Add icon support to Button

[libs/gltk.git] / source / button.cpp

diff --git a/source/button.cpp b/source/button.cpp
index f6cf56c1f07ecbd8b0fa41a7b49e13d269b50156..ec9901620d5d562ffd3b820316f69c0c2f829d44 100644 (file)
--- a/source/button.cpp
+++ b/source/button.cpp
@@ -1,10 +1,11 @@
 /* $Id$
 
 This file is part of libmspgltk
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Copyright © 2007, 2009  Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
 
+#include <msp/gl/immediate.h>
 #include "button.h"
 #include "part.h"
 
@@ -13,6 +14,7 @@ namespace GLtk {
 
 Button::Button(const Resources &r, const std::string &t):
        Widget(r),
+       icon(0),
        pressed(false)
 {
        set_text(t);
@@ -24,6 +26,11 @@ void Button::set_text(const std::string &t)
        text=t;
 }
 
+void Button::set_icon(const GL::Texture2D *i)
+{
+       icon=i;
+}
+
 void Button::button_press(int, int, unsigned btn)
 {
        if(btn==1)
@@ -60,6 +67,28 @@ void Button::render_special(const Part &part) const
 {
        if(part.get_name()=="text")
                render_text(part, text);
+       if(part.get_name()=="icon" && icon)
+       {
+               Geometry rgeom;
+               rgeom.w=icon->get_width();
+               rgeom.h=icon->get_height();
+               part.get_alignment().apply(rgeom, geom, part.get_margin());
+
+               icon->bind();
+               GL::Immediate imm((GL::COLOR4_UBYTE, GL::TEXCOORD2, GL::VERTEX2));
+               imm.color(1.0f, 1.0f, 1.0f);
+               imm.begin(GL::QUADS);
+               imm.texcoord(0, 0);
+               imm.vertex(rgeom.x, rgeom.y);
+               imm.texcoord(1, 0);
+               imm.vertex(rgeom.x+rgeom.w, rgeom.y);
+               imm.texcoord(1, 1);
+               imm.vertex(rgeom.x+rgeom.w, rgeom.y+rgeom.h);
+               imm.texcoord(0, 1);
+               imm.vertex(rgeom.x, rgeom.y+rgeom.h);
+               imm.end();
+               GL::Texture::unbind();
+       }
 }