From c26a3e7debea01c1d2b16bceded76a7614a3e33d Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Fri, 13 Nov 2009 04:55:42 +0000
Subject: [PATCH] added Engine::getTextSize()

git-svn-id: svn://anubis/anaglym/trunk@164 99a6e188-d820-4881-8870-2d33a10e2619
---
 Engine.cc            | 9 ++++++++-
 Engine.h             | 3 ++-
 tests/cratestack.lua | 2 +-
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/Engine.cc b/Engine.cc
index 42b2879..87dd32b 100644
--- a/Engine.cc
+++ b/Engine.cc
@@ -477,7 +477,7 @@ void Engine::getScreenSize(int * width, int * height)
 }
 
 void Engine::drawText(const char * text, GLfloat r, GLfloat g, GLfloat b,
-        int ptsize, int x, int y)
+        int ptsize, float x, float y)
 {
     m_font->FaceSize(ptsize);
     glPushMatrix();
@@ -488,6 +488,13 @@ void Engine::drawText(const char * text, GLfloat r, GLfloat g, GLfloat b,
     glPopMatrix();
 }
 
+void Engine::getTextSize(const char * text, float * width, float * height)
+{
+    FTBBox box = m_font->BBox(text);
+    *width = box.Upper().Xf() - box.Lower().Xf();
+    *height = box.Upper().Yf() - box.Lower().Yf();
+}
+
 /* called by SDL when the update timer expires */
 Uint32 Engine::updateCallback(Uint32 interval, void * param)
 {
diff --git a/Engine.h b/Engine.h
index 7078cd9..d509f83 100644
--- a/Engine.h
+++ b/Engine.h
@@ -137,7 +137,8 @@ class Engine
         void debug_hook(lua_Debug * debug);
         void getScreenSize(int * width, int * height);
         void drawText(const char * text, GLfloat r, GLfloat g, GLfloat b,
-                int ptsize, int x, int y);
+                int ptsize, float x, float y);
+        void getTextSize(const char * text, float * width, float * height);
 
         /* lua services */
         int setCamera(lua_State * L);
diff --git a/tests/cratestack.lua b/tests/cratestack.lua
index 644ddf3..3054fc8 100644
--- a/tests/cratestack.lua
+++ b/tests/cratestack.lua
@@ -44,5 +44,5 @@ function mouse_moves(x, y, xrel, yrel)
 end
 
 function update_overlay_event()
-    ag.drawText("Hi there everyone!", 1, 0.7, 0, 16, 40, 40)
+    ag.drawText("Hi there everyone!", 1, 0.7, 0, 16, 0, 0)
 end