0026361: Visualization - move OpenGl_TextFormatter to Font_TextFormatter

[occt.git] / src / Font / Font_FTFont.cxx

diff --git a/src/Font/Font_FTFont.cxx b/src/Font/Font_FTFont.cxx
old mode 100644 (file)
new mode 100755 (executable)
index 5305da5..d05739e
--- a/src/Font/Font_FTFont.cxx
+++ b/src/Font/Font_FTFont.cxx
@@ -1,39 +1,36 @@
 // Created on: 2013-01-28
 // Created by: Kirill GAVRILOV
-// Copyright (c) 2013 OPEN CASCADE SAS
+// Copyright (c) 2013-2014 OPEN CASCADE SAS
 //
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
+// This file is part of Open CASCADE Technology software library.
 //
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
 //
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
 
 #include <Font_FTFont.hxx>
 #include <Font_FontMgr.hxx>
+#include <Font_TextFormatter.hxx>
+
 #include <TCollection_AsciiString.hxx>
 #include <TCollection_HAsciiString.hxx>
 
-IMPLEMENT_STANDARD_HANDLE (Font_FTFont, Standard_Transient)
-IMPLEMENT_STANDARD_RTTIEXT(Font_FTFont, Standard_Transient)
 
 // =======================================================================
 // function : Font_FTFont
 // purpose  :
 // =======================================================================
 Font_FTFont::Font_FTFont (const Handle(Font_FTLibrary)& theFTLib)
-: myFTLib (theFTLib),
-  myFTFace (NULL),
-  myPointSize (0),
-  myUChar (0)
+: myFTLib      (theFTLib),
+  myFTFace     (NULL),
+  myPointSize  (0U),
+  myLoadFlags  (FT_LOAD_NO_HINTING | FT_LOAD_TARGET_NORMAL),
+  myUChar      (0U)
 {
   if (myFTLib.IsNull())
   {
@@ -79,7 +76,7 @@ bool Font_FTFont::Init (const NCollection_String& theFontPath,
   myPointSize = thePointSize;
   if (!myFTLib->IsValid())
   {
-    std::cerr << "FreeType library is unavailable!\n";
+    //std::cerr << "FreeType library is unavailable!\n";
     Release();
     return false;
   }
@@ -135,7 +132,7 @@ bool Font_FTFont::loadGlyph (const Standard_Utf32Char theUChar)
   myGlyphImg.Clear();
   myUChar = 0;
   if (theUChar == 0
-   || FT_Load_Char (myFTFace, theUChar, FT_LOAD_TARGET_NORMAL) != 0
+   || FT_Load_Char (myFTFace, theUChar, myLoadFlags) != 0
    || myFTFace->glyph == NULL)
   {
     return false;
@@ -154,7 +151,7 @@ bool Font_FTFont::RenderGlyph (const Standard_Utf32Char theUChar)
   myGlyphImg.Clear();
   myUChar = 0;
   if (theUChar == 0
-   || FT_Load_Char (myFTFace, theUChar, FT_LOAD_RENDER | FT_LOAD_NO_HINTING | FT_LOAD_TARGET_NORMAL) != 0
+   || FT_Load_Char (myFTFace, theUChar, myLoadFlags | FT_LOAD_RENDER) != 0
    || myFTFace->glyph == NULL
    || myFTFace->glyph->format != FT_GLYPH_FORMAT_BITMAP)
   {
@@ -163,11 +160,11 @@ bool Font_FTFont::RenderGlyph (const Standard_Utf32Char theUChar)
 
   FT_Bitmap aBitmap = myFTFace->glyph->bitmap;
   if (aBitmap.pixel_mode != FT_PIXEL_MODE_GRAY
-   || aBitmap.buffer == NULL || aBitmap.width <= 0 || aBitmap.rows <= 0)
+   || aBitmap.buffer == NULL || aBitmap.width == 0 || aBitmap.rows == 0)
   {
     return false;
   }
-  if (!myGlyphImg.InitWrapper (Image_PixMap::ImgGray, aBitmap.buffer,
+  if (!myGlyphImg.InitWrapper (Image_PixMap::ImgAlpha, aBitmap.buffer,
                                aBitmap.width, aBitmap.rows, Abs (aBitmap.pitch)))
   {
     return false;
@@ -260,3 +257,25 @@ float Font_FTFont::AdvanceY (const Standard_Utf32Char theUCharNext)
   }
   return fromFTPoints<float> (myKernAdvance.y + myFTFace->glyph->advance.y);
 }
+
+// =======================================================================
+// function : BoundingBox
+// purpose  :
+// =======================================================================
+Font_FTFont::Rect Font_FTFont::BoundingBox (const NCollection_String&               theString,
+                                            const Graphic3d_HorizontalTextAlignment theAlignX,
+                                            const Graphic3d_VerticalTextAlignment   theAlignY)
+{
+  Font_TextFormatter aFormatter;
+  aFormatter.SetupAlignment (theAlignX, theAlignY);
+  aFormatter.Reset();
+
+  aFormatter.Append (theString, *this);
+  aFormatter.Format();
+
+  Rect aBndBox;
+
+  aFormatter.BndBox (aBndBox);
+
+  return aBndBox;
+}