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147 lines
3.3 KiB
C++
147 lines
3.3 KiB
C++
/*
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* ImageScaled.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "ImageScaled.h"
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#include "SDLImage.h"
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#include "SDL_Extensions.h"
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#include "../gui/CGuiHandler.h"
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#include "../render/IScreenHandler.h"
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#include "../render/Colors.h"
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#include "../../lib/constants/EntityIdentifiers.h"
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#include <SDL_surface.h>
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ImageScaled::ImageScaled(const ImageLocator & inputLocator, const std::shared_ptr<ISharedImage> & source, EImageBlitMode mode)
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: source(source)
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, locator(inputLocator)
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, colorMultiplier(Colors::WHITE_TRUE)
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, alphaValue(SDL_ALPHA_OPAQUE)
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, blitMode(mode)
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{
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setBodyEnabled(true);
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if (mode == EImageBlitMode::ALPHA)
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setShadowEnabled(true);
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}
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std::shared_ptr<ISharedImage> ImageScaled::getSharedImage() const
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{
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return body;
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}
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void ImageScaled::scaleInteger(int factor)
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{
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assert(0);
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}
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void ImageScaled::scaleTo(const Point & size)
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{
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if (body)
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body = body->scaleTo(size * GH.screenHandler().getScalingFactor(), nullptr);
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}
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void ImageScaled::exportBitmap(const boost::filesystem::path &path) const
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{
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source->exportBitmap(path, nullptr);
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}
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bool ImageScaled::isTransparent(const Point &coords) const
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{
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return source->isTransparent(coords);
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}
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Point ImageScaled::dimensions() const
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{
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return source->dimensions();
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}
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void ImageScaled::setAlpha(uint8_t value)
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{
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alphaValue = value;
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}
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void ImageScaled::setBlitMode(EImageBlitMode mode)
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{
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blitMode = mode;
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}
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void ImageScaled::draw(SDL_Surface *where, const Point &pos, const Rect *src) const
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{
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if (shadow)
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shadow->draw(where, nullptr, pos, src, Colors::WHITE_TRUE, alphaValue, blitMode);
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if (body)
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body->draw(where, nullptr, pos, src, Colors::WHITE_TRUE, alphaValue, blitMode);
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if (overlay)
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overlay->draw(where, nullptr, pos, src, colorMultiplier, colorMultiplier.a * alphaValue / 255, blitMode);
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}
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void ImageScaled::setOverlayColor(const ColorRGBA & color)
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{
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colorMultiplier = color;
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}
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void ImageScaled::playerColored(PlayerColor player)
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{
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playerColor = player;
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if (body)
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setBodyEnabled(true); // regenerate
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}
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void ImageScaled::shiftPalette(uint32_t firstColorID, uint32_t colorsToMove, uint32_t distanceToMove)
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{
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// TODO: implement
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}
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void ImageScaled::adjustPalette(const ColorFilter &shifter, uint32_t colorsToSkipMask)
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{
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// TODO: implement
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}
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void ImageScaled::setShadowEnabled(bool on)
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{
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assert(blitMode == EImageBlitMode::ALPHA);
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if (on)
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{
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locator.layer = EImageLayer::SHADOW;
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locator.playerColored = PlayerColor::CANNOT_DETERMINE;
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shadow = GH.renderHandler().loadImage(locator, blitMode)->getSharedImage();
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}
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else
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shadow = nullptr;
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}
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void ImageScaled::setBodyEnabled(bool on)
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{
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if (on)
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{
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locator.layer = blitMode == EImageBlitMode::ALPHA ? EImageLayer::BODY : EImageLayer::ALL;
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locator.playerColored = playerColor;
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body = GH.renderHandler().loadImage(locator, blitMode)->getSharedImage();
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}
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else
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body = nullptr;
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}
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void ImageScaled::setOverlayEnabled(bool on)
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{
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assert(blitMode == EImageBlitMode::ALPHA);
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if (on)
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{
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locator.layer = EImageLayer::OVERLAY;
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locator.playerColored = PlayerColor::CANNOT_DETERMINE;
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overlay = GH.renderHandler().loadImage(locator, blitMode)->getSharedImage();
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}
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else
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overlay = nullptr;
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}
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