Cursor.cpp

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#include "mouse/sdl/Cursor.h"
#include "common/Exception.h"
#include "common/config.h"
 
namespace eve::mouse::sdl
{
 
Cursor::Cursor(image::ImageData *data, int hotx, int hoty)
    : cursor(nullptr)
    , is_custom(true)
    , systemType("")
{
    Uint32 rmask, gmask, bmask, amask;
#ifdef EVE_BIG_ENDIAN
    rmask = 0xFF000000;
    gmask = 0x00FF0000;
    bmask = 0x0000FF00;
    amask = 0x000000FF;
#else
    rmask = 0x000000FF;
    gmask = 0x0000FF00;
    bmask = 0x00FF0000;
    amask = 0xFF000000;
#endif
 
    // int w = data->getWidth();
    // int h = data->getHeight();
    // int pitch = w * 4;
 
    // SDL_Surface *surface = SDL_CreateRGBSurfaceFrom(data->getData(), w, h, 32, pitch, rmask, gmask, bmask, amask);
    // if (!surface)
    //  throw Exception("Cannot create cursor: out of memory!");
 
    // cursor = SDL_CreateColorCursor(surface, hotx, hoty);
    // SDL_FreeSurface(surface);
 
    if (!cursor)
        throw Exception("Cannot create cursor: %s", SDL_GetError());
}
 
Cursor::Cursor(std::string cursortype)
    : cursor(nullptr)
    , is_custom(false)
    , systemType(cursortype)
{
    if (auto i = systemCursorEntries.find(cursortype); i != systemCursorEntries.end())
        cursor = SDL_CreateSystemCursor(i->second);
    else
        throw Exception("Cannot create system cursor: invalid type.");
 
    if (!cursor)
        throw Exception("Cannot create system cursor: %s", SDL_GetError());
}
 
Cursor::~Cursor()
{
    if (cursor)
        SDL_FreeCursor(cursor);
}
 
void *Cursor::getHandle() const
{
    return cursor;
}
 
std::map<std::string, SDL_SystemCursor> Cursor::systemCursorEntries =
{
    {"ARROW", SDL_SYSTEM_CURSOR_ARROW},
    {"IBEAM", SDL_SYSTEM_CURSOR_IBEAM},
    {"WAIT", SDL_SYSTEM_CURSOR_WAIT},
    {"CROSSHAIR", SDL_SYSTEM_CURSOR_CROSSHAIR},
    {"WAITARROW", SDL_SYSTEM_CURSOR_WAITARROW},
    {"SIZENWSE", SDL_SYSTEM_CURSOR_SIZENWSE},
    {"SIZENESW", SDL_SYSTEM_CURSOR_SIZENESW},
    {"SIZEWE", SDL_SYSTEM_CURSOR_SIZEWE},
    {"SIZENS", SDL_SYSTEM_CURSOR_SIZENS},
    {"SIZEALL", SDL_SYSTEM_CURSOR_SIZEALL},
    {"NO", SDL_SYSTEM_CURSOR_NO},
    {"HAND", SDL_SYSTEM_CURSOR_HAND},
};
 
} // eve::mouse::sdl