61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/* -----------------------------------------------------------------------------
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GSFramework
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Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
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----------------------------------------------------------------------------- */
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#ifndef __FONTINTERFACE__
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#define __FONTINTERFACE__
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#include "color/color.h"
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#include "geometry/rect.h"
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#include "memory/nshared_ptr.h"
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#include "nstring/nstring.h"
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namespace GS {
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class Picture;
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/*!
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@short Font interface.
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@author Emmanuel Julien (ejulien@owloh.com)
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*/
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struct IFont : public SharedObject
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{
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/// Return the font name.
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virtual const char *GetName() const = 0;
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/// Return the bounding rect for a given string.
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virtual iRect GetTextBoundRect(const char *) const = 0;
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/// Set font size in pixels.
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virtual bool SetPixelSize(int) = 0;
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/// Get font height in pixels.
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virtual int GetHeight() const = 0;
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/// Get font current glyph advance.
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virtual int GetAdvance() const = 0;
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/// Return true if the font supports kerning.
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virtual bool HasKerning() const = 0;
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/// Return the kerning for a glyph codepoint.
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virtual int GetKerning(uint previous_codepoint, uint codepoint) const = 0;
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/// Load the glyph corresponding to a UTF-32 codepoint.
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virtual bool LoadGlyph(uint codepoint, bool for_render) = 0;
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/// Render currently loaded glyph to a picture.
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virtual bool RenderCurrentGlyph(Picture &picture, const iPoint &position, const iRect &clip, const Color &color = Color::White) = 0;
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/// Set a fallback font to query in case a glyph cannot be found in this font.
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virtual void SetFallback(IFont *) {}
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virtual ~IFont() {}
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};
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typedef SharedPtr <IFont> sIFont;
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} // GS
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#endif // __FONTINTERFACE__
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