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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 : #ifndef INCLUDED_STARMATH_INC_RECT_HXX
21 : #define INCLUDED_STARMATH_INC_RECT_HXX
22 :
23 : #include <new>
24 :
25 : #include <rtl/ustring.hxx>
26 : #include <sal/log.hxx>
27 : #include <tools/gen.hxx>
28 : #include <vcl/outdev.hxx>
29 : #include <vcl/metric.hxx>
30 :
31 : #include "format.hxx"
32 :
33 :
34 : bool SmGetGlyphBoundRect(const OutputDevice &rDev,
35 : const OUString &rText, Rectangle &rRect);
36 :
37 : bool SmIsMathAlpha(const OUString &rText);
38 :
39 :
40 9600 : inline long SmFromTo(long nFrom, long nTo, double fRelDist)
41 : {
42 9600 : return nFrom + (long) (fRelDist * (nTo - nFrom));
43 : }
44 :
45 :
46 :
47 : // SmRect
48 : // ... (to be done)
49 : // This Implementation assumes that the x-axis points to the right and the
50 : // y-axis to the bottom.
51 : // Note: however, italic spaces can be negative!
52 :
53 :
54 : // possible positions and alignments for the 'AlignTo' function
55 : enum RectPos
56 : // (RP_LEFT : align the current object to the left of the argument, ...)
57 : { RP_LEFT, RP_RIGHT,
58 : RP_TOP, RP_BOTTOM,
59 : RP_ATTRIBUT
60 : };
61 : enum RectHorAlign
62 : { RHA_LEFT, RHA_CENTER, RHA_RIGHT
63 : };
64 : enum RectVerAlign
65 : { RVA_TOP, RVA_MID, RVA_BOTTOM, RVA_BASELINE, RVA_CENTERY,
66 : RVA_ATTRIBUT_HI, RVA_ATTRIBUT_MID, RVA_ATTRIBUT_LO
67 : };
68 :
69 : // different methods of copying baselines and mid's in 'ExtendBy' function
70 : enum RectCopyMBL
71 : { RCP_THIS, // keep baseline of current object even if it has none
72 : RCP_ARG, // as above but for the argument
73 : RCP_NONE, // result will have no baseline
74 : RCP_XOR // if current object has a baseline keep it else copy
75 : // the arguments baseline (even if it has none)
76 : };
77 :
78 :
79 : class SmRect
80 : {
81 : Point aTopLeft;
82 : Size aSize;
83 : long nBaseline,
84 : nAlignT,
85 : nAlignM,
86 : nAlignB,
87 : nGlyphTop,
88 : nGlyphBottom,
89 : nItalicLeftSpace,
90 : nItalicRightSpace,
91 : nLoAttrFence,
92 : nHiAttrFence;
93 : sal_uInt16 nBorderWidth;
94 : bool bHasBaseline,
95 : bHasAlignInfo;
96 :
97 : protected:
98 : void BuildRect (const OutputDevice &rDev, const SmFormat *pFormat,
99 : const OUString &rText, sal_uInt16 nBorderWidth);
100 : void Init(const OutputDevice &rDev, const SmFormat *pFormat,
101 : const OUString &rText, sal_uInt16 nBorderWidth);
102 :
103 757 : void ClearBaseline() { bHasBaseline = false; };
104 : inline void CopyMBL(const SmRect& rRect);
105 : void CopyAlignInfo(const SmRect& rRect);
106 :
107 : SmRect & Union(const SmRect &rRect);
108 :
109 : public:
110 : SmRect();
111 : SmRect(const OutputDevice &rDev, const SmFormat *pFormat,
112 : const OUString &rText, long nBorderWidth);
113 : SmRect(long nWidth, long nHeight);
114 : SmRect(const SmRect &rRect);
115 :
116 :
117 884 : sal_uInt16 GetBorderWidth() const { return nBorderWidth; }
118 :
119 : void SetItalicSpaces(long nLeftSpace, long nRightSpace);
120 :
121 223 : void SetWidth(sal_uLong nWidth) { aSize.Width() = nWidth; }
122 : void SetHeight(sal_uLong nHeight) { aSize.Height() = nHeight; }
123 :
124 : void SetLeft(long nLeft);
125 : void SetRight(long nRight);
126 : void SetBottom(long nBottom);
127 : void SetTop(long nTop);
128 :
129 462638 : const Point & GetTopLeft() const { return aTopLeft; }
130 :
131 166636 : long GetTop() const { return GetTopLeft().Y(); }
132 148801 : long GetLeft() const { return GetTopLeft().X(); }
133 67567 : long GetBottom() const { return GetTop() + GetHeight() - 1; }
134 75688 : long GetRight() const { return GetLeft() + GetWidth() - 1; }
135 : long GetCenterX() const { return (GetLeft() + GetRight()) / 2L; }
136 2109 : long GetCenterY() const { return (GetTop() + GetBottom()) / 2L; }
137 136742 : long GetWidth() const { return GetSize().Width(); }
138 89361 : long GetHeight() const { return GetSize().Height(); }
139 :
140 32627 : long GetItalicLeftSpace() const { return nItalicLeftSpace; }
141 31039 : long GetItalicRightSpace() const { return nItalicRightSpace; }
142 :
143 : void SetHiAttrFence(long nVal) { nHiAttrFence = nVal; }
144 : void SetLoAttrFence(long nVal) { nLoAttrFence = nVal; }
145 16450 : long GetHiAttrFence() const { return nHiAttrFence; }
146 16250 : long GetLoAttrFence() const { return nLoAttrFence; }
147 :
148 23448 : long GetItalicLeft() const { return GetLeft() - GetItalicLeftSpace(); }
149 4566 : long GetItalicCenterX() const { return (GetItalicLeft() + GetItalicRight()) / 2; }
150 26189 : long GetItalicRight() const { return GetRight() + GetItalicRightSpace(); }
151 3942 : long GetItalicWidth() const { return GetWidth() + GetItalicLeftSpace() + GetItalicRightSpace(); }
152 :
153 12876 : bool HasBaseline() const { return bHasBaseline; }
154 : inline long GetBaseline() const;
155 37174 : long GetBaselineOffset() const { return GetBaseline() - GetTop(); }
156 :
157 : void SetAlignTop(long nVal) { nAlignT = nVal; }
158 :
159 19149 : long GetAlignT() const { return nAlignT; }
160 2759 : long GetAlignM() const { return nAlignM; }
161 27643 : long GetAlignB() const { return nAlignB; }
162 :
163 : void SetAlignT(long nVal) { nAlignT = nVal; }
164 :
165 : const Point GetCenter() const
166 : { return Point(GetCenterX(), GetCenterY()); }
167 :
168 227476 : const Size & GetSize() const { return aSize; }
169 :
170 1459 : const Size GetItalicSize() const
171 1459 : { return Size(GetItalicWidth(), GetHeight()); }
172 :
173 : void Move (const Point &rPosition);
174 463 : void MoveTo(const Point &rPosition) { Move(rPosition - GetTopLeft()); }
175 :
176 16383 : bool IsEmpty() const
177 : {
178 16383 : return GetWidth() == 0 || GetHeight() == 0;
179 : }
180 :
181 17627 : bool HasAlignInfo() const { return bHasAlignInfo; }
182 :
183 : const Point AlignTo(const SmRect &rRect, RectPos ePos,
184 : RectHorAlign eHor, RectVerAlign eVer) const;
185 :
186 : SmRect & ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode);
187 : SmRect & ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
188 : long nNewAlignM);
189 : SmRect & ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
190 : bool bKeepVerAlignParams);
191 :
192 : long OrientedDist(const Point &rPoint) const;
193 : bool IsInsideRect(const Point &rPoint) const;
194 : bool IsInsideItalicRect(const Point &rPoint) const;
195 :
196 : inline SmRect & operator = (const SmRect &rRect);
197 :
198 : inline Rectangle AsRectangle() const;
199 : SmRect AsGlyphRect() const;
200 : };
201 :
202 :
203 8458 : inline void SmRect::SetItalicSpaces(long nLeftSpace, long nRightSpace)
204 : // set extra spacing to the left and right for (italic)
205 : // letters/text
206 : {
207 8458 : nItalicLeftSpace = nLeftSpace;
208 8458 : nItalicRightSpace = nRightSpace;
209 8458 : }
210 :
211 :
212 1238 : inline void SmRect::CopyMBL(const SmRect &rRect)
213 : // copy AlignM baseline and value of 'rRect'
214 : {
215 1238 : nBaseline = rRect.nBaseline;
216 1238 : bHasBaseline = rRect.bHasBaseline;
217 1238 : nAlignM = rRect.nAlignM;
218 1238 : }
219 :
220 :
221 45633 : inline long SmRect::GetBaseline() const
222 : {
223 : SAL_WARN_IF( !HasBaseline(), "starmath", "Baseline does not exist" );
224 45633 : return nBaseline;
225 : }
226 :
227 :
228 14696 : inline SmRect & SmRect::operator = (const SmRect &rRect)
229 : {
230 14696 : new (this) SmRect(rRect); // placement new
231 14696 : return *this;
232 : }
233 :
234 :
235 1451 : inline Rectangle SmRect::AsRectangle() const
236 : {
237 1451 : return Rectangle(Point(GetItalicLeft(), GetTop()), GetItalicSize());
238 : }
239 :
240 : #endif
241 :
242 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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