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 "xforms_resize.h"
  19 #include "GUIRunTime.h"
  20 #include "Tooltips.h"
  21 #include "frontends/LyXView.h"
  22 #include "lyxrc.h"
  23 #include "support/LAssert.h"
  24
  25 using SigC::slot;
  26
  27 extern "C" {
  28
  29 // Callback function invoked by xforms when the dialog is closed by the
  30 // window manager
  31 static int C_WMHideCB(FL_FORM *, void *);
  32
  33 // Callback function invoked by the xforms pre- and post-handler routines
  34 static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
  35
  36 } // extern "C"
  37
  38
  39 FormBaseDeprecated::FormBaseDeprecated(LyXView * lv, Dialogs * d,
  40                                        string const & t, bool allowResize)
  41         : lv_(lv), d_(d), h_(0), r_(0), title_(t),
  42           minw_(0), minh_(0), allow_resize_(allowResize),
  43           tooltips_(new Tooltips)
  44 {
  45         lyx::Assert(lv && d);
  46 }
  47
  48
  49 FormBaseDeprecated::~FormBaseDeprecated()
  50 {
  51         delete tooltips_;
  52 }
  53
  54
  55 Tooltips & FormBaseDeprecated::tooltips()
  56 {
  57         return *tooltips_;
  58 }
  59
  60
  61 void FormBaseDeprecated::redraw()
  62 {
  63         if (form() && form()->visible)
  64                 fl_redraw_form(form());
  65 }
  66
  67
  68 void FormBaseDeprecated::connect()
  69 {
  70         fl_set_form_minsize(form(), minw_, minh_);
  71         r_ = Dialogs::redrawGUI.connect(slot(this,&FormBaseDeprecated::redraw));
  72 }
  73
  74
  75 void FormBaseDeprecated::disconnect()
  76 {
  77         h_.disconnect();
  78         r_.disconnect();
  79 }
  80
  81
  82 void FormBaseDeprecated::show()
  83 {
  84         if (!form()) {
  85                 build();
  86
  87                 double const scale = scale_to_fit_tabs(form());
  88                 if (scale > 1.001)
  89                         scale_form(form(), scale);
  90
  91                 bc().refresh();
  92
  93                 // work around dumb xforms sizing bug
  94                 minw_ = form()->w;
  95                 minh_ = form()->h;
  96
  97                 fl_set_form_atclose(form(), C_WMHideCB, 0);
  98         }
  99
 100         fl_freeze_form(form());
 101         update();
 102         fl_unfreeze_form(form());
 103
 104         if (form()->visible) {
 105                 fl_raise_form(form());
 106                 /* This XMapWindow() will hopefully ensure that
 107                  * iconified dialogs are de-iconified. Mad props
 108                  * out to those crazy Xlib guys for forgetting a
 109                  * XDeiconifyWindow(). At least WindowMaker, when
 110                  * being notified of the redirected MapRequest will
 111                  * specifically de-iconify. From source, fvwm2 seems
 112                  * to do the same.
 113                  */
 114                 XMapWindow(fl_get_display(), form()->window);
 115         } else {
 116                 connect();
 117
 118                 // calls to fl_set_form_minsize/maxsize apply only to the next
 119                 // fl_show_form(), so this comes first.
 120                 fl_set_form_minsize(form(), minw_, minh_);
 121                 if (!allow_resize_)
 122                         fl_set_form_maxsize(form(), minw_, minh_);
 123
 124                 fl_show_form(form(),
 125                              FL_PLACE_MOUSE | FL_FREE_SIZE,
 126                              (lyxrc.dialogs_iconify_with_main ? FL_TRANSIENT : 0),
 127                              title_.c_str());
 128         }
 129
 130         tooltips().set();
 131 }
 132
 133
 134 void FormBaseDeprecated::hide()
 135 {
 136         // xforms sometimes tries to process a hint-type MotionNotify, and
 137         // use XQueryPointer, without verifying if the window still exists.
 138         // So we try to clear out motion events in the queue before the
 139         // DestroyNotify
 140         XSync(fl_get_display(), false);
 141         GUIRunTime::processEvents();
 142
 143         if (form() && form()->visible) {
 144                 // some dialogs might do things to the form first
 145                 // such as the nested tabfolder problem in Preferences
 146                 disconnect();
 147                 fl_hide_form(form());
 148         }
 149 }
 150
 151
 152 void FormBaseDeprecated::setPrehandler(FL_OBJECT * ob)
 153 {
 154         lyx::Assert(ob);
 155         fl_set_object_prehandler(ob, C_PrehandlerCB);
 156 }
 157
 158
 159 void FormBaseDeprecated::WMHideCB()
 160 {
 161         hide();
 162         bc().hide();
 163 }
 164
 165
 166 void FormBaseDeprecated::ApplyCB()
 167 {
 168         apply();
 169         bc().apply();
 170 }
 171
 172
 173 void FormBaseDeprecated::OKCB()
 174 {
 175         ok();
 176         bc().ok();
 177 }
 178
 179
 180 void FormBaseDeprecated::CancelCB()
 181 {
 182         cancel();
 183         bc().cancel();
 184 }
 185
 186
 187 void FormBaseDeprecated::InputCB(FL_OBJECT * ob, long data)
 188 {
 189         // It is possible to set the choice to 0 when using the
 190         // keyboard shortcuts. This work-around deals with the problem.
 191         if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
 192                 fl_set_choice(ob, 1);
 193         }
 194
 195         bc().valid(input(ob, data));
 196 }
 197
 198
 199 void FormBaseDeprecated::RestoreCB()
 200 {
 201         bc().restore();
 202         restore();
 203 }
 204
 205
 206 FormBaseBI::FormBaseBI(LyXView * lv, Dialogs * d, string const & t,
 207                        bool allowResize)
 208         : FormBaseDeprecated(lv, d, t, allowResize)
 209 {}
 210
 211
 212 void FormBaseBI::connect()
 213 {
 214         h_ = d_->hideAll.connect(slot(this, &FormBaseBI::hide));
 215         FormBaseDeprecated::connect();
 216 }
 217
 218
 219 FormBaseBD::FormBaseBD(LyXView * lv, Dialogs * d, string const & t,
 220                        bool allowResize)
 221         : FormBaseDeprecated(lv, d, t, allowResize),
 222           u_(0)
 223 {}
 224
 225
 226 void FormBaseBD::connect()
 227 {
 228         u_ = d_->updateBufferDependent.
 229                 connect(slot(this, &FormBaseBD::updateSlot));
 230         h_ = d_->hideBufferDependent.
 231                 connect(slot(this, &FormBaseBD::hide));
 232         FormBaseDeprecated::connect();
 233 }
 234
 235
 236 void FormBaseBD::disconnect()
 237 {
 238         u_.disconnect();
 239         FormBaseDeprecated::disconnect();
 240 }
 241
 242
 243 namespace {
 244
 245 FormBaseDeprecated * GetForm(FL_OBJECT * ob)
 246 {
 247         lyx::Assert(ob && ob->form && ob->form->u_vdata);
 248         FormBaseDeprecated * ptr =
 249                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 250         return ptr;
 251 }
 252
 253 } // namespace anon
 254
 255
 256 extern "C" {
 257
 258 void C_FormBaseDeprecatedApplyCB(FL_OBJECT * ob, long)
 259 {
 260         GetForm(ob)->ApplyCB();
 261 }
 262
 263
 264 void C_FormBaseDeprecatedOKCB(FL_OBJECT * ob, long)
 265 {
 266         GetForm(ob)->OKCB();
 267 }
 268
 269
 270 void C_FormBaseDeprecatedCancelCB(FL_OBJECT * ob, long)
 271 {
 272         GetForm(ob)->CancelCB();
 273 }
 274
 275
 276 void C_FormBaseDeprecatedInputCB(FL_OBJECT * ob, long d)
 277 {
 278         GetForm(ob)->InputCB(ob, d);
 279 }
 280
 281
 282 void C_FormBaseDeprecatedRestoreCB(FL_OBJECT * ob, long)
 283 {
 284         GetForm(ob)->RestoreCB();
 285 }
 286
 287 static int C_WMHideCB(FL_FORM * form, void *)
 288 {
 289         // Close the dialog cleanly, even if the WM is used to do so.
 290         lyx::Assert(form && form->u_vdata);
 291         FormBaseDeprecated * ptr =
 292                 static_cast<FormBaseDeprecated *>(form->u_vdata);
 293         ptr->WMHideCB();
 294         return FL_CANCEL;
 295 }
 296
 297 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
 298                           FL_Coord, FL_Coord, int key, void *)
 299 {
 300         // Note that the return value is important in the pre-emptive handler.
 301         // Don't return anything other than 0.
 302         lyx::Assert(ob);
 303
 304         // Don't Assert this one, as it can happen quite naturally when things
 305         // are being deleted in the d-tor.
 306         //Assert(ob->form);
 307         if (!ob->form) return 0;
 308
 309         FormBaseDeprecated * ptr =
 310                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 311
 312         if (ptr)
 313                 ptr->PrehandlerCB(ob, event, key);
 314
 315         return 0;
 316 }
 317
 318 } // extern "C"