/* * AspectFrame.h * * Copyright (C) 2008 Matthias Schiffer * * This program is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see . */ #ifndef ZOOMEDIT_GUI_ASPECTFRAME_H_ #define ZOOMEDIT_GUI_ASPECTFRAME_H_ #include #include namespace ZoomEdit { namespace Gui { class AspectFrame : public Gtk::AspectFrame { private: int width; void onSizeAllocate(Gtk::Allocation &allocation) { if(allocation.get_width() == width) return; width = allocation.get_width(); set_size_request(-1, width/property_ratio().get_value()); } public: AspectFrame(BaseObjectType *cobject, const Glib::RefPtr&) : Gtk::AspectFrame(cobject), width(-1) { signal_size_allocate().connect(sigc::mem_fun(this, &AspectFrame::onSizeAllocate)); } }; } } #endif /*ZOOMEDIT_GUI_ASPECTFRAME_H_*/