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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 <marco.trevisan@canonical.com>
*/
#include <NuxCore/Logger.h>
#include <X11/cursorfont.h>
#include <sigc++/adaptors/hide.h>
#include "glow_texture.h"
#include "DecorationsDataPool.h"
#include "UnitySettings.h"
#include "UScreen.h"
namespace unity
{
namespace decoration
{
namespace
{
DECLARE_LOGGER(logger, "unity.decoration.datapool");
static DataPool::Ptr instance_;
const std::string PLUGIN_NAME = "unityshell";
const int BUTTONS_SIZE = 16;
const int BUTTONS_PADDING = 1;
const cu::SimpleTexture::Ptr EMPTY_BUTTON;
unsigned EdgeTypeToCursorShape(Edge::Type type)
{
switch (type)
{
case Edge::Type::TOP:
return XC_top_side;
case Edge::Type::TOP_LEFT:
return XC_top_left_corner;
case Edge::Type::TOP_RIGHT:
return XC_top_right_corner;
case Edge::Type::LEFT:
return XC_left_side;
case Edge::Type::RIGHT:
return XC_right_side;
case Edge::Type::BOTTOM:
return XC_bottom_side;
case Edge::Type::BOTTOM_LEFT:
return XC_bottom_left_corner;
case Edge::Type::BOTTOM_RIGHT:
return XC_bottom_right_corner;
default:
return XC_left_ptr;
}
}
}
DataPool::DataPool()
{
SetupTextures();
CompSize glow_size(texture::GLOW_SIZE, texture::GLOW_SIZE);
glow_texture_ = std::make_shared<cu::SimpleTexture>(GLTexture::imageDataToTexture(texture::GLOW, glow_size, GL_RGBA, GL_UNSIGNED_BYTE));
auto cb = sigc::mem_fun(this, &DataPool::SetupTextures);
Style::Get()->theme.changed.connect(sigc::hide(cb));
unity::Settings::Instance().dpi_changed.connect(cb);
}
DataPool::Ptr const& DataPool::Get()
{
if (instance_)
return instance_;
instance_.reset(new DataPool);
return instance_;
}
void DataPool::Reset()
{
instance_.reset();
}
Cursor DataPool::EdgeCursor(Edge::Type type) const
{
return screen->cursorCache(EdgeTypeToCursorShape(type));
}
void DataPool::SetupTextures()
{
auto const& style = Style::Get();
unsigned monitors = UScreen::GetDefault()->GetPluggedMonitorsNumber();
auto& settings = Settings::Instance();
bool found_normal = false;
nux::Size size;
scaled_window_buttons_.clear();
for (unsigned monitor = 0; monitor < monitors; ++monitor)
{
double scale = settings.em(monitor)->DPIScale();
bool scaled = (scale != 1.0f);
if (!scaled)
{
if (found_normal)
continue;
found_normal = true;
}
auto& destination = scaled ? scaled_window_buttons_[scale] : window_buttons_;
for (unsigned button = 0; button < window_buttons_.size(); ++button)
{
for (unsigned state = 0; state < window_buttons_[button].size(); ++state)
{
glib::Error error;
auto const& file = style->WindowButtonFile(WindowButtonType(button), WidgetState(state));
gdk_pixbuf_get_file_info(file.c_str(), &size.width, &size.height);
size.width = std::round(size.width * scale);
size.height = std::round(size.height * scale);
glib::Object<GdkPixbuf> pixbuf(gdk_pixbuf_new_from_file_at_size(file.c_str(), size.width, size.height, &error));
if (pixbuf)
{
LOG_DEBUG(logger) << "Loading texture " << file;
cu::CairoContext ctx(size.width, size.height);
gdk_cairo_set_source_pixbuf(ctx, pixbuf, 0, 0);
cairo_paint(ctx);
destination[button][state] = ctx;
}
else
{
LOG_WARN(logger) << "Impossible to load local button texture file: "
<< error << "; falling back to cairo generated one.";
int button_size = std::round((BUTTONS_SIZE + BUTTONS_PADDING * 2) * scale);
cu::CairoContext ctx(button_size, button_size, scale);
cairo_translate(ctx, BUTTONS_PADDING, BUTTONS_PADDING);
style->DrawWindowButton(WindowButtonType(button), WidgetState(state), ctx, BUTTONS_SIZE, BUTTONS_SIZE);
destination[button][state] = ctx;
}
}
}
}
}
cu::SimpleTexture::Ptr const& DataPool::GlowTexture() const
{
return glow_texture_;
}
cu::SimpleTexture::Ptr const& DataPool::ButtonTexture(WindowButtonType wbt, WidgetState ws) const
{
if (wbt >= WindowButtonType::Size || ws >= WidgetState::Size)
{
LOG_ERROR(logger) << "It has been requested an invalid button texture "
<< "WindowButtonType: " << unsigned(wbt) << ", WidgetState: "
<< unsigned(ws);
return EMPTY_BUTTON;
}
return window_buttons_[unsigned(wbt)][unsigned(ws)];
}
cu::SimpleTexture::Ptr const& DataPool::ButtonTexture(double scale, WindowButtonType wbt, WidgetState ws) const
{
if (wbt >= WindowButtonType::Size || ws >= WidgetState::Size)
{
LOG_ERROR(logger) << "It has been requested an invalid button texture "
<< "WindowButtonType: " << unsigned(wbt) << ", WidgetState: "
<< unsigned(ws);
return EMPTY_BUTTON;
}
if (scale == 1.0f)
return window_buttons_[unsigned(wbt)][unsigned(ws)];
auto it = scaled_window_buttons_.find(scale);
if (it == scaled_window_buttons_.end())
return EMPTY_BUTTON;
return it->second[unsigned(wbt)][unsigned(ws)];
}
} // decoration namespace
} // unity namespace
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