bool CSurface::LoadImage(string filename, bool load)
{
m_Filename = filename;
if (m_Filename == ButtonPath("").c_str()) return true; // ignore disabled buttons
if (load == false)
{
Register(false);
return true;
}
SDL_Surface* loadedImage = 0;
loadedImage = IMG_Load(filename.c_str()); // Load image
if (loadedImage)
{
m_Surface = m_UseAlpha? // Convert image to screen BPP
SDL_DisplayFormatAlpha(loadedImage) : // either with alpha
SDL_DisplayFormat(loadedImage); // or without alpha
SDL_FreeSurface(loadedImage); // Free old surface
}
else
{
g_LogFile.write("CSurface LoadImage loadedImage error with filename: " + m_Filename);
g_LogFile.write(SDL_GetError());
g_LogFile.write(IMG_GetError());
return false;
}
if (!m_Surface)
{
g_LogFile.write("CSurface LoadImage !m_Surface error with filename: " + m_Filename);
g_LogFile.write(SDL_GetError());
g_LogFile.write(IMG_GetError());
return false;
}
if (m_UseKey && !m_UseAlpha)
SDL_SetColorKey(m_Surface, SDL_SRCCOLORKEY, m_ColorKey);
if (!m_Cached)
Register(true);
return true;
}
bool CSurface::DrawSurface(int x, int y, SDL_Surface* destination, SDL_Rect* clip, bool resize, bool maintainRatio)
{
double scaleX = 0; double scaleY = 0;
if (m_Surface == 0)
{
if (m_ColoredSurface == true)
{
g_LogFile.ss() << "ERROR - Colored surface null: '" << m_Filename << "'"; g_LogFile.ssend();
return false;
}
if (m_Temp) SDL_FreeSurface(m_Temp);
m_Temp = 0;
if (!loaded)
{
if (m_Filename == ButtonPath("").c_str()) // fix disabled buttons
m_Filename = ImagePath("blank.png").c_str();
if (!LoadImage(m_Filename))
{
g_LogFile.ss() << "ERROR - Loading Image '" << m_Filename << "'"; g_LogFile.ssend();
return false;
}
if (m_Cached)
{
loaded = true;
}
}
}
m_TimeUsed = g_Graphics.GetTicks();
if (clip && resize)
{
if (m_Temp == 0)
{
if (maintainRatio == true)
{
if (clip->w != m_Surface->w && clip->h != m_Surface->h)
{
if (m_Surface->w > m_Surface->h) // if the width is larger so scale down based on the width but keep aspect ratio
scaleX = scaleY = ((double)clip->w / (double)m_Surface->w);
else // assume the height is larger
scaleX = scaleY = ((double)clip->h / (double)m_Surface->h);
m_Temp = zoomSurface(m_Surface, scaleX, scaleY, 1);
}
}
else
{
if (clip->w != m_Surface->w || clip->h != m_Surface->h)
{
scaleX = ((double)clip->w / (double)m_Surface->w);
scaleY = ((double)clip->h / (double)m_Surface->h);
m_Temp = zoomSurface(m_Surface, scaleX, scaleY, 1);
}
}
}
else
{
if (maintainRatio == true)
{
if (m_Temp->w != clip->w && m_Temp->h != clip->h)
{
if (m_Temp) SDL_FreeSurface(m_Temp);// free old image
m_Temp = 0;
if (m_Surface->w > m_Surface->h) // if the width is larger so scale down based on the width but keep aspect ratio
scaleX = scaleY = ((double)clip->w / (double)m_Surface->w);
else // assume the height is larger
scaleX = scaleY = ((double)clip->h / (double)m_Surface->h);
m_Temp = zoomSurface(m_Surface, scaleX, scaleY, 1);
}
}
else
{
if (m_Temp->w != clip->w || m_Temp->h != clip->h)
{
if (m_Temp) SDL_FreeSurface(m_Temp); // free old image
m_Temp = 0;
scaleX = ((double)clip->w / (double)m_Surface->w);
scaleY = ((double)clip->h / (double)m_Surface->h);
m_Temp = zoomSurface(m_Surface, scaleX, scaleY, 1);
}
}
}
}
// create and setup a SDL offset rectangle
SDL_Rect offset;
offset.x = x;
offset.y = y;
// Draw the source surface onto the destination
int error = 0;
if (destination)
{
error = m_Temp ?
SDL_BlitSurface(m_Temp, clip, destination, &offset) :
SDL_BlitSurface(m_Surface, clip, destination, &offset);
}
else // blit to the screen
{
error = m_Temp ?
SDL_BlitSurface(m_Temp, clip, g_Graphics.GetScreen(), &offset) :
SDL_BlitSurface(m_Surface, clip, g_Graphics.GetScreen(), &offset);
}
if (error == -1)
{
g_LogFile.ss() << "Error Blitting surface (" << m_Filename << ") - " << SDL_GetError(); g_LogFile.ssend();
return false;
}
return true;
}
ButtonSurface::ButtonSurface (std::string name, const char* pt, const char* ext )
: CSurface( ButtonPath((name + pt) + ext).c_str() )
{
}
ButtonSurface::ButtonSurface( std::string name )
: CSurface( ButtonPath(name + ".png") )
{
}