xpdfviewer.cc

source code: Covert TXT to PDF

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

  viewer->core->gotoNextPage(10, gTrue);
  viewer->core->takeFocus();
}

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

  viewer->core->goBackward();
  viewer->core->takeFocus();
}

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

  viewer->core->goForward();
  viewer->core->takeFocus();
}

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

  XtVaGetValues(widget, XmNuserData, &userData, NULL);
  if ((int)userData != viewer->core->getZoom()) {
    viewer->displayPage(viewer->core->getPageNum(), (int)userData,
			viewer->core->getRotate(), gTrue, gFalse);
  }
  viewer->core->takeFocus();
}

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

  if (!viewer->core->getDoc()) {
    return;
  }
  XtManageChild(viewer->findDialog);
}

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

  if (!viewer->core->getDoc()) {
    return;
  }
  XtManageChild(viewer->printDialog);
}

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

  XtManageChild(viewer->aboutDialog);
}

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

  viewer->app->quit();
}

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

  viewer->mapOpenDialog(gFalse);
}

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

  viewer->mapOpenDialog(gTrue);
}

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

  viewer->reloadFile();
}

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

  if (!viewer->core->getDoc()) {
    return;
  }
  viewer->mapSaveAsDialog();
}

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

  r = viewer->core->getRotate();
  r = (r == 0) ? 270 : r - 90;
  viewer->displayPage(viewer->core->getPageNum(), viewer->core->getZoom(),
		      r, gTrue, gFalse);
}

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

  r = viewer->core->getRotate();
  r = (r == 270) ? 0 : r + 90;
  viewer->displayPage(viewer->core->getPageNum(), viewer->core->getZoom(),
		      r, gTrue, gFalse);
}

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

  viewer->app->close(viewer, gFalse);
}

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

  viewer->app->close(viewer, gTrue);
}

void XPDFViewer::pageNumCbk(Widget widget, XtPointer ptr,
			    XtPointer callData) {
  XPDFViewer *viewer = (XPDFViewer *)ptr;
  char *s, *p;
  int pg;
  char buf[20];

  if (!viewer->core->getDoc()) {
    goto err;
  }
  s = XmTextFieldGetString(viewer->pageNumText);
  for (p = s; *p; ++p) {
    if (!isdigit(*p)) {
      goto err;
    }
  }
  pg = atoi(s);
  if (pg < 1 || pg > viewer->core->getDoc()->getNumPages()) {
    goto err;
  }
  viewer->displayPage(pg, viewer->core->getZoom(),
		      viewer->core->getRotate(), gFalse, gTrue);
  viewer->core->takeFocus();
  return;

 err:
  XBell(viewer->display, 0);
  sprintf(buf, "%d", viewer->core->getPageNum());
  XmTextFieldSetString(viewer->pageNumText, buf);
}

void XPDFViewer::updateCbk(void *data, GString *fileName,
			   int pageNum, int numPages, char *linkLabel) {
  XPDFViewer *viewer = (XPDFViewer *)data;
  GString *title;
  char buf[20];
  XmString s;

  if (fileName) {
    if (!(title = viewer->app->getTitle())) {
      title = (new GString(xpdfAppName))->append(": ")->append(fileName);
    }
    XtVaSetValues(viewer->win, XmNtitle, title->getCString(),
		  XmNiconName, title->getCString(), NULL);
    if (!viewer->app->getTitle()) {
      delete title;
    }
#ifndef DISABLE_OUTLINE
    if (!viewer->app->getFullScreen()) {
      viewer->setupOutline();
    }
#endif
    viewer->setupPrintDialog();
  }

  if (pageNum >= 0) {
    s = XmStringCreateLocalized("");
    XtVaSetValues(viewer->linkLabel, XmNlabelString, s, NULL);
    XmStringFree(s);
    sprintf(buf, "%d", pageNum);
    XmTextFieldSetString(viewer->pageNumText, buf);
    XtVaSetValues(viewer->prevTenPageBtn, XmNsensitive,
		  pageNum > 1, NULL);
    XtVaSetValues(viewer->prevPageBtn, XmNsensitive,
		  pageNum > 1, NULL);
    XtVaSetValues(viewer->nextTenPageBtn, XmNsensitive,
		  pageNum < viewer->core->getDoc()->getNumPages(), NULL);
    XtVaSetValues(viewer->nextPageBtn, XmNsensitive,
		  pageNum < viewer->core->getDoc()->getNumPages(), NULL);
    XtVaSetValues(viewer->backBtn, XmNsensitive,
		  viewer->core->canGoBack(), NULL);
    XtVaSetValues(viewer->forwardBtn, XmNsensitive,
		  viewer->core->canGoForward(), NULL);
  }

  if (numPages >= 0) {
    sprintf(buf, " of %d", numPages);
    s = XmStringCreateLocalized(buf);
    XtVaSetValues(viewer->pageCountLabel, XmNlabelString, s, NULL);
    XmStringFree(s);
  }

  if (linkLabel) {
    s = XmStringCreateLocalized(linkLabel);
    XtVaSetValues(viewer->linkLabel, XmNlabelString, s, NULL);
    XmStringFree(s);
  }
}


//------------------------------------------------------------------------
// GUI code: outline
//------------------------------------------------------------------------

#ifndef DISABLE_OUTLINE

void XPDFViewer::setupOutline() {
  GList *items;
  UnicodeMap *uMap;
  GString *enc;
  int i;

  // unmanage and destroy the old labels
  if (outlineLabels) {
    XtUnmanageChildren(outlineLabels, outlineLabelsLength);
    for (i = 0; i < outlineLabelsLength; ++i) {
      XtDestroyWidget(outlineLabels[i]);
    }
    gfree(outlineLabels);
    outlineLabels = NULL;
    outlineLabelsLength = outlineLabelsSize = 0;
  }

  // create the new labels
  items = core->getDoc()->getOutline()->getItems();
  if (items && items->getLength() > 0) {
    enc = new GString("Latin1");
    uMap = globalParams->getUnicodeMap(enc);
    delete enc;
    setupOutlineItems(items, NULL, uMap);
    uMap->decRefCnt();
  }

  // manage the new labels
  XtManageChildren(outlineLabels, outlineLabelsLength);
}

void XPDFViewer::setupOutlineItems(GList *items, Widget parent,
				   UnicodeMap *uMap) {
  OutlineItem *item;
  GList *kids;
  Widget label;
  Arg args[20];
  GString *title;
  char buf[8];
  XmString s;
  int i, j, n;

  for (i = 0; i < items->getLength(); ++i) {
    item = (OutlineItem *)items->get(i);
    title = new GString();
    for (j = 0; j < item->getTitleLength(); ++j) {
      n = uMap->mapUnicode(item->getTitle()[j], buf, sizeof(buf));
      title->append(buf, n);
    }
    n = 0;
    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->getPaperColor()); ++n;
    label = XmCreateLabelGadget(outlineTree, "label", args, n);
    XmStringFree(s);
    if (outlineLabelsLength == outlineLabelsSize) {
      outlineLabelsSize += 64;
      outlineLabels = (Widget *)grealloc(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) {
    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];
  XmFontListEntry entry;

  //----- 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
  entry = XmFontListEntryLoad(
		display,
		"-*-times-bold-i-normal--20-*-*-*-*-*-iso8859-1",
		XmFONT_IS_FONT, XmFONTLIST_DEFAULT_TAG);
  aboutBigFont = XmFontListAppendEntry(NULL, entry);
  XmFontListEntryFree(&entry);
  entry = XmFontListEntryLoad(
		display,
		"-*-times-medium-r-normal--16-*-*-*-*-*-iso8859-1",
		XmFONT_IS_FONT, XmFONTLIST_DEFAULT_TAG);
  aboutVersionFont = XmFontListAppendEntry(NULL, entry);
  XmFontListEntryFree(&entry);
  entry = XmFontListEntryLoad(
		display,
		"-*-courier-medium-r-normal--12-*-*-*-*-*-iso8859-1",
		XmFONT_IS_FONT, XmFONTLIST_DEFAULT_TAG);
  aboutFixedFont = XmFontListAppendEntry(NULL, entry);
  XmFontListEntryFree(&entry);

  //----- heading
  n = 0;
  s = XmStringCreateLocalized("Xpdf");
  XtSetArg(args[n], XmNlabelString, s); ++n;
  XtSetArg(args[n], XmNfontList, aboutBigFont); ++n;
  label = XmCreateLabel(col, "h0", args, n);