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xxtjaxx on 11/05/09

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Cairo "Hello World!" examble

/ Published in: C++

A small examble on how to make a hello world image from cairo.

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#include<cairo.h>                                                                                   
#include<iostream>                                                                                  
#include<string>                                                                                    
 
using std::string;
using namespace std;
 
 
int main(int argc, char* argv[])
{                               
  int x,y,width,height;         
  float size_font;              
 
  x = 20;                       
  y = 20;                       
  width = 200;                  
  height = 40;                  
  size_font=20.0;               
  string file_path(argv[1]);    
 
 
  cairo_surface_t *surface;     
  cairo_t *cr;                  
 
 
  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
  cr = cairo_create (surface);
 
  cairo_text_extents_t te;
  cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
  cairo_select_font_face (cr, "Georgia",
                          CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
  cairo_set_font_size (cr, size_font);
  cairo_text_extents (cr, "hello world!", &te);
  cairo_move_to (cr, x ,y);
  cairo_show_text (cr, "hello world!");
  cairo_fill(cr);
  cairo_surface_write_to_png(surface , file_path.c_str());
 
    return 0;
}
/*
Compile it like this:
 
Makefile:
------------------------------------------------------
CC=g++                                                                                              
#Compiler Optionen 
C_Flags_Wall= -Wall
C_Flags_DEBUG= -DEBUG
#C_Flags += -g       
#Macros describing realtive filepaths for
#the main function file
MAIN=./main.cpp
#the projects header directory
PROJECT_HEADER=./header
#the cairo header directory
CAIRO_CFLAGS=$(shell pkg-config --cflags cairo)
CAIRO_LIBS=$(shell pkg-config --libs cairo)
#actual compiling
main: $(MAIN)
         $(CC) $(C_Flags_Wall) $(C_FLAGS_DEBUG) -o ../bin/main  $(MAIN) $(CAIRO_CFLAGS) $(CAIRO_LIBS)
------------------------------------------------------
*/

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