src/frontends/xforms/FormBase.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 2000-2001 The LyX Team.
   7  *
   8  * ======================================================
   9  *
  10  * \author Angus Leeming <a.leeming@ic.ac.uk>
  11  */
  12
  13 #include <config.h>
  14
  15 #ifdef __GNUG__
  16 #pragma implementation
  17 #endif
  18
  19 #include "Dialogs.h"
  20 #include "FormBase.h"
  21 #include "xformsBC.h"
  22 #include "support/LAssert.h"
  23
  24 extern "C" int C_FormBaseWMHideCB(FL_FORM * form, void *);
  25
  26
  27 FormBase::FormBase(ControlButtons & c, string const & t, bool allowResize)
  28         : ViewBC<xformsBC>(c), minw_(0), minh_(0), allow_resize_(allowResize),
  29           title_(t)
  30 {}
  31
  32
  33 void FormBase::redraw()
  34 {
  35         if (form() && form()->visible)
  36                 fl_redraw_form(form());
  37 }
  38
  39
  40 void FormBase::show()
  41 {
  42         if (!form()) {
  43                 build();
  44         }
  45
  46         // use minw_ to flag whether the dialog has ever been shown
  47         // (Needed now that build() is/should be called from the controller)
  48         if (minw_ == 0) {
  49                 bc().refresh();
  50
  51                 // work around dumb xforms sizing bug
  52                 minw_ = form()->w;
  53                 minh_ = form()->h;
  54
  55                 fl_set_form_atclose(form(), C_FormBaseWMHideCB, 0);
  56         }
  57
  58         fl_freeze_form(form());
  59         update();  // make sure its up-to-date
  60         fl_unfreeze_form(form());
  61
  62         if (form()->visible) {
  63                 fl_raise_form(form());
  64                 /* This XMapWindow() will hopefully ensure that
  65                  * iconified dialogs are de-iconified. Mad props
  66                  * out to those crazy Xlib guys for forgetting a
  67                  * XDeiconifyWindow(). At least WindowMaker, when
  68                  * being notified of the redirected MapRequest will
  69                  * specifically de-iconify. From source, fvwm2 seems
  70                  * to do the same.
  71                  */
  72                 XMapWindow(fl_get_display(), form()->window);
  73         } else {
  74                 // calls to fl_set_form_minsize/maxsize apply only to the next
  75                 // fl_show_form(), so this comes first.
  76                 fl_set_form_minsize(form(), minw_, minh_);
  77                 if (!allow_resize_)
  78                         fl_set_form_maxsize(form(), minw_, minh_);
  79
  80                 fl_show_form(form(),
  81                              FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
  82                              title_.c_str());
  83         }
  84 }
  85
  86
  87 void FormBase::hide()
  88 {
  89         if (form() && form()->visible)
  90                 fl_hide_form(form());
  91 }
  92
  93
  94 void FormBase::InputCB(FL_OBJECT * ob, long data)
  95 {
  96         bc().input(input(ob, data));
  97 }
  98
  99
 100 ButtonPolicy::SMInput FormBase::input(FL_OBJECT *, long)
 101 {
 102         return ButtonPolicy::SMI_VALID;
 103 }
 104
 105
 106 namespace {
 107
 108 FormBase * GetForm(FL_OBJECT * ob)
 109 {
 110         lyx::Assert(ob && ob->form && ob->form->u_vdata);
 111         FormBase * pre = static_cast<FormBase *>(ob->form->u_vdata);
 112         return pre;
 113 }
 114
 115 } // namespace anon
 116
 117
 118 extern "C"
 119 int C_FormBaseWMHideCB(FL_FORM * form, void *)
 120 {
 121         // Close the dialog cleanly, even if the WM is used to do so.
 122         lyx::Assert(form && form->u_vdata);
 123         FormBase * pre = static_cast<FormBase *>(form->u_vdata);
 124         pre->CancelButton();
 125         return FL_CANCEL;
 126 }
 127
 128
 129 extern "C" void C_FormBaseApplyCB(FL_OBJECT * ob, long)
 130 {
 131         GetForm(ob)->ApplyButton();
 132 }
 133
 134
 135 extern "C" void C_FormBaseOKCB(FL_OBJECT * ob, long)
 136 {
 137         GetForm(ob)->OKButton();
 138 }
 139
 140
 141 extern "C" void C_FormBaseCancelCB(FL_OBJECT * ob, long)
 142 {
 143         FormBase * form = GetForm(ob);
 144         form->CancelButton();
 145 }
 146
 147
 148 extern "C" void C_FormBaseRestoreCB(FL_OBJECT * ob, long)
 149 {
 150         GetForm(ob)->RestoreButton();
 151 }
 152
 153
 154 extern "C" void C_FormBaseInputCB(FL_OBJECT * ob, long d)
 155 {
 156         GetForm(ob)->InputCB(ob, d);
 157 }