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// MultLayers.hh for FbTk - fluxbox toolkit
// Copyright (c) 2003 Henrik Kinnunen (fluxgen at fluxbox dot org)
// and Simon Bowden (rathnor at users.sourceforge.net)
//
// 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.
#ifndef FBTK_MULTLAYERS_HH
#define FBTK_MULTLAYERS_HH
#include <vector>
#include <cstdlib> // size_t
namespace FbTk {
class LayerItem;
class Layer;
class MultLayers {
public:
explicit MultLayers(int numlayers);
~MultLayers();
LayerItem *getLowestItemAboveLayer(int layernum);
/// if there are none below, it will return null
LayerItem *getItemBelow(LayerItem &item);
LayerItem *getItemAbove(LayerItem &item);
void addToTop(LayerItem &item, int layernum);
void remove(LayerItem &item);
// raise/lower the whole layer
void raise(Layer &layer);
void lower(Layer &layer);
// raise/lower the item a whole layer, not just to top of current layer
void raiseLayer(LayerItem &item);
void lowerLayer(LayerItem &item);
void moveToLayer(LayerItem &item, int layernum);
int size();
Layer *getLayer(size_t num);
const Layer *getLayer(size_t num) const;
bool isUpdatable() const { return m_lock == 0; }
void lock() { ++m_lock; }
void unlock() { if (--m_lock == 0) restack(); }
private:
void restack();
std::vector<Layer *> m_layers;
int m_lock;
};
}
#endif // FBTK_MULTLAYERS_HH
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