Attachment 36502 Details for Bug 28760 – Test case

Test case

cairo-pattern-bug.c (text/x-csrc), 2.45 KB, created by Ruslan Kabatsayev on 2010-06-25 14:28:06 UTC

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Filename:

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Creator: Ruslan Kabatsayev

Created: 2010-06-25 14:28:06 UTC

Size: 2.45 KB

patch

obsolete

>#include <gtk/gtk.h>
>#include <math.h>
>
>gboolean on_expose(GtkWidget* widget, GdkEventExpose *event, gpointer user_data)
>{
>	double width=widget->allocation.width,height=widget->allocation.height;
>	cairo_t* crWin=gdk_cairo_create(widget->window); // will draw here using pattern we create
>	cairo_surface_t* csWin=cairo_get_target(crWin);
>	cairo_surface_t* csNew=cairo_surface_create_similar(csWin,
>			CAIRO_CONTENT_COLOR_ALPHA,50,50); // surface for preparing the pattern
>	cairo_t* crPix=cairo_create(csNew);
>	// Create pattern
>	cairo_set_source_rgba(crPix,1,0,0,0); // test if alpha is just lost (then the background should become red)
>	cairo_paint(crPix);
>	cairo_set_source_rgb(crPix,0.3,0.3,0);
>	cairo_arc(crPix,25,25,25,0,2*M_PI);
>	cairo_fill(crPix);
>
>	// Clear window
>	cairo_set_source_rgb(crWin,1,1,1);
>	cairo_paint(crWin);
>
>	cairo_pattern_t* pat=cairo_pattern_create_for_surface(csNew);
>
>	cairo_save(crWin);
>		// Test REFLECT in top-left corner
>		cairo_pattern_set_extend(pat,CAIRO_EXTEND_REFLECT);
>		cairo_set_source(crWin,pat);
>		cairo_rectangle(crWin,0,0,width/2,height/2);
>		cairo_fill(crWin);
>		// Test REPEAT in bottom-right corner
>		// XXX here comes the bug...
>		cairo_pattern_set_extend(pat,CAIRO_EXTEND_REPEAT);
>		cairo_set_source(crWin,pat);
>		cairo_rectangle(crWin,width/2,height/2,width/2,height/2);
>		cairo_fill(crWin);
>		// Test PAD in top-right corner
>		cairo_translate(crWin,width/2,0);
>		cairo_pattern_set_extend(pat,CAIRO_EXTEND_PAD);
>		cairo_set_source(crWin,pat);
>		cairo_rectangle(crWin,0,0,width/2,height/2);
>		cairo_fill(crWin);
>		// Test NONE in bottom-left corner
>		cairo_translate(crWin,-width/2,height/2);
>		cairo_pattern_set_extend(pat,CAIRO_EXTEND_NONE);
>		cairo_set_source(crWin,pat);
>		cairo_rectangle(crWin,0,0,width/2,height/2);
>		cairo_fill(crWin);
>	cairo_restore(crWin);
>
>	// Separate window quadrants
>	cairo_set_source_rgb(crWin,0.25,0.5,1);
>	cairo_move_to(crWin,0,height/2);
>	cairo_line_to(crWin,width,height/2);
>	cairo_stroke(crWin);
>	cairo_move_to(crWin,width/2,0);
>	cairo_line_to(crWin,width/2,height);
>	cairo_stroke(crWin);
>
>	cairo_destroy(crPix);
>	cairo_destroy(crWin);
>	return TRUE;
>}
>
>int main(int argc, char** argv)
>{
>	gtk_init(&argc,&argv);
>	GtkWidget* window;
>	window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
>	gtk_window_set_title(GTK_WINDOW(window),"Cairo Exp");
>	g_signal_connect(G_OBJECT(window),"destroy",G_CALLBACK(gtk_main_quit),NULL);
>	g_signal_connect(G_OBJECT(window),"expose-event",G_CALLBACK(on_expose),NULL);
>	gtk_widget_show(window);
>
>	gtk_main();
>}

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Attachments on bug 28760: 36502 | 36503

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