RE/RE_OGLFont.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *      Joe Drew
 *      Side Effects Software Inc
 *      123 Front Street West, Suite 1401
 *      Toronto, Ontario
 *      Canada   M5J 2M2
 *      416-504-9876
 *
 * NAME:        RE_OGLFont.h (RE Library, C++)
 *
 * COMMENTS:
 */

#ifndef __RE_OGLFont__
#define __RE_OGLFont__

#include "RE_API.h"

#include "RE_Font.h"

class RE_OGLFontCache;
class RE_Render;

class RE_API RE_OGLFont : public RE_Font
{
public:
     RE_OGLFont(const char *name, float size, RE_OGLFontCache *cache);

    ~RE_OGLFont();

    /// Get whether this font has deferred its creation of display lists.
    /// The cache can, for example, call loadCache at a more convenient
    /// time when this is true.
    bool                 getListsRequested()
                         { return myListsRequested; }

    /// Load this font and generate its display lists. This should be called
    /// only when getListsRequested returns false.
    void                 loadCache(RE_Render *r);

protected: // methods

    /// Generate display lists for this font. Override this in subclasses,
    /// and set myListsCreated to true when they have been.
    virtual void         genDisplayLists(RE_Render *r) = 0;

protected: // variables

    // The font cache that created us.
    RE_OGLFontCache     *myFontCache;

    // Whether myDisplayListBase is valid - that is, whether we've successfully
    // created our display lists.
    bool                 myListsCreated;

    // The base number for our display lists. Used in glCallLists.
    unsigned int         myDisplayListBase;

    // The following flag is set when the display lists for this font needed
    // to be loaded but were unable to.
    bool                 myListsRequested;
};
#endif

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