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Added new postscript fontmetric code, and update the Device and Rendering context to use them

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This commit is contained in:
dcone%netscape.com 1999-01-15 22:44:32 +00:00
parent cabf7ef087
commit 91a37ba797
5 changed files with 570 additions and 87 deletions
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159
gfx/src/ps/nsDeviceContextPS.cpp
View File

@ -19,6 +19,7 @@
#include "nsDeviceContextPS.h"
#include "nsRenderingContextPS.h"
#include "nsString.h"
#include "nsFontMetricsPS.h"
#include "prprf.h"
#include "nsPSUtil.h"
@ -27,6 +28,8 @@
static NS_DEFINE_IID(kDeviceContextIID, NS_IDEVICE_CONTEXT_IID);
/** ---------------------------------------------------
* See documentation in nsIDeviceContext.h
* @update 12/21/98 dwc
@ -46,6 +49,16 @@ nsDeviceContextPS :: nsDeviceContextPS()
*/
nsDeviceContextPS :: ~nsDeviceContextPS()
{
PRInt32 i, n;
// get rid of the fonts in our mFontMetrics cache
n= mFontMetrics.Count();
for (i = 0; i < n; i++){
nsIFontMetrics* fm = (nsIFontMetrics*) mFontMetrics.ElementAt(i);
fm->Destroy();
NS_RELEASE(fm);
}
mFontMetrics.Clear();
}
NS_IMPL_QUERY_INTERFACE(nsDeviceContextPS, kDeviceContextIID)
@ -56,10 +69,28 @@ NS_IMPL_RELEASE(nsDeviceContextPS)
* See documentation in nsDeviceContextPS.h
* @update 12/21/98 dwc
*/
NS_IMETHODIMP nsDeviceContextPS :: Init(nsIDeviceContext *aCreatingDeviceContext)
NS_IMETHODIMP nsDeviceContextPS :: Init(nsIDeviceContext *aCreatingDeviceContext,nsIDeviceContext *aPrinterContext, HDC aTheDC)
{
float origscale, newscale;
float t2d, a2d;
mDepth = 1;
mDelContext = aCreatingDeviceContext;
mDC = aTheDC;
mTwipsToPixels = (float)72.0/(float)NSIntPointsToTwips(72);
mPixelsToTwips = 1.0f / mTwipsToPixels;
GetTwipsToDevUnits(newscale);
aPrinterContext->GetTwipsToDevUnits(origscale);
mPixelScale = newscale / origscale;
aPrinterContext->GetTwipsToDevUnits(t2d);
aPrinterContext->GetAppUnitsToDevUnits(a2d);
mAppUnitsToDevUnits = (a2d / t2d) * mTwipsToPixels;
mDevUnitsToAppUnits = 1.0f / mAppUnitsToDevUnits;
return NS_OK;
}
@ -105,9 +136,8 @@ nsresult rv = NS_ERROR_OUT_OF_MEMORY;
NS_IMETHODIMP nsDeviceContextPS :: SupportsNativeWidgets(PRBool &aSupportsWidgets)
{
return (mDelContext->SupportsNativeWidgets(aSupportsWidgets));
//aSupportsWidgets = PR_FALSE;
//return NS_OK;
aSupportsWidgets = PR_FALSE;
return NS_OK;
}
/** ---------------------------------------------------
@ -117,12 +147,12 @@ NS_IMETHODIMP nsDeviceContextPS :: SupportsNativeWidgets(PRBool &aSupportsWidget
NS_IMETHODIMP nsDeviceContextPS :: GetScrollBarDimensions(float &aWidth, float &aHeight) const
{
return (mDelContext->GetScrollBarDimensions(aWidth, aHeight));
aWidth = ::GetSystemMetrics(SM_CXVSCROLL) * mDevUnitsToAppUnits;
aHeight = ::GetSystemMetrics(SM_CXHSCROLL) * mDevUnitsToAppUnits;
aWidth = 0;
aHeight = 0;
return NS_OK;
// XXX Should we push this to widget library
//aWidth = 320.0;
//aHeight = 320.0;
//return NS_OK;
}
/** ---------------------------------------------------
@ -133,8 +163,6 @@ NS_IMETHODIMP nsDeviceContextPS :: GetDrawingSurface(nsIRenderingContext &aConte
{
return(mDelContext->GetDrawingSurface(aContext,aSurface));
//aContext.CreateDrawingSurface(nsnull, 0, aSurface);
//return nsnull == aSurface ? NS_ERROR_OUT_OF_MEMORY : NS_OK;
}
/** ---------------------------------------------------
@ -143,10 +171,8 @@ NS_IMETHODIMP nsDeviceContextPS :: GetDrawingSurface(nsIRenderingContext &aConte
*/
NS_IMETHODIMP nsDeviceContextPS::GetDepth(PRUint32& aDepth)
{
return(mDelContext->GetDepth(aDepth));
return(1); // postscript is 1 bit
//aDepth = mDepth;
//return NS_OK;
}
/** ---------------------------------------------------
@ -165,33 +191,7 @@ NS_IMETHODIMP nsDeviceContextPS::CreateILColorSpace(IL_ColorSpace*& aColorSpace)
*/
NS_IMETHODIMP nsDeviceContextPS::GetILColorSpace(IL_ColorSpace*& aColorSpace)
{
return (mDelContext->GetILColorSpace(aColorSpace));
#ifdef NOTNOW
if (nsnull == mColorSpace) {
IL_RGBBits colorRGBBits;
// Default is to create a 32-bit color space
colorRGBBits.red_shift = 16;
colorRGBBits.red_bits = 8;
colorRGBBits.green_shift = 8;
colorRGBBits.green_bits = 8;
colorRGBBits.blue_shift = 0;
colorRGBBits.blue_bits = 8;
//mColorSpace = IL_CreateTrueColorSpace(&colorRGBBits, 32);
if (nsnull == mColorSpace) {
aColorSpace = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
}
//NS_POSTCONDITION(nsnull != mColorSpace, "null color space");
//aColorSpace = mColorSpace;
//IL_AddRefToColorSpace(aColorSpace);
return NS_OK;
#endif
}
@ -201,15 +201,10 @@ NS_IMETHODIMP nsDeviceContextPS::GetILColorSpace(IL_ColorSpace*& aColorSpace)
*/
NS_IMETHODIMP nsDeviceContextPS :: CheckFontExistence(const nsString& aFontName)
{
#ifdef NEVER
short fontNum;
if (GetMacFontNumber(aFontName, fontNum))
return NS_OK;
else
return NS_ERROR_FAILURE;
#endif
return NS_OK;
return (mDelContext->CheckFontExistence(aFontName));
//return NS_OK;
}
/** ---------------------------------------------------
@ -218,10 +213,11 @@ NS_IMETHODIMP nsDeviceContextPS :: CheckFontExistence(const nsString& aFontName)
*/
NS_IMETHODIMP nsDeviceContextPS::GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight)
{
aWidth = 1;
aHeight = 1;
return NS_ERROR_FAILURE;
aWidth = NSToIntRound((72.0f*8.0f) * mDevUnitsToAppUnits);
aHeight = NSToIntRound((72.0f*10.0f) * mDevUnitsToAppUnits);
return NS_OK;
}
/** ---------------------------------------------------
@ -230,7 +226,6 @@ NS_IMETHODIMP nsDeviceContextPS::GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRI
*/
NS_IMETHODIMP nsDeviceContextPS::GetDeviceContextFor(nsIDeviceContextSpec *aDevice,nsIDeviceContext *&aContext)
{
return NS_OK;
}
@ -368,10 +363,6 @@ NS_IMETHODIMP nsDeviceContextPS::EndDocument(void)
*/
NS_IMETHODIMP nsDeviceContextPS::BeginPage(void)
{
#ifdef NEVER
if(((nsDeviceContextSpecPS*)(this->mSpec))->mPrintManagerOpen)
::PrOpenPage(((nsDeviceContextSpecPS*)(this->mSpec))->mPrinterPort,nsnull);
#endif
return NS_OK;
}
@ -382,17 +373,9 @@ NS_IMETHODIMP nsDeviceContextPS::BeginPage(void)
*/
NS_IMETHODIMP nsDeviceContextPS::EndPage(void)
{
#ifdef NEVER
if(((nsDeviceContextSpecPS*)(this->mSpec))->mPrintManagerOpen) {
::SetPort((GrafPtr)(((nsDeviceContextSpecPS*)(this->mSpec))->mPrinterPort));
::PrClosePage(((nsDeviceContextSpecPS*)(this->mSpec))->mPrinterPort);
}
#endif
return NS_OK;
}
/** ---------------------------------------------------
* See documentation in nsIDeviceContext.h
* @update 12/21/98 dwc
@ -403,3 +386,51 @@ NS_IMETHODIMP nsDeviceContextPS :: ConvertPixel(nscolor aColor, PRUint32 & aPixe
return NS_OK;
}
NS_IMETHODIMP nsDeviceContextPS::GetMetricsFor(const nsFont& aFont, nsIFontMetrics *&aMetrics)
{
PRInt32 n,cnt;
nsresult rv;
// First check our cache
n = mFontMetrics.Count();
for (cnt = 0; cnt < n; cnt++){
aMetrics = (nsIFontMetrics*) mFontMetrics.ElementAt(cnt);
const nsFont *font;
aMetrics->GetFont(font);
if (aFont.Equals(*font)){
NS_ADDREF(aMetrics);
return NS_OK;
}
}
// It's not in the cache. Get font metrics and then cache them.
nsIFontMetrics* fm = new nsFontMetricsPS();
if (nsnull == fm) {
aMetrics = nsnull;
return NS_ERROR_FAILURE;
}
rv = fm->Init(aFont, this);
if (NS_OK != rv) {
aMetrics = nsnull;
return rv;
}
mFontMetrics.AppendElement(fm);
NS_ADDREF(fm); // this is for the cache
for (cnt = 0; cnt < n; cnt++){
aMetrics = (nsIFontMetrics*) mFontMetrics.ElementAt(cnt);
const nsFont *font;
aMetrics->GetFont(font);
}
NS_ADDREF(fm); // this is for the routine that needs this font
aMetrics = fm;
return NS_OK;
}

19
gfx/src/ps/nsDeviceContextPS.h
View File

@ -25,6 +25,8 @@
#include "nsIView.h"
#include "nsIRenderingContext.h"
#include "nsPrintManager.h"
#include "nsVoidArray.h"
class nsDeviceContextWin; // need to be a friend of the class using us.
@ -40,7 +42,7 @@ public:
* with a NativeWidget.
* @update 12/21/98 dwc
*/
NS_IMETHOD Init(nsIDeviceContext *aCreatingDeviceContext);
NS_IMETHOD Init(nsIDeviceContext *aCreatingDeviceContext,nsIDeviceContext *aPrinterContext, HDC aTheDC);
NS_IMETHOD CreateRenderingContext(nsIRenderingContext *&aContext);
NS_IMETHOD SupportsNativeWidgets(PRBool &aSupportsWidgets);
@ -51,24 +53,24 @@ public:
NS_IMETHOD GetDrawingSurface(nsIRenderingContext &aContext, nsDrawingSurface &aSurface);
NS_IMETHOD CheckFontExistence(const nsString& aFontName);
NS_IMETHOD CreateILColorSpace(IL_ColorSpace*& aColorSpace);
NS_IMETHOD CheckFontExistence(const nsString& aFontName);
NS_IMETHOD CreateILColorSpace(IL_ColorSpace*& aColorSpace);
NS_IMETHODIMP GetILColorSpace(IL_ColorSpace*& aColorSpace);
NS_IMETHOD GetDepth(PRUint32& aDepth);
NS_IMETHOD ConvertPixel(nscolor aColor, PRUint32 & aPixel);
NS_IMETHOD GetDepth(PRUint32& aDepth);
NS_IMETHOD ConvertPixel(nscolor aColor, PRUint32 & aPixel);
NS_IMETHOD GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight);
NS_IMETHOD GetDeviceContextFor(nsIDeviceContextSpec *aDevice,
nsIDeviceContext *&aContext);
NS_IMETHOD GetMetricsFor(const nsFont& aFont, nsIFontMetrics*& aMetrics);
NS_IMETHOD BeginDocument(void);
NS_IMETHOD EndDocument(void);
NS_IMETHOD BeginPage(void);
NS_IMETHOD EndPage(void);
protected:
virtual ~nsDeviceContextPS();
@ -78,6 +80,8 @@ protected:
nsIDeviceContextSpec *mSpec;
nsIDeviceContext *mDelContext; // since this is not really a device context, we ned a deligate
PrintSetup *mPrintSetup;
float mPixelScale;
nsVoidArray mFontMetrics; // we are not using the normal font cache, this is special for PostScript.
@ -85,6 +89,9 @@ public:
//static bool GetMacFontNumber(const nsString& aFontName, short &fontNum);
MWContext* GetPrintContext() { return mPrintContext; }
public:
HDC mDC;
friend nsDeviceContextWin; // need to be a friend of the class using us.
};

355
gfx/src/ps/nsFontMetricsPS.cpp Normal file
View File

@ -0,0 +1,355 @@
/* -*- 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.
*/
#include "nsFontMetricsPS.h"
static NS_DEFINE_IID(kIFontMetricsIID, NS_IFONT_METRICS_IID);
nsFontMetricsPS :: nsFontMetricsPS()
{
NS_INIT_REFCNT();
}
nsFontMetricsPS :: ~nsFontMetricsPS()
{
if (nsnull != mFont){
delete mFont;
mFont = nsnull;
}
if (NULL != mFontHandle){
::DeleteObject(mFontHandle);
mFontHandle = NULL;
}
mDeviceContext = nsnull;
}
#ifdef LEAK_DEBUG
nsrefcnt
nsFontMetricsPS :: AddRef()
{
NS_PRECONDITION(mRefCnt != 0, "resurrecting a dead object");
return ++mRefCnt;
}
nsrefcnt
nsFontMetricsPS :: Release()
{
NS_PRECONDITION(mRefCnt != 0, "too many release's");
if (--mRefCnt == 0) {
delete this;
}
return mRefCnt;
}
nsresult
nsFontMetricsPS :: QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
*aInstancePtr = NULL;
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kClassIID, kIFontMetricsIID);
if (aIID.Equals(kClassIID)) {
*aInstancePtr = (void*) this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*) ((nsISupports*)this);
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
#else
NS_IMPL_ISUPPORTS(nsFontMetricsPS, kIFontMetricsIID)
#endif
NS_IMETHODIMP
nsFontMetricsPS :: Init(const nsFont& aFont, nsIDeviceContext *aContext)
{
mFont = new nsFont(aFont);
//don't addref this to avoid circular refs
mDeviceContext = (nsDeviceContextPS *)aContext;
RealizeFont();
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: Destroy()
{
mDeviceContext = nsnull;
return NS_OK;
}
static void
MapGenericFamilyToFont(const nsString& aGenericFamily,
nsIDeviceContext* aDC,
nsString& aFontFace)
{
// the CSS generic names (conversions from Nav for now)
// XXX this need to check availability with the dc
PRBool aliased;
if (aGenericFamily.EqualsIgnoreCase("serif")) {
aDC->GetLocalFontName(nsString("Times New Roman"), aFontFace, aliased);
}
else if (aGenericFamily.EqualsIgnoreCase("sans-serif")) {
aDC->GetLocalFontName(nsString("Arial"), aFontFace, aliased);
}
else if (aGenericFamily.EqualsIgnoreCase("cursive")) {
aDC->GetLocalFontName(nsString("Script"), aFontFace, aliased);
}
else if (aGenericFamily.EqualsIgnoreCase("fantasy")) {
aDC->GetLocalFontName(nsString("Arial"), aFontFace, aliased);
}
else if (aGenericFamily.EqualsIgnoreCase("monospace")) {
aDC->GetLocalFontName(nsString("Courier New"), aFontFace, aliased);
}
else {
aFontFace.Truncate();
}
}
struct FontEnumData {
FontEnumData(nsIDeviceContext* aContext, TCHAR* aFaceName)
{
mContext = aContext;
mFaceName = aFaceName;
}
nsIDeviceContext* mContext;
TCHAR* mFaceName;
};
static PRBool
FontEnumCallback(const nsString& aFamily, PRBool aGeneric, void *aData)
{
FontEnumData* data = (FontEnumData*)aData;
if (aGeneric) {
nsAutoString realFace;
MapGenericFamilyToFont(aFamily, data->mContext, realFace);
realFace.ToCString(data->mFaceName, LF_FACESIZE);
return PR_FALSE; // stop
}
else {
nsAutoString realFace;
PRBool aliased;
data->mContext->GetLocalFontName(aFamily, realFace, aliased);
if (aliased || (NS_OK == data->mContext->CheckFontExistence(realFace))) {
realFace.ToCString(data->mFaceName, LF_FACESIZE);
return PR_FALSE; // stop
}
}
return PR_TRUE;
}
void
nsFontMetricsPS::RealizeFont()
{
// Fill in logFont structure; stolen from awt
LOGFONT logFont;
logFont.lfWidth = 0;
logFont.lfEscapement = 0;
logFont.lfOrientation = 0;
logFont.lfUnderline =
(mFont->decorations & NS_FONT_DECORATION_UNDERLINE)
? TRUE : FALSE;
logFont.lfStrikeOut =
(mFont->decorations & NS_FONT_DECORATION_LINE_THROUGH)
? TRUE : FALSE;
logFont.lfCharSet = DEFAULT_CHARSET;
logFont.lfOutPrecision = OUT_DEFAULT_PRECIS;
logFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
logFont.lfQuality = DEFAULT_QUALITY;
logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
logFont.lfWeight = ((400 < mFont->weight) ? FW_BOLD : FW_NORMAL); // XXX could be smarter
logFont.lfItalic = (mFont->style & (NS_FONT_STYLE_ITALIC | NS_FONT_STYLE_OBLIQUE))
? TRUE : FALSE; // XXX need better oblique support
float app2dev, app2twip, scale;
mDeviceContext->GetAppUnitsToDevUnits(app2dev);
mDeviceContext->GetDevUnitsToTwips(app2twip);
mDeviceContext->GetCanonicalPixelScale(scale);
app2twip *= app2dev * scale;
float rounded = ((float)NSIntPointsToTwips(NSTwipsToFloorIntPoints(nscoord(mFont->size * app2twip)))) / app2twip;
// round font size off to floor point size to be windows compatible
// logFont.lfHeight = - NSToIntRound(rounded * app2dev); // this is proper (windows) rounding
logFont.lfHeight = - LONG(rounded * app2dev); // this floor rounding is to make ours compatible with Nav 4.0
#ifdef NS_DEBUG
// Make Purify happy
memset(logFont.lfFaceName, 0, sizeof(logFont.lfFaceName));
#endif
logFont.lfFaceName[0] = '\0';
FontEnumData data(mDeviceContext, logFont.lfFaceName);
mFont->EnumerateFamilies(FontEnumCallback, &data);
// Create font handle from font spec
mFontHandle = ::CreateFontIndirect(&logFont);
HWND win = NULL;
HDC dc = NULL;
if (NULL != mDeviceContext->mDC)
dc = mDeviceContext->mDC;
else
{
// Find font metrics and character widths
win = (HWND)mDeviceContext->mWidget;
dc = ::GetDC(win);
}
HFONT oldfont = (HFONT)::SelectObject(dc, (HGDIOBJ) mFontHandle);
// Get font metrics
float dev2app;
mDeviceContext->GetDevUnitsToAppUnits(dev2app);
OUTLINETEXTMETRIC oMetrics;
TEXTMETRIC& metrics = oMetrics.otmTextMetrics;
nscoord onePixel = NSToCoordRound(1 * dev2app);
if (0 < ::GetOutlineTextMetrics(dc, sizeof(oMetrics), &oMetrics)) {
// mXHeight = NSToCoordRound(oMetrics.otmsXHeight * dev2app); XXX not really supported on windows
mXHeight = NSToCoordRound((float)metrics.tmAscent * dev2app * 0.50f); // 50% of ascent, best guess for true type
mSuperscriptOffset = NSToCoordRound(oMetrics.otmptSuperscriptOffset.y * dev2app);
mSubscriptOffset = NSToCoordRound(oMetrics.otmptSubscriptOffset.y * dev2app);
mStrikeoutSize = MAX(onePixel, NSToCoordRound(oMetrics.otmsStrikeoutSize * dev2app));
mStrikeoutOffset = NSToCoordRound(oMetrics.otmsStrikeoutPosition * dev2app);
mUnderlineSize = MAX(onePixel, NSToCoordRound(oMetrics.otmsUnderscoreSize * dev2app));
mUnderlineOffset = NSToCoordRound(oMetrics.otmsUnderscorePosition * dev2app);
}
else {
// Make a best-effort guess at extended metrics
// this is based on general typographic guidelines
::GetTextMetrics(dc, &metrics);
mXHeight = NSToCoordRound((float)metrics.tmAscent * dev2app * 0.56f); // 56% of ascent, best guess for non-true type
mSuperscriptOffset = mXHeight; // XXX temporary code!
mSubscriptOffset = mXHeight; // XXX temporary code!
mStrikeoutSize = onePixel; // XXX this is a guess
mStrikeoutOffset = NSToCoordRound(mXHeight / 2.0f); // 50% of xHeight
mUnderlineSize = onePixel; // XXX this is a guess
mUnderlineOffset = -NSToCoordRound((float)metrics.tmDescent * dev2app * 0.30f); // 30% of descent
}
mHeight = NSToCoordRound(metrics.tmHeight * dev2app);
mAscent = NSToCoordRound(metrics.tmAscent * dev2app);
mDescent = NSToCoordRound(metrics.tmDescent * dev2app);
mLeading = NSToCoordRound(metrics.tmInternalLeading * dev2app);
mMaxAscent = NSToCoordRound(metrics.tmAscent * dev2app);
mMaxDescent = NSToCoordRound(metrics.tmDescent * dev2app);
mMaxAdvance = NSToCoordRound(metrics.tmMaxCharWidth * dev2app);
::SelectObject(dc, oldfont);
if (NULL == mDeviceContext->mDC)
::ReleaseDC(win, dc);
}
NS_IMETHODIMP
nsFontMetricsPS :: GetXHeight(nscoord& aResult)
{
aResult = mXHeight;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetSuperscriptOffset(nscoord& aResult)
{
aResult = mSuperscriptOffset;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetSubscriptOffset(nscoord& aResult)
{
aResult = mSubscriptOffset;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetStrikeout(nscoord& aOffset, nscoord& aSize)
{
aOffset = mStrikeoutOffset;
aSize = mStrikeoutSize;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetUnderline(nscoord& aOffset, nscoord& aSize)
{
aOffset = mUnderlineOffset;
aSize = mUnderlineSize;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetHeight(nscoord &aHeight)
{
aHeight = mHeight;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetLeading(nscoord &aLeading)
{
aLeading = mLeading;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetMaxAscent(nscoord &aAscent)
{
aAscent = mMaxAscent;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetMaxDescent(nscoord &aDescent)
{
aDescent = mMaxDescent;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetMaxAdvance(nscoord &aAdvance)
{
aAdvance = mMaxAdvance;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS :: GetFont(const nsFont *&aFont)
{
aFont = mFont;
return NS_OK;
}
NS_IMETHODIMP
nsFontMetricsPS::GetFontHandle(nsFontHandle &aHandle)
{
aHandle = mFontHandle;
return NS_OK;
}

85
gfx/src/ps/nsFontMetricsPS.h Normal file
View File

@ -0,0 +1,85 @@
/* -*- 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 nsFontMetricsPS_h__
#define nsFontMetricsPS_h__
#include <windows.h>
#include "nsIFontMetrics.h"
#include "nsFont.h"
#include "nsString.h"
#include "nsUnitConversion.h"
#include "nsIDeviceContext.h"
#include "nsCRT.h"
#include "nsDeviceContextPS.h"
class nsFontMetricsPS : public nsIFontMetrics
{
public:
nsFontMetricsPS();
~nsFontMetricsPS();
void* operator new(size_t sz) {
void* rv = new char[sz];
nsCRT::zero(rv, sz);
return rv;
}
NS_DECL_ISUPPORTS
NS_IMETHOD Init(const nsFont& aFont, nsIDeviceContext* aContext);
NS_IMETHOD Destroy();
NS_IMETHOD GetXHeight(nscoord& aResult);
NS_IMETHOD GetSuperscriptOffset(nscoord& aResult);
NS_IMETHOD GetSubscriptOffset(nscoord& aResult);
NS_IMETHOD GetStrikeout(nscoord& aOffset, nscoord& aSize);
NS_IMETHOD GetUnderline(nscoord& aOffset, nscoord& aSize);
NS_IMETHOD GetHeight(nscoord &aHeight);
NS_IMETHOD GetLeading(nscoord &aLeading);
NS_IMETHOD GetMaxAscent(nscoord &aAscent);
NS_IMETHOD GetMaxDescent(nscoord &aDescent);
NS_IMETHOD GetMaxAdvance(nscoord &aAdvance);
NS_IMETHOD GetFont(const nsFont *&aFont);
NS_IMETHOD GetFontHandle(nsFontHandle &aHandle);
protected:
void RealizeFont();
nsDeviceContextPS *mDeviceContext;
nsFont *mFont;
nscoord mHeight;
nscoord mAscent;
nscoord mDescent;
nscoord mLeading;
nscoord mMaxAscent;
nscoord mMaxDescent;
nscoord mMaxAdvance;
nscoord mXHeight;
nscoord mSuperscriptOffset;
nscoord mSubscriptOffset;
nscoord mStrikeoutSize;
nscoord mStrikeoutOffset;
nscoord mUnderlineSize;
nscoord mUnderlineOffset;
HFONT mFontHandle;
};
#endif

39
gfx/src/ps/nsRenderingContextPS.cpp
View File

@ -740,6 +740,8 @@ nsTransform2D *theMatrix;
FillRect(aX, aY, aWidth, size);
}
}
#endif
return NS_OK;
@ -749,9 +751,10 @@ NS_IMETHODIMP nsRenderingContextPS :: DrawString(const PRUnichar *aString, PRUin
nscoord aX, nscoord aY, nscoord aWidth,
const nscoord* aSpacing)
{
PRInt32 x = aX;
PRInt32 y = aY;
nsTransform2D *theMatrix;
nsTransform2D *theMatrix;
PRInt32 x = aX;
PRInt32 y = aY;
nsIFontMetrics *fMetrics;
SetupFontAndColor();
mDelRenderingContext->GetCurrentTransform(theMatrix);
@ -764,39 +767,33 @@ nsTransform2D *theMatrix;
// Slow, but accurate rendering
const PRUnichar* end = aString + aLength;
while (aString < end){
// XXX can shave some cycles by inlining a version of transform
// coord where y is constant and transformed once
x = aX;
y = aY;
theMatrix->TransformCoord(&x, &y);
//::ExtTextOutW(mDC, x, y, 0, NULL, aString, 1, NULL);
//XXX:Remove ::ExtTextOutW above
//PostscriptTextOut((const char *)aString, 1, NS_PIXELS_TO_POINTS(x), NS_PIXELS_TO_POINTS(y), aWidth, aSpacing, PR_TRUE);
PostscriptTextOut((const char *)aString, 1, NS_PIXELS_TO_POINTS(x), NS_PIXELS_TO_POINTS(y), aWidth, aSpacing, PR_TRUE);
aX += *aSpacing++;
aString++;
}
} else {
theMatrix->TransformCoord(&x, &y);
//::ExtTextOutW(mDC, x, y, 0, NULL, aString, aLength, NULL);
//XXX: Remove ::ExtTextOutW above
//PostscriptTextOut((const char *)aString, aLength, NS_PIXELS_TO_POINTS(x), NS_PIXELS_TO_POINTS(y), aWidth, aSpacing, PR_TRUE);
PostscriptTextOut((const char *)aString, aLength, NS_PIXELS_TO_POINTS(x), NS_PIXELS_TO_POINTS(y), aWidth, aSpacing, PR_TRUE);
}
#ifdef NOTNOW
if (nsnull != mFontMetrics){
mDelRenderingContext->GetFontMetrics(fMetrics);
if (nsnull != fMetrics){
nsFont *font;
//mFontMetrics->GetFont(font);
fMetrics->GetFont(font);
PRUint8 decorations = font->decorations;
if (decorations & NS_FONT_DECORATION_OVERLINE){
nscoord offset;
nscoord size;
mFontMetrics->GetUnderline(offset, size);
fMetrics->GetUnderline(offset, size);
FillRect(aX, aY, aWidth, size);
}
}
#endif
return NS_OK;
}
@ -935,7 +932,15 @@ NS_IMETHODIMP nsRenderingContextPS :: CopyOffScreenBits(nsDrawingSurface aSrcSur
void nsRenderingContextPS :: SetupFontAndColor(void)
{
nscoord fontHeight = 0;
nsFont *font;
nsIFontMetrics *fMetrics;
mDelRenderingContext->GetFontMetrics(fMetrics);
fMetrics->GetHeight(fontHeight);
fMetrics->GetFont(font);
PostscriptFont(fontHeight,font->style,font->variant,font->weight,font->decorations);
}
#ifdef NOTNOW