3 * Copyright 2000-2001 The LyX Team.
4 * See the file COPYING.
6 * \author Angus Leeming, a.leeming@ic.ac.uk
12 #pragma implementation
18 #include "xforms_resize.h"
20 #include "support/LAssert.h"
24 // Callback function invoked by xforms when the dialog is closed by the
26 static int C_WMHideCB(FL_FORM * form, void *);
28 // Callback function invoked by the xforms pre- and post-handler routines
29 static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
34 FormBase::FormBase(ControlButtons & c, string const & t, bool allowResize)
35 : ViewBC<xformsBC>(c), minw_(0), minh_(0), allow_resize_(allowResize),
36 title_(t), tooltips_(new Tooltips)
46 Tooltips & FormBase::tooltips()
52 void FormBase::redraw()
54 if (form() && form()->visible)
55 fl_redraw_form(form());
65 // use minw_ to flag whether the dialog has ever been shown
66 // (Needed now that build() is/should be called from the controller)
68 double const scale = scale_to_fit_tabs(form());
70 scale_form(form(), scale);
74 // work around dumb xforms sizing bug
78 fl_set_form_atclose(form(), C_WMHideCB, 0);
81 fl_freeze_form(form());
82 update(); // make sure its up-to-date
83 fl_unfreeze_form(form());
85 if (form()->visible) {
86 fl_raise_form(form());
87 /* This XMapWindow() will hopefully ensure that
88 * iconified dialogs are de-iconified. Mad props
89 * out to those crazy Xlib guys for forgetting a
90 * XDeiconifyWindow(). At least WindowMaker, when
91 * being notified of the redirected MapRequest will
92 * specifically de-iconify. From source, fvwm2 seems
95 XMapWindow(fl_get_display(), form()->window);
97 // calls to fl_set_form_minsize/maxsize apply only to the next
98 // fl_show_form(), so this comes first.
99 fl_set_form_minsize(form(), minw_, minh_);
101 fl_set_form_maxsize(form(), minw_, minh_);
104 FL_PLACE_MOUSE | FL_FREE_SIZE,
105 (controller_.IconifyWithMain() ? FL_TRANSIENT : 0),
113 void FormBase::hide()
115 // xforms sometimes tries to process a hint-type MotionNotify, and
116 // use XQueryPointer, without verifying if the window still exists.
117 // So we try to clear out motion events in the queue before the
119 XSync(fl_get_display(), false);
121 if (form() && form()->visible)
122 fl_hide_form(form());
126 void FormBase::setPrehandler(FL_OBJECT * ob)
129 fl_set_object_prehandler(ob, C_PrehandlerCB);
133 void FormBase::InputCB(FL_OBJECT * ob, long data)
135 // It is possible to set the choice to 0 when using the
136 // keyboard shortcuts. This work-around deals with the problem.
137 if (ob && ob->objclass == FL_CHOICE && fl_get_choice(ob) < 1) {
138 fl_set_choice(ob, 1);
141 bc().input(input(ob, data));
145 ButtonPolicy::SMInput FormBase::input(FL_OBJECT *, long)
147 return ButtonPolicy::SMI_VALID;
153 FormBase * GetForm(FL_OBJECT * ob)
155 lyx::Assert(ob && ob->form && ob->form->u_vdata);
156 FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
165 void C_FormBaseApplyCB(FL_OBJECT * ob, long)
167 GetForm(ob)->ApplyButton();
171 void C_FormBaseOKCB(FL_OBJECT * ob, long)
173 GetForm(ob)->OKButton();
177 void C_FormBaseCancelCB(FL_OBJECT * ob, long)
179 FormBase * form = GetForm(ob);
180 form->CancelButton();
184 void C_FormBaseRestoreCB(FL_OBJECT * ob, long)
186 GetForm(ob)->RestoreButton();
190 void C_FormBaseInputCB(FL_OBJECT * ob, long d)
192 GetForm(ob)->InputCB(ob, d);
196 static int C_WMHideCB(FL_FORM * form, void *)
198 // Close the dialog cleanly, even if the WM is used to do so.
199 lyx::Assert(form && form->u_vdata);
200 FormBase * ptr = static_cast<FormBase *>(form->u_vdata);
205 static int C_PrehandlerCB(FL_OBJECT * ob, int event,
206 FL_Coord, FL_Coord, int key, void *)
208 // Note that the return value is important in the pre-emptive handler.
209 // Don't return anything other than 0.
212 // Don't Assert this one, as it can happen quite naturally when things
213 // are being deleted in the d-tor.
215 if (!ob->form) return 0;
217 FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
220 ptr->PrehandlerCB(ob, event, key);