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Diffstat (limited to 'khtml/misc/khtmllayout.h')
-rw-r--r-- | khtml/misc/khtmllayout.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/khtml/misc/khtmllayout.h b/khtml/misc/khtmllayout.h new file mode 100644 index 000000000..e4fb531a1 --- /dev/null +++ b/khtml/misc/khtmllayout.h @@ -0,0 +1,112 @@ +/* + This file is part of the KDE libraries + + Copyright (C) 1999 Lars Knoll (knoll@kde.org) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. + + This widget holds some useful definitions needed for layouting Elements +*/ +#ifndef HTML_LAYOUT_H +#define HTML_LAYOUT_H + + +/* + * this namespace contains definitions for various types needed for + * layouting. + */ +namespace khtml +{ + + const int UNDEFINED = -1; + + // alignment + enum VAlign { VNone=0, Bottom, VCenter, Top, Baseline }; + enum HAlign { HDefault, Left, HCenter, Right, HNone = 0 }; + + /* + * %multiLength and %Length + */ + enum LengthType { Variable = 0, Relative, Percent, Fixed, Static }; + struct Length + { + Length() : _length(0) {} + Length(LengthType t) { _length = 0; l.type = t; } + Length(int v, LengthType t, bool q=false) + { _length= 0; l.value = v; l.type = t; l.quirk = q; } + bool operator==(const Length& o) const + { return _length == o._length; } + bool operator!=(const Length& o) const + { return _length != o._length; } + void setValue(LengthType t, int v) { + _length = 0; l.value = v; l.type = t; l.quirk = false; + } + /* + * works only for Fixed and Percent, returns -1 otherwise + */ + int width(int maxWidth) const + { + switch(l.type) + { + case Fixed: + return l.value; + case Percent: + return maxWidth*l.value/100; + case Variable: + return maxWidth; + default: + return -1; + } + } + /* + * returns the minimum width value which could work... + */ + int minWidth(int maxWidth) const + { + switch(l.type) + { + case Fixed: + return l.value; + case Percent: + return maxWidth*l.value/100; + case Variable: + default: + return 0; + } + } + bool isVariable() const { return ((LengthType) l.type == Variable); } + bool isRelative() const { return ((LengthType) l.type == Relative); } + bool isPercent() const { return ((LengthType ) l.type == Percent); } + bool isFixed() const { return ((LengthType) l.type == Fixed); } + bool isStatic() const { return ((LengthType) l.type == Static); } + bool isQuirk() const { return l.quirk; } + + int value() const { return l.value; } + LengthType type() const { return (LengthType) l.type; } + + union { + struct { + signed int value : 28; + unsigned type : 3; + bool quirk : 1; + } l; + Q_UINT32 _length; + }; + }; + +} + +#endif |