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 "xform_macros.h"
  23
  24 C_RETURNCB (FormBase, WMHideCB)
  25 C_GENERICCB(FormBase, ApplyCB)
  26 C_GENERICCB(FormBase, OKCB)
  27 C_GENERICCB(FormBase, CancelCB)
  28 C_GENERICCB(FormBase, InputCB)
  29 C_GENERICCB(FormBase, RestoreCB)
  30
  31
  32 FormBase::FormBase(LyXView * lv, Dialogs * d, BufferDependency bd, string const & t,
  33                    ButtonPolicy * bp, char const * close, char const * cancel)
  34         : dialogIsOpen(false), lv_(lv), bc_(bp, cancel, close),
  35           u_(0), h_(0), title(t), bp_(bp)
  36 {
  37         switch( bd ) {
  38         case BUFFER_DEPENDENT:
  39                 hSignal_ = &d->hideBufferDependent;
  40                 uSignal_ = &d->updateBufferDependent;
  41                 break;
  42         case BUFFER_INDEPENDENT:
  43                 hSignal_ = &d->hideAll;
  44                 uSignal_ = 0;
  45                 break;
  46         }
  47 }
  48
  49
  50 FormBase::~FormBase()
  51 {
  52         delete bp_;
  53 }
  54
  55
  56 void FormBase::show()
  57 {
  58         if (!form()) {
  59                 build();
  60                 fl_set_form_atclose(form(),
  61                                     C_FormBaseWMHideCB, 0);
  62         }
  63
  64         fl_freeze_form( form() );
  65         update();  // make sure its up-to-date
  66         fl_unfreeze_form( form() );
  67
  68         dialogIsOpen = true;
  69         if (form()->visible) {
  70                 fl_raise_form(form());
  71         } else {
  72                 fl_show_form(form(),
  73                              FL_PLACE_MOUSE | FL_FREE_SIZE,
  74                              FL_TRANSIENT,
  75                              title.c_str());
  76                 connect();
  77         }
  78 }
  79
  80
  81 void FormBase::hide()
  82 {
  83         if (form() && form()->visible) {
  84                 fl_hide_form(form());
  85                 disconnect();
  86         }
  87
  88         // free up the dialog for another inset
  89         dialogIsOpen = false;
  90         clearStore();
  91 }
  92
  93
  94 void FormBase::connect()
  95 {
  96         if ( uSignal_ ) {
  97                 u_ = uSignal_->connect(slot(this, &FormBase::update));
  98         }
  99         h_ = hSignal_->connect(slot(this, &FormBase::hide));
 100 }
 101
 102
 103 void FormBase::disconnect()
 104 {
 105         u_.disconnect();
 106         h_.disconnect();
 107 }
 108
 109
 110 int FormBase::WMHideCB(FL_FORM * form, void *)
 111 {
 112         // Ensure that the signals (u and h) are disconnected even if the
 113         // window manager is used to close the dialog.
 114         FormBase * pre = static_cast<FormBase*>(form->u_vdata);
 115         pre->hide();
 116         pre->bc_.hide();
 117         return FL_CANCEL;
 118 }
 119
 120
 121 void FormBase::ApplyCB(FL_OBJECT * ob, long)
 122 {
 123         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 124         pre->apply();
 125         pre->bc_.apply();
 126 }
 127
 128
 129 void FormBase::OKCB(FL_OBJECT * ob, long)
 130 {
 131         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 132         pre->ok();
 133         pre->bc_.ok();
 134 }
 135
 136
 137 void FormBase::CancelCB(FL_OBJECT * ob, long)
 138 {
 139         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 140         pre->cancel();
 141         pre->bc_.cancel();
 142 }
 143
 144
 145 void FormBase::InputCB(FL_OBJECT * ob, long data )
 146 {
 147         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 148         pre->bc_.valid( pre->input( data ) );
 149 }
 150
 151
 152 void FormBase::RestoreCB(FL_OBJECT * ob, long)
 153 {
 154         FormBase * pre = static_cast<FormBase*>(ob->form->u_vdata);
 155         pre->restore();
 156         pre->bc_.undoAll();
 157 }