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>
25 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,
110 /// display a message in the view
111 /// could be called from any thread
112 void message(docstring const &);
114 bool getStatus(FuncRequest const & cmd, FuncStatus & flag);
115 /// dispatch command.
116 /// \return true if the \c FuncRequest has been dispatched.
117 void dispatch(FuncRequest const & cmd, DispatchResult & dr);
119 void restartCursor();
120 /// Update the completion popup and the inline completion state.
121 /// If \c start is true, then a new completion might be started.
122 /// If \c keep is true, an active completion will be kept active
123 /// even though the cursor moved. The update flags of \c cur might
125 void updateCompletion(Cursor & cur, bool start, bool keep);
129 bool hasFocus() const;
132 void focusInEvent(QFocusEvent * e);
133 /// set a buffer to the current workarea.
134 void setBuffer(Buffer * b); ///< \c Buffer to set.
136 /// load a document into the current workarea.
137 Buffer * loadDocument(
138 support::FileName const & name, ///< File to load.
139 bool tolastfiles = true ///< append to the "Open recent" menu?
142 /// add toolbar, if newline==true, add a toolbar break before the toolbar
143 GuiToolbar * makeToolbar(ToolbarInfo const & tbinfo, bool newline);
144 void updateStatusBar();
146 /// updates the possible layouts selectable
147 void updateLayoutList();
148 void updateToolbars();
149 QMenu * createPopupMenu();
152 LayoutBox * getLayoutDialog() const;
154 /// hides the workarea and makes sure it is clean
155 bool hideWorkArea(GuiWorkArea * wa);
156 /// closes workarea; close buffer only if no other workareas point to it
157 bool closeWorkArea(GuiWorkArea * wa);
158 /// closes the buffer
159 bool closeBuffer(Buffer & buf);
161 void openDocument(std::string const & filename);
163 void importDocument(std::string const &);
165 /// \name GuiBufferDelegate.
167 void resetAutosaveTimers();
168 void errors(std::string const &, bool from_master = false);
169 void structureChanged();
170 void updateTocItem(std::string const &, DocIterator const &);
174 TocModels & tocModels();
176 /// called on timeout
179 /// check for external change of any opened buffer, mainly for svn usage
180 void checkExternallyModifiedBuffers();
182 /** redraw \c inset in all the BufferViews in which it is currently
183 * visible. If successful return a pointer to the owning Buffer.
185 Buffer const * updateInset(Inset const *);
187 /// \return the \c Workarea associated to \p Buffer
188 /// \retval 0 if no \c WorkArea is found.
189 GuiWorkArea * workArea(Buffer & buffer);
190 /// \return the \c Workarea at index \c index
191 GuiWorkArea * workArea(int index);
193 /// Add a \c WorkArea
194 /// \return the \c Workarea associated to \p Buffer
195 /// \retval 0 if no \c WorkArea is found.
196 GuiWorkArea * addWorkArea(Buffer & buffer);
197 /// \param work_area The current \c WorkArea, or \c NULL
198 void setCurrentWorkArea(GuiWorkArea * work_area);
200 void removeWorkArea(GuiWorkArea * work_area);
201 /// return the current WorkArea (the one that has the focus).
202 GuiWorkArea const * currentWorkArea() const;
203 /// return the current WorkArea (the one that has the focus).
204 GuiWorkArea * currentWorkArea();
206 /// return the current document WorkArea (it may not have the focus).
207 GuiWorkArea const * currentMainWorkArea() const;
208 /// return the current document WorkArea (it may not have the focus).
209 GuiWorkArea * currentMainWorkArea();
211 /// Current ratio between physical pixels and device-independent pixels
212 double pixelRatio() const;
216 void triggerShowDialog(QString const & qname, QString const & qdata, Inset * inset);
217 // emitted when the work area or its buffer view changed
218 void bufferViewChanged();
224 /// clear any temporary message and replace with current status.
227 void updateWindowTitle(GuiWorkArea * wa);
231 void resetWindowTitle();
234 void on_currentWorkAreaChanged(GuiWorkArea *);
236 void on_lastWorkAreaRemoved();
238 /// slots to change the icon size
239 void smallSizedIcons();
240 void normalSizedIcons();
241 void bigSizedIcons();
242 void hugeSizedIcons();
243 void giantSizedIcons();
245 /// For completion of autosave or export threads.
246 void processingThreadStarted();
247 void processingThreadFinished();
248 void autoSaveThreadFinished();
250 /// must be called in GUI thread
251 void doShowDialog(QString const & qname, QString const & qdata,
254 /// must be called from GUI thread
255 void updateStatusBarMessage(QString const & str);
256 void clearMessageText();
259 /// Open given child document in current buffer directory.
260 void openChildDocument(std::string const & filename);
261 /// Close current document buffer.
263 /// Close all document buffers.
264 bool closeBufferAll();
266 TabWorkArea * addTabWorkArea();
268 /// connect to signals in the given BufferView
269 void connectBufferView(BufferView & bv);
270 /// disconnect from signals in the given BufferView
271 void disconnectBufferView();
272 /// connect to signals in the given buffer
273 void connectBuffer(Buffer & buf);
274 /// disconnect from signals in the given buffer
275 void disconnectBuffer();
277 void dragEnterEvent(QDragEnterEvent * ev);
279 void dropEvent(QDropEvent * ev);
280 /// make sure we quit cleanly
281 void closeEvent(QCloseEvent * e);
283 void showEvent(QShowEvent *);
285 /// in order to catch Tab key press.
286 bool event(QEvent * e);
287 bool focusNextPrevChild(bool);
290 bool goToFileRow(std::string const & argument);
293 class GuiViewPrivate;
298 /// dialogs for this view
304 /// Hide all visible dialogs
305 void hideAll() const;
307 /// Update all visible dialogs.
309 * Check the status of all visible dialogs and disable or reenable
310 * them as appropriate.
312 * Disabling is needed for example when a dialog is open and the
313 * cursor moves to a position where the corresponding inset is not
316 void updateDialogs();
318 /** Show dialog could be called from arbitrary threads.
319 \param name == "bibtex", "citation" etc; an identifier used to
320 launch a particular dialog.
321 \param data is a string representation of the Inset contents.
322 It is often little more than the output from Inset::write.
323 It is passed to, and parsed by, the frontend dialog.
324 Several of these dialogs do not need any data,
325 so it defaults to string().
326 \param inset ownership is _not_ passed to the frontend dialog.
327 It is stored internally and used by the kernel to ascertain
328 what to do with the FuncRequest dispatched from the frontend
329 dialog on 'Apply'; should it be used to create a new inset at
330 the current cursor position or modify an existing, 'open' inset?
332 void showDialog(std::string const & name,
333 std::string const & data, Inset * inset = 0);
335 /** \param name == "citation", "bibtex" etc; an identifier used
336 to reset the contents of a particular dialog with \param data.
337 See the comments to 'show', above.
339 void updateDialog(std::string const & name, std::string const & data);
341 /** All Dialogs of the given \param name will be closed if they are
342 connected to the given \param inset.
344 void hideDialog(std::string const & name, Inset * inset);
346 void disconnectDialog(std::string const & name);
349 /// Saves the layout and geometry of the window
350 void saveLayout() const;
351 /// Saves the settings of toolbars and all dialogs
352 void saveUISettings() const;
354 bool restoreLayout();
356 GuiToolbar * toolbar(std::string const & name);
358 void constructToolbars();
362 void initToolbar(std::string const & name);
364 bool lfunUiToggle(std::string const & ui_component);
366 void toggleFullScreen();
368 void insertLyXFile(docstring const & fname);
370 /// Open Export As ... dialog. \p iformat is the format the
371 /// filter is initially set to.
372 bool exportBufferAs(Buffer & b, docstring const & iformat);
375 enum RenameKind { LV_WRITE_AS, LV_VC_RENAME, LV_VC_COPY };
376 /// Save a buffer as a new file.
378 Write a buffer to a new file name and rename the buffer
379 according to the new file name.
381 This function is e.g. used by menu callbacks and
382 LFUN_BUFFER_WRITE_AS.
384 If 'newname' is empty, the user is asked via a
385 dialog for the buffer's new name and location.
387 If 'newname' is non-empty and has an absolute path, that is used.
388 Otherwise the base directory of the buffer is used as the base
389 for any relative path in 'newname'.
391 \p kind controls what is done besides the pure renaming:
392 * LV_WRITE_AS => The buffer is written without version control actions.
393 * LV_VC_RENAME => The file is renamed in version control.
394 * LV_VC_COPY => The file is copied in version control.
396 bool renameBuffer(Buffer & b, docstring const & newname,
397 RenameKind kind = LV_WRITE_AS);
399 bool saveBuffer(Buffer & b);
400 /// save and rename buffer to fn. If fn is empty, the buffer
401 /// is just saved as the filename it already has.
402 bool saveBuffer(Buffer & b, support::FileName const & fn);
403 /// closes a workarea, if close_buffer is true the buffer will
404 /// also be released, otherwise the buffer will be hidden.
405 bool closeWorkArea(GuiWorkArea * wa, bool close_buffer);
406 /// closes the tabworkarea and all tabs. If we are in a close event,
407 /// all buffers will be closed, otherwise they will be hidden.
408 bool closeTabWorkArea(TabWorkArea * twa);
409 /// gives the user the possibility to save his work
410 /// or to discard the changes. If hiding is true, the
411 /// document will be reloaded.
412 bool saveBufferIfNeeded(Buffer & buf, bool hiding);
413 /// closes all workareas
414 bool closeWorkAreaAll();
415 /// write all open workareas into the session file
416 void writeSession() const;
417 /// is the buffer in this workarea also shown in another tab ?
418 /// This tab can either be in the same view or in another one.
419 bool inMultiTabs(GuiWorkArea * wa);
420 /// is the buffer shown in some other view ?
421 bool inOtherView(Buffer & buf);
423 enum NextOrPrevious {
428 void gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move);
430 /// Is the dialog currently visible?
431 bool isDialogVisible(std::string const & name) const;
433 Dialog * findOrBuild(std::string const & name, bool hide_it);
435 Dialog * build(std::string const & name);
437 bool reloadBuffer(Buffer & buffer);
439 void dispatchVC(FuncRequest const & cmd, DispatchResult & dr);
441 void dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr);
448 /// flag to avoid two concurrent close events.
450 /// if the view is busy the cursor shouldn't blink for instance.
451 /// This counts the number of times more often we called
452 /// setBusy(true) compared to setBusy(false), so we can nest
453 /// functions that call setBusy;
456 /// Request to open the command toolbar if it is "auto"
457 bool command_execute_;
458 /// Request to give focus to minibuffer
459 bool minibuffer_focus_;
461 /// Statusbar widget that shows read-only status
463 /// Statusbar widget that shows version control status
464 QLabel * version_control_;
466 /// Minimum zoom percentage
467 static unsigned int const zoom_min_ = 10;
471 } // namespace frontend