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/*
* Copyright (c) 2007, 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
*/
#include "image_figure.h"
using namespace wbfig;
using namespace base;
Image::Image(mdc::Layer *layer, FigureEventHub *hub, const model_ObjectRef &self)
: BaseFigure(layer, hub, self), _image(layer)
{
set_cache_toplevel_contents(false);
set_accepts_focus();
set_accepts_selection();
set_allowed_resizing(true, true);
add(&_image, true, true, false);
_image.set_auto_sizing(true);
_keep_aspect_ratio= false;
}
static void constrain_aspect_ratio(mdc::ItemHandle *handle, Size &size, double ratio)
{
if ((handle->get_tag() & (HDL_LEFT|HDL_RIGHT)) != 0)
size.height= size.width/ratio;
else
size.width= size.height*ratio;
}
cairo_surface_t *Image::get_image()
{
return _image.get_image();
}
void Image::keep_aspect_ratio(bool flag)
{
_keep_aspect_ratio= flag;
if (flag)
{
cairo_surface_t *surf= _image.get_image();
if (surf)
{
double aspect= get_aspect_ratio();
double width= _image.get_size().width;
double new_height= width / aspect;
if (fabs(_image.get_size().height-new_height) > 1)
set_fixed_size(Size(width, new_height));
set_drag_handle_constrainer(boost::bind(constrain_aspect_ratio, _1, _2, aspect));
}
}
else
set_drag_handle_constrainer(boost::function<void (mdc::ItemHandle*,Size&) >());
}
double Image::get_aspect_ratio()
{
Size size= _image.get_image_size();
return size.width / size.height;
}
void Image::set_image(cairo_surface_t *image)
{
_image.set_image(image);
}
bool Image::set_image(const std::string &filename)
{
return _image.set_image(filename);
}
void Image::set_allow_manual_resizing(bool flag)
{
if (!flag && _image.auto_sizing())
{
// if auto-sizing is being disabled, set the fixed size to the current size, so that it
// has an initial size
_image.set_fixed_size(_image.get_size());
}
_image.set_auto_sizing(!flag);
if (!flag)
relayout();
}
//--------------------------------------------------------------------------------------------------
bool Image::on_click(mdc::CanvasItem *target, const Point &point, mdc::MouseButton button, mdc::EventState state)
{
if (!_hub->figure_click(represented_object(), target, point, button, state))
return super::on_click(target, point, button, state);
return false;
}
//--------------------------------------------------------------------------------------------------
bool Image::on_double_click(mdc::CanvasItem *target, const Point &point, mdc::MouseButton button, mdc::EventState state)
{
if (!_hub->figure_double_click(represented_object(), target, point, button, state))
return super::on_double_click(target, point, button, state);
return false;
}
//--------------------------------------------------------------------------------------------------
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