1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include "SlsFramePainter.hxx"
21 #include <vcl/outdev.hxx>
22 #include <osl/diagnose.h>
23
24 namespace sd::slidesorter::view {
25
FramePainter(const BitmapEx & rShadowBitmap)26 FramePainter::FramePainter (const BitmapEx& rShadowBitmap)
27 : maTopLeft(rShadowBitmap,-1,-1),
28 maTop(rShadowBitmap,0,-1),
29 maTopRight(rShadowBitmap,+1,-1),
30 maLeft(rShadowBitmap,-1,0),
31 maRight(rShadowBitmap,+1,0),
32 maBottomLeft(rShadowBitmap,-1,+1),
33 maBottom(rShadowBitmap,0,+1),
34 maBottomRight(rShadowBitmap,+1,+1),
35 maCenter(rShadowBitmap,0,0),
36 mbIsValid(false)
37 {
38 if (rShadowBitmap.GetSizePixel().Width() == rShadowBitmap.GetSizePixel().Height()
39 && (rShadowBitmap.GetSizePixel().Width()-1)%2 == 0
40 && ((rShadowBitmap.GetSizePixel().Width()-1)/2)%2 == 1)
41 {
42 mbIsValid = true;
43 }
44 else
45 {
46 OSL_ASSERT(rShadowBitmap.GetSizePixel().Width() == rShadowBitmap.GetSizePixel().Height());
47 OSL_ASSERT((rShadowBitmap.GetSizePixel().Width()-1)%2 == 0);
48 OSL_ASSERT(((rShadowBitmap.GetSizePixel().Width()-1)/2)%2 == 1);
49 }
50 }
51
~FramePainter()52 FramePainter::~FramePainter()
53 {
54 }
55
PaintFrame(OutputDevice & rDevice,const::tools::Rectangle & rBox) const56 void FramePainter::PaintFrame (
57 OutputDevice& rDevice,
58 const ::tools::Rectangle& rBox) const
59 {
60 if ( ! mbIsValid)
61 return;
62
63 // Paint the shadow.
64 maTopLeft.PaintCorner(rDevice, rBox.TopLeft());
65 maTopRight.PaintCorner(rDevice, rBox.TopRight());
66 maBottomLeft.PaintCorner(rDevice, rBox.BottomLeft());
67 maBottomRight.PaintCorner(rDevice, rBox.BottomRight());
68 maLeft.PaintSide(rDevice, rBox.TopLeft(), rBox.BottomLeft(), maTopLeft, maBottomLeft);
69 maRight.PaintSide(rDevice, rBox.TopRight(), rBox.BottomRight(), maTopRight, maBottomRight);
70 maTop.PaintSide(rDevice, rBox.TopLeft(), rBox.TopRight(), maTopLeft, maTopRight);
71 maBottom.PaintSide(rDevice, rBox.BottomLeft(), rBox.BottomRight(), maBottomLeft, maBottomRight);
72 maCenter.PaintCenter(rDevice,rBox);
73 }
74
AdaptColor(const Color aNewColor)75 void FramePainter::AdaptColor (
76 const Color aNewColor)
77 {
78 // Get the source color.
79 if (maCenter.maBitmap.IsEmpty())
80 return;
81 const Color aSourceColor = maCenter.maBitmap.GetPixelColor(0,0);
82
83 // Erase the center bitmap.
84 maCenter.maBitmap.SetEmpty();
85
86 // Replace the color in all bitmaps.
87 maTopLeft.maBitmap.Replace(aSourceColor, aNewColor);
88 maTop.maBitmap.Replace(aSourceColor, aNewColor);
89 maTopRight.maBitmap.Replace(aSourceColor, aNewColor);
90 maLeft.maBitmap.Replace(aSourceColor, aNewColor);
91 maCenter.maBitmap.Replace(aSourceColor, aNewColor);
92 maRight.maBitmap.Replace(aSourceColor, aNewColor);
93 maBottomLeft.maBitmap.Replace(aSourceColor, aNewColor);
94 maBottom.maBitmap.Replace(aSourceColor, aNewColor);
95 maBottomRight.maBitmap.Replace(aSourceColor, aNewColor);
96 }
97
98 //===== FramePainter::OffsetBitmap ============================================
99
OffsetBitmap(const BitmapEx & rBitmap,const sal_Int32 nHorizontalPosition,const sal_Int32 nVerticalPosition)100 FramePainter::OffsetBitmap::OffsetBitmap (
101 const BitmapEx& rBitmap,
102 const sal_Int32 nHorizontalPosition,
103 const sal_Int32 nVerticalPosition)
104 : maBitmap(),
105 maOffset()
106 {
107 OSL_ASSERT(nHorizontalPosition>=-1 && nHorizontalPosition<=+1);
108 OSL_ASSERT(nVerticalPosition>=-1 && nVerticalPosition<=+1);
109
110 const sal_Int32 nS (1);
111 const sal_Int32 nC (::std::max<sal_Int32>(0,(rBitmap.GetSizePixel().Width()-nS)/2));
112 const sal_Int32 nO (nC/2);
113
114 const Point aOrigin(
115 nHorizontalPosition<0 ? 0 : (nHorizontalPosition == 0 ? nC : nC+nS),
116 nVerticalPosition<0 ? 0 : (nVerticalPosition == 0 ? nC : nC+nS));
117 const Size aSize(
118 nHorizontalPosition==0 ? nS : nC,
119 nVerticalPosition==0 ? nS : nC);
120 maBitmap = BitmapEx(rBitmap, aOrigin, aSize);
121 if (maBitmap.IsEmpty())
122 return;
123 maOffset = Point(
124 nHorizontalPosition<0 ? -nO : nHorizontalPosition>0 ? -nO : 0,
125 nVerticalPosition<0 ? -nO : nVerticalPosition>0 ? -nO : 0);
126
127 // Enlarge the side bitmaps so that painting the frame requires less
128 // paint calls.
129 const sal_Int32 nSideBitmapSize (64);
130 if (nHorizontalPosition == 0 && nVerticalPosition == 0)
131 {
132 maBitmap.Scale(Size(nSideBitmapSize,nSideBitmapSize));
133 }
134 else if (nHorizontalPosition == 0)
135 {
136 maBitmap.Scale(Size(nSideBitmapSize,aSize.Height()));
137 }
138 else if (nVerticalPosition == 0)
139 {
140 maBitmap.Scale(Size(maBitmap.GetSizePixel().Width(), nSideBitmapSize));
141 }
142 }
143
PaintCorner(OutputDevice & rDevice,const Point & rAnchor) const144 void FramePainter::OffsetBitmap::PaintCorner (
145 OutputDevice& rDevice,
146 const Point& rAnchor) const
147 {
148 if ( ! maBitmap.IsEmpty())
149 rDevice.DrawBitmapEx(rAnchor+maOffset, maBitmap);
150 }
151
PaintSide(OutputDevice & rDevice,const Point & rAnchor1,const Point & rAnchor2,const OffsetBitmap & rCornerBitmap1,const OffsetBitmap & rCornerBitmap2) const152 void FramePainter::OffsetBitmap::PaintSide (
153 OutputDevice& rDevice,
154 const Point& rAnchor1,
155 const Point& rAnchor2,
156 const OffsetBitmap& rCornerBitmap1,
157 const OffsetBitmap& rCornerBitmap2) const
158 {
159 if (maBitmap.IsEmpty())
160 return;
161
162 const Size aBitmapSize (maBitmap.GetSizePixel());
163 if (rAnchor1.Y() == rAnchor2.Y())
164 {
165 // Side is horizontal.
166 const sal_Int32 nY (rAnchor1.Y() + maOffset.Y());
167 const sal_Int32 nLeft (
168 rAnchor1.X()
169 + rCornerBitmap1.maBitmap.GetSizePixel().Width()
170 + rCornerBitmap1.maOffset.X());
171 const sal_Int32 nRight (
172 rAnchor2.X()
173 + rCornerBitmap2.maOffset.X()
174 - 1);
175 for (sal_Int32 nX=nLeft; nX<=nRight; nX+=aBitmapSize.Width())
176 {
177 rDevice.DrawBitmapEx(
178 Point(nX,nY),
179 Size(std::min(aBitmapSize.Width(),static_cast<::tools::Long>(nRight-nX+1)),aBitmapSize.Height()),
180 maBitmap);
181 }
182 }
183 else if (rAnchor1.X() == rAnchor2.X())
184 {
185 // Side is vertical.
186 const sal_Int32 nX (rAnchor1.X() + maOffset.X());
187 const sal_Int32 nTop (
188 rAnchor1.Y()
189 + rCornerBitmap1.maBitmap.GetSizePixel().Height()
190 + rCornerBitmap1.maOffset.Y());
191 const sal_Int32 nBottom (
192 rAnchor2.Y()
193 + rCornerBitmap2.maOffset.Y()
194 - 1);
195 for (sal_Int32 nY=nTop; nY<=nBottom; nY+=aBitmapSize.Height())
196 {
197 rDevice.DrawBitmapEx(
198 Point(nX,nY),
199 Size(aBitmapSize.Width(), std::min(aBitmapSize.Height(), static_cast<::tools::Long>(nBottom-nY+1))),
200 maBitmap);
201 }
202 }
203 else
204 {
205 // Diagonal sides indicates an error.
206 OSL_ASSERT(false);
207 }
208 }
209
PaintCenter(OutputDevice & rDevice,const::tools::Rectangle & rBox) const210 void FramePainter::OffsetBitmap::PaintCenter (
211 OutputDevice& rDevice,
212 const ::tools::Rectangle& rBox) const
213 {
214 const Size aBitmapSize (maBitmap.GetSizePixel());
215 for (::tools::Long nY=rBox.Top(); nY<=rBox.Bottom(); nY+=aBitmapSize.Height())
216 for (::tools::Long nX=rBox.Left(); nX<=rBox.Right(); nX+=aBitmapSize.Width())
217 rDevice.DrawBitmapEx(
218 Point(nX,nY),
219 Size(
220 ::std::min(aBitmapSize.Width(), rBox.Right()-nX+1),
221 std::min(aBitmapSize.Height(), rBox.Bottom()-nY+1)),
222 maBitmap);
223 }
224
225 } // end of namespace sd::slidesorter::view
226
227 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
228