1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995 Matthias Ettrich
7 * Copyright 1995-2001 The LyX Team.
9 * ======================================================
15 #pragma implementation
22 #include "ControlBibitem.h"
23 #include "ControlBibtex.h"
24 #include "ControlCharacter.h"
25 #include "ControlCitation.h"
26 #include "ControlCopyright.h"
27 #include "ControlCredits.h"
28 #include "ControlError.h"
29 #include "ControlInclude.h"
30 #include "ControlLog.h"
31 #include "ControlMinipage.h"
32 #include "ControlPreamble.h"
33 #include "ControlPrint.h"
34 #include "ControlRef.h"
35 #include "ControlSearch.h"
36 #include "ControlSplash.h"
37 #include "ControlTabularCreate.h"
38 #include "ControlUrl.h"
39 #include "ControlVCLog.h"
43 #include "combox.h" // needed for clean destruction of boost::scoped_ptr
44 #include "form_bibitem.h"
45 #include "form_bibtex.h"
46 #include "form_browser.h"
47 #include "form_character.h"
48 #include "form_citation.h"
49 #include "form_copyright.h"
50 #include "form_credits.h"
51 #include "form_error.h"
52 #include "form_include.h"
53 #include "form_minipage.h"
54 #include "form_preamble.h"
55 #include "form_print.h"
57 #include "form_search.h"
58 #include "form_splash.h"
59 #include "form_tabular_create.h"
62 #include "FormBibitem.h"
63 #include "FormBibtex.h"
64 #include "FormCharacter.h"
65 #include "FormCitation.h"
66 #include "FormCopyright.h"
67 #include "FormCredits.h"
68 #include "FormError.h"
69 #include "FormInclude.h"
71 #include "FormMinipage.h"
72 #include "FormPreamble.h"
73 #include "FormPrint.h"
75 #include "FormSearch.h"
76 #include "FormSplash.h"
77 #include "FormTabularCreate.h"
79 #include "FormVCLog.h"
81 #include "FormDocument.h"
82 #include "FormExternal.h"
83 #include "FormGraphics.h"
84 #include "FormIndex.h"
85 #include "FormMathsPanel.h"
86 #include "FormParagraph.h"
87 #include "FormPreferences.h"
88 #include "FormTabular.h"
91 // Signal enabling all visible popups to be redrawn if so desired.
92 // E.g., when the GUI colours have been remapped.
93 SigC::Signal0<void> Dialogs::redrawGUI;
95 Dialogs::Dialogs(LyXView * lv)
97 splash_.reset(new GUISplash<FormSplash>(*this));
99 add(new GUIBibitem<FormBibitem, xformsBC>(*lv, *this));
100 add(new GUIBibtex<FormBibtex, xformsBC>(*lv, *this));
101 add(new GUICharacter<FormCharacter, xformsBC>(*lv, *this));
102 add(new GUICitation<FormCitation, xformsBC>(*lv, *this));
103 add(new GUICopyright<FormCopyright, xformsBC>(*lv, *this));
104 add(new GUICredits<FormCredits, xformsBC>(*lv, *this));
105 add(new GUIError<FormError, xformsBC>(*lv, *this));
106 add(new GUIInclude<FormInclude, xformsBC>(*lv, *this));
107 add(new GUILog<FormLog, xformsBC>(*lv, *this));
108 add(new GUIMinipage<FormMinipage, xformsBC>(*lv, *this));
109 add(new GUIPreamble<FormPreamble, xformsBC>(*lv, *this));
110 add(new GUIPrint<FormPrint, xformsBC>(*lv, *this));
111 add(new GUIRef<FormRef, xformsBC>(*lv, *this));
112 add(new GUISearch<FormSearch, xformsBC>(*lv, *this));
113 add(new GUITabularCreate<FormTabularCreate, xformsBC>(*lv, *this));
114 add(new GUIUrl<FormUrl, xformsBC>(*lv, *this));
115 add(new GUIVCLog<FormVCLog, xformsBC>(*lv, *this));
117 add(new FormDocument(lv, this));
118 add(new FormExternal(lv, this));
119 add(new FormGraphics(lv, this));
120 add(new FormIndex(lv, this));
121 add(new FormMathsPanel(lv, this));
122 add(new FormParagraph(lv, this));
123 add(new FormPreferences(lv, this));
124 add(new FormTabular(lv, this));
125 add(new FormToc(lv, this));
127 // reduce the number of connections needed in
128 // dialogs by a simple connection here.
129 hideAll.connect(hideBufferDependent.slot());
132 /*****************************************************************************
134 Q. WHY does Dialogs::Dialogs pass `this' to dialog constructors?
136 A. To avoid a segfault.
137 The dialog constructors need to connect to their
138 respective showSomeDialog signal(*) but in order to do
139 that they need to get the address of the Dialogs instance
140 from LyXView::getDialogs(). However, since the Dialogs
141 instance is still being constructed at that time
142 LyXView::getDialogs() will *not* return the correct
143 address because it hasn't finished being constructed.
144 A Catch-22 situation (or is that the chicken and the egg...).
145 So to get around the problem we pass the address of
146 the newly created Dialogs instance using `this'.
148 (*) -- I'm using signals exclusively to guarantee that the gui code
149 remains hidden from the rest of the system. In fact the only
150 header related to dialogs that anything in the non-gui-specific
151 code gets to see is Dialogs.h! Even Dialogs.h doesn't know what a
152 FormCopyright class looks like or that its even going to be used!
154 No other gui dialog headers are seen outside of the gui-specific
155 directories! This ensures that the gui is completely separate from
156 the rest of LyX. All this through the use of a few simple signals.
157 BUT, the price is that during construction we need to connect the
158 implementations show() method to the showSomeDialog signal and this
159 requires that we have an instance of Dialogs and the problem mentioned
162 Almost all other dialogs should be able to operate using the same style
163 of signalling used for Copyright. Exceptions should be handled
164 by adding a specific show or update signal. For example, spellchecker
165 needs to set the next suspect word and its options/replacements so we
167 Signal0<void> updateSpellChecker;
169 Since we would have to have a
170 Signal0<void> showSpellChecker;
172 in order to just see the spellchecker and let the user push the [Start]
173 button then the updateSpellChecker signal will make the SpellChecker
174 dialog get the new word and replacements list from LyX. If you really,
175 really wanted to you could define a signal that would pass the new
176 word and replacements:
177 Signal2<void, string, vector<string> > updateSpellChecker;
179 (or something similar) but, why bother when the spellchecker can get
180 it anyway with a LyXFunc call or two. Besides if someone extends
181 what a dialog does then they also have to change code in the rest of
182 LyX to pass more parameters or get the extra info via a function
183 call anyway. Thus reducing the independence of the two code bases.
185 We don't need a separate update signal for each dialog because most of
186 them will be changed only when the buffer is changed (either by closing
187 the current open buffer or switching to another buffer in the current
188 LyXView -- different BufferView same LyXView or same BufferView same
191 So we minimise signals but maximise independence and programming
192 simplicity, understandability and maintainability. It's also
193 extremely easy to add support for Qt or gtk-- because they use
194 signals already. Guis that use callbacks, like xforms, must have their
195 code wrapped up like that in the form_copyright.[Ch] which is awkward
196 but will at least allow multiple instances of the same dialog.
198 Signals will also be a great help in controlling the splashscreen --
199 once signalled to hide it can disconnect from the signal and remove
202 LyXFuncs will be used for requesting/setting LyX internal info. This
203 will ensure that scripts or LyXServer-connected applications can all
204 have access to the same calls as the internal user-interface.
206 ******************************************************************************/