mirror of
https://github.com/vcmi/vcmi.git
synced 2024-11-24 08:32:34 +02:00
103 lines
2.3 KiB
C++
103 lines
2.3 KiB
C++
/*
|
|
* CursorSoftware.cpp, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
|
|
#include "StdInc.h"
|
|
#include "CursorSoftware.h"
|
|
|
|
#include "../render/Colors.h"
|
|
#include "../render/IImage.h"
|
|
#include "../CMT.h"
|
|
#include "SDL_Extensions.h"
|
|
|
|
#include <SDL_render.h>
|
|
#include <SDL_events.h>
|
|
|
|
void CursorSoftware::render()
|
|
{
|
|
//texture must be updated in the main (renderer) thread, but changes to cursor type may come from other threads
|
|
if (needUpdate)
|
|
updateTexture();
|
|
|
|
Point renderPos = pos - pivot;
|
|
|
|
SDL_Rect destRect;
|
|
destRect.x = renderPos.x;
|
|
destRect.y = renderPos.y;
|
|
destRect.w = 40;
|
|
destRect.h = 40;
|
|
|
|
SDL_RenderCopy(mainRenderer, cursorTexture, nullptr, &destRect);
|
|
}
|
|
|
|
void CursorSoftware::createTexture(const Point & dimensions)
|
|
{
|
|
if(cursorTexture)
|
|
SDL_DestroyTexture(cursorTexture);
|
|
|
|
if (cursorSurface)
|
|
SDL_FreeSurface(cursorSurface);
|
|
|
|
cursorSurface = CSDL_Ext::newSurface(dimensions.x, dimensions.y);
|
|
cursorTexture = SDL_CreateTexture(mainRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, dimensions.x, dimensions.y);
|
|
|
|
SDL_SetSurfaceBlendMode(cursorSurface, SDL_BLENDMODE_NONE);
|
|
SDL_SetTextureBlendMode(cursorTexture, SDL_BLENDMODE_BLEND);
|
|
}
|
|
|
|
void CursorSoftware::updateTexture()
|
|
{
|
|
if (!cursorSurface || Point(cursorSurface->w, cursorSurface->h) != cursorImage->dimensions())
|
|
createTexture(cursorImage->dimensions());
|
|
|
|
CSDL_Ext::fillSurface(cursorSurface, CSDL_Ext::toSDL(Colors::TRANSPARENCY));
|
|
|
|
cursorImage->draw(cursorSurface);
|
|
SDL_UpdateTexture(cursorTexture, nullptr, cursorSurface->pixels, cursorSurface->pitch);
|
|
needUpdate = false;
|
|
}
|
|
|
|
void CursorSoftware::setImage(std::shared_ptr<IImage> image, const Point & pivotOffset)
|
|
{
|
|
assert(image != nullptr);
|
|
cursorImage = image;
|
|
pivot = pivotOffset;
|
|
needUpdate = true;
|
|
}
|
|
|
|
void CursorSoftware::setCursorPosition( const Point & newPos )
|
|
{
|
|
pos = newPos;
|
|
}
|
|
|
|
void CursorSoftware::setVisible(bool on)
|
|
{
|
|
visible = on;
|
|
}
|
|
|
|
CursorSoftware::CursorSoftware():
|
|
cursorTexture(nullptr),
|
|
cursorSurface(nullptr),
|
|
needUpdate(false),
|
|
visible(false),
|
|
pivot(0,0)
|
|
{
|
|
SDL_ShowCursor(SDL_DISABLE);
|
|
}
|
|
|
|
CursorSoftware::~CursorSoftware()
|
|
{
|
|
if(cursorTexture)
|
|
SDL_DestroyTexture(cursorTexture);
|
|
|
|
if (cursorSurface)
|
|
SDL_FreeSurface(cursorSurface);
|
|
}
|
|
|