src/frontends/xforms/FormBaseDeprecated.C

   1 /**
   2  * \file FormBaseDeprecated.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Angus Leeming
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "Dialogs.h"
  18 #include "FormBaseDeprecated.h"
  19 #include "xformsBC.h"
  20 #include "xforms_resize.h"
  21 #include "Tooltips.h"
  22 #include FORMS_H_LOCATION
  23
  24 #include "lyxrc.h"
  25
  26 #include "frontends/LyXView.h"
  27
  28 #include "support/LAssert.h"
  29 #include "support/filetools.h" //  LibFileSearch
  30
  31 #include <boost/bind.hpp>
  32
  33 extern "C" {
  34
  35 // Callback function invoked by xforms when the dialog is closed by the
  36 // window manager
  37 static int C_WMHideCB(FL_FORM *, void *);
  38
  39 // Callback function invoked by the xforms pre- and post-handler routines
  40 static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
  41
  42 } // extern "C"
  43
  44
  45 FormBaseDeprecated::FormBaseDeprecated(LyXView & lv, Dialogs & d,
  46                                        string const & t, bool allowResize)
  47         : lv_(lv), d_(d), title_(t), icon_pixmap_(0), icon_mask_(0),
  48           minw_(0), minh_(0), allow_resize_(allowResize),
  49           tooltips_(new Tooltips())
  50 {}
  51
  52
  53 FormBaseDeprecated::~FormBaseDeprecated()
  54 {
  55         if (icon_pixmap_)
  56                 XFreePixmap(fl_get_display(), icon_pixmap_);
  57
  58         delete tooltips_;
  59 }
  60
  61
  62 Tooltips & FormBaseDeprecated::tooltips()
  63 {
  64         return *tooltips_;
  65 }
  66
  67
  68 void FormBaseDeprecated::redraw()
  69 {
  70         if (form() && form()->visible)
  71                 fl_redraw_form(form());
  72 }
  73
  74
  75 void FormBaseDeprecated::connect()
  76 {
  77         fl_set_form_minsize(form(), minw_, minh_);
  78         r_ = d_.redrawGUI().connect(boost::bind(&FormBaseDeprecated::redraw, this));
  79 }
  80
  81
  82 void FormBaseDeprecated::disconnect()
  83 {
  84         h_.disconnect();
  85         r_.disconnect();
  86 }
  87
  88
  89 void FormBaseDeprecated::prepare_to_show()
  90 {
  91         build();
  92
  93         double const scale = scale_to_fit_tabs(form());
  94         if (scale > 1.001)
  95                 scale_form(form(), scale);
  96
  97         bc().refresh();
  98
  99         // work around dumb xforms sizing bug
 100         minw_ = form()->w;
 101         minh_ = form()->h;
 102
 103         fl_set_form_atclose(form(), C_WMHideCB, 0);
 104
 105         // set the title for the minimized form
 106         if (!lyxrc.dialogs_iconify_with_main)
 107                 fl_winicontitle(form()->window, title_.c_str());
 108
 109         //  assign an icon to the form
 110         string const iconname = LibFileSearch("images", "lyx", "xpm");
 111         if (!iconname.empty()) {
 112                 unsigned int w, h;
 113                 icon_pixmap_ = fl_read_pixmapfile(fl_root,
 114                                                   iconname.c_str(),
 115                                                   &w,
 116                                                   &h,
 117                                                   &icon_mask_,
 118                                                   0, 0, 0);
 119                 fl_set_form_icon(form(), icon_pixmap_, icon_mask_);
 120         }
 121 }
 122
 123
 124 void FormBaseDeprecated::show()
 125 {
 126         if (!form()) {
 127                 prepare_to_show();
 128         }
 129
 130         // make sure the form is up to date.
 131         fl_freeze_form(form());
 132         update();
 133         fl_unfreeze_form(form());
 134
 135         if (form()->visible) {
 136                 fl_raise_form(form());
 137                 /* This XMapWindow() will hopefully ensure that
 138                  * iconified dialogs are de-iconified. Mad props
 139                  * out to those crazy Xlib guys for forgetting a
 140                  * XDeiconifyWindow(). At least WindowMaker, when
 141                  * being notified of the redirected MapRequest will
 142                  * specifically de-iconify. From source, fvwm2 seems
 143                  * to do the same.
 144                  */
 145                 XMapWindow(fl_get_display(), form()->window);
 146         } else {
 147                 connect();
 148
 149                 // calls to fl_set_form_minsize/maxsize apply only to the next
 150                 // fl_show_form(), so this comes first.
 151                 fl_set_form_minsize(form(), minw_, minh_);
 152                 if (!allow_resize_)
 153                         fl_set_form_maxsize(form(), minw_, minh_);
 154
 155                 string const maximize_title = "LyX: " + title_;
 156                 int const iconify_policy =
 157                         lyxrc.dialogs_iconify_with_main ? FL_TRANSIENT : 0;
 158
 159                 fl_show_form(form(),
 160                              FL_PLACE_MOUSE | FL_FREE_SIZE,
 161                              iconify_policy,
 162                              maximize_title.c_str());
 163         }
 164
 165         // For some strange reason known only to xforms, the tooltips can only
 166         // be set on a form that is already visible...
 167         tooltips().set();
 168 }
 169
 170
 171 void FormBaseDeprecated::hide()
 172 {
 173         // xforms sometimes tries to process a hint-type MotionNotify, and
 174         // use XQueryPointer, without verifying if the window still exists.
 175         // So we try to clear out motion events in the queue before the
 176         // DestroyNotify
 177         XSync(fl_get_display(), false);
 178
 179         if (form() && form()->visible) {
 180                 // some dialogs might do things to the form first
 181                 // such as the nested tabfolder problem in Preferences
 182                 disconnect();
 183                 fl_hide_form(form());
 184         }
 185 }
 186
 187
 188 void FormBaseDeprecated::setPrehandler(FL_OBJECT * ob)
 189 {
 190         lyx::Assert(ob);
 191         fl_set_object_prehandler(ob, C_PrehandlerCB);
 192 }
 193
 194
 195 void FormBaseDeprecated::WMHideCB()
 196 {
 197         hide();
 198         bc().hide();
 199 }
 200
 201
 202 void FormBaseDeprecated::ApplyCB()
 203 {
 204         apply();
 205         bc().apply();
 206 }
 207
 208
 209 void FormBaseDeprecated::OKCB()
 210 {
 211         ok();
 212         bc().ok();
 213 }
 214
 215
 216 void FormBaseDeprecated::CancelCB()
 217 {
 218         cancel();
 219         bc().cancel();
 220 }
 221
 222
 223 void FormBaseDeprecated::InputCB(FL_OBJECT * ob, long data)
 224 {
 225         // It is possible to set the choice to 0 when using the
 226         // keyboard shortcuts. This work-around deals with the problem.
 227         if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
 228                 fl_set_choice(ob, 1);
 229         }
 230
 231         bc().valid(input(ob, data));
 232 }
 233
 234
 235 void FormBaseDeprecated::RestoreCB()
 236 {
 237         bc().restore();
 238         restore();
 239 }
 240
 241
 242 FormBaseBI::FormBaseBI(LyXView & lv, Dialogs & d, string const & t,
 243                        bool allowResize)
 244         : FormBaseDeprecated(lv, d, t, allowResize)
 245 {}
 246
 247
 248 void FormBaseBI::connect()
 249 {
 250         h_ = d_.hideAll.connect(boost::bind(&FormBaseBI::hide, this));
 251         FormBaseDeprecated::connect();
 252 }
 253
 254
 255 FormBaseBD::FormBaseBD(LyXView & lv, Dialogs & d, string const & t,
 256                        bool allowResize)
 257         : FormBaseDeprecated(lv, d, t, allowResize)
 258 {}
 259
 260
 261 void FormBaseBD::connect()
 262 {
 263         u_ = d_.updateBufferDependent.
 264                 connect(boost::bind(&FormBaseBD::updateSlot, this, _1));
 265         h_ = d_.hideBufferDependent.
 266                 connect(boost::bind(&FormBaseBD::hide, this));
 267         FormBaseDeprecated::connect();
 268 }
 269
 270
 271 void FormBaseBD::disconnect()
 272 {
 273         u_.disconnect();
 274         FormBaseDeprecated::disconnect();
 275 }
 276
 277
 278 namespace {
 279
 280 FormBaseDeprecated * GetForm(FL_OBJECT * ob)
 281 {
 282         lyx::Assert(ob && ob->form && ob->form->u_vdata);
 283         FormBaseDeprecated * ptr =
 284                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 285         return ptr;
 286 }
 287
 288 } // namespace anon
 289
 290
 291 extern "C" {
 292
 293 void C_FormBaseDeprecatedApplyCB(FL_OBJECT * ob, long)
 294 {
 295         GetForm(ob)->ApplyCB();
 296 }
 297
 298
 299 void C_FormBaseDeprecatedOKCB(FL_OBJECT * ob, long)
 300 {
 301         GetForm(ob)->OKCB();
 302 }
 303
 304
 305 void C_FormBaseDeprecatedCancelCB(FL_OBJECT * ob, long)
 306 {
 307         GetForm(ob)->CancelCB();
 308 }
 309
 310
 311 void C_FormBaseDeprecatedInputCB(FL_OBJECT * ob, long d)
 312 {
 313         GetForm(ob)->InputCB(ob, d);
 314 }
 315
 316
 317 void C_FormBaseDeprecatedRestoreCB(FL_OBJECT * ob, long)
 318 {
 319         GetForm(ob)->RestoreCB();
 320 }
 321
 322 static int C_WMHideCB(FL_FORM * form, void *)
 323 {
 324         // Close the dialog cleanly, even if the WM is used to do so.
 325         lyx::Assert(form && form->u_vdata);
 326         FormBaseDeprecated * ptr =
 327                 static_cast<FormBaseDeprecated *>(form->u_vdata);
 328         ptr->WMHideCB();
 329         return FL_CANCEL;
 330 }
 331
 332 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
 333                           FL_Coord, FL_Coord, int key, void *)
 334 {
 335         // Note that the return value is important in the pre-emptive handler.
 336         // Don't return anything other than 0.
 337         lyx::Assert(ob);
 338
 339         // Don't Assert this one, as it can happen quite naturally when things
 340         // are being deleted in the d-tor.
 341         //Assert(ob->form);
 342         if (!ob->form) return 0;
 343
 344         FormBaseDeprecated * ptr =
 345                 static_cast<FormBaseDeprecated *>(ob->form->u_vdata);
 346
 347         if (ptr)
 348                 ptr->PrehandlerCB(ob, event, key);
 349
 350         return 0;
 351 }
 352
 353 } // extern "C"