*** empty log message ***

panda/src/grutil/Sources.pp

@@ -7,10 +7,12 @@
     sgraph gobj linmath putil
 
   #define SOURCES \
-    config_grutil.cxx config_grutil.h lineSegs.I lineSegs.cxx \
-    lineSegs.h
+    cardMaker.I cardMaker.cxx cardMaker.h \
+    config_grutil.cxx config_grutil.h \
+    lineSegs.I lineSegs.cxx lineSegs.h
 
   #define INSTALL_HEADERS \
+    cardMaker.I cardMaker.h \
     lineSegs.I lineSegs.h
 
   #define IGATESCAN all

panda/src/grutil/cardMaker.I

@@ -0,0 +1,83 @@
+// Filename: cardMaker.I
+// Created by:  drose (06Jul01)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// [email protected] .
+//
+////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::Constructor
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+INLINE CardMaker::
+CardMaker() {
+  reset();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::Destructor
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+INLINE CardMaker::
+~CardMaker() {
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::set_uv_range
+//       Access: Public
+//  Description: Sets the range of UV's that will be applied to the
+//               vertices.  If set_has_uvs() is true (as it is by
+//               default), the vertices will be generated with the
+//               indicated range of UV's, which will be useful if a
+//               texture is applied.
+////////////////////////////////////////////////////////////////////
+INLINE void CardMaker::
+set_uv_range(const TexCoordf &ll, const TexCoordf &ur) {
+  _ll = ll;
+  _ur = ur;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::set_has_uvs
+//       Access: Public
+//  Description: Sets the flag indicating whether vertices will be
+//               generated with UV's or not.
+////////////////////////////////////////////////////////////////////
+INLINE void CardMaker::
+set_has_uvs(bool flag) {
+  _has_uvs = flag;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::set_frame
+//       Access: Public
+//  Description: Sets the size of the card.
+////////////////////////////////////////////////////////////////////
+INLINE void CardMaker::
+set_frame(float left, float right, float bottom, float top) {
+  set_frame(LVecBase4f(left, right, bottom, top));
+} 
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::set_frame
+//       Access: Public
+//  Description: Sets the size of the card.
+////////////////////////////////////////////////////////////////////
+INLINE void CardMaker::
+set_frame(const LVecBase4f &frame) {
+  _frame = frame;
+}

panda/src/grutil/cardMaker.cxx

@@ -0,0 +1,83 @@
+// Filename: cardMaker.cxx
+// Created by:  drose (06Jul01)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// [email protected] .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "cardMaker.h"
+#include "geomNode.h"
+#include "geomTristrip.h"
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::reset
+//       Access: Public
+//  Description: Resets all the parameters to their initial defaults.
+////////////////////////////////////////////////////////////////////
+void CardMaker::
+reset() {
+  _has_uvs = true;
+  _ll.set(0.0, 0.0);
+  _ur.set(1.0, 1.0);
+  _frame.set(0.0, 1.0, 0.0, 1.0);
+}
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CardMaker::generate
+//       Access: Public
+//  Description: Generates a GeomNode that renders the specified
+//               geometry.
+////////////////////////////////////////////////////////////////////
+PT_Node CardMaker::
+generate() {
+  PT(GeomNode) gnode = new GeomNode("card");
+  Geom *geom = new GeomTristrip;
+  gnode->add_geom(geom);
+
+  float left = _frame[0];
+  float right = _frame[1];
+  float bottom = _frame[2];
+  float top = _frame[3];
+
+  PTA_int lengths(0);
+  lengths.push_back(4);
+
+  PTA_Vertexf verts;
+  verts.push_back(Vertexf::rfu(left, 0.0, top));
+  verts.push_back(Vertexf::rfu(left, 0.0, bottom));
+  verts.push_back(Vertexf::rfu(right, 0.0, top));
+  verts.push_back(Vertexf::rfu(right, 0.0, bottom));
+
+  geom->set_num_prims(1);
+  geom->set_lengths(lengths);
+
+  geom->set_coords(verts, G_PER_VERTEX);
+
+  PTA_Colorf colors;
+  colors.push_back(Colorf(1.0, 1.0, 1.0, 1.0));
+  geom->set_colors(colors, G_OVERALL);
+
+  if (_has_uvs) {
+    PTA_TexCoordf uvs;
+    uvs.push_back(TexCoordf(_ll[0], _ur[1]));
+    uvs.push_back(TexCoordf(_ll[0], _ll[1]));
+    uvs.push_back(TexCoordf(_ur[0], _ur[1]));
+    uvs.push_back(TexCoordf(_ur[0], _ll[1]));
+    geom->set_texcoords(uvs, G_PER_VERTEX);
+  }
+  
+  return gnode.p();
+}

panda/src/grutil/cardMaker.h

@@ -0,0 +1,56 @@
+// Filename: cardMaker.h
+// Created by:  drose (06Jul01)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// [email protected] .
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef CARDMAKER_H
+#define CARDMAKER_H
+
+#include "pandabase.h"
+
+#include "luse.h"
+#include "pt_Node.h"
+
+////////////////////////////////////////////////////////////////////
+//       Class : CardMaker
+// Description : This class generates 2-d "cards", that is,
+//               rectangular polygons, particularly useful for showing
+//               textures etc. in the 2-d scene graph.
+////////////////////////////////////////////////////////////////////
+class CardMaker {
+PUBLISHED:
+  INLINE CardMaker();
+  INLINE ~CardMaker();
+
+  void reset();
+  INLINE void set_uv_range(const TexCoordf &ll, const TexCoordf &ur);
+  INLINE void set_has_uvs(bool flag);
+
+  INLINE void set_frame(float left, float right, float bottom, float top);
+  INLINE void set_frame(const LVecBase4f &frame);
+
+  PT_Node generate();
+
+private:
+  bool _has_uvs;
+  TexCoordf _ll, _ur;
+  LVecBase4f _frame;
+};
+
+#include "cardMaker.I"
+
+#endif
+