src/frontends/xforms/FormBaseDeprecated.C

   1 /**
   2  * \file FormBaseDeprecated.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 "FormBaseDeprecated.h"
  17 #include "xformsBC.h"
  18 #include "GUIRunTime.h"
  19 #include "Tooltips.h"
  20 #include "LyXView.h"
  21 #include "lyxrc.h"
  22 #include "support/LAssert.h"
  23
  24 using SigC::slot;
  25
  26 extern "C" {
  27
  28 // Callback function invoked by xforms when the dialog is closed by the
  29 // window manager
  30 static int C_WMHideCB(FL_FORM *, void *);
  31
  32 // Callback function invoked by the xforms pre- and post-handler routines
  33 static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
  34
  35 } // extern "C"
  36
  37
  38 FormBaseDeprecated::FormBaseDeprecated(LyXView * lv, Dialogs * d,
  39                                        string const & t, bool allowResize)
  40         : lv_(lv), d_(d), h_(0), r_(0), title_(t),
  41           minw_(0), minh_(0), allow_resize_(allowResize),
  42           tooltips_(new Tooltips)
  43 {
  44         lyx::Assert(lv && d);
  45 }
  46
  47
  48 FormBaseDeprecated::~FormBaseDeprecated()
  49 {
  50         delete tooltips_;
  51 }
  52
  53
  54 Tooltips & FormBaseDeprecated::tooltips()
  55 {
  56         return *tooltips_;
  57 }
  58
  59
  60 void FormBaseDeprecated::redraw()
  61 {
  62         if (form() && form()->visible)
  63                 fl_redraw_form(form());
  64 }
  65
  66
  67 void FormBaseDeprecated::connect()
  68 {
  69         fl_set_form_minsize(form(), minw_, minh_);
  70         r_ = Dialogs::redrawGUI.connect(slot(this,&FormBaseDeprecated::redraw));
  71 }
  72
  73
  74 void FormBaseDeprecated::disconnect()
  75 {
  76         h_.disconnect();
  77         r_.disconnect();
  78 }
  79
  80
  81 void FormBaseDeprecated::show()
  82 {
  83         if (!form()) {
  84                 build();
  85
  86                 bc().refresh();
  87
  88                 // work around dumb xforms sizing bug
  89                 minw_ = form()->w;
  90                 minh_ = form()->h;
  91
  92                 fl_set_form_atclose(form(), C_WMHideCB, 0);
  93         }
  94
  95         fl_freeze_form(form());
  96         update();  // make sure its up-to-date
  97         fl_unfreeze_form(form());
  98
  99         if (form()->visible) {
 100                 fl_raise_form(form());
 101                 /* This XMapWindow() will hopefully ensure that
 102                  * iconified dialogs are de-iconified. Mad props
 103                  * out to those crazy Xlib guys for forgetting a
 104                  * XDeiconifyWindow(). At least WindowMaker, when
 105                  * being notified of the redirected MapRequest will
 106                  * specifically de-iconify. From source, fvwm2 seems
 107                  * to do the same.
 108                  */
 109                 XMapWindow(fl_get_display(), form()->window);
 110         } else {
 111                 connect();
 112
 113                 // calls to fl_set_form_minsize/maxsize apply only to the next
 114                 // fl_show_form(), so this comes first.
 115                 fl_set_form_minsize(form(), minw_, minh_);
 116                 if (!allow_resize_)
 117                         fl_set_form_maxsize(form(), minw_, minh_);
 118
 119                 fl_show_form(form(),
 120                              FL_PLACE_MOUSE | FL_FREE_SIZE,
 121                              (lyxrc.dialogs_iconify_with_main ? FL_TRANSIENT : 0),
 122                              title_.c_str());
 123         }
 124
 125         tooltips().set();
 126 }
 127
 128
 129 void FormBaseDeprecated::hide()
 130 {
 131         // xforms sometimes tries to process a hint-type MotionNotify, and
 132         // use XQueryPointer, without verifying if the window still exists.
 133         // So we try to clear out motion events in the queue before the
 134         // DestroyNotify
 135         XSync(fl_get_display(), false);
 136         GUIRunTime::processEvents();
 137
 138         if (form() && form()->visible) {
 139                 // some dialogs might do things to the form first
 140                 // such as the nested tabfolder problem in Preferences
 141                 disconnect();
 142                 fl_hide_form(form());
 143         }
 144 }
 145
 146
 147 void FormBaseDeprecated::setPrehandler(FL_OBJECT * ob)
 148 {
 149         lyx::Assert(ob);
 150         fl_set_object_prehandler(ob, C_PrehandlerCB);
 151 }
 152
 153
 154 void FormBaseDeprecated::WMHideCB()
 155 {
 156         hide();
 157         bc().hide();
 158 }
 159
 160
 161 void FormBaseDeprecated::ApplyCB()
 162 {
 163         apply();
 164         bc().apply();
 165 }
 166
 167
 168 void FormBaseDeprecated::OKCB()
 169 {
 170         ok();
 171         bc().ok();
 172 }
 173
 174
 175 void FormBaseDeprecated::CancelCB()
 176 {
 177         cancel();
 178         bc().cancel();
 179 }
 180
 181
 182 void FormBaseDeprecated::InputCB(FL_OBJECT * ob, long data)
 183 {
 184         // It is possible to set the choice to 0 when using the
 185         // keyboard shortcuts. This work-around deals with the problem.
 186         if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
 187                 fl_set_choice(ob, 1);
 188         }
 189
 190         bc().valid(input(ob, data));
 191 }
 192
 193
 194 void FormBaseDeprecated::RestoreCB()
 195 {
 196         bc().restore();
 197         restore();
 198 }
 199
 200
 201 FormBaseBI::FormBaseBI(LyXView * lv, Dialogs * d, string const & t,
 202                        bool allowResize)
 203         : FormBaseDeprecated(lv, d, t, allowResize)
 204 {}
 205
 206
 207 void FormBaseBI::connect()
 208 {
 209         h_ = d_->hideAll.connect(slot(this, &FormBaseBI::hide));
 210         FormBaseDeprecated::connect();
 211 }
 212
 213
 214 FormBaseBD::FormBaseBD(LyXView * lv, Dialogs * d, string const & t,
 215                        bool allowResize)
 216         : FormBaseDeprecated(lv, d, t, allowResize),
 217           u_(0)
 218 {}
 219
 220
 221 void FormBaseBD::connect()
 222 {
 223         u_ = d_->updateBufferDependent.
 224                 connect(slot(this, &FormBaseBD::updateSlot));
 225         h_ = d_->hideBufferDependent.
 226                 connect(slot(this, &FormBaseBD::hide));
 227         FormBaseDeprecated::connect();
 228 }
 229
 230
 231 void FormBaseBD::disconnect()
 232 {
 233         u_.disconnect();
 234         FormBaseDeprecated::disconnect();
 235 }
 236
 237
 238 namespace {
 239
 240 FormBaseDeprecated * GetForm(FL_OBJECT * ob)
 241 {
 242         lyx::Assert(ob && ob->form && ob->form->u_vdata);
 243         FormBaseDeprecated * ptr =
 244                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 245         return ptr;
 246 }
 247
 248 } // namespace anon
 249
 250
 251 extern "C" {
 252
 253 void C_FormBaseDeprecatedApplyCB(FL_OBJECT * ob, long)
 254 {
 255         GetForm(ob)->ApplyCB();
 256 }
 257
 258
 259 void C_FormBaseDeprecatedOKCB(FL_OBJECT * ob, long)
 260 {
 261         GetForm(ob)->OKCB();
 262 }
 263
 264
 265 void C_FormBaseDeprecatedCancelCB(FL_OBJECT * ob, long)
 266 {
 267         GetForm(ob)->CancelCB();
 268 }
 269
 270
 271 void C_FormBaseDeprecatedInputCB(FL_OBJECT * ob, long d)
 272 {
 273         GetForm(ob)->InputCB(ob, d);
 274 }
 275
 276
 277 void C_FormBaseDeprecatedRestoreCB(FL_OBJECT * ob, long)
 278 {
 279         GetForm(ob)->RestoreCB();
 280 }
 281
 282 static int C_WMHideCB(FL_FORM * form, void *)
 283 {
 284         // Close the dialog cleanly, even if the WM is used to do so.
 285         lyx::Assert(form && form->u_vdata);
 286         FormBaseDeprecated * ptr =
 287                 static_cast<FormBaseDeprecated *>(form->u_vdata);
 288         ptr->WMHideCB();
 289         return FL_CANCEL;
 290 }
 291
 292 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
 293                           FL_Coord, FL_Coord, int key, void *)
 294 {
 295         // Note that the return value is important in the pre-emptive handler.
 296         // Don't return anything other than 0.
 297         lyx::Assert(ob);
 298
 299         // Don't Assert this one, as it can happen quite naturally when things
 300         // are being deleted in the d-tor.
 301         //Assert(ob->form);
 302         if (!ob->form) return 0;
 303
 304         FormBaseDeprecated * ptr =
 305                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 306
 307         if (ptr)
 308                 ptr->PrehandlerCB(ob, event, key);
 309
 310         return 0;
 311 }
 312
 313 } // extern "C"