118 строки
3.9 KiB
C++
118 строки
3.9 KiB
C++
//========================================================================
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//
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// ImageOutputDev.h
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//
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// Copyright 1998-2003 Glyph & Cog, LLC
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//
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//========================================================================
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//========================================================================
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//
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// Modified under the Poppler project - http://poppler.freedesktop.org
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//
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// All changes made under the Poppler project to this file are licensed
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// under GPL version 2 or later
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//
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// Copyright (C) 2006 Rainer Keller <class321@gmx.de>
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// Copyright (C) 2008 Timothy Lee <timothy.lee@siriushk.com>
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// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
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// Copyright (C) 2010 Jakob Voss <jakob.voss@gbv.de>
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//
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// To see a description of the changes please see the Changelog file that
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// came with your tarball or type make ChangeLog if you are building from git
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//
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//========================================================================
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#ifndef IMAGEOUTPUTDEV_H
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#define IMAGEOUTPUTDEV_H
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#include "poppler/poppler-config.h"
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#ifdef USE_GCC_PRAGMAS
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#pragma interface
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#endif
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#include <stdio.h>
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#include "goo/gtypes.h"
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#include "OutputDev.h"
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class GfxState;
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//------------------------------------------------------------------------
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// ImageOutputDev
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//------------------------------------------------------------------------
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class ImageOutputDev: public OutputDev {
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public:
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// Create an OutputDev which will write images to files named
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// <fileRoot>-NNN.<type> or <fileRoot>-PPP-NNN.<type>, if
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// <pageNames> is set. Normally, all images are written as PBM
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// (.pbm) or PPM (.ppm) files. If <dumpJPEG> is set, JPEG images
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// are written as JPEG (.jpg) files.
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ImageOutputDev(char *fileRootA, GBool pageNamesA, GBool dumpJPEGA);
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// Destructor.
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virtual ~ImageOutputDev();
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// Check if file was successfully created.
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virtual GBool isOk() { return ok; }
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// Does this device use beginType3Char/endType3Char? Otherwise,
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// text in Type 3 fonts will be drawn with drawChar/drawString.
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virtual GBool interpretType3Chars() { return gFalse; }
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// Does this device need non-text content?
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virtual GBool needNonText() { return gTrue; }
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// Start a page
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virtual void startPage(int pageNumA, GfxState *state)
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{ pageNum = pageNumA; }
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//---- get info about output device
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// Does this device use upside-down coordinates?
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// (Upside-down means (0,0) is the top left corner of the page.)
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virtual GBool upsideDown() { return gTrue; }
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// Does this device use drawChar() or drawString()?
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virtual GBool useDrawChar() { return gFalse; }
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//----- image drawing
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virtual void drawImageMask(GfxState *state, Object *ref, Stream *str,
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int width, int height, GBool invert,
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GBool interpolate, GBool inlineImg);
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virtual void drawImage(GfxState *state, Object *ref, Stream *str,
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int width, int height, GfxImageColorMap *colorMap,
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GBool interpolate, int *maskColors, GBool inlineImg);
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virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
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int width, int height,
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GfxImageColorMap *colorMap,
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GBool interpolate,
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Stream *maskStr, int maskWidth, int maskHeight,
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GBool maskInvert, GBool maskInterpolate);
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virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
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int width, int height,
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GfxImageColorMap *colorMap,
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GBool interpolate,
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Stream *maskStr,
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int maskWidth, int maskHeight,
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GfxImageColorMap *maskColorMap,
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GBool maskInterpolate);
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private:
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// Sets the output filename with a given file extension
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void setFilename(const char *fileExt);
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char *fileRoot; // root of output file names
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char *fileName; // buffer for output file names
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GBool dumpJPEG; // set to dump native JPEG files
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GBool pageNames; // set to include page number in file names
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int pageNum; // current page number
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int imgNum; // current image number
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GBool ok; // set up ok?
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};
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#endif
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