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/**
* @file
* Floating dialog implementation.
*/
/* Author:
* Gustav Broberg <broberg@kth.se>
*
* Copyright (C) 2007 Authors
*
* Released under GNU GPL. Read the file 'COPYING' for more information.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gtkmm/dialog.h>
#include <gtkmm/stock.h>
#include <glibmm/main.h>
#include <gtk/gtk.h>
#include "floating-behavior.h"
#include "dialog.h"
#include "inkscape.h"
#include "desktop.h"
#include "ui/dialog-events.h"
#include "ui/interface.h"
#include "preferences.h"
#include "verbs.h"
namespace Inkscape {
namespace UI {
namespace Dialog {
namespace Behavior {
FloatingBehavior::FloatingBehavior(Dialog &dialog) :
Behavior(dialog),
_d (new Gtk::Dialog(_dialog._title))
,_dialog_active(_d->property_is_active())
,_steps(0)
,_trans_focus(Inkscape::Preferences::get()->getDoubleLimited("/dialogs/transparency/on-focus", 0.95, 0.0, 1.0))
,_trans_blur(Inkscape::Preferences::get()->getDoubleLimited("/dialogs/transparency/on-blur", 0.50, 0.0, 1.0))
,_trans_time(Inkscape::Preferences::get()->getIntLimited("/dialogs/transparency/animate-time", 100, 0, 5000))
{
hide();
signal_delete_event().connect(sigc::mem_fun(_dialog, &Inkscape::UI::Dialog::Dialog::_onDeleteEvent));
sp_transientize(GTK_WIDGET(_d->gobj()));
_dialog.retransientize_suppress = false;
_focus_event();
_dialog_active.signal_changed().connect(sigc::mem_fun(this, &FloatingBehavior::_focus_event));
}
/**
* A function called when the window gets focus.
*
* This function gets called on a focus event. It figures out how much
* time is required for a transition, and the number of steps that'll take,
* and sets up the _trans_timer function to do the work. If the transition
* time is set to 0 ms it just calls _trans_timer once with _steps equal to
* zero so that the transition happens instantaneously. This occurs on
* windows as opacity changes cause flicker there.
*/
void FloatingBehavior::_focus_event (void)
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
_steps = 0;
_trans_focus = prefs->getDoubleLimited("/dialogs/transparency/on-focus", 0.95, 0.0, 1.0);
_trans_blur = prefs->getDoubleLimited("/dialogs/transparency/on-blur", 0.50, 0.0, 1.0);
_trans_time = prefs->getIntLimited("/dialogs/transparency/animate-time", 100, 0, 5000);
if (_trans_time != 0) {
float diff = _trans_focus - _trans_blur;
if (diff < 0.0) diff *= -1.0;
while (diff > 0.05) {
_steps++;
diff = diff / 2.0;
}
if (_steps != 0) {
Glib::signal_timeout().connect(sigc::mem_fun(this, &FloatingBehavior::_trans_timer), _trans_time / _steps);
}
}
_trans_timer();
return;
}
/**
* Move the opacity of a window towards our goal.
*
* This is a timer function that is set up by _focus_event to slightly
* move the opacity of the window along in an animated fashion. It moves
* the opacity half way to the goal until it runs out of steps, and then
* it just forces the goal.
*/
bool FloatingBehavior::_trans_timer (void) {
// printf("Go go gadget timer: %d\n", _steps);
if (_steps == 0) {
if (_dialog_active.get_value()) {
_d->set_opacity(_trans_focus);
} else {
_d->set_opacity(_trans_blur);
}
return false;
}
float goal, current;
current = _d->get_opacity();
if (_dialog_active.get_value()) {
goal = _trans_focus;
} else {
goal = _trans_blur;
}
_d->set_opacity(current - ((current - goal) / 2));
_steps--;
return true;
}
FloatingBehavior::~FloatingBehavior()
{
delete _d;
_d = 0;
}
Behavior *
FloatingBehavior::create(Dialog &dialog)
{
return new FloatingBehavior(dialog);
}
inline FloatingBehavior::operator Gtk::Widget &() { return *_d; }
inline GtkWidget *FloatingBehavior::gobj() { return GTK_WIDGET(_d->gobj()); }
inline Gtk::Box* FloatingBehavior::get_vbox() {
return _d->get_content_area();
}
inline void FloatingBehavior::present() { _d->present(); }
inline void FloatingBehavior::hide() { _d->hide(); }
inline void FloatingBehavior::show() { _d->show(); }
inline void FloatingBehavior::show_all_children() { _d->show_all_children(); }
inline void FloatingBehavior::resize(int width, int height) { _d->resize(width, height); }
inline void FloatingBehavior::move(int x, int y) { _d->move(x, y); }
inline void FloatingBehavior::set_position(Gtk::WindowPosition position) { _d->set_position(position); }
inline void FloatingBehavior::set_size_request(int width, int height) { _d->set_size_request(width, height); }
inline void FloatingBehavior::size_request(Gtk::Requisition &requisition) {
Gtk::Requisition requisition_natural;
_d->get_preferred_size(requisition, requisition_natural);
}
inline void FloatingBehavior::get_position(int &x, int &y) { _d->get_position(x, y); }
inline void FloatingBehavior::get_size(int &width, int &height) { _d->get_size(width, height); }
inline void FloatingBehavior::set_title(Glib::ustring title) { _d->set_title(title); }
inline void FloatingBehavior::set_sensitive(bool sensitive) { _d->set_sensitive(sensitive); }
Glib::SignalProxy0<void> FloatingBehavior::signal_show() { return _d->signal_show(); }
Glib::SignalProxy0<void> FloatingBehavior::signal_hide() { return _d->signal_hide(); }
Glib::SignalProxy1<bool, GdkEventAny *> FloatingBehavior::signal_delete_event () { return _d->signal_delete_event(); }
void
FloatingBehavior::onHideF12()
{
_dialog.save_geometry();
hide();
}
void
FloatingBehavior::onShowF12()
{
show();
_dialog.read_geometry();
}
void
FloatingBehavior::onShutdown() {}
void
FloatingBehavior::onDesktopActivated (SPDesktop *desktop)
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
gint transient_policy = prefs->getIntLimited("/options/transientpolicy/value", 1, 0, 2);
#ifdef WIN32 // Win32 special code to enable transient dialogs
transient_policy = 2;
#endif
if (!transient_policy)
return;
GtkWindow *dialog_win = GTK_WINDOW(_d->gobj());
if (_dialog.retransientize_suppress) {
/* if retransientizing of this dialog is still forbidden after
* previous call warning turned off because it was confusingly fired
* when loading many files from command line
*/
// g_warning("Retranzientize aborted! You're switching windows too fast!");
return;
}
if (dialog_win)
{
_dialog.retransientize_suppress = true; // disallow other attempts to retranzientize this dialog
desktop->setWindowTransient (dialog_win);
/*
* This enables "aggressive" transientization,
* i.e. dialogs always emerging on top when you switch documents. Note
* however that this breaks "click to raise" policy of a window
* manager because the switched-to document will be raised at once
* (so that its transients also could raise)
*/
if (transient_policy == 2 && ! _dialog._hiddenF12 && !_dialog._user_hidden) {
// without this, a transient window not always emerges on top
gtk_window_present (dialog_win);
}
}
// we're done, allow next retransientizing not sooner than after 120 msec
g_timeout_add (120, (GSourceFunc) sp_retransientize_again, (gpointer) _d);
}
} // namespace Behavior
} // namespace Dialog
} // namespace UI
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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