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 "frontends/Application.h"
17 #include "support/filetools.h"
19 #include <QApplication>
22 #include <QAbstractNativeEventFilter>
25 class QAbstractItemModel;
27 class QSessionManager;
48 /// The Qt main application class
50 There should be only one instance of this class. No Qt object
51 initialisation should be done before the instantiation of this class.
53 class GuiApplication : public QApplication, public Application
55 , public QAbstractNativeEventFilter
61 GuiApplication(int & argc, char ** argv);
64 /// \name Methods inherited from Application class
66 DispatchResult const & dispatch(FuncRequest const &) override;
67 void dispatch(FuncRequest const &, DispatchResult & dr) override;
68 FuncStatus getStatus(FuncRequest const & cmd) const override;
69 void restoreGuiSession() override;
70 Buffer const * updateInset(Inset const * inset) const override;
72 void exit(int status) override;
73 bool event(QEvent * e) override;
74 bool getRgbColor(ColorCode col, RGBColor & rgbcol) override;
75 std::string const hexName(ColorCode col) override;
76 void registerSocketCallback(int fd, SocketCallback func) override;
77 void unregisterSocketCallback(int fd) override;
78 bool searchMenu(FuncRequest const & func, docstring_list & names) const override;
79 bool hasBufferView() const override;
80 std::string inputLanguageCode() const override;
81 void handleKeyFunc(FuncCode action) override;
82 bool unhide(Buffer * buf) override;
86 bool getStatus(FuncRequest const & cmd, FuncStatus & status) const;
88 void hideDialogs(std::string const & name, Inset * inset) const;
93 Clipboard & clipboard();
95 Selection & selection();
97 FontLoader & fontLoader();
100 Toolbars const & toolbars() const;
102 Toolbars & toolbars();
104 Menus const & menus() const;
108 /// \name Methods inherited from QApplication class
110 bool notify(QObject * receiver, QEvent * event) override;
111 void commitData(QSessionManager & sm);
113 bool x11EventFilter(XEvent * ev) override;
114 #elif defined(QPA_XCB)
115 virtual bool nativeEventFilter(const QByteArray & eventType, void * message,
116 long * result) override;
120 /// Create the main window with given geometry settings.
121 /// \param geometry_arg: only for Windows platform.
122 /// \param optional id identifier.
123 void createView(QString const & geometry_arg = QString(),
124 bool autoShow = true, int id = 0);
125 /// FIXME: this method and the one above are quite ugly.
126 void createView(int id);
128 GuiView const * currentView() const { return current_view_; }
130 GuiView * currentView() { return current_view_; }
132 void setCurrentView(GuiView * view) { current_view_ = view; }
134 QList<int> viewIds() const;
136 /// Clear all session information.
140 ColorCache & colorCache();
142 QAbstractItemModel * languageModel();
144 /// return a suitable serif font name.
145 QString const romanFontName();
147 /// return a suitable sans serif font name.
148 QString const sansFontName();
150 /// return a suitable monospaced font name.
151 QString const typewriterFontName();
152 QFont const typewriterSystemFont();
155 void unregisterView(GuiView * gv);
157 GuiView & view(int id) const;
159 /// Current ratio between physical pixels and device-independent pixels
160 double pixelRatio() const;
162 /// How to load image files
163 support::search_mode imageSearchMode() const {
164 #if QT_VERSION >= 0x050000
165 return pixelRatio() > 1 ? support::check_hidpi : support::must_exist;
167 return support::must_exist;
171 /// return true if the key is part of a shortcut
172 bool queryKeySym(KeySymbol const & key, KeyModifier state) const;
174 void processKeySym(KeySymbol const & key, KeyModifier state);
175 /// return the status bar state string
176 docstring viewStatusMessage();
178 /// \name Methods to process FuncRequests
180 /// process the func request
181 void processFuncRequest(FuncRequest const &);
182 /// add a func request to the queue and process it asynchronously
183 /// \note As a side-effect this will also process the
184 /// func requests that were added to the queue before.
185 void processFuncRequestAsync(FuncRequest const &);
186 /// process the func requests in the queue
187 void processFuncRequestQueue();
188 /// process the func requests in the queue asynchronously
189 void processFuncRequestQueueAsync();
190 /// add a func request to the queue for later processing
191 void addToFuncRequestQueue(FuncRequest const &);
195 /// openFile: whether or not open a file if the file is not opened
196 /// switchToBuffer: whether or not switch to buffer if the buffer is
197 /// not the current buffer
198 void gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer);
200 /// Start a long operation with some cancel possibility (button or ESC)
201 void startLongOperation() override;
202 /// This needs to be periodically called to avoid freezing the GUI
203 bool longOperationCancelled() override;
204 /// Stop the long operation mode (i.e., release the GUI)
205 void stopLongOperation() override;
206 /// A started long operation is still in progress ?
207 bool longOperationStarted() override;
210 void execBatchCommands();
212 void socketDataReceived(int fd);
213 /// events to be triggered by Private::general_timer_ should go here
214 void handleRegularEvents();
216 void onLastWindowClosed();
218 void onLocaleChanged();
220 void slotProcessFuncRequestQueue() { processFuncRequestQueue(); }
224 void validateCurrentView();
226 void updateCurrentView(FuncRequest const & cmd, DispatchResult & dr);
228 bool closeAllViews();
229 /// Things that need to be done when the OSes session manager
230 /// requests a log out.
231 bool prepareAllViewsForLogout();
232 /// read the given ui (menu/toolbar) file
233 bool readUIFile(QString const & name, bool include = false);
241 ReturnValues readUIFile(support::FileName);
243 void setGuiLanguage();
245 void reconfigure(std::string const & option);
247 /// This GuiView is the one receiving Clipboard and Selection
249 GuiView * current_view_;
256 extern GuiApplication * guiApp;
258 /// \return the icon file name for the given action.
259 QString iconName(FuncRequest const & f, bool unknown);
261 /// \return the pixmap for the given path, name and extension.
262 /// in case of errors a warning is produced and an empty pixmap is returned.
263 QPixmap getPixmap(QString const & path, QString const & name, QString const & ext);
264 /// Load the file at \param path and convert it to a pixmap.
265 /// \return true on success otherwise invalidate the pixmap and return false.
266 /// The caller is responsible for error reporting.
267 bool getPixmap(QPixmap & pixmap, QString const & path);
269 /// \return an icon for the given action.
270 QIcon getIcon(FuncRequest const & f, bool unknown);
273 GuiApplication * theGuiApp();
275 } // namespace frontend
278 #endif // GUIAPPLICATION_H