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#include "SDL/SDL.h"
#include "SDL/SDL_image.h"
#include "SDL/SDL_ttf.h"
#include <string>
//The attributes of the screen
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const int SCREEN_BPP = 32;
//The surfaces that will be used
SDL_Surface *image = NULL;
SDL_Surface *background = NULL;
SDL_Surface *message = NULL;
SDL_Surface *screen = NULL;
//The event structure
SDL_Event event;
//TTF - Font
TTF_Font *font = NULL;
//TTF - Color of font
SDL_Color textColor = {255,255,255};
SDL_Surface *load_image( std::string filename )
{
//Temporary storage for the image that's loaded
SDL_Surface* loadedImage = NULL;
//The optimized image that will be used
SDL_Surface* optimizedImage = NULL;
//Load the image
loadedImage = IMG_Load( filename.c_str() );
//If nothing went wrong in loading the image
if( loadedImage != NULL )
{
//Create an optimized image
optimizedImage = SDL_DisplayFormat( loadedImage );
//Free the old image
SDL_FreeSurface( loadedImage );
//If the image was optimized just fine
if(optimizedImage != NULL)
{
//Map the color key
Uint32 colorkey = SDL_MapRGB(optimizedImage->format, 0, 0xff, 0xff);
//Set all pizels of color R 0, G 0xFF, B 0xFF to be transparent
SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorkey);
}
}
//Return the optimized image
return optimizedImage;
}
void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
//Make a temporary rectangle to hold the offsets
SDL_Rect offset;
//Give the offsets to the rectangle
offset.x = x;
offset.y = y;
//Blit the surface
SDL_BlitSurface( source, NULL, destination, &offset );
}
bool init()
{
//Initialize all SDL subsystems
if(SDL_Init(SDL_INIT_EVERYTHING)==-1)
{
return false;
}
//set up screen
screen = SDL_SetVideoMode( SCREEN_WIDTH,SCREEN_HEIGHT,SCREEN_BPP, SDL_SWSURFACE );
//If there was an error in setting up the screen
if( screen == NULL )
{
return false;
}
//Initialize SDL_ttf
if((TTF_Init()) == -1)
{
return false;
}
//Set the window caption
SDL_WM_SetCaption( "TTF - Testing", NULL );
//If everything initialized fine
return true;
}
bool load_files()
{
//Load the image
image = load_image("hello.bmp");
background = load_image("grass_sampling.bmp");
TTF_OpenFont("test.ttf", 28);
//If there was an error loading the image
if(image == NULL)
{
return false;
}
//If there was an error loading the background
if(background == NULL)
{
return false;
}
//If everything loaded fine
return true;
}
void clean_up()
{
//Free the loaded image
SDL_FreeSurface(image);
SDL_FreeSurface(background);
//Close the font
TTF_CloseFont(font);
//Quit SDL_ttf
TTF_Quit();
//Quit SDL
SDL_Quit();
}
int main( int argc, char* args[] )
{
//Make sure the program waits for a quit
bool quit = false;
//Initialize
if(init()==false)
{
return 1;
}
//Load the files
if( load_files() == false )
{
return 2;
}
//Render the text
message = TTF_RenderText_Solid( font, "The quick brown fox jumps over the lazy dog", textColor );
//If there was an error rendering the text
if(message == NULL)
{
return 4;
}
//Apply the surface to the screen
apply_surface( 0, 0, background, screen );
apply_surface (0,0,image,screen);
apply_surface (0,0,message,screen);
//update screen
SDL_Flip(screen);
//While the user hasn't quit
while(quit == false)
{
//while there's an event to handle
while(SDL_PollEvent(&event))
{
//If the user has Xed out the window
if(event.type == SDL_QUIT)
{
//Quit the program
quit = true;
}
}
}
//Free the surface and quit
clean_up();
//Quit SDL
SDL_Quit();
return 0;
}
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