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92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
/* ASEPRITE
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* Copyright (C) 2001-2012 David Capello
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "base/unique_ptr.h"
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#include "gfx/rect.h"
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#include "raster/cel.h"
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#include "raster/frame_number.h"
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#include "raster/image.h"
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#include "raster/layer.h"
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#include "raster/sprite.h"
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#include "raster/stock.h"
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static bool has_cels(const Layer* layer, FrameNumber frame);
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LayerImage* create_flatten_layer_copy(Sprite* dstSprite, const Layer* srcLayer,
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const gfx::Rect& bounds,
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FrameNumber frmin, FrameNumber frmax)
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{
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UniquePtr<LayerImage> flatLayer(new LayerImage(dstSprite));
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for (FrameNumber frame=frmin; frame<=frmax; ++frame) {
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// Does this frame have cels to render?
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if (has_cels(srcLayer, frame)) {
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// Create a new image to render each frame.
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UniquePtr<Image> imageWrap(Image::create(flatLayer->getSprite()->getPixelFormat(), bounds.w, bounds.h));
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// Add the image into the sprite's stock too.
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int imageIndex = flatLayer->getSprite()->getStock()->addImage(imageWrap);
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Image* image = imageWrap.release();
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// Create the new cel for the output layer.
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UniquePtr<Cel> cel(new Cel(frame, imageIndex));
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cel->setPosition(bounds.x, bounds.y);
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// Clear the image and render this frame.
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image->clear(0);
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layer_render(srcLayer, image, -bounds.x, -bounds.y, frame);
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// Add the cel (and release the UniquePtr).
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flatLayer->addCel(cel);
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cel.release();
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}
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}
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return flatLayer.release();
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}
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// Returns true if the "layer" or its children have any cel to render
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// in the given "frame".
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static bool has_cels(const Layer* layer, FrameNumber frame)
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{
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if (!layer->is_readable())
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return false;
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switch (layer->getType()) {
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case GFXOBJ_LAYER_IMAGE:
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return static_cast<const LayerImage*>(layer)->getCel(frame) ? true: false;
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case GFXOBJ_LAYER_FOLDER: {
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LayerConstIterator it = static_cast<const LayerFolder*>(layer)->get_layer_begin();
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LayerConstIterator end = static_cast<const LayerFolder*>(layer)->get_layer_end();
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for (; it != end; ++it) {
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if (has_cels(*it, frame))
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return true;
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}
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break;
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}
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}
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return false;
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}
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