/usr/include/libview/baseBGBox.hh is in libview-dev 0.6.6-2.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2005 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *************************************************************************/
/*
* baseBGBox.hh --
*
* An HBox that draws its background using the base colour for
* the current state. How exciting.
*
* Now, because of the tortuous journey to get here, I'm including
* the summary of why this class works the way it does:
*
* One officially sanctioned use of EventBoxes is to set a background
* colour for a child widget. However, many themes ignore, abuse and
* otherwise harrass event boxes and prevent them from fullfilling this
* basic task.
*
* Examples:
* 1) crux and smokey-blue deliberately force the appearance of the
* event box to be identical with the parent widget.
* 2) gtk-qt-engine abuses the symbolic colours, so they all look
* the same - at least in an event box.
*
* So, what's the solution? Don't use an event box. Based on my
* reading of the gtk-qt-engine code, I worked out that if you
* instead take a non-window widget and do a draw_rectangle()
* inside its allocation, then the colour wouldn't get mangled.
* The added bonus is that because we no-longer inherit from
* EventBox, crux and smokey-blue will not override our rendering
* style.
*/
#ifndef LIBVIEW_BASEBGBOX_HH
#define LIBVIEW_BASEBGBOX_HH
#include <gtkmm/box.h>
namespace view {
class BaseBGBox
: public Gtk::HBox
{
public:
enum Palette { BASE, BG, FG };
BaseBGBox(Palette = BASE);
protected:
bool on_expose_event(GdkEventExpose *event);
private:
Palette mPalette;
};
} // namespace view
#endif // LIBVIEW_BASEBGBOX_HH
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