From 71a3f61d25d6998c07db899148bd0bac48ad0026 Mon Sep 17 00:00:00 2001
From: infirit <infirit@gmail.com>
Date: Sun, 12 Jul 2015 14:33:00 +0200
Subject: popsquares: Use cairo for Gtk+2

---
 savers/gste-popsquares.c | 70 +++++++++++++++---------------------------------
 1 file changed, 21 insertions(+), 49 deletions(-)

(limited to 'savers')

diff --git a/savers/gste-popsquares.c b/savers/gste-popsquares.c
index db7c36f..245be48 100644
--- a/savers/gste-popsquares.c
+++ b/savers/gste-popsquares.c
@@ -51,9 +51,6 @@ struct GSTEPopsquaresPrivate
 	int        ncolors;
 	int        subdivision;
 
-#if !GTK_CHECK_VERSION (3, 0, 0)
-	GdkGC     *gc;
-#endif
 	GdkColor  *colors;
 	square    *squares;
 
@@ -433,14 +430,6 @@ setup_colors (GSTEPopsquares *pop)
 
 	set_colors (window, &fg, &bg);
 
-#if !GTK_CHECK_VERSION (3, 0, 0)
-	if (pop->priv->gc)
-	{
-		g_object_unref (pop->priv->gc);
-	}
-	pop->priv->gc = gdk_gc_new (window);
-#endif
-
 	if (pop->priv->colors)
 	{
 		g_free (pop->priv->colors);
@@ -491,31 +480,26 @@ static gboolean
 #if GTK_CHECK_VERSION (3, 0, 0)
 gste_popsquares_real_draw (GtkWidget *widget,
                            cairo_t   *cr)
+{
+	if (GTK_WIDGET_CLASS (parent_class)->draw) {
+		GTK_WIDGET_CLASS (parent_class)->draw (widget, cr);
+	}
 #else
 gste_popsquares_real_expose (GtkWidget      *widget,
                              GdkEventExpose *event)
-#endif
 {
-	gboolean handled = FALSE;
-
-	/* draw */
-
-	/* FIXME: should double buffer? */
-
-#if GTK_CHECK_VERSION (3, 0, 0)
-	if (GTK_WIDGET_CLASS (parent_class)->draw)
-	{
-		handled = GTK_WIDGET_CLASS (parent_class)->draw (widget, cr);
-	}
-	draw_frame (GSTE_POPSQUARES (widget), cr);
-#else
-	if (GTK_WIDGET_CLASS (parent_class)->expose_event)
-	{
-		handled = GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
+	if (GTK_WIDGET_CLASS (parent_class)->expose_event) {
+		GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
 	}
+	cairo_t *cr = gdk_cairo_create (event->window);
 #endif
 
-	return handled;
+	draw_frame (GSTE_POPSQUARES (widget), cr);
+
+#if !GTK_CHECK_VERSION (3, 0, 0)
+	cairo_destroy (cr);
+#endif
+	return TRUE;
 }
 
 static gboolean
@@ -565,17 +549,10 @@ gste_popsquares_class_init (GSTEPopsquaresClass *klass)
 	g_type_class_add_private (klass, sizeof (GSTEPopsquaresPrivate));
 }
 
-static gboolean
-draw_iter (GSTEPopsquares *pop)
-#if GTK_CHECK_VERSION (3, 0, 0)
-{
-	gtk_widget_queue_draw (GTK_WIDGET (pop));
-	return TRUE;
-}
 
 static void
-draw_frame (GSTEPopsquares *pop, cairo_t *cr)
-#endif
+draw_frame (GSTEPopsquares *pop,
+            cairo_t        *cr)
 {
 	int      border = 1;
 	gboolean twitch = FALSE;
@@ -609,18 +586,11 @@ draw_frame (GSTEPopsquares *pop, cairo_t *cr)
 		{
 			square *s = (square *) &pop->priv->squares [gw * y + x];
 
-#if GTK_CHECK_VERSION (3, 0, 0)
 			gdk_cairo_set_source_color (cr, &(pop->priv->colors [s->color]));
 			cairo_rectangle (cr, s->x, s->y,
 			                 border ? s->w - border : s->w,
 			                 border ? s->h - border : s->h);
 			cairo_fill (cr);
-#else
-			gdk_gc_set_foreground (pop->priv->gc, &(pop->priv->colors [s->color]));
-			gdk_draw_rectangle (window, pop->priv->gc, TRUE, s->x, s->y,
-			                    border ? s->w - border : s->w,
-			                    border ? s->h - border : s->h);
-#endif
 			s->color++;
 
 			if (s->color == pop->priv->ncolors)
@@ -636,8 +606,13 @@ draw_frame (GSTEPopsquares *pop, cairo_t *cr)
 			}
 		}
 	}
+}
 
-	return;
+static gboolean
+draw_iter (GSTEPopsquares *pop)
+{
+	gtk_widget_queue_draw (GTK_WIDGET (pop));
+	return TRUE;
 }
 
 static void
@@ -674,9 +649,6 @@ gste_popsquares_finalize (GObject *object)
 
 	g_free (pop->priv->squares);
 	g_free (pop->priv->colors);
-#if !GTK_CHECK_VERSION (3, 0, 0)
-	g_object_unref (pop->priv->gc);
-#endif
 
 	G_OBJECT_CLASS (parent_class)->finalize (object);
 }
-- 
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