From e889ec3ccb2f45738a692c39986eaedbf85613d1 Mon Sep 17 00:00:00 2001
From: Niv Sardi <xaiki@iruya.(none)>
Date: Fri, 8 Dec 2006 01:10:01 +0100
Subject: Initial import

---
 cairo-test.c | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 cairo-test.c

(limited to 'cairo-test.c')

diff --git a/cairo-test.c b/cairo-test.c
new file mode 100644
index 0000000..f5b2272
--- /dev/null
+++ b/cairo-test.c
@@ -0,0 +1,144 @@
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtk.h>
+#include <cairo.h>
+#include <math.h>
+
+#define SECOND_INTERVAL  1000
+
+#define DEFAULT_WIDTH  200
+#define DEFAULT_HEIGHT 100
+
+
+gboolean on_key_press (GtkWidget *widget, GdkEventKey *key, gpointer p) {
+	if (key->type == GDK_KEY_PRESS)
+	{
+		switch (key->keyval)
+		{
+			case GDK_Escape :
+				gtk_main_quit ();
+			break;
+		}
+	}
+
+	return FALSE;
+}
+
+static void paint (GtkWidget *widget, GdkEventExpose *eev, gpointer p) {
+	gint width, height, cache;
+	cairo_t *cr;
+	gint i;
+	gchar d[2] = {'0','\0'};
+	gfloat colors[6][3] = {{0.0f, 0.0f, 1.0f},	
+			       {0.0f, 1.0f, 0.0f},
+			       {1.0f, 0.0f, 0.0f},
+			       {1.0f, 1.0f, 0.0f},
+			       {1.0f, 0.0f, 1.0f},
+			       {0.0f, 1.0f, 1.1f}};
+	
+	width  = widget->allocation.width;
+	height = widget->allocation.height;
+
+	cr = gdk_cairo_create (widget->window);
+	cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);	
+
+	cairo_set_source_rgba (cr, 1.0f, 1.0f, 1.0f, 0.4f);	
+
+	cairo_paint (cr);
+
+	cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
+				            CAIRO_FONT_WEIGHT_BOLD);
+
+	for (i = 0; i < 6; i++) {
+		cairo_save (cr);
+  		  cairo_set_font_size (cr, 10);
+		  cairo_set_source_rgba (cr, colors[i][0],
+					     colors[i][1],
+				             colors[i][2],
+					 1.0f);
+		  cairo_move_to (cr, 10*i, 10);
+		  d[0] = '0' + i;
+		  cairo_show_text (cr, d);
+		cairo_restore (cr);
+	}
+	
+
+	cairo_save (cr);
+	cairo_set_source_rgba (cr, 1.0f, 1.0f, 0.0f, 1.0f);       
+	cairo_move_to (cr, 10, 20);
+	cairo_translate (cr, width/2, height/2);
+
+
+	for ( i = 0; i < 4; i++ ) {		
+		cairo_translate (cr, -width/2, -height/2);
+
+		cairo_curve_to (cr,  10, 20, 10, 10, 20, 10);
+		cairo_line_to  (cr,  width - 20, 10);
+		
+		cairo_translate (cr, width/2, height/2);
+		cairo_rotate (cr, M_PI/2.0);
+		cache = width; width = height; height = cache;
+	}
+
+	cairo_fill_preserve (cr);
+	cairo_set_source_rgba (cr, 0.0f, 1.0f, 0.0f, 0.4f);
+	cairo_stroke (cr);	
+	cairo_restore (cr);
+	
+	cairo_destroy (cr);
+}
+
+static void install_colormap (GtkWidget *w) {
+	GdkScreen* screen     = gtk_widget_get_screen (w);
+	GdkColormap* colormap = gdk_screen_get_rgba_colormap (screen);
+
+	if (!colormap)
+		colormap = gdk_screen_get_rgb_colormap (screen);
+
+	gtk_widget_set_colormap (w, colormap);
+}	       
+	
+gint main (gint argc, gchar **argv) { 
+	GtkWidget *window;
+
+	gtk_init(&argc, &argv);
+	
+	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+	gtk_window_stick (GTK_WINDOW (window));
+	//	gtk_window_set_keep_below (GTK_WINDOW (window), TRUE);
+
+        gtk_window_set_skip_taskbar_hint (GTK_WINDOW (window), TRUE);
+	gtk_window_set_skip_pager_hint   (GTK_WINDOW (window), TRUE);
+	// gtk_window_set_accept_focus      (GTK_WINDOW (window), FALSE);
+
+	gtk_window_set_decorated (GTK_WINDOW (window), TRUE);
+	gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+	gtk_widget_set_app_paintable (window, TRUE);
+	
+	gtk_window_set_default_size (GTK_WINDOW (window),
+				     DEFAULT_WIDTH,
+				     DEFAULT_HEIGHT);
+
+	install_colormap(window);
+	
+	gtk_widget_add_events (window, GDK_BUTTON_PRESS_MASK);
+
+	g_signal_connect (G_OBJECT (window), "expose-event",
+			  G_CALLBACK (paint),
+			  NULL);
+	
+	g_signal_connect (G_OBJECT (window),
+			  "key-press-event",
+			  G_CALLBACK (on_key_press),
+			  NULL);
+
+	gtk_widget_show_all (window);
+
+	gtk_main ();
+
+	return 0;
+}
+	
+	
+
+
-- 
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