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/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved.
*
* 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; version 2 of the
* License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef _LF_IMAGEBOX_H_
#define _LF_IMAGEBOX_H_
#include "mforms/label.h"
#include "lf_view.h"
#include "mforms/app.h"
#include "base/log.h"
DEFAULT_LOG_DOMAIN(DOMAIN_MFORMS_BE);
namespace mforms {
namespace gtk {
class ImageBoxImpl : public ViewImpl
{
protected:
mutable Gtk::Image _image;
bool _scale;
virtual Gtk::Widget *get_outer() const { return &_image; }
ImageBoxImpl(::mforms::ImageBox *self)
: ViewImpl(self)
{
//_image = Gtk::manage(new Gtk::Image());
_image.set_alignment(0.5, 0.5);
_scale= false;
_image.signal_realize().connect(sigc::mem_fun(this, &ImageBoxImpl::on_realize));
setup();
}
void on_realize()
{
if (_scale)
{
int w, h;
int iw, ih;
Glib::RefPtr<Gdk::Pixbuf> pb= _image.get_pixbuf();
_image.get_size_request(w, h);
if ((w > 0 || h > 0) && pb)
{
double ratio;
iw= pb->get_width();
ih= pb->get_height();
ratio = (double)iw/ih;
if (w < 0)
pb= pb->scale_simple(h*ratio, h, Gdk::INTERP_BILINEAR);
else if (h < 0)
pb= pb->scale_simple(w, w/ratio, Gdk::INTERP_BILINEAR);
else if (w > h)
pb= pb->scale_simple(h/ratio, h, Gdk::INTERP_BILINEAR);
else
pb= pb->scale_simple(w, w/ratio, Gdk::INTERP_BILINEAR);
_image.set(pb);
}
}
}
static bool create(::mforms::ImageBox *self)
{
return new ImageBoxImpl(self) != 0;
}
static void set_image(::mforms::ImageBox *self, const std::string &file)
{
ImageBoxImpl* image = self->get_data<ImageBoxImpl>();
if (image)
{
std::string p = mforms::App::get()->get_resource_path(file);
if (p.empty())
g_warning("image %s not found", file.c_str());
else
image->_image.set(p);
}
}
static void set_image_data(::mforms::ImageBox *self, const char *data, size_t length)
{
ImageBoxImpl* image = self->get_data<ImageBoxImpl>();
if (image)
{
try
{
Glib::RefPtr<Gdk::PixbufLoader> loader(Gdk::PixbufLoader::create());
loader->write((const guint8*)data, length);
loader->close();
image->_image.set(loader->get_pixbuf());
}
catch (std::exception &e)
{
log_error("Exception loading image data: %s\n", e.what());
return;
}
}
}
static void set_scale_contents(::mforms::ImageBox *self, bool flag)
{
ImageBoxImpl* image = self->get_data<ImageBoxImpl>();
if (image)
{
image->_scale= flag;
if (flag)
{
}
}
}
static void set_image_align(::mforms::ImageBox *self, ::mforms::Alignment alignment)
{
ImageBoxImpl* image = self->get_data<ImageBoxImpl>();
if (image)
{
switch (alignment)
{
case mforms::BottomLeft:
image->_image.set_alignment(0.0, 1.0);
break;
case mforms::MiddleLeft:
image->_image.set_alignment(0.0, 0.5);
break;
case mforms::TopLeft:
image->_image.set_alignment(0.0, 0.0);
break;
case mforms::BottomCenter:
image->_image.set_alignment(0.5, 1.0);
break;
case mforms::TopCenter:
image->_image.set_alignment(0.5, 0.0);
break;
case mforms::MiddleCenter:
image->_image.set_alignment(0.5, 0.5);
break;
case mforms::BottomRight:
image->_image.set_alignment(1.0, 1.0);
break;
case mforms::MiddleRight:
image->_image.set_alignment(1.0, 0.5);
break;
case mforms::TopRight:
image->_image.set_alignment(1.0, 0.0);
break;
case mforms::WizardLabelAlignment:
break;
case mforms::NoAlign:
break;
}
}
}
public:
static void init()
{
::mforms::ControlFactory *f = ::mforms::ControlFactory::get_instance();
f->_imagebox_impl.create = &ImageBoxImpl::create;
f->_imagebox_impl.set_image = &ImageBoxImpl::set_image;
f->_imagebox_impl.set_image_data = &ImageBoxImpl::set_image_data;
f->_imagebox_impl.set_scale_contents = &ImageBoxImpl::set_scale_contents;
f->_imagebox_impl.set_image_align = &ImageBoxImpl::set_image_align;
}
};
};
};
#endif /* _LF_IMAGEBOX_H_ */
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