1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* -*- 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <QtVirtualDevice.hxx>
#include <QtGraphics.hxx>
#include <QtTools.hxx>
#include <QtGui/QImage>
QtVirtualDevice::QtVirtualDevice(double fScale)
: m_fScale(fScale)
{
}
SalGraphics* QtVirtualDevice::AcquireGraphics()
{
assert(m_pImage);
QtGraphics* pGraphics = new QtGraphics(m_pImage.get());
m_aGraphics.push_back(pGraphics);
return pGraphics;
}
void QtVirtualDevice::ReleaseGraphics(SalGraphics* pGraphics)
{
std::erase(m_aGraphics, dynamic_cast<QtGraphics*>(pGraphics));
delete pGraphics;
}
bool QtVirtualDevice::SetSize(tools::Long nNewDX, tools::Long nNewDY)
{
return SetSizeUsingBuffer(nNewDX, nNewDY, nullptr);
}
bool QtVirtualDevice::SetSizeUsingBuffer(tools::Long nNewDX, tools::Long nNewDY, sal_uInt8* pBuffer)
{
if (nNewDX == 0)
nNewDX = 1;
if (nNewDY == 0)
nNewDY = 1;
if (m_pImage && m_aFrameSize.width() == nNewDX && m_aFrameSize.height() == nNewDY)
return true;
m_aFrameSize = QSize(nNewDX, nNewDY);
nNewDX *= m_fScale;
nNewDY *= m_fScale;
if (pBuffer)
m_pImage.reset(new QImage(pBuffer, nNewDX, nNewDY, Qt_DefaultFormat32));
else
m_pImage.reset(new QImage(nNewDX, nNewDY, Qt_DefaultFormat32));
m_pImage->fill(Qt::transparent);
m_pImage->setDevicePixelRatio(m_fScale);
// update device in existing graphics
for (auto pQtGraph : m_aGraphics)
pQtGraph->ChangeQImage(m_pImage.get());
return true;
}
tools::Long QtVirtualDevice::GetWidth() const { return m_pImage ? m_aFrameSize.width() : 0; }
tools::Long QtVirtualDevice::GetHeight() const { return m_pImage ? m_aFrameSize.height() : 0; }
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
