/**
* \file FormBase.C
- * Copyright 2000-2001 The LyX Team.
- * See the file COPYING.
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * \author Angus Leeming, a.leeming@ic.ac.uk
+ * \author Angus Leeming
+ *
+ * Full author contact details are available in file CREDITS.
*/
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "FormBase.h"
-#include "ControlButtons.h"
-#include "xformsBC.h"
-#include "xforms_resize.h"
#include "Tooltips.h"
-#include "support/LAssert.h"
-#include FORMS_H_LOCATION
+#include "xforms_helpers.h" // formatted
+#include "xforms_resize.h"
+#include "xformsBC.h"
+
+#include "controllers/ButtonController.h"
+#include "controllers/ControlButtons.h"
+
+#include "support/filetools.h" // LibFileSearch
+#include "support/lstrings.h"
+
+#include "lyx_forms.h"
+
+using lyx::support::bformat;
+using lyx::support::LibFileSearch;
+
+using std::string;
+
extern "C" {
+#if FL_VERSION == 0 || (FL_REVISION == 0 && FL_FIXLEVEL == 0)
+// These should be in forms.h but aren't
+void fl_show_tooltip(const char *, int, int);
+void fl_hide_tooltip();
+#endif
+
// Callback function invoked by xforms when the dialog is closed by the
-// window manager
+// window manager.
static int C_WMHideCB(FL_FORM * form, void *);
-// Callback function invoked by the xforms pre- and post-handler routines
+// Callback function invoked by the xforms pre-handler routine.
static int C_PrehandlerCB(FL_OBJECT *, int, FL_Coord, FL_Coord, int, void *);
} // extern "C"
FormBase::FormBase(string const & t, bool allowResize)
- : ViewBase(), minw_(0), minh_(0), allow_resize_(allowResize),
- title_(t), tooltips_(new Tooltips())
+ : ViewBase(t),
+ warning_posted_(false), message_widget_(0),
+ minw_(0), minh_(0), allow_resize_(allowResize),
+ icon_pixmap_(0), icon_mask_(0),
+ tooltips_(new Tooltips)
{}
FormBase::~FormBase()
{
+ if (icon_pixmap_)
+ XFreePixmap(fl_get_display(), icon_pixmap_);
+
delete tooltips_;
}
+bool FormBase::isVisible() const
+{
+ return form() && form()->visible;
+}
+
+
Tooltips & FormBase::tooltips()
{
return *tooltips_;
}
-xformsBC & FormBase::bc()
+xformsBC & FormBase::bcview()
{
- return static_cast<xformsBC &>(getController().bc());
- // return dynamic_cast<GUIbc &>(controller_ptr_->bc());
+ return static_cast<xformsBC &>(bc().view());
}
-void FormBase::show()
+void FormBase::prepare_to_show()
{
- if (!form()) {
- build();
+ double const scale = get_scale_to_fit(form());
+ if (scale > 1.001)
+ scale_form_horizontally(form(), scale);
+
+ // work around dumb xforms sizing bug
+ minw_ = form()->w;
+ minh_ = form()->h;
+
+ fl_set_form_atclose(form(), C_WMHideCB, 0);
+
+ // set the title for the minimized form
+ if (!getController().IconifyWithMain())
+ fl_winicontitle(form()->window, getTitle().c_str());
+
+ // assign an icon to the form
+ string const iconname = LibFileSearch("images", "lyx", "xpm");
+ if (!iconname.empty()) {
+ unsigned int w, h;
+ icon_pixmap_ = fl_read_pixmapfile(fl_root,
+ iconname.c_str(),
+ &w,
+ &h,
+ &icon_mask_,
+ 0, 0, 0);
+ fl_set_form_icon(form(), icon_pixmap_, icon_mask_);
}
+}
- // use minw_ to flag whether the dialog has ever been shown
- // (Needed now that build() is/should be called from the controller)
- if (minw_ == 0) {
- double const scale = scale_to_fit_tabs(form());
- if (scale > 1.001)
- scale_form(form(), scale);
-
- bc().refresh();
- // work around dumb xforms sizing bug
- minw_ = form()->w;
- minh_ = form()->h;
+void FormBase::show()
+{
+ // build() is/should be called from the controller, so form() should
+ // always exist.
+ BOOST_ASSERT(form());
- fl_set_form_atclose(form(), C_WMHideCB, 0);
+ // we use minw_ to flag whether the dialog has ever been shown.
+ // In turn, prepare_to_show() initialises various bits 'n' pieces
+ // (including minw_).
+ if (minw_ == 0) {
+ prepare_to_show();
}
+ // make sure the form is up to date.
fl_freeze_form(form());
- update(); // make sure its up-to-date
+ update();
fl_unfreeze_form(form());
if (form()->visible) {
if (!allow_resize_)
fl_set_form_maxsize(form(), minw_, minh_);
- int const iconify = getController().IconifyWithMain() ?
- FL_TRANSIENT : 0;
+ string const maximize_title = "LyX: " + getTitle();
+ int const iconify_policy =
+ getController().IconifyWithMain() ? FL_TRANSIENT : 0;
fl_show_form(form(),
FL_PLACE_MOUSE | FL_FREE_SIZE,
- iconify,
- title_.c_str());
+ iconify_policy,
+ maximize_title.c_str());
}
-
- tooltips().set();
}
void FormBase::setPrehandler(FL_OBJECT * ob)
{
- lyx::Assert(ob);
+ BOOST_ASSERT(ob);
fl_set_object_prehandler(ob, C_PrehandlerCB);
}
+void FormBase::setMessageWidget(FL_OBJECT * ob)
+{
+ BOOST_ASSERT(ob && ob->objclass == FL_TEXT);
+ message_widget_ = ob;
+ fl_set_object_lsize(message_widget_, FL_NORMAL_SIZE);
+}
+
+
void FormBase::InputCB(FL_OBJECT * ob, long data)
{
// It is possible to set the choice to 0 when using the
}
+// preemptive handler for feedback messages
+void FormBase::MessageCB(FL_OBJECT * ob, int event)
+{
+ BOOST_ASSERT(ob);
+
+ switch (event) {
+ case FL_ENTER:
+ {
+ string const feedback = getFeedback(ob);
+ if (feedback.empty() && warning_posted_)
+ break;
+
+ warning_posted_ = false;
+ postMessage(getFeedback(ob));
+ break;
+ }
+
+ case FL_LEAVE:
+ if (!warning_posted_)
+ clearMessage();
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+void FormBase::PrehandlerCB(FL_OBJECT * ob, int event, int key)
+{
+ BOOST_ASSERT(ob);
+
+ if (ob->objclass == FL_INPUT && event == FL_PUSH && key == 2) {
+ // Trigger an input event when pasting in an xforms input object
+ // using the middle mouse button.
+ InputCB(ob, 0);
+ return;
+ }
+
+ if (message_widget_) {
+ switch (event) {
+ case FL_ENTER:
+ case FL_LEAVE:
+ // Post feedback as the mouse enters the object,
+ // remove it as the mouse leaves.
+ MessageCB(ob, event);
+ break;
+ }
+ }
+
+#if FL_VERSION == 0 || (FL_REVISION == 0 && FL_FIXLEVEL == 0)
+ // Tooltips are not displayed on browser widgets due to an xforms' bug.
+ // This is a work-around:
+ if (ob->objclass == FL_BROWSER) {
+ switch (event) {
+ case FL_ENTER:
+ if (ob->tooltip && *(ob->tooltip)) {
+ int const x = ob->form->x + ob->x;
+ int const y = ob->form->y + ob->y + ob->h + 1;
+ fl_show_tooltip(ob->tooltip, x, y);
+ }
+ break;
+ case FL_LEAVE:
+ case FL_PUSH:
+ case FL_KEYPRESS:
+ fl_hide_tooltip();
+ break;
+ }
+ }
+#endif
+}
+
+
+void FormBase::postWarning(string const & warning)
+{
+ warning_posted_ = true;
+ postMessage(warning);
+}
+
+
+void FormBase::clearMessage()
+{
+ BOOST_ASSERT(message_widget_);
+
+ warning_posted_ = false;
+
+ string const existing = message_widget_->label
+ ? message_widget_->label : string();
+ if (existing.empty())
+ return;
+
+ // This trick is needed to get xforms to clear the label...
+ fl_set_object_label(message_widget_, "");
+ fl_hide_object(message_widget_);
+}
+
+
+void FormBase::postMessage(string const & message)
+{
+ BOOST_ASSERT(message_widget_);
+
+ int const width = message_widget_->w - 10;
+ string const tmp = warning_posted_ ?
+ bformat(_("WARNING! %1$s"), message) :
+ message;
+
+ string const str = formatted(tmp, width, FL_NORMAL_SIZE);
+
+ fl_set_object_label(message_widget_, str.c_str());
+ FL_COLOR const label_color = warning_posted_ ? FL_RED : FL_LCOL;
+ fl_set_object_lcol(message_widget_, label_color);
+
+ if (!message_widget_->visible)
+ fl_show_object(message_widget_);
+}
+
+
namespace {
FormBase * GetForm(FL_OBJECT * ob)
{
- lyx::Assert(ob && ob->form && ob->form->u_vdata);
+ BOOST_ASSERT(ob && ob->form && ob->form->u_vdata);
FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
return ptr;
}
static int C_WMHideCB(FL_FORM * form, void *)
{
// Close the dialog cleanly, even if the WM is used to do so.
- lyx::Assert(form && form->u_vdata);
+ BOOST_ASSERT(form && form->u_vdata);
FormBase * ptr = static_cast<FormBase *>(form->u_vdata);
ptr->getController().CancelButton();
return FL_CANCEL;
{
// Note that the return value is important in the pre-emptive handler.
// Don't return anything other than 0.
- lyx::Assert(ob);
+ BOOST_ASSERT(ob);
// Don't Assert this one, as it can happen quite naturally when things
// are being deleted in the d-tor.
- //Assert(ob->form);
+ //BOOST_ASSERT(ob->form);
if (!ob->form) return 0;
FormBase * ptr = static_cast<FormBase *>(ob->form->u_vdata);
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