d11aa42ace
WindowMenuAccessor returned strange alpha values if compiled with 'g++ -Os'; unholy black magic happens if template<int> faces functions returning only 'usigned char'.
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
// WindowMenuAccessor.hh
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// Copyright (c) 2008 Fluxbox Team (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 WINDOW_MENU_ACCESSOR_HH
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#define WINDOW_MENU_ACCESSOR_HH
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#include "FbTk/Accessor.hh"
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#include "FbMenu.hh"
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/// accesses values in current window
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template <typename Ret, typename Def=Ret>
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class WindowMenuAccessor: public FbTk::Accessor<Ret> {
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public:
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typedef Ret (FluxboxWindow:: *Getter)() const;
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typedef void (FluxboxWindow:: *Setter)(Ret);
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WindowMenuAccessor(Getter g, Setter s, Def def):
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m_getter(g), m_setter(s), m_def(def) { }
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operator Ret() const {
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FluxboxWindow *fbwin = FbMenu::window();
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if (fbwin)
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return (Ret)(fbwin->*m_getter)();
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return m_def;
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}
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FbTk::Accessor<Ret> &operator =(const Ret &val) {
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FluxboxWindow *fbwin = FbMenu::window();
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if (fbwin)
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(fbwin->*m_setter)(val);
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return *this;
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}
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private:
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Getter m_getter;
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Setter m_setter;
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Def m_def;
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};
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/// same as above but only reads
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template <typename Ret, typename Def=Ret>
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class ConstWindowMenuAccessor: public FbTk::Accessor<Ret> {
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public:
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typedef Ret (FluxboxWindow:: *Getter)() const;
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ConstWindowMenuAccessor(Getter g, Def def):
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m_getter(g), m_def(def) { }
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operator Ret() const {
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FluxboxWindow *fbwin = FbMenu::window();
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return fbwin ? (fbwin->*m_getter)() : m_def;
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}
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FbTk::Accessor<Ret> &operator =(const Ret &val) { return *this; }
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private:
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Getter m_getter;
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Def m_def;
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};
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#endif // WINDOW_MENU_ACCESSOR_HH
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