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RetroZilla/layout/generic/nsSimplePageSequence.cpp
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

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/* -*- 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 ***** */
#include "nsCOMPtr.h"
#include "nsReadableUtils.h"
#include "nsSimplePageSequence.h"
#include "nsPresContext.h"
#include "nsIRenderingContext.h"
#include "nsHTMLAtoms.h"
#include "nsIDeviceContext.h"
#include "nsIViewManager.h"
#include "nsIPresShell.h"
#include "nsIFontMetrics.h"
#include "nsIPrintSettings.h"
#include "nsPageFrame.h"
#include "nsStyleConsts.h"
#include "nsRegion.h"
#include "nsLayoutAtoms.h"
#include "nsCSSFrameConstructor.h"
#include "nsContentUtils.h"
// DateTime Includes
#include "nsDateTimeFormatCID.h"
static NS_DEFINE_CID(kDateTimeFormatCID, NS_DATETIMEFORMAT_CID);
#define OFFSET_NOT_SET -1
// Print Options
#include "nsIPrintSettings.h"
#include "nsIPrintOptions.h"
#include "nsGfxCIID.h"
#include "nsIServiceManager.h"
static const char sPrintOptionsContractID[] = "@mozilla.org/gfx/printsettings-service;1";
//
#include "prlog.h"
#ifdef PR_LOGGING
PRLogModuleInfo * kLayoutPrintingLogMod = PR_NewLogModule("printing-layout");
#define PR_PL(_p1) PR_LOG(kLayoutPrintingLogMod, PR_LOG_DEBUG, _p1)
#else
#define PR_PL(_p1)
#endif
// This object a shared by all the nsPageFrames
// parented to a SimplePageSequenceFrame
nsSharedPageData::nsSharedPageData() :
mDateTimeStr(nsnull),
mHeadFootFont(nsnull),
mPageNumFormat(nsnull),
mPageNumAndTotalsFormat(nsnull),
mDocTitle(nsnull),
mDocURL(nsnull),
mReflowRect(0,0,0,0),
mReflowMargin(0,0,0,0),
mShadowSize(0,0),
mDeadSpaceMargin(0,0,0,0),
mExtraMargin(0,0,0,0),
mEdgePaperMargin(0,0,0,0),
mPageContentXMost(0),
mPageContentSize(0)
{
}
nsSharedPageData::~nsSharedPageData()
{
nsMemory::Free(mDateTimeStr);
if (mHeadFootFont) delete mHeadFootFont;
nsMemory::Free(mPageNumFormat);
nsMemory::Free(mPageNumAndTotalsFormat);
if (mDocTitle) nsMemory::Free(mDocTitle);
if (mDocURL) nsMemory::Free(mDocURL);
}
nsresult
NS_NewSimplePageSequenceFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsSimplePageSequenceFrame* it = new (aPresShell) nsSimplePageSequenceFrame;
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
*aNewFrame = it;
return NS_OK;
}
nsSimplePageSequenceFrame::nsSimplePageSequenceFrame() :
mIsPrintingSelection(PR_FALSE),
mTotalPages(-1),
mSelectionHeight(-1),
mYSelOffset(0)
{
mStartOffset = OFFSET_NOT_SET;
mEndOffset = OFFSET_NOT_SET;
nscoord halfInch = NS_INCHES_TO_TWIPS(0.5);
mMargin.SizeTo(halfInch, halfInch, halfInch, halfInch);
mPageData = new nsSharedPageData();
NS_ASSERTION(mPageData != nsnull, "Can't be null!");
if (mPageData->mHeadFootFont == nsnull) {
mPageData->mHeadFootFont = new nsFont("serif", NS_FONT_STYLE_NORMAL,NS_FONT_VARIANT_NORMAL,
NS_FONT_WEIGHT_NORMAL,0,NSIntPointsToTwips(10));
}
// XXX this code and the object data member "mIsPrintingSelection" is only needed
// for the hack for printing selection where we make the page the max size
nsresult rv;
mPageData->mPrintOptions = do_GetService(sPrintOptionsContractID, &rv);
if (NS_SUCCEEDED(rv) && mPageData->mPrintOptions) {
// now get the default font form the print options
mPageData->mPrintOptions->GetDefaultFont(*mPageData->mHeadFootFont);
}
mSkipPageBegin = PR_FALSE;
mSkipPageEnd = PR_FALSE;
mPrintThisPage = PR_FALSE;
mOffsetX = 0;
mOffsetY = 0;
// Doing this here so we only have to go get these formats once
SetPageNumberFormat("pagenumber", "%1$d", PR_TRUE);
SetPageNumberFormat("pageofpages", "%1$d of %2$d", PR_FALSE);
}
nsSimplePageSequenceFrame::~nsSimplePageSequenceFrame()
{
if (mPageData) delete mPageData;
}
nsresult
nsSimplePageSequenceFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(NS_GET_IID(nsIPageSequenceFrame))) {
*aInstancePtr = (void*)(nsIPageSequenceFrame*)this;
return NS_OK;
}
return nsContainerFrame::QueryInterface(aIID, aInstancePtr);
}
//----------------------------------------------------------------------
// Creates a continuing page frame
nsresult
nsSimplePageSequenceFrame::CreateContinuingPageFrame(nsPresContext* aPresContext,
nsIFrame* aPageFrame,
nsIFrame** aContinuingPage)
{
// Create the continuing frame
return aPresContext->PresShell()->FrameConstructor()->
CreateContinuingFrame(aPresContext, aPageFrame, this, aContinuingPage);
}
void
nsSimplePageSequenceFrame::GetEdgePaperMarginCoord(char* aPrefName,
nscoord& aCoord)
{
nsresult rv = mPageData->mPrintOptions->
GetPrinterPrefInt(mPageData->mPrintSettings,
NS_ConvertASCIItoUCS2(aPrefName).get(),
&aCoord);
if (NS_SUCCEEDED(rv)) {
nscoord inchInTwips = NS_INCHES_TO_TWIPS(1.0);
aCoord = PR_MAX(NS_INCHES_TO_TWIPS(float(aCoord)/100.0f), 0);
aCoord = PR_MIN(aCoord, inchInTwips); // an inch is still probably excessive
}
}
void
nsSimplePageSequenceFrame::GetEdgePaperMargin(nsMargin& aMargin)
{
aMargin.SizeTo(0,0,0,0);
GetEdgePaperMarginCoord("print_edge_top", aMargin.top);
GetEdgePaperMarginCoord("print_edge_left", aMargin.left);
GetEdgePaperMarginCoord("print_edge_bottom", aMargin.bottom);
GetEdgePaperMarginCoord("print_edge_right", aMargin.right);
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsSimplePageSequenceFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
NS_FRAME_TRACE_REFLOW_IN("nsSimplePageSequenceFrame::Reflow");
aStatus = NS_FRAME_COMPLETE; // we're always complete
// absolutely ignore all other types of reflows
// we only want to have done the Initial Reflow
if (eReflowReason_Resize == aReflowState.reason ||
eReflowReason_Incremental == aReflowState.reason ||
eReflowReason_StyleChange == aReflowState.reason ||
eReflowReason_Dirty == aReflowState.reason) {
// Return our desired size
aDesiredSize.height = mSize.height;
aDesiredSize.width = mSize.width;
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
return NS_OK;
}
// Turn on the scaling of twips so any of the scrollbars
// in the UI no longer get scaled
PRBool isPrintPreview =
aPresContext->Type() == nsPresContext::eContext_PrintPreview;
if (isPrintPreview) {
aPresContext->SetScalingOfTwips(PR_TRUE);
}
// See if we can get a Print Settings from the Context
if (!mPageData->mPrintSettings &&
aPresContext->Medium() == nsLayoutAtoms::print) {
mPageData->mPrintSettings = aPresContext->GetPrintSettings();
}
// now get out margins
if (mPageData->mPrintSettings) {
mPageData->mPrintSettings->GetMarginInTwips(mMargin);
PRInt16 printType;
mPageData->mPrintSettings->GetPrintRange(&printType);
mPrintRangeType = printType;
mIsPrintingSelection = nsIPrintSettings::kRangeSelection == printType;
}
// *** Special Override ***
// If this is a sub-sdoc (meaning it doesn't take the whole page)
// and if this Document is in the upper left hand corner
// we need to suppress the top margin or it will reflow too small
// Start by getting the actual printer page dimensions to see if we are not a whole page
nscoord width, height;
aPresContext->DeviceContext()->GetDeviceSurfaceDimensions(width, height);
// Compute the size of each page and the x coordinate that each page will
// be placed at
nsRect pageSize;
nsRect adjSize;
aPresContext->GetPageDim(&pageSize, &adjSize);
GetEdgePaperMargin(mPageData->mEdgePaperMargin);
nscoord extraThreshold = PR_MAX(pageSize.width, pageSize.height)/10;
PRInt32 gapInTwips = nsContentUtils::GetIntPref("print.print_extra_margin");
gapInTwips = PR_MAX(gapInTwips, 0);
gapInTwips = PR_MIN(gapInTwips, extraThreshold); // clamp to 1/10 of the largest dim of the page
nscoord extraGap = nscoord(gapInTwips);
nscoord deadSpaceGap;
GetDeadSpaceValue(&deadSpaceGap);
nsMargin deadSpaceMargin(0,0,0,0);
nsMargin extraMargin(0,0,0,0);
nsSize shadowSize(0,0);
if (isPrintPreview) {
if (adjSize.width == width && adjSize.height == height) {
deadSpaceMargin.SizeTo(deadSpaceGap, deadSpaceGap, deadSpaceGap, deadSpaceGap);
extraMargin.SizeTo(extraGap, extraGap, extraGap, extraGap);
nscoord fourPixels = aPresContext->IntScaledPixelsToTwips(4);
shadowSize.SizeTo(fourPixels, fourPixels);
}
}
mPageData->mShadowSize = shadowSize;
mPageData->mExtraMargin = extraMargin;
mPageData->mDeadSpaceMargin = deadSpaceMargin;
PRBool suppressLeftMargin = PR_FALSE;
PRBool suppressRightMargin = PR_FALSE;
PRBool suppressTopMargin = PR_FALSE;
PRBool suppressBottomMargin = PR_FALSE;
if (pageSize != adjSize &&
(adjSize.x != 0 || adjSize.y != 0 || adjSize.width != 0 || adjSize.height != 0)) {
suppressLeftMargin = pageSize.x != adjSize.x || (pageSize.x == adjSize.x && !adjSize.x);
suppressTopMargin = pageSize.y != adjSize.y || (pageSize.y == adjSize.y && !adjSize.y);
if (pageSize.width != adjSize.width) {
suppressRightMargin = PR_TRUE;
pageSize.width = adjSize.width;
}
if (pageSize.height != adjSize.height) {
suppressBottomMargin = PR_TRUE;
pageSize.height = adjSize.height;
}
}
// XXX - Hack Alert
// OK, so ther eis a selection, we will print the entire selection
// on one page and then crop the page.
// This means you can never print any selection that is longer than one page
// put it keeps it from page breaking in the middle of your print of the selection
// (see also nsDocumentViewer.cpp)
if (mIsPrintingSelection) {
pageSize.height = NS_UNCONSTRAINEDSIZE;
suppressLeftMargin = PR_FALSE;
suppressTopMargin = PR_FALSE;
suppressRightMargin = PR_FALSE;
suppressBottomMargin = PR_FALSE;
}
// only use this local margin for sizing,
// not for positioning
nsMargin margin(suppressLeftMargin?0:mMargin.left,
suppressTopMargin?0:mMargin.top,
suppressRightMargin?0:mMargin.right,
suppressBottomMargin?0:mMargin.bottom);
nscoord x = deadSpaceMargin.left;
nscoord y = deadSpaceMargin.top;// Running y-offset for each page
nsSize reflowPageSize(0,0);
// See if it's an incremental reflow command
if (eReflowReason_Incremental == aReflowState.reason) {
// XXX Skip Incremental reflow,
// in fact, all we want is the initial reflow
y = mRect.height;
} else {
// XXX Part of Temporary fix for Bug 127263
nsPageFrame::SetCreateWidget(PR_TRUE);
nsReflowReason reflowReason = aReflowState.reason;
SetPageSizes(pageSize, margin);
// Tile the pages vertically
nsHTMLReflowMetrics kidSize(nsnull);
for (nsIFrame* kidFrame = mFrames.FirstChild(); nsnull != kidFrame; ) {
// Reflow the page
// The availableHeight always comes in NS_UNCONSTRAINEDSIZE, so we need to check
// the "adjusted rect" to see if that is being reflowed NS_UNCONSTRAINEDSIZE or not
// When it is NS_UNCONSTRAINEDSIZE it means we are reflowing a single page
// to print selection. So this means we want to use NS_UNCONSTRAINEDSIZE without altering it
nsRect actualRect;
nsRect adjRect;
aPresContext->GetPageDim(&actualRect, &adjRect);
nscoord avHeight;
if (adjRect.height == NS_UNCONSTRAINEDSIZE) {
avHeight = NS_UNCONSTRAINEDSIZE;
} else {
avHeight = pageSize.height+deadSpaceMargin.top+deadSpaceMargin.bottom+shadowSize.height+extraMargin.top+extraMargin.bottom;
}
nsSize availSize(pageSize.width+deadSpaceMargin.right+deadSpaceMargin.left+shadowSize.width+extraMargin.right+extraMargin.left,
avHeight);
nsHTMLReflowState kidReflowState(aPresContext, aReflowState, kidFrame,
availSize, reflowReason);
nsReflowStatus status;
kidReflowState.mComputedWidth = kidReflowState.availableWidth;
//kidReflowState.mComputedHeight = kidReflowState.availableHeight;
PR_PL(("AV W: %d H: %d\n", kidReflowState.availableWidth, kidReflowState.availableHeight));
// Set the shared data into the page frame before reflow
nsPageFrame * pf = NS_STATIC_CAST(nsPageFrame*, kidFrame);
pf->SetSharedPageData(mPageData);
// Place and size the page. If the page is narrower than our
// max width then center it horizontally
ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, x, y, 0, status);
reflowPageSize.SizeTo(kidSize.width, kidSize.height);
FinishReflowChild(kidFrame, aPresContext, nsnull, kidSize, x, y, 0);
y += kidSize.height;
// XXX Temporary fix for Bug 127263
// This tells the nsPageFrame class to stop creating clipping widgets
// once we reach the 32k boundary for positioning
if (nsPageFrame::GetCreateWidget()) {
float t2p;
t2p = aPresContext->TwipsToPixels();
nscoord xp = NSTwipsToIntPixels(x, t2p);
nscoord yp = NSTwipsToIntPixels(y, t2p);
nsPageFrame::SetCreateWidget(xp < 0x8000 && yp < 0x8000);
}
// Leave a slight gap between the pages
y += deadSpaceGap;
// Is the page complete?
nsIFrame* kidNextInFlow = kidFrame->GetNextInFlow();
if (NS_FRAME_IS_COMPLETE(status)) {
NS_ASSERTION(nsnull == kidNextInFlow, "bad child flow list");
} else if (nsnull == kidNextInFlow) {
// The page isn't complete and it doesn't have a next-in-flow, so
// create a continuing page
nsIFrame* continuingPage;
nsresult rv = CreateContinuingPageFrame(aPresContext, kidFrame,
&continuingPage);
if (NS_FAILED(rv)) {
break;
}
// Add it to our child list
kidFrame->SetNextSibling(continuingPage);
reflowReason = eReflowReason_Initial;
}
// Get the next page
kidFrame = kidFrame->GetNextSibling();
}
// Get Total Page Count
nsIFrame* page;
PRInt32 pageTot = 0;
for (page = mFrames.FirstChild(); page; page = page->GetNextSibling()) {
pageTot++;
}
// Set Page Number Info
PRInt32 pageNum = 1;
for (page = mFrames.FirstChild(); page; page = page->GetNextSibling()) {
nsPageFrame * pf = NS_STATIC_CAST(nsPageFrame*, page);
if (pf != nsnull) {
pf->SetPageNumInfo(pageNum, pageTot);
}
pageNum++;
}
// Create current Date/Time String
if (!mDateFormatter)
mDateFormatter = do_CreateInstance(kDateTimeFormatCID);
#ifndef WINCE
NS_ENSURE_TRUE(mDateFormatter, NS_ERROR_FAILURE);
nsAutoString formattedDateString;
time_t ltime;
time( &ltime );
if (NS_SUCCEEDED(mDateFormatter->FormatTime(nsnull /* nsILocale* locale */,
kDateFormatShort,
kTimeFormatNoSeconds,
ltime,
formattedDateString))) {
PRUnichar * uStr = ToNewUnicode(formattedDateString);
SetDateTimeStr(uStr); // memory will be freed
}
#endif
}
// Return our desired size
aDesiredSize.height = y;
aDesiredSize.width = reflowPageSize.width+deadSpaceMargin.right+shadowSize.width+extraMargin.right+extraMargin.left;
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
// cache the size so we can set the desired size
// for the other reflows that happen
mSize.width = aDesiredSize.width;
mSize.height = aDesiredSize.height;
// Turn off the scaling of twips so any of the scrollbars
// in the document get scaled
if (isPrintPreview) {
aPresContext->SetScalingOfTwips(PR_FALSE);
}
NS_FRAME_TRACE_REFLOW_OUT("nsSimplePageSequeceFrame::Reflow", aStatus);
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return NS_OK;
}
//----------------------------------------------------------------------
#ifdef DEBUG
NS_IMETHODIMP
nsSimplePageSequenceFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("SimplePageSequence"), aResult);
}
#endif
//----------------------------------------------------------------------
NS_IMETHODIMP
nsSimplePageSequenceFrame::SetOffsets(nscoord aStartOffset, nscoord aEndOffset)
{
mStartOffset = aStartOffset;
mEndOffset = aEndOffset;
return NS_OK;
}
//====================================================================
//== Asynch Printing
//====================================================================
NS_IMETHODIMP
nsSimplePageSequenceFrame::GetCurrentPageNum(PRInt32* aPageNum)
{
NS_ENSURE_ARG_POINTER(aPageNum);
*aPageNum = mPageNum;
return NS_OK;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::GetNumPages(PRInt32* aNumPages)
{
NS_ENSURE_ARG_POINTER(aNumPages);
*aNumPages = mTotalPages;
return NS_OK;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::IsDoingPrintRange(PRBool* aDoing)
{
NS_ENSURE_ARG_POINTER(aDoing);
*aDoing = mDoingPageRange;
return NS_OK;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::GetPrintRange(PRInt32* aFromPage, PRInt32* aToPage)
{
NS_ENSURE_ARG_POINTER(aFromPage);
NS_ENSURE_ARG_POINTER(aToPage);
*aFromPage = mFromPageNum;
*aToPage = mToPageNum;
return NS_OK;
}
// Helper Function
void
nsSimplePageSequenceFrame::SetPageNumberFormat(const char* aPropName, const char* aDefPropVal, PRBool aPageNumOnly)
{
// Doing this here so we only have to go get these formats once
nsXPIDLString pageNumberFormat;
// Now go get the Localized Page Formating String
nsresult rv =
nsContentUtils::GetLocalizedString(nsContentUtils::ePRINTING_PROPERTIES,
aPropName, pageNumberFormat);
if (NS_FAILED(rv)) { // back stop formatting
pageNumberFormat.AssignASCII(aDefPropVal);
}
// Sets the format into a static data memeber which will own the memory and free it
PRUnichar* uStr = ToNewUnicode(pageNumberFormat);
if (uStr != nsnull) {
SetPageNumberFormat(uStr, aPageNumOnly); // nsPageFrame will own the memory
}
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::StartPrint(nsPresContext* aPresContext,
nsIPrintSettings* aPrintSettings,
PRUnichar* aDocTitle,
PRUnichar* aDocURL)
{
NS_ENSURE_ARG_POINTER(aPresContext);
NS_ENSURE_ARG_POINTER(aPrintSettings);
if (!mPageData->mPrintSettings) {
mPageData->mPrintSettings = aPrintSettings;
}
// Only set them if they are not null
if (aDocTitle) mPageData->mDocTitle = aDocTitle;
if (aDocURL) mPageData->mDocURL = aDocURL;
aPrintSettings->GetMarginInTwips(mMargin);
aPrintSettings->GetStartPageRange(&mFromPageNum);
aPrintSettings->GetEndPageRange(&mToPageNum);
aPrintSettings->GetMarginInTwips(mMargin);
mDoingPageRange = nsIPrintSettings::kRangeSpecifiedPageRange == mPrintRangeType ||
nsIPrintSettings::kRangeSelection == mPrintRangeType;
// If printing a range of pages make sure at least the starting page
// number is valid
PRInt32 totalPages = mFrames.GetLength();
if (mDoingPageRange) {
if (mFromPageNum > totalPages) {
return NS_ERROR_INVALID_ARG;
}
}
// Begin printing of the document
nsresult rv = NS_OK;
#if defined(DEBUG_rods) || defined(DEBUG_dcone)
{
nsIView* seqView = GetView();
nsRect rect = GetRect();
PR_PL(("Seq Frame: %p - [%5d,%5d,%5d,%5d] ", this, rect.x, rect.y, rect.width, rect.height));
PR_PL(("view: %p ", seqView));
if (seqView) {
nsRect viewRect = seqView->GetBounds();
PR_PL((" [%5d,%5d,%5d,%5d]", viewRect.x, viewRect.y, viewRect.width, viewRect.height));
}
PR_PL(("\n"));
}
{
PRInt32 pageNum = 1;
for (nsIFrame* page = mFrames.FirstChild(); page;
page = page->GetNextSibling()) {
nsIView* view = page->GetView();
NS_ASSERTION(view, "no page view");
nsRect rect = page->GetRect();
nsRect viewRect = view->GetBounds();
PR_PL((" Page: %p No: %d - [%5d,%5d,%5d,%5d] ", page, pageNum, rect.x, rect.y, rect.width, rect.height));
PR_PL((" [%5d,%5d,%5d,%5d]\n", viewRect.x, viewRect.y, viewRect.width, viewRect.height));
pageNum++;
}
}
//printf("***** Setting aPresContext %p is painting selection %d\n", aPresContext, nsIPrintSettings::kRangeSelection == mPrintRangeType);
#endif
// Determine if we are rendering only the selection
aPresContext->SetIsRenderingOnlySelection(nsIPrintSettings::kRangeSelection == mPrintRangeType);
if (mDoingPageRange) {
// XXX because of the hack for making the selection all print on one page
// we must make sure that the page is sized correctly before printing.
PRInt32 width, height;
aPresContext->DeviceContext()->GetDeviceSurfaceDimensions(width, height);
PRInt32 pageNum = 1;
nscoord y = 0;//mMargin.top;
for (nsIFrame* page = mFrames.FirstChild(); page;
page = page->GetNextSibling()) {
nsIView* view = page->GetView();
NS_ASSERTION(view, "no page view");
nsIViewManager* vm = view->GetViewManager();
NS_ASSERTION(vm, "no view manager");
if (pageNum < mFromPageNum || pageNum > mToPageNum) {
// Hide the pages that won't be printed to the Viewmanager
// doesn't put them in the display list. Also, makde
// sure the child views don't get asked to print
// but my guess is that there won't be any
vm->SetViewVisibility(view, nsViewVisibility_kHide);
nsRegion emptyRegion;
vm->SetViewChildClipRegion(view, &emptyRegion);
} else {
nsRect rect = page->GetRect();
rect.y = y;
rect.height = height;
page->SetRect(rect);
nsRect viewRect = view->GetBounds();
viewRect.y = y;
viewRect.height = height;
vm->MoveViewTo(view, viewRect.x, viewRect.y);
viewRect.x = 0;
viewRect.y = 0;
vm->ResizeView(view, viewRect);
y += rect.height + mMargin.top + mMargin.bottom;
}
pageNum++;
}
// adjust total number of pages
if (nsIPrintSettings::kRangeSelection != mPrintRangeType) {
totalPages = pageNum - 1;
}
}
// XXX - This wouldn't have to be done each time
// but it isn't that expensive and this the best place
// to have access to a localized file properties file
//
// Note: because this is done here it makes a little bit harder
// to have UI for setting the header/footer font name and size
//
// Get default font name and size to be used for the headers and footers
nsXPIDLString fontName;
rv = nsContentUtils::GetLocalizedString(nsContentUtils::ePRINTING_PROPERTIES,
"fontname", fontName);
if (NS_FAILED(rv)) {
fontName.AssignLiteral("serif");
}
nsXPIDLString fontSizeStr;
nscoord pointSize = 10;;
rv = nsContentUtils::GetLocalizedString(nsContentUtils::ePRINTING_PROPERTIES,
"fontsize", fontSizeStr);
if (NS_SUCCEEDED(rv)) {
PRInt32 errCode;
pointSize = fontSizeStr.ToInteger(&errCode);
if (NS_FAILED(errCode)) {
pointSize = 10;
}
}
mPageData->mPrintOptions->SetFontNamePointSize(fontName, pointSize);
// Doing this here so we only have to go get these formats once
SetPageNumberFormat("pagenumber", "%1$d", PR_TRUE);
SetPageNumberFormat("pageofpages", "%1$d of %2$d", PR_FALSE);
mPageNum = 1;
mPrintedPageNum = 1;
mCurrentPageFrame = mFrames.FirstChild();
if (mTotalPages == -1) {
mTotalPages = totalPages;
}
return rv;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::PrintNextPage(nsPresContext* aPresContext)
{
NS_ENSURE_ARG_POINTER(aPresContext);
// Print each specified page
// pageNum keeps track of the current page and what pages are printing
//
// printedPageNum keeps track of the current page number to be printed
// Note: When print al the pages or a page range the printed page shows the
// actual page number, when printing selection it prints the page number starting
// with the first page of the selection. For example if the user has a
// selection that starts on page 2 and ends on page 3, the page numbers when
// print are 1 and then two (which is different than printing a page range, where
// the page numbers would have been 2 and then 3)
if (mCurrentPageFrame == nsnull) {
return NS_ERROR_FAILURE;
}
PRBool printEvenPages, printOddPages;
mPageData->mPrintSettings->GetPrintOptions(nsIPrintSettings::kPrintEvenPages, &printEvenPages);
mPageData->mPrintSettings->GetPrintOptions(nsIPrintSettings::kPrintOddPages, &printOddPages);
// Begin printing of the document
nsIDeviceContext *dc = aPresContext->DeviceContext();
NS_ASSERTION(dc, "nsIDeviceContext can't be NULL!");
nsIViewManager* vm = aPresContext->GetViewManager();
NS_ASSERTION(vm, "nsIViewManager can't be NULL!");
nsresult rv = NS_OK;
// See whether we should print this page
mPrintThisPage = PR_TRUE;
// If printing a range of pages check whether the page number is in the
// range of pages to print
if (mDoingPageRange) {
if (mPageNum < mFromPageNum) {
mPrintThisPage = PR_FALSE;
} else if (mPageNum > mToPageNum) {
mPageNum++;
mCurrentPageFrame = nsnull;
return NS_OK;
}
}
// Check for printing of odd and even pages
if (mPageNum & 0x1) {
if (!printOddPages) {
mPrintThisPage = PR_FALSE; // don't print odd numbered page
}
} else {
if (!printEvenPages) {
mPrintThisPage = PR_FALSE; // don't print even numbered page
}
}
if (mPrintThisPage) {
// XXX This is temporary fix for printing more than one page of a selection
// This does a poor man's "dump" pagination (see Bug 89353)
// It has laid out as one long page and now we are just moving or view up/down
// one page at a time and printing the contents of what is exposed by the rect.
// currently this does not work for IFrames
// I will soon improve this to work with IFrames
PRBool continuePrinting = PR_TRUE;
PRInt32 width, height;
dc->GetDeviceSurfaceDimensions(width, height);
nsRect clipRect(0, 0, width, height);
nsRect slidingRect(-1, -1, -1, -1);
height -= mMargin.top + mMargin.bottom;
width -= mMargin.left + mMargin.right;
nscoord selectionY = height;
nsIView* containerView = nsnull;
nsRect containerRect;
if (mSelectionHeight > -1) {
nsIFrame* childFrame = mFrames.FirstChild();
nsIFrame* conFrame = childFrame->GetFirstChild(nsnull);
containerView = conFrame->GetView();
NS_ASSERTION(containerView, "Container view can't be null!");
containerRect = containerView->GetBounds();
containerRect.y -= mYSelOffset;
slidingRect.SetRect(0,mYSelOffset,width,height);
vm->MoveViewTo(containerView, containerRect.x, containerRect.y);
nsRect r(0, 0, containerRect.width, containerRect.height);
vm->ResizeView(containerView, r, PR_FALSE);
clipRect.SetRect(mMargin.left, mMargin.right, width, height);
}
while (continuePrinting) {
if (!mSkipPageBegin) {
PR_PL(("\n"));
PR_PL(("***************** BeginPage *****************\n"));
rv = dc->BeginPage();
if (NS_FAILED(rv)) {
return rv;
}
}
// cast the frame to be a page frame
nsPageFrame * pf = NS_STATIC_CAST(nsPageFrame*, mCurrentPageFrame);
if (pf != nsnull) {
pf->SetPageNumInfo(mPrintedPageNum, mTotalPages);
pf->SetSharedPageData(mPageData);
if (mSelectionHeight > -1) {
pf->SetClipRect(&slidingRect);
}
}
// Print the page
nsIView* view = mCurrentPageFrame->GetView();
NS_ASSERTION(view, "no page view");
PR_PL(("SeqFr::Paint -> %p PageNo: %d View: %p", pf, mPageNum, view));
PR_PL((" At: %d,%d\n", mMargin.left+mOffsetX, mMargin.top+mOffsetY));
vm->SetViewContentTransparency(view, PR_FALSE);
vm->Display(view, mOffsetX, mOffsetY, clipRect);
// this view was printed and since display set the origin
// 0,0 there is a danger that this view can be printed again
// If it is a sibling to another page/view. Setting the visibility
// to hide will keep this page from printing again - dwc
//
// XXX Doesn't seem like we need to do this anymore
//view->SetVisibility(nsViewVisibility_kHide);
if (!mSkipPageEnd) {
PR_PL(("***************** End Page (PrintNextPage) *****************\n"));
rv = dc->EndPage();
if (NS_FAILED(rv)) {
return rv;
}
}
if (mSelectionHeight > -1 && selectionY < mSelectionHeight) {
selectionY += height;
mPrintedPageNum++;
pf->SetPageNumInfo(mPrintedPageNum, mTotalPages);
containerRect.y -= height;
containerRect.height += height;
vm->MoveViewTo(containerView, containerRect.x, containerRect.y);
nsRect r(0, 0, containerRect.width, containerRect.height);
vm->ResizeView(containerView, r, PR_FALSE);
if (pf != nsnull) {
slidingRect.y += height;
}
} else {
continuePrinting = PR_FALSE;
}
}
}
if (!mSkipPageEnd) {
if (nsIPrintSettings::kRangeSelection != mPrintRangeType ||
(nsIPrintSettings::kRangeSelection == mPrintRangeType && mPrintThisPage)) {
mPrintedPageNum++;
}
mPageNum++;
mCurrentPageFrame = mCurrentPageFrame->GetNextSibling();
}
return rv;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::DoPageEnd(nsPresContext* aPresContext)
{
nsresult rv = NS_OK;
if (mPrintThisPage) {
if(mSkipPageEnd){
PR_PL(("***************** End Page (DoPageEnd) *****************\n"));
nsresult rv = aPresContext->DeviceContext()->EndPage();
if (NS_FAILED(rv)) {
return rv;
}
}
}
if (nsIPrintSettings::kRangeSelection != mPrintRangeType ||
(nsIPrintSettings::kRangeSelection == mPrintRangeType && mPrintThisPage)) {
mPrintedPageNum++;
}
mPageNum++;
if (mCurrentPageFrame) {
mCurrentPageFrame = mCurrentPageFrame->GetNextSibling();
}
return rv;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::SuppressHeadersAndFooters(PRBool aDoSup)
{
for (nsIFrame* f = mFrames.FirstChild(); f; f = f->GetNextSibling()) {
nsPageFrame * pf = NS_STATIC_CAST(nsPageFrame*, f);
if (pf != nsnull) {
pf->SuppressHeadersAndFooters(aDoSup);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsSimplePageSequenceFrame::SetClipRect(nsPresContext* aPresContext, nsRect* aRect)
{
for (nsIFrame* f = mFrames.FirstChild(); f; f = f->GetNextSibling()) {
nsPageFrame * pf = NS_STATIC_CAST(nsPageFrame*, f);
if (pf != nsnull) {
pf->SetClipRect(aRect);
}
}
return NS_OK;
}
//------------------------------------------------------------------------------
NS_IMETHODIMP
nsSimplePageSequenceFrame::Paint(nsPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
aRenderingContext.PushState();
aRenderingContext.SetColor(NS_RGB(255,255,255));
if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
nsRect rect = mRect;
aRenderingContext.SetColor(NS_RGB(255,255,255));
rect.x = 0;
rect.y = 0;
aRenderingContext.FillRect(rect);
}
nsresult rv = nsContainerFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
aRenderingContext.PopState();
return rv;
}
nsIAtom*
nsSimplePageSequenceFrame::GetType() const
{
return nsLayoutAtoms::sequenceFrame;
}
//------------------------------------------------------------------------------
void
nsSimplePageSequenceFrame::SetPageNumberFormat(PRUnichar * aFormatStr, PRBool aForPageNumOnly)
{
NS_ASSERTION(aFormatStr != nsnull, "Format string cannot be null!");
NS_ASSERTION(mPageData != nsnull, "mPageData string cannot be null!");
if (aForPageNumOnly) {
if (mPageData->mPageNumFormat != nsnull) {
nsMemory::Free(mPageData->mPageNumFormat);
}
mPageData->mPageNumFormat = aFormatStr;
} else {
if (mPageData->mPageNumAndTotalsFormat != nsnull) {
nsMemory::Free(mPageData->mPageNumAndTotalsFormat);
}
mPageData->mPageNumAndTotalsFormat = aFormatStr;
}
}
//------------------------------------------------------------------------------
void
nsSimplePageSequenceFrame::SetDateTimeStr(PRUnichar * aDateTimeStr)
{
NS_ASSERTION(aDateTimeStr != nsnull, "DateTime string cannot be null!");
NS_ASSERTION(mPageData != nsnull, "mPageData string cannot be null!");
if (mPageData->mDateTimeStr != nsnull) {
nsMemory::Free(mPageData->mDateTimeStr);
}
mPageData->mDateTimeStr = aDateTimeStr;
}
//------------------------------------------------------------------------------
void
nsSimplePageSequenceFrame::SetPageSizes(const nsRect& aRect, const nsMargin& aMarginRect)
{
NS_ASSERTION(mPageData != nsnull, "mPageData string cannot be null!");
mPageData->mReflowRect = aRect;
mPageData->mReflowMargin = aMarginRect;
}
//------------------------------------------------------------------------------
// For Shrink To Fit
//
// Return the percentage that the page needs to shrink to
//
NS_IMETHODIMP
nsSimplePageSequenceFrame::GetSTFPercent(float& aSTFPercent)
{
NS_ENSURE_TRUE(mPageData, NS_ERROR_UNEXPECTED);
aSTFPercent = 1.0f;
if (mPageData && (mPageData->mPageContentXMost > mPageData->mPageContentSize)) {
aSTFPercent = float(mPageData->mPageContentSize) / float(mPageData->mPageContentXMost);
}
return NS_OK;
}
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