From 053eaf77fde7639d4e200d36a9db99b2d4fc615b Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 9 Apr 2013 14:22:58 -0400
Subject: a variety of fixes for the cairocanvas, but it still buggy as hell
 handling events  and lots of other stuff

---
 libs/canvas/text.cc | 35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

(limited to 'libs/canvas/text.cc')

diff --git a/libs/canvas/text.cc b/libs/canvas/text.cc
index 162f814478..4d240db3fd 100644
--- a/libs/canvas/text.cc
+++ b/libs/canvas/text.cc
@@ -1,7 +1,10 @@
+#include <gdk/gdk.h>
+
 #include <cairomm/cairomm.h>
 #include <gtkmm/label.h>
 
 #include "pbd/xml++.h"
+#include "pbd/stacktrace.h"
 
 #include "canvas/text.h"
 #include "canvas/canvas.h"
@@ -68,13 +71,6 @@ Text::redraw (Cairo::RefPtr<Cairo::Context> context) const
 	/* and draw, in the appropriate color of course */
 
 	set_source_rgba (img_context, _color);
-	
-	std::cerr << "render " << _text << " as " 
-		  << ((_color >> 24) & 0xff) / 255.0
-		  << ((_color >> 16) & 0xff) / 255.0
-		  << ((_color >>  8) & 0xff) / 255.0
-		  << ((_color >>  0) & 0xff) / 255.
-		  << std::endl;
 
 	layout->show_in_cairo_context (img_context);
 
@@ -88,18 +84,29 @@ Text::redraw (Cairo::RefPtr<Cairo::Context> context) const
 void
 Text::compute_bounding_box () const
 {
-	if (!_canvas || !_canvas->context () || _text.empty()) {
+	if (!_canvas || _text.empty()) {
 		_bounding_box = boost::optional<Rect> ();
 		_bounding_box_dirty = false;
 		return;
 	}
 
-	redraw (_canvas->context());
-
-	_bounding_box = Rect (_origin.x, _origin.y, _width - _origin.x, _height - _origin.y);
+	PangoContext* _pc = gdk_pango_context_get ();
+	Glib::RefPtr<Pango::Context> context = Glib::wrap (_pc); // context now owns _pc and will free it
+	Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (context);
+	
+	layout->set_text (_text);
+	layout->set_font_description (*_font_description);
+	layout->set_alignment (_alignment);
+	Pango::Rectangle const r = layout->get_ink_extents ();
+	
+	_bounding_box = Rect (
+		r.get_x() / Pango::SCALE,
+		r.get_y() / Pango::SCALE,
+		(r.get_x() + r.get_width()) / Pango::SCALE,
+		(r.get_y() + r.get_height()) / Pango::SCALE
+		);
+		
 	_bounding_box_dirty = false;
-
-	cerr << "bbox for " << _text << " = " << _bounding_box << endl;
 }
 
 void
@@ -113,8 +120,6 @@ Text::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) cons
 		redraw (context);
 	}
 	
-	cerr << " with " << _origin  << " and " << _width << " x " << _height << " render " << _text << endl;
-
 	context->set_source (_image, 0, 0);
 	context->rectangle (0, 0, _width, _height);
 	context->fill ();
-- 
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