gecko-dev/layout/style/nsROCSSPrimitiveValue.cpp

294 строки
6.4 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 1.1 (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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsROCSSPrimitiveValue.h"
#include "nsCOMPtr.h"
#include "nsDOMError.h"
#include "prprf.h"
nsROCSSPrimitiveValue::nsROCSSPrimitiveValue(nsISupports *aOwner, float aT2P)
: mType(CSS_PX), mTwips(0), mString(), mOwner(aOwner), mT2P(aT2P),
mScriptObject(nsnull)
{
NS_INIT_REFCNT();
}
nsROCSSPrimitiveValue::~nsROCSSPrimitiveValue()
{
}
NS_IMPL_ADDREF(nsROCSSPrimitiveValue);
NS_IMPL_RELEASE(nsROCSSPrimitiveValue);
NS_INTERFACE_MAP_BEGIN(nsROCSSPrimitiveValue)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSPrimitiveValue)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValue)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMCSSPrimitiveValue)
NS_INTERFACE_MAP_END
// nsIScriptObjectOwner
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetScriptObject(nsIScriptContext *aContext,
void** aScriptObject)
{
nsresult res = NS_OK;
if (!mScriptObject) {
nsISupports *supports = NS_STATIC_CAST(nsIDOMCSSPrimitiveValue *, this);
// XXX Should be done through factory
res = NS_NewScriptCSSPrimitiveValue(aContext, supports, mOwner,
&mScriptObject);
}
*aScriptObject = mScriptObject;
return res;
}
// nsIDOMCSSValue
NS_IMETHODIMP
nsROCSSPrimitiveValue::SetScriptObject(void* aScriptObject)
{
mScriptObject = aScriptObject;
return NS_OK;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetCssText(nsAWritableString& aCssText)
{
nsAutoString tmpStr;
aCssText.Truncate();
switch (mType) {
case CSS_PX :
{
PRInt32 px = NSTwipsToIntPixels(mTwips, mT2P);
tmpStr.AppendInt(px);
tmpStr.AppendWithConversion("px");
break;
}
case CSS_CM :
{
float val = NS_TWIPS_TO_CENTIMETERS(mTwips);
char buf[64];
PR_snprintf(buf, 63, "%.2fcm", val);
tmpStr.AppendWithConversion("cm");
break;
}
case CSS_MM :
{
float val = NS_TWIPS_TO_MILLIMETERS(mTwips);
char buf[64];
PR_snprintf(buf, 63, "%.2fcm", val);
tmpStr.AppendWithConversion("mm");
break;
}
case CSS_IN :
{
float val = NS_TWIPS_TO_INCHES(mTwips);
char buf[64];
PR_snprintf(buf, 63, "%.2fcm", val);
tmpStr.AppendWithConversion("in");
break;
}
case CSS_PT :
{
float val = NSTwipsToFloatPoints(mTwips);
char buf[64];
PR_snprintf(buf, 63, "%.2fcm", val);
tmpStr.AppendWithConversion("pt");
break;
}
case CSS_STRING :
{
tmpStr.Append(mString);
break;
}
case CSS_PC :
case CSS_UNKNOWN :
case CSS_NUMBER :
case CSS_PERCENTAGE :
case CSS_EMS :
case CSS_EXS :
case CSS_DEG :
case CSS_RAD :
case CSS_GRAD :
case CSS_MS :
case CSS_S :
case CSS_HZ :
case CSS_KHZ :
case CSS_DIMENSION :
case CSS_URI :
case CSS_IDENT :
case CSS_ATTR :
case CSS_COUNTER :
case CSS_RECT :
case CSS_RGBCOLOR :
return NS_ERROR_DOM_INVALID_ACCESS_ERR;
}
aCssText.Assign(tmpStr);
return NS_OK;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::SetCssText(const nsAReadableString& aCssText)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetCssValueType(PRUint16* aValueType)
{
NS_ENSURE_ARG_POINTER(aValueType);
*aValueType = nsIDOMCSSValue::CSS_PRIMITIVE_VALUE;
return NS_OK;
}
// nsIDOMCSSPrimitiveValue
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetPrimitiveType(PRUint16* aPrimitiveType)
{
NS_ENSURE_ARG_POINTER(aPrimitiveType);
*aPrimitiveType = mType;
return NS_OK;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::SetFloatValue(PRUint16 aUnitType, float aFloatValue)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetFloatValue(PRUint16 aUnitType, float* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = 0;
if (mType == CSS_STRING) {
return NS_ERROR_DOM_INVALID_ACCESS_ERR;
}
switch(aUnitType) {
case CSS_PX :
*aReturn = NSTwipsToFloatPixels(mTwips, mT2P);
break;
case CSS_CM :
*aReturn = NS_TWIPS_TO_CENTIMETERS(mTwips);
break;
case CSS_MM :
*aReturn = NS_TWIPS_TO_MILLIMETERS(mTwips);
break;
case CSS_IN :
*aReturn = NS_TWIPS_TO_INCHES(mTwips);
break;
case CSS_PT :
*aReturn = NSTwipsToFloatPoints(mTwips);
break;
case CSS_PC :
case CSS_UNKNOWN :
case CSS_NUMBER :
case CSS_PERCENTAGE :
case CSS_EMS :
case CSS_EXS :
case CSS_DEG :
case CSS_RAD :
case CSS_GRAD :
case CSS_MS :
case CSS_S :
case CSS_HZ :
case CSS_KHZ :
case CSS_DIMENSION :
case CSS_STRING :
case CSS_URI :
case CSS_IDENT :
case CSS_ATTR :
case CSS_COUNTER :
case CSS_RECT :
case CSS_RGBCOLOR :
return NS_ERROR_DOM_INVALID_ACCESS_ERR;
}
return NS_OK;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::SetStringValue(PRUint16 aStringType,
const nsAReadableString& aStringValue)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetStringValue(nsAWritableString& aReturn)
{
aReturn.Assign(mString);
return NS_OK;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetCounterValue(nsIDOMCounter** aReturn)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetRectValue(nsIDOMRect** aReturn)
{
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
NS_IMETHODIMP
nsROCSSPrimitiveValue::GetRGBColorValue(nsIDOMRGBColor** aReturn)
{
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}