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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_TILEBUFFER_HXX
#define INCLUDED_TILEBUFFER_HXX
#include <gdk/gdkkeysyms.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <vector>
#define LOK_USE_UNSTABLE_API
#include <LibreOfficeKit/LibreOfficeKit.h>
#include <LibreOfficeKit/LibreOfficeKitEnums.h>
#include <LibreOfficeKit/LibreOfficeKitGtk.h>
/*
This class represents a single tile in the tile buffer.
TODO: Extend it to support features like double buffering
*/
class Tile
{
public:
Tile() : valid(0) {}
~Tile() {
tile_release();
}
GdkPixbuf* tile_get_buffer();
void tile_release();
void tile_set_pixbuf(GdkPixbuf*);
bool valid;
private:
GdkPixbuf *m_pBuffer;
};
/*
TileBuffer is the buffer caching all the recently rendered tiles.
The buffer is set to invalid when zoom factor changes.
*/
class TileBuffer
{
public:
TileBuffer(LibreOfficeKitDocument *document,
int tileSize,
int rows,
int columns)
: m_pLOKDocument(document)
, m_nTileSize(tileSize)
, m_fZoomFactor(1)
, m_nWidth(columns)
, m_nHeight(rows)
{
m_aTiles.resize(rows * columns);
}
~TileBuffer() {}
void tile_buffer_set_zoom(float zoomFactor, int rows, int columns);
Tile& tile_buffer_get_tile(int x, int y);
void tile_buffer_update();
void tile_buffer_reset_all_tiles();
private:
LibreOfficeKitDocument *m_pLOKDocument;
int m_nTileSize;
float m_fZoomFactor;
std::vector<Tile> m_aTiles;
//TODO: Also set width and height when document size changes
int m_nWidth;
int m_nHeight;
};
#endif // INCLUDED_TILEBUFFER_HXX
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