+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file stretch.cpp
-** \brief Implementation of the "Stretch" layer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007 Chris Moore
-**
-** This package 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; either version 2 of
-** the License, or (at your option) any later version.
-**
-** This package 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.
-** \endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#define SYNFIG_NO_ANGLE
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "stretch.h"
-#include <synfig/string.h>
-#include <synfig/time.h>
-#include <synfig/context.h>
-#include <synfig/paramdesc.h>
-#include <synfig/renddesc.h>
-#include <synfig/surface.h>
-#include <synfig/value.h>
-#include <synfig/valuenode.h>
-#include <synfig/transform.h>
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace etl;
-using namespace std;
-using namespace synfig;
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Layer_Stretch);
-SYNFIG_LAYER_SET_NAME(Layer_Stretch,"stretch");
-SYNFIG_LAYER_SET_LOCAL_NAME(Layer_Stretch,N_("Stretch"));
-SYNFIG_LAYER_SET_CATEGORY(Layer_Stretch,N_("Distortions"));
-SYNFIG_LAYER_SET_VERSION(Layer_Stretch,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Layer_Stretch,"$Id$");
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-/* === E N T R Y P O I N T ================================================= */
-
-Layer_Stretch::Layer_Stretch():
- amount(1,1),
- center(0,0)
-{
-}
-
-
-bool
-Layer_Stretch::set_param(const String & param, const ValueBase &value)
-{
- IMPORT(amount);
- IMPORT(center);
-
- return false;
-}
-
-ValueBase
-Layer_Stretch::get_param(const String ¶m)const
-{
- EXPORT(amount);
- EXPORT(center);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return ValueBase();
-}
-
-Layer::Vocab
-Layer_Stretch::get_param_vocab()const
-{
- Layer::Vocab ret;
-
- ret.push_back(ParamDesc("amount")
- .set_local_name(_("Amount"))
- .set_origin("center")
- );
-
- ret.push_back(ParamDesc("center")
- .set_local_name(_("Center"))
- );
-
- return ret;
-}
-
-synfig::Layer::Handle
-Layer_Stretch::hit_check(synfig::Context context, const synfig::Point &pos)const
-{
- Point npos(pos);
- npos[0]=(npos[0]-center[0])/amount[0]+center[0];
- npos[1]=(npos[1]-center[1])/amount[1]+center[1];
- return context.hit_check(npos);
-}
-
-Color
-Layer_Stretch::get_color(Context context, const Point &pos)const
-{
- Point npos(pos);
- npos[0]=(npos[0]-center[0])/amount[0]+center[0];
- npos[1]=(npos[1]-center[1])/amount[1]+center[1];
- return context.get_color(npos);
-}
-
-class Stretch_Trans : public Transform
-{
- etl::handle<const Layer_Stretch> layer;
-public:
- Stretch_Trans(const Layer_Stretch* x):Transform(x->get_guid()),layer(x) { }
-
- synfig::Vector perform(const synfig::Vector& x)const
- {
- return Vector((x[0]-layer->center[0])*layer->amount[0]+layer->center[0],
- (x[1]-layer->center[1])*layer->amount[1]+layer->center[1]);
- }
-
- synfig::Vector unperform(const synfig::Vector& x)const
- {
- return Vector((x[0]-layer->center[0])/layer->amount[0]+layer->center[0],
- (x[1]-layer->center[1])/layer->amount[1]+layer->center[1]);
- }
-};
-etl::handle<Transform>
-Layer_Stretch::get_transform()const
-{
- return new Stretch_Trans(this);
-}
-
-bool
-Layer_Stretch::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- if (amount[0] == 0 || amount[1] == 0)
- {
- surface->set_wh(renddesc.get_w(), renddesc.get_h());
- surface->clear();
- return true;
- }
-
- RendDesc desc(renddesc);
- desc.clear_flags();
- // Adjust the top_left and bottom_right points
- // for our zoom amount
- Point npos;
- npos[0]=(desc.get_tl()[0]-center[0])/amount[0]+center[0];
- npos[1]=(desc.get_tl()[1]-center[1])/amount[1]+center[1];
- desc.set_tl(npos);
- npos[0]=(desc.get_br()[0]-center[0])/amount[0]+center[0];
- npos[1]=(desc.get_br()[1]-center[1])/amount[1]+center[1];
- desc.set_br(npos);
-
- // Render the scene
- return context.accelerated_render(surface,quality,desc,cb);
-}
-
-Rect
-Layer_Stretch::get_full_bounding_rect(Context context)const
-{
- Rect rect(context.get_full_bounding_rect());
- Point min(rect.get_min()), max(rect.get_max());
-
- return Rect(Point((min[0]-center[0])*amount[0]+center[0],
- (min[1]-center[1])*amount[1]+center[1]),
- Point((max[0]-center[0])*amount[0]+center[0],
- (max[1]-center[1])*amount[1]+center[1]));
-}
projects / synfig.git / blobdiff