mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-07-06 17:30:12 +02:00
259 lines
6.7 KiB
C++
259 lines
6.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsTransform2D_h___
|
|
#define nsTransform2D_h___
|
|
|
|
#include "gfxCore.h"
|
|
#include "nsCoord.h"
|
|
#include "nsUnitConversion.h"
|
|
|
|
#define MG_2DIDENTITY 0
|
|
#define MG_2DTRANSLATION 1
|
|
#define MG_2DSCALE 2
|
|
#define MG_2DGENERAL 4
|
|
|
|
class NS_GFX nsTransform2D
|
|
{
|
|
private:
|
|
//accelerators
|
|
|
|
float m00, m01, m10, m11, m20, m21;
|
|
PRUint16 type;
|
|
|
|
public:
|
|
//constructors
|
|
|
|
nsTransform2D(void) { SetToIdentity(); }
|
|
nsTransform2D(nsTransform2D *aTransform2D) { SetMatrix(aTransform2D); }
|
|
|
|
//destructor
|
|
|
|
~nsTransform2D(void) { }
|
|
|
|
/**
|
|
* get the type of this transform
|
|
*
|
|
* @param
|
|
* @return type from above set
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
PRUint16 GetType(void) { return type; }
|
|
|
|
/**
|
|
* set this transform to identity
|
|
*
|
|
* @param
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void SetToIdentity(void) { m01 = m10 = m20 = m21 = 0.0f; m00 = m11 = 1.0f; type = MG_2DIDENTITY; }
|
|
|
|
/**
|
|
* set this transform to a scale
|
|
*
|
|
* @param sx, x scale
|
|
* @param sy, y scale
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void SetToScale(float sx, float sy);
|
|
|
|
/**
|
|
* set this transform to a translation
|
|
*
|
|
* @param tx, x translation
|
|
* @param ty, y translation
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void SetToTranslate(float tx, float ty);
|
|
|
|
/**
|
|
* get the translation portion of this transform
|
|
*
|
|
* @param pt, Point to return translation values in
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void GetTranslation(float *ptX, float *ptY) { *ptX = m20; *ptY = m21; }
|
|
void GetTranslationCoord(nscoord *ptX, nscoord *ptY) { *ptX = NSToCoordRound(m20); *ptY = NSToCoordRound(m21); }
|
|
|
|
/**
|
|
* set the translation portion of this transform
|
|
*
|
|
* @param tx, x translation
|
|
* @param ty, y translation
|
|
* @exception
|
|
**/
|
|
|
|
void SetTranslation(float tX, float tY) {
|
|
m20 = tX;
|
|
m21 = tY;
|
|
type |= MG_2DTRANSLATION;
|
|
}
|
|
|
|
/**
|
|
* get the X translation portion of this transform
|
|
*
|
|
* @param
|
|
* @returns x component of translation
|
|
* @exception
|
|
**/
|
|
|
|
float GetXTranslation(void) { return m20; }
|
|
nscoord GetXTranslationCoord(void) { return NSToCoordRound(m20); }
|
|
|
|
/**
|
|
* get the Y translation portion of this transform
|
|
*
|
|
* @param
|
|
* @returns y component of translation
|
|
* @exception
|
|
**/
|
|
|
|
float GetYTranslation(void) { return m21; }
|
|
nscoord GetYTranslationCoord(void) { return NSToCoordRound(m21); }
|
|
|
|
/**
|
|
* set this matrix and type from another Transform2D
|
|
*
|
|
* @param aTransform2D is the Transform2D to be copied from
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void SetMatrix(nsTransform2D *aTransform2D);
|
|
|
|
/**
|
|
* post-multiply a new Transform
|
|
*
|
|
* @param newxform new Transform2D
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void Concatenate(nsTransform2D *newxform);
|
|
|
|
/**
|
|
* pre-multiply a new Transform
|
|
*
|
|
* @param newxform new Transform2D
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void PreConcatenate(nsTransform2D *newxform);
|
|
|
|
/**
|
|
* apply nontranslation portion of matrix to vector
|
|
*
|
|
* @param pt Point to transform
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void TransformNoXLate(float *ptX, float *ptY);
|
|
void TransformNoXLateCoord(nscoord *ptX, nscoord *ptY);
|
|
|
|
/**
|
|
* apply matrix to vector
|
|
*
|
|
* @param pt Point to transform
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void Transform(float *ptX, float *ptY);
|
|
void TransformCoord(nscoord *ptX, nscoord *ptY);
|
|
|
|
/**
|
|
* apply matrix to rect
|
|
*
|
|
* @param rect Rect to transform
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void Transform(float *aX, float *aY, float *aWidth, float *aHeight);
|
|
void TransformCoord(nscoord *aX, nscoord *aY, nscoord *aWidth, nscoord *aHeight);
|
|
|
|
/**
|
|
* Scale an array of X/Y coordinates by the X/Y scale factor in the
|
|
* matrix. The scale is done as if the other coordinate were zero.
|
|
*
|
|
* @param aSrc Base of coordinate input array
|
|
* @param aDst Base of coordinate output array
|
|
* @param aNumCoords Number of coordinates to scale
|
|
*/
|
|
void ScaleXCoords(const nscoord* aSrc, PRUint32 aNumCoords, PRIntn* aDst);
|
|
void ScaleYCoords(const nscoord* aSrc, PRUint32 aNumCoords, PRIntn* aDst);
|
|
|
|
/**
|
|
* add a translation to a Transform via x, y pair
|
|
*
|
|
* @param ptX x value to add as x translation
|
|
* @param ptY y value to add as y translation
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void AddTranslation(float ptX, float ptY);
|
|
|
|
/**
|
|
* add a scale to a Transform via x, y pair
|
|
*
|
|
* @param ptX x value to add as x scale
|
|
* @param ptY y value to add as y scale
|
|
* @exception
|
|
* @author michaelp 09-25-97 1:56pm
|
|
**/
|
|
|
|
void AddScale(float ptX, float ptY);
|
|
|
|
private:
|
|
nscoord ToCoordRound(float aCoord);
|
|
};
|
|
|
|
#endif
|