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https://invent.kde.org/graphics/okular
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![Frederik Gladhorn](/assets/img/avatar_default.png)
Seems like kDebug doesn't spam the user, so this needs to use qCDebug.
This reverts commit 34fbdf8c85
.
712 lines
25 KiB
C++
712 lines
25 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
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/*
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* Copyright (c) 1994 Paul Vojta. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* NOTE:
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* xdvi is based on prior work as noted in the modification history, below.
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*/
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/*
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* DVI previewer for X.
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*
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* Eric Cooper, CMU, September 1985.
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*
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* Code derived from dvi-imagen.c.
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*
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* Modification history:
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* 1/1986 Modified for X.10 --Bob Scheifler, MIT LCS.
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* 7/1988 Modified for X.11 --Mark Eichin, MIT
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* 12/1988 Added 'R' option, toolkit, magnifying glass
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* --Paul Vojta, UC Berkeley.
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* 2/1989 Added tpic support --Jeffrey Lee, U of Toronto
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* 4/1989 Modified for System V --Donald Richardson, Clarkson Univ.
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* 3/1990 Added VMS support --Scott Allendorf, U of Iowa
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* 7/1990 Added reflection mode --Michael Pak, Hebrew U of Jerusalem
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* 1/1992 Added greyscale code --Till Brychcy, Techn. Univ. Muenchen
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* and Lee Hetherington, MIT
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* 4/1994 Added DPS support, bounding box
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* --Ricardo Telichevesky
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* and Luis Miguel Silveira, MIT RLE.
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*/
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//#define DEBUG_RENDER 0
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#include <config.h>
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#include "dviRenderer.h"
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#include "dvi.h"
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#include "dviFile.h"
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#include "hyperlink.h"
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#include "kvs_debug.h"
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#include "psgs.h"
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//#include "renderedDviPagePixmap.h"
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#include "TeXFont.h"
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#include "textBox.h"
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#include "xdvi.h"
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#include <klocale.h>
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#include <QPainter>
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/** Routine to print characters. */
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void dviRenderer::set_char(unsigned int cmd, unsigned int ch)
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{
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#ifdef DEBUG_RENDER
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kDebug(kvs::dvi) << "set_char #" << ch;
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#endif
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glyph *g;
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if (colorStack.isEmpty())
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g = ((TeXFont *)(currinf.fontp->font))->getGlyph(ch, true, globalColor);
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else
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g = ((TeXFont *)(currinf.fontp->font))->getGlyph(ch, true, colorStack.top());
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if (g == NULL)
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return;
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long dvi_h_sav = currinf.data.dvi_h;
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QImage pix = g->shrunkenCharacter;
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int x = ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))) - g->x2;
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int y = currinf.data.pxl_v - g->y2;
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// Draw the character.
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foreGroundPainter->drawImage(x, y, pix);
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// Are we drawing text for a hyperlink? And are hyperlinks
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// enabled?
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if (HTML_href != NULL) {
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// Now set up a rectangle which is checked against every mouse
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// event.
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if (line_boundary_encountered == true) {
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// Set up hyperlink
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Hyperlink dhl;
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dhl.baseline = currinf.data.pxl_v;
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dhl.box.setRect(x, y, pix.width(), pix.height());
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dhl.linkText = *HTML_href;
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currentlyDrawnPage->hyperLinkList.push_back(dhl);
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} else {
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QRect dshunion = currentlyDrawnPage->hyperLinkList[currentlyDrawnPage->hyperLinkList.size()-1].box.unite(QRect(x, y, pix.width(), pix.height())) ;
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currentlyDrawnPage->hyperLinkList[currentlyDrawnPage->hyperLinkList.size()-1].box = dshunion;
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}
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}
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// Are we drawing text for a source hyperlink? And are source
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// hyperlinks enabled?
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// If we are printing source hyperlinks are irrelevant, otherwise we
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// actually got a pointer to a RenderedDviPagePixmap.
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RenderedDviPagePixmap* currentDVIPage = dynamic_cast<RenderedDviPagePixmap*>(currentlyDrawnPage);
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if (source_href != 0 && currentDVIPage) {
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// Now set up a rectangle which is checked against every mouse
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// event.
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if (line_boundary_encountered == true) {
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// Set up source hyperlinks
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Hyperlink dhl;
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dhl.baseline = currinf.data.pxl_v;
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dhl.box.setRect(x, y, pix.width(), pix.height());
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if (source_href != NULL)
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dhl.linkText = *source_href;
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else
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dhl.linkText = "";
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currentDVIPage->sourceHyperLinkList.push_back(dhl);
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} else {
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QRect dshunion = currentDVIPage->sourceHyperLinkList[currentDVIPage->sourceHyperLinkList.size()-1].box.unite(QRect(x, y, pix.width(), pix.height())) ;
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currentDVIPage->sourceHyperLinkList[currentDVIPage->sourceHyperLinkList.size()-1].box = dshunion;
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}
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}
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// Code for DVI -> text functions (e.g. marking of text, full text
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// search, etc.). Set up the currentlyDrawnPage->textBoxList.
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TextBox link;
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link.box.setRect(x, y, pix.width(), pix.height());
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link.text = "";
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currentlyDrawnPage->textBoxList.push_back(link);
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switch(ch) {
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case 0x0b:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ff";
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break;
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case 0x0c:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "fi";
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break;
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case 0x0d:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "fl";
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break;
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case 0x0e:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ffi";
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break;
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case 0x0f:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ffl";
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break;
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case 0x7b:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '-';
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break;
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case 0x7c:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "---";
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break;
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case 0x7d:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "\"";
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break;
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case 0x7e:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '~';
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break;
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case 0x7f:
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "@@"; // @@@ check!
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break;
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default:
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if ((ch >= 0x21) && (ch <= 0x7a))
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += QChar(ch);
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else
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currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '?';
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break;
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}
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if (cmd == PUT1)
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currinf.data.dvi_h = dvi_h_sav;
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else
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currinf.data.dvi_h += (int)(currinf.fontp->scaled_size_in_DVI_units * dviFile->getCmPerDVIunit() *
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(1200.0 / 2.54)/16.0 * g->dvi_advance_in_units_of_design_size_by_2e20 + 0.5);
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word_boundary_encountered = false;
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line_boundary_encountered = false;
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}
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void dviRenderer::set_empty_char(unsigned int, unsigned int)
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{
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return;
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}
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void dviRenderer::set_vf_char(unsigned int cmd, unsigned int ch)
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{
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#ifdef DEBUG_RENDER
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kDebug(kvs::dvi) << "dviRenderer::set_vf_char( cmd=" << cmd << ", ch=" << ch << " )";
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#endif
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static unsigned char c;
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macro *m = &currinf.fontp->macrotable[ch];
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if (m->pos == NULL) {
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kError(kvs::dvi) << "Character " << ch << " not defined in font " << currinf.fontp->fontname << endl;
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m->pos = m->end = &c;
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return;
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}
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long dvi_h_sav = currinf.data.dvi_h;
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struct drawinf oldinfo = currinf;
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currinf.data.w = 0;
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currinf.data.x = 0;
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currinf.data.y = 0;
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currinf.data.z = 0;
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currinf.fonttable = &(currinf.fontp->vf_table);
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currinf._virtual = currinf.fontp;
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quint8 *command_ptr_sav = command_pointer;
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quint8 *end_ptr_sav = end_pointer;
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command_pointer = m->pos;
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end_pointer = m->end;
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draw_part(currinf.fontp->scaled_size_in_DVI_units*(dviFile->getCmPerDVIunit() * 1200.0 / 2.54)/16.0, true);
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command_pointer = command_ptr_sav;
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end_pointer = end_ptr_sav;
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currinf = oldinfo;
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if (cmd == PUT1)
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currinf.data.dvi_h = dvi_h_sav;
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else
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currinf.data.dvi_h += (int)(currinf.fontp->scaled_size_in_DVI_units * dviFile->getCmPerDVIunit() *
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(1200.0 / 2.54)/16.0 * m->dvi_advance_in_units_of_design_size_by_2e20 + 0.5);
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}
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void dviRenderer::set_no_char(unsigned int cmd, unsigned int ch)
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{
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#ifdef DEBUG_RENDER
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kDebug(kvs::dvi) << "dviRenderer::set_no_char( cmd=" << cmd << ", ch =" << ch << " )" ;
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#endif
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if (currinf._virtual) {
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currinf.fontp = currinf._virtual->first_font;
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if (currinf.fontp != NULL) {
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currinf.set_char_p = currinf.fontp->set_char_p;
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(this->*currinf.set_char_p)(cmd, ch);
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return;
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}
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}
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errorMsg = i18n("The DVI code set a character of an unknown font.");
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return;
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}
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void dviRenderer::draw_part(double current_dimconv, bool is_vfmacro)
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{
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#ifdef DEBUG_RENDER
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kDebug(kvs::dvi) << "draw_part";
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#endif
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qint32 RRtmp=0, WWtmp=0, XXtmp=0, YYtmp=0, ZZtmp=0;
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quint8 ch;
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currinf.fontp = NULL;
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currinf.set_char_p = &dviRenderer::set_no_char;
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int last_space_index = 0;
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bool space_encountered = false;
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bool after_space = false;
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for (;;) {
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space_encountered = false;
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ch = readUINT8();
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if (ch <= (unsigned char) (SETCHAR0 + 127)) {
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(this->*currinf.set_char_p)(ch, ch);
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} else
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if (FNTNUM0 <= ch && ch <= (unsigned char) (FNTNUM0 + 63)) {
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currinf.fontp = currinf.fonttable->value(ch - FNTNUM0);
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if (currinf.fontp == NULL) {
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errorMsg = i18n("The DVI code referred to font #%1, which was not previously defined.", ch - FNTNUM0);
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return;
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}
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currinf.set_char_p = currinf.fontp->set_char_p;
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} else {
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qint32 a, b;
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switch (ch) {
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case SET1:
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case PUT1:
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(this->*currinf.set_char_p)(ch, readUINT8());
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break;
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case SETRULE:
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if (is_vfmacro == false) {
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word_boundary_encountered = true;
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line_boundary_encountered = true;
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}
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/* Be careful, dvicopy outputs rules with height =
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0x80000000. We don't want any SIGFPE here. */
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a = readUINT32();
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b = readUINT32();
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b = ((long) (b * current_dimconv));
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if (a > 0 && b > 0) {
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int h = ((int) ROUNDUP(((long) (a * current_dimconv)), shrinkfactor * 65536));
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int w = ((int) ROUNDUP(b, shrinkfactor * 65536));
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if (colorStack.isEmpty())
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foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
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currinf.data.pxl_v - h + 1, w?w:1, h?h:1, globalColor );
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else
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foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
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currinf.data.pxl_v - h + 1, w?w:1, h?h:1, colorStack.top() );
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}
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currinf.data.dvi_h += b;
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break;
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case PUTRULE:
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if (is_vfmacro == false) {
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word_boundary_encountered = true;
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line_boundary_encountered = true;
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}
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a = readUINT32();
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b = readUINT32();
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a = ((long) (a * current_dimconv));
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b = ((long) (b * current_dimconv));
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if (a > 0 && b > 0) {
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int h = ((int) ROUNDUP(a, shrinkfactor * 65536));
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int w = ((int) ROUNDUP(b, shrinkfactor * 65536));
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if (colorStack.isEmpty())
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foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
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currinf.data.pxl_v - h + 1, w?w:1, h?h:1, globalColor );
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else
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foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
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currinf.data.pxl_v - h + 1, w?w:1, h?h:1, colorStack.top() );
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}
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break;
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case NOP:
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break;
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case BOP:
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if (is_vfmacro == false) {
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word_boundary_encountered = true;
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line_boundary_encountered = true;
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}
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command_pointer += 11 * 4;
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currinf.data.dvi_h = 1200 << 16; // Reminder: DVI-coordinates start at (1",1") from top of page
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currinf.data.dvi_v = 1200;
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currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
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currinf.data.w = currinf.data.x = currinf.data.y = currinf.data.z = 0;
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break;
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case EOP:
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// Check if we are just at the end of a virtual font macro.
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if (is_vfmacro == false) {
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// This is really the end of a page, and not just the end
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// of a macro. Mark the end of the current word.
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word_boundary_encountered = true;
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line_boundary_encountered = true;
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// Sanity check for the dvi-file: The DVI-standard asserts
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// that at the end of a page, the stack should always be
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// empty.
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if (!stack.isEmpty()) {
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kDebug(kvs::dvi) << "DRAW: The stack was not empty when the EOP command was encountered.";
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errorMsg = i18n("The stack was not empty when the EOP command was encountered.");
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return;
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}
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}
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return;
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case PUSH:
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stack.push(currinf.data);
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break;
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case POP:
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if (stack.isEmpty()) {
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errorMsg = i18n("The stack was empty when a POP command was encountered.");
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return;
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} else
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currinf.data = stack.pop();
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word_boundary_encountered = true;
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line_boundary_encountered = true;
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break;
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case RIGHT1:
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case RIGHT2:
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case RIGHT3:
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case RIGHT4:
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RRtmp = readINT(ch - RIGHT1 + 1);
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// A horizontal motion in the range 4 * font space [f] < h <
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// font space [f] will be treated as a kern that is not
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// indicated in the printouts that DVItype produces between
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// brackets. We allow a larger space in the negative
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// direction than in the positive one, because TEX makes
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// comparatively large backspaces when it positions
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// accents. (comments stolen from the source of dvitype)
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if ((is_vfmacro == false) &&
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(currinf.fontp != 0) &&
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((RRtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (RRtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) &&
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(currentlyDrawnPage->textBoxList.size() > 0)) {
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//currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
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space_encountered = true;
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}
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currinf.data.dvi_h += ((long) (RRtmp * current_dimconv));
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break;
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case W1:
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case W2:
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case W3:
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case W4:
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WWtmp = readINT(ch - W0);
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currinf.data.w = ((long) (WWtmp * current_dimconv));
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case W0:
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if ((is_vfmacro == false) &&
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(currinf.fontp != 0) &&
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((WWtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (WWtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) &&
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(currentlyDrawnPage->textBoxList.size() > 0) ) {
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//currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
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space_encountered = true;
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}
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currinf.data.dvi_h += currinf.data.w;
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break;
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case X1:
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case X2:
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case X3:
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case X4:
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XXtmp = readINT(ch - X0);
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currinf.data.x = ((long) (XXtmp * current_dimconv));
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case X0:
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if ((is_vfmacro == false) &&
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(currinf.fontp != 0) &&
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((XXtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (XXtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) &&
|
|
(currentlyDrawnPage->textBoxList.size() > 0)) {
|
|
//currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
|
|
space_encountered = true;
|
|
}
|
|
currinf.data.dvi_h += currinf.data.x;
|
|
break;
|
|
|
|
case DOWN1:
|
|
case DOWN2:
|
|
case DOWN3:
|
|
case DOWN4:
|
|
{
|
|
qint32 DDtmp = readINT(ch - DOWN1 + 1);
|
|
if ((is_vfmacro == false) &&
|
|
(currinf.fontp != 0) &&
|
|
(abs(DDtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) &&
|
|
(currentlyDrawnPage->textBoxList.size() > 0)) {
|
|
word_boundary_encountered = true;
|
|
line_boundary_encountered = true;
|
|
space_encountered = true;
|
|
if (abs(DDtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6))
|
|
currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
|
|
}
|
|
currinf.data.dvi_v += ((long) (DDtmp * current_dimconv))/65536;
|
|
currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
|
|
}
|
|
break;
|
|
|
|
case Y1:
|
|
case Y2:
|
|
case Y3:
|
|
case Y4:
|
|
YYtmp = readINT(ch - Y0);
|
|
currinf.data.y = ((long) (YYtmp * current_dimconv));
|
|
case Y0:
|
|
if ((is_vfmacro == false) &&
|
|
(currinf.fontp != 0) &&
|
|
(abs(YYtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) &&
|
|
(currentlyDrawnPage->textBoxList.size() > 0)) {
|
|
word_boundary_encountered = true;
|
|
line_boundary_encountered = true;
|
|
space_encountered = true;
|
|
if (abs(YYtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6))
|
|
currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
|
|
}
|
|
currinf.data.dvi_v += currinf.data.y/65536;
|
|
currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
|
|
break;
|
|
|
|
case Z1:
|
|
case Z2:
|
|
case Z3:
|
|
case Z4:
|
|
ZZtmp = readINT(ch - Z0);
|
|
currinf.data.z = ((long) (ZZtmp * current_dimconv));
|
|
case Z0:
|
|
if ((is_vfmacro == false) &&
|
|
(currinf.fontp != 0) &&
|
|
(abs(ZZtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) &&
|
|
(currentlyDrawnPage->textBoxList.size() > 0)) {
|
|
word_boundary_encountered = true;
|
|
line_boundary_encountered = true;
|
|
space_encountered = true;
|
|
if (abs(ZZtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6))
|
|
currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
|
|
}
|
|
currinf.data.dvi_v += currinf.data.z/65536;
|
|
currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
|
|
break;
|
|
|
|
case FNT1:
|
|
case FNT2:
|
|
case FNT3:
|
|
currinf.fontp = currinf.fonttable->value(readUINT(ch - FNT1 + 1));
|
|
if (currinf.fontp == NULL) {
|
|
errorMsg = i18n("The DVI code referred to a font which was not previously defined.");
|
|
return;
|
|
}
|
|
currinf.set_char_p = currinf.fontp->set_char_p;
|
|
break;
|
|
|
|
case FNT4:
|
|
currinf.fontp = currinf.fonttable->value(readINT(ch - FNT1 + 1));
|
|
if (currinf.fontp == NULL) {
|
|
errorMsg = i18n("The DVI code referred to a font which was not previously defined.");
|
|
return;
|
|
}
|
|
currinf.set_char_p = currinf.fontp->set_char_p;
|
|
break;
|
|
|
|
case XXX1:
|
|
case XXX2:
|
|
case XXX3:
|
|
case XXX4:
|
|
if (is_vfmacro == false) {
|
|
word_boundary_encountered = true;
|
|
line_boundary_encountered = true;
|
|
space_encountered = true;
|
|
}
|
|
a = readUINT(ch - XXX1 + 1);
|
|
if (a > 0) {
|
|
char *cmd = new char[a+1];
|
|
strncpy(cmd, (char *)command_pointer, a);
|
|
command_pointer += a;
|
|
cmd[a] = '\0';
|
|
applicationDoSpecial(cmd);
|
|
delete [] cmd;
|
|
}
|
|
break;
|
|
|
|
case FNTDEF1:
|
|
case FNTDEF2:
|
|
case FNTDEF3:
|
|
case FNTDEF4:
|
|
command_pointer += 12 + ch - FNTDEF1 + 1;
|
|
{
|
|
quint8 tempa = readUINT8();
|
|
quint8 tempb = readUINT8();
|
|
command_pointer += tempa + tempb;
|
|
}
|
|
break;
|
|
|
|
case PRE:
|
|
case POST:
|
|
case POSTPOST:
|
|
errorMsg = i18n("An illegal command was encountered.");
|
|
return;
|
|
break;
|
|
|
|
default:
|
|
errorMsg = i18n("The unknown op-code %1 was encountered.", ch);
|
|
return;
|
|
} /* end switch*/
|
|
} /* end else (ch not a SETCHAR or FNTNUM) */
|
|
|
|
#ifdef DEBUG_RENDER
|
|
if (currentlyDrawnPage->textBoxList.size() > 0)
|
|
kDebug(kvs::dvi) << "Element:"
|
|
<< currentlyDrawnPage->textBoxList.last().box
|
|
<< currentlyDrawnPage->textBoxList.last().text
|
|
<< " ? s:" << space_encountered
|
|
<< " / nl:" << line_boundary_encountered
|
|
<< " / w:" << word_boundary_encountered
|
|
<< ", " << last_space_index << "/"
|
|
<< currentlyDrawnPage->textBoxList.size();
|
|
#endif
|
|
|
|
/* heuristic to properly detect newlines; a space is needed */
|
|
if (after_space &&
|
|
line_boundary_encountered && word_boundary_encountered) {
|
|
if (currentlyDrawnPage->textBoxList.last().text.endsWith('\n'))
|
|
currentlyDrawnPage->textBoxList.last().text.chop(1);
|
|
currentlyDrawnPage->textBoxList.last().text += " \n";
|
|
after_space = false;
|
|
}
|
|
|
|
/* a "space" has been found and there is some (new) character
|
|
in the array */
|
|
if (space_encountered &&
|
|
(currentlyDrawnPage->textBoxList.size() > last_space_index)) {
|
|
for (int lidx = last_space_index+1; lidx<currentlyDrawnPage->textBoxList.size(); ++lidx) {
|
|
// merge two adjacent boxes which are part of the same word
|
|
currentlyDrawnPage->textBoxList[lidx-1].box.setRight(currentlyDrawnPage->textBoxList[lidx].box.x());
|
|
}
|
|
#ifdef DEBUG_RENDER
|
|
QString lastword(currentlyDrawnPage->textBoxList[last_space_index].text);
|
|
for (int lidx = last_space_index+1; lidx<currentlyDrawnPage->textBoxList.size(); ++lidx)
|
|
lastword += currentlyDrawnPage->textBoxList[lidx].text;
|
|
kDebug(kvs::dvi) << "space encountered: '" << lastword << "'";
|
|
#endif
|
|
last_space_index = currentlyDrawnPage->textBoxList.size();
|
|
after_space = true;
|
|
}
|
|
} /* end for */
|
|
}
|
|
|
|
|
|
void dviRenderer::draw_page()
|
|
{
|
|
// Reset a couple of variables
|
|
HTML_href = 0;
|
|
source_href = 0;
|
|
penWidth_in_mInch = 0.0;
|
|
|
|
// Calling resize() here rather than clear() means that the memory
|
|
// taken up by the vector is not freed. This is faster than
|
|
// constantly allocating/freeing memory.
|
|
currentlyDrawnPage->textBoxList.resize(0);
|
|
|
|
RenderedDviPagePixmap* currentDVIPage = dynamic_cast<RenderedDviPagePixmap*>(currentlyDrawnPage);
|
|
if (currentDVIPage)
|
|
{
|
|
currentDVIPage->sourceHyperLinkList.resize(0);
|
|
}
|
|
|
|
#ifdef PERFORMANCE_MEASUREMENT
|
|
// If this is the first time a page is drawn, take the time that is
|
|
// elapsed till the kdvi_multipage was constructed, and print
|
|
// it. Set the flag so that is message will not be printed again.
|
|
if (performanceFlag == 0) {
|
|
kDebug(kvs::dvi) << "Time elapsed till the first page is drawn: " << performanceTimer.restart() << "ms";
|
|
performanceFlag = 1;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef DEBUG_RENDER
|
|
kDebug(kvs::dvi) <<"draw_page";
|
|
#endif
|
|
|
|
#if 0
|
|
if (!accessibilityBackground)
|
|
{
|
|
#endif
|
|
foreGroundPainter->fillRect( foreGroundPainter->viewport(), PS_interface->getBackgroundColor(current_page) );
|
|
#if 0
|
|
}
|
|
else
|
|
{
|
|
// In accessiblity mode use the custom background color
|
|
foreGroundPainter->fillRect( foreGroundPainter->viewport(), accessibilityBackgroundColor );
|
|
}
|
|
#endif
|
|
|
|
// Render the PostScript background, if there is one.
|
|
if (_postscript)
|
|
{
|
|
#if 0
|
|
// In accessiblity mode use the custom background color
|
|
if (accessibilityBackground)
|
|
{
|
|
// Flag permanent is set to false because otherwise we would not be able to restore
|
|
// the original background color.
|
|
PS_interface->setBackgroundColor(current_page, accessibilityBackgroundColor, false);
|
|
}
|
|
else
|
|
#endif
|
|
PS_interface->restoreBackgroundColor(current_page);
|
|
|
|
PS_interface->graphics(current_page, resolutionInDPI, dviFile->getMagnification(), foreGroundPainter);
|
|
}
|
|
|
|
// Now really write the text
|
|
if (dviFile->page_offset.isEmpty() == true)
|
|
return;
|
|
if (current_page < dviFile->total_pages) {
|
|
command_pointer = dviFile->dvi_Data() + dviFile->page_offset[int(current_page)];
|
|
end_pointer = dviFile->dvi_Data() + dviFile->page_offset[int(current_page+1)];
|
|
} else
|
|
command_pointer = end_pointer = 0;
|
|
|
|
memset((char *) &currinf.data, 0, sizeof(currinf.data));
|
|
currinf.fonttable = &(dviFile->tn_table);
|
|
currinf._virtual = 0;
|
|
|
|
double fontPixelPerDVIunit = dviFile->getCmPerDVIunit() * 1200.0/2.54;
|
|
|
|
draw_part(65536.0*fontPixelPerDVIunit, false);
|
|
if (HTML_href != 0) {
|
|
delete HTML_href;
|
|
HTML_href = 0;
|
|
}
|
|
if (source_href != 0) {
|
|
delete source_href;
|
|
source_href = 0;
|
|
}
|
|
}
|