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// Transparent.hh for FbTk - Fluxbox Toolkit
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// Copyright (c) 2003 Henrik Kinnunen (fluxgen at fluxbox dot org)
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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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// 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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// 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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// $Id: Transparent.hh 3932 2005-04-10 18:18:14Z simonb $
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#ifndef FBTK_TRANSPARENT_HH
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#define FBTK_TRANSPARENT_HH
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/// renders to drawable together with an alpha mask
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Transparent(Drawable source, Drawable dest, unsigned char alpha, int screen_num);
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void setAlpha(unsigned char alpha);
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/// sets source drawable
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void setSource(Drawable src, int screen_num);
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/// sets destination drawable
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void setDest(Drawable dest, int screen_num);
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renders to dest from src with specified coordinates and size
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void render(int src_x, int src_y,
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int dest_x, int dest_y,
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unsigned int width, unsigned int height) const;
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unsigned char alpha() const { return m_alpha; }
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Drawable dest() const { return m_dest; }
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Drawable source() const { return m_source; }
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static bool haveComposite(bool for_real = false);
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static bool haveRender() { if (!s_init) init(); return s_render; }
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static void usePseudoTransparent(bool no_composite);
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void allocAlpha(unsigned char newval);
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unsigned long m_alpha_pic;
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unsigned long m_src_pic;
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unsigned long m_dest_pic;
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Drawable m_source, m_dest;
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unsigned char m_alpha;
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static bool s_render; ///< wheter we have RENDER support
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static bool s_composite; ///< wheter we have Composite support
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}; // end namespace FbTk
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#endif // FBTK_TRANSPARENT_HH
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src/FbTk/Transparent.hh
