58 lines
2.2 KiB
C++
58 lines
2.2 KiB
C++
// FontImp.cc for FbTk
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// Copyright (c) 2002-2004 Henrik Kinnunen (fluxgen at fluxbox dot org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#ifndef FBTK_FONTIMP_HH
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#define FBTK_FONTIMP_HH
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#include "Orientation.hh"
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#include "FbString.hh"
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#include <X11/Xlib.h>
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namespace FbTk {
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class FbDrawable;
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/**
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FontImp, second part of the bridge pattern for fonts
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pure interface class.
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@see Font
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*/
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class FontImp {
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public:
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virtual ~FontImp() { }
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virtual bool load(const std::string &name) = 0;
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virtual void drawText(const FbDrawable &w, int screen, GC gc, const char* text, size_t len, int x, int y, FbTk::Orientation orient) = 0;
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virtual unsigned int textWidth(const char* text, unsigned int len) const = 0;
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virtual bool validOrientation(FbTk::Orientation orient) { return orient == ROT0; }
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virtual int ascent() const = 0;
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virtual int descent() const = 0;
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virtual unsigned int height() const = 0;
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virtual bool loaded() const = 0;
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virtual void rotate(FbTk::Orientation angle) { } // by default, no rotate support
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virtual bool utf8() const { return false; };
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protected:
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FontImp() { }
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};
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} // end namespace FbTk
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#endif // FBTK_FONTIMP_HH
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