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added Engine::getTextSize()

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git-svn-id: svn://anubis/anaglym/trunk@164 99a6e188-d820-4881-8870-2d33a10e2619
This commit is contained in:
Josh Holtrop 2009-11-13 04:55:42 +00:00
parent c478b44d28
commit c26a3e7deb
3 changed files with 11 additions and 3 deletions
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9
Engine.cc
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@ -477,7 +477,7 @@ void Engine::getScreenSize(int * width, int * height)
} }
void Engine::drawText(const char * text, GLfloat r, GLfloat g, GLfloat b, 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); m_font->FaceSize(ptsize);
glPushMatrix(); glPushMatrix();
@ -488,6 +488,13 @@ void Engine::drawText(const char * text, GLfloat r, GLfloat g, GLfloat b,
glPopMatrix(); 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 */ /* called by SDL when the update timer expires */
Uint32 Engine::updateCallback(Uint32 interval, void * param) Uint32 Engine::updateCallback(Uint32 interval, void * param)
{ {

3
Engine.h
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@ -137,7 +137,8 @@ class Engine
void debug_hook(lua_Debug * debug); void debug_hook(lua_Debug * debug);
void getScreenSize(int * width, int * height); void getScreenSize(int * width, int * height);
void drawText(const char * text, GLfloat r, GLfloat g, GLfloat b, 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 */ /* lua services */
int setCamera(lua_State * L); int setCamera(lua_State * L);

2
tests/cratestack.lua
View File

@ -44,5 +44,5 @@ function mouse_moves(x, y, xrel, yrel)
end end
function update_overlay_event() 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 end