From 3d9771152b9fd27bea66cbba3af2fbbb79ccf68e Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 12 Jan 2013 00:07:26 +0000
Subject: Fix text on circles.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@4926 a436a847-0d15-0410-975c-d299462d15a1
---
 src/circle.c    | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/ganv_test.c |  9 +++++++++
 src/port.c      |  1 +
 src/text.c      |  4 ++++
 4 files changed, 63 insertions(+)

(limited to 'src')

diff --git a/src/circle.c b/src/circle.c
index 1d1e032..11c389f 100644
--- a/src/circle.c
+++ b/src/circle.c
@@ -94,6 +94,28 @@ ganv_circle_get_property(GObject*    object,
 	}
 }
 
+static void
+ganv_circle_resize(GanvNode* self)
+{
+	GanvNode* node = GANV_NODE(self);
+
+	if (node->impl->label) {
+		if (node->impl->label->impl->needs_layout) {
+			ganv_text_layout(node->impl->label);
+		}
+
+		// Center label
+		ganv_item_set(GANV_ITEM(node->impl->label),
+		              "x", node->impl->label->impl->coords.width / -2.0,
+		              "y", node->impl->label->impl->coords.height / -2.0,
+		              NULL);
+	}
+
+	if (parent_class->resize) {
+		parent_class->resize(self);
+	}
+}
+
 static gboolean
 ganv_circle_is_within(const GanvNode* self,
                       double          x1,
@@ -249,6 +271,7 @@ ganv_circle_draw(GanvItem* item,
                  int x, int y,
                  int width, int height)
 {
+	GanvNode*       node   = GANV_NODE(item);
 	GanvCircle*     circle = GANV_CIRCLE(item);
 	GanvCircleImpl* impl   = circle->impl;
 
@@ -281,6 +304,16 @@ ganv_circle_draw(GanvItem* item,
 		cairo_set_dash(cr, &dash_length, 1, circle->node.impl->dash_offset);
 	}
 	cairo_stroke(cr);
+
+	// Draw label
+	if (node->impl->label) {
+		GanvItem* label_item = GANV_ITEM(node->impl->label);
+
+		if (label_item->object.flags & GANV_ITEM_VISIBLE) {
+			GANV_ITEM_GET_CLASS(label_item)->draw(
+				label_item, cr, cx, cy, width, height);
+		}
+	}
 }
 
 static double
@@ -333,6 +366,7 @@ ganv_circle_class_init(GanvCircleClass* klass)
 
 	object_class->destroy = ganv_circle_destroy;
 
+	node_class->resize      = ganv_circle_resize;
 	node_class->is_within   = ganv_circle_is_within;
 	node_class->tail_vector = ganv_circle_tail_vector;
 	node_class->head_vector = ganv_circle_head_vector;
@@ -342,3 +376,18 @@ ganv_circle_class_init(GanvCircleClass* klass)
 	item_class->point  = ganv_circle_point;
 	item_class->draw   = ganv_circle_draw;
 }
+
+GanvCircle*
+ganv_circle_new(GanvCanvas* canvas,
+                const char* first_property_name, ...)
+{
+	GanvCircle* circle = GANV_CIRCLE(
+		g_object_new(ganv_circle_get_type(), "canvas", canvas, NULL));
+
+	va_list args;
+	va_start(args, first_property_name);
+	g_object_set_valist(G_OBJECT(circle), first_property_name, args);
+	va_end(args);
+
+	return circle;
+}
diff --git a/src/ganv_test.c b/src/ganv_test.c
index 97de437..31359e2 100644
--- a/src/ganv_test.c
+++ b/src/ganv_test.c
@@ -56,6 +56,15 @@ main(int argc, char** argv)
 	GanvCanvas* canvas = ganv_canvas_new(1024, 768);
 	gtk_container_add(GTK_CONTAINER(win), GTK_WIDGET(canvas));
 
+	GanvCircle* circle = ganv_circle_new(canvas,
+	                                     "x", 400.0,
+	                                     "y", 400.0,
+	                                     "draggable", TRUE,
+	                                     "label", "state",
+	                                     "radius", 32.0,
+	                                     NULL);
+	ganv_item_show(GANV_ITEM(circle));
+
 	GanvModule* module = ganv_module_new(canvas,
 	                                     "x", 10.0,
 	                                     "y", 10.0,
diff --git a/src/port.c b/src/port.c
index e134e55..3b9ba69 100644
--- a/src/port.c
+++ b/src/port.c
@@ -124,6 +124,7 @@ ganv_port_draw(GanvItem* item,
 {
 	GanvPort* port = GANV_PORT(item);
 
+	// Draw Box
 	GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
 	item_class->draw(item, cr, cx, cy, width, height);
 
diff --git a/src/text.c b/src/text.c
index ca9a126..d5779c4 100644
--- a/src/text.c
+++ b/src/text.c
@@ -301,6 +301,10 @@ ganv_text_draw(GanvItem* item,
 	double wy = impl->coords.y;
 	ganv_item_i2w(item, &wx, &wy);
 
+	if (impl->needs_layout) {
+		ganv_text_layout(text);
+	}
+
 	// Round to the nearest pixel so text isn't blurry
 	wx = lrint(wx);
 	wy = lrint(wy);
-- 
cgit v1.2.1