xpdfviewer.cc

将pdf文档转换为高质量的html文档

    XtSetArg(args[n], XPDFNentryPosition, i); ++n;
    if (parent) {
      XtSetArg(args[n], XPDFNentryParent, parent); ++n;
    }
    XtSetArg(args[n], XPDFNentryExpanded, item->isOpen()); ++n;
    s = XmStringCreateLocalized(title->getCString());
    delete title;
    XtSetArg(args[n], XmNlabelString, s); ++n;
    XtSetArg(args[n], XmNuserData, item); ++n;
    XtSetArg(args[n], XmNmarginWidth, 0); ++n;
    XtSetArg(args[n], XmNmarginHeight, 2); ++n;
    XtSetArg(args[n], XmNshadowThickness, 0); ++n;
    XtSetArg(args[n], XmNforeground,
	     app->getReverseVideo() ? WhitePixel(display, screenNum)
	                            : BlackPixel(display, screenNum)); ++n;
    XtSetArg(args[n], XmNbackground, app->getPaperPixel()); ++n;
    label = XmCreateLabelGadget(outlineTree, "label", args, n);
    XmStringFree(s);
    if (outlineLabelsLength == outlineLabelsSize) {
      outlineLabelsSize += 64;
      outlineLabels = (Widget *)greallocn(outlineLabels,
					  outlineLabelsSize, sizeof(Widget *));
    }
    outlineLabels[outlineLabelsLength++] = label;
    item->open();
    if ((kids = item->getKids())) {
      setupOutlineItems(kids, label, uMap);
    }
  }
}

void XPDFViewer::outlineSelectCbk(Widget widget, XtPointer ptr,
				  XtPointer callData) {
  XPDFViewer *viewer = (XPDFViewer *)ptr;
  XPDFTreeSelectCallbackStruct *data =
      (XPDFTreeSelectCallbackStruct *)callData;
  OutlineItem *item;

  XtVaGetValues(data->selectedItem, XmNuserData, &item, NULL);
  if (item) {
    if (item->getAction()) {
      viewer->core->doAction(item->getAction());
    }
  }
  viewer->core->takeFocus();
}

#endif // !DISABLE_OUTLINE

//------------------------------------------------------------------------
// GUI code: "about" dialog
//------------------------------------------------------------------------

void XPDFViewer::initAboutDialog() {
  Widget scrolledWin, col, label, sep, closeBtn;
  Arg args[20];
  int n, i;
  XmString s;
  char buf[20];

  //----- dialog
  n = 0;
  s = XmStringCreateLocalized(xpdfAppName ": About");
  XtSetArg(args[n], XmNdialogTitle, s); ++n;
  XtSetArg(args[n], XmNwidth, 450); ++n;
  XtSetArg(args[n], XmNheight, 300); ++n;
  aboutDialog = XmCreateFormDialog(win, "aboutDialog", args, n);
  XmStringFree(s);

  //----- "close" button
  n = 0;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNrightOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomOffset, 4); ++n;
  closeBtn = XmCreatePushButton(aboutDialog, "Close", args, n);
  XtManageChild(closeBtn);
  n = 0;
  XtSetArg(args[n], XmNdefaultButton, closeBtn); ++n;
  XtSetArg(args[n], XmNcancelButton, closeBtn); ++n;
  XtSetValues(aboutDialog, args, n);

  //----- scrolled window and RowColumn
  n = 0;
  XtSetArg(args[n], XmNtopAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNbottomWidget, closeBtn); ++n;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNscrollingPolicy, XmAUTOMATIC); ++n;
  scrolledWin = XmCreateScrolledWindow(aboutDialog, "scrolledWin", args, n);
  XtManageChild(scrolledWin);
  n = 0;
  XtSetArg(args[n], XmNorientation, XmVERTICAL); ++n;
  XtSetArg(args[n], XmNpacking, XmPACK_TIGHT); ++n;
  col = XmCreateRowColumn(scrolledWin, "col", args, n);
  XtManageChild(col);

  //----- fonts
  aboutBigFont =
    createFontList("-*-times-bold-i-normal--20-*-*-*-*-*-iso8859-1");
  aboutVersionFont =
    createFontList("-*-times-medium-r-normal--16-*-*-*-*-*-iso8859-1");
  aboutFixedFont =
    createFontList("-*-courier-medium-r-normal--12-*-*-*-*-*-iso8859-1");

  //----- heading
  n = 0;
  s = XmStringCreateLocalized("Xpdf");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutBigFont); ++n;
  label = XmCreateLabel(col, "h0", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;
  s = XmStringCreateLocalized("Version " xpdfVersion);
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutVersionFont); ++n;
  label = XmCreateLabel(col, "h1", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;
  s = XmStringCreateLocalized(xpdfCopyright);
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutVersionFont); ++n;
  label = XmCreateLabel(col, "h2", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;
  s = XmStringCreateLocalized(" ");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutVersionFont); ++n;
  label = XmCreateLabel(col, "h3", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;
  XtSetArg(args[n], XmNorientation, XmHORIZONTAL); ++n;
  sep = XmCreateSeparator(col, "sep", args, n);
  XtManageChild(sep);
  n = 0;
  s = XmStringCreateLocalized(" ");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutVersionFont); ++n;
  label = XmCreateLabel(col, "h4", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;

  //----- text
  for (i = 0; aboutWinText[i]; ++i) {
    n = 0;
    s = XmStringCreateLocalized(aboutWinText[i]);
    XtSetArg(args[n], XmNlabelString, s); ++n;
    XtSetArg(args[n], XmNfontList, aboutFixedFont); ++n;
    sprintf(buf, "t%d", i);
    label = XmCreateLabel(col, buf, args, n);
    XtManageChild(label);
    XmStringFree(s);
  }
}

//------------------------------------------------------------------------
// GUI code: "open" dialog
//------------------------------------------------------------------------

void XPDFViewer::initOpenDialog() {
  Arg args[20];
  int n;
  XmString s1, s2, s3;
  GString *dir;

  n = 0;
  s1 = XmStringCreateLocalized("Open");
  XtSetArg(args[n], XmNokLabelString, s1); ++n;
  s2 = XmStringCreateLocalized("*.[Pp][Dd][Ff]");
  XtSetArg(args[n], XmNpattern, s2); ++n;
  s3 = XmStringCreateLocalized(xpdfAppName ": Open");
  XtSetArg(args[n], XmNdialogTitle, s3); ++n;
  XtSetArg(args[n], XmNdialogStyle, XmDIALOG_PRIMARY_APPLICATION_MODAL); ++n;
  XtSetArg(args[n], XmNautoUnmanage, True); ++n;
  openDialog = XmCreateFileSelectionDialog(win, "openDialog", args, n);
  XmStringFree(s1);
  XmStringFree(s2);
  XmStringFree(s3);
  XtUnmanageChild(XmFileSelectionBoxGetChild(openDialog,
					     XmDIALOG_HELP_BUTTON));
  XtAddCallback(openDialog, XmNokCallback,
		&openOkCbk, (XtPointer)this);

  if (core->getDoc() && core->getDoc()->getFileName()) {
    dir = makePathAbsolute(grabPath(
	      core->getDoc()->getFileName()->getCString()));
    s1 = XmStringCreateLocalized(dir->getCString());
    XtVaSetValues(openDialog, XmNdirectory, s1, NULL);
    XmStringFree(s1);
    delete dir;
  }
}

void XPDFViewer::mapOpenDialog(GBool openInNewWindowA) {
  if (!openDialog) {
    initOpenDialog();
  }
  openInNewWindow = openInNewWindowA;
  XmFileSelectionDoSearch(openDialog, NULL);
  XtManageChild(openDialog);
}

void XPDFViewer::openOkCbk(Widget widget, XtPointer ptr,
			   XtPointer callData) {
  XPDFViewer *viewer = (XPDFViewer *)ptr;
  XmFileSelectionBoxCallbackStruct *data =
    (XmFileSelectionBoxCallbackStruct *)callData;
  char *fileName;
  XmStringContext context;
  XmStringCharSet charSet;
  XmStringDirection dir;
  Boolean sep;
  GString *fileNameStr;

  XmStringInitContext(&context, data->value);
  if (XmStringGetNextSegment(context, &fileName, &charSet, &dir, &sep)) {
    fileNameStr = new GString(fileName);
    if (viewer->openInNewWindow) {
      viewer->app->open(fileNameStr);
    } else {
      if (viewer->loadFile(fileNameStr)) {
	viewer->displayPage(1, viewer->core->getZoom(),
			    viewer->core->getRotate(), gTrue, gTrue);
      }
    }
    delete fileNameStr;
    XtFree(charSet);
    XtFree(fileName);
  }
  XmStringFreeContext(context);
}

//------------------------------------------------------------------------
// GUI code: "find" dialog
//------------------------------------------------------------------------

void XPDFViewer::initFindDialog() {
  Widget form1, label, okBtn, closeBtn;
  Arg args[20];
  int n;
  XmString s;

  //----- dialog
  n = 0;
  s = XmStringCreateLocalized(xpdfAppName ": Find");
  XtSetArg(args[n], XmNdialogTitle, s); ++n;
  XtSetArg(args[n], XmNnavigationType, XmNONE); ++n;
  XtSetArg(args[n], XmNautoUnmanage, False); ++n;
  findDialog = XmCreateFormDialog(win, "findDialog", args, n);
  XmStringFree(s);

  //----- "find" and "close" buttons
  n = 0;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNleftOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomOffset, 4); ++n;
  XtSetArg(args[n], XmNnavigationType, XmEXCLUSIVE_TAB_GROUP); ++n;
  okBtn = XmCreatePushButton(findDialog, "Find", args, n);
  XtManageChild(okBtn);
  XtAddCallback(okBtn, XmNactivateCallback,
		&findFindCbk, (XtPointer)this);
  n = 0;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNrightOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomOffset, 4); ++n;
  XtSetArg(args[n], XmNnavigationType, XmEXCLUSIVE_TAB_GROUP); ++n;
  closeBtn = XmCreatePushButton(findDialog, "Close", args, n);
  XtManageChild(closeBtn);
  XtAddCallback(closeBtn, XmNactivateCallback,
		&findCloseCbk, (XtPointer)this);

  //----- checkboxes
  n = 0;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNleftOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNbottomWidget, okBtn); ++n;
  XtSetArg(args[n], XmNindicatorType, XmN_OF_MANY); ++n;
#if XmVERSION <= 1
  XtSetArg(args[n], XmNindicatorOn, True); ++n;
#else
  XtSetArg(args[n], XmNindicatorOn, XmINDICATOR_FILL); ++n;
#endif
  XtSetArg(args[n], XmNset, XmUNSET); ++n;
  s = XmStringCreateLocalized("Search backward");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  findBackwardToggle = XmCreateToggleButton(findDialog, "backward", args, n);
  XmStringFree(s);
  XtManageChild(findBackwardToggle);
  n = 0;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNleftWidget, findBackwardToggle); ++n;
  XtSetArg(args[n], XmNleftOffset, 16); ++n;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNrightOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNbottomWidget, okBtn); ++n;
  XtSetArg(args[n], XmNindicatorType, XmN_OF_MANY); ++n;
#if XmVERSION <= 1
  XtSetArg(args[n], XmNindicatorOn, True); ++n;
#else
  XtSetArg(args[n], XmNindicatorOn, XmINDICATOR_FILL); ++n;
#endif
  XtSetArg(args[n], XmNset, XmUNSET); ++n;
  s = XmStringCreateLocalized("Match case");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  findCaseSensitiveToggle =
      XmCreateToggleButton(findDialog, "matchCase", args, n);
  XmStringFree(s);
  XtManageChild(findCaseSensitiveToggle);

  //----- search string entry
  n = 0;
  XtSetArg(args[n], XmNtopAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNtopOffset, 4); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNbottomWidget, findBackwardToggle); ++n;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNleftOffset, 2); ++n;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNrightOffset, 2); ++n;
  form1 = XmCreateForm(findDialog, "form", args, n);
  XtManageChild(form1);
  n = 0;
  XtSetArg(args[n], XmNtopAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_FORM); ++n;
  s = XmStringCreateLocalized("Find text: ");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  label = XmCreateLabel(form1, "label", args, n);
  XmStringFree(s);
  XtManageChild(label);
  n = 0;
  XtSetArg(args[n], XmNtopAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNbottomAttachment, XmATTACH_FORM); ++n;
  XtSetArg(args[n], XmNleftAttachment, XmATTACH_WIDGET); ++n;
  XtSetArg(args[n], XmNleftWidget, label); ++n;
  XtSetArg(args[n], XmNrightAttachment, XmATTACH_FORM); ++n;
  findText = XmCreateTextField(form1, "text", args, n);
  XtManageChild(findText);
#ifdef LESSTIF_VERSION
  XtAddCallback(findText, XmNactivateCallback,
		&findFindCbk, (XtPointer)this);
#endif

  //----- dialog parameters
  n = 0;
  XtSetArg(args[n], XmNdefaultButton, okBtn); ++n;
  XtSetArg(args[n], XmNcancelButton, closeBtn); ++n;
#if XmVersion > 1001
  XtSetArg(args[n], XmNinitialFocus, findText); ++n;
#endif
  XtSetValues(findDialog, args, n);
}

void XPDFViewer::findFindCbk(Widget widget, XtPointer ptr,
			     XtPointer callData) {
  XPDFViewer *viewer = (XPDFViewer *)ptr;

  viewer->doFind(gFalse);
}

void XPDFViewer::mapFindDialog() {
  XmTextFieldSetSelection(findText, 0, XmTextFieldGetLastPosition(findText),
			  XtLastTimestampProcessed(display));
  XmTextFieldSetInsertionPosition(findText, 0);
  XtManageChild(findDialog);
}

void XPDFViewer::doFind(GBool next) {
  if (XtWindow(findDialog)) {
    XDefineCursor(display, XtWindow(findDialog), core->getBusyCursor());
  }
  core->find(XmTextFieldGetString(findText),
	     XmToggleButtonGetState(findCaseSensitiveToggle),
	     next,
	     XmToggleButtonGetState(findBackwardToggle),
	     gFalse);
  if (XtWindow(findDialog)) {
    XUndefineCursor(display, XtWindow(findDialog));
  }
}

void XPDFViewer::findCloseCbk(Widget widget, XtPointer ptr,
			      XtPointer callData) {
  XPDFViewer *viewer = (XPDFViewer *)ptr;

  XtUnmanageChild(viewer->findDialog);
}

//------------------------------------------------------------------------
// GUI code: "save as" dialog
//------------------------------------------------------------------------

void XPDFViewer::initSaveAsDialog() {
  Arg args[20];
  int n;
  XmString s1, s2, s3;
  GString *dir;

  n = 0;
  s1 = XmStringCreateLocalized("Save");
  XtSetArg(args[n], XmNokLabelString, s1); ++n;
  s2 = XmStringCreateLocalized("*.[Pp][Dd][Ff]");
  XtSetArg(args[n], XmNpattern, s2); ++n;
  s3 = XmStringCreateLocalized(xpdfAppName ": Save as");
  XtSetArg(args[n], XmNdialogTitle, s3); ++n;
  XtSetArg(args[n], XmNdialogStyle, XmDIALOG_PRIMARY_APPLICATION_MODAL); ++n;
  XtSetArg(args[n], XmNautoUnmanage, True); ++n;
  saveAsDialog = XmCreateFileSelectionDialog(win, "saveAsDialog", args,