ardour/libs/gtkmm2ext/tearoff.cc

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/*
Copyright (C) 2003 Paul Barton-Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <cmath>
#include <iostream>
#include "pbd/xml++.h"
#include "gtkmm2ext/tearoff.h"
#include "gtkmm2ext/utils.h"
#include "i18n.h"
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace Gdk;
using namespace Glib;
using namespace std;
TearOff::TearOff (Widget& c, bool allow_resize)
: contents (c)
, own_window (Gtk::WINDOW_TOPLEVEL)
, tearoff_arrow (ARROW_DOWN, SHADOW_OUT)
, close_arrow (ARROW_UP, SHADOW_OUT)
, dragging (false)
, _visible (true)
, _torn (false)
, _can_be_torn_off (true)
{
own_window_width = 0;
own_window_height = 0;
own_window_xpos = 0;
own_window_ypos = 0;
tearoff_event_box.add (tearoff_arrow);
tearoff_event_box.set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
tearoff_event_box.signal_button_release_event().connect (mem_fun (*this, &TearOff::tearoff_click));
tearoff_event_box.set_tooltip_text (_("Click to tear this into its own window"));
close_event_box.add (close_arrow);
close_event_box.set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
close_event_box.signal_button_release_event().connect (mem_fun (*this, &TearOff::close_click));
close_event_box.set_tooltip_text (_("Click to put this back in the main window"));
VBox* box1;
box1 = manage (new VBox);
box1->pack_start (close_event_box, false, false, 2);
window_box.pack_end (*box1, false, false, 2);
own_window.add_events (KEY_PRESS_MASK|KEY_RELEASE_MASK|BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|POINTER_MOTION_MASK|POINTER_MOTION_HINT_MASK);
own_window.set_resizable (allow_resize);
own_window.set_type_hint (WINDOW_TYPE_HINT_TOOLBAR);
own_window.add (window_box);
own_window.signal_button_press_event().connect (mem_fun (*this, &TearOff::window_button_press));
own_window.signal_button_release_event().connect (mem_fun (*this, &TearOff::window_button_release));
own_window.signal_motion_notify_event().connect (mem_fun (*this, &TearOff::window_motion));
own_window.signal_delete_event().connect (mem_fun (*this, &TearOff::window_delete_event));
own_window.signal_realize().connect (sigc::mem_fun (*this, &TearOff::own_window_realized));
own_window.signal_configure_event().connect (sigc::mem_fun (*this, &TearOff::own_window_configured), false);
tearoff_arrow.set_name ("TearOffArrow");
close_arrow.set_name ("TearOffArrow");
VBox* box2;
box2 = manage (new VBox);
box2->pack_start (tearoff_event_box, false, false, 2);
pack_start (contents);
pack_start (*box2, false, false, 2);
}
TearOff::~TearOff ()
{
}
void
TearOff::set_can_be_torn_off (bool yn)
{
if (yn != _can_be_torn_off) {
if (yn) {
tearoff_arrow.set_no_show_all (false);
tearoff_arrow.show ();
} else {
tearoff_arrow.set_no_show_all (true);
tearoff_arrow.hide ();
}
_can_be_torn_off = yn;
}
}
void
TearOff::set_visible (bool yn, bool force)
{
/* don't change visibility if torn off */
if (_torn) {
return;
}
if (_visible != yn || force) {
_visible = yn;
if (yn) {
show_all();
Visible ();
} else {
hide ();
Hidden ();
}
}
}
gint
TearOff::tearoff_click (GdkEventButton* /*ev*/)
{
tear_it_off ();
return true;
}
void
TearOff::tear_it_off ()
{
if (!_can_be_torn_off) {
return;
}
if (torn_off()) {
return;
}
remove (contents);
window_box.pack_start (contents);
own_window.set_name (get_name());
close_event_box.set_name (get_name());
if (own_window_width == 0) {
own_window.set_position (WIN_POS_MOUSE);
}
own_window.show_all ();
own_window.present ();
hide ();
_torn = true;
Detach ();
}
gint
TearOff::close_click (GdkEventButton* /*ev*/)
{
put_it_back ();
return true;
}
void
TearOff::put_it_back ()
{
if (!torn_off()) {
return;
}
window_box.remove (contents);
pack_start (contents);
reorder_child (contents, 0);
own_window.hide ();
show_all ();
_torn = false;
Attach ();
}
gint
TearOff::window_button_press (GdkEventButton* ev)
{
if (dragging || ev->button != 1) {
dragging = false;
own_window.remove_modal_grab();
return true;
}
dragging = true;
drag_x = ev->x_root;
drag_y = ev->y_root;
own_window.add_modal_grab();
return true;
}
gint
TearOff::window_button_release (GdkEventButton* /*ev*/)
{
dragging = false;
own_window.remove_modal_grab();
return true;
}
gint
TearOff::window_delete_event (GdkEventAny* /*ev*/)
{
return close_click(0);
}
gint
TearOff::window_motion (GdkEventMotion* ev)
{
gint x;
gint y;
gint mx, my;
double x_delta;
double y_delta;
RefPtr<Gdk::Window> win (own_window.get_window());
own_window.get_pointer (mx, my);
if (!dragging) {
return true;
}
if (!(ev->state & GDK_BUTTON1_MASK)) {
dragging = false;
own_window.remove_modal_grab();
return true;
}
x_delta = ev->x_root - drag_x;
y_delta = ev->y_root - drag_y;
win->get_root_origin (x, y);
win->move ((gint) floor (x + x_delta), (gint) floor (y + y_delta));
drag_x = ev->x_root;
drag_y = ev->y_root;
return true;
}
bool
TearOff::torn_off() const
{
return _torn;
}
void
TearOff::add_state (XMLNode& node) const
{
node.add_property ("tornoff", (_torn ? "yes" : "no"));
if (own_window_width > 0) {
char buf[32];
snprintf (buf, sizeof (buf), "%d", own_window_width);
node.add_property ("width", buf);
snprintf (buf, sizeof (buf), "%d", own_window_height);
node.add_property ("height", buf);
snprintf (buf, sizeof (buf), "%d", own_window_xpos);
node.add_property ("xpos", buf);
snprintf (buf, sizeof (buf), "%d", own_window_ypos);
node.add_property ("ypos", buf);
}
}
void
TearOff::set_state (const XMLNode& node)
{
Glib::RefPtr<Gdk::Window> win;
const XMLProperty* prop;
if ((prop = node.property (X_("tornoff"))) == 0) {
return;
}
if (prop->value() == "yes") {
tear_it_off ();
} else {
put_it_back ();
}
if ((prop = node.property (X_("width"))) != 0) {
sscanf (prop->value().c_str(), "%d", &own_window_width);
}
if ((prop = node.property (X_("height"))) != 0) {
sscanf (prop->value().c_str(), "%d", &own_window_height);
}
if ((prop = node.property (X_("xpos"))) != 0) {
sscanf (prop->value().c_str(), "%d", &own_window_xpos);
}
if ((prop = node.property (X_("ypos"))) != 0) {
sscanf (prop->value().c_str(), "%d", &own_window_ypos);
}
if (own_window.is_realized()) {
own_window.set_default_size (own_window_width, own_window_height);
own_window.move (own_window_xpos, own_window_ypos);
}
/* otherwise do it once the window is realized, see below */
}
void
TearOff::own_window_realized ()
{
own_window.get_window()->set_decorations (WMDecoration (DECOR_BORDER|DECOR_RESIZEH));
if (own_window_width > 0) {
own_window.set_default_size (own_window_width, own_window_height);
own_window.move (own_window_xpos, own_window_ypos);
}
}
bool
TearOff::own_window_configured (GdkEventConfigure*)
{
Glib::RefPtr<const Gdk::Window> win;
win = own_window.get_window ();
if (win) {
win->get_size (own_window_width, own_window_height);
win->get_position (own_window_xpos, own_window_ypos);
}
return false;
}
void
TearOff::hide_visible ()
{
if (torn_off()) {
own_window.hide ();
}
hide ();
}