Attachment 2918 Details for Bug 4135 – Testcase for the bug, sorry, that I've just pasted it in the report at first.

Testcase for the bug, sorry, that I've just pasted it in the report at first.

fractals.c (text/plain), 1.67 KB, created by Vytas on 2005-08-18 14:49:06 UTC

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Filename:

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Creator: Vytas

Created: 2005-08-18 14:49:06 UTC

Size: 1.67 KB

patch

obsolete

>#include <gtk/gtk.h>
>
>koch_sala_elementas(cairo_t* cr, double stx, double sty, int n)
>{
>	if (n > 0)
>	{
>		n--;
>		stx = stx/ 4;
>		sty = sty/ 4;
>		koch_sala_elementas(cr, stx, sty, n);
>		koch_sala_elementas(cr, sty, -stx, n);
>		koch_sala_elementas(cr, stx, sty, n);
>		koch_sala_elementas(cr, -2*sty, 2*stx, n);
>		koch_sala_elementas(cr, stx, sty, n);
>		koch_sala_elementas(cr, sty, -stx, n);
>		koch_sala_elementas(cr, stx, sty, n);
>	}
>	else
>	{
>		cairo_rel_line_to(cr, stx, sty);
>		cairo_rel_line_to(cr, sty, -stx);
>		cairo_rel_line_to(cr, stx, sty);
>		cairo_rel_line_to(cr, -2*sty, 2*stx);
>		cairo_rel_line_to(cr, stx, sty);
>		cairo_rel_line_to(cr, sty, -stx);
>		cairo_rel_line_to(cr, stx, sty);
>	}
>	
>}
>
>koch_sala(cairo_t* cr, int n)
>{
>	cairo_move_to(cr, 0.2, 0.2);
>	koch_sala_elementas(cr, 0.1, 0, n);
>	koch_sala_elementas(cr, 0, 0.1, n);
>	koch_sala_elementas(cr, -0.1, 0, n);
>	koch_sala_elementas(cr, 0, -0.1, n);
>	cairo_close_path(cr);
>	cairo_fill(cr);
>}
>
>expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
>{
>	cairo_t* cr = gdk_cairo_create(widget-> window);
>	
>	cairo_scale(cr, widget->allocation.width, widget->allocation.height);
>	cairo_set_line_width (cr, 0.02);
>	koch_sala(cr, 4);
>	
>	cairo_show_page(cr);
>	
>	cairo_destroy(cr);
>	return TRUE;
>}
>
>int main (int argc, char **argv)
>{
>	gtk_init(&argc, &argv);
>	
>	GtkWidget *win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>	g_signal_connect(win, "delete_event", gtk_main_quit, NULL);
>	
>	GtkWidget* area = gtk_drawing_area_new(); 
>	gtk_widget_set_size_request (area, 200, 200);
>	g_signal_connect(G_OBJECT(area), "expose_event", G_CALLBACK(expose), NULL);
>	
>	gtk_container_add(GTK_CONTAINER(win), area);
>	
>	gtk_widget_show_all(win);
>	
>	gtk_main();
>	return 0;
>}

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Attachments on bug 4135: 2918 | 3861 | 3862 | 5940

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