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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/.
*/
#include "tilebuffer.hxx"
/* ------------------
Utility functions
------------------
*/
float pixelToTwip(float fInput, float zoom)
{
return (fInput / DPI / zoom) * 1440.0f;
}
float twipToPixel(float fInput, float zoom)
{
return fInput / 1440.0f * DPI * zoom;
}
/* ----------------------------
Tile class member functions
----------------------------
*/
cairo_surface_t* Tile::getBuffer()
{
return m_pBuffer;
}
void Tile::setSurface(cairo_surface_t *buffer)
{
if (m_pBuffer == buffer)
return;
if (m_pBuffer)
cairo_surface_destroy(m_pBuffer);
if (buffer != nullptr)
cairo_surface_reference(buffer);
m_pBuffer = buffer;
}
/* ----------------------------------
TileBuffer class member functions
----------------------------------
*/
void TileBuffer::resetAllTiles()
{
for (auto & tile : m_mTiles)
{
tile.second.valid = false;
}
}
void TileBuffer::setInvalid(int x, int y, float fZoom, GTask* task,
GThreadPool* lokThreadPool)
{
int index = x * m_nWidth + y;
GError* error = nullptr;
if (m_mTiles.find(index) != m_mTiles.end())
{
m_mTiles[index].valid = false;
LOEvent* pLOEvent = new LOEvent(LOK_PAINT_TILE);
pLOEvent->m_nPaintTileX = x;
pLOEvent->m_nPaintTileY = y;
pLOEvent->m_fPaintTileZoom = fZoom;
g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
g_thread_pool_push(lokThreadPool, g_object_ref(task), &error);
if (error != nullptr)
{
g_warning("Unable to call LOK_PAINT_TILE: %s", error->message);
g_clear_error(&error);
}
}
}
Tile& TileBuffer::getTile(int x, int y, GTask* task,
GThreadPool* lokThreadPool)
{
int index = x * m_nWidth + y;
GError* error = nullptr;
if (m_mTiles.find(index) != m_mTiles.end() && !m_mTiles[index].valid)
{
g_thread_pool_push(lokThreadPool, g_object_ref(task), &error);
if (error != nullptr)
{
g_warning("Unable to call LOK_PAINT_TILE: %s", error->message);
g_clear_error(&error);
}
return m_mTiles[index];
}
else if(m_mTiles.find(index) == m_mTiles.end())
{
g_thread_pool_push(lokThreadPool, g_object_ref(task), &error);
if (error != nullptr)
{
g_warning("Unable to call LOK_PAINT_TILE: %s", error->message);
g_clear_error(&error);
}
return m_DummyTile;
}
return m_mTiles[index];
}
void TileBuffer::setTile(int x, int y, cairo_surface_t *surface)
{
int index = x * m_nWidth + y;
m_mTiles[index].setSurface(surface);
m_mTiles[index].valid = true;
}
bool TileBuffer::hasValidTile(int x, int y)
{
int index = x * m_nWidth + y;
auto it = m_mTiles.find(index);
return (it != m_mTiles.end()) && it->second.valid;
}
void LOEvent::destroy(void* pMemory)
{
LOEvent* pLOEvent = static_cast<LOEvent*>(pMemory);
delete pLOEvent;
}
GQuark
LOKTileBufferErrorQuark()
{
return g_quark_from_static_string("lok-tilebuffer-error");
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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