2016 ソフトウェア設計及び演習用の班Wiki

gr01::プログラム

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#include <gtk/gtk.h>

gboolean 
cb_expose_event (GtkWidget       *widget,
		 GdkEventExpose  *event,
		 gpointer        user_data)

{
  GdkWindow       *drawable = widget->window;
  cairo_t         *cr;
  cairo_surface_t *surface;  
  
  cr = gdk_cairo_create (drawable);

surface = (cairo_surface_t *) user_data;
  cairo_set_source_surface (cr, surface, 0.0, 0.0);
  cairo_paint (cr);
  //cairo_set_font_size (cairo_t *cr, double size);

cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
  cairo_rectangle (cr,  10.0, 650.0, 1180.0, 140.0);
  cairo_stroke_preserve (cr);
  cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);  
  cairo_fill (cr);

cairo_set_source_rgb (cr, 0.0 , 0.0 , 0.0);
    cairo_select_font_face (cr, "VL ゴ シ ッ ク",
    CAIRO_FONT_SLANT_NORMAL,
    CAIRO_FONT_WEIGHT_NORMAL);
    cairo_move_to (cr, 90.0 , 690.0);
  cairo_set_font_size (cr, 30.0);
    cairo_show_text (cr, "さぼろー");

cairo_set_source_rgb (cr, 0.0 , 0.0 , 0.0);
    cairo_select_font_face (cr, "VL ゴ シ ッ ク",
    CAIRO_FONT_SLANT_NORMAL,
    CAIRO_FONT_WEIGHT_NORMAL);
    cairo_move_to (cr, 100.0 , 750.0);
    cairo_set_font_size (cr, 50.0);
    cairo_show_text (cr, "「かぶとむし採りに行こうぜ」");

cairo_destroy (cr);

return FALSE;
}

int 
main (int argc, char *argv[])
{
  GtkWidget       *window;
  GtkWidget       *canvas;
  cairo_surface_t *surface;
  
  gtk_init (&argc, &argv);

surface = cairo_image_surface_create_from_png ("./e1.png");
  
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW(window),
			"たんいっち");  
  gtk_widget_set_size_request
    (window,
     cairo_image_surface_get_width(surface)  * 1.0,
     cairo_image_surface_get_height(surface) * 1.0);
  g_signal_connect (G_OBJECT(window), "destroy",
		    G_CALLBACK(gtk_main_quit), NULL);

canvas = gtk_drawing_area_new ();
  gtk_container_add (GTK_CONTAINER(window), canvas);
  g_signal_connect (G_OBJECT(canvas), "expose_event",
                    G_CALLBACK (cb_expose_event), surface);

gtk_widget_show_all (window);
  gtk_main ();

cairo_surface_destroy (surface);
  
  return 0;
}

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gr01::プログラム

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