зеркало из https://github.com/mozilla/gecko-dev.git
106 строки
3.3 KiB
C++
106 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
#ifndef nsStyleCoord_h___
|
|
#define nsStyleCoord_h___
|
|
|
|
#include "nscore.h"
|
|
#include "nsCoord.h"
|
|
class nsString;
|
|
|
|
enum nsStyleUnit {
|
|
eStyleUnit_Null = 0, // (no value) value is not specified
|
|
eStyleUnit_Normal = 1, // (no value)
|
|
eStyleUnit_Auto = 2, // (no value)
|
|
eStyleUnit_Inherit = 3, // (no value) value should be inherited
|
|
eStyleUnit_Percent = 10, // (float) 1.0 == 100%
|
|
eStyleUnit_Coord = 20, // (nscoord) value is twips
|
|
eStyleUnit_Integer = 30, // (int) value is simple integer
|
|
eStyleUnit_Proportional = 31, // (int) value has proportional meaning
|
|
eStyleUnit_Enumerated = 32 // (int) value has enumerated meaning
|
|
};
|
|
|
|
class nsStyleCoord {
|
|
public:
|
|
nsStyleCoord(nsStyleUnit aUnit = eStyleUnit_Null);
|
|
nsStyleCoord(nscoord aValue);
|
|
nsStyleCoord(PRInt32 aValue, nsStyleUnit aUnit);
|
|
nsStyleCoord(float aValue);
|
|
nsStyleCoord(const nsStyleCoord& aCopy);
|
|
|
|
nsStyleCoord& operator=(const nsStyleCoord& aCopy);
|
|
PRBool operator==(const nsStyleCoord& aOther) const;
|
|
|
|
nsStyleUnit GetUnit(void) const { return mUnit; }
|
|
nscoord GetCoordValue(void) const;
|
|
PRInt32 GetIntValue(void) const;
|
|
float GetPercentValue(void) const;
|
|
|
|
void Reset(void); // sets to null
|
|
void SetCoordValue(nscoord aValue);
|
|
void SetIntValue(PRInt32 aValue, nsStyleUnit aUnit);
|
|
void SetPercentValue(float aValue);
|
|
void SetNormalValue(void);
|
|
void SetAutoValue(void);
|
|
void SetInheritValue(void);
|
|
|
|
void AppendToString(nsString& aBuffer) const;
|
|
void ToString(nsString& aBuffer) const;
|
|
|
|
protected:
|
|
nsStyleUnit mUnit;
|
|
union {
|
|
PRInt32 mInt; // nscoord is a PRInt32 for now
|
|
float mFloat;
|
|
} mValue;
|
|
};
|
|
|
|
inline PRInt32 nsStyleCoord::GetCoordValue(void) const
|
|
{
|
|
NS_ASSERTION((mUnit == eStyleUnit_Coord), "not a coord value");
|
|
if (mUnit == eStyleUnit_Coord) {
|
|
return mValue.mInt;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
inline PRInt32 nsStyleCoord::GetIntValue(void) const
|
|
{
|
|
NS_ASSERTION((mUnit == eStyleUnit_Proportional) ||
|
|
(mUnit == eStyleUnit_Enumerated) ||
|
|
(mUnit == eStyleUnit_Integer), "not an int value");
|
|
if ((mUnit == eStyleUnit_Proportional) ||
|
|
(mUnit == eStyleUnit_Enumerated) ||
|
|
(mUnit == eStyleUnit_Integer)) {
|
|
return mValue.mInt;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
inline float nsStyleCoord::GetPercentValue(void) const
|
|
{
|
|
NS_ASSERTION(mUnit == eStyleUnit_Percent, "not a percent value");
|
|
if (mUnit == eStyleUnit_Percent) {
|
|
return mValue.mFloat;
|
|
}
|
|
return 0.0f;
|
|
}
|
|
|
|
|
|
|
|
#endif /* nsStyleCoord_h___ */
|