Implemented cFont::CreateFont()

HISTORY

@@ -5246,3 +5246,5 @@ Video Disk Recorder Revision History
   for code and hints on how to do this).
 - If no fonts are installed, VDR now uses a dummy font that doesn't actually draw
   any text, and logs an error message.
+- The new function cFont::CreateFont() can be used by plugins to create and use
+  fonts of their own, independent of VDR's standard fonts.

font.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: font.c 1.18 2007/06/17 11:54:10 kls Exp $
+ * $Id: font.c 1.19 2007/06/17 12:13:49 kls Exp $
  */
 
 #include "font.h"
@@ -309,15 +309,11 @@ cFont *cFont::fonts[eDvbFontSize] = { NULL };
 
 void cFont::SetFont(eDvbFont Font, const char *Name, int CharHeight)
 {
-  cString fn = GetFontFileName(Name);
+  cFont *f = CreateFont(Name, CharHeight);
-  if (*fn) {
+  if (!f || !f->Height())
-     delete fonts[Font];
+     f = new cDummyFont;
-     fonts[Font] = new cFreetypeFont(fn, CharHeight);
+  delete fonts[Font];
-     }
+  fonts[Font] = f;
-  if (!fonts[Font] || !fonts[Font]->Height()) {
-     delete fonts[Font];
-     fonts[Font] = new cDummyFont;
-     }
 }
 
 const cFont *cFont::GetFont(eDvbFont Font)
@@ -336,6 +332,14 @@ const cFont *cFont::GetFont(eDvbFont Font)
   return fonts[Font];
 }
 
+cFont *cFont::CreateFont(const char *Name, int CharHeight)
+{
+  cString fn = GetFontFileName(Name);
+  if (*fn)
+     return new cFreetypeFont(fn, CharHeight);
+  return NULL;
+}
+
 bool cFont::GetAvailableFontNames(cStringList *FontNames, bool Monospaced)
 {
   if (!FontNames->Size()) {

font.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: font.h 1.18 2007/06/17 11:53:55 kls Exp $
+ * $Id: font.h 1.19 2007/06/17 12:11:31 kls Exp $
  */
 
 #ifndef __FONT_H
@@ -49,14 +49,21 @@ public:
           ///< Draws the given text into the Bitmap at position (x, y) with the given colors.
           ///< The text will not exceed the given Width (if > 0), and will end with a complete character.
   static void SetFont(eDvbFont Font, const char *Name, int CharHeight);
-          ///< Sets the given Font to use the font data from the file Name and make its characters
+          ///< Sets the given Font to use the font data according to Name (see CreateFont())
-          ///< CharHeight pixels high.
+          ///< and make its characters CharHeight pixels high.
   static const cFont *GetFont(eDvbFont Font);
           ///< Gets the given Font, which was previously set by a call to SetFont().
           ///< If no SetFont() call has been made, the font as defined in the setup is returned.
           ///< The caller must not use the returned font outside the scope in which
           ///< it was retrieved by the call to GetFont(), because a call to SetFont()
           ///< may delete an existing font.
+  static cFont *CreateFont(const char *Name, int CharHeight);
+          ///< Creates a new font object with the given Name and makes its characters
+          ///< CharHeight pixels high. Name is of the form "Family:Style", for instance
+          ///< "Verdana:Bold Italic" or "Times New Roman". See GetAvailableFontNames()
+          ///< for how to get a list of all available font names.
+          ///< If the requested font can't be created, NULL is returned.
+          ///< The caller must delete the font when it is no longer needed.
   static bool GetAvailableFontNames(cStringList *FontNames, bool Monospaced = false);
           ///< Queries the font configuration for a list of available font names,
           ///< which is returned in FontNames. If Monospaced is true, only