summaryrefslogtreecommitdiff
path: root/vcl/source/outdev/mask.cxx
blob: 6c52a544d394def76b7d894759947ff711ce09ec (plain)
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/* -*- 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 <cassert>

#include <vcl/gdimtf.hxx>
#include <vcl/metaact.hxx>
#include <vcl/outdev.hxx>
#include <vcl/virdev.hxx>
#include <vcl/window.hxx>

#include <salgdi.hxx>
#include <impbmp.hxx>
#include <outdata.hxx>

void OutputDevice::DrawMask( const Point& rDestPt,
                             const Bitmap& rBitmap, const Color& rMaskColor )
{
    assert(!is_double_buffered_window());

    const Size aSizePix( rBitmap.GetSizePixel() );
    DrawMask( rDestPt, PixelToLogic( aSizePix ), Point(), aSizePix, rBitmap, rMaskColor, MetaActionType::MASK );
}

void OutputDevice::DrawMask( const Point& rDestPt, const Size& rDestSize,
                             const Bitmap& rBitmap, const Color& rMaskColor )
{
    assert(!is_double_buffered_window());

    DrawMask( rDestPt, rDestSize, Point(), rBitmap.GetSizePixel(), rBitmap, rMaskColor, MetaActionType::MASKSCALE );
}

void OutputDevice::DrawMask( const Point& rDestPt, const Size& rDestSize,
                             const Point& rSrcPtPixel, const Size& rSrcSizePixel,
                             const Bitmap& rBitmap, const Color& rMaskColor,
                             const MetaActionType nAction )
{
    assert(!is_double_buffered_window());

    if( ImplIsRecordLayout() )
        return;

    if( RasterOp::Invert == meRasterOp )
    {
        DrawRect( tools::Rectangle( rDestPt, rDestSize ) );
        return;
    }

    if ( mpMetaFile )
    {
        switch( nAction )
        {
            case MetaActionType::MASK:
                mpMetaFile->AddAction( new MetaMaskAction( rDestPt,
                    rBitmap, rMaskColor ) );
            break;

            case MetaActionType::MASKSCALE:
                mpMetaFile->AddAction( new MetaMaskScaleAction( rDestPt,
                    rDestSize, rBitmap, rMaskColor ) );
            break;

            case MetaActionType::MASKSCALEPART:
                mpMetaFile->AddAction( new MetaMaskScalePartAction( rDestPt, rDestSize,
                    rSrcPtPixel, rSrcSizePixel, rBitmap, rMaskColor ) );
            break;

            default: break;
        }
    }

    if ( !IsDeviceOutputNecessary() )
        return;

    if ( !mpGraphics )
        if ( !AcquireGraphics() )
            return;

    if ( mbInitClipRegion )
        InitClipRegion();

    if ( mbOutputClipped )
        return;

    DrawDeviceMask( rBitmap, rMaskColor, rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel );

}

void OutputDevice::DrawDeviceMask( const Bitmap& rMask, const Color& rMaskColor,
                              const Point& rDestPt, const Size& rDestSize,
                              const Point& rSrcPtPixel, const Size& rSrcSizePixel )
{
    assert(!is_double_buffered_window());

    const std::shared_ptr<ImpBitmap>& xImpBmp = rMask.ImplGetImpBitmap();
    if (xImpBmp)
    {
        SalTwoRect aPosAry(rSrcPtPixel.X(), rSrcPtPixel.Y(), rSrcSizePixel.Width(), rSrcSizePixel.Height(),
                           ImplLogicXToDevicePixel(rDestPt.X()), ImplLogicYToDevicePixel(rDestPt.Y()),
                           ImplLogicWidthToDevicePixel(rDestSize.Width()),
                           ImplLogicHeightToDevicePixel(rDestSize.Height()));

        // we don't want to mirror via coordinates
        const BmpMirrorFlags nMirrFlags = AdjustTwoRect( aPosAry, xImpBmp->ImplGetSize() );

        // check if output is necessary
        if( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
        {

            if( nMirrFlags != BmpMirrorFlags::NONE )
            {
                Bitmap aTmp( rMask );
                aTmp.Mirror( nMirrFlags );
                mpGraphics->DrawMask( aPosAry, *aTmp.ImplGetImpBitmap()->ImplGetSalBitmap(),
                                      ImplColorToSal( rMaskColor ) , this);
            }
            else
                mpGraphics->DrawMask( aPosAry, *xImpBmp->ImplGetSalBitmap(),
                                      ImplColorToSal( rMaskColor ), this );

        }
    }

    // TODO: Use mask here
    if( mpAlphaVDev )
    {
        const Bitmap& rAlphaMask( rMask.CreateMask( rMaskColor ) );

        // #i25167# Restrict mask painting to _opaque_ areas
        // of the mask, otherwise we spoil areas where no
        // bitmap content was ever visible. Interestingly
        // enough, this can be achieved by taking the mask as
        // the transparency mask of itself
        mpAlphaVDev->DrawBitmapEx( rDestPt,
                                   rDestSize,
                                   rSrcPtPixel,
                                   rSrcSizePixel,
                                   BitmapEx( rAlphaMask, rMask ) );
    }
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */