_ptr<QApplication>& pQApp);
virtual ~QtInstance() override;
// handle common SalInstance setup
static void AllocFakeCmdlineArgs(std::unique_ptr<char* []>& rFakeArgv,
std::unique_ptr<int>& rFakeArgc,
std::vector<FreeableCStr>& rFakeArgvFreeable);
void MoveFakeCmdlineArgs(std::unique_ptr<char* []>& rFakeArgv, std::unique_ptr<int>& rFakeArgc,
std::vector<FreeableCStr>& rFakeArgvFreeable);
static std::unique_ptr<QApplication> CreateQApplication(int& nArgc, char** pArgv);
void RunInMainThread(std::function<void()> func);
template <typename F>
requires std::invocable<F> std::invoke_result_t<F>
EmscriptenLightweightRunInMainThread(F&& func)
{
if constexpr (std::is_same_v<std::invoke_result_t<F>, void>)
{
EmscriptenLightweightRunInMainThread_(std::move(func));
}
else
{
std::invoke_result_t<F> ret;
EmscriptenLightweightRunInMainThread_(
[&func, &ret] { ret = std::forward<std::invoke_result_t<F>>(func()); });
return ret;
}
}
virtual SalFrame* CreateFrame(SalFrame* pParent, SalFrameStyleFlags nStyle) override;
virtual SalFrame* CreateChildFrame(SystemParentData* pParent,
SalFrameStyleFlags nStyle) override;
virtual void DestroyFrame(SalFrame* pFrame) override;
virtual SalObject* CreateObject(SalFrame* pParent, SystemWindowData* pWindowData,
bool bShow) override;
virtual void DestroyObject(SalObject* pObject) override;
virtual std::unique_ptr<SalVirtualDevice> CreateVirtualDevice(SalGraphics& rGraphics,
tools::Long nDX, tools::Long nDY,
DeviceFormat eFormat) override;
virtual std::unique_ptr<SalVirtualDevice>
CreateVirtualDevice(SalGraphics& rGraphics, tools::Long& nDX, tools::Long& nDY,
DeviceFormat eFormat, const SystemGraphicsData& rData) override;
virtual SalInfoPrinter* CreateInfoPrinter(SalPrinterQueueInfo* pQueueInfo,
ImplJobSetup* pSetupData) override;
virtual void DestroyInfoPrinter(SalInfoPrinter* pPrinter) override;
virtual std::unique_ptr<SalPrinter> CreatePrinter(SalInfoPrinter* pInfoPrinter) override;
virtual void GetPrinterQueueInfo(ImplPrnQueueList* pList) override;
virtual void GetPrinterQueueState(SalPrinterQueueInfo* pInfo) override;
virtual OUString GetDefaultPrinter() override;
virtual void PostPrintersChanged() override;
virtual std::unique_ptr<SalMenu> CreateMenu(bool, Menu*) override;
virtual std::unique_ptr<SalMenuItem> CreateMenuItem(const SalItemParams&) override;
virtual SalTimer* CreateSalTimer() override;
virtual SalSystem* CreateSalSystem() override;
virtual std::shared_ptr<SalBitmap> CreateSalBitmap() override;
virtual bool DoYield(bool bWait, bool bHandleAllCurrentEvents) override;
virtual bool AnyInput(VclInputFlags nType) override;
std::unique_ptr<weld::Builder> CreateBuilder(weld::Widget* pParent, const OUString& rUIRoot,
const OUString& rUIFile) override;
virtual weld::MessageDialog* CreateMessageDialog(weld::Widget* pParent,
VclMessageType eMessageType,
VclButtonsType eButtonType,
const OUString& rPrimaryMessage) override;
// so we fall back to the default abort, instead of duplicating it...
#ifndef EMSCRIPTEN
virtual OpenGLContext* CreateOpenGLContext() override;
#endif
virtual OUString GetConnectionIdentifier() override;
virtual void AddToRecentDocumentList(const OUString& rFileUrl, const OUString& rMimeType,
const OUString& rDocumentService) override;
virtual std::unique_ptr<GenPspGraphics> CreatePrintGraphics() override;
virtual bool IsMainThread() const override;
virtual void TriggerUserEventProcessing() override;
virtual void ProcessEvent(SalUserEvent aEvent) override;
bool hasNativeFileSelection() const override { return true; }
css::uno::Reference<css::ui::dialogs::XFilePicker2>
createFilePicker(const css::uno::Reference<css::uno::XComponentContext>&) override;
css::uno::Reference<css::ui::dialogs::XFolderPicker2>
createFolderPicker(const css::uno::Reference<css::uno::XComponentContext>&) override;
virtual css::uno::Reference<css::uno::XInterface>
CreateClipboard(const css::uno::Sequence<css::uno::Any>& i_rArguments) override;
virtual css::uno::Reference<css::uno::XInterface>
ImplCreateDragSource(const SystemEnvData*) override;
virtual css::uno::Reference<css::uno::XInterface>
ImplCreateDropTarget(const SystemEnvData*) override;
// for qt font options
virtual const cairo_font_options_t* GetCairoFontOptions() override;
// whether to reduce animations; KFSalInstance overrides this to read Plasma settings
virtual bool GetUseReducedAnimation() { return false; }
void UpdateStyle(bool bFontsChanged);
void* CreateGStreamerSink(const SystemChildWindow*) override;
bool DoExecute(int& nExitCode) override;
void DoQuit() override;
QtFrame* activePopup() const { return m_pActivePopup; }
void setActivePopup(QtFrame*);
};
inline QtInstance& GetQtInstance()
{
QtInstance* pInstance = static_cast<QtInstance*>(GetSalInstance());
assert(pInstance);
return *pInstance;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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