2 * \file GuiApplication.h
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * \author Abdelrazak Younes
10 * Full author contact details are available in file CREDITS.
13 #ifndef GUIAPPLICATION_H
14 #define GUIAPPLICATION_H
16 #include "KeyModifier.h"
18 #include "frontends/Application.h"
19 #include "support/filetools.h"
21 #include <QApplication>
24 #include <QAbstractNativeEventFilter>
27 class QAbstractItemModel;
29 class QSessionManager;
50 /// The Qt main application class
52 There should be only one instance of this class. No Qt object
53 initialisation should be done before the instantiation of this class.
55 class GuiApplication : public QApplication, public Application
57 , public QAbstractNativeEventFilter
63 GuiApplication(int & argc, char ** argv);
66 /// \name Methods inherited from Application class
68 DispatchResult const & dispatch(FuncRequest const &) override;
69 void dispatch(FuncRequest const &, DispatchResult & dr) override;
70 FuncStatus getStatus(FuncRequest const & cmd) const override;
71 void restoreGuiSession() override;
72 Buffer const * updateInset(Inset const * inset) const override;
74 void exit(int status) override;
75 bool event(QEvent * e) override;
76 bool getRgbColor(ColorCode col, RGBColor & rgbcol) override;
77 bool isInDarkMode() override;
78 std::string const hexName(ColorCode col) override;
79 void registerSocketCallback(int fd, SocketCallback func) override;
80 void unregisterSocketCallback(int fd) override;
81 bool searchMenu(FuncRequest const & func, docstring_list & names) const override;
82 bool hasBufferView() const override;
83 std::string inputLanguageCode() const override;
84 void handleKeyFunc(FuncCode action) override;
85 bool unhide(Buffer * buf) override;
89 bool getStatus(FuncRequest const & cmd, FuncStatus & status) const;
91 void hideDialogs(std::string const & name, Inset * inset) const;
94 /// Return true if current position is RTL of if no document is open and interface if RTL
95 bool rtlContext() const;
97 /// Scale Pixmaps properly (also for HiDPI)
98 QPixmap getScaledPixmap(QString imagedir, QString name) const;
101 Clipboard & clipboard();
103 Selection & selection();
105 FontLoader & fontLoader();
108 Toolbars const & toolbars() const;
110 Toolbars & toolbars();
112 Menus const & menus() const;
116 /// \returns true if painting the workarea requires a backing store.
117 bool needsBackingStore() const;
119 /// \name Methods inherited from QApplication class
121 bool notify(QObject * receiver, QEvent * event) override;
122 void commitData(QSessionManager & sm);
124 virtual bool nativeEventFilter(const QByteArray & eventType, void * message,
125 long * result) override;
129 /// Create the main window with given geometry settings.
130 /// \param geometry_arg: only for Windows platform.
131 /// \param optional id identifier.
132 void createView(QString const & geometry_arg = QString(),
133 bool autoShow = true, int id = 0);
134 /// FIXME: this method and the one above are quite ugly.
135 void createView(int id);
137 GuiView const * currentView() const { return current_view_; }
139 GuiView * currentView() { return current_view_; }
141 void setCurrentView(GuiView * view) { current_view_ = view; }
143 QList<int> viewIds() const;
145 /// Clear all session information.
149 ColorCache & colorCache();
151 QAbstractItemModel * languageModel();
153 /// return a suitable serif font name.
154 QString const romanFontName();
156 /// return a suitable sans serif font name.
157 QString const sansFontName();
159 /// return a suitable monospaced font name.
160 QString const typewriterFontName();
161 QFont const typewriterSystemFont();
164 void unregisterView(GuiView * gv);
166 GuiView & view(int id) const;
168 /// Current ratio between physical pixels and device-independent pixels
169 double pixelRatio() const;
171 /// How to load image files
172 support::search_mode imageSearchMode() const {
173 return pixelRatio() > 1 ? support::check_hidpi : support::must_exist;
176 /// return true if the key is part of a shortcut
177 bool queryKeySym(KeySymbol const & key, KeyModifier state) const;
179 void processKeySym(KeySymbol const & key, KeyModifier state);
180 /// return the status bar state string
181 docstring viewStatusMessage();
183 /// \name Methods to process FuncRequests
185 /// process the func request
186 void processFuncRequest(FuncRequest const &);
187 /// add a func request to the queue and process it asynchronously
188 /// \note As a side-effect this will also process the
189 /// func requests that were added to the queue before.
190 void processFuncRequestAsync(FuncRequest const &);
191 /// process the func requests in the queue
192 void processFuncRequestQueue();
193 /// process the func requests in the queue asynchronously
194 void processFuncRequestQueueAsync();
195 /// add a func request to the queue for later processing
196 void addToFuncRequestQueue(FuncRequest const &);
200 /// openFile: whether or not open a file if the file is not opened
201 /// switchToBuffer: whether or not switch to buffer if the buffer is
202 /// not the current buffer
203 void gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer);
205 /// Start a long operation with some cancel possibility (button or ESC)
206 void startLongOperation() override;
207 /// This needs to be periodically called to avoid freezing the GUI
208 bool longOperationCancelled() override;
209 /// Stop the long operation mode (i.e., release the GUI)
210 void stopLongOperation() override;
211 /// A started long operation is still in progress ?
212 bool longOperationStarted() override;
215 void execBatchCommands();
217 void socketDataReceived(int fd);
218 /// events to be triggered by Private::general_timer_ should go here
219 void handleRegularEvents();
221 void onLastWindowClosed();
223 void onLocaleChanged();
225 void onPaletteChanged();
227 void slotProcessFuncRequestQueue() { processFuncRequestQueue(); }
229 void onApplicationStateChanged(Qt::ApplicationState state);
233 void validateCurrentView();
235 void updateCurrentView(FuncRequest const & cmd, DispatchResult & dr);
237 bool closeAllViews();
238 /// Things that need to be done when the OSes session manager
239 /// requests a log out.
240 bool prepareAllViewsForLogout();
241 /// read the given ui (menu/toolbar) file
242 bool readUIFile(QString const & name, bool include = false);
250 ReturnValues readUIFile(support::FileName const & ui_path);
252 void setGuiLanguage();
254 void reconfigure(std::string const & option);
256 /// This GuiView is the one receiving Clipboard and Selection
258 GuiView * current_view_;
265 extern GuiApplication * guiApp;
268 /// Absolute path to icon file
270 /// Swap the icon in RTL mode
272 /// Invert the icon in dark mode
276 /// \return the pixmap for the given path, name and extension.
277 /// in case of errors a warning is produced and an empty pixmap is returned.
278 QPixmap getPixmap(QString const & path, QString const & name, QString const & ext);
280 /// \return an icon for the given action.
281 QIcon getIcon(FuncRequest const & f, bool unknown, bool rtl = false);
284 GuiApplication * theGuiApp();
286 } // namespace frontend
289 #endif // GUIAPPLICATION_H