src/frontends/xforms/FormBase.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 2000 The LyX Team.
   8  *
   9  * ======================================================
  10  */
  11
  12 #include <config.h>
  13
  14 #include FORMS_H_LOCATION
  15
  16 #ifdef __GNUG__
  17 #pragma implementation
  18 #endif
  19
  20 #include "Dialogs.h"
  21 #include "FormBase.h"
  22 #include "LyXView.h"
  23 #include "xform_macros.h"
  24 #include "support/LAssert.h"
  25 //#include "debug.h"
  26
  27 // The current scheme muddles debugging.
  28 // Can we please use some other means to create these functions?
  29 // I really don't like to use the preprossessor for this.
  30 // My suggestion: First of all move these functions into their own
  31 // file (that can be included here if wanted, and use m4 to expand
  32 // that file. So create a m4 function to do the expansion, a file
  33 // that contains the calls to to this function and a script to run
  34 // it and create the C++ file with the expanded functions. (Lgb)
  35 // Possible startoff point:
  36 // define([C_RETURNCB],[extern "C" int C_$1$2(FL_FORM * ob, void * d) { return $1::$2(ob, d); }])
  37
  38 C_RETURNCB (FormBase, WMHideCB)
  39 C_GENERICCB(FormBase, ApplyCB)
  40 C_GENERICCB(FormBase, OKCB)
  41 C_GENERICCB(FormBase, CancelCB)
  42 C_GENERICCB(FormBase, InputCB)
  43 C_GENERICCB(FormBase, RestoreCB)
  44
  45
  46 FormBase::FormBase(LyXView * lv, Dialogs * d, string const & t,
  47                    ButtonPolicy * bp, char const * close, char const * cancel)
  48         : lv_(lv), bc_(bp, cancel, close), d_(d), h_(0), title(t), bp_(bp),
  49           minw_(0), minh_(0)
  50 {
  51         Assert(lv && d && bp);
  52         Dialogs::redrawGUI.connect(slot(this, &FormBase::redraw));
  53 }
  54
  55
  56 FormBase::~FormBase()
  57 {
  58         //lyxerr << "bp_[" << bp_ << "]" << endl;
  59         delete bp_;
  60 }
  61
  62
  63 void FormBase::redraw()
  64 {
  65         if (form() && form()->visible)
  66                 fl_redraw_form(form());
  67 }
  68
  69
  70 void FormBase::connect()
  71 {
  72         fl_set_form_minsize(form(), minw_, minh_);
  73 }
  74
  75
  76 void FormBase::show()
  77 {
  78         if (!form()) {
  79                 build();
  80                 fl_set_form_atclose(form(),
  81                                     C_FormBaseWMHideCB, 0);
  82         }
  83
  84         fl_freeze_form(form());
  85         update();  // make sure its up-to-date
  86         fl_unfreeze_form(form());
  87
  88         if (form()->visible) {
  89                 fl_raise_form(form());
  90         } else {
  91                 // calls to fl_set_form_minsize/maxsize apply only to the next
  92                 // fl_show_form(), so connect() comes first.
  93                 connect();
  94                 fl_show_form(form(),
  95                              FL_PLACE_MOUSE | FL_FREE_SIZE,
  96                              FL_TRANSIENT,
  97                              title.c_str());
  98         }
  99 }
 100
 101
 102 void FormBase::hide()
 103 {
 104         if (form() && form()->visible) {
 105                 // some dialogs might do things to the form first
 106                 // such as the nested tabfolder problem in Preferences
 107                 disconnect();
 108                 fl_hide_form(form());
 109         }
 110 }
 111
 112
 113 int FormBase::WMHideCB(FL_FORM * form, void *)
 114 {
 115         Assert(form);
 116         // Ensure that the signals (u and h) are disconnected even if the
 117         // window manager is used to close the dialog.
 118         FormBase * pre = static_cast<FormBase*>(form->u_vdata);
 119         Assert(pre);
 120         pre->hide();
 121         pre->bc_.hide();
 122         return FL_CANCEL;
 123 }
 124
 125
 126 void FormBase::ApplyCB(FL_OBJECT * ob, long)
 127 {
 128         Assert(ob && ob->form);
 129         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 130         Assert(pre);
 131         pre->apply();
 132         pre->bc_.apply();
 133 }
 134
 135
 136 void FormBase::OKCB(FL_OBJECT * ob, long)
 137 {
 138         Assert(ob && ob->form);
 139         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 140         Assert(pre);
 141         pre->ok();
 142         pre->bc_.ok();
 143 }
 144
 145
 146 void FormBase::CancelCB(FL_OBJECT * ob, long)
 147 {
 148         Assert(ob && ob->form);
 149         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 150         Assert(pre);
 151         pre->cancel();
 152         pre->bc_.cancel();
 153 }
 154
 155
 156 void FormBase::InputCB(FL_OBJECT * ob, long data)
 157 {
 158         Assert(ob && ob->form);
 159         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 160         Assert(ob);
 161         pre->bc_.valid(pre->input(ob, data));
 162 }
 163
 164
 165 void FormBase::RestoreCB(FL_OBJECT * ob, long)
 166 {
 167         Assert(ob && ob->form);
 168         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 169         Assert(ob);
 170         pre->restore();
 171         pre->bc_.undoAll();
 172 }
 173
 174
 175 FormBaseBI::FormBaseBI(LyXView * lv, Dialogs * d, string const & t,
 176                        ButtonPolicy * bp,
 177                        char const * close, char const * cancel)
 178         : FormBase(lv, d, t, bp, close, cancel)
 179 {}
 180
 181
 182 void FormBaseBI::connect()
 183 {
 184         h_ = d_->hideAll.connect(slot(this, &FormBaseBI::hide));
 185         FormBase::connect();
 186 }
 187
 188
 189 void FormBaseBI::disconnect()
 190 {
 191         h_.disconnect();
 192 }
 193
 194
 195 FormBaseBD::FormBaseBD(LyXView * lv, Dialogs * d, string const & t,
 196                        ButtonPolicy * bp,
 197                        char const * close, char const * cancel)
 198         : FormBase(lv, d, t, bp, close, cancel),
 199           u_(0)
 200 {}
 201
 202
 203 void FormBaseBD::connect()
 204 {
 205         u_ = d_->updateBufferDependent.
 206                  connect(slot(this, &FormBaseBD::updateSlot));
 207         h_ = d_->hideBufferDependent.
 208                  connect(slot(this, &FormBaseBD::hide));
 209         FormBase::connect();
 210 }
 211
 212
 213 void FormBaseBD::disconnect()
 214 {
 215         u_.disconnect();
 216         h_.disconnect();
 217 }