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remove debugging code I accidentally committed
[lyx.git] / src / frontends / xforms / FormBase.C
1 /**
2  * \file FormBase.C
3  * Copyright 2000-2001 The LyX Team.
4  * See the file COPYING.
5  *
6  * \author Angus Leeming, a.leeming@ic.ac.uk
7  */
8
9 #include <config.h>
10
11 #ifdef __GNUG__
12 #pragma implementation
13 #endif
14
15 #include "Dialogs.h"
16 #include "FormBase.h"
17 #include "xformsBC.h"
18 #include "xforms_resize.h"
19 #include "Tooltips.h"
20 #include "support/LAssert.h"
21 #include FORMS_H_LOCATION
22
23 extern "C" {
24
25 // Callback function invoked by xforms when the dialog is closed by the
26 // window manager
27 static int C_WMHideCB(FL_FORM * form, void *);
28
29 // Callback function invoked by the xforms pre- and post-handler routines
30 static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
31
32 } // extern "C"
33
34
35 FormBase::FormBase(ControlButtons & c, Dialogs & d,
36                    string const & t, bool allowResize)
37         : ViewBC<xformsBC>(c), minw_(0), minh_(0), allow_resize_(allowResize),
38           title_(t), tooltips_(new Tooltips(d))
39 {}
40
41
42 FormBase::~FormBase()
43 {
44         delete tooltips_;
45 }
46
47
48 Tooltips & FormBase::tooltips()
49 {
50         return *tooltips_;
51 }
52
53
54 void FormBase::redraw()
55 {
56         if (form() && form()->visible)
57                 fl_redraw_form(form());
58 }
59
60
61 void FormBase::show()
62 {
63         if (!form()) {
64                 build();
65         }
66
67         // use minw_ to flag whether the dialog has ever been shown
68         // (Needed now that build() is/should be called from the controller)
69         if (minw_ == 0) {
70                 double const scale = scale_to_fit_tabs(form());
71                 if (scale > 1.001)
72                         scale_form(form(), scale);
73
74                 bc().refresh();
75
76                 // work around dumb xforms sizing bug
77                 minw_ = form()->w;
78                 minh_ = form()->h;
79
80                 fl_set_form_atclose(form(), C_WMHideCB, 0);
81         }
82
83         fl_freeze_form(form());
84         update();  // make sure its up-to-date
85         fl_unfreeze_form(form());
86
87         if (form()->visible) {
88                 fl_raise_form(form());
89                 /* This XMapWindow() will hopefully ensure that
90                  * iconified dialogs are de-iconified. Mad props
91                  * out to those crazy Xlib guys for forgetting a
92                  * XDeiconifyWindow(). At least WindowMaker, when
93                  * being notified of the redirected MapRequest will
94                  * specifically de-iconify. From source, fvwm2 seems
95                  * to do the same.
96                  */
97                 XMapWindow(fl_get_display(), form()->window);
98         } else {
99                 // calls to fl_set_form_minsize/maxsize apply only to the next
100                 // fl_show_form(), so this comes first.
101                 fl_set_form_minsize(form(), minw_, minh_);
102                 if (!allow_resize_)
103                         fl_set_form_maxsize(form(), minw_, minh_);
104
105                 fl_show_form(form(),
106                              FL_PLACE_MOUSE | FL_FREE_SIZE,
107                              (controller_.IconifyWithMain() ? FL_TRANSIENT : 0),
108                              title_.c_str());
109         }
110
111         tooltips().set();
112 }
113
114
115 void FormBase::hide()
116 {
117         // xforms sometimes tries to process a hint-type MotionNotify, and
118         // use XQueryPointer, without verifying if the window still exists.
119         // So we try to clear out motion events in the queue before the
120         // DestroyNotify
121         XSync(fl_get_display(), false);
122
123         if (form() && form()->visible)
124                 fl_hide_form(form());
125 }
126
127
128 void FormBase::setPrehandler(FL_OBJECT * ob)
129 {
130         lyx::Assert(ob);
131         fl_set_object_prehandler(ob, C_PrehandlerCB);
132 }
133
134
135 void FormBase::InputCB(FL_OBJECT * ob, long data)
136 {
137         // It is possible to set the choice to 0 when using the
138         // keyboard shortcuts. This work-around deals with the problem.
139         if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
140                 fl_set_choice(ob, 1);
141         }
142
143         bc().input(input(ob, data));
144 }
145
146
147 ButtonPolicy::SMInput FormBase::input(FL_OBJECT *, long)
148 {
149         return ButtonPolicy::SMI_VALID;
150 }
151
152
153 namespace {
154
155 FormBase * GetForm(FL_OBJECT * ob)
156 {
157         lyx::Assert(ob && ob->form && ob->form->u_vdata);
158         FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
159         return ptr;
160 }
161
162 } // namespace anon
163
164
165 extern "C" {
166
167 void C_FormBaseApplyCB(FL_OBJECT * ob, long)
168 {
169         GetForm(ob)->ApplyButton();
170 }
171
172
173 void C_FormBaseOKCB(FL_OBJECT * ob, long)
174 {
175         GetForm(ob)->OKButton();
176 }
177
178
179 void C_FormBaseCancelCB(FL_OBJECT * ob, long)
180 {
181         FormBase * form = GetForm(ob);
182         form->CancelButton();
183 }
184
185
186 void C_FormBaseRestoreCB(FL_OBJECT * ob, long)
187 {
188         GetForm(ob)->RestoreButton();
189 }
190
191
192 void C_FormBaseInputCB(FL_OBJECT * ob, long d)
193 {
194         GetForm(ob)->InputCB(ob, d);
195 }
196
197
198 static int C_WMHideCB(FL_FORM * form, void *)
199 {
200         // Close the dialog cleanly, even if the WM is used to do so.
201         lyx::Assert(form && form->u_vdata);
202         FormBase * ptr = static_cast<FormBase *>(form->u_vdata);
203         ptr->CancelButton();
204         return FL_CANCEL;
205 }
206
207 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
208                           FL_Coord, FL_Coord, int key, void *)
209 {
210         // Note that the return value is important in the pre-emptive handler.
211         // Don't return anything other than 0.
212         lyx::Assert(ob);
213
214         // Don't Assert this one, as it can happen quite naturally when things
215         // are being deleted in the d-tor.
216         //Assert(ob->form);
217         if (!ob->form) return 0;
218
219         FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
220
221         if (ptr)
222                 ptr->PrehandlerCB(ob, event, key);
223
224         return 0;
225 }
226
227 } // extern "C"