Ichthyostega
f02481bb90
the rules are: - our own headers go before any library headers - all headers need to be spelled relative to include root - ensure that gtk is always included via gui/gtk-base.hpp
114 lines
3 KiB
C++
114 lines
3 KiB
C++
/*
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button-bar.cpp - Implementation of the button bar widget
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Copyright (C) Lumiera.org
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2009, Joel Holdsworth <joel@airwebreathe.org.uk>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "gui/widgets/button-bar.hpp"
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#include "include/logging.h"
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#include <algorithm>
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using namespace Gtk;
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using namespace Glib;
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using namespace sigc;
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using namespace std;
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namespace gui {
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namespace widgets {
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ButtonBar::ButtonBar()
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{
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set_flags(Gtk::NO_WINDOW);
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}
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void
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ButtonBar::append(Widget &widget)
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{
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pack_start(widget, Gtk::PACK_SHRINK);
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}
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void
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ButtonBar::on_size_request(Gtk::Requisition* requisition)
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{
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REQUIRE(requisition);
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requisition->width = 0;
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requisition->height = 0;
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Box::BoxList &list = children();
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Box::BoxList::const_iterator i;
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for(i = list.begin(); i != list.end(); i++)
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{
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Widget *widget = (*i).get_widget();
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REQUIRE(widget);
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Requisition child_requisition = widget->size_request();
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requisition->width += child_requisition.width;
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requisition->height = max(requisition->height,
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child_requisition.height);
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}
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ENSURE(requisition->width >= 0);
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ENSURE(requisition->height >= 0);
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}
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void
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ButtonBar::on_size_allocate(Gtk::Allocation& allocation)
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{
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//Use the offered allocation for this container:
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set_allocation(allocation);
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int offset = 0;
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Box::BoxList &list = children();
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Box::BoxList::const_iterator i;
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for(i = list.begin(); i != list.end(); i++)
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{
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Widget *widget = (*i).get_widget();
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REQUIRE(widget);
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const Requisition child_requisition = widget->size_request();
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Gtk::Allocation child_allocation(
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allocation.get_x() + offset,
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allocation.get_y(),
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child_requisition.width,
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allocation.get_height());
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offset += child_requisition.width;
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if(get_direction() == TEXT_DIR_RTL)
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{
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child_allocation.set_x(
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2*allocation.get_x() + allocation.get_width() -
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child_allocation.get_x() - child_allocation.get_width());
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}
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if(offset > allocation.get_width())
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widget->set_child_visible(false);
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else
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{
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widget->size_allocate(child_allocation);
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widget->set_child_visible(true);
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}
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}
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}
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} // widgets
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} // gui
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