42dc4f3ed8
The TileBuffer class now manages all the tiles. The tile rendering calls to LO core is also managed by this class. Change-Id: Ic667a93dcf1c097e0601c0496e8a083c4742e8cb
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_TILEBUFFER_HXX
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#define INCLUDED_TILEBUFFER_HXX
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#include <gdk/gdkkeysyms.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <vector>
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#define LOK_USE_UNSTABLE_API
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#include <LibreOfficeKit/LibreOfficeKit.h>
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#include <LibreOfficeKit/LibreOfficeKitEnums.h>
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#include <LibreOfficeKit/LibreOfficeKitGtk.h>
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/*
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This class represents a single tile in the tile buffer.
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TODO: Extend it to support features like double buffering
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*/
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class Tile
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{
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public:
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Tile() : valid(0) {}
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~Tile() {
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tile_release();
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}
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GdkPixbuf* tile_get_buffer();
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void tile_release();
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void tile_set_pixbuf(GdkPixbuf*);
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bool valid;
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private:
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GdkPixbuf *m_pBuffer;
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};
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/*
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TileBuffer is the buffer caching all the recently rendered tiles.
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The buffer is set to invalid when zoom factor changes.
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*/
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class TileBuffer
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{
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public:
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TileBuffer(LibreOfficeKitDocument *document,
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int tileSize,
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int rows,
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int columns)
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: m_pLOKDocument(document)
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, m_nTileSize(tileSize)
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, m_fZoomFactor(1)
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, m_nWidth(columns)
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, m_nHeight(rows)
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{
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m_aTiles.resize(rows * columns);
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}
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~TileBuffer() {}
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void tile_buffer_set_zoom(float zoomFactor, int rows, int columns);
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Tile& tile_buffer_get_tile(int x, int y);
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void tile_buffer_update();
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void tile_buffer_reset_all_tiles();
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private:
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LibreOfficeKitDocument *m_pLOKDocument;
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int m_nTileSize;
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float m_fZoomFactor;
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std::vector<Tile> m_aTiles;
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//TODO: Also set width and height when document size changes
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int m_nWidth;
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int m_nHeight;
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};
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#endif // INCLUDED_TILEBUFFER_HXX
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