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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* -*- 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 <sal/config.h>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <sal/log.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/outdev.hxx>
#include "canvas.hxx"
using namespace ::com::sun::star;
namespace vclcanvas
{
namespace
{
class OutDevHolder : public OutDevProvider
{
public:
OutDevHolder(const OutDevHolder&) = delete;
const OutDevHolder& operator=(const OutDevHolder&) = delete;
explicit OutDevHolder( OutputDevice& rOutDev ) :
mrOutDev(rOutDev)
{}
private:
virtual OutputDevice& getOutDev() override { return mrOutDev; }
virtual const OutputDevice& getOutDev() const override { return mrOutDev; }
// TODO(Q2): Lifetime issue. This _only_ works reliably,
// if disposing the Canvas correctly disposes all
// entities which hold this pointer.
OutputDevice& mrOutDev;
};
}
Canvas::Canvas( const uno::Sequence< uno::Any >& aArguments,
const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :
maArguments(aArguments)
{
}
void Canvas::initialize()
{
// #i64742# Only perform initialization when not in probe mode
if( !maArguments.hasElements() )
return;
/* maArguments:
0: ptr to creating instance (Window or VirtualDevice)
1: current bounds of creating instance
2: bool, denoting always on top state for Window (always false for VirtualDevice)
3: XWindow for creating Window (or empty for VirtualDevice)
4: SystemGraphicsData as a streamed Any
*/
SolarMutexGuard aGuard;
SAL_INFO("canvas.vcl", "VCLCanvas::initialize called" );
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER,
"Canvas::initialize: wrong number of arguments, or wrong types" );
sal_Int64 nPtr = 0;
maArguments[0] >>= nPtr;
OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
if( !pOutDev )
throw lang::NoSupportException("Passed OutDev invalid!", nullptr);
OutDevProviderSharedPtr pOutdevProvider = std::make_shared<OutDevHolder>(*pOutDev);
// setup helper
maDeviceHelper.init( pOutdevProvider );
maCanvasHelper.init( *this,
pOutdevProvider,
true, // OutDev state preservation
false ); // no alpha on surface
maArguments.realloc(0);
}
Canvas::~Canvas()
{
SAL_INFO("canvas.vcl", "VCLCanvas destroyed" );
}
void Canvas::disposeThis()
{
SolarMutexGuard aGuard;
// forward to parent
CanvasBaseT::disposeThis();
}
OUString SAL_CALL Canvas::getServiceName( )
{
return "com.sun.star.rendering.Canvas.VCL";
}
bool Canvas::repaint( const GraphicObjectSharedPtr& rGrf,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
const ::Point& rPt,
const ::Size& rSz,
const GraphicAttr& rAttr ) const
{
SolarMutexGuard aGuard;
return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_comp_rendering_Canvas_VCL_get_implementation(
css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
{
auto p = new vclcanvas::Canvas(args, context);
cppu::acquire(p);
p->initialize();
return static_cast<cppu::OWeakObject*>(p);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
