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
 126
 127 void FormBaseDeprecated::hide()
 128 {
 129         // xforms sometimes tries to process a hint-type MotionNotify, and
 130         // use XQueryPointer, without verifying if the window still exists.
 131         // So we try to clear out motion events in the queue before the
 132         // DestroyNotify
 133         XSync(fl_get_display(), false);
 134         GUIRunTime::processEvents();
 135
 136         if (form() && form()->visible) {
 137                 // some dialogs might do things to the form first
 138                 // such as the nested tabfolder problem in Preferences
 139                 disconnect();
 140                 fl_hide_form(form());
 141         }
 142 }
 143
 144
 145 void FormBaseDeprecated::setPrehandler(FL_OBJECT * ob)
 146 {
 147         lyx::Assert(ob);
 148         fl_set_object_prehandler(ob, C_PrehandlerCB);
 149 }
 150
 151
 152 void FormBaseDeprecated::WMHideCB()
 153 {
 154         hide();
 155         bc().hide();
 156 }
 157
 158
 159 void FormBaseDeprecated::ApplyCB()
 160 {
 161         apply();
 162         bc().apply();
 163 }
 164
 165
 166 void FormBaseDeprecated::OKCB()
 167 {
 168         ok();
 169         bc().ok();
 170 }
 171
 172
 173 void FormBaseDeprecated::CancelCB()
 174 {
 175         cancel();
 176         bc().cancel();
 177 }
 178
 179
 180 void FormBaseDeprecated::InputCB(FL_OBJECT * ob, long data)
 181 {
 182         // It is possible to set the choice to 0 when using the
 183         // keyboard shortcuts. This work-around deals with the problem.
 184         if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
 185                 fl_set_choice(ob, 1);
 186         }
 187
 188         bc().valid(input(ob, data));
 189 }
 190
 191
 192 void FormBaseDeprecated::RestoreCB()
 193 {
 194         bc().restore();
 195         restore();
 196 }
 197
 198
 199 FormBaseBI::FormBaseBI(LyXView * lv, Dialogs * d, string const & t,
 200                        bool allowResize)
 201         : FormBaseDeprecated(lv, d, t, allowResize)
 202 {}
 203
 204
 205 void FormBaseBI::connect()
 206 {
 207         h_ = d_->hideAll.connect(slot(this, &FormBaseBI::hide));
 208         FormBaseDeprecated::connect();
 209 }
 210
 211
 212 FormBaseBD::FormBaseBD(LyXView * lv, Dialogs * d, string const & t,
 213                        bool allowResize)
 214         : FormBaseDeprecated(lv, d, t, allowResize),
 215           u_(0)
 216 {}
 217
 218
 219 void FormBaseBD::connect()
 220 {
 221         u_ = d_->updateBufferDependent.
 222                  connect(slot(this, &FormBaseBD::updateSlot));
 223         h_ = d_->hideBufferDependent.
 224                  connect(slot(this, &FormBaseBD::hide));
 225         FormBaseDeprecated::connect();
 226 }
 227
 228
 229 void FormBaseBD::disconnect()
 230 {
 231         u_.disconnect();
 232         FormBaseDeprecated::disconnect();
 233 }
 234
 235
 236 namespace {
 237
 238 FormBaseDeprecated * GetForm(FL_OBJECT * ob)
 239 {
 240         lyx::Assert(ob && ob->form && ob->form->u_vdata);
 241         FormBaseDeprecated * ptr =
 242                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 243         return ptr;
 244 }
 245
 246 } // namespace anon
 247
 248
 249 extern "C" {
 250
 251 void C_FormBaseDeprecatedApplyCB(FL_OBJECT * ob, long)
 252 {
 253         GetForm(ob)->ApplyCB();
 254 }
 255
 256
 257 void C_FormBaseDeprecatedOKCB(FL_OBJECT * ob, long)
 258 {
 259         GetForm(ob)->OKCB();
 260 }
 261
 262
 263 void C_FormBaseDeprecatedCancelCB(FL_OBJECT * ob, long)
 264 {
 265         GetForm(ob)->CancelCB();
 266 }
 267
 268
 269 void C_FormBaseDeprecatedInputCB(FL_OBJECT * ob, long d)
 270 {
 271         GetForm(ob)->InputCB(ob, d);
 272 }
 273
 274
 275 void C_FormBaseDeprecatedRestoreCB(FL_OBJECT * ob, long)
 276 {
 277         GetForm(ob)->RestoreCB();
 278 }
 279
 280 static int C_WMHideCB(FL_FORM * form, void *)
 281 {
 282         // Close the dialog cleanly, even if the WM is used to do so.
 283         lyx::Assert(form && form->u_vdata);
 284         FormBaseDeprecated * ptr =
 285                 static_cast<FormBaseDeprecated *>(form->u_vdata);
 286         ptr->WMHideCB();
 287         return FL_CANCEL;
 288 }
 289
 290 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
 291                           FL_Coord, FL_Coord, int key, void *)
 292 {
 293         // Note that the return value is important in the pre-emptive handler.
 294         // Don't return anything other than 0.
 295         lyx::Assert(ob);
 296
 297         // Don't Assert this one, as it can happen quite naturally when things
 298         // are being deleted in the d-tor.
 299         //Assert(ob->form);
 300         if (!ob->form) return 0;
 301
 302         FormBaseDeprecated * ptr =
 303                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 304
 305         if (ptr)
 306                 ptr->PrehandlerCB(ob, event, key);
 307
 308         return 0;
 309 }
 310
 311 } // extern "C"