4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjornes
9 * \author Abdelrazak Younes
10 * \author Peter Kümmel
12 * Full author contact details are available in file CREDITS.
18 #include "frontends/Delegates.h"
20 #include "support/strfwd.h"
22 #include <QMainWindow>
26 class QDragEnterEvent;
34 namespace support { class FileName; }
55 * GuiView - Qt main LyX window
57 * This class represents the main LyX window and provides
58 * accessor functions to its content.
60 * Note: a QObject emits a destroyed(QObject *) Qt signal when it
61 * is deleted. This might be useful for closing other dialogs
62 * depending on a given GuiView.
64 class GuiView : public QMainWindow, public GuiBufferViewDelegate,
65 public GuiBufferDelegate
70 /// create a main window of the given dimensions
75 /// closes the view such that the view knows that is closed
76 /// programmatically and not by the user clicking the x.
77 bool closeScheduled();
79 /// Things that need to be done when the OSes session manager
80 /// requests a log out.
81 bool prepareAllBuffersForLogout();
83 int id() const { return id_; }
88 /// Signal that the any "auto" minibuffer can be closed now.
89 void resetCommandExecute();
91 /// \name Generic accessor functions
93 /// The current BufferView refers to the BufferView that has the focus,
94 /// including for example the one that is created when you use the
95 /// advanced search and replace pane.
96 /// \return the currently selected buffer view.
97 BufferView * currentBufferView();
98 BufferView const * currentBufferView() const;
100 /// The document BufferView always refers to the view's main document
101 /// BufferView. So, even if the BufferView in e.g., the advanced
102 /// search and replace pane has the focus.
103 /// \return the current document buffer view.
104 BufferView * documentBufferView();
105 BufferView const * documentBufferView() const;
107 void newDocument(std::string const & filename,
108 std::string templatefile = std::string(),
109 bool fromTemplate = false);
111 /// display a message in the view
112 /// could be called from any thread
113 void message(docstring const &);
115 bool getStatus(FuncRequest const & cmd, FuncStatus & flag);
116 /// dispatch command.
117 /// \return true if the \c FuncRequest has been dispatched.
118 void dispatch(FuncRequest const & cmd, DispatchResult & dr);
121 /// Update the completion popup and the inline completion state.
122 /// If \c start is true, then a new completion might be started.
123 /// If \c keep is true, an active completion will be kept active
124 /// even though the cursor moved. The update flags of \c cur might
126 void updateCompletion(Cursor & cur, bool start, bool keep);
130 bool hasFocus() const;
133 void focusInEvent(QFocusEvent * e);
134 /// Add a Buffer to the View
135 /// \param b Buffer to set.
136 /// \param switch_to Whether to set it to the current workarea.
137 void setBuffer(Buffer * b, bool switch_to = true);
139 /// load a document into the current workarea.
140 Buffer * loadDocument(
141 support::FileName const & name, ///< File to load.
142 bool tolastfiles = true ///< append to the "Open recent" menu?
145 /// add toolbar, if newline==true, add a toolbar break before the toolbar
146 GuiToolbar * makeToolbar(ToolbarInfo const & tbinfo, bool newline);
147 void updateStatusBar();
149 /// updates the possible layouts selectable
150 void updateLayoutList();
151 void updateToolbars();
154 LayoutBox * getLayoutDialog() const;
156 /// hides the workarea and makes sure it is clean
157 bool hideWorkArea(GuiWorkArea * wa);
158 /// closes workarea; close buffer only if no other workareas point to it
159 bool closeWorkArea(GuiWorkArea * wa);
160 /// closes the buffer
161 bool closeBuffer(Buffer & buf);
163 void openDocument(std::string const & filename);
165 void importDocument(std::string const &);
167 /// \name GuiBufferDelegate.
169 void resetAutosaveTimers();
170 // shows an error list
171 // if from_master is true, show master's error list
172 void errors(std::string const &, bool from_master = false);
173 void structureChanged();
174 void updateTocItem(std::string const &, DocIterator const &);
178 TocModels & tocModels();
180 /// called on timeout
183 /// check for external change of any opened buffer, mainly for svn usage
184 void checkExternallyModifiedBuffers();
186 /** redraw \c inset in all the BufferViews in which it is currently
187 * visible. If successful return a pointer to the owning Buffer.
189 Buffer const * updateInset(Inset const *);
191 /// \return the \c Workarea associated to \p Buffer
192 /// \retval 0 if no \c WorkArea is found.
193 GuiWorkArea * workArea(Buffer & buffer);
194 /// \return the \c Workarea at index \c index
195 GuiWorkArea * workArea(int index);
197 /// Add a \c WorkArea
198 /// \return the \c Workarea associated to \p Buffer
199 /// \retval 0 if no \c WorkArea is found.
200 GuiWorkArea * addWorkArea(Buffer & buffer);
201 /// \param work_area The current \c WorkArea, or \c NULL
202 void setCurrentWorkArea(GuiWorkArea * work_area);
204 void removeWorkArea(GuiWorkArea * work_area);
205 /// return the current WorkArea (the one that has the focus).
206 GuiWorkArea const * currentWorkArea() const;
207 /// return the current WorkArea (the one that has the focus).
208 GuiWorkArea * currentWorkArea();
210 /// return the current document WorkArea (it may not have the focus).
211 GuiWorkArea const * currentMainWorkArea() const;
212 /// return the current document WorkArea (it may not have the focus).
213 GuiWorkArea * currentMainWorkArea();
215 /// Current ratio between physical pixels and device-independent pixels
216 double pixelRatio() const;
220 void triggerShowDialog(QString const & qname, QString const & qdata, Inset * inset);
221 // emitted when the work area or its buffer view changed
222 void bufferViewChanged();
228 /// clear any temporary message and replace with current status.
231 void updateWindowTitle(GuiWorkArea * wa);
233 void disableShellEscape();
237 void resetWindowTitle();
240 void checkCancelBackground();
242 void on_currentWorkAreaChanged(GuiWorkArea *);
244 void onBufferViewChanged();
246 void on_lastWorkAreaRemoved();
248 /// For completion of autosave or export threads.
249 void processingThreadStarted();
250 void processingThreadFinished();
251 void autoSaveThreadFinished();
253 /// must be called in GUI thread
254 void doShowDialog(QString const & qname, QString const & qdata,
257 /// must be called from GUI thread
258 void updateStatusBarMessage(QString const & str);
259 void clearMessageText();
262 void toolBarPopup(const QPoint &pos);
265 /// Open given child document in current buffer directory.
266 void openChildDocument(std::string const & filename);
267 /// Close current document buffer.
269 /// Close all document buffers.
270 bool closeBufferAll();
272 TabWorkArea * addTabWorkArea();
274 /// connect to signals in the given BufferView
275 void connectBufferView(BufferView & bv);
276 /// disconnect from signals in the given BufferView
277 void disconnectBufferView();
278 /// connect to signals in the given buffer
279 void connectBuffer(Buffer & buf);
280 /// disconnect from signals in the given buffer
281 void disconnectBuffer();
283 void dragEnterEvent(QDragEnterEvent * ev);
285 void dropEvent(QDropEvent * ev);
286 /// make sure we quit cleanly
287 void closeEvent(QCloseEvent * e);
289 void showEvent(QShowEvent *);
291 /// in order to catch Tab key press.
292 bool event(QEvent * e);
293 bool focusNextPrevChild(bool);
296 bool goToFileRow(std::string const & argument);
299 class GuiViewPrivate;
304 /// dialogs for this view
310 /// Hide all visible dialogs
311 void hideAll() const;
313 /// Update all visible dialogs.
315 * Check the status of all visible dialogs and disable or reenable
316 * them as appropriate.
318 * Disabling is needed for example when a dialog is open and the
319 * cursor moves to a position where the corresponding inset is not
322 void updateDialogs();
324 /** Show dialog could be called from arbitrary threads.
325 \param name == "bibtex", "citation" etc; an identifier used to
326 launch a particular dialog.
327 \param data is a string representation of the Inset contents.
328 It is often little more than the output from Inset::write.
329 It is passed to, and parsed by, the frontend dialog.
330 Several of these dialogs do not need any data,
331 so it defaults to string().
332 \param inset ownership is _not_ passed to the frontend dialog.
333 It is stored internally and used by the kernel to ascertain
334 what to do with the FuncRequest dispatched from the frontend
335 dialog on 'Apply'; should it be used to create a new inset at
336 the current cursor position or modify an existing, 'open' inset?
338 void showDialog(std::string const & name,
339 std::string const & data, Inset * inset = 0);
341 /** \param name == "citation", "bibtex" etc; an identifier used
342 to reset the contents of a particular dialog with \param data.
343 See the comments to 'show', above.
345 void updateDialog(std::string const & name, std::string const & data);
347 /** All Dialogs of the given \param name will be closed if they are
348 connected to the given \param inset.
350 void hideDialog(std::string const & name, Inset * inset);
352 void disconnectDialog(std::string const & name);
354 bool develMode() const { return devel_mode_; }
357 /// Saves the layout and geometry of the window
358 void saveLayout() const;
359 /// Saves the settings of toolbars and all dialogs
360 void saveUISettings() const;
362 bool restoreLayout();
364 GuiToolbar * toolbar(std::string const & name);
366 void constructToolbars();
370 void initToolbar(std::string const & name);
371 /// Update lock (all) toolbars position
372 void updateLockToolbars();
374 bool lfunUiToggle(std::string const & ui_component);
376 void toggleFullScreen();
378 void insertLyXFile(docstring const & fname, bool ignorelang = false);
380 /// Open Export As ... dialog. \p iformat is the format the
381 /// filter is initially set to.
382 bool exportBufferAs(Buffer & b, docstring const & iformat);
387 LV_WRITE_AS_TEMPLATE,
391 /// Get a path for LFUN_BUFFER_WRITE_AS_TEMPLATE
392 std::string const getTemplatesPath(Buffer & buf);
393 /// Save a buffer as a new file.
395 Write a buffer to a new file name and rename the buffer
396 according to the new file name.
398 This function is e.g. used by menu callbacks and
399 LFUN_BUFFER_WRITE_AS.
401 If 'newname' is empty, the user is asked via a
402 dialog for the buffer's new name and location.
404 If 'newname' is non-empty and has an absolute path, that is used.
405 Otherwise the base directory of the buffer is used as the base
406 for any relative path in 'newname'.
408 \p kind controls what is done besides the pure renaming:
409 * LV_WRITE_AS => The buffer is written without version control actions.
410 * LV_VC_RENAME => The file is renamed in version control.
411 * LV_VC_COPY => The file is copied in version control.
413 bool renameBuffer(Buffer & b, docstring const & newname,
414 RenameKind kind = LV_WRITE_AS);
416 bool saveBuffer(Buffer & b);
417 /// save and rename buffer to fn. If fn is empty, the buffer
418 /// is just saved as the filename it already has.
419 bool saveBuffer(Buffer & b, support::FileName const & fn);
420 /// closes a workarea, if close_buffer is true the buffer will
421 /// also be released, otherwise the buffer will be hidden.
422 bool closeWorkArea(GuiWorkArea * wa, bool close_buffer);
423 /// closes the tabworkarea and all tabs. If we are in a close event,
424 /// all buffers will be closed, otherwise they will be hidden.
425 bool closeTabWorkArea(TabWorkArea * twa);
426 /// gives the user the possibility to save his work
427 /// or to discard the changes. If hiding is true, the
428 /// document will be reloaded.
429 bool saveBufferIfNeeded(Buffer & buf, bool hiding);
430 /// closes all workareas
431 bool closeWorkAreaAll();
432 /// write all open workareas into the session file
433 void writeSession() const;
434 /// is the buffer in this workarea also shown in another tab ?
435 /// This tab can either be in the same view or in another one.
436 bool inMultiTabs(GuiWorkArea * wa);
437 /// is the buffer shown in some other view ?
438 bool inOtherView(Buffer & buf);
440 enum NextOrPrevious {
445 void gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move);
447 /// Is the dialog currently visible?
448 bool isDialogVisible(std::string const & name) const;
450 Dialog * findOrBuild(std::string const & name, bool hide_it);
452 Dialog * build(std::string const & name);
454 bool reloadBuffer(Buffer & buffer);
456 void dispatchVC(FuncRequest const & cmd, DispatchResult & dr);
458 void dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr);
465 /// flag to avoid two concurrent close events.
467 /// if the view is busy the cursor shouldn't blink for instance.
468 /// This counts the number of times more often we called
469 /// setBusy(true) compared to setBusy(false), so we can nest
470 /// functions that call setBusy;
473 /// Request to open the command toolbar if it is "auto"
474 bool command_execute_;
475 /// Request to give focus to minibuffer
476 bool minibuffer_focus_;
478 /// Statusbar widget that shows shell-escape status
479 QLabel * shell_escape_;
480 /// Statusbar widget that shows read-only status
482 /// Statusbar widget that shows version control status
483 QLabel * version_control_;
485 /// The rate from which the actual zoom value is calculated
486 /// from the default zoom pref
487 double zoom_ratio_ = 1.0;
488 /// Minimum zoom percentage
489 static int const zoom_min_ = 10;
491 // movability flag of all toolbars
492 bool toolbarsMovable_;
499 class SEMenu : public QMenu
503 explicit SEMenu(QWidget * parent);
506 void showMenu(QPoint const &) { exec(QCursor::pos()); }
509 } // namespace frontend