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3.1 KiB
C++
Executable File

//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2007-2016 musikcube team
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * Neither the name of the author nor the names of other contributors may
// be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//////////////////////////////////////////////////////////////////////////////
#pragma once
#include "curses_config.h"
#include "IScrollAdapter.h"
#include <deque>
namespace cursespp {
class ScrollAdapterBase : public IScrollAdapter {
public:
typedef std::function<int64(
ScrollableWindow*,
size_t,
size_t,
EntryPtr)> ItemDecorator;
ScrollAdapterBase();
virtual ~ScrollAdapterBase();
virtual void SetDisplaySize(size_t width, size_t height);
virtual size_t GetLineCount();
virtual void DrawPage(
ScrollableWindow* window,
size_t index,
ScrollPosition *result = nullptr);
virtual size_t GetEntryCount() = 0;
virtual EntryPtr GetEntry(cursespp::ScrollableWindow* window, size_t index) = 0;
virtual void SetItemDecorator(ItemDecorator decorator) { this->decorator = decorator; }
protected:
void GetVisibleItems(
cursespp::ScrollableWindow* window,
size_t desired,
std::deque<EntryPtr>& target,
size_t& start);
virtual ItemDecorator GetItemDecorator() { return this->decorator; }
size_t GetWidth() { return this->width; }
size_t GetHeight() { return this->height; }
private:
size_t width, height;
ItemDecorator decorator;
};
}