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91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
/*
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* CursorHardware.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 "CursorHardware.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 "../render/IImage.h"
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#include "../../lib/CConfigHandler.h"
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#include <SDL_render.h>
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#include <SDL_events.h>
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CursorHardware::CursorHardware():
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cursor(nullptr)
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{
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SDL_ShowCursor(SDL_DISABLE);
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}
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CursorHardware::~CursorHardware()
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{
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if(cursor)
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SDL_FreeCursor(cursor);
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}
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void CursorHardware::setVisible(bool on)
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{
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GH.dispatchMainThread([on]()
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{
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if (on)
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SDL_ShowCursor(SDL_ENABLE);
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else
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SDL_ShowCursor(SDL_DISABLE);
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});
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}
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void CursorHardware::setImage(std::shared_ptr<IImage> image, const Point & pivotOffset)
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{
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int videoScalingSettings = GH.screenHandler().getInterfaceScalingPercentage();
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float cursorScalingSettings = settings["video"]["cursorScalingFactor"].Float();
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int cursorScalingPercent = videoScalingSettings * cursorScalingSettings;
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Point cursorDimensions = image->dimensions() * GH.screenHandler().getScalingFactor();
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Point cursorDimensionsScaled = image->dimensions() * cursorScalingPercent / 100;
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Point pivotOffsetScaled = pivotOffset * cursorScalingPercent / 100 / GH.screenHandler().getScalingFactor();
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auto cursorSurface = CSDL_Ext::newSurface(cursorDimensions);
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CSDL_Ext::fillSurface(cursorSurface, CSDL_Ext::toSDL(Colors::TRANSPARENCY));
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image->draw(cursorSurface, Point(0,0));
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auto cursorSurfaceScaled = CSDL_Ext::scaleSurface(cursorSurface, cursorDimensionsScaled.x, cursorDimensionsScaled.y );
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auto oldCursor = cursor;
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cursor = SDL_CreateColorCursor(cursorSurfaceScaled, pivotOffsetScaled.x, pivotOffsetScaled.y);
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if (!cursor)
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logGlobal->error("Failed to set cursor! SDL says %s", SDL_GetError());
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SDL_FreeSurface(cursorSurface);
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SDL_FreeSurface(cursorSurfaceScaled);
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GH.dispatchMainThread([this, oldCursor](){
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SDL_SetCursor(cursor);
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if (oldCursor)
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SDL_FreeCursor(oldCursor);
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});
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}
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void CursorHardware::setCursorPosition( const Point & newPos )
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{
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//no-op
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}
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void CursorHardware::render()
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{
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//no-op
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}
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