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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2013 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Authored by: Marco Trevisan (Treviño) <marco@ubuntu.com>
*/
#include "config.h"
#include "SessionButton.h"
#include <Nux/VLayout.h>
#include <glib/gi18n-lib.h>
namespace unity
{
namespace session
{
namespace style
{
std::string const FONT = "Ubuntu Light 12";
RawPixel const BUTTON_SPACE = 9_em;
}
NUX_IMPLEMENT_OBJECT_TYPE(Button);
Button::Button(Action action, NUX_FILE_LINE_DECL)
: nux::View(NUX_FILE_LINE_PARAM)
, scale(1.0)
, highlighted(false)
, action([this] { return action_; })
, label([this] { return label_view_->GetText(); })
, action_(action)
{
SetAcceptKeyNavFocusOnMouseDown(false);
SetAcceptKeyNavFocusOnMouseEnter(true);
std::string texture_prefix = PKGDATADIR"/";
std::string label;
switch (action_)
{
case Action::LOCK:
texture_prefix += "lockscreen";
label = _("Lock");
break;
case Action::LOGOUT:
texture_prefix += "logout";
label = _("Log Out");
break;
case Action::SUSPEND:
texture_prefix += "suspend";
label = _("Suspend");
break;
case Action::HIBERNATE:
texture_prefix += "hibernate";
label = _("Hibernate");
break;
case Action::SHUTDOWN:
texture_prefix += "shutdown";
label = _("Shut Down");
break;
case Action::REBOOT:
texture_prefix += "restart";
label = _("Restart");
break;
}
UpdateTextures(texture_prefix);
auto main_layout = new nux::VLayout();
main_layout->SetContentDistribution(nux::MAJOR_POSITION_CENTER);
main_layout->SetSpaceBetweenChildren(style::BUTTON_SPACE);
SetLayout(main_layout);
scale.changed.connect([this, main_layout, texture_prefix] (double new_scale) {
main_layout->SetSpaceBetweenChildren(style::BUTTON_SPACE.CP(new_scale));
label_view_->SetScale(new_scale);
UpdateTextures(texture_prefix);
image_view_->SetTexture(highlighted ? highlight_tex_ : normal_tex_);
});
image_view_ = new IconTexture(normal_tex_);
image_view_->SetInputEventSensitivity(false);
main_layout->AddView(image_view_, 1, nux::MINOR_POSITION_CENTER);
label_view_ = new StaticCairoText(label);
label_view_->SetFont(style::FONT);
label_view_->SetTextAlignment(StaticCairoText::AlignState::NUX_ALIGN_CENTRE);
label_view_->SetTextColor(nux::color::Transparent);
label_view_->SetInputEventSensitivity(false);
main_layout->AddView(label_view_, 1, nux::MINOR_POSITION_CENTER);
mouse_enter.connect([this] (int, int, unsigned long, unsigned long) { highlighted = true; });
mouse_leave.connect([this] (int, int, unsigned long, unsigned long) { highlighted = false; });
mouse_click.connect([this] (int, int, unsigned long, unsigned long) { activated.emit(); });
begin_key_focus.connect([this] { highlighted = true; });
end_key_focus.connect([this] { highlighted = false; });
key_nav_focus_activate.connect([this] (Area*) { activated.emit(); });
highlighted.changed.connect([this] (bool value) {
image_view_->SetTexture(value ? highlight_tex_ : normal_tex_);
label_view_->SetTextColor(value ? nux::color::White : nux::color::Transparent);
});
}
void Button::UpdateTextures(std::string const& texture_prefix)
{
RawPixel const texture_size = GetDefaultMaxTextureSize(texture_prefix);
normal_tex_.Adopt(nux::CreateTexture2DFromFile((texture_prefix + ".png").c_str(), texture_size.CP(scale), true));
highlight_tex_.Adopt(nux::CreateTexture2DFromFile((texture_prefix + "_highlight.png").c_str(), texture_size.CP(scale), true));
}
RawPixel Button::GetDefaultMaxTextureSize(std::string const& texture_prefix) const
{
nux::Size size;
auto const& texture_name = (texture_prefix + ".png");
gdk_pixbuf_get_file_info(texture_name.c_str(), &size.width, &size.height);
RawPixel max_size = std::max(size.width, size.height);
return max_size;
}
void Button::Draw(nux::GraphicsEngine& ctx, bool force)
{
GetLayout()->ProcessDraw(ctx, force);
}
//
// Introspectable methods
//
std::string Button::GetName() const
{
return "SessionButton";
}
void Button::AddProperties(debug::IntrospectionData& introspection)
{
introspection
.add("highlighted", highlighted())
.add("label", label())
.add("label_color", label_view_->GetTextColor())
.add("label_visible", label_view_->GetTextColor() != nux::color::Transparent);
}
} // namespace session
} // namespace unity
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